TW201316214A - Touch sensing method with interlacing driving scheme, touch sensing module and display - Google Patents

Abstract

A touch sensing method with interlacing driving scheme is provided. The touch sensing method is implemented in a sensing unit. The sensing unit is coupled to a plurality of parallel first lead lines. The feature of the touch sensing method resides in the steps of transmitting a sensing signal from at least one of the first leads and receiving the sensing signal from at least another one of the first leads to obtain a parameter value selected from an electric charge, a capacitance, a magnetic flux, an electromagnetic signal, a voltage, a current, or a frequency of the first lead, and computing a location, a distance, a height and the coordinate of a touching point of a touch pad which is touched by a user's finger according to the parameter value.

Description

Interlaced driving touch sensing method, touch sensing module and display

The invention relates to a sensing method, in particular to a touch sensing method applied to an interlaced driving of a touch sensing display.

A touch screen panel is a panel that allows a user to touch a finger or a stylus. The user can use the touch panel to write, draw, or borrow a picture. Commands and the like are executed by an icon in the screen, and the common touch panel is divided into an electromagnetic induction mode and a capacitive sensing mode.

For capacitive sensing mode displays, it is divided into Self Capacitance Sensing and Mutual Capacitance Sensing. Referring to FIG. 1 , a display 900 of a self-contained sensing system includes a plurality of first sensing lines 911 , a plurality of second sensing lines 912 interlaced with the first sensing lines 911 , and two coupled to the first sensing respectively. The sensing circuit 913 of the line 911 and the second sensing line 912, the sensing circuit 913 uses the same first sensing line 911 (or the same second sensing line 912) to transmit and receive detection signals to sense the same first sensing line 911. (or the same second sensing line 912) changes the current, frequency, and magnetic flux to know the position touched by the user's finger.

The mutual induction sensing circuit transmits the detection signal by using a first sensing line 911, and the second sensing line 912 of the other direction receives the detection signal to sense the position touched by the user's finger.

However, the present invention will provide another touch sensing method for interlaced driving and an interleaved driving touch sensing display for performing the sensing method to achieve more control of display screen and touch scanning.

Accordingly, it is an object of the present invention to provide another touch sensing method that is interleaved.

Therefore, the touch sensing method of the interleaved driving of the present invention is performed by a sensing unit of a touch sensing display, and the sensing unit is coupled to a plurality of first direction wires arranged side by side. The sensing method is characterized in that the sensing method is characterized in that Transmitting a detection signal from the at least one first direction wire and receiving the detection signal from the at least another first direction wire to sense the charge, capacitance, magnetic flux, electromagnetic induction, or voltage, current, Parameters such as frequency determine the position, distance, touch height, and touch point of the user's sense of change due to the finger touching the panel.

The sensing method can transmit and receive the detection signal in the following manners: (1) transmitting a detection signal from a first direction wire and receiving a detection signal from another first direction wire; (2) a wire from a first direction Transmitting the detection signal and receiving the detection signal from the remaining plurality of first direction wires; (3) transmitting the detection signal from the plurality of first direction wires, and receiving the detection signals from the remaining one of the first direction wires; (4) from the plurality of bars The one direction wire emits the detection signal and receives the detection signal from the remaining plurality of first direction wires. In the fourth aspect, the first direction conductor that emits the detection signal and the first direction conductor that receives the detection signal may be at least partially interlaced, adjacent, and spaced apart from each other. Therefore, the above four methods can sense the charge, capacitance, magnetic flux, electromagnetic induction, or voltage, current, frequency and other parameters of the first direction wire, and emit the first direction wire of the detection signal and the first direction of receiving the detection signal. The wires may be adjacent to each other or may be separated by at least one first direction wire to save scanning times and time.

In addition, the plurality of first direction wires may also be divided into at least four wire groups, and the sensing method may first transmit a detection signal from a first wire group, and receive a detection signal from a second wire group, and then from the second wire. The group transmits a detection signal, and receives a detection signal from a third conductor group, and then transmits a detection signal from the third conductor group, and receives a detection signal from a fourth conductor group; or, first transmits from a first conductor group Detecting a signal, and receiving a detection signal from a second group of conductors, and then transmitting a detection signal from a third group of conductors, and receiving a detection signal from a fourth group of conductors; or, first transmitting a detection signal from a first group of conductors And receiving a detection signal from a third group of conductors, and then transmitting a detection signal from a second group of conductors, and receiving a detection signal from a fourth group of conductors, so that the position and distance at which the sensing line changes can be numerically determined. , touch height and touch point.

In addition, the at least four wire group, wherein the first wire group, the second wire group, the third wire group, and the first direction wire of the fourth wire group may partially overlap, overlap or not overlap .

In addition, another object of the present invention is to provide a touch sensing module capable of performing the above-described interleaved driving touch sensing method.

