WO2011156953A1 - Signal processing scheme for touch control screen - Google Patents

Signal processing scheme for touch control screen Download PDF

Info

Publication number
WO2011156953A1
WO2011156953A1 PCT/CN2010/073972 CN2010073972W WO2011156953A1 WO 2011156953 A1 WO2011156953 A1 WO 2011156953A1 CN 2010073972 W CN2010073972 W CN 2010073972W WO 2011156953 A1 WO2011156953 A1 WO 2011156953A1
Authority
WO
WIPO (PCT)
Prior art keywords
touch
signal
electrode line
electrode
point
Prior art date
Application number
PCT/CN2010/073972
Other languages
French (fr)
Chinese (zh)
Inventor
陈其良
刘海平
Original Assignee
智点科技（深圳）有限公司
智点科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 智点科技（深圳）有限公司, 智点科技有限公司 filed Critical 智点科技（深圳）有限公司
Priority to PCT/CN2010/073972 priority Critical patent/WO2011156953A1/en
Priority to CN2010800017002A priority patent/CN102439545A/en
Publication of WO2011156953A1 publication Critical patent/WO2011156953A1/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
    • G06F3/04186—Touch location disambiguation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
    • G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
    • G06F3/04883—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures for inputting data by handwriting, e.g. gesture or text
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04104—Multi-touch detection in digitiser, i.e. details about the simultaneous detection of a plurality of touching locations, e.g. multiple fingers or pen and finger

Definitions

  • the present invention relates to a signal processing scheme for a touch screen, and more particularly to a signal processing scheme for a capacitive touch screen and a touch panel display. Background technique
  • Touch is the most important way of human perception, the most natural way for people to interact with machines. Touch screen development has been widely used in many fields such as personal computers, smart phones, public information, smart home appliances, industrial control and so on. In the current touch field, there are mainly resistive touch screens, photoelectric touch screens, ultrasonic touch screens, and flat capacitive touch screens. In recent years, projected capacitive touch screens have developed rapidly.
  • Resistive touch screen is still the leading product on the market, but the structure of the two-layer substrate of the resistive touch screen makes the reflection of the touch screen greatly affect the brightness of the display when the touch screen and the display panel are stacked together. Display quality such as contrast, color saturation, etc., greatly degrades the overall display quality, and increases the brightness of the backlight of the display panel, which also causes the power consumption to rise; the analog resistive touch screen also has the problem of positioning drift, from time to time. Position calibration; In addition, the working mode of the resistive touch screen electrode makes the life of the touch screen shorter.
  • Infrared touch screens and ultrasonic touch screens do not affect display quality.
  • the infrared touch screen and the ultrasonic touch screen are costly, and water droplets and dust can affect the reliability of the touch screen operation, especially the infrared touch screen and the ultrasonic touch screen mechanism are complicated, and the power consumption is large, so that the infrared Touch screens and ultrasonic touch screens are basically not available on portable products.
  • the structure of the single-layer substrate of the flat capacitive touch screen makes the touch screen have little effect on the display quality when the touch screen and the display panel are stacked together.
  • the planar capacitive touch screen also has the problem of positioning drift. Position calibration is performed from time to time. Water droplets also affect the reliability of the touch screen operation; especially the planar capacitive touch screen consumes a lot of power and costs, and also makes the plane Capacitive touch screens are basically not available on portable products.
  • the projected capacitive touch screen has little effect on display quality and high sensitivity.
  • the projected capacitive touch screen has high requirements on the resistance value of the detecting electrode line, so that the detecting electrode line of the projected capacitive touch screen used in combination with the display panel cannot be transparent only with low conductivity such as ITO.
  • the electrode layer also has a high conductivity electrode layer such as a metal, which has a complicated manufacturing process and high cost, and is particularly expensive in terms of a large-sized or even a large-sized touch screen.
  • the projected capacitive touch screen is not a true digital touch screen. The positioning point needs to undergo complicated calculation. The distributed capacitance in the manufacturing and use environment will affect the reliability of the touch screen operation.
  • the display drive signal And the interference of other electrical signals will affect the work of the touch screen; in the case of multi-touch screens, in order to eliminate the non-realistic touch positioning points commonly known as "ghost points", the "contact” of real touch positioning is obtained, and the simulation is performed.
  • the calculus workload is even larger, and the requirements for driving chip computing speed and processing data are higher, and the power consumption of the system is also increased.
  • the sensitivity of the touch screen is high enough, and the sensitivity is high, which is easy to cause an accidental touch, and the touch action cannot be different depending on the touch intensity of the operator's finger.
  • the invention is a solution for a touch signal and a data processing proposed in order to realize a multifunctional and easy-to-operate digital capacitive touch screen.
  • the touch signal refers to an analog signal before digital-to-analog conversion, or The digital-to-analog converted digital signal
  • the processing refers to a method, condition, and result of determining based on the measured analog signal or digital signal.
  • the invention compares the time sequence of the touch signals generated by different touch electrodes on the line without comparing the complex simulation, or compares the size of the touch signals on different touch electrodes, or simulates a single touch electrode.
  • the size of the online touch signal to distinguish the "contact” and "ghost point” in multi-touch; and to distinguish the "touch” and “touch” in the touch with a double threshold scheme to achieve Different operations.
  • a signal processing scheme of a touch screen having a substrate and a touch circuit, wherein the substrate is provided with not less than two sets of electrode groups each having m row electrode lines and n column electrode lines, wherein m and n are natural numbers greater than 2; the electrode lines of the two rows intersect with each other, and the electrode lines in the same group do not intersect each other; the leading ends of the electrode lines in the group may be set in the same direction or may be set In different directions, the lead ends may be disposed in two different directions of the electrode lines; the electrode line lead ends refer to the end points of the electrode lines extending from the touch area to the touch area and at the boundary of the touch area.
  • the touch circuit has a touch excitation source and a touch signal detection circuit; each electrode line of the row electrode group and the column electrode group is connected to the touch circuit, and the touch excitation source pairs the two groups of electrodes during the working period of the touch circuit A touch excitation signal is simultaneously applied to more than two electrode lines in the same group, and the touch signal detection circuit detects the touch signals on each electrode line simultaneously or in time to detect whether each electrode line is touched.
  • the touch circuit compares the time of the touch signals on the row or column electrode lines where the plurality of possible touch positioning points are located.
  • a feature or amplitude feature to determine a real touch location point among a plurality of possible touch location points; the touch location point is a touch object touch or When the touch screen is touched, a representative position coordinate point in the touch screen touch range; the possible touch positioning point means that the touch signals on the row and column electrode lines satisfy the touch positioning condition
  • the touch-pointing point is the touch-pointing point of the plurality of possible touch-pointing points that have a real touch object.
  • the touch screen is a digital capacitive touch screen or a display type touch screen.
  • the time feature of the touch signal on the row or column touch electrode line where the plurality of possible touch positioning points are located is compared to determine the real touch in the possible touch positioning point.
  • the positioning point is to determine the real touch positioning point among the plurality of possible touch positioning points by comparing the time sequence generated by the touch signals on the row or column touch electrode lines of the plurality of possible touch positioning points, and to determine the real touch positioning points among the plurality of possible touch positioning points.
  • the touch on the touch location point performs a functional operation.
  • the time sequence generated by comparing the touch signals on the row or column touch electrode lines where the plurality of possible touch positioning points are located is used to determine the plurality of possible touch positioning points.
  • the real touch positioning point is the intersection of the row electrode line of the newly added touch positioning point and the column electrode line of the newly added touch positioning point, and the new real touch positioning point is added;
  • the intersection of the row electrode line of the touch positioning point and the column electrode line of the newly added touch positioning point may be a new real touch positioning point; or the row electrode line of the newly added touch positioning point and The intersection of the column electrode lines that have the possible touch positioning points is a new real touch positioning point.
  • the plurality of possible touch positioning points are determined by comparing amplitude characteristics of touch signals on the row or column touch electrode lines where the plurality of possible touch positioning points are located.
  • the real touch positioning point is to compare the size of the touch signal on the touch electrode line of different rows or different columns, or by comparing the size of the touch signal on different lead ends of the same row or the same column electrode line, or by fitting
  • the size of the touch signal on the touch electrode line determines the actual touch positioning point among the plurality of possible touch positioning points, and performs functional operation on the touch on the real touch positioning point.
  • the comparing the size of the touch signal on the touch electrode line of different rows or different columns to determine the real touch positioning point among the plurality of possible touch positioning points refers to mutual Judging the position of the real touch point on the touch electrode line by comparing the size of the touch signal on different touch electrodes on the same set of electrode lines on the same set of electrode lines; Touch of a touch electrode line with a large control signal The touch point of the touch electrode line that is smaller than the touch signal is closer to the lead end of the touch electrode line.
  • the comparing the size of the touch signal on the touch electrode line of different rows or different columns to determine the real touch positioning point among the plurality of possible touch positioning points refers to mutual Comparing the size of the touch signals of the different touch terminals on the adjacent touch electrodes on the same set of electrode lines on the same set of electrode lines to determine the true touch point at the touch electrode The position of the line; the touch point is closer to the leading end of the touch electrode line with a larger touch signal.
  • the comparing the size of the touch signal on the same row or the same column of the touch electrode line to determine the real touch positioning point among the plurality of possible touch positioning points refers to
  • the touch electrodes are connected to the touch electrodes, and the touch signals on different touch terminals on the touch electrode line are compared to determine the position of the real touch points on the touch electrode lines; the touch points are closer to the touch electrode lines. The larger end of the touch signal.
  • determining the actual touch positioning point among the plurality of possible touch positioning points by fitting the size of the touch signal on one touch electrode line means that the touch signal exceeds The intersection of the touch threshold electrode line and the touch electrode line is a possible touch positioning point, and the touch signal line touch signal is matched by different combinations of all possible touch positioning points, and then The size of the touch signal actually measured by the touch electrode line is compared to determine one or more real touch positioning points on the touch electrode line.
  • the performing a functional operation on the touch on the real touch positioning point includes: responding to the touch and movement of a real touch positioning point within a preset time range, The response is an action that performs a "select” or “drag” or “write” function.
  • the performing a functional operation on the touch on the real touch positioning point includes a response to a relative movement of the plurality of real touch positioning points within a preset time range, the response Is the operation of performing a "select” or “drag” or “write” or “zoom in” or “zoom out” or “rotate” function.
  • the touch screen sets two signal thresholds for each touch electrode line, and the first signal threshold is smaller than the second signal threshold; when the touch signal on the touch electrode line exceeds the first signal threshold When the threshold is smaller than the second signal threshold, the touch screen uses the touch electrode line whose touch signal exceeds the first signal threshold and is smaller than the second signal threshold as the touched electrode line, and the touched electrode line and the column touched electrode line are The intersection is positioned as a touch point; when the touch signal on the touched touch electrode line exceeds the second signal threshold, the touch screen uses the touch electrode line whose touch signal exceeds the second signal threshold as the pressed electrode line The intersection of the row-pressed electrode line and the column-pressed electrode line is positioned as a contact point.
  • the touch screen sets a signal threshold for each touch electrode line, and sets a threshold value of the number of adjacent touch electrode lines whose touch signal exceeds the signal threshold;
  • the set number threshold It can be one or more, and the number threshold can be the touch quantity threshold, the touch quantity threshold, and the holding number, respectively.
  • the threshold value, the grip quantity threshold is greater than the touch quantity threshold, and the touch quantity threshold is greater than or equal to the touch quantity threshold.
  • the touch screen exceeds the signal by the touch signal.
  • the threshold touch electrode line is the touched electrode line, and the intersection of the line touched electrode line and the column touched electrode line is positioned as a touch point; when the touch signal exceeds the signal threshold, the number of adjacent touch electrode lines is more than the touch
  • the touch screen uses the touch electrode line whose touch signal exceeds the signal threshold as the pressed electrode line, and the intersection of the row of pressed electrode lines and the column of pressed electrodes Positioning as a touch point; when the number of adjacent touch electrodes exceeding the signal threshold exceeds the threshold value of the touch threshold, the touch screen uses the touch electrode line whose touch signal exceeds the signal threshold as the held electrode line.
  • the intersection of the row held electrode line and the column held electrode line is positioned as a holding point.
  • the touch screen performs a touch prompt operation on the located touch point; the touch screen performs a touch prompt function or a functional operation on the located touch point, The touch screen does not operate on the positioned grip point.
  • the touch prompting operation performed by the touch screen on the positioned touch point is such that a part of the display screen or the display screen is changed before being touched;
  • the touch-pressing operation performed by the touch screen on the positioned touch pressure point is to change the part of the display screen or the display screen before being touched, or to make the display screen or the display screen partially touched. After being touched, it is changed after being touched and before being touched.
  • the touch function operation performed by the touch system on the positioned touch point includes the touch and movement of a real touch positioning point within a preset time range.
  • the response is an operation that performs a "select” or “drag” or “write” or “zoom in” or “zoom out” or “rotate” function.
  • the thickness of the "writing” stroke changes according to the size of the touch signal, or exceeds the signal with the touch signal.
  • the threshold number of adjacent touch electrode lines changes; the larger the touch signal is, or the more the number of adjacent touch electrode lines exceeds the signal threshold, the thicker the "writing" stroke is.
  • the touch screen determines the possibility of touch by comparing the change amount or the change rate of the touch signal between different rows or different column electrode lines of the plurality of possible touch positioning points. The actual touch positioning point on the electrode line where the positioning point is located.
  • one of the touch screens is one of the touch screens.
  • the intersection of the electrode lines is a touch positioning point; in particular, the center electrode line intersection among a plurality of electrode line intersections satisfying effective touch positioning conditions
  • the cross point is the touch positioning point; or the position of the non-electrode line intersection point may be the touch positioning point.
  • the time characteristic or the amplitude characteristic of the touch signal on the touch electrode line is compared, and the plurality of possible touch positioning points are excluded.
  • Multi-touch "ghost point" to determine the real touch positioning point in multi-touch, making multi-touch possible.
  • a solution for judging the touch strength is also proposed, and the touch is divided into “touch” and “touch” according to the touch force, and different touch operations are implemented to achieve different touch effects.
  • FIG. 1 is a schematic diagram of electrical connections and structures of a first embodiment and a second embodiment of the present invention
  • FIG. 2 is a schematic diagram of electrical connections and structures according to a third embodiment of the present invention.
  • FIG. 3 is a schematic diagram of electrical connections and structures of a fourth embodiment of the present invention.
  • 4a is a schematic diagram of electrical connections and structures of a fifth embodiment of the present invention.
  • 4b is an equivalent circuit diagram of the touch row electrode according to Embodiment 5 of the present invention.
  • FIG. 5 is a waveform diagram of a touch signal according to Embodiment 6 of the present invention.
  • Figure 6 is a schematic view showing the electrical connection and structure of a eighth embodiment of the present invention.
  • Figure 7 is a schematic view showing the electrical connection and structure of a ninth embodiment of the present invention. detailed description
  • the touch screen 100 shown in FIG. 1 has a substrate 110 and a touch circuit 120.
  • the substrate 110 is provided with two sets of row electrode groups 111 each having m row electrode lines and a column electrode group 112 having n column electrode lines. Where m and n are natural numbers greater than 2; the electrode lines of the two rows intersect with each other, and the electrode lines of the same group do not intersect each other; the lead ends of the respective electrode lines in the group are disposed in the same direction, the electrode lines
  • the terminal is an end point of the electrode line extending from the touch area to the touch area, and the touch circuit 120 has a touch excitation source 130, a line touch signal detecting circuit 140, and a column touch signal.
  • the detecting circuit 150; the electrode lines of the row electrode group 111 and the column electrode group 112 are respectively connected to the row touch signal detecting circuit 140 and the column touch signal detecting circuit 150; during the working period of the touch circuit, the touch excitation source pair
  • the two sets of electrode lines or more than two electrode lines in the same group simultaneously apply a touch excitation signal, and the touch signal detection circuit simultaneously or time-divisionally detects the touch signals on each electrode line to detect whether each electrode line is touched. bump.
  • the specific implementation manner is to determine multi-touch.
  • the signal processing solution determines the position of the touch electrode line where the real touch point is located according to the time feature of the touch control point.
  • the operator first touches the intersection of the i-th row and the f-th column (i, f), and the touch signal detecting circuit 140 performs the touch signal detection on the i-th row electrode line in the row electrode group 111.
  • the circuit 150 detects the touch signal satisfying the effective touch condition on the f-th column electrode line in the column electrode group 112; since only one contact has no "ghost point", the touch circuit 120 obtains the intersection point. The judgment of the real touch positioning point on (i, f). Then, the operator touches again the vicinity of the intersection (j, e) of the jth row and the eth column, and the i-th row and the j-th row electrode line of the touch signal detecting circuit 140 in the row electrode line group 111.
  • the upper touch signal detecting circuit 150 detects the touch signals satisfying the effective touch conditions on the e-th column and the f-th row electrode lines in the column electrode group 112; although the row electrode lines i, j and The column electrode lines e and f are all possible touch electrode lines, and three possible touch positioning points (i, e), (j, e), (j, f) are added; The chronological order, after the corresponding touch electrode lines of the existing real touch positioning points (i, f) are the i-th row electrode lines and the f-th column electrode lines, the j-th row electrode with the touch signal is generated.
  • the touch circuit 120 can judge that the intersection point (j, e) is a new real touch positioning point, and the other two possible touch positioning points (i, e), (j, f) It’s just a "ghost point.”
  • the touch screen can perform "prompt operation” or “functional operation” on the detected real touch positioning points (i, f) and (j, e); the “instructive operation” is to make the display or The part of the display screen is changed after being touched, or the operation of "dragging” or “zooming in” or “zooming out” or “rotating” functions; the functional operation is to perform “select” or “drag” “Or” the operation of "writing” or “zooming in” or “zooming out” or “rotating” functions; the “selecting” operation is when the touch screen detects a real touch positioning point, the display screen enters the next display state.
  • the “drag” operation is a partial follow contact movement of the display screen or the display screen when the real touch positioning point moves on the screen;
  • the "zoom in” operation is at two real touch positioning points When moving away from each other, a part of the display screen or the display screen is enlarged;
  • the "reduction” operation is when the two real touch positioning points are close to each other, the display screen or a part of the display screen is reduced;
  • the "rotation” operation is relative to two real touch positioning points When moving, the display screen or a part of the display screen is rotated;
  • the "writing” operation is to generate a handwriting following the contact movement when the real touch positioning point moves on the screen;
  • the interpolation operation may be performed according to the size of the touch signals on the plurality of touch electrode lines to locate the position of the handwriting between the touch electrode lines.
  • the structure and electrical connection of the touch screen 100 are the same as those of the first embodiment.
  • the specific implementation manner is to judge multi-touch, and the signal processing scheme is incompatible with the same-direction terminal.
  • the position of the touch electrode line where the real touch point is located is determined by comparing the size of the touch signal on the different touch electrode lines between the touch electrodes of the same group.
  • the operator simultaneously touches the vicinity of the intersection (i, f) of the i-th row and the f-th column and the intersection (j, e) of the j-th row and the e-th column, and the row touch signal detecting circuit 140 is at the row electrode In the i-th row and the j-th row electrode line of the line group 111, the column touch signal detecting circuit 150 detects that the effective touch is satisfied on the e-th column and the f-th row electrode line in the column electrode group 112, respectively.
  • the touch signal of the condition; the row electrode line i, j and the column electrode line e, f having the touch signal are the touch electrode lines corresponding to the touch touch point, and there may be four touch point points, respectively (i, e), (i, f), (j, e), (j, f).
  • the touch signals on the row electrode lines i and j satisfy the condition of effective touch, the sizes of the touch signals on the row electrode lines i and the row electrode lines j are different, and the touch signal detecting circuit 120 compares the row electrodes.
  • the touch signal on the line j is larger than the amplitude of the touch signal on the row electrode line i, and the real touch positioning point on the row electrode line j is closer to the true touch positioning point on the row electrode line i.
  • the leading end of the electrode line in the four possible touch positioning points (i, e), (i, f), (j, e), (j, f), the possible touch positioning points near the leading end of the row electrode line (j, e) is the real touch positioning point on the row electrode line j, and the possible touch positioning points (i, f) far from the leading end of the row electrode line are the real touch positioning points on the row electrode line i, and the other two
  • the touch sensing points (i, e) and (j, f) are just "ghost points".
  • the touch signal detecting circuit 120 compares the touch signals on the column electrode lines e with respect to the column electrode lines f.
  • the amplitude of the touch signal is large, and the real touch positioning point on the column electrode line e is more than the real touch on the column electrode line f
  • the bit is closer to the leading end of the column electrode line, and in the four possible touch positioning points (i, e), (i, f), (j, e), (j, f), close to the column electrode line leading end
  • the touch positioning point (j, e) may be a real touch positioning point on the column electrode line e, and the possible touch positioning point (i, f) far from the column electrode line leading end is the real touch positioning on the column electrode line f.
  • Point again confirm that the other two possible touch positioning points (i, e), (j, f) are just "ghost points".
  • the touch screen 200 shown in FIG. 2 has a substrate 210 and a touch circuit 220.
  • the substrate 210 is provided with two sets of row electrode groups 211 each having m row electrode lines and a column electrode group 212 having n column electrode lines. Where m and n are natural numbers greater than 2; the electrode lines of the two rows intersect with each other, and the electrode lines of the same group do not intersect each other; the leading ends of the adjacent electrode lines of the row electrode group 211 are disposed in different directions
  • the lead ends of the electrode lines in the column electrode group 212 are disposed in the same direction, and the electrode line leading end refers to the electrode line extending from the touch area to the touch area, on the boundary of the touch area.
  • the touch circuit 220 has a touch excitation source 230 and a touch signal detection circuit.
  • the road electrodes 241 and 241, the column touch signal detecting circuit 250; the row electrode group 211 and the column electrode group 212 are respectively connected to the row touch signal detecting circuit 241, 241 and the column touch signal detecting circuit 250;
  • the touch excitation source simultaneously applies a touch excitation signal to two sets of electrode lines or more than two electrode lines in the same group, and the touch signal detection circuit detects the touch on each electrode line simultaneously or time-divisionally. Control signals to detect if each electrode is touched.
  • the specific implementation manner is to determine multi-touch, and the signal processing scheme is between adjacent touch electrode lines having different leading ends in the same group of electrode lines, and comparing the size of the touch signals on the adjacent touch electrode lines, To determine the position of the touch electrode line where the real touch point is located.
  • the operator simultaneously touches the intersection of the i-th row and the f-th column (i, f) and the intersection of the j-th row and the e-th column (j, e), when the row electrode group on the touch screen 210
  • the touch signal detecting circuits 241 and 242 detect the plurality of row electrode lines i_l, i, i+l, j_l, j, j+1 in the row electrode line group 211.
  • the touch signal detecting circuit 250 detects the touch signal satisfying the effective touch condition on the two column electrode lines e and f in the column electrode group 212;
  • the row electrode lines i_l, i, i+l, j_l, j, j+1 and the column electrode lines e, f of the control signal are the touch electrode lines corresponding to the touch sensing points;
  • the control object is at a representative position coordinate point within the touch screen touch range, so there may be four touch positioning points, namely (i, e), (i, f), (j, e), ( j, f).
  • touch signal detection The circuit 220 compares the sizes of the touch signals on the adjacent row electrode lines i_l, i, i+1, and obtains that the touch signals on the row electrode lines i_l, i+1 have larger amplitudes than the touch signals on the row electrode lines i.
  • the real touch positioning point on the row electrode line i is closer to the leading end of the row electrode lines i-1 and i+1, at the four possible touch positioning points (i, e), (i, f), ( j, e), (j, f), the possible touch positioning points (i, f) near the leading ends of the row electrode lines i-1 and i+1 are the real touch positioning points on the row electrode line i, away from the line