The interleaved driving touch sensing module includes a plurality of first direction wires that are mutually juxtaposed and extending in a first direction, and a sensing unit coupled to the first direction wires, the sensing unit is at least A first direction wire emits a detection signal, and receives the detection signal from at least another first direction wire to sense a charge, a capacitance, a magnetic flux, an electromagnetic induction, or a voltage, a current, a frequency, etc. of the path through which the detection signal passes. parameter.

The touch sensing module further includes a plurality of second direction wires coupled to the sensing unit, the second direction wires are mutually juxtaposed and extending in a second direction intersecting the first direction, the second direction wires and The first direction wires are interlaced at an angle but not electrically connected, and the sensing unit further transmits another detection signal from the at least one second direction wire, and receives the detection signal from the at least another second direction wire to sense the detection signal. The path of charge, capacitance, magnetic flux, electromagnetic induction, or voltage, current, frequency and other parameters. In more detail, the first direction wires or/and the second direction wires may be co-structured wires on an active array, and may include a plurality of data lines, a plurality of gate lines, and a total of Electrode lines, auxiliary lines, bias lines, read lines, and the like.

In addition, the first direction wire that emits the detection signal has a first image and structure, and the first direction wire for detecting the detection signal has a second image, a structure, the first image, the structure, and the second The image and structure may be strips, diamonds, squares, etc., and the two may be the same or different.

The present invention further provides an interlaced touch sensing display comprising a display module for displaying a picture and the touch sensing module.

In addition, the display module includes a common electrode layer, and the display further includes a grounding switch coupled between the common electrode layer and the ground, or a large conductor or a large capacitive object, and the control module receives the detection signal at the sensing unit. When the control grounding switch is not turned on, the common electrode layer is not grounded, or a large conductor or a large capacitive object; when the control module displays the picture on the display module, the grounding switch is controlled to be turned on to form a common electrode ground, or a large conductor, or a large Capacitive object.

In addition, the touch-sensing display of the interleaved driving of the present invention can also be a Fringe Filed Switching (FFS) architecture or an In Plan Switching (IPS) architecture. The touch sensing display includes a display for display. The display module of the screen, a touch sensing module and a control module coupled to the touch sensing module, the touch sensing module includes a plurality of first and second directional wires that are staggered and disjoint a sensing unit, an inductive conducting line, and a plurality of switching circuits coupled to the first direction wire, the second direction wire and the inductive conducting line, wherein the switching circuit is configured to enable the first direction A conducting state in which the wire (or the second direction wire) is electrically connected to the inductive conducting wire, and a non-conducting state in which the first direction wire (or the second direction wire) is electrically disconnected from the inductive conducting wire.

During an electromagnetic touch sensing, the control module turns on the switching circuit corresponding to the at least two first-directional wires, so that the two first-directional wires are electrically connected to the sensing conductive lines to form an electromagnetic sensing circuit; During the sensing period, the control module non-conducts the switching circuits, so that the sensing unit performs the above-mentioned interleaved driving touch sensing method to sense the charge, capacitance, magnetic flux, electromagnetic induction, or voltage of the sensing wires. Parameters such as current, frequency, and numerical calculations determine the position, distance, touch height, and touch point of the user's inductive change due to the finger touching the display module, thereby achieving the effect of the touch scan optimization control of the present invention.

In more detail, the inductive wires are common electrodes, and the switching circuits are disposed in a dummy pixel region.

The invention has the advantages that the present invention utilizes the original scanning line and the gate line, the data line, the auxiliary line, or the common electrode line, etc., as the sensing wire for sensing the touch position of the user, and is matched with at least one wire. Transmitting the detection signal, at least another wire receiving the detection signal to sense the charge, capacitance, magnetic flux, electromagnetic induction, or voltage, current, frequency and other parameters of the wire, and the control module switches according to the display cycle of the display module The opening and closing of the grounding switch can achieve the control of the display screen and the touch scanning optimization.

The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments of the invention.

Before the present invention is described in detail, it is noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to FIG. 2, a first preferred embodiment of the touch-sensing display of the interleaved driving of the present invention is a capacitive touch-sensitive display 100, which can be touched by a user via a finger ( Touch) to sense a signal to perform a character, draw, or execute an instruction by an icon in the screen. The touch-sensing display 100 includes a touch-sensing module 10, a display module 20 for displaying a screen, a control module 30 for controlling the display of the display module 20, and coupled to the touch-sensing module 10. And a black light 40 coupled to the control module 30 and configured to provide a light source. Of course, the touch sensitive display 100 can also be a liquid crystal display, an organic light emitting diode, an electrophoretic display, or an electrowetting display.

Referring to FIG. 3 , the touch sensing module 10 includes at least a plurality of first direction wires 1 , a plurality of second direction wires 2 , an insulating layer (which may also be a dielectric layer) 3 , and a sensing unit 4 . The first direction wire and the second direction wire are a common structure wire on the active array. In this embodiment, the first direction wire 1 is a data line and the number is M, and M is greater than one. A positive integer, and is represented by X ₁ ~X _M , the line width of each of the first direction wires 1 is 4 to 10 μm, and the spacing of the first direction wires 1 is 30 to 100 μm and are equidistantly side by side and one by one. The direction (ie longitudinal) extends. The second direction wire 2 is a gate line and the number is N, N is a positive integer greater than one, and is represented by Y ₁ ~Y _N , and the line width and each line of each second direction wire 2 The pitch of the second direction wires 2 is 4 to 10 μm and 30 to 100 μm, respectively, and the second direction wires 2 are equidistantly arranged side by side and extend in a second direction (ie, lateral direction) intersecting the first direction. The insulating layer 3 is located between the first direction wires 1 and the second direction wires 2, so that the second direction wires 2 and the first direction wires 1 are staggered but not electrically connected, and an M×N sensing matrix is formed. .

In particular, the first direction wire 1 is not limited to a data line, and the second direction wire 2 is not limited to a gate line. The first direction wire 1 may be a gate line and the second direction wire 2 may be a data line. Or in the architecture of a specific touch-sensitive display 100, such as a low temperature polysilicon liquid crystal display (LTPS-TFT-LCD) or an active matrix organic light emitting diode (AMOLED) display. Etc., the first direction wire 1 and the second direction wire 2 may be or modified from a power line, a read line, a bias line, a control line, a partial pixel circuit, a partial auxiliary circuit, a partial auxiliary pixel, The auxiliary wire, the compensation circuit, the signal control line of the compensation circuit element, the auxiliary line, and the like are not limited to the embodiment.

Referring to FIG. 2 and FIG. 3, the sensing unit 4 includes a first sensing circuit 41 coupled to one end of the first direction wires 1 and a second end coupled to one end of the second direction wires 2. The sensing circuit 42 and the first sensing circuit 41 and the second sensing circuit 42 are configured to transmit and receive a detection signal (or a stimulus signal) to sense the charge, capacitance, magnetic flux, and electromagnetic path of the path through which the detection signal passes. Induction, or voltage, current, frequency and other parameters.

The control module 30 includes a first driving circuit 301 coupled to the other end of the first direction wires 1 , a second driving circuit 302 coupled to the other end of the second direction wires 2 , and a coupling Connected to the control circuit 303 of the sensing unit 4, the first driving circuit 301 and the second driving circuit 302 are respectively a source driver and a gate driver, and the operation and functions thereof are the same as those of the prior art. Therefore, do not add more details. The control circuit 303 is used to control the sensing unit 4 and other electronic components to operate, and the detailed control thereof is described later.

Referring to FIG. 4, the display module 20 includes a first polarizer 201, a first substrate 202, a pixel layer 203, and a liquid crystal layer 204. A common electrode layer 205, a color filter 206, a second substrate 207 and a second polarizer 208, and a grounding switch 209 coupled between the common electrode layer 205 and the ground. .

In the embodiment, the first direction wire 1 and the second direction wire 2 are disposed on the pixel array layer 203. The grounding switch 209 is opened and closed under the control of the control circuit 303 to switch the common electrode layer 205 between floating and ground. It is particularly emphasized that the so-called "grounding" is not limited to receiving ground, but may be coupled to a large capacitor, a large conductor or a metal casing.

In addition, the structure of the display module 20 of the present embodiment is not limited to the above, and may be an Organic Light Emitting Diode (OLED) panel or an active matrix organic light emitting diode (Active Matrix Organic Light). Emitting Diode, AMOLED) panel, transmissive, reflective or partially transmissive partially reflective display panels. The first direction wire 1 and the second direction wire 2 are not limited to being disposed on the pixel array layer 203, and may be disposed on the inner side or the outer side of the first substrate 202 or on the inner side or the outer side of the second substrate 207. Change the position of the layout by the type of panel.

Referring to FIG. 3, FIG. 4 and FIG. 5, FIG. 5 is an interlaced driving method of the touch sensing display 100 according to the embodiment. The driving method is a display module 20 displaying a frame as an example, and the display mode is displayed. The period in which the group 20 displays a frame can be divided into a display period and a sensing period.

First, when the display module 20 is in the display period, the control circuit 303 first switches the grounding switch 209 in the display module 20 to be in an on state, so that the common electrode layer 205 is grounded (step S10), and then the first driving circuit 301 and The second driving circuit 302 operates and drives the display module 20 to display a picture (step S20), so that the noise interference of the common electrode layer 205 can be avoided to obtain better picture quality. When the display module 20 enters the sensing period, the control circuit 303 first switches the grounding switch 209 to a non-conduction state, so that the common electrode layer 205 is floating (step S30), and then the sensing unit 4 is directed to each of the first directions. The wire 1 and the second direction wire 2 are subjected to touch scanning (step S40).