  • the possible touch positioning points (i, e) of the electrode lines i-1 and i+1 are the "ghost points"; likewise, the touch signal detecting circuit 220 compares the adjacent row electrode lines j_l, j, j+1 The size of the touch signal is obtained, and the touch signal on the row electrode line j is larger than the touch signal on the row electrode lines j_l, j+1, and the real touch positioning point on the row electrode line j is closer.
  • the possible touch positioning points near the leading end of the row electrode line j (j, e) is the real touch positioning point on the row electrode line j
  • the possible touch positioning point (j, f) away from the row electrode line j is the "ghost point"; for the sake of safety, it can be "touched” from the column direction
  • the dot signal and the ghost point are judged once, and the touch signal detecting circuit 220 compares the size of the touch signal on the column electrode lines e and f, and obtains the touch signal on the column electrode line e compared with the column electrode line f.
  • the amplitude of the control signal is large, and the actual touch positioning point on the column electrode line e is closer to the column electrode line than the real touch positioning point on the column electrode line f.
  • the possible touch near the leading end of the column electrode line The positioning point (j, e) is a real touch positioning point on the column electrode line e, and the possible touch positioning point (i, f) far from the column electrode line leading end is a real touch positioning point on the column electrode line f, and
  • the two possible touch points (i, e), (j, f) are just "ghost points".
  • one of the electrode line intersection points is a touch positioning point;
  • the intersection of the center electrode lines in the intersection of the plurality of electrode lines satisfying the effective touch positioning condition is a touch positioning point.
  • the touch screen can also determine the actual touch positioning point on the electrode line where the touch positioning point is located by comparing the change amount or the change rate of the touch signal between the electrode lines.
  • the touch screen 300 shown in FIG. 3 has a substrate 310 and a touch circuit 320.
  • the substrate 310 is provided with two sets of row electrode groups 311 each having m row electrode lines and a column electrode group 312 having n column electrode lines. Where m and n are natural numbers greater than 2; the electrode lines of the two rows intersect with each other, and the electrode lines of the same group do not intersect each other; the electrode lines of the row electrode group 311 are provided with the terminals at both ends of the line
  • Each of the electrode lines of the column electrode group 312 is provided with a lead end at a single end in the same direction, and the electrode line lead end extends from the touch area to the touch area, at the boundary of the touch area.
  • the touch circuit 320 has a touch excitation source 330, row touch signal detecting circuits 341 and 341, and a column touch signal detecting circuit 350.
  • the electrode lines of the row electrode group 311 and the column electrode group 312 are respectively connected to each other.
  • the touch signal detecting circuit detects the touch signals on each electrode line at the same time or in a time-sharing manner to detect whether each electrode is touched.
  • the specific implementation manner is to determine multi-touch.
  • the signal processing scheme is an electrode line of a row electrode group 311 having terminals at both ends. The size of the touch signal on the two terminals of the same electrode line is compared to determine the trueness. The position of the touch point on the touch electrode line.
  • the operator simultaneously touches the vicinity of the intersection (i, f) of the i-th row and the f-th column and the intersection (j, e) of the j-th row and the e-th column, and the touch signal detecting circuits 341, 342 are The touch signals satisfying the effective touch conditions are detected on the two row electrode lines i, j in the row electrode group 311, and the column touch signal detecting circuit 350 is in the column electrode group 312.
  • the touch signals satisfying the effective touch conditions are detected on the two column electrode lines e and f; the row electrode lines i, j and the column electrode lines e and f having the touch signals are corresponding to the touch touch points.
  • the touch electrode line so there may be four touch points, which are (i, e), (i, f), (j, e), (j, f). Although both ends of the row electrode lines i and j have touch signals, the sizes of the touch signals at both ends are different, and the touch circuit 320 compares the size of the touch signals at both ends of the row electrode lines i to obtain row electrodes.
  • the touch signal on the side of the line i near the touch signal detecting circuit 342 is larger than the amplitude of the touch signal on the side of the touch signal detecting circuit 341, and the real touch on the line electrode i
  • the control positioning point is closer to the leading end of the touch signal detecting circuit 342 - in the four possible touch positioning points (i, e), (i, f), (j, e), (j, f)
  • the possible touch positioning points (i, f) near the row electrode line i at the side of the touch signal detecting circuit 342 are the real touch positioning points on the row electrode line i, and the touch signal detection is near the row electrode line i.
  • Circuit 341 - the possible touch positioning point (i, e) of the side lead is the "ghost point"; likewise, the touch circuit 320 compares the size of the touch signal at both ends of the row electrode line j to obtain the proximity of the row electrode line j
  • the control signal detecting circuit 341 - the touch signal on the side lead is closer to the touch signal detecting circuit 342
  • the amplitude of the touch signal on the side lead is large, and the actual touch positioning point on the row electrode line j is closer to the leading end of the touch signal detecting circuit 341, at the four possible touch positioning points (i , e), (i, f), (j, e), (j, f), the possible touch positioning points (j, e) near the row electrode line j at the side of the touch signal detecting circuit 341
  • the real touch positioning point on the row electrode line j is close to the row electrode line j.
  • the possible touch positioning point (j, f) at the side of the touch signal detecting circuit 342 is the "
  • the touch electrode lines having the terminals at both ends may be row electrode lines, column electrode lines, or row and column electrodes, and both have bidirectional terminals.
  • the touch screen can perform "prompt operation” or "functional operation” on the detected real touch positioning point; the “presentation operation” is to make the display screen or the part of the display screen be touched after being touched.
  • the operation of the "or” rotation function; the “select” operation is when the touch screen detects the real touch positioning point, the display screen enters the next display state; the “drag” operation is true When the touch positioning point moves on the screen, the partial display of the display screen or the display screen follows the contact movement; the “magnification” operation is when the two real touch positioning points are away from each other, the display screen or the partial portion of the display screen is Zooming in; the “zooming out” operation is when the two real touch positioning points are close to each other, the display screen or the portion
  • the "writing" operation is to generate a handwriting following the contact movement when the real touch positioning point moves on the screen;
  • the interpolation operation may be performed according to the size of the touch signals on the plurality of touch electrode lines to locate the position of the handwriting between the touch electrode lines.
  • the touch screen 400 shown in FIG. 4a has a substrate 410 and a touch circuit 420.
  • the substrate 410 is provided with two sets of row electrode groups 411 having m row electrode lines and column electrode groups 412 having n column electrode lines. Where m and n are natural numbers greater than 2; the electrode lines of the two rows intersect with each other, and the electrode lines of the same group do not intersect each other; the leading ends of the electrode lines of the group are disposed in the same direction, the electrode lines
  • the terminal end refers to an end point of the electrode line extending from the touch area to the touch area and at the boundary of the touch area; the touch circuit 420 has the touch excitation source 430 and the line signal detecting circuit 440 and the column touch signal detecting circuit.
  • each electrode line of the row electrode group 411 and the column electrode group 412 are respectively connected to the row touch signal detecting circuit 440 and the column touch signal detecting circuit 450; during the working period of the touch circuit, the touch excitation source is paired
  • the electrode line or the pair of electrode lines in the same group simultaneously apply a touch signal, and the touch signal detecting circuit detects the touch signals on each electrode line at the same time or in a time-sharing manner to detect whether each electrode is touched.
  • the specific implementation manner is to determine multi-touch, and the signal processing scheme is that the intersection of the touch electrode line whose touch signal exceeds the signal threshold is a possible touch positioning point, and through different combinations of all possible touch positioning points, The size of the touch signal of the touch electrode line is compared with the size of the touch signal actually measured by the touch electrode line to determine that one or more real touch points on the touch electrode line are touched. Control the position on the electrode line.
  • the operator simultaneously touches the intersection of the i-th row and the e-th column (i, e), the intersection of the i-th row and the g- th column
  • the row touch signal detecting circuit 440 In the vicinity of (i, g), and in the vicinity of the intersection (j, f) of the jth row and the fth column, the row touch signal detecting circuit 440 is on both row electrode lines i, j in the row electrode group 411 A touch signal that satisfies the effective touch condition is detected, and the column touch signal detecting circuit 450 detects the touch signal satisfying the effective touch condition on the three column electrode lines e, f, and g in the column electrode group 412.
  • the row electrode lines i, j and the column electrode lines e, f, g having the touch signals are the touch electrode lines corresponding to the touch positioning points, so there may be six touch positioning points, respectively (i , e), (i, f), (i, g), (j, e), (j, f), (i, g).
  • FIG. 4b is a circuit model in which a finger touches a touch electrode line, where r is a resistance value of the row electrode line between adjacent column electrode lines, and Cf is a coupling capacitance between the finger touching the electrode line and the touch electrode line.
  • the coupling capacitance Cf between the finger and the touch electrode line is at the three column electrode lines e, f, g.
  • the row electrode line i or the row electrode line j is connected in a mathematical combination manner, and the size of the touch signal on the row electrode line i or the row electrode line j is calculated by fitting, and the row electrode line i or row is electrically connected.
  • the fitting calculation value of the coupling capacitor Cf is connected to the row electrode line i at the e-th column and the g-th column, which is consistent with the actually-measured touch signal size on the row electrode line i;
  • the fitting calculation value of the coupling capacitor Cf is connected at the f-th column, which coincides with the actually-measured touch signal size on the row electrode line j; thereby obtaining the intersection of the real touch positioning point in the ith row and the e-th column.
  • intersection of the point (i, e), the intersection of the i-th row and the g-th column (i, g), the intersection of the j-th row and the f-th column (j, f), and the six possible touch positioning points The remaining three (i, f), (j, e), (i, g) are just "ghost points.”
  • the touch screen performs a functional operation on the touch on the real touch positioning point, and the functional operation is to perform a "select” or “drag” or “write” or “zoom in” or “zoom out” or “rotate” function
  • the “select” operation is when the touch screen detects the real touch positioning point, the display screen enters the next display state; the "drag” operation is at the real touch positioning point on the screen When moving up, the partial display contact movement of the display screen or the display screen is performed; when the two real touch positioning points are away from each other, the display screen or a part of the display screen is enlarged; “Operation, when the two real touch positioning points are close to each other, the display screen or the part of the display screen is reduced; the "rotation” operation is to display the screen or display when the two real touch positioning points are relatively rotated.
  • the touch screen has a substrate and a touch circuit, and two rows of row electrode groups and column electrode groups are disposed on the substrate; the electrode lines of the two groups intersect with each other, and the electrode lines in the same group do not intersect each other; the touch circuit has touch The excitation source and the touch signal detecting circuit, the electrode lines of the row electrode group and the column electrode group are connected to the touch signal detecting circuit; in the working period of the touch circuit, the touch excitation source is opposite to the two sets of electrode lines or the same More than two electrode lines in the group are simultaneously provided with a touch excitation signal, and the touch signal detection circuit detects the touch signals on each electrode line at the same time or in a time-sharing manner to detect whether each electrode is touched.
  • the specific implementation manner is to determine the effective touch and touch intensity.
  • the signal processing scheme determines the touch force on the contact by comparing the touch signal amplitude with the preset signal threshold, and then determines that the touch is “touch”. "Or “touch”, perform the operation corresponding to "touch” or "touch”.
  • two signal thresholds T1 and T2 are set for each touch electrode line, and the first signal threshold T1 is smaller than the second signal threshold ⁇ 2; the touch signal detecting circuit detects that the touch electrode line has a touch signal S.
  • the touch circuit compares the touch signal S on the touch electrode line with a preset signal threshold, and the first signal threshold T1 is a touch threshold.
  • the second signal threshold T2 is a touch threshold, and the second signal threshold ⁇ 2 is greater than the first signal threshold T1.
  • the touch electrode line When the touch signal S1 on the touch electrode line is smaller than the first signal threshold T1, the touch electrode line is considered to be the untouched electrode line; when the touch signal S2 on the touch electrode line is greater than the first signal threshold T1 When the second signal threshold is less than ⁇ 2, the touch electrode line is considered to be the touched electrode line, and the intersection of the touched electrode line and the column touched electrode line is positioned as a touch point; when the touch signal on the touch electrode line is S3 When the second signal threshold is greater than ⁇ 2, the touch electrode line is considered to be the pressed electrode line, and the intersection of the row of pressed electrode lines and the column of pressed electrode lines is positioned as a contact point.
  • the touch screen performs an "instructive operation” on the positioned touch points, and performs “prompting operation” or “functional operation” on the positioned touch points.
  • “Prompt operation” is to make the display screen or part of the display screen change before being touched; the “functional operation” of the touch pressure includes the touch pressure of the contact within the preset time range.
  • the response to the move, the response is to perform a "select” or “drag” or “write” or "zoom in” or “zoom out” or
  • the touch screen has a substrate and a touch circuit, and the row electrode group and the column electrode group are disposed on the substrate; the electrode lines of the two groups intersect with each other, and the electrode lines of the same group do not intersect each other; the touch circuit has a touch excitation source And the touch signal detecting circuit, the electrode lines of the row electrode group and the column electrode group are connected to the touch signal detecting circuit; during the working period of the touch circuit, the touch excitation source is paired with two sets of electrode lines or within the same group More than two electrode lines are simultaneously provided with a touch excitation signal, and the touch signal detection circuit detects the touch signals on each electrode line at the same time or in a time-sharing manner to detect whether each electrode is touched.
  • the signal processing scheme is to set a signal threshold ⁇ and a quantity threshold ⁇ , and compare the number of adjacent touch electrode lines and the number threshold by the touch signal exceeding the signal threshold to determine the touch force on the contact, and then determine the touch. It is “touch” or “touch”, and performs the operation corresponding to "touch” or “touch”.
  • the touch panel has a touch electrode line whose touch signal exceeds a signal threshold.
  • the touch screen exceeds the signal threshold by the touch signal.
  • the control electrode line is a touched electrode line, and the intersection of the line touched electrode line and the column touched electrode line is positioned as a touch point; when the number of adjacent touch electrode lines whose touch signal exceeds the signal threshold exceeds the threshold value,
  • the touch screen uses the touch electrode line whose touch signal exceeds the signal threshold as the pressed electrode line, and positions the intersection of the line pressed electrode line and the column pressed electrode line as the contact point.
  • the touch signal detecting circuit detects that there is a touch signal on the touch electrode line, and the touch circuit compares the touch signal on the touch electrode line with a preset signal threshold ⁇ , and the touch signal on the touch electrode line When the signal threshold is less than ⁇ , the touch electrode line is considered to be untouched; when the touch signal on the touch electrode line is greater than the signal threshold ⁇ The touch electrode line whose touch signal on the line is greater than the signal threshold ⁇ is the touched electrode line, and the touch circuit detects that the touch signal adjacent to the touched electrode line is greater than the signal threshold T.
  • the number of lines n the touch circuit compares the number n of touch electrode lines with the number threshold N, and considers the touched electrode line when the number n of touch electrode lines whose adjacent touch signals are greater than the signal threshold T is less than the threshold value N For the touched electrode line, the intersection of the touched electrode line and the column touched electrode line is positioned as a touch point; when the number n of the touch electrode lines whose adjacent touch signals are greater than the signal threshold T is greater than the number threshold N, The touched electrode line is the pressed electrode line, and the intersection of the row of pressed electrode lines and the column of pressed electrode lines is positioned as a contact point.
  • the touch screen performs an "instructive operation” on the positioned touch points, and performs “prompting operation” or “functional operation” on the positioned touch points.
  • the “presentation operation” is an operation of causing a part of a display screen or a display screen to be changed after being touched, or “dragging" or “zooming in” or “zooming out” or “rotating” functions;
  • “Functional operation” includes having a response to the contact and movement of the contact within a preset time range, the response being a “select” or “drag” or “write” or “zoom in” or “zoom out” Or the operation of the "rotation” function; when the touch screen detects the real touch positioning point, the display screen enters the next display state; the "drag” operation is in the real touch When the control positioning point moves on the screen, the partial display contact movement of the display screen or the display screen is performed; when the two real touch positioning points are away from each other, the display screen or the part of the display screen is enlarged.
  • the “zoom out” operation is when the two real touch positioning points are close to each other, the display screen or the part of the display screen is reduced; the “rotation” operation is when the two real touch positioning points are relatively rotated. a part of the display screen or the display screen is rotated; the "writing” operation is to generate a handwriting following the movement of the contact point on the display screen when the real touch positioning point moves on the screen, performing "writing” When doing this, the thickness of the "writing” stroke changes with the size of the touch signal. The larger the touch signal, the thicker the "writing” stroke, and the "writing” operation can also be based on multiple touch electrodes. The size of the touch signal is interpolated to locate the position of the handwriting between the touch electrode lines.
  • one of the electrode line intersection points is a touch positioning point;
  • the intersection of the center electrode lines in the intersection of the plurality of electrode lines satisfying the effective touch positioning condition is the touch positioning point; or the position of the intersection of the non-electrode lines may be the touch positioning point.
  • the touch screen 600 shown in FIG. 6 has a substrate 610 and a touch circuit 620.
  • the substrate 610 is provided with two sets of row electrode groups 611 each having m row electrode lines and a column electrode group 612 having n column electrode lines. Where m and n are natural numbers greater than 2; the electrode lines of the two rows intersect with each other, and the electrode lines of the same group do not intersect each other;
  • Each of the electrode lines of the 611 group is provided with a lead end at the single end in the same direction on the line, and each of the electrode lines of the column electrode group 612 is provided with a lead end at the single end in the same direction on the line, and the electrode line lead end is
  • the finger electrode 620 has a touch excitation source 630, a touch signal detection circuit 640, and a column touch signal detection circuit 650; the touch circuit 620 has an end point on the boundary of the touch area;
  • the electrode lines of the row electrode group 611 and the column electrode group 612 are respectively connected to the row touch signal detecting
  • the specific implementation manner is to determine effective touch and touch strength.
  • the signal processing scheme is to set a signal threshold ⁇ for each touch electrode line of the touch screen, and set the number of adjacent touch electrode lines whose touch signal exceeds the signal threshold.
  • the number of thresholds N1, ⁇ 2, and ⁇ 3, the touch electrode line whose touch signal exceeds the signal threshold is the position of the touched electrode line, and according to whether the number of adjacent touch electrode lines exceeding the signal threshold exceeds the threshold number of touches, Nl, touch pressure
  • the quantity threshold ⁇ 2 or the holding quantity threshold ⁇ 3 determines whether the touch is in a touch, touch or holding state; the holding quantity threshold ⁇ 3 is greater than the touch quantity threshold ⁇ 2, and the touch quantity threshold ⁇ 2 is greater than or equal to The number of touch thresholds N1.
  • the operator simultaneously touches all the row electrode lines between the i-th row to the j-th row and all the column electrode lines between the e-th column and the f-th column, and the row touch signal detecting circuit 640 is in the row electrode line group 611.
  • a touch signal exceeding a signal threshold T is detected on all of the row electrode lines between the row electrode lines i and j, and the column touch signal detecting circuit 650 is in the column electrode line 612.
  • a touch signal exceeding a signal threshold T is detected on all of the column electrode lines; all rows between the row electrode lines i and j having the touch signal and the column electrode lines e, f
  • the electrode is the touch electrode line corresponding to the touch positioning point; the number of row level lines (j-i+1) between the row electrode lines i and j exceeding the signal threshold is compared with the number thresholds N1, N2 and N3 In comparison, the number of electric level lines (f-e+1) between the column electrode lines e, f exceeding the signal threshold is simultaneously compared with the column number thresholds N1, N2 and N3.
  • the touch screen does not perform an operation on the grip area.
  • the threshold number N3 is held, and at least one of the thresholds is greater than the threshold value N2
  • the row electrode line whose touch signal exceeds the signal threshold is the pressed electrode line, and the column signal line whose touch signal exceeds the signal threshold is pressed.
  • the touch threshold number N2 is greater than the touch threshold value N1
  • the row electrode line whose touch signal exceeds the signal threshold is the touched electrode line
  • the column electrode line whose touch signal exceeds the signal threshold is the touched electrode line.
  • the middle line of all the rows of the touched electrode lines is taken as a row representative line
  • the middle line of all the touched electrode lines is a column representative line
  • the intersection of the row representative line and the column representative line is positioned as a touch point;
  • the positioned touch points implement a touch prompt operation.
  • the row electrode line whose touch signal exceeds the signal threshold is the pressed electrode line, and the touch signal exceeds
  • the column electrode line of the signal threshold is the erected electrode line.
  • the touch screen 700 shown in FIG. 7 has a substrate 710 and two touch circuits 720.
  • the substrate 710 is provided with two sets of row electrode groups 711 having m row electrode lines and column electrode groups 712 having n column electrode lines. Where m and n are natural numbers greater than 2; the electrode lines of the two rows intersect with each other, and the electrode lines of the same group do not intersect each other; the electrode lines of the row electrode group 711 are disposed at the single end in the same direction on the line.
  • each of the electrode lines of the column electrode group 712 is provided with a terminal end at the single end in the same direction on the line, and the electrode wire terminal end extends from the touch area to the outside of the touch area.
  • the touch circuit 720 has a touch excitation source 730, a row touch signal detection circuit 740, and a column touch signal detection circuit 750; the electrode groups of the row electrode group 711 and the column electrode group 712 are respectively connected.
  • the specific implementation manner is to determine an effective touch.
  • the signal processing scheme is to set a signal threshold ⁇ for each touch electrode line of the touch screen, and set a threshold value of the number of adjacent touch electrode lines whose touch signal exceeds the signal threshold.
  • ⁇ and ⁇ the touch electrode line whose touch signal exceeds the signal threshold is the position of the touched electrode line, and according to whether the number of adjacent touch electrode lines exceeding the signal threshold exceeds the touch number threshold N1, the touch number threshold ⁇ 2 or Holding the threshold value ⁇ 3, determining that the touch is in a touch, touch, or holding state; the holding quantity threshold ⁇ 3 is greater than the touch quantity threshold ⁇ 2, and the touch quantity threshold ⁇ 2 is greater than or equal to the touch quantity threshold Nl.
  • the operator's palm supports the row electrode line between the i-th row to the j-th row on the touch screen and the column electrode line between the f-th column and the g-th column, and the touch signal detecting circuit 740 is on the row electrode line.
  • a touch signal exceeding a signal threshold T is detected on the row electrode line between the row electrode lines i and j in the group 711, and the column touch line detection unit 750 is in the column electrode line 712.
  • a touch signal exceeding the signal threshold T is detected on the column electrode line between g; while the operator supports the touch screen on the touch screen, the index finger also touches the electrode line of the jth line on the touch screen and the first The area where the e-column line intersects, the touch signal detecting circuit 740 detects a touch signal exceeding the signal threshold T in the vicinity of the row electrode line j in the row electrode group 711, and the column touch signal detecting circuit 750 is in the column.
  • a touch signal exceeding the signal threshold T is detected in the vicinity of the column electrode line e in the electrode line group 712.
  • the touch screen uses the column electrode line e as the pressed electrode line, and the intersection of the number of row electrode lines j and the pressed electrode line e is positioned as a contact point.
  • the touch screen has a holding area and a touch point, that is, the support area of the palm on the touch screen and the touch point of the index finger are detected; thus the touch screen can touch the positioned index finger.
  • the point is implemented by a touch-sensitive or functional operation without performing any operation on the support area of the palm of the touch screen.

Abstract

A signal processing scheme for a touch control screen is disclosed, and especially, a signal processing scheme for a capacitive touch control screen and a touch control flat panel display is disclosed. Without the need for complicated simulated calculations, the "contact point" and the "ghost point" during the multi-point touch control can be distinguished and actual touch control locating points during the multi-point touch control can be determined by comparing the time sequences generated by the touch control signals on different touch control electrode wires, or by comparing the sizes of the touch control signals on different touch control electrode wires, or by simulating the size of the touch control signal on a single touch control electrode wire, so as to make the multi-point touch control possible. A scheme for judging touch strength is also disclosed. By dividing the touch controls into "touch" and "press" according to the touch strength and implementing different touch control operations, the different touch control effects can be achieved.

Description

一种触控屏的信号处理方案  A signal processing scheme for a touch screen
技术领域 Technical field
本发明涉及触控屏的信号处理方案， 尤其涉及电容式触控屏和触控式平板显示器 的信号处理方案。 背景技术  The present invention relates to a signal processing scheme for a touch screen, and more particularly to a signal processing scheme for a capacitive touch screen and a touch panel display. Background technique
触摸是人类最重要的感知方式，是人与机器进行互动的最自然的方式。触控屏发展 至今已广泛用于个人计算机、 智能电话说、 公共信息、 智能家电、 工业控制等众多领域。 在目前的触控领域， 主要有电阻式触控屏、 光电式触控屏、 超声波式触控屏、 平面电 容式触控屏， 近年来投射电容式触控屏发展迅速书。  Touch is the most important way of human perception, the most natural way for people to interact with machines. Touch screen development has been widely used in many fields such as personal computers, smart phones, public information, smart home appliances, industrial control and so on. In the current touch field, there are mainly resistive touch screens, photoelectric touch screens, ultrasonic touch screens, and flat capacitive touch screens. In recent years, projected capacitive touch screens have developed rapidly.
电阻式触控屏仍是目前市场上的主导产品， 但电阻式触控屏的双层基板的结构， 使得触控屏和显示面板层叠在一起使用时， 触控屏的反光非常影响显示的亮度、 对比 度、 色饱和度等显示品质， 使整个显示质量大大下降， 而加大显示面板背光的亮度， 还会使功耗大涨； 模拟式电阻触控屏还存在定位漂移的问题， 不时要进行位置校准； 另外， 电阻式触控屏电极接触的工作方式， 又使得触控屏的寿命较短。  Resistive touch screen is still the leading product on the market, but the structure of the two-layer substrate of the resistive touch screen makes the reflection of the touch screen greatly affect the brightness of the display when the touch screen and the display panel are stacked together. Display quality such as contrast, color saturation, etc., greatly degrades the overall display quality, and increases the brightness of the backlight of the display panel, which also causes the power consumption to rise; the analog resistive touch screen also has the problem of positioning drift, from time to time. Position calibration; In addition, the working mode of the resistive touch screen electrode makes the life of the touch screen shorter.
红外线式触控屏和超声波式触控屏不会影响显示质量。 但红外线式触控屏和超声 波式触控屏成本高， 水滴和尘埃都会影响触控屏工作的可靠性， 特别是红外线式触控 屏和超声波式触控屏机构复杂、 功耗大， 使得红外线式触控屏和超声波式触控屏基本 无法应用在便携式产品上。  Infrared touch screens and ultrasonic touch screens do not affect display quality. However, the infrared touch screen and the ultrasonic touch screen are costly, and water droplets and dust can affect the reliability of the touch screen operation, especially the infrared touch screen and the ultrasonic touch screen mechanism are complicated, and the power consumption is large, so that the infrared Touch screens and ultrasonic touch screens are basically not available on portable products.
平面电容式触控屏的单层基板的结构， 使得触控屏和显示面板层叠在一起使用时， 触控屏对显示质量的影响不大。 但平面电容式触控屏也存在定位漂移的问题， 不时要 进行位置校准； 水滴也会影响触控屏工作的可靠性； 特别是平面电容式触控屏功耗大、 成本高， 也让平面电容式触控屏基本无法应用在便携式产品上。  The structure of the single-layer substrate of the flat capacitive touch screen makes the touch screen have little effect on the display quality when the touch screen and the display panel are stacked together. However, the planar capacitive touch screen also has the problem of positioning drift. Position calibration is performed from time to time. Water droplets also affect the reliability of the touch screen operation; especially the planar capacitive touch screen consumes a lot of power and costs, and also makes the plane Capacitive touch screens are basically not available on portable products.
投射电容式触控屏虽对显示质量的影响不大， 灵敏度也很高。 但投射电容式触控 屏对探测电极线的电阻值方面有较高要求， 使得和显示面板层叠在一起使用的投射电 容式触控屏的探测电极线， 不能只有如 ITO样的低电导率透明电极层， 还要有如金属 类的高电导率电极层， 制作工艺复杂、 成本高， 特别是在大尺寸、 甚至超大尺寸触控 屏方面成本过高。 投射电容式触控屏并非真正的数字式触控屏， 定位点需要经过复杂 的演算， 制造和使用环境中的分布电容都会影响触控屏工作的可靠性， 显示驱动信号 及其他电信号的干扰都会影响触控屏的工作； 在有多点触控屏幕时，为了排除俗称 "鬼 点"的非真实触控定位点， 获得真实触控定位的 "触点"， 模拟演算的工作量就更加大， 对驱动芯片运算速度和处理数据能力的要求都更加高， 也加大了系统的功耗。 另外， 为了让触控屏可轻松的使用， 触控屏的灵敏度就要够高， 灵敏度高就容易产生误触动， 更是无法让触控动作随操作者手指触碰力度的不同而不同。 The projected capacitive touch screen has little effect on display quality and high sensitivity. However, the projected capacitive touch screen has high requirements on the resistance value of the detecting electrode line, so that the detecting electrode line of the projected capacitive touch screen used in combination with the display panel cannot be transparent only with low conductivity such as ITO. The electrode layer also has a high conductivity electrode layer such as a metal, which has a complicated manufacturing process and high cost, and is particularly expensive in terms of a large-sized or even a large-sized touch screen. The projected capacitive touch screen is not a true digital touch screen. The positioning point needs to undergo complicated calculation. The distributed capacitance in the manufacturing and use environment will affect the reliability of the touch screen operation. The display drive signal And the interference of other electrical signals will affect the work of the touch screen; in the case of multi-touch screens, in order to eliminate the non-realistic touch positioning points commonly known as "ghost points", the "contact" of real touch positioning is obtained, and the simulation is performed. The calculus workload is even larger, and the requirements for driving chip computing speed and processing data are higher, and the power consumption of the system is also increased. In addition, in order to make the touch screen easy to use, the sensitivity of the touch screen is high enough, and the sensitivity is high, which is easy to cause an accidental touch, and the touch action cannot be different depending on the touch intensity of the operator's finger.
为了改善投电容式触控屏制作工艺复杂、成本高等问题，申请号为 200810133417. X 的 "一种触控式平板显示器"、 申请号为 200910140965. X的 "一种数字式电容触控屏" 和申请号为 200910205206. 7的 "一种电容式触控屏"等中国专利， 提出了真正的数字 式电容触控屏的方案， 让触控屏产生的触控信号在空间上更容易分辨。 发明内容  In order to improve the complexity of the production process of the capacitive touch screen, and the high cost, the application number is 200810133417. X "a touch panel display", application number 200910140965. X "a digital capacitive touch screen" And the Chinese patent of "a capacitive touch screen" with application number 200910205206. 7 proposes a true digital capacitive touch screen solution, which makes the touch signal generated by the touch screen easier to distinguish in space. Summary of the invention
本发明就是为了实现多功能、 易操作的数字式电容触控屏， 提出的一种对触控信 号和数据处理的方案， 所述触控信号是指在数模转换前的模拟信号， 或经数模转换后 的数字信号， 所述处理是指依据测量出的模拟信号或数字信号进行判断的方法、 条件 和结果。 本发明在不需通过复杂模拟演算的情况下， 通过比较不同触控电极线上触控 信号产生的时间顺序， 或通过比较不同触控电极线上触控信号的大小， 或模拟单一触 控电极线上触控信号的大小， 来区分多点触控时的 "触点"和 "鬼点"； 并以双阈值的 方案， 区分出触碰中的 "触摸"和 "触压"， 以实现不同的操作。  The invention is a solution for a touch signal and a data processing proposed in order to realize a multifunctional and easy-to-operate digital capacitive touch screen. The touch signal refers to an analog signal before digital-to-analog conversion, or The digital-to-analog converted digital signal, the processing refers to a method, condition, and result of determining based on the measured analog signal or digital signal. The invention compares the time sequence of the touch signals generated by different touch electrodes on the line without comparing the complex simulation, or compares the size of the touch signals on different touch electrodes, or simulates a single touch electrode. The size of the online touch signal to distinguish the "contact" and "ghost point" in multi-touch; and to distinguish the "touch" and "touch" in the touch with a double threshold scheme to achieve Different operations.
本发明的技术问题通过以下的技术方案予以解决：  The technical problem of the present invention is solved by the following technical solutions:
一种触控屏的信号处理方案， 所述触控屏具有基板和触控电路， 在基板上设置有 不少于两组分别有 m条行电极线和 n条列电极线的电极组， 其中 m和 n是大于 2的自 然数； 行列两组间电极线相互交叉， 同组内各条电极线互不相交； 组内各条电极线的 引出端， 可以是设置在相同方向， 也可以是设置在不同方向， 也可以是在电极线两个 不同方向都设置引出端； 所述的电极线引出端， 是指电极线从触控区域延伸向触控区 域外， 在触控区域边界上的端点； 触控电路具有触控激励源和触控信号检测电路； 行 电极组和列电极组的各条电极线连接触控电路， 在触控电路工作的时段中， 触控激励 源对两组电极线或对同组内多于两条电极线同时施加有触控激励信号， 触控信号检测 电路同时或分时检测各电极线上的触控信号， 来探测各电极线是否被触碰；  A signal processing scheme of a touch screen, the touch screen having a substrate and a touch circuit, wherein the substrate is provided with not less than two sets of electrode groups each having m row electrode lines and n column electrode lines, wherein m and n are natural numbers greater than 2; the electrode lines of the two rows intersect with each other, and the electrode lines in the same group do not intersect each other; the leading ends of the electrode lines in the group may be set in the same direction or may be set In different directions, the lead ends may be disposed in two different directions of the electrode lines; the electrode line lead ends refer to the end points of the electrode lines extending from the touch area to the touch area and at the boundary of the touch area. The touch circuit has a touch excitation source and a touch signal detection circuit; each electrode line of the row electrode group and the column electrode group is connected to the touch circuit, and the touch excitation source pairs the two groups of electrodes during the working period of the touch circuit A touch excitation signal is simultaneously applied to more than two electrode lines in the same group, and the touch signal detection circuit detects the touch signals on each electrode line simultaneously or in time to detect whether each electrode line is touched.
行电极组和列电极组中的一者或两者上有多个可能触控定位点时， 触控电路通过 比较多个可能触控定位点所在的行或列电极线上触控信号的时间特征或幅值特征， 来 确定多个可能触控定位点中的真实触控定位点； 所述触控定位点是指， 触控物触摸或 触压触控屏时， 在触控屏触碰范围内的一个代表性位置坐标点； 所述可能触控定位点 是指， 所在的行列电极线上的触控信号都满足触控定位条件的触控定位点； 所述真实 触控定位点是指， 所检测到的多个可能触控定位点中具有真实触控物的触控定位点。 When there are multiple possible touch positioning points on one or both of the row electrode group and the column electrode group, the touch circuit compares the time of the touch signals on the row or column electrode lines where the plurality of possible touch positioning points are located. a feature or amplitude feature to determine a real touch location point among a plurality of possible touch location points; the touch location point is a touch object touch or When the touch screen is touched, a representative position coordinate point in the touch screen touch range; the possible touch positioning point means that the touch signals on the row and column electrode lines satisfy the touch positioning condition The touch-pointing point is the touch-pointing point of the plurality of possible touch-pointing points that have a real touch object.
通过一条触控电极线上触控信号大小与预设的信号阈值比较， 或通过触控电极线 上触控信号大小超过信号阈值的相邻触控电极线数与预设的数量阈值比较， 来判断真 实触控定位点上的触碰力度， 根据触碰力度实施触摸或触压的功能性操作。  Comparing the size of the touch signal on a touch electrode line with a preset signal threshold, or comparing the number of adjacent touch electrode lines whose touch signal size exceeds the signal threshold on the touch electrode line is compared with a preset number threshold. Determine the touch force on the real touch positioning point, and perform the functional operation of touch or touch according to the touch force.
本发明的技术问题通过以下的技术方案进一步予以解决：  The technical problem of the present invention is further solved by the following technical solutions:
根据本发明的另一个具体方面， 所述触控屏是数字电容式触控屏或显示器式触控 屏。  According to another specific aspect of the present invention, the touch screen is a digital capacitive touch screen or a display type touch screen.
根据本发明的另一个具体方面， 所述通过比较多个可能触控定位点所在的行或列 触控电极线上的触控信号的时间特征， 来确定可能触控定位点中的真实触控定位点， 是通过比较多个可能触控定位点所在行或列触控电极线上触控信号产生的时间顺序， 来确定多个可能触控定位点中的真实触控定位点， 并对真实触控定位点上的触控实施 功能性操作。  According to another specific aspect of the present invention, the time feature of the touch signal on the row or column touch electrode line where the plurality of possible touch positioning points are located is compared to determine the real touch in the possible touch positioning point. The positioning point is to determine the real touch positioning point among the plurality of possible touch positioning points by comparing the time sequence generated by the touch signals on the row or column touch electrode lines of the plurality of possible touch positioning points, and to determine the real touch positioning points among the plurality of possible touch positioning points. The touch on the touch location point performs a functional operation.
根据本发明的另一个具体方面， 所述通过比较多个可能触控定位点所在的行或列 触控电极线上的触控信号产生的时间顺序， 来确定多个可能触控定位点中的真实触控 定位点， 是以新增的可能触控定位点的行电极线和新增的可能触控定位点的列电极线 的交叉点为新增真实触控定位点； 或是以已具有可能触控定位点的行电极线和新增的 可能触控定位点的列电极线的交叉点为新增真实触控定位点； 或是以新增的可能触控 定位点的行电极线和已具有可能触控定位点的列电极线的交叉点为新增真实触控定位 点。  According to another specific aspect of the present invention, the time sequence generated by comparing the touch signals on the row or column touch electrode lines where the plurality of possible touch positioning points are located is used to determine the plurality of possible touch positioning points. The real touch positioning point is the intersection of the row electrode line of the newly added touch positioning point and the column electrode line of the newly added touch positioning point, and the new real touch positioning point is added; The intersection of the row electrode line of the touch positioning point and the column electrode line of the newly added touch positioning point may be a new real touch positioning point; or the row electrode line of the newly added touch positioning point and The intersection of the column electrode lines that have the possible touch positioning points is a new real touch positioning point.
根据本发明的另一个具体方面， 所述通过比较多个可能触控定位点所在的行或列 触控电极线上的触控信号的幅值特征， 来确定多个可能触控定位点中的真实触控定位 点， 是通过比较不同行或不同列触控电极线上触控信号的大小， 或通过比较同一行或 同一列电极线上不同引出端上触控信号的大小， 或通过拟合一条触控电极线上触控信 号的大小， 来判断多个可能触控定位点中的真实触控定位点， 并对真实触控定位点上 的触控实施功能性操作。  According to another specific aspect of the present invention, the plurality of possible touch positioning points are determined by comparing amplitude characteristics of touch signals on the row or column touch electrode lines where the plurality of possible touch positioning points are located. The real touch positioning point is to compare the size of the touch signal on the touch electrode line of different rows or different columns, or by comparing the size of the touch signal on different lead ends of the same row or the same column electrode line, or by fitting The size of the touch signal on the touch electrode line determines the actual touch positioning point among the plurality of possible touch positioning points, and performs functional operation on the touch on the real touch positioning point.
根据本发明的另一个具体方面， 所述通过比较不同行或不同列触控电极线上触控 信号的大小， 来判断多个可能触控定位点中的真实触控定位点， 是指在互不相交的同 组电极线上， 具有同向引出端的触控电极线间， 通过比较不同触控电极线上触控信号 的大小， 来判断真实触控点在触控电极线上的位置； 触控信号大的触控电极线的触控 点， 较触控信号小的触控电极线的触控点， 更靠近触控电极线的引出端。 According to another specific aspect of the present invention, the comparing the size of the touch signal on the touch electrode line of different rows or different columns to determine the real touch positioning point among the plurality of possible touch positioning points refers to mutual Judging the position of the real touch point on the touch electrode line by comparing the size of the touch signal on different touch electrodes on the same set of electrode lines on the same set of electrode lines; Touch of a touch electrode line with a large control signal The touch point of the touch electrode line that is smaller than the touch signal is closer to the lead end of the touch electrode line.
根据本发明的另一个具体方面， 所述通过比较不同行或不同列触控电极线上触控 信号的大小， 来判断多个可能触控定位点中的真实触控定位点， 是指在互不相交的同 组电极线上， 具有不同向引出端的相邻触控电极线间， 比较相邻触控电极线上不同向 引出端触控信号的大小， 来判断真实触控点在触控电极线上的位置； 触控点更靠近触 控信号较大的触控电极线的引出端。  According to another specific aspect of the present invention, the comparing the size of the touch signal on the touch electrode line of different rows or different columns to determine the real touch positioning point among the plurality of possible touch positioning points refers to mutual Comparing the size of the touch signals of the different touch terminals on the adjacent touch electrodes on the same set of electrode lines on the same set of electrode lines to determine the true touch point at the touch electrode The position of the line; the touch point is closer to the leading end of the touch electrode line with a larger touch signal.
根据本发明的另一个具体方面， 所述通过比较同一行或同一列触控电极线上触控 信号的大小， 来判断多个可能触控定位点中的真实触控定位点， 是指对于两端都具有 引出端的触控电极线， 比较触控电极线上不同引出端触控信号的大小， 来判断真实触 控点在触控电极线上的位置； 触控点更靠近触控电极线上触控信号较大的引出端。  According to another specific aspect of the present invention, the comparing the size of the touch signal on the same row or the same column of the touch electrode line to determine the real touch positioning point among the plurality of possible touch positioning points refers to The touch electrodes are connected to the touch electrodes, and the touch signals on different touch terminals on the touch electrode line are compared to determine the position of the real touch points on the touch electrode lines; the touch points are closer to the touch electrode lines. The larger end of the touch signal.
根据本发明的另一个具体方面， 所述通过拟合一条触控电极线上触控信号的大小， 来判断多个可能触控定位点中的真实触控定位点， 是指以触控信号超过信号阈值的触 控电极线与该触控电极线的交叉点为可能触控定位点， 通过所有可能触控定位点的不 同组合， 来拟合该触控电极线触控信号的大小， 再与该触控电极线实际测量到的触控 信号大小比较， 来判断该触控电极线上的一个或多个真实触控定位点。  According to another specific aspect of the present invention, determining the actual touch positioning point among the plurality of possible touch positioning points by fitting the size of the touch signal on one touch electrode line means that the touch signal exceeds The intersection of the touch threshold electrode line and the touch electrode line is a possible touch positioning point, and the touch signal line touch signal is matched by different combinations of all possible touch positioning points, and then The size of the touch signal actually measured by the touch electrode line is compared to determine one or more real touch positioning points on the touch electrode line.
根据本发明的另一个具体方面， 所述对真实触控定位点上的触控实施功能性操作， 包括对一个真实触控定位点在预设时间范围内的触碰和移动的响应， 所述响应是执行 "选择"或 "拖动"或 "书写"功能的操作。  According to another specific aspect of the present invention, the performing a functional operation on the touch on the real touch positioning point includes: responding to the touch and movement of a real touch positioning point within a preset time range, The response is an action that performs a "select" or "drag" or "write" function.
根据本发明的另一个具体方面， 所述对真实触控定位点上的触控实施功能性操作， 包括对多个真实触控定位点在预设时间范围内的相对移动的响应，所述响应是执行"选 择"或 "拖动"或 "书写"或 "放大"或 "縮小"或 "旋转"功能的操作。  According to another specific aspect of the present invention, the performing a functional operation on the touch on the real touch positioning point includes a response to a relative movement of the plurality of real touch positioning points within a preset time range, the response Is the operation of performing a "select" or "drag" or "write" or "zoom in" or "zoom out" or "rotate" function.
根据本发明的另一个具体方面， 所述触控屏对于各触控电极线设置两个信号阈值， 第一信号阈值小于第二信号阈值； 当触控电极线上触控信号超过第一信号阈值又小于 第二信号阈值时， 触控屏以触控信号超过第一信号阈值又小于第二信号阈值的触控电 极线为被摸电极线， 将行被摸电极线和列被摸电极线的交叉点定位为触摸点； 当被触 的触控电极线上触控信号再超过第二信号阈值时， 触控屏以触控信号超过第二信号阈 值的触控电极线为被压电极线， 以行被压电极线和列被压电极线的交叉点定位为触压 点。  According to another specific aspect of the present invention, the touch screen sets two signal thresholds for each touch electrode line, and the first signal threshold is smaller than the second signal threshold; when the touch signal on the touch electrode line exceeds the first signal threshold When the threshold is smaller than the second signal threshold, the touch screen uses the touch electrode line whose touch signal exceeds the first signal threshold and is smaller than the second signal threshold as the touched electrode line, and the touched electrode line and the column touched electrode line are The intersection is positioned as a touch point; when the touch signal on the touched touch electrode line exceeds the second signal threshold, the touch screen uses the touch electrode line whose touch signal exceeds the second signal threshold as the pressed electrode line The intersection of the row-pressed electrode line and the column-pressed electrode line is positioned as a contact point.
根据本发明的另一个具体方面， 所述触控屏对于各触控电极线设置一个信号阈值， 并设置触控信号超过信号阈值的相邻触控电极线数的数量阈值； 所设置的数量阈值可 以是一个也可以是多个， 数量阈值可以分别是触摸数量阈值、 触压数量阈值和持握数 量阈值， 持握数量阈值大于触压数量阈值， 触压数量阈值大于等于触摸数量阈值。 根据本发明的另一个具体方面， 当触控基板上触控信号超过信号阈值的相邻触控 电极线数多于触摸数量阈值少于触压数量阈值时， 触控屏以触控信号超过信号阈值的 触控电极线为被摸电极线， 将行被摸电极线和列被摸电极线的交叉点定位为触摸点； 当触控信号超过信号阈值的相邻触控电极线数多于触压数量阈值少于持握数量阈值 时， 触控屏以触控信号超过信号阈值的触控电极线为被压电极线， 将行被压电极线和 列被压电极线的交叉点定位为触压点； 当触控信号超过信号阈值的相邻触控电极线数 多于持握数量阈值时， 触控屏以触控信号超过信号阈值的触控电极线为被持电极线， 将行被持电极线和列被持电极线的交叉点定位为持握点。 According to another specific aspect of the present invention, the touch screen sets a signal threshold for each touch electrode line, and sets a threshold value of the number of adjacent touch electrode lines whose touch signal exceeds the signal threshold; the set number threshold It can be one or more, and the number threshold can be the touch quantity threshold, the touch quantity threshold, and the holding number, respectively. The threshold value, the grip quantity threshold is greater than the touch quantity threshold, and the touch quantity threshold is greater than or equal to the touch quantity threshold. According to another specific aspect of the present invention, when the number of adjacent touch electrode lines on the touch substrate exceeds the signal threshold is greater than the threshold number of touches, the touch screen exceeds the signal by the touch signal. The threshold touch electrode line is the touched electrode line, and the intersection of the line touched electrode line and the column touched electrode line is positioned as a touch point; when the touch signal exceeds the signal threshold, the number of adjacent touch electrode lines is more than the touch When the threshold of the number of pressures is less than the threshold of the number of holdings, the touch screen uses the touch electrode line whose touch signal exceeds the signal threshold as the pressed electrode line, and the intersection of the row of pressed electrode lines and the column of pressed electrodes Positioning as a touch point; when the number of adjacent touch electrodes exceeding the signal threshold exceeds the threshold value of the touch threshold, the touch screen uses the touch electrode line whose touch signal exceeds the signal threshold as the held electrode line. The intersection of the row held electrode line and the column held electrode line is positioned as a holding point.
根据本发明的另一个具体方面， 所述触控屏对定位出的触摸点实施触摸提示性操 作； 所述触控屏对定位出的触压点实施触压提示性或功能性操作， 所述触控屏对定位 出的持握点不实施操作。  According to another specific aspect of the present invention, the touch screen performs a touch prompt operation on the located touch point; the touch screen performs a touch prompt function or a functional operation on the located touch point, The touch screen does not operate on the positioned grip point.