In other words, the control module 30 switches the opening and closing of the grounding switch 209 according to the display period of the display module 20 to achieve control of the display screen and touch scan optimization, and during the sensing period of the display module 20 during the sensing period. Control circuit 303 also turns backlight 40 off (or darkens). In addition, in the embodiment, the display module 20 alternately and repeatedly switches between the display period and the sensing period to display the screen and the touch sensing, that is, when the touch sensing display 100 operates, it continuously The above steps S10 to S40 are repeatedly performed, so that the grounding switch 209 can float or ground the common electrode layer 205 in accordance with different periods.

However, in step S40, the touch sensing method of the interleaved driving performed by the sensing unit 4 for each of the first direction wire 1 and the second direction wire 2 is mainly from at least one first direction wire 1 (or The two-directional wire 2) emits a detection signal and receives the detection signal from at least another first direction wire 1 (or the second direction wire 2) to sense the first direction wire 1 (or the second direction wire 2) Charge, capacitance, magnetic flux, electromagnetic induction, or voltage, current, frequency and other parameters.

The method for sensing the touch position of the user's finger may be as follows. Referring to FIG. 3, the first sensing mode is that the sensing unit 4 selects a first direction wire 1 (for example, X ₁ ) to emit a detection signal. Receiving the detection signal from the other first direction wire 1 (for example, X ₂ ), the signal change of the first direction wire X ₂ can be sensed, and then the same direction is followed, and the wire X _{2 is} emitted from the first direction. signal, from a first direction wires ₃ receives the detection signal X so, all sensing signals to a first change of direction wires 1. In other words, at a first time, the sensing unit 4 will detect _a signal emitted from the first wire direction X, and a direction from the first wire receives the detection signal X _2, and then at a second time, the sensing unit will be from 4 The first direction wire X ₂ emits a detection signal, and receives the detection signal from the first direction wire X ₃ , so as to sequentially sense the charge, capacitance, magnetic flux, electromagnetic induction, or voltage, current, and current of each first direction wire 1 . The frequency and the like, until an M-1th time, the detection signal is transmitted from the first direction wire X _M-1 , and the detection signal is received from the first direction wire X _M .

The second sensing mode is that the sensing unit 4 selects a first direction wire 1 (for example, X ₁ ) to emit a detection signal, and receives the detection signal from the remaining plurality of first direction wires 1 (for example, X ₂ ~X ₅ ). Thus, the "single strip transmission, multiple strips" method can also sense the signal changes of all the first direction wires 1.

The third sensing mode is that the sensing unit 4 selects a plurality of first direction wires 1 (for example, X ₁ ~ X ₄ ) to emit detection signals, and receives the detection signals from the remaining first direction wires 1 (for example, X ₅ ). Thus, the "multiple transmissions, single reception" method can also sense the signal changes of all the first direction wires 1.

The fourth sensing mode is that the sensing unit 4 selects a plurality of first direction wires 1 (for example, X ₁ ~ X ₂ ) to emit detection signals, and from the remaining plurality of first direction wires 1 (for example, X ₃ ~ X ₄ ) Receiving the detection signal, in other words, the plurality of first direction wires 1 can be divided into a plurality of wire groups, and the sensing unit 4 can first select a first wire group (for example, X ₁ ~ X ₂ ) to emit a detection signal, and from the first The two wire groups (eg, X ₃ ~X ₄ ) receive the detection signal, and then transmit the detection signal from the second wire group, and receive the detection signal from a third wire group (eg, X ₅ ~X ₆ ), and then Transmitting a detection signal from the third group of conductors, and receiving a detection signal from a fourth group of conductors (eg, X ₇ ~X ₈ ); or, first selecting a first group of conductors (eg, X ₁ ~X ₂ ) to transmit Detecting a signal and receiving a detection signal from a second group of conductors (eg, X ₃ ~X ₄ ), and then transmitting a detection signal from a third group of conductors (eg, X ₅ ~X ₆ ), and from a fourth conductor group (e.g.: X ₇ ~ X ₈₎ receives the detection signal; or, first selecting a first wire group (for example: X ₁ ~ X ₂₎ detecting signals emitted And a third wire from the group: receiving (e.g., X ₅ ~ X ₆₎ detection signal, then again from a second wire group (e.g.: X ₃ ~ X ₄₎ detecting the emission signal, and from a fourth group of conductors (e.g. :X ₇ ~X ₈ ) Receive the detection signal, so the "multiple transmission, multiple reception" method can also sense the signal change of all the first direction wires 1. In addition, the at least four wire group, wherein the first wire group, the second wire group, the third wire group, and the first direction wire of the fourth wire group may partially overlap, overlap or not overlap .

The fifth sensing method and the fourth sensing method are the same as "multiple transmissions, multiple receptions". The difference is that the first direction wires 1 of the sensing unit 4 transmitting the detection signals and the receiving detection signals The first direction wires 1 are at least partially staggered with each other. For example, the sensing unit 4 selects the first direction wire X ₁ and the first direction wire X _{3 to} emit a detection signal, and selects the first direction wire X ₂ and the first direction wire X _{4 .} And the first direction wire X ₅ receives the detection signal, so that the signal change of all the first direction wires 1 can be sensed as well. In addition, referring to FIG. 6, the first direction wire 1 for transmitting the detection signal has a first image, and the first direction wire 1 for detecting the detection signal may have a second image, the first image and the first image. The second image may be various shapes or structures such as strips, diamonds, and squares, and the present embodiment is of a matrix type, and the shapes of the two may be the same or different.

Since the first direction wire 1 and the second direction wire 2 of the embodiment are disposed at a higher density (ie, the wire spacing is only 30 to 100 μm), the user touches the panel (display module 20) to cover a plurality of articles. The first direction wire 1 and the second direction wire 2, therefore, in the above various sensing modes, the first direction wire 1 (or the second direction wire 2) transmitting the detection signal and the first direction wire 1 receiving the detection signal (or The two-directional wires 2) are separated by at least one first-directional wire 1 (or the second-direction wire 2). For example, the sensing unit 4 selects the first-direction wire X _{1 to} emit a detection signal, and selects the first-direction wire X _{4 to} receive the detection. The signal is then transmitted from the first direction wire X _{4 to the} detection signal, the first direction wire X ₇ receives the detection signal and so on, and it is not necessary to sense the signal change of all the first direction wires 1 to save the scanning times and time. Similarly, the sensing unit 4 can calculate the position, distance, touch height, and touch point of the user's finger touching the display module 20. In addition, the above various sensing methods are also applicable to the sensing of the second direction wire 2, so no further description is made.

Furthermore, referring to FIG. 5, the common electrode layer 205 is floated before the sensing unit 4 performs touch scanning, and more specifically, to prevent the sensing unit 4 from being interfered by the common electrode layer 205 when receiving the detection signal. Therefore, the common electrode layer 205 can be floated before receiving the detection signal, that is, when the display module 20 is in the sensing period, the sensing unit 4 can first transmit the detection signal by using one of the above sensing modes, and then control. The circuit 303 switches the grounding switch 209 to a non-conducting state to float the common electrode layer 205, and then receives the detection signal, so that the effect of the touch scanning optimization control can be achieved.

Referring to FIG. 7 , the touch sensing display 100 of the present embodiment further includes a touch sensing module 10 , a display module 20 , a control module 30 , and a backlight 40 (the touch sensing module 10 is The control module 30 is omitted from FIG. 14 and has a housing 50 disposed therein. The housing 50 includes a protective panel 51 corresponding to the display module 20. In the embodiment, the protective panel 51 is an upper cover molding sheet ( The cover glass can be elliptical, approximately rectangular, polygonal, circular, etc., and its area is larger than the display area of the display module 20. The sensing unit 4 of the touch sensing module 10 is disposed on the protection panel. Between the 51 and the display module 20, or disposed on a side wall of the protection panel 51 away from the display module 20, or disposed in the protection panel 51 (the protection panel 51 can be a multi-layer structure) to reduce the touch-sensitive display The overall thickness of 100 reduces manufacturing costs.

Referring to FIG. 8 , a second preferred embodiment of the touch-sensing display of the interleaved driving of the present invention is shown. In this embodiment, the display module 20 is a pixel array layer 203 and a common electrode layer 205 ( FIG. 4 ). The Fringe Filed Switching (FFS) architecture is integrated in the same layer, and in this embodiment, a common electrode is used as the inductive wire 5 for touch scanning.

The overall structure of the touch-sensitive display 100 of the present embodiment is as shown in FIG. 2 , and includes a touch sensing module 10 , a display module 20 for displaying a screen, and a display module for controlling the display of the display module 20 . The control module 30 is coupled to the touch sensing module 10 and a backlight 40 coupled to the control module 30 for providing a light source. The touch sensing module 10 includes a plurality of first directional wires 1 and a second directional wire 2 that are staggered but not intersected with each other (only the first directional wire 1 is drawn in FIG. 8), a sensing unit 4, and an inductive conductive line. 6, and a plurality of switch circuits 7 respectively coupled to the first direction wire 1, the second direction wire 2 and the inductive conduction line 6, each switch circuit 7 is configured to enable the first direction wires 1 and The conductive state of the inductive conductive line 6 is electrically connected, and a non-conducting state that causes the first direction conductor 1 and the inductive conductive line 6 to be electrically disconnected.