根据本发明的另一个具体方面， 所述触控屏对定位出的触摸点所实施的触摸提示 性操作， 是让显示画面或显示画面的局部在被触摸后较被触摸前发生改变； 所述触控 屏对定位出的触压点所实施的触压提示性操作， 是让显示画面或显示画面的局部在被 触压后较被触摸前发生改变， 或是让显示画面或显示画面的局部在被触压后较被触摸 后、 被触压前发生改变。  According to another specific aspect of the present invention, the touch prompting operation performed by the touch screen on the positioned touch point is such that a part of the display screen or the display screen is changed before being touched; The touch-pressing operation performed by the touch screen on the positioned touch pressure point is to change the part of the display screen or the display screen before being touched, or to make the display screen or the display screen partially touched. After being touched, it is changed after being touched and before being touched.
根据本发明的另一个具体方面， 所述触控系统对定位出的触压点所实施的触压功 能性操作， 包括有对一个真实触控定位点在预设时间范围内的触压和移动的响应， 所 述响应是执行 "选择"或 "拖动"或 "书写"或 "放大"或 "縮小"或 "旋转"功能 的操作。  According to another specific aspect of the present invention, the touch function operation performed by the touch system on the positioned touch point includes the touch and movement of a real touch positioning point within a preset time range. In response, the response is an operation that performs a "select" or "drag" or "write" or "zoom in" or "zoom out" or "rotate" function.
根据本发明的另一个具体方面， 所述触控屏对触压点在执行 "书写 "操作时， "书 写"笔画的粗细是随触控信号的大小而改变， 或是随触控信号超过信号阈值的相邻触 控电极线数量的多少而改变； 触控信号愈大或超过信号阈值的相邻触控电极线数量愈 多， "书写"笔画愈粗。  According to another specific aspect of the present invention, when the touch screen performs a "writing" operation on the touch point, the thickness of the "writing" stroke changes according to the size of the touch signal, or exceeds the signal with the touch signal. The threshold number of adjacent touch electrode lines changes; the larger the touch signal is, or the more the number of adjacent touch electrode lines exceeds the signal threshold, the thicker the "writing" stroke is.
根据本发明的另一个具体方面， 所述触控屏通过比较多个可能触控定位点所在不 同行或不同列电极线之间触控信号的变化量或变化率， 来确定具有可能性触控定位点 所在电极线上的真实触控定位点。  According to another specific aspect of the present invention, the touch screen determines the possibility of touch by comparing the change amount or the change rate of the touch signal between different rows or different column electrode lines of the plurality of possible touch positioning points. The actual touch positioning point on the electrode line where the positioning point is located.
根据本发明的另一个具体方面， 所述触控屏当触控物在触控屏上每一个触碰范围 内， 有多个电极线交叉点满足有效触控定位条件时， 是以其中的一个电极线交叉点为 触控定位点； 特别是以满足有效触控定位条件的多个电极线交叉点中的中心电极线交 叉点为触控定位点； 也可以是以非电极线交叉点的位置为触控定位点。 本发明与现有技术对比的有益效果是： According to another specific aspect of the present invention, when the touch object has a plurality of electrode line intersection points in each touch range of the touch screen to satisfy an effective touch positioning condition, one of the touch screens is one of the touch screens. The intersection of the electrode lines is a touch positioning point; in particular, the center electrode line intersection among a plurality of electrode line intersections satisfying effective touch positioning conditions The cross point is the touch positioning point; or the position of the non-electrode line intersection point may be the touch positioning point. The beneficial effects of the present invention compared to the prior art are:
本发明所揭示的技术方案， 通过触控电极线上触控信号的时间特征或幅值特征， 特别是通过比较触控电极线上触控信号的大小， 排除多个可能触控定位点中的多点触 控时的 "鬼点"， 来确定多点触控中的真实触控定位点， 使多点触控成为可能。  According to the technical solution disclosed in the present invention, the time characteristic or the amplitude characteristic of the touch signal on the touch electrode line, in particular, the size of the touch signal on the touch electrode line is compared, and the plurality of possible touch positioning points are excluded. Multi-touch "ghost point" to determine the real touch positioning point in multi-touch, making multi-touch possible.
本发明所揭示的技术方案， 还提出了判断触碰力度的方案， 根据触碰力度将触控 分为 "触摸"和 "触压"， 并实施不同的触控操作， 达到不同的触控效果。 附图说明  According to the technical solution disclosed by the present invention, a solution for judging the touch strength is also proposed, and the touch is divided into "touch" and "touch" according to the touch force, and different touch operations are implemented to achieve different touch effects. . DRAWINGS
图 1是本发明具体实施方式一和方式二的电气连接和结构示意图；  1 is a schematic diagram of electrical connections and structures of a first embodiment and a second embodiment of the present invention;
图 2是本发明具体实施方式三的电气连接和结构示意图；  2 is a schematic diagram of electrical connections and structures according to a third embodiment of the present invention;
图 3是本发明具体实施方式四的电气连接和结构示意图；  3 is a schematic diagram of electrical connections and structures of a fourth embodiment of the present invention;
图 4a是本发明具体实施方式五的电气连接和结构示意图；  4a is a schematic diagram of electrical connections and structures of a fifth embodiment of the present invention;
图 4b是本发明具体实施方式五的触控行电极时的等效电路图；  4b is an equivalent circuit diagram of the touch row electrode according to Embodiment 5 of the present invention;
图 5是本发明具体实施方式六的触控信号波形图；  5 is a waveform diagram of a touch signal according to Embodiment 6 of the present invention;
图 6是本发明具体实施方式八的电气连接和结构示意图；  Figure 6 is a schematic view showing the electrical connection and structure of a eighth embodiment of the present invention;
图 7是本发明具体实施方式九的电气连接和结构示意图。 具体实施方式  Figure 7 is a schematic view showing the electrical connection and structure of a ninth embodiment of the present invention. detailed description
具体实施方式一 Specific embodiment 1
如图 1所示的触控屏 100具有基板 110和触控电路 120，基板 110上设置有两组分 别有 m条行电极线的行电极组 111和有 n条列电极线的列电极组 112，其中 m和 n是大 于 2 的自然数； 行列两组间电极线相互交叉， 同组内各条电极线互不相交； 组内各条 电极线的引出端设置在相同方向， 所述的电极线引出端， 是指电极线从触控区域延伸 向触控区域外， 在触控区域边界上的端点； 触控电路 120具有触控激励源 130、行触控 信号检测电路 140和列触控信号检测电路 150;行电极组 111和列电极组 112的各条电 极线分别连接行触控信号检测电路 140和列触控信号检测电路 150;在触控电路工作的 时段中， 触控激励源对两组电极线或对同组内多于两条电极线同时施加有触控激励信 号， 触控信号检测电路同时或分时检测各电极线上的触控信号， 来探测各电极线是否 被触碰。 本具体实施方式是为了判断多点触控， 信号处理的方案是根据可能触控定位点的 时间特征， 来判断真实触控点所在触控电极线的位置。 The touch screen 100 shown in FIG. 1 has a substrate 110 and a touch circuit 120. The substrate 110 is provided with two sets of row electrode groups 111 each having m row electrode lines and a column electrode group 112 having n column electrode lines. Where m and n are natural numbers greater than 2; the electrode lines of the two rows intersect with each other, and the electrode lines of the same group do not intersect each other; the lead ends of the respective electrode lines in the group are disposed in the same direction, the electrode lines The terminal is an end point of the electrode line extending from the touch area to the touch area, and the touch circuit 120 has a touch excitation source 130, a line touch signal detecting circuit 140, and a column touch signal. The detecting circuit 150; the electrode lines of the row electrode group 111 and the column electrode group 112 are respectively connected to the row touch signal detecting circuit 140 and the column touch signal detecting circuit 150; during the working period of the touch circuit, the touch excitation source pair The two sets of electrode lines or more than two electrode lines in the same group simultaneously apply a touch excitation signal, and the touch signal detection circuit simultaneously or time-divisionally detects the touch signals on each electrode line to detect whether each electrode line is touched. bump. The specific implementation manner is to determine multi-touch. The signal processing solution determines the position of the touch electrode line where the real touch point is located according to the time feature of the touch control point.
操作者先是触碰到第 i行和第 f列的交叉点（i， f)附近， 行触控信号检测电路 140 在行电极线组 111中的第 i行电极线上， 列触控信号检测电路 150在列电极线组 112 中的第 f 列电极线上， 分别检测到满足有效触控条件的触控信号； 由于只有一个触点 没有 "鬼点"， 触控电路 120得出在交叉点（i，f)上的真实触控定位点的判断。 然后， 操作者又再触碰到第 j行和第 e列的交叉点（j， e)附近， 行触控信号检测电路 140在行 电极线组 111中的第 i行和第 j行电极线上， 列触控信号检测电路 150在列电极线组 112中的第 e列和第 f行电极线上， 都分别检测到满足有效触控条件的触控信号； 虽然 当行电极线 i、 j和列电极线 e、 f 都成为可能的触控电极线， 就会增加三个可能触控 定位点 （i，e )、 （j，e)、 ( j, f ); 根据可能触控定位点产生的时间顺序， 在已有的真实 触控定位点（i， f)相应的触控电极线是第 i行电极线和第 f列电极线之后， 又产生了具 有触控信号的第 j行电极线和第 e列电极线， 触控电路 120可以判断交叉点（j， e)是新 增的真实触控定位点， 另两个可能触控定位点 （i，e)、 ( j, f ) 只是 "鬼点"。  The operator first touches the intersection of the i-th row and the f-th column (i, f), and the touch signal detecting circuit 140 performs the touch signal detection on the i-th row electrode line in the row electrode group 111. The circuit 150 detects the touch signal satisfying the effective touch condition on the f-th column electrode line in the column electrode group 112; since only one contact has no "ghost point", the touch circuit 120 obtains the intersection point. The judgment of the real touch positioning point on (i, f). Then, the operator touches again the vicinity of the intersection (j, e) of the jth row and the eth column, and the i-th row and the j-th row electrode line of the touch signal detecting circuit 140 in the row electrode line group 111. The upper touch signal detecting circuit 150 detects the touch signals satisfying the effective touch conditions on the e-th column and the f-th row electrode lines in the column electrode group 112; although the row electrode lines i, j and The column electrode lines e and f are all possible touch electrode lines, and three possible touch positioning points (i, e), (j, e), (j, f) are added; The chronological order, after the corresponding touch electrode lines of the existing real touch positioning points (i, f) are the i-th row electrode lines and the f-th column electrode lines, the j-th row electrode with the touch signal is generated. The line and the e-column electrode line, the touch circuit 120 can judge that the intersection point (j, e) is a new real touch positioning point, and the other two possible touch positioning points (i, e), (j, f) It’s just a "ghost point."
触控屏对检测到的真实触控定位点（i， f)和（j， e)， 可以进行 "提示性操作"或 "功 能性操作"； 所述 "提示性操作"是让显示画面或显示画面的局部在被触后较被触前发 生改变， 或 "拖动"或 "放大"或 "縮小"或 "旋转"功能的操作； 所述功能性操作 是执行 "选择"或 "拖动"或 "书写"或 "放大"或 "縮小"或 "旋转"功能的操作； 所述 "选择"操作， 是在触控屏检测到真实触控定位点时， 显示画面进入到下一个显 示状态； 所述 "拖动"操作， 是在真实触控定位点在屏幕上移动时， 显示画面或显示 画面的局部跟随触点移动； 所述 "放大"操作， 是在两个真实触控定位点相互远离时， 显示画面或显示画面的局部被放大； 所述 "縮小"操作， 是在两个真实触控定位点相 互靠近时， 显示画面或显示画面的局部被縮小； 所述 "旋转"操作， 是在两个真实触 控定位点相对转动时， 显示画面或显示画面的局部被旋转； 所述 "书写"操作， 是在 真实触控定位点在屏幕上移动时， 显示画面上产生一条跟随触点移动的笔迹； 作 "书 写"操作时， 还可依多条触控电极线上的触控信号的大小进行插值运算， 定位出触控 电极线间的笔迹位置。 具体实施方式二  The touch screen can perform "prompt operation" or "functional operation" on the detected real touch positioning points (i, f) and (j, e); the "instructive operation" is to make the display or The part of the display screen is changed after being touched, or the operation of "dragging" or "zooming in" or "zooming out" or "rotating" functions; the functional operation is to perform "select" or "drag" "Or" the operation of "writing" or "zooming in" or "zooming out" or "rotating" functions; the "selecting" operation is when the touch screen detects a real touch positioning point, the display screen enters the next display state. The "drag" operation is a partial follow contact movement of the display screen or the display screen when the real touch positioning point moves on the screen; the "zoom in" operation is at two real touch positioning points When moving away from each other, a part of the display screen or the display screen is enlarged; the "reduction" operation is when the two real touch positioning points are close to each other, the display screen or a part of the display screen is reduced; the "rotation" operation , is relative to two real touch positioning points When moving, the display screen or a part of the display screen is rotated; the "writing" operation is to generate a handwriting following the contact movement when the real touch positioning point moves on the screen; The interpolation operation may be performed according to the size of the touch signals on the plurality of touch electrode lines to locate the position of the handwriting between the touch electrode lines. Specific embodiment 2
如图 1所示的触控屏 100， 触控屏的结构和电气连接都与实施方式一相同。  As shown in FIG. 1, the structure and electrical connection of the touch screen 100 are the same as those of the first embodiment.
本具体实施方式是为了判断多点触控， 信号处理方案是在具有同向引出端互不相 交的同组触控电极线间， 通过比较不同触控电极线上触控信号的大小， 来判断真实触 控点所在触控电极线的位置。 The specific implementation manner is to judge multi-touch, and the signal processing scheme is incompatible with the same-direction terminal. The position of the touch electrode line where the real touch point is located is determined by comparing the size of the touch signal on the different touch electrode lines between the touch electrodes of the same group.
操作者同时触碰到第 i行和第 f列的交叉点（i， f)附近和第 j行和第 e列的交叉点 (j, e)附近，行触控信号检测电路 140在行电极线组 111中的第 i行和第 j行电极线上， 列触控信号检测电路 150在列电极线组 112中的第 e列和第 f行电极线上， 都分别检 测到满足有效触控条件的触控信号； 具有触控信号的行电极线 i、 j 和列电极线 e、 f 就是可能触控定位点所对应的触控电极线， 可能触控定位点就有四个， 分别是 （i，e)、 ( i，f)、 （j，e)、 （j，f)。 虽然行电极线 i、 j上的触控信号都满足有效触控的条件， 但 行电极线 i和行电极线 j上触控信号的大小是不同的， 触控信号检测电路 120比较得 出行电极线 j上的触控信号比行电极线 i上的触控信号的幅值大， 在行电极线 j上的 真实触控定位点就比行电极线 i 上的真实触控定位点更靠近行电极线的引出端， 在四 个可能触控定位点（i，e)、 (i，f)、 (j，e)、 (j，f)中， 靠近行电极线引出端的可能触控 定位点（j，e)是行电极线 j上的真实触控定位点， 远离行电极线引出端的可能触控定位 点（i，f)是行电极线 i上的真实触控定位点， 另两个可能触控定位点（i，e)、 （j，f)就只 是 "鬼点"； 同样， 触控信号检测电路 120比较得出列电极线 e上的触控信号比列电极 线 f 上的触控信号的幅值大， 在列电极线 e上的真实触控定位点就比列电极线 f 上的 真实触控定位点更靠近列电极线的引出端， 在四个可能触控定位点（i，e)、 （i，f)、 (j，e)、 （j，f)中， 靠近列电极线引出端的可能触控定位点（j，e)是列电极线 e上的真实 触控定位点， 远离列电极线引出端的可能触控定位点（i， f)是列电极线 f上的真实触控 定位点， 再次确认另两个可能触控定位点（i，e)、 （j，f)只是 "鬼点"。  The operator simultaneously touches the vicinity of the intersection (i, f) of the i-th row and the f-th column and the intersection (j, e) of the j-th row and the e-th column, and the row touch signal detecting circuit 140 is at the row electrode In the i-th row and the j-th row electrode line of the line group 111, the column touch signal detecting circuit 150 detects that the effective touch is satisfied on the e-th column and the f-th row electrode line in the column electrode group 112, respectively. The touch signal of the condition; the row electrode line i, j and the column electrode line e, f having the touch signal are the touch electrode lines corresponding to the touch touch point, and there may be four touch point points, respectively (i, e), (i, f), (j, e), (j, f). Although the touch signals on the row electrode lines i and j satisfy the condition of effective touch, the sizes of the touch signals on the row electrode lines i and the row electrode lines j are different, and the touch signal detecting circuit 120 compares the row electrodes. The touch signal on the line j is larger than the amplitude of the touch signal on the row electrode line i, and the real touch positioning point on the row electrode line j is closer to the true touch positioning point on the row electrode line i. The leading end of the electrode line, in the four possible touch positioning points (i, e), (i, f), (j, e), (j, f), the possible touch positioning points near the leading end of the row electrode line (j, e) is the real touch positioning point on the row electrode line j, and the possible touch positioning points (i, f) far from the leading end of the row electrode line are the real touch positioning points on the row electrode line i, and the other two The touch sensing points (i, e) and (j, f) are just "ghost points". Similarly, the touch signal detecting circuit 120 compares the touch signals on the column electrode lines e with respect to the column electrode lines f. The amplitude of the touch signal is large, and the real touch positioning point on the column electrode line e is more than the real touch on the column electrode line f The bit is closer to the leading end of the column electrode line, and in the four possible touch positioning points (i, e), (i, f), (j, e), (j, f), close to the column electrode line leading end The touch positioning point (j, e) may be a real touch positioning point on the column electrode line e, and the possible touch positioning point (i, f) far from the column electrode line leading end is the real touch positioning on the column electrode line f. Point, again confirm that the other two possible touch positioning points (i, e), (j, f) are just "ghost points".
这样， 我们就可以通过比较多个可能触控定位点所在不同行或不同列电极线之间 触控信号的大小， 来确定真实触控定位点在电极线上的位置， 触控信号大的触控电极 线的触控点， 较触控信号小的触控电极线的触控点， 更靠近触控电极线的引出端。 具体实施方式三  In this way, we can determine the position of the real touch positioning point on the electrode line by comparing the size of the touch signal between different rows or different column electrode lines of the plurality of possible touch positioning points, and the touch signal has large touch. The touch point of the control electrode line is closer to the touch end of the touch electrode line than the touch point of the touch electrode line with a smaller touch signal. Embodiment 3
如图 2所示的触控屏 200具有基板 210和触控电路 220，基板 210上设置有两组分 别有 m条行电极线的行电极组 211和有 n条列电极线的列电极组 212，其中 m和 n是大 于 2 的自然数； 行列两组间电极线相互交叉， 同组内各条电极线互不相交； 行电极组 211组内各条相邻电极线的引出端设置在不同方向，列电极组 212组内各条电极线的引 出端设置在相同方向， 所述的电极线引出端， 是指电极线从触控区域延伸向触控区域 夕卜， 在触控区域边界上的端点； 触控电路 220具有触控激励源 230、行触控信号检测电 路 241和 241、 列触控信号检测电路 250; 行电极组 211和列电极组 212的各条电极线 分别连接行触控信号检测电路 241、 241和列触控信号检测电路 250; 在触控电路工作 的时段中， 触控激励源对两组电极线或对同组内多于两条电极线同时施加有触控激励 信号， 触控信号检测电路同时或分时检测各电极线上的触控信号， 来探测各电极是否 被触碰。 The touch screen 200 shown in FIG. 2 has a substrate 210 and a touch circuit 220. The substrate 210 is provided with two sets of row electrode groups 211 each having m row electrode lines and a column electrode group 212 having n column electrode lines. Where m and n are natural numbers greater than 2; the electrode lines of the two rows intersect with each other, and the electrode lines of the same group do not intersect each other; the leading ends of the adjacent electrode lines of the row electrode group 211 are disposed in different directions The lead ends of the electrode lines in the column electrode group 212 are disposed in the same direction, and the electrode line leading end refers to the electrode line extending from the touch area to the touch area, on the boundary of the touch area. The touch circuit 220 has a touch excitation source 230 and a touch signal detection circuit. The road electrodes 241 and 241, the column touch signal detecting circuit 250; the row electrode group 211 and the column electrode group 212 are respectively connected to the row touch signal detecting circuit 241, 241 and the column touch signal detecting circuit 250; During the working period of the circuit, the touch excitation source simultaneously applies a touch excitation signal to two sets of electrode lines or more than two electrode lines in the same group, and the touch signal detection circuit detects the touch on each electrode line simultaneously or time-divisionally. Control signals to detect if each electrode is touched.
本具体实施方式是为了判断多点触控， 信号处理方案是在同组电极线内具有不同 向引出端的相邻触控电极线间， 通过比较相邻触控电极线上触控信号的大小， 来判断 真实触控点所在触控电极线的位置。  The specific implementation manner is to determine multi-touch, and the signal processing scheme is between adjacent touch electrode lines having different leading ends in the same group of electrode lines, and comparing the size of the touch signals on the adjacent touch electrode lines, To determine the position of the touch electrode line where the real touch point is located.
操作者同时触碰到第 i行和第 f列的交叉点（i， f)附近和第 j行和第 e列的交叉点 (j, e)附近， 当触控屏 210上的行电极组 211和列电极组 212足够细密时， 行触控信号 检测电路 241、 242在行电极线组 211 中的多个行电极线 i_l、 i、 i+l、 j_l、 j、 j+1 上都检测到满足有效触控条件的触控信号，列触控信号检测电路 250在列电极线组 212 中的两个列电极线 e、 f上都检测到满足有效触控条件的触控信号； 具有触控信号的行 电极线 i_l、 i、 i+l、 j_l、 j、 j+1和列电极线 e、 f 就是可能触控定位点所对应的触 控电极线； 由于触控定位点是指触控物在触控屏触碰范围内的一个代表性位置坐标点， 所以可能触控定位点就有四个， 分别是 （i，e )、 （i，f )、 （j，e )、 （j，f)。 虽然行电极线 i-l、 i、 i+l、 j_l、 j、 j+1上的触控信号都满足有效触控的条件， 但各电极线上触控 信号的大小是不同的； 触控信号检测电路 220比较相邻行电极线 i_l、 i、 i+1上触控 信号的大小， 得出行电极线 i_l、 i+1上的触控信号较行电极线 i上的触控信号的幅值 大， 在行电极线 i上的真实触控定位点更靠近行电极线 i-1和 i+1的引出端， 在四个 可能触控定位点（i，e)、 (i，f)、 (j，e)、 (j，f)中， 靠近行电极线 i-1和 i+1引出端的 可能触控定位点（i， f)就是行电极线 i上的真实触控定位点， 远离行电极线 i-1和 i+1 弓 I出端的可能触控定位点（i，e)就是 "鬼点"； 同样， 触控信号检测电路 220 比较相邻 行电极线 j_l、 j、 j+1上触控信号的大小， 得出行电极线 j上的触控信号较行电极线 j_l、 j+1上的触控信号的幅值大， 在行电极线 j上的真实触控定位点更靠近行电极线 j的引出端， 在四个可能触控定位点（i，e)、 (i，f)、 (j，e)、 (j，f)中， 靠近行电极线 j 引出端的可能触控定位点（j， e)就是行电极线 j上的真实触控定位点， 远离行电极线 j 引出端的可能触控定位点（j，f)就是 "鬼点"； 为了保险起见， 可以从列方向再对 "触 点"和 "鬼点"作一次判断， 触控信号检测电路 220比较列电极线 e和 f 上触控信号 的大小， 得出列电极线 e上的触控信号较列电极线 f 上的触控信号的幅值大， 在列电 极线 e上的真实触控定位点就比列电极线 f 上的真实触控定位点更靠近列电极线的引 出端， 再一次得出， 在四个可能触控定位点（i，e)、 （i，f)、 （j，e)、 （j，f)中， 靠近列 电极线引出端的可能触控定位点（j， e)是列电极线 e上的真实触控定位点， 远离列电极 线引出端的可能触控定位点（i， f)是列电极线 f上的真实触控定位点， 另两个可能触控 定位点（i， e)、 （j， f)就只是 "鬼点"。 The operator simultaneously touches the intersection of the i-th row and the f-th column (i, f) and the intersection of the j-th row and the e-th column (j, e), when the row electrode group on the touch screen 210 When the 211 and the column electrode group 212 are sufficiently fine, the touch signal detecting circuits 241 and 242 detect the plurality of row electrode lines i_l, i, i+l, j_l, j, j+1 in the row electrode line group 211. The touch signal detecting circuit 250 detects the touch signal satisfying the effective touch condition on the two column electrode lines e and f in the column electrode group 212; The row electrode lines i_l, i, i+l, j_l, j, j+1 and the column electrode lines e, f of the control signal are the touch electrode lines corresponding to the touch sensing points; The control object is at a representative position coordinate point within the touch screen touch range, so there may be four touch positioning points, namely (i, e), (i, f), (j, e), ( j, f). Although the touch signals on the row electrode lines il, i, i+l, j_l, j, j+1 satisfy the conditions of effective touch, the size of the touch signals on the electrode lines is different; touch signal detection The circuit 220 compares the sizes of the touch signals on the adjacent row electrode lines i_l, i, i+1, and obtains that the touch signals on the row electrode lines i_l, i+1 have larger amplitudes than the touch signals on the row electrode lines i. The real touch positioning point on the row electrode line i is closer to the leading end of the row electrode lines i-1 and i+1, at the four possible touch positioning points (i, e), (i, f), ( j, e), (j, f), the possible touch positioning points (i, f) near the leading ends of the row electrode lines i-1 and i+1 are the real touch positioning points on the row electrode line i, away from the line The possible touch positioning points (i, e) of the electrode lines i-1 and i+1 are the "ghost points"; likewise, the touch signal detecting circuit 220 compares the adjacent row electrode lines j_l, j, j+1 The size of the touch signal is obtained, and the touch signal on the row electrode line j is larger than the touch signal on the row electrode lines j_l, j+1, and the real touch positioning point on the row electrode line j is closer. Extraction of row electrode line j In the four possible touch positioning points (i, e), (i, f), (j, e), (j, f), the possible touch positioning points near the leading end of the row electrode line j (j, e) is the real touch positioning point on the row electrode line j, and the possible touch positioning point (j, f) away from the row electrode line j is the "ghost point"; for the sake of safety, it can be "touched" from the column direction The dot signal and the ghost point are judged once, and the touch signal detecting circuit 220 compares the size of the touch signal on the column electrode lines e and f, and obtains the touch signal on the column electrode line e compared with the column electrode line f. The amplitude of the control signal is large, and the actual touch positioning point on the column electrode line e is closer to the column electrode line than the real touch positioning point on the column electrode line f. At the outset, it is again found that in the four possible touch positioning points (i, e), (i, f), (j, e), (j, f), the possible touch near the leading end of the column electrode line The positioning point (j, e) is a real touch positioning point on the column electrode line e, and the possible touch positioning point (i, f) far from the column electrode line leading end is a real touch positioning point on the column electrode line f, and The two possible touch points (i, e), (j, f) are just "ghost points".
这样， 我们就可以通过比较具有不同向引出端的相邻触控电极线上触控信号的大 小， 来确定真实触控定位点在电极线上的位置， 触控点更靠近触控信号较大的触控电 极线的引出端。  In this way, we can determine the position of the real touch positioning point on the electrode line by comparing the size of the touch signal on the adjacent touch electrode line with different leading ends, and the touch point is closer to the touch signal. The leading end of the touch electrode line.
所述触控屏当触控物在触控屏上每一个触碰范围内， 有多个电极线交叉点满足有 效触控定位条件时， 以其中的一个电极线交叉点为触控定位点； 特别是以满足有效触 控定位条件的多个电极线交叉点中的中心电极线交叉点为触控定位点。  When the touch object has a plurality of electrode line intersections in each touch range of the touch screen to satisfy an effective touch positioning condition, one of the electrode line intersection points is a touch positioning point; In particular, the intersection of the center electrode lines in the intersection of the plurality of electrode lines satisfying the effective touch positioning condition is a touch positioning point.
所述触控屏也可以通过比较各电极线之间触控信号的变化量或变化率， 来确定具 有可能性触控定位点所在电极线上的真实触控定位点。 具体实施方式四  The touch screen can also determine the actual touch positioning point on the electrode line where the touch positioning point is located by comparing the change amount or the change rate of the touch signal between the electrode lines. DETAILED DESCRIPTION OF THE INVENTION
如图 3所示的触控屏 300具有基板 310和触控电路 320，基板 310上设置有两组分 别有 m条行电极线的行电极组 311和有 n条列电极线的列电极组 312，其中 m和 n是大 于 2 的自然数； 行列两组间电极线相互交叉， 同组内各条电极线互不相交； 行电极组 311组内各条电极线在线的两端都设置有引出端，列电极组 312组内各条电极线在相同 方向的单端设置有引出端， 所述的电极线引出端， 是指电极线从触控区域延伸向触控 区域外， 在触控区域边界上的端点； 触控电路 320具有触控激励源 330、行触控信号检 测电路 341和 341、 列触控信号检测电路 350; 行电极组 311和列电极组 312的各条电 极线分别连接行触控信号检测电路 341、 341和列触控信号检测电路 350; 在触控电路 工作的时段中， 触控激励源对两组电极线或对同组内多于两条电极线同时施加有触控 激励信号， 触控信号检测电路同时或分时检测各电极线上的触控信号， 来探测各电极 是否被触碰。  The touch screen 300 shown in FIG. 3 has a substrate 310 and a touch circuit 320. The substrate 310 is provided with two sets of row electrode groups 311 each having m row electrode lines and a column electrode group 312 having n column electrode lines. Where m and n are natural numbers greater than 2; the electrode lines of the two rows intersect with each other, and the electrode lines of the same group do not intersect each other; the electrode lines of the row electrode group 311 are provided with the terminals at both ends of the line Each of the electrode lines of the column electrode group 312 is provided with a lead end at a single end in the same direction, and the electrode line lead end extends from the touch area to the touch area, at the boundary of the touch area. The touch circuit 320 has a touch excitation source 330, row touch signal detecting circuits 341 and 341, and a column touch signal detecting circuit 350. The electrode lines of the row electrode group 311 and the column electrode group 312 are respectively connected to each other. Touch signal detecting circuits 341, 341 and column touch signal detecting circuit 350; during the working period of the touch circuit, the touch excitation source simultaneously applies touch to two sets of electrode lines or more than two electrode lines in the same group Control the excitation signal, The touch signal detecting circuit detects the touch signals on each electrode line at the same time or in a time-sharing manner to detect whether each electrode is touched.
本具体实施方式是为了判断多点触控， 信号处理方案是在两端具有引出端的行电 极组 311 的电极线上， 通过比较同一电极线两个引出端上触控信号的大小， 来判断真 实触控点在触控电极线上的位置。  The specific implementation manner is to determine multi-touch. The signal processing scheme is an electrode line of a row electrode group 311 having terminals at both ends. The size of the touch signal on the two terminals of the same electrode line is compared to determine the trueness. The position of the touch point on the touch electrode line.
操作者同时触碰到第 i行和第 f列的交叉点（i， f)附近和第 j行和第 e列的交叉点 (j, e)附近， 行触控信号检测电路 341、 342在行电极线组 311中的两个行电极线 i、 j 上都检测到满足有效触控条件的触控信号，列触控信号检测电路 350在列电极线组 312 中的两个列电极线 e、 f上都检测到满足有效触控条件的触控信号； 具有触控信号的行 电极线 i、 j和列电极线 e、 f 就是可能触控定位点所对应的触控电极线， 所以可能触 控定位点就有四个， 分别是 (i，e)、 （i，f)、 （j，e)、 （j，f)。 虽然行电极线 i和 j上的 两端都有触控信号， 但两端触控信号的大小是不同的， 触控电路 320通过比较行电极 线 i两端触控信号的大小， 得出行电极线 i上靠近触控信号检测电路 342—侧引出端 上的触控信号比靠近触控信号检测电路 341 —侧引出端上的触控信号的幅值大， 在行 电极线 i上的真实触控定位点就更靠近触控信号检测电路 342—侧的引出端， 在四个 可能触控定位点（i，e)、 (i，f)、 (j，e)、 (j，f)中， 靠近行电极线 i在触控信号检测电 路 342—侧引出端的可能触控定位点（i， f)就是行电极线 i上的真实触控定位点， 靠近 行电极线 i在触控信号检测电路 341—侧引出端的可能触控定位点（i， e)就是 "鬼点"; 同样， 触控电路 320通过比较行电极线 j两端触控信号的大小， 得出行电极线 j上靠 近触控信号检测电路 341—侧引出端上的触控信号比靠近触控信号检测电路 342—侧 引出端上的触控信号的幅值大， 在行电极线 j 上的真实触控定位点就更靠近触控信号 检测电路 341—侧的引出端， 在四个可能触控定位点（i，e)、 (i，f)、 (j，e)、 (j，f)中， 靠近行电极线 j在触控信号检测电路 341—侧引出端的可能触控定位点（j， e)就是行电 极线 j上的真实触控定位点， 靠近行电极线 j在触控信号检测电路 342—侧引出端的 可能触控定位点（j， f)就是 "鬼点"。 触控屏对真实触控定位点上的触控实施功能性操 作。 The operator simultaneously touches the vicinity of the intersection (i, f) of the i-th row and the f-th column and the intersection (j, e) of the j-th row and the e-th column, and the touch signal detecting circuits 341, 342 are The touch signals satisfying the effective touch conditions are detected on the two row electrode lines i, j in the row electrode group 311, and the column touch signal detecting circuit 350 is in the column electrode group 312. The touch signals satisfying the effective touch conditions are detected on the two column electrode lines e and f; the row electrode lines i, j and the column electrode lines e and f having the touch signals are corresponding to the touch touch points. The touch electrode line, so there may be four touch points, which are (i, e), (i, f), (j, e), (j, f). Although both ends of the row electrode lines i and j have touch signals, the sizes of the touch signals at both ends are different, and the touch circuit 320 compares the size of the touch signals at both ends of the row electrode lines i to obtain row electrodes. The touch signal on the side of the line i near the touch signal detecting circuit 342 is larger than the amplitude of the touch signal on the side of the touch signal detecting circuit 341, and the real touch on the line electrode i The control positioning point is closer to the leading end of the touch signal detecting circuit 342 - in the four possible touch positioning points (i, e), (i, f), (j, e), (j, f) The possible touch positioning points (i, f) near the row electrode line i at the side of the touch signal detecting circuit 342 are the real touch positioning points on the row electrode line i, and the touch signal detection is near the row electrode line i. Circuit 341 - the possible touch positioning point (i, e) of the side lead is the "ghost point"; likewise, the touch circuit 320 compares the size of the touch signal at both ends of the row electrode line j to obtain the proximity of the row electrode line j The control signal detecting circuit 341 - the touch signal on the side lead is closer to the touch signal detecting circuit 342 The amplitude of the touch signal on the side lead is large, and the actual touch positioning point on the row electrode line j is closer to the leading end of the touch signal detecting circuit 341, at the four possible touch positioning points (i , e), (i, f), (j, e), (j, f), the possible touch positioning points (j, e) near the row electrode line j at the side of the touch signal detecting circuit 341 The real touch positioning point on the row electrode line j is close to the row electrode line j. The possible touch positioning point (j, f) at the side of the touch signal detecting circuit 342 is the "ghost point". The touch screen performs functional operations on the touch on the real touch positioning point.
这样， 我们就可以通过比较同一电极线上双向引出端上触控信号的大小， 来确定 真实触控定位点在电极线上的位置， 触控点更靠近触控信号较大的引出端。  In this way, we can determine the position of the real touch positioning point on the electrode line by comparing the size of the touch signal on the bidirectional terminal on the same electrode line, and the touch point is closer to the larger end of the touch signal.
所述两端都具有引出端的触控电极线， 可以是行电极线， 也可以是列电极线， 也 可以是行列电极线同时都具有双向引出端。  The touch electrode lines having the terminals at both ends may be row electrode lines, column electrode lines, or row and column electrodes, and both have bidirectional terminals.
触控屏对检测到的真实触控定位点可以进行 "提示性操作"或 "功能性操作"； 所 述 "提示性操作"是让显示画面或显示画面的局部在被触后较被触前发生改变， 或 "拖 动"或 "放大"或 "縮小"或 "旋转"功能的操作； 所述功能性操作是执行 "选择" 或 "拖动"或 "书写"或 "放大"或 "縮小"或 "旋转"功能的操作； 所述 "选择" 操作， 是在触控屏检测到真实触控定位点时， 显示画面进入到下一个显示状态； 所述 "拖动"操作， 是在真实触控定位点在屏幕上移动时， 显示画面或显示画面的局部跟 随触点移动； 所述 "放大"操作， 是在两个真实触控定位点相互远离时， 显示画面或 显示画面的局部被放大； 所述 "縮小"操作， 是在两个真实触控定位点相互靠近时， 显示画面或显示画面的局部被縮小； 所述 "旋转"操作， 是在两个真实触控定位点相 对转动时， 显示画面或显示画面的局部被旋转； 所述 "书写"操作， 是在真实触控定 位点在屏幕上移动时， 显示画面上产生一条跟随触点移动的笔迹； 作 "书写"操作时， 还可依多条触控电极线上的触控信号的大小进行插值运算， 定位出触控电极线间的笔 迹位置。 具体实施方式五 The touch screen can perform "prompt operation" or "functional operation" on the detected real touch positioning point; the "presentation operation" is to make the display screen or the part of the display screen be touched after being touched. The operation of a change, or "drag" or "zoom in" or "zoom out" or "rotate"function; the functional operation is to perform "select" or "drag" or "write" or "zoom in" or "zoom out" The operation of the "or" rotation function; the "select" operation is when the touch screen detects the real touch positioning point, the display screen enters the next display state; the "drag" operation is true When the touch positioning point moves on the screen, the partial display of the display screen or the display screen follows the contact movement; the "magnification" operation is when the two real touch positioning points are away from each other, the display screen or the partial portion of the display screen is Zooming in; the "zooming out" operation is when the two real touch positioning points are close to each other, the display screen or the portion of the display screen is reduced; the "rotation" operation is performed at two real touch positioning points. When rotating, the display screen or a part of the display screen is rotated; the "writing" operation is to generate a handwriting following the contact movement when the real touch positioning point moves on the screen; During operation, the interpolation operation may be performed according to the size of the touch signals on the plurality of touch electrode lines to locate the position of the handwriting between the touch electrode lines. DETAILED DESCRIPTION OF THE INVENTION
如图 4a所示的触控屏 400具有基板 410和触控电路 420， 基板 410上设置有两组 分别有 m条行电极线的行电极组 411和有 n条列电极线的列电极组 412， 其中 m和 n 是大于 2 的自然数； 行列两组间电极线相互交叉， 同组内各条电极线互不相交； 组内 各条电极线的引出端设置在相同方向， 所述的电极线引出端， 是指电极线从触控区域 延伸向触控区域外， 在触控区域边界上的端点； 触控电路 420具有触控激励源 430和 行信号检测电路 440和列触控信号检测电路 450;行电极组 411和列电极组 412的各条 电极线分别连接行触控信号检测电路 440和列触控信号检测电路 450;在触控电路工作 的时段中， 触控激励源对两组电极线或对同组内多于两条电极线同时施加有触控信号， 触控信号检测电路同时或分时检测各电极线上的触控信号， 来探测各电极是否被触碰。  The touch screen 400 shown in FIG. 4a has a substrate 410 and a touch circuit 420. The substrate 410 is provided with two sets of row electrode groups 411 having m row electrode lines and column electrode groups 412 having n column electrode lines. Where m and n are natural numbers greater than 2; the electrode lines of the two rows intersect with each other, and the electrode lines of the same group do not intersect each other; the leading ends of the electrode lines of the group are disposed in the same direction, the electrode lines The terminal end refers to an end point of the electrode line extending from the touch area to the touch area and at the boundary of the touch area; the touch circuit 420 has the touch excitation source 430 and the line signal detecting circuit 440 and the column touch signal detecting circuit. 450; each electrode line of the row electrode group 411 and the column electrode group 412 are respectively connected to the row touch signal detecting circuit 440 and the column touch signal detecting circuit 450; during the working period of the touch circuit, the touch excitation source is paired The electrode line or the pair of electrode lines in the same group simultaneously apply a touch signal, and the touch signal detecting circuit detects the touch signals on each electrode line at the same time or in a time-sharing manner to detect whether each electrode is touched.
本具体实施方式是为了判断多点触控， 信号处理方案是以触控信号超过信号阈值 的触控电极线上的交叉点为可能触控定位点， 通过所有可能触控定位点的不同组合， 来拟合该触控电极线触控信号的大小， 与该触控电极线实际测量到的触控信号大小比 较， 来判断该触控电极线上的一个或多个真实触控定位点在触控电极线上的位置。  The specific implementation manner is to determine multi-touch, and the signal processing scheme is that the intersection of the touch electrode line whose touch signal exceeds the signal threshold is a possible touch positioning point, and through different combinations of all possible touch positioning points, The size of the touch signal of the touch electrode line is compared with the size of the touch signal actually measured by the touch electrode line to determine that one or more real touch points on the touch electrode line are touched. Control the position on the electrode line.
操作者同时触碰到第 i行和第 e列的交叉点（i， e)附近， 第 i行和第 g列的交叉点The operator simultaneously touches the intersection of the i-th row and the e-th column (i, e), the intersection of the i-th row and the g- th column
(i， g)附近， 和第 j行和第 f 列的交叉点（j， f)附近， 行触控信号检测电路 440在行电 极线组 411中的两个行电极线 i、 j上都检测到满足有效触控条件的触控信号， 列触控 信号检测电路 450在列电极线组 412中的三个列电极线 e、 f、 g上都检测到满足有效 触控条件的触控信号； 具有触控信号的行电极线 i、 j和列电极线 e、 f、 g就是可能触 控定位点所对应的触控电极线， 所以可能触控定位点就有六个， 分别是 (i，e)、 （i，f)、 (i，g)、 （j，e)、 (j, f) 、 （i，g)。 In the vicinity of (i, g), and in the vicinity of the intersection (j, f) of the jth row and the fth column, the row touch signal detecting circuit 440 is on both row electrode lines i, j in the row electrode group 411 A touch signal that satisfies the effective touch condition is detected, and the column touch signal detecting circuit 450 detects the touch signal satisfying the effective touch condition on the three column electrode lines e, f, and g in the column electrode group 412. The row electrode lines i, j and the column electrode lines e, f, g having the touch signals are the touch electrode lines corresponding to the touch positioning points, so there may be six touch positioning points, respectively (i , e), (i, f), (i, g), (j, e), (j, f), (i, g).
图 4b是手指触碰触控电极线的电路模型， 其中 r是行电极线在相邻列电极线间的 电阻值， Cf 是手指触碰电极线时与触控电极线间的耦合电容。 为了判断行电极线 i和 j上的真实触控定位点， 我们依图 4b的电路模型， 以手指与触控电极线间的耦合电容 Cf,在三个列电极线 e、 f、 g处， 以数学组合的方式分组连接行电极线 i或行电极线 j， 进行拟合计算行电极线 i或行电极线 j上触控信号的大小， 并与对行电极线 i或行电 极线 j实际测量到的触控信号大小比较。 经比较得到， 对行电极线 i在第 e列和第 g 列处连接耦合电容 Cf 的拟合计算数值， 与行电极线 i上实际测量到的触控信号大小相 吻合； 对行电极线 j在第 f列处连接耦合电容 Cf 的拟合计算数值， 与行电极线 j上实 际测量到的触控信号大小相吻合； 从而得出真实触控定位点位于第 i行和第 e列的交 叉点（i， e)、 第 i行和第 g列的交叉点（i， g)、 第 j行和第 f列的交叉点 (j, f)的判断， 而六个可能触控定位点中的其余三个 (i，f)、 （j，e)、 （i，g)就只是 "鬼点"。 4b is a circuit model in which a finger touches a touch electrode line, where r is a resistance value of the row electrode line between adjacent column electrode lines, and Cf is a coupling capacitance between the finger touching the electrode line and the touch electrode line. In order to judge the actual touch positioning points on the row electrode lines i and j, according to the circuit model of FIG. 4b, the coupling capacitance Cf between the finger and the touch electrode line is at the three column electrode lines e, f, g, The row electrode line i or the row electrode line j is connected in a mathematical combination manner, and the size of the touch signal on the row electrode line i or the row electrode line j is calculated by fitting, and the row electrode line i or row is electrically connected. The comparison of the touch signal size actually measured by the polar line j. By comparison, the fitting calculation value of the coupling capacitor Cf is connected to the row electrode line i at the e-th column and the g-th column, which is consistent with the actually-measured touch signal size on the row electrode line i; The fitting calculation value of the coupling capacitor Cf is connected at the f-th column, which coincides with the actually-measured touch signal size on the row electrode line j; thereby obtaining the intersection of the real touch positioning point in the ith row and the e-th column. The intersection of the point (i, e), the intersection of the i-th row and the g-th column (i, g), the intersection of the j-th row and the f-th column (j, f), and the six possible touch positioning points The remaining three (i, f), (j, e), (i, g) are just "ghost points."
触控屏对真实触控定位点上的触控实施功能性操作， 所述功能性操作是执行 "选 择"或 "拖动"或 "书写"或 "放大"或 "縮小"或 "旋转"功能的操作； 所述 "选 择"操作， 是在触控屏检测到真实触控定位点时， 显示画面进入到下一个显示状态； 所述 "拖动"操作， 是在真实触控定位点在屏幕上移动时， 显示画面或显示画面的局 部跟随触点移动； 所述 "放大"操作， 是在两个真实触控定位点相互远离时， 显示画 面或显示画面的局部被放大； 所述 "縮小"操作， 是在两个真实触控定位点相互靠近 时， 显示画面或显示画面的局部被縮小； 所述 "旋转"操作， 是在两个真实触控定位 点相对转动时， 显示画面或显示画面的局部被旋转； 所述 "书写"操作， 是在真实触 控定位点在屏幕上移动时， 显示画面上产生一条跟随触点移动的笔迹； 作 "书写"操 作时， 还可依多条触控电极线上的触控信号的大小进行插值运算， 定位出触控电极线 间的笔迹位置。 具体实施方式六  The touch screen performs a functional operation on the touch on the real touch positioning point, and the functional operation is to perform a "select" or "drag" or "write" or "zoom in" or "zoom out" or "rotate" function The "select" operation is when the touch screen detects the real touch positioning point, the display screen enters the next display state; the "drag" operation is at the real touch positioning point on the screen When moving up, the partial display contact movement of the display screen or the display screen is performed; when the two real touch positioning points are away from each other, the display screen or a part of the display screen is enlarged; "Operation, when the two real touch positioning points are close to each other, the display screen or the part of the display screen is reduced; the "rotation" operation is to display the screen or display when the two real touch positioning points are relatively rotated. The part of the picture is rotated; the "writing" operation is to generate a handwriting following the contact movement when the real touch positioning point moves on the screen; when the "writing" operation is performed, The size of the touch signals of a plurality of touch electrode line interpolation operation, locate the position of the handwriting between the sensing lines. Specific Embodiment 6
触控屏具有基板和触控电路， 基板上设置有两组行电极组和列电极组； 行列两组 间电极线相互交叉， 同组内各条电极线互不相交； 触控电路具有触控激励源和触控信 号检测电路， 行电极组和列电极组的各条电极线均连接触控信号检测电路； 在触控电 路工作的时段中， 触控激励源对两组电极线或对同组内多于两条电极线同时施加有触 控激励信号， 触控信号检测电路同时或分时检测各电极线上的触控信号， 来探测各电 极是否被触碰。  The touch screen has a substrate and a touch circuit, and two rows of row electrode groups and column electrode groups are disposed on the substrate; the electrode lines of the two groups intersect with each other, and the electrode lines in the same group do not intersect each other; the touch circuit has touch The excitation source and the touch signal detecting circuit, the electrode lines of the row electrode group and the column electrode group are connected to the touch signal detecting circuit; in the working period of the touch circuit, the touch excitation source is opposite to the two sets of electrode lines or the same More than two electrode lines in the group are simultaneously provided with a touch excitation signal, and the touch signal detection circuit detects the touch signals on each electrode line at the same time or in a time-sharing manner to detect whether each electrode is touched.
本具体实施方式是为了判断有效触控和触控力度， 信号处理方案是通过触控信号 幅值与预设信号阈值的比较， 来判断触点上的触碰力度， 再确定触控是 "触摸"或是 "触压"， 执行与 "触摸"或 "触压"相应的操作。  The specific implementation manner is to determine the effective touch and touch intensity. The signal processing scheme determines the touch force on the contact by comparing the touch signal amplitude with the preset signal threshold, and then determines that the touch is “touch”. "Or "touch", perform the operation corresponding to "touch" or "touch".
如图 5所示， 对于各触控电极线设置两个信号阈值 T1和 T2， 第一信号阈值 T1小 于第二信号阈值 Τ2; 触控信号检测电路检测到触控电极线上有触控信号 S， 触控电路 将触控电极线上的触控信号 S与预设信号阈值进行比较，第一信号阈值 T1为触摸阈值， 第二信号阈值 T2为触压阈值， 第二信号阈值 Τ2大于第一信号阈值 Tl。 当触控电极线 上的触控信号 S1小于第一信号阈值 T1时， 认为该触控电极线为未被触电极线； 当触 控电极线上的触控信号 S2大于第一信号阈值 T1而小于第二信号阈值 Τ2时， 认为该触 控电极线为被摸电极线， 行被摸电极线和列被摸电极线的交叉点定位为触摸点； 当触 控电极线上的触控信号 S3大于第二信号阈值 Τ2时， 认为该触控电极线为被压电极线， 行被压电极线和列被压电极线的交叉点定位为触压点。 As shown in FIG. 5, two signal thresholds T1 and T2 are set for each touch electrode line, and the first signal threshold T1 is smaller than the second signal threshold Τ2; the touch signal detecting circuit detects that the touch electrode line has a touch signal S. The touch circuit compares the touch signal S on the touch electrode line with a preset signal threshold, and the first signal threshold T1 is a touch threshold. The second signal threshold T2 is a touch threshold, and the second signal threshold Τ2 is greater than the first signal threshold T1. When the touch signal S1 on the touch electrode line is smaller than the first signal threshold T1, the touch electrode line is considered to be the untouched electrode line; when the touch signal S2 on the touch electrode line is greater than the first signal threshold T1 When the second signal threshold is less than 第二2, the touch electrode line is considered to be the touched electrode line, and the intersection of the touched electrode line and the column touched electrode line is positioned as a touch point; when the touch signal on the touch electrode line is S3 When the second signal threshold is greater than 第二2, the touch electrode line is considered to be the pressed electrode line, and the intersection of the row of pressed electrode lines and the column of pressed electrode lines is positioned as a contact point.
触控屏对定位出的触摸点实施 "提示性操作"， 对定位出的触压点实施 "提示性操 作"或 "功能性操作"。 "提示性操作"是让显示画面或显示画面的局部在被触后较被 触前发生改变； 触压的 "功能性操作"， 包括有是对触点在预设时间范围内的触压和移 动的响应， 所述响应是执行 "选择"或 "拖动"或 "书写"或 "放大"或 "縮小"或 The touch screen performs an "instructive operation" on the positioned touch points, and performs "prompting operation" or "functional operation" on the positioned touch points. "Prompt operation" is to make the display screen or part of the display screen change before being touched; the "functional operation" of the touch pressure includes the touch pressure of the contact within the preset time range. The response to the move, the response is to perform a "select" or "drag" or "write" or "zoom in" or "zoom out" or
"旋转"功能的操作。 执行 "书写"操作时， "书写"笔迹的粗细是随触控信号的大小 而改变， 触控信号愈大， "书写"笔迹愈粗。 具体实施方式七 The operation of the "Rotate" function. When performing the "writing" operation, the thickness of the "writing" handwriting changes with the size of the touch signal. The larger the touch signal, the thicker the "writing" handwriting. DETAILED DESCRIPTION OF THE INVENTION
触控屏具有基板和触控电路， 基板上设置有行电极组和列电极组； 行列两组间电 极线相互交叉， 同组内各条电极线互不相交； 触控电路具有触控激励源和触控信号检 测电路， 行电极组和列电极组的各条电极线均连接触控信号检测电路； 在触控电路工 作的时段中， 触控激励源对两组电极线或对同组内多于两条电极线同时施加有触控激 励信号， 触控信号检测电路同时或分时检测各电极线上的触控信号， 来探测各电极是 否被触碰。  The touch screen has a substrate and a touch circuit, and the row electrode group and the column electrode group are disposed on the substrate; the electrode lines of the two groups intersect with each other, and the electrode lines of the same group do not intersect each other; the touch circuit has a touch excitation source And the touch signal detecting circuit, the electrode lines of the row electrode group and the column electrode group are connected to the touch signal detecting circuit; during the working period of the touch circuit, the touch excitation source is paired with two sets of electrode lines or within the same group More than two electrode lines are simultaneously provided with a touch excitation signal, and the touch signal detection circuit detects the touch signals on each electrode line at the same time or in a time-sharing manner to detect whether each electrode is touched.