Referring to FIG. 3, FIG. 4 and FIG. 8, the interleaved driving method of the touch sensing display 100 of the present embodiment is similar to that of the first preferred embodiment. The period in which the display module 20 displays a frame is also divided into a display period and a During the sensing period, the sensing period of the embodiment can be further divided into a capacitive touch sensing period and an electromagnetic touch sensing period. The control module 30 firstly sets the grounding switch 209 when the display module 20 is in the display period. Turning on, the common electrode layer 205 is grounded; and when the display module 20 enters the capacitive touch sensing period during sensing, the sensing unit 4 performs the sensing user's finger touch as described in the first preferred embodiment. The method of the position, that is, one of the five sensing modes, and the control module 30 cooperates with the sensing unit 4 to transmit and receive the sensing wire 5 of the detection signal to make the corresponding switching circuit 7 non-conductive, so that the sensing unit 4 senses the The electric charge, capacitance, magnetic flux, electromagnetic induction, or voltage, current, frequency and other parameters of the inductive wire 5 are numerically determined to determine the position, distance, and touch of the user when the finger touches the display module 20. And the degree of touch point, the touch scanning achieve optimal efficacy of the present invention the control.

During the electromagnetic touch sensing period, the control module 30 turns on the switch circuit 7 corresponding to the at least two first-directional wires 1 to electrically connect the two first-directional wires 1 to the inductive conductive line 6 to form an electromagnetic sensing circuit. The sensing unit 4 can transmit the detection signal from one of the first direction wires 1 and receive the detection signal from one of the first direction wires 1 to determine the position, distance, and touch height of the electromagnetic induction circuit change by numerical operation. And touch points. In more detail, in this embodiment, the first direction wires 1 (or the second direction wires 2) are divided into a plurality of wire groups, wherein each wire group includes at least two first direction wires 1 (or second direction wires 2) And the control module 30 sequentially turns on the switch circuit 7 corresponding to each of the wire groups according to a certain sequence to form a plurality of electromagnetic sensing circuits, so that the sensing unit 4 sequentially transmits the detection signals to the same. Electromagnetic sensing circuit to determine the position, distance and touch point of the electromagnetic stylus.

In particular, the number of the switching circuits 7 of the present embodiment does not necessarily need to correspond to the number of the sensing wires 5, and as shown in FIG. 9, a plurality of sensing wires 5 are electrically connected to one switching circuit 7, so that sensing is performed. The unit 4 simultaneously transmits or receives a detection signal to the sensing wires 5. In addition, the display module 20 of the present embodiment can also be an In Plan Switching (IPS) architecture as shown in FIG. 10, and can also achieve optimal control of touch scanning. Moreover, the display module includes a dummy pixel region (not shown), and the switch circuits 7 are disposed in the pseudo pixel region to save space and reduce manufacturing costs.

In summary, the interleaved driving touch sensing display of the present invention utilizes the original scanning line and the gate line, or the common electrode line as the sensing wire for sensing the touch position of the user, and is combined with at least one wire emission detection. Signal, at least another wire receives five ways to detect the signal to sense the charge, capacitance, magnetic flux, electromagnetic induction, or voltage, current, frequency and other parameters of the wire. In addition, the control module 30 also switches the opening and closing of the grounding switch 209 according to the display period of the display module 20 to achieve the control of the display screen and the touch scanning optimization, so that the object of the present invention can be achieved.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.

S10~S40. . . step

100. . . Touch sensitive display

10. . . Touch sensor module

1. . . First direction wire

2. . . Second direction wire

3. . . Insulation

4. . . Sensing unit

6. . . Inductive conduction line

7. . . Switch circuit

41. . . First sensing circuit

42. . . Second sensing circuit

20. . . Display module

201. . . First polarizer

202. . . First substrate

203. . . Pixel array layer

204. . . Liquid crystal layer

205. . . Common electrode layer

206. . . Color filter

207. . . Second substrate

208. . . Second polarizer

209. . . Grounding switch

30. . . Control module

301. . . First drive circuit

302. . . Second drive circuit

303. . . Control circuit

40. . . Backlight

50. . . case

51. . . Protective panel

1 is a circuit diagram illustrating a conventional self-contained sensing display;

2 is a first preferred embodiment of a touch sensitive display for interleaved driving;

3 is a circuit diagram showing the structure of a touch sensing module in the first preferred embodiment;

4 is a cross-sectional view showing the internal structure of a display module in the first preferred embodiment;

FIG. 5 is a diagram showing an interleaved driving method of the touch sensitive display in the first preferred embodiment; FIG.

Figure 6 is a view showing the shape structure of the first image and the second image;

7 is a cross-sectional view showing the touch sensitive display of the first preferred embodiment;

8 is a second preferred embodiment of a touch-sensitive display with interleaved driving, wherein the display module is a marginal electric field structure;

9 is a schematic diagram showing another circuit of the display module as a marginal electric field structure; and

Figure 10 is a circuit diagram showing the display module as a horizontal transverse electric field.

S10~S40. . . step

Claims (32)

The touch sensing method is implemented by a sensing unit of a touch sensing component, and the sensing unit is coupled to a plurality of first direction wires arranged side by side. The touch sensing method is characterized by: Transmitting a detection signal from the at least one first direction wire and receiving the detection signal from the at least another first direction wire to sense the charge, capacitance, magnetic flux, electromagnetic induction, or voltage, current, Parameters such as frequency. According to the touch sensing method of the interleaved driving method of claim 1, wherein the sensing method transmits the detection signal from a plurality of first direction wires, and receives the detection signals from the plurality of other first direction wires. . According to the touch sensing method of the interleaved driving method of claim 2, the first direction wires that emit the detection signals and the first direction wires that receive the detection signals are at least partially interlaced with each other. Neighbors, or at a certain distance. According to the touch sensing method of the interleaved driving method of claim 1, wherein the first direction wires are divided into a plurality of wire groups, wherein each wire group includes at least two first direction wires, the sensing method The detection signal is transmitted from one of the wire groups, and the detection signal is received from another wire group, and the detection signal is detected by a numerical operation to determine the position, distance, touch height and touch point where the sensing line changes. . According to the touch sensing method of the interleaved driving method described in the first aspect of the patent application, the sensing unit is further coupled to the plurality of second direction wires that are adjacent to each other and intersects with the second direction. The direction extending, the second direction wires and the first direction wires are interlaced at an angle but not electrically connected. The touch sensing method of the interleaved driving method according to claim 5, wherein the sensing method transmits the detection signal from a plurality of incompletely adjacent first direction wires, and is not completely adjacent from the other plurality of lines. The second direction wire receives the detection signal; or transmits the detection signal from a plurality of incompletely adjacent second direction wires, and receives the detection signal from the other plurality of incompletely adjacent first direction wires. According to the touch sensing method of the interleaved driving method of claim 4, wherein the first direction wires are divided into at least four wire groups, and the sensing method first transmits the detection signals from a first wire group. Receiving the detection signal from a second group of conductors, and then transmitting the detection signal from the second group of conductors, and receiving the detection signal from a third group of conductors, and then transmitting the detection signal from the third group of conductors. And receiving the detection signal from a fourth wire group to determine the position, distance, touch height and touch point of the change of the sensing line by numerical operation. According to the touch sensing method of the interleaved driving method of claim 4, wherein the first direction wires are divided into at least four wire groups, and the sensing method first transmits the detection signals from a first wire group. Receiving the detection signal from a second group of conductors, and then transmitting the detection signal from a third group of conductors, and receiving the detection signal from a fourth group of conductors, and determining by numerical operation that the position of the sensing line changes, Distance, touch height and touch point. According to the touch sensing method of the interleaved driving method of claim 4, wherein the first direction wires are divided into at least four wire groups, and the sensing method first transmits the detection signals from a first wire group. Receiving the detection signal from a third group of conductors, and then transmitting the detection signal from a second group of conductors, and receiving the detection signal from a fourth group of conductors, and determining by numerical operation that the position of the sensing line changes, Distance, touch height and touch point. The touch sensing method of the interleaved driving method according to any one of claims 7 to 9, wherein the first wire group, the second wire group, the third wire group, and the fourth wire group The first direction conductors may partially overlap, overlap or not overlap. An interleaved driving touch sensing module includes: a plurality of first direction wires, the first direction wires are mutually juxtaposed and extending in a first direction; and an executable as in the first to tenth patent application scope The sensing unit of the touch-sensing method is coupled to the first direction wires to detect the charge, capacitance, magnetic flux, electromagnetic induction, or voltage, current, frequency, and the like of the first direction wire. . According to the eleventh driving touch sensing module of claim 11, wherein the first direction wire of the emission detecting signal has a first image and structure, and the first direction wire for detecting the detecting signal Has a second image, structure. The touch-sensing module of the interleaved drive of claim 12, wherein the first image and the second image may be the same or different. The touch-sensing module of the interleaved drive according to claim 13 , wherein the first image or the second images may be strips, diamonds, grids, squares or a combination thereof. . The touch-sensing module of the interleaved drive according to any one of the preceding claims, further comprising: a plurality of second direction wires coupled to the sensing unit, the second direction wires are mutually Side by side and extending in a second direction intersecting the first direction, the second direction wires and the first direction wires are interlaced at an angle but not in conduction. The