信号处理方案是设置一个信号阈值 Τ和一个数量阈值 Ν，通过触控信号超过信号阈 值的相邻触控电极线数与数量阈值的比较， 来判断触点上的触碰力度， 再确定触控是 "触摸"或是 "触压"， 执行与 "触摸"或 "触压"相应的操作。  The signal processing scheme is to set a signal threshold Τ and a quantity threshold Ν, and compare the number of adjacent touch electrode lines and the number threshold by the touch signal exceeding the signal threshold to determine the touch force on the contact, and then determine the touch. It is "touch" or "touch", and performs the operation corresponding to "touch" or "touch".
触控基板上具有触控信号超过信号阈值的触控电极线， 当触控信号超过信号阈值 的相邻触控电极线数少于数量阈值时， 触控屏以触控信号超过信号阈值的触控电极线 为被触电极线， 将行被触电极线和列被触电极线的交叉点定位为触摸点； 当触控信号 超过信号阈值的相邻触控电极线数多于数量阈值时， 触控屏以触控信号超过信号阈值 的触控电极线为被压电极线， 将行被压电极线和列被压电极线的交叉点定位为触压点。  The touch panel has a touch electrode line whose touch signal exceeds a signal threshold. When the number of adjacent touch electrodes whose touch signal exceeds the signal threshold is less than a threshold, the touch screen exceeds the signal threshold by the touch signal. The control electrode line is a touched electrode line, and the intersection of the line touched electrode line and the column touched electrode line is positioned as a touch point; when the number of adjacent touch electrode lines whose touch signal exceeds the signal threshold exceeds the threshold value, The touch screen uses the touch electrode line whose touch signal exceeds the signal threshold as the pressed electrode line, and positions the intersection of the line pressed electrode line and the column pressed electrode line as the contact point.
触控信号检测电路检测到触控电极线上有触控信号， 触控电路将触控电极线上的 触控信号与预设的信号阈值 τ进行比较， 当触控电极线上的触控信号小于信号阈值 τ 时， 认为该触控电极线为未被触电极线； 当触控电极线上的触控信号大于信号阈值 τ 时， 认为线上的触控信号大于信号阈值 τ 的触控电极线为被触电极线， 同时， 触控电 路检测到与被触电极线相邻的触控信号大于信号阈值 T的触控电极线数量 n，触控电路 将触控电极线数量 n与数量阈值 N进行比较， 在相邻的触控信号大于信号阈值 T的触 控电极线数量 n小于数量阈值 N时， 认为被触电极线为被摸电极线， 行被摸电极线和 列被摸电极线的交叉点定位为触摸点； 在相邻的触控信号大于信号阈值 T 的触控电极 线数量 n大于数量阈值 N时， 认为被触电极线为被压电极线， 行被压电极线和列被压 电极线的交叉点定位为触压点。 The touch signal detecting circuit detects that there is a touch signal on the touch electrode line, and the touch circuit compares the touch signal on the touch electrode line with a preset signal threshold τ, and the touch signal on the touch electrode line When the signal threshold is less than τ, the touch electrode line is considered to be untouched; when the touch signal on the touch electrode line is greater than the signal threshold τ The touch electrode line whose touch signal on the line is greater than the signal threshold τ is the touched electrode line, and the touch circuit detects that the touch signal adjacent to the touched electrode line is greater than the signal threshold T. The number of lines n, the touch circuit compares the number n of touch electrode lines with the number threshold N, and considers the touched electrode line when the number n of touch electrode lines whose adjacent touch signals are greater than the signal threshold T is less than the threshold value N For the touched electrode line, the intersection of the touched electrode line and the column touched electrode line is positioned as a touch point; when the number n of the touch electrode lines whose adjacent touch signals are greater than the signal threshold T is greater than the number threshold N, The touched electrode line is the pressed electrode line, and the intersection of the row of pressed electrode lines and the column of pressed electrode lines is positioned as a contact point.
触控屏对定位出的触摸点实施 "提示性操作"， 对定位出的触压点实施 "提示性操 作"或 "功能性操作"。 所述 "提示性操作"是让显示画面或显示画面的局部在被触后 较被触前发生改变， 或 "拖动"或 "放大"或 "縮小"或 "旋转"功能的操作； 所述 The touch screen performs an "instructive operation" on the positioned touch points, and performs "prompting operation" or "functional operation" on the positioned touch points. The "presentation operation" is an operation of causing a part of a display screen or a display screen to be changed after being touched, or "dragging" or "zooming in" or "zooming out" or "rotating" functions;
"功能性操作" 包括有是对触点在预设时间范围内的触压和移动的响应， 所述响应是 执行 "选择"或 "拖动"或 "书写"或 "放大"或 "縮小"或 "旋转"功能的操作； 所述 "选择"操作， 是在触控屏检测到真实触控定位点时， 显示画面进入到下一个显 示状态； 所述 "拖动"操作， 是在真实触控定位点在屏幕上移动时， 显示画面或显示 画面的局部跟随触点移动； 所述 "放大"操作， 是在两个真实触控定位点相互远离时， 显示画面或显示画面的局部被放大； 所述 "縮小"操作， 是在两个真实触控定位点相 互靠近时， 显示画面或显示画面的局部被縮小； 所述 "旋转"操作， 是在两个真实触 控定位点相对转动时， 显示画面或显示画面的局部被旋转； 所述 "书写"操作， 是在 真实触控定位点在屏幕上移动时， 显示画面上产生一条跟随触点移动的笔迹， 在执行 "书写"操作时， "书写"笔画的粗细是随触控信号的大小而改变， 触控信号愈大， "书 写"笔画愈粗， 在作 "书写"操作时， 还可依多条触控电极线上的触控信号的大小进 行插值运算， 定位出触控电极线间的笔迹位置。 "Functional operation" includes having a response to the contact and movement of the contact within a preset time range, the response being a "select" or "drag" or "write" or "zoom in" or "zoom out" Or the operation of the "rotation" function; when the touch screen detects the real touch positioning point, the display screen enters the next display state; the "drag" operation is in the real touch When the control positioning point moves on the screen, the partial display contact movement of the display screen or the display screen is performed; when the two real touch positioning points are away from each other, the display screen or the part of the display screen is enlarged. The "zoom out" operation is when the two real touch positioning points are close to each other, the display screen or the part of the display screen is reduced; the "rotation" operation is when the two real touch positioning points are relatively rotated. a part of the display screen or the display screen is rotated; the "writing" operation is to generate a handwriting following the movement of the contact point on the display screen when the real touch positioning point moves on the screen, performing "writing" When doing this, the thickness of the "writing" stroke changes with the size of the touch signal. The larger the touch signal, the thicker the "writing" stroke, and the "writing" operation can also be based on multiple touch electrodes. The size of the touch signal is interpolated to locate the position of the handwriting between the touch electrode lines.
所述触控屏当触控物在触控屏上每一个触碰范围内， 有多个电极线交叉点满足有 效触控定位条件时， 以其中的一个电极线交叉点为触控定位点； 特别是以满足有效触 控定位条件的多个电极线交叉点中的中心电极线交叉点为触控定位点； 也可以是以非 电极线交叉点的位置为触控定位点。 具体实施方式八  When the touch object has a plurality of electrode line intersections in each touch range of the touch screen to satisfy an effective touch positioning condition, one of the electrode line intersection points is a touch positioning point; In particular, the intersection of the center electrode lines in the intersection of the plurality of electrode lines satisfying the effective touch positioning condition is the touch positioning point; or the position of the intersection of the non-electrode lines may be the touch positioning point. Embodiment 8
如图 6所示的触控屏 600具有基板 610和触控电路 620，基板 610上设置有两组分 别有 m条行电极线的行电极组 611和有 n条列电极线的列电极组 612，其中 m和 n是大 于 2 的自然数； 行列两组间电极线相互交叉， 同组内各条电极线互不相交； 行电极组 611组内各条电极线在线的相同方向的单端设置有引出端，列电极组 612组内各条电极 线在线的相同方向的单端设置有引出端， 所述的电极线引出端， 是指电极线从触控区 域延伸向触控区域外， 在触控区域边界上的端点； 触控电路 620具有触控激励源 630、 行触控信号检测电路 640、 列触控信号检测电路 650; 行电极组 611和列电极组 612的 各条电极线分别连接行触控信号检测电路 640和列触控信号检测电路 650;在触控电路 工作的时段中， 触控激励源对两组电极线或对同组内多于两条电极线同时施加有触控 激励信号， 触控信号检测电路同时或分时检测各电极线上的触控信号， 来探测各电极 是否被触碰。 The touch screen 600 shown in FIG. 6 has a substrate 610 and a touch circuit 620. The substrate 610 is provided with two sets of row electrode groups 611 each having m row electrode lines and a column electrode group 612 having n column electrode lines. Where m and n are natural numbers greater than 2; the electrode lines of the two rows intersect with each other, and the electrode lines of the same group do not intersect each other; Each of the electrode lines of the 611 group is provided with a lead end at the single end in the same direction on the line, and each of the electrode lines of the column electrode group 612 is provided with a lead end at the single end in the same direction on the line, and the electrode line lead end is The finger electrode 620 has a touch excitation source 630, a touch signal detection circuit 640, and a column touch signal detection circuit 650; the touch circuit 620 has an end point on the boundary of the touch area; The electrode lines of the row electrode group 611 and the column electrode group 612 are respectively connected to the row touch signal detecting circuit 640 and the column touch signal detecting circuit 650; during the working period of the touch circuit, the touch excitation source pairs the two groups of electrode lines Or a touch excitation signal is simultaneously applied to more than two electrode lines in the same group, and the touch signal detection circuit detects the touch signals on each electrode line at the same time or in a time-sharing manner to detect whether each electrode is touched.
本具体实施方式是为了判断有效触控和触控力度， 信号处理方案是对于触控屏各 触控电极线设置一个信号阈值 τ，并设置触控信号超过信号阈值的相邻触控电极线数的 数量阈值 Nl、 Ν2和 Ν3， 以触控信号超过信号阈值的触控电极线为被触电极线位置， 再 根据超过信号阈值的相邻触控电极线数是否超过触摸数量阈值 Nl、 触压数量阈值 Ν2 或持握数量阈值 Ν3， 确定触控是属于触摸、 触压或持握状态； 所述持握数量阈值 Ν3 大于所述触压数量阈值 Ν2， 所述触压数量阈值 Ν2大于或等于所述触摸数量阈值 Nl。  The specific implementation manner is to determine effective touch and touch strength. The signal processing scheme is to set a signal threshold τ for each touch electrode line of the touch screen, and set the number of adjacent touch electrode lines whose touch signal exceeds the signal threshold. The number of thresholds N1, Ν2, and Ν3, the touch electrode line whose touch signal exceeds the signal threshold is the position of the touched electrode line, and according to whether the number of adjacent touch electrode lines exceeding the signal threshold exceeds the threshold number of touches, Nl, touch pressure The quantity threshold Ν2 or the holding quantity threshold Ν3 determines whether the touch is in a touch, touch or holding state; the holding quantity threshold Ν3 is greater than the touch quantity threshold Ν2, and the touch quantity threshold Ν2 is greater than or equal to The number of touch thresholds N1.
操作者同时触碰到第 i行到第 j行之间的所有行电极线和第 e列到第 f 列之间的 所有列电极线， 行触控信号检测电路 640在行电极线组 611中的行电极线 i、 j之间的 所有行电极线上都检测到有超过信号阈值 T的触控信号， 列触控信号检测电路 650在 列电极线组 612中的列电极线 e、 f之间的所有列电极线上都检测到有超过信号阈值 T 的触控信号； 具有触控信号的行电极线 i、 j之间的所有行电极线和列电极线 e、 f 之 间的所有列电极就是可能触控定位点所对应的触控电极线； 将超过信号阈值的行电极 线 i、 j之间的行电级线数量（j-i+1)与数量阈值 Nl、 N2和 N3相比较， 同时将超过信 号阈值的列电极线 e、 f之间的电级线数量 (f-e+1)与列数量阈值 Nl、 N2和 N3相比较。  The operator simultaneously touches all the row electrode lines between the i-th row to the j-th row and all the column electrode lines between the e-th column and the f-th column, and the row touch signal detecting circuit 640 is in the row electrode line group 611. A touch signal exceeding a signal threshold T is detected on all of the row electrode lines between the row electrode lines i and j, and the column touch signal detecting circuit 650 is in the column electrode line 612. A touch signal exceeding a signal threshold T is detected on all of the column electrode lines; all rows between the row electrode lines i and j having the touch signal and the column electrode lines e, f The electrode is the touch electrode line corresponding to the touch positioning point; the number of row level lines (j-i+1) between the row electrode lines i and j exceeding the signal threshold is compared with the number thresholds N1, N2 and N3 In comparison, the number of electric level lines (f-e+1) between the column electrode lines e, f exceeding the signal threshold is simultaneously compared with the column number thresholds N1, N2 and N3.
若超过信号阈值的行电极线 i、 j之间的行电极线数量 (j-i+1)或列电极线 e、 f之 间的列电极线数量 (f-e+1)中的一者大于持握数量阈值 N3 时， 触控屏对持握区域不实 施操作。  One of the number of row electrode lines (j-i+1) between the row electrode lines i, j exceeding the signal threshold or the number of column electrode lines (f-e+1) between the column electrode lines e, f When the threshold value N3 is greater than the grip number, the touch screen does not perform an operation on the grip area.
若超过信号阈值的行电极线 i、 j之间的行电极线数量 (j-i+1)和列电极线 e、 f之 间的列电极线数量 (f-e+1)两者都小于持握数量阈值 N3、而其中至少有一者大于触压数 量阈值 N2时， 以触控信号超过信号阈值的行电极线为被压行电极线、 触控信号超过信 号阈值的列电极线为被压列电极线， 以所有被压行电极线的中间线为行代表线、 以所 有被压列电极线的中间线为列代表线， 以行代表线和列代表线的交叉点定位为触压点； 并对定位出的触压点实施触压提示性或功能性操作。 若超过信号阈值的行电极线 i、 j之间的行电极线数量 (j-i+1)和列电极线 e、 f之 间的列电极线数量 (f-e+1)两者都小于触压数量阈值 N2、又都大于触摸数量阈值 N1时， 以触控信号超过信号阈值的行电极线为被摸行电极线、 触控信号超过信号阈值的列电 极线为被摸列电极线， 将以所有行被摸行电极线的中间线为行代表线、 以所有被摸列 电极线的中间线为列代表线， 以行代表线和列代表线的交叉点定位为触摸点； 并对定 位出的触摸点实施触摸提示性操作。 If the number of row electrode lines (j-i+1) between the row electrode lines i, j exceeding the signal threshold and the number of column electrode lines (f-e+1) between the column electrode lines e, f are both smaller than When the threshold number N3 is held, and at least one of the thresholds is greater than the threshold value N2, the row electrode line whose touch signal exceeds the signal threshold is the pressed electrode line, and the column signal line whose touch signal exceeds the signal threshold is pressed. Column electrode line, with the middle line of all the pressed electrode lines as the row representative line, the middle line of all the pressed electrode lines as the column representative line, and the intersection point of the row representative line and the column representative line as the touch point ; Perform touch-sensitive or functional operation on the positioned contact point. If the number of row electrode lines (j-i+1) between the row electrode lines i, j exceeding the signal threshold and the number of column electrode lines (f-e+1) between the column electrode lines e, f are both smaller than When the touch threshold number N2 is greater than the touch threshold value N1, the row electrode line whose touch signal exceeds the signal threshold is the touched electrode line, and the column electrode line whose touch signal exceeds the signal threshold is the touched electrode line. The middle line of all the rows of the touched electrode lines is taken as a row representative line, the middle line of all the touched electrode lines is a column representative line, and the intersection of the row representative line and the column representative line is positioned as a touch point; The positioned touch points implement a touch prompt operation.
若超过信号阈值的行电极线 i、 j之间的行电极线数量 (j-i+1)和列电极线 e、 f之 间的列电极线数量 (f-e+1)两者中有一者小于触摸数量阈值 N1 时， 就判断触控屏处于 未触状态。  If there is one of the number of row electrode lines (j-i+1) between the row electrode lines i, j exceeding the signal threshold and the number of column electrode lines (f-e+1) between the column electrode lines e, f When the number of touches is less than the threshold N1, it is determined that the touch screen is in an untouched state.
也可以将判断条件设为超过信号阈值的行电极线数量（j-i+1)和列电极线数量 It is also possible to set the judgment condition to the number of row electrode lines (j-i+1) and the number of column electrode lines exceeding the signal threshold.
(f-e+1)两者都小于持握数量阈值 N3、 又都大于触压数量阈值 N2时， 才以触控信号超 过信号阈值的行电极线为被压行电极线、 触控信号超过信号阈值的列电极线为被压列 电极线。 When both (f-e+1) are smaller than the holding number threshold N3 and greater than the threshold number N2, the row electrode line whose touch signal exceeds the signal threshold is the pressed electrode line, and the touch signal exceeds The column electrode line of the signal threshold is the erected electrode line.
也可以将判断条件设为超过信号阈值的行电极线数量（j-i+1)和列电极线数量 (f-e+1)两者都小于触压数量阈值 N2、 而其中至少有一者大于触摸数量阈值 N1时， 就 以触控信号超过信号阈值的行电极线为被摸行电极线、 触控信号超过信号阈值的列电 极线为被摸列电极线； 超过信号阈值的行电极线数量 (j-i+1)和列电极线数量 (f-e+1) 两者都小于触摸数量阈值 N1时， 才判断触控屏处于未触状态。 具体实施方式九  It is also possible to set the judgment condition to the number of row electrode lines (j-i+1) and the number of column electrode lines (f-e+1) exceeding the signal threshold value, both of which are smaller than the threshold number of thresholds N2, and at least one of them is larger than When the threshold number N1 is touched, the row electrode line whose touch signal exceeds the signal threshold is the touched electrode line, and the column electrode line whose touch signal exceeds the signal threshold is the touched electrode line; the number of row electrode lines exceeding the signal threshold When the (j-i+1) and the number of column electrode lines (f-e+1) are both smaller than the touch number threshold N1, it is judged that the touch screen is in the untouched state. DETAILED DESCRIPTION OF THE INVENTION
如图 7所示的触控屏 700具有基板 710和触控电路 720，基板 710上设置有两组分 别有 m条行电极线的行电极组 711和有 n条列电极线的列电极组 712，其中 m和 n是大 于 2 的自然数； 行列两组间电极线相互交叉， 同组内各条电极线互不相交； 行电极组 711组内各条电极线在线的相同方向的单端设置有引出端，列电极组 712组内各条电极 线在线的相同方向的单端设置有引出端， 所述的电极线引出端， 是指电极线从触控区 域延伸向触控区域外， 在触控区域边界上的端点； 触控电路 720具有触控激励源 730、 行触控信号检测电路 740、 列触控信号检测电路 750; 行电极组 711和列电极组 712的 各条电极线分别连接行触控信号检测电路 740和列触控信号检测电路 750;在触控电路 工作的时段中， 触控激励源对两组电极线或对同组内多于两条电极线同时施加有触控 激励信号， 触控信号检测电路同时或分时检测各电极线上的触控信号， 来探测各电极 是否被触碰。 本具体实施方式是为了判断有效触控， 信号处理方案是对于触控屏各触控电极线 设置一个信号阈值 τ， 并设置触控信号超过信号阈值的相邻触控电极线数的数量阈值 、 ^和^， 以触控信号超过信号阈值的触控电极线为被触电极线位置， 再根据超过 信号阈值的相邻触控电极线数是否超过触摸数量阈值 N1、触压数量阈值 Ν2或持握数量 阈值 Ν3， 确定触控是属于触摸、触压或持握状态； 所述持握数量阈值 Ν3大于所述触压 数量阈值 Ν2， 所述触压数量阈值 Ν2大于或等于所述触摸数量阈值 Nl。 The touch screen 700 shown in FIG. 7 has a substrate 710 and two touch circuits 720. The substrate 710 is provided with two sets of row electrode groups 711 having m row electrode lines and column electrode groups 712 having n column electrode lines. Where m and n are natural numbers greater than 2; the electrode lines of the two rows intersect with each other, and the electrode lines of the same group do not intersect each other; the electrode lines of the row electrode group 711 are disposed at the single end in the same direction on the line. At the terminal end, each of the electrode lines of the column electrode group 712 is provided with a terminal end at the single end in the same direction on the line, and the electrode wire terminal end extends from the touch area to the outside of the touch area. The touch circuit 720 has a touch excitation source 730, a row touch signal detection circuit 740, and a column touch signal detection circuit 750; the electrode groups of the row electrode group 711 and the column electrode group 712 are respectively connected. The touch signal detecting circuit 740 and the column touch signal detecting circuit 750; during the working period of the touch circuit, the touch excitation source simultaneously applies touch to two sets of electrode lines or more than two electrode lines in the same group Excitation signal, touch signal detection circuit The touch signal detection or time-line of each electrode, to detect whether each electrode is touched. The specific implementation manner is to determine an effective touch. The signal processing scheme is to set a signal threshold τ for each touch electrode line of the touch screen, and set a threshold value of the number of adjacent touch electrode lines whose touch signal exceeds the signal threshold. ^ and ^, the touch electrode line whose touch signal exceeds the signal threshold is the position of the touched electrode line, and according to whether the number of adjacent touch electrode lines exceeding the signal threshold exceeds the touch number threshold N1, the touch number threshold Ν2 or Holding the threshold value Ν3, determining that the touch is in a touch, touch, or holding state; the holding quantity threshold Ν3 is greater than the touch quantity threshold Ν2, and the touch quantity threshold Ν2 is greater than or equal to the touch quantity threshold Nl.
操作者手掌支撑在触控屏上第 i行到第 j行之间的行电极线和第 f 列到第 g列之 间的列电极线的区域， 行触控信号检测电路 740在行电极线组 711中的行电极线 i、 j 之间的行电极线上都检测到有超过信号阈值 T 的触控信号， 列触控信号检测电路 750 在列电极线组 712中的列电极线 f、 g之间的列电极线上都检测到有超过信号阈值 T的 触控信号； 操作者在手掌支撑在触控屏上的同时， 食指也触压在触控屏上第 j行电极 线和第 e列电极线交叉处的区域， 行触控信号检测电路 740在行电极线组 711中的行 电极线 j附近检测到有超过信号阈值 T的触控信号， 列触控信号检测电路 750在列电 极线组 712中的列电极线 e附近检测到有超过信号阈值 T的触控信号。 将超过信号阈 值的行电极线 i、 j之间的行电级线数量 (j-i+1)和超过信号阈值的列电极线 f、 g之间 的列电级线数量 (g-f+1)与数量阈值 Nl、 N2和 N3相比较， 同时也将列电极线 e附近超 过信号阈值的列电级线数量与数量阈值 Nl、 N2和 N3相比较。  The operator's palm supports the row electrode line between the i-th row to the j-th row on the touch screen and the column electrode line between the f-th column and the g-th column, and the touch signal detecting circuit 740 is on the row electrode line. A touch signal exceeding a signal threshold T is detected on the row electrode line between the row electrode lines i and j in the group 711, and the column touch line detection unit 750 is in the column electrode line 712. A touch signal exceeding the signal threshold T is detected on the column electrode line between g; while the operator supports the touch screen on the touch screen, the index finger also touches the electrode line of the jth line on the touch screen and the first The area where the e-column line intersects, the touch signal detecting circuit 740 detects a touch signal exceeding the signal threshold T in the vicinity of the row electrode line j in the row electrode group 711, and the column touch signal detecting circuit 750 is in the column. A touch signal exceeding the signal threshold T is detected in the vicinity of the column electrode line e in the electrode line group 712. The number of row level lines (j-i+1) between the row electrode lines i, j exceeding the signal threshold and the number of column level lines between the column electrode lines f, g exceeding the signal threshold (g-f+ 1) Compared with the number thresholds N1, N2 and N3, the number of column electric level lines exceeding the signal threshold in the vicinity of the column electrode line e is also compared with the number thresholds N1, N2 and N3.
测到超过信号阈值的行电极线 i、 j之间的行电极线数量 (j-i+1)和列电极线 f、 g 之间的列电极线数量 (g-f+1)两者都大于持握数量阈值 N3，触控屏对持握区域不实施操 作。对于超过信号阈值第 j行的电极线上，还存在着一个与超过信号阈值的列电极线 e 的交叉点， 并且列电极线 e 附近触控信号超过信号阈值相邻的列电极线数量小于持握 数量阈值 N3、 而大于触压数量阈值 N2; 触控屏以列电极线 e为被压列电极线， 以行电 极线数量 j与被压列电极线 e的交叉点定位为触压点。  It is found that the number of row electrode lines (j-i+1) between the row electrode lines i, j exceeding the signal threshold and the number of column electrode lines (g-f+1) between the column electrode lines f, g are both More than the grip number threshold N3, the touch screen does not perform an operation on the grip area. For the electrode line exceeding the jth row of the signal threshold, there is also a crossing point with the column electrode line e exceeding the signal threshold, and the number of column electrode lines adjacent to the signal threshold adjacent to the column electrode line e is less than The threshold value N3 is greater than the threshold number of touches N2; the touch screen uses the column electrode line e as the pressed electrode line, and the intersection of the number of row electrode lines j and the pressed electrode line e is positioned as a contact point.
这样就检测出触控屏上具有一个持握区域和一个触压点， 也就是检测到手掌在触 控屏上的支撑区域和食指触压点； 这样触控屏可以对定位出的食指触压点实施触压提 示性或功能性操作， 而不对触控屏上手掌的支撑区域进行任何操作。 以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明， 不能认定 本发明的具体实施只局限于这些说明。对于本发明所属技术领域的普通技术人员来说， 在不脱离本发明构思的前提下， 还可以做出若干简单推演或替换， 都应当视为属于本 发明的保护范围。  In this way, it is detected that the touch screen has a holding area and a touch point, that is, the support area of the palm on the touch screen and the touch point of the index finger are detected; thus the touch screen can touch the positioned index finger. The point is implemented by a touch-sensitive or functional operation without performing any operation on the support area of the palm of the touch screen. The above is a further detailed description of the present invention in connection with the specific preferred embodiments, and the specific embodiments of the invention are not limited to the description. It will be apparent to those skilled in the art that the present invention may be practiced without departing from the spirit and scope of the invention.

Claims

权 利 要 求 书 Claim
1、 一种触控屏的信号处理方案， 所述触控屏具有基板和触控电路， 在基板上设置 有不少于两组分别有 m条行电极线和 n条列电极线的电极组， 其中 m和 n是大于 2的 自然数； 行列两组间电极线相互交叉， 同组内各条电极线互不相交； 组内各条电极线 的引出端， 可以是设置在相同方向， 也可以是设置在不同方向， 也可以是在电极线两 个不同方向都设置引出端； 所述的电极线引出端， 是指电极线从触控区域延伸向触控 区域外， 在触控区域边界上的端点； 触控电路具有触控激励源和触控信号检测电路； 行电极组和列电极组的各条电极线连接触控电路， 在触控电路工作的时段中， 触控激 励源对两组电极线或对同组内多于两条电极线同时施加有触控激励信号， 触控信号检 测电路同时或分时检测各电极线上的触控信号， 来探测各电极线是否被触碰； 其特征 在于： A signal processing scheme for a touch screen, the touch screen having a substrate and a touch circuit, wherein the substrate is provided with not less than two sets of electrode groups each having m row electrode lines and n column electrode lines Where m and n are natural numbers greater than 2; the electrode lines of the two rows intersect with each other, and the electrode lines of the same group do not intersect each other; the leading ends of the electrode lines in the group may be set in the same direction, or It is disposed in different directions, or may be arranged in two different directions of the electrode line; the electrode line leading end means that the electrode line extends from the touch area to the outside of the touch area, on the boundary of the touch area The touch circuit has a touch excitation source and a touch signal detection circuit; each electrode line of the row electrode group and the column electrode group is connected to the touch circuit, and during the working period of the touch circuit, the touch excitation source is two The electrode line or the pair of electrode lines in the same group simultaneously apply a touch excitation signal, and the touch signal detection circuit detects the touch signals on each electrode line at the same time or in a time-sharing manner to detect whether each electrode line is touched. Touch; it is characterized by:
行电极组和列电极组中的一者或两者上有多个可能触控定位点时， 触控电路通过 比较多个可能触控定位点所在的行或列电极线上触控信号的时间特征或幅值特征， 来 确定多个可能触控定位点中的真实触控定位点； 所述触控定位点是指， 触控物触摸或 触压触控屏时， 在触控屏触碰范围内的一个代表性位置坐标点； 所述可能触控定位点 是指， 所在的行列电极线上的触控信号都满足触控定位条件的触控定位点； 所述真实 触控定位点是指， 所检测到的多个可能触控定位点中具有真实触控物的触控定位点。  When there are multiple possible touch positioning points on one or both of the row electrode group and the column electrode group, the touch circuit compares the time of the touch signals on the row or column electrode lines where the plurality of possible touch positioning points are located. The feature or the amplitude feature is used to determine a real touch positioning point among the plurality of possible touch positioning points; the touch positioning point refers to the touch screen touch when the touch object touches or touches the touch screen a representative position coordinate point in the range; the possible touch positioning point is a touch positioning point where the touch signals on the row and column electrode lines satisfy the touch positioning condition; the real touch positioning point is The touch location point of the detected plurality of possible touch positioning points having a real touch object.
2、 根据权利要求 1所述的触控屏的信号处理方案， 其特征是： 所述触控屏是数字 电容式触控屏或显示器式触控屏。  2. The signal processing scheme of the touch screen according to claim 1, wherein: the touch screen is a digital capacitive touch screen or a display type touch screen.
3、 根据权利要求 1所述的触控屏的信号处理方案， 其特征在于：  3. The signal processing scheme of the touch screen according to claim 1, wherein:
所述通过比较多个可能触控定位点所在的行或列触控电极线上的触控信号的时间 特征， 来确定可能触控定位点中的真实触控定位点， 是通过比较多个可能触控定位点 所在行或列触控电极线上触控信号产生的时间顺序， 来确定多个可能触控定位点中的 真实触控定位点， 并对真实触控定位点上的触控实施功能性操作。  By comparing the time characteristics of the touch signals on the row or column touch electrode lines where the plurality of possible touch positioning points are located, the real touch positioning points in the possible touch positioning points are determined by comparing multiple possible The time sequence of the touch signals generated by the row or column of the touch positioning point to determine the real touch positioning points among the plurality of possible touch positioning points, and implement the touch on the real touch positioning points Functional operation.
4、 根据权利要求 3所述的触控屏的信号处理方案， 其特征在于：  4. The signal processing scheme of the touch screen according to claim 3, wherein:
所述通过比较多个可能触控定位点所在的行或列触控电极线上的触控信号产生的 时间顺序， 来确定多个可能触控定位点中的真实触控定位点， 是以新增的可能触控定 位点的行电极线和新增的可能触控定位点的列电极线的交叉点为新增真实触控定位 点； 或是以已具有可能触控定位点的行电极线和新增的可能触控定位点的列电极线的 交叉点为新增真实触控定位点； 或是以新增的可能触控定位点的行电极线和已具有可 能触控定位点的列电极线的交叉点为新增真实触控定位点。 Determining the real touch location points of the plurality of possible touch positioning points by comparing the time sequence generated by the touch signals on the row or column of the touch electrode lines where the plurality of possible touch positioning points are located is The intersection of the row electrode line of the possible touch positioning point and the column electrode line of the newly added touch positioning point is a new real touch positioning point; or a row electrode line having a possible touch positioning point And the addition of possible touch positioning points to the column electrode lines The intersection is a new real touch positioning point; or the intersection of the row electrode line of the newly added touch positioning point and the column electrode line having the possible touch positioning point is a new real touch positioning point.
5、 根据权利要求 1所述的触控屏的信号处理方案， 其特征在于：  5. The signal processing scheme of the touch screen according to claim 1, wherein:
所述通过比较多个可能触控定位点所在的行或列触控电极线上的触控信号的幅值 特征， 来确定多个可能触控定位点中的真实触控定位点， 是通过比较不同行或不同列 触控电极线上触控信号的大小， 或通过比较同一行或同一列电极线上不同引出端上触 控信号的大小， 或通过拟合一条触控电极线上触控信号的大小， 来判断多个可能触控 定位点中的真实触控定位点， 并对真实触控定位点上的触控实施功能性操作。  The comparison between the amplitude characteristics of the touch signals on the row or column touch electrode lines where the plurality of possible touch positioning points are located to determine the real touch positioning points among the plurality of possible touch positioning points is compared by comparing The size of the touch signal on the touch electrode line of different rows or columns, or by comparing the size of the touch signal on different terminals of the same row or the same column of electrodes, or by fitting a touch signal on a touch electrode line The size of the touch control point is determined by a plurality of possible touch points, and the touch operation on the touch point is implemented.
6、 根据权利要求 5所述的触控屏的信号处理方案， 其特征在于：  6. The signal processing scheme of the touch screen according to claim 5, wherein:
所述通过比较不同行或不同列触控电极线上触控信号的大小， 来判断多个可能触 控定位点中的真实触控定位点， 是指在互不相交的同组电极线上， 具有同向引出端的 触控电极线间， 通过比较不同触控电极线上触控信号的大小， 来判断真实触控点在触 控电极线上的位置； 触控信号大的触控电极线的触控点， 较触控信号小的触控电极线 的触控点， 更靠近触控电极线的引出端。  The comparing the size of the touch signals on the touch electrode lines of different rows or different columns to determine the real touch positioning points among the plurality of possible touch positioning points refers to the same set of electrode lines that do not intersect each other. The position of the touch point on the touch electrode line is compared between the touch electrode lines having the same direction of the touch electrode; the position of the touch point on the touch electrode line is determined by the touch line; The touch point is a touch point of the touch electrode line smaller than the touch signal, and is closer to the lead end of the touch electrode line.
7、 根据权利要求 5所述的触控屏的信号处理方案， 其特征在于：  7. The signal processing scheme of a touch screen according to claim 5, wherein:
所述通过比较不同行或不同列触控电极线上触控信号的大小， 来判断多个可能触 控定位点中的真实触控定位点， 是指在互不相交的同组电极线上， 具有不同向引出端 的相邻触控电极线间， 比较相邻触控电极线上不同向引出端触控信号的大小， 来判断 真实触控点在触控电极线上的位置； 触控点更靠近触控信号较大的触控电极线的引出 端。  The comparing the size of the touch signals on the touch electrode lines of different rows or different columns to determine the real touch positioning points among the plurality of possible touch positioning points refers to the same set of electrode lines that do not intersect each other. Comparing the sizes of the touch signals of the different touch terminals on the adjacent touch electrodes on the adjacent touch electrodes with different lead terminals to determine the position of the real touch points on the touch electrode lines; Near the leading end of the touch electrode line with a large touch signal.
8、 根据权利要求 5所述的触控屏的信号处理方案， 其特征在于：  8. The signal processing scheme of the touch screen according to claim 5, wherein:
所述通过比较同一行或同一列触控电极线上触控信号的大小， 来判断多个可能触 控定位点中的真实触控定位点， 是指对于两端都具有引出端的触控电极线， 比较触控 电极线上不同引出端触控信号的大小， 来判断真实触控点在触控电极线上的位置； 触 控点更靠近触控电极线上触控信号较大的引出端。  The comparison of the size of the touch signal on the same row or the same column of the touch electrode line to determine the true touch positioning point among the plurality of possible touch positioning points refers to the touch electrode line having the leading end for both ends Comparing the size of the touch signals on different touch terminals on the touch electrode line to determine the position of the real touch point on the touch electrode line; the touch point is closer to the lead end of the touch signal on the touch electrode line.
9、 根据权利要求 5所述的触控屏的信号处理方案， 其特征在于：  9. The signal processing scheme of a touch screen according to claim 5, wherein:
所述通过拟合一条触控电极线上触控信号的大小， 来判断多个可能触控定位点中 的真实触控定位点， 是指以触控信号超过信号阈值的触控电极线与该触控电极线的交 叉点为可能触控定位点， 通过所有可能触控定位点的不同组合， 来拟合该触控电极线 触控信号的大小， 再与该触控电极线实际测量到的触控信号大小比较， 来判断该触控 电极线上的一个或多个真实触控定位点。 By fitting the size of the touch signal on one touch electrode line to determine the real touch positioning point among the plurality of possible touch positioning points, the touch electrode line with the touch signal exceeding the signal threshold is The intersection of the touch electrode lines is a possible touch positioning point, and the size of the touch signal of the touch electrode line is fitted by different combinations of all possible touch positioning points, and then actually measured with the touch electrode line. The touch signal size is compared to determine the touch One or more real touch points on the electrode line.
10、 根据权利要求 3或 5所述的触控屏的信号处理方案， 其特征在于：  The signal processing scheme of the touch screen according to claim 3 or 5, characterized in that:
所述对真实触控定位点上的触控实施功能性操作， 包括对一个真实触控定位点在 预设时间范围内的触碰和移动的响应， 所述响应是执行 "选择"或 "拖动"或 "书写" 功能的操作。  Performing a functional operation on the touch on the real touch location point includes a response to a touch and move of a real touch location point within a preset time range, the response being a "select" or "drag" The operation of the "or" writing function.
11、 根据权利要求 3或 5所述的触控屏的信号处理方案， 其特征在于：  The signal processing scheme of the touch screen according to claim 3 or 5, characterized in that:
所述对真实触控定位点上的触控实施功能性操作， 包括对多个真实触控定位点在 预设时间范围内的相对移动的响应， 所述响应是执行 "选择"或 "拖动"或 "书写" 或 "放大"或 "縮小"或 "旋转"功能的操作。  Performing a functional operation on the touch on the real touch positioning point, including a response to a relative movement of the plurality of real touch positioning points within a preset time range, wherein the response is to perform a "select" or "drag" "Or" the operation of "writing" or "zooming in" or "zooming out" or "rotating" functions.
12、 一种触控屏的信号处理方案， 所述触控屏具有基板和触控电路， 在基板上设 置有不少于两组分别有 m条行电极线和 n条列电极线的电极组， 其中 m和 n是大于 2 的自然数； 行列两组间电极线相互交叉， 同组内各电极线互不相交； 组内各电极线的 引出端可以是设置在各电极线的相同方向， 也可以是设置在各电极线的不同方向； 触 控电路具有触控激励源和触控信号检测电路； 行电极组和列电极组的各条电极线连接 触控电路， 在触控电路工作的时段中， 触控激励源对两组电极线或对同组内多于两条 电极线同时施加有触控激励信号， 触控信号检测电路同时或分时检测各电极线上的触 控信号， 来探测各电极线是否被触碰； 其特征在于：  12. A signal processing solution for a touch screen, the touch screen having a substrate and a touch circuit, wherein the substrate is provided with not less than two sets of electrode groups each having m row electrode lines and n column electrode lines Where m and n are natural numbers greater than 2; the electrode lines of the two rows intersect with each other, and the electrode lines in the same group do not intersect each other; the lead ends of the electrode lines in the group may be disposed in the same direction of each electrode line, The touch circuit has a touch excitation source and a touch signal detection circuit; the electrode lines of the row electrode group and the column electrode group are connected to the touch circuit, and the touch circuit works. The touch excitation source simultaneously applies a touch excitation signal to two sets of electrode lines or more than two electrode lines in the same group, and the touch signal detection circuit detects the touch signals on each electrode line simultaneously or in a time-sharing manner. Detecting whether each electrode line is touched;
通过一条触控电极线上触控信号大小与预设的信号阈值比较， 或通过触控电极线 上触控信号大小超过信号阈值的相邻触控电极线数与预设的数量阈值比较， 来判断真 实触控定位点上的触碰力度， 根据触碰力度实施触摸或触压的功能性操作。  Comparing the size of the touch signal on a touch electrode line with a preset signal threshold, or comparing the number of adjacent touch electrode lines whose touch signal size exceeds the signal threshold on the touch electrode line is compared with a preset number threshold. Determine the touch force on the real touch positioning point, and perform the functional operation of touch or touch according to the touch force.
13、 根据权利要求 12所述的触控屏的信号处理方案， 其特征在于：  13. The signal processing scheme of a touch screen according to claim 12, wherein:
所述触控屏对于各触控电极线设置两个信号阈值， 第一信号阈值小于第二信号阈 值； 当触控电极线上触控信号超过第一信号阈值又小于第二信号阈值时， 触控屏以触 控信号超过第一信号阈值又小于第二信号阈值的触控电极线为被摸电极线， 将行被摸 电极线和列被摸电极线的交叉点定位为触摸点； 当被触的触控电极线上触控信号再超 过第二信号阈值时， 触控屏以触控信号超过第二信号阈值的触控电极线为被压电极线， 以行被压电极线和列被压电极线的交叉点定位为触压点。  The touch screen is configured with two signal thresholds for each touch electrode line, and the first signal threshold is smaller than the second signal threshold; when the touch signal on the touch electrode line exceeds the first signal threshold and is smaller than the second signal threshold, the touch The control panel uses the touch electrode line whose touch signal exceeds the first signal threshold and is smaller than the second signal threshold as the touched electrode line, and positions the intersection of the line touched electrode line and the column touched electrode line as a touch point; When the touch signal on the touched electrode line exceeds the second signal threshold, the touch screen uses the touch electrode line whose touch signal exceeds the second signal threshold as the pressed electrode line, and the pressed electrode line and The intersection of the columns of pressed electrode lines is positioned as a point of contact.
14、 根据权利要求 12所述的触控屏的信号处理方案， 其特征在于：  14. The signal processing scheme of a touch screen according to claim 12, wherein:
所述触控屏对于各触控电极线设置一个信号阈值， 并设置触控信号超过信号阈值 的相邻触控电极线数的数量阈值； 所设置的数量阈值可以是一个也可以是多个； 多个 的数量阈值可以分别是触摸数量阈值、 触压数量阈值和持握数量阈值， 持握数量阈值 大于触压数量阈值， 触压数量阈值大于等于触摸数量阈值。 The touch screen sets a signal threshold for each touch electrode line, and sets a threshold value of the number of adjacent touch electrode lines whose touch signal exceeds the signal threshold; the set number threshold may be one or more; Multiple The quantity threshold may be a touch quantity threshold, a touch quantity threshold, and a grip quantity threshold, respectively, the grip quantity threshold is greater than the touch quantity threshold, and the touch quantity threshold is greater than or equal to the touch quantity threshold.
15、 根据权利要求 14所述的触控屏的信号处理方案， 其特征在于：  15. The signal processing scheme of a touch screen according to claim 14, wherein:
当触控基板上触控信号超过信号阈值的相邻触控电极线数多于触摸数量阈值少于 触压数量阈值时， 触控屏以触控信号超过信号阈值的触控电极线为被摸电极线， 将行 被摸电极线和列被摸电极线的交叉点定位为触摸点； 当触控信号超过信号阈值的相邻 触控电极线数多于触压数量阈值少于持握数量阈值时， 触控屏以触控信号超过信号阈 值的触控电极线为被压电极线， 将行被压电极线和列被压电极线的交叉点定位为触压 点； 当触控信号超过信号阈值的相邻触控电极线数多于持握数量阈值时， 触控屏以触 控信号超过信号阈值的触控电极线为被持电极线， 将行被持电极线和列被持电极线的 交叉点定位为持握点。  When the number of adjacent touch electrodes on the touch substrate exceeds the signal threshold is greater than the threshold of the touch threshold, the touch screen is touched by the touch electrode line whose touch signal exceeds the signal threshold. The electrode line positions the intersection of the row of the touched electrode line and the column of the touched electrode line as a touch point; when the touch signal exceeds the signal threshold, the number of adjacent touch electrode lines is more than the threshold number of the touch voltage is less than the threshold of the holding amount When the touch screen uses the touch electrode line whose touch signal exceeds the signal threshold as the pressed electrode line, the intersection of the line pressed electrode line and the column pressed electrode line is positioned as the touch point; When the number of adjacent touch electrode lines whose signal exceeds the signal threshold is greater than the threshold of the holding number, the touch screen uses the touch electrode line whose touch signal exceeds the signal threshold as the held electrode line, and the row is held by the electrode line and the column The intersection of the electrode wires is positioned as a grip point.
16、 根据权利要求 13或 14或 15所述的触控屏的信号处理方案， 其特征在于： 所述触控屏对定位出的触摸点实施触摸提示性操作， 所述触控屏对定位出的触压 点实施触压提示性或功能性操作， 所述触控屏对定位出的持握点不实施操作。  The signal processing scheme of the touch screen according to claim 13 or 14 or 15, wherein: the touch screen performs a touch prompt operation on the located touch point, and the touch screen pair is positioned The touch point performs a touch-sensitive or functional operation, and the touch screen does not perform an operation on the positioned grip point.
17、 根据权利要求 16所述的触控屏的信号处理方案， 其特征在于：  17. The signal processing scheme of a touch screen according to claim 16, wherein:
所述触控屏对定位出的触摸点所实施的触摸提示性操作， 是让显示画面或显示画 面的局部在被触摸后较被触摸前发生改变； 所述触控屏对定位出的触压点所实施的触 压提示性操作， 是让显示画面或显示画面的局部在被触压后较被触摸前发生改变， 或 是让显示画面或显示画面的局部在被触压后较被触摸后、 被触压前发生改变。  The touch prompting operation performed by the touch screen on the positioned touch point is such that a part of the display screen or the display screen is changed before being touched; the touch screen is positioned to touch The touch-pressing operation implemented by the point is to change the part of the display screen or the display screen before being touched, or to make the part of the display screen or the display screen touched after being touched. Changed before being touched.
18、 根据权利要求 16所述的触控屏的信号处理方案， 其特征在于：  18. The signal processing scheme of a touch screen according to claim 16, wherein:
所述触控系统对定位出的触压点所实施的触压功能性操作， 包括有对一个真实触 控定位点在预设时间范围内的触压和移动的响应， 所述响应是执行 "选择"或 "拖动" 或 "书写"或 "放大"或 "縮小"或 "旋转"功能的操作。  The touch-pressure functional operation performed by the touch system on the positioned touch pressure point includes a response to a touch and movement of a real touch positioning point within a preset time range, and the response is performed. Select the "or" drag or "write" or "zoom in" or "zoom out" or "rotate" function.
19、 根据权利要求 16所述的触控屏的信号处理方案， 其特征在于：  19. The signal processing scheme of a touch screen according to claim 16, wherein:
所述触控屏对触压点在执行 "书写"操作时， "书写"笔画的粗细是随触控信号的 大小而改变， 或是随触控信号超过信号阈值的相邻触控电极线数量的多少而改变； 触 控信号愈大或超过信号阈值的相邻触控电极线数量愈多， "书写"笔画愈粗。  When the touch screen performs a "writing" operation on the touch point, the thickness of the "writing" stroke changes according to the size of the touch signal, or the number of adjacent touch electrode lines that exceed the signal threshold with the touch signal. The number of adjacent touch electrodes is larger as the touch signal is larger or exceeds the signal threshold, and the "writing" stroke is thicker.
20、 根据权利要求 1或 12所述的触控屏的信号处理方案， 其特征在于： 所述触控屏通过比较多个可能触控定位点所在不同行或不同列电极线之间触控信 号的变化量或变化率， 来确定具有可能性触控定位点所在电极线上的真实触控定位点。 The signal processing scheme of the touch screen according to claim 1 or 12, wherein: the touch screen compares touch signals between different rows or different column electrode lines of a plurality of possible touch positioning points. The amount of change or rate of change to determine the true touch location on the electrode line where the touch point is located.
21、 根据权利要求 3或 5或 13或 14所述的触控屏的信号处理方案， 其特征在于: 所述触控屏当触控物在触控屏上每一个触碰范围内， 有多个电极线交叉点满足有 效触控定位条件时， 是以其中的一个电极线交叉点为触控定位点； 特别是以满足有效 触控定位条件的多个电极线交叉点中的中心电极线交叉点为触控定位点； 也可以是以 非电极线交叉点的位置为触控定位点。 The signal processing scheme of the touch screen according to claim 3 or 5 or 13 or 14, wherein: the touch screen has a touch object within each touch range of the touch screen, When the intersection of the electrode lines satisfies the effective touch positioning condition, one of the electrode line intersections is used as the touch positioning point; in particular, the center electrode line intersection among the plurality of electrode line intersections satisfying the effective touch positioning condition The point is the touch positioning point; or the position of the non-electrode line intersection is the touch positioning point.
PCT/CN2010/073972 2010-06-13 2010-06-13 Signal processing scheme for touch control screen WO2011156953A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2010/073972 WO2011156953A1 (en) 2010-06-13 2010-06-13 Signal processing scheme for touch control screen
CN2010800017002A CN102439545A (en) 2010-06-13 2010-06-13 Signal processing scheme for touch control screen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2010/073972 WO2011156953A1 (en) 2010-06-13 2010-06-13 Signal processing scheme for touch control screen

Publications (1)

Publication Number Publication Date
WO2011156953A1 true WO2011156953A1 (en) 2011-12-22

Family

ID=45347627

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2010/073972 WO2011156953A1 (en) 2010-06-13 2010-06-13 Signal processing scheme for touch control screen

Country Status (2)

Country Link
CN (1) CN102439545A (en)
WO (1) WO2011156953A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103902105A (en) * 2012-12-28 2014-07-02 北京汇冠新技术股份有限公司 Touch recognition method and touch recognition system for infrared touch screen
CN104020868A (en) * 2013-02-28 2014-09-03 联想(北京)有限公司 Information processing method and electronic equipment
CN104484076A (en) * 2014-12-31 2015-04-01 深圳市华星光电技术有限公司 Self-capacitance touch sensing device, touch point positioning method and display equipment

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103926729B (en) * 2013-12-31 2017-12-22 上海天马微电子有限公司 A kind of array base palte, color membrane substrates, touch control display apparatus and its driving method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1963736A (en) * 2005-11-12 2007-05-16 深圳市联思精密机器有限公司 Digifax touch panel display
CN101122838A (en) * 2006-08-13 2008-02-13 陈其良 Active touch control panel display
JP2010002949A (en) * 2008-06-18 2010-01-07 Sony Corp Touch panel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1963736A (en) * 2005-11-12 2007-05-16 深圳市联思精密机器有限公司 Digifax touch panel display
CN101122838A (en) * 2006-08-13 2008-02-13 陈其良 Active touch control panel display
JP2010002949A (en) * 2008-06-18 2010-01-07 Sony Corp Touch panel

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103902105A (en) * 2012-12-28 2014-07-02 北京汇冠新技术股份有限公司 Touch recognition method and touch recognition system for infrared touch screen
CN104020868A (en) * 2013-02-28 2014-09-03 联想(北京)有限公司 Information processing method and electronic equipment
CN104020868B (en) * 2013-02-28 2017-09-01 联想(北京)有限公司 The method and electronic equipment of a kind of information processing
CN104484076A (en) * 2014-12-31 2015-04-01 深圳市华星光电技术有限公司 Self-capacitance touch sensing device, touch point positioning method and display equipment
CN104484076B (en) * 2014-12-31 2018-02-13 深圳市华星光电技术有限公司 Self-capacitance touch-sensing device and touch independent positioning method, display device

Also Published As

Publication number Publication date
CN102439545A (en) 2012-05-02

Similar Documents

Publication Publication Date Title
TWI447632B (en) Driving frequency selection method for capacitive multi-touch system
CN101887323B (en) Two-dimensional touch sensors
TWI502415B (en) System and method of driving a touch screen
KR101470903B1 (en) Touch screen controller and method for controlling thereof
US10025434B2 (en) Touch system, touch panel, and display device
CN106873814A (en) A kind of control method and electronic equipment
US20120062482A1 (en) Method of scanning touch on touch screen
TW201030572A (en) Multi-touch tracking
CN104793820A (en) Self-capacitive touch screen structure, embedded touch screen and liquid crystal display
WO2010130111A1 (en) Digital capacitive touch control screen
TW201416929A (en) Touch panel device with reconfigurable sensing points and its sensing method
US9612704B2 (en) Apparatus and method for sensing touch
CN104793819A (en) Self-capacitive touch screen structure, embedded touch screen and liquid crystal display
WO2011156953A1 (en) Signal processing scheme for touch control screen
TW201510828A (en) Method of recognizing touch
CN104571760B (en) Panel and its position of touch detection method with touch controllable function
TWI412983B (en) Detecting method of performing multi-touch on a capacitive touch panel
CN105630240A (en) Multi-point touch screen based on piezoelectric materials
CN206292748U (en) A kind of touch electrode structure, contact panel and touch control display apparatus
CN102855041B (en) A kind of monolayer multipoint capacitive touch screen
TW201516800A (en) Touch panel and electrode structure thereof
CN102650915A (en) Digital touch screen and touch positioning method thereof
TWM406771U (en) Signal processing structure of a touch screen
US9465478B2 (en) Driving algorithm on projected capacitance touch
TWI658384B (en) Touch panel and touch detection circuit

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 201080001700.2

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10853063

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 10853063

Country of ref document: EP

Kind code of ref document: A1