touch-sensing module of the interleaved drive according to the fifteenth aspect of the invention, wherein the first direction wires and the second direction wires are co-constructed wires on an active array. The touch-sensing module of the interleaved driving method of claim 16, wherein the first direction wires and the second direction wires are or modified from a plurality of data lines on the active array, Gate line, common electrode line, auxiliary line, bias line, read line, etc. An interlaced touch sensing display comprises: a display module for displaying a picture; a touch sensing module comprising a plurality of first direction wires and a sensing unit arranged side by side; and a control module The control module is coupled to the touch sensing module, and the control module controls the display module during a display period. During a capacitive touch sensing, the sensing unit performs the first to tenth items as claimed in the patent application. The touch sensing method of the interleaved driving of any one of the above, to sense the electric charge, capacitance, magnetic flux, electromagnetic induction, or voltage, current, frequency and the like of the first direction wires. The touch-sensing display of the interleaved driving device of claim 18, wherein the touch sensing module further includes an inductive conductive line, and a plurality of the first direction wires are coupled to the inductive conduction a switching circuit for connecting a conductive state in which the first direction wires are electrically connected to the inductive conducting lines, and a non-electrical connection between the first direction wires and the inductive conducting lines During the electromagnetic touch sensing, the control module turns on the switch circuit corresponding to the at least two first direction wires to electrically connect the two first direction wires to the inductive conductive line to form an electromagnetic sensing. Loop. The touch-sensing display device of the present invention, wherein the touch-sensing module further includes a plurality of second-directional wires coupled to the sensing unit, and the second-directional wires Side by side and extending in a second direction intersecting the first direction, the second direction wires and the first direction wires are interlaced at an angle but not in conduction. The touch-sensitive display of the interleaved drive according to claim 20, wherein the first direction wires and the second direction wires are co-constructed wires on an active array. The touch-sensitive display of the interleaved drive according to claim 21, wherein the first direction wires and the second direction wires are a plurality of data lines and gate lines on the active array. Common electrode lines, auxiliary lines, bias lines, read lines, and the like. The touch-sensing display device of the present invention, wherein the display module includes a first substrate and a second substrate, and the touch sensing module can be disposed on the inner side of the first substrate. The outer side of the first substrate, the inner side of the second substrate, or the outer side of the second substrate. According to the staggered driving touch sensing display of claim 18, the touch sensing display may be a liquid crystal display, an organic light emitting diode, an electronic swimming display, or an electrowetting display. The touch-sensing display of the interleaved drive of claim 18, further comprising a housing, and a backlight disposed in the housing and coupled to the control module, the control module During the electromagnetic touch sensing period, the backlight is turned off or darkened during the capacitive touch sensing, and the backlight is turned on during the display. The touch-sensing display of the interleaved drive of claim 25, wherein the housing comprises a protective panel, and the first direction wires and the second direction wires are tied to the protection panel. The touch-sensing display of the interleaved driving device of claim 18, wherein the first direction wire of the emission detecting signal has a first image and a structure, and the first direction wire for detecting the detection signal has A second image, structure. The touch-sensitive display of the interleaved drive according to claim 27, wherein the first image or the second images may be strips, diamonds, grids, squares or a combination thereof. The touch-sensitive display of the interleaved drive according to claim 20, wherein the first direction wires are divided into a plurality of wire groups, wherein each wire group comprises at least two first direction wires, the control module According to a sequence, a switch circuit corresponding to each of the wire groups is sequentially turned on according to a certain interval to form a plurality of electromagnetic sensing circuits, and the sensing unit sequentially transmits the detection signals to the electromagnetic sensing circuits, and detects The detection signal is numerically judged to occur at a position, a distance, a touch height, and a touch point where the electromagnetic induction circuit changes. The touch-sensitive display of the interleaved drive according to claim 20 or 29, wherein the second directional wires are divided into a plurality of wire groups, wherein each wire group includes at least two second directional wires, the control The module sequentially turns on the switch circuit corresponding to each of the wire groups according to a certain sequence to form a plurality of electromagnetic sensing circuits, and the sensing unit sequentially transmits the detection signals to the electromagnetic sensing circuits. And detecting the detection signal to determine the position, distance, touch height and touch point of the electromagnetic induction circuit change by numerical operation. The touch-sensing display of the interleaved drive according to claim 18, wherein the display module comprises a pseudo-pixel area, and the switch circuit and the inductive conduction line are disposed in the pseudo-pixel area. The touch-sensing display of the interleaved driving device of claim 18, wherein the display module comprises a common electrode layer, and the display further comprises a coupling to the common electrode layer and the ground, or a large conductor, Or a grounding switch between the large capacitive objects, the control module controls the grounding switch to be non-conducting when the sensing unit receives the detecting signal, so that the common electrode layer is not grounded, or a large conductor or a large capacitive object, the control When the module displays the screen, the module controls the grounding switch to be turned on to form a common electrode ground, or a large conductor or a large capacitive object.