CN111221435B - Touch substrate, touch panel and touch display device - Google Patents
Touch substrate, touch panel and touch display device Download PDFInfo
- Publication number
- CN111221435B CN111221435B CN201911397939.5A CN201911397939A CN111221435B CN 111221435 B CN111221435 B CN 111221435B CN 201911397939 A CN201911397939 A CN 201911397939A CN 111221435 B CN111221435 B CN 111221435B
- Authority
- CN
- China
- Prior art keywords
- sub
- electrode
- parallel
- signal
- line
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
- 239000000758 substrate Substances 0.000 title claims abstract description 103
- 238000003491 array Methods 0.000 claims abstract description 6
- 239000010409 thin film Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000004364 calculation method Methods 0.000 description 3
- 238000004590 computer program Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
-
- 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
- G06F3/0412—Digitisers structurally integrated in a display
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
Abstract
The application discloses a touch substrate, a touch panel and touch display equipment, wherein the touch substrate comprises a substrate, a plurality of signal lines and sub-electrode arrays arranged on the substrate, and the sub-electrodes included in the sub-electrode arrays correspond to the signal lines one to one; the sub-electrode array comprises a plurality of electrode areas, and each electrode area corresponds to different parallel numbers; the signal lines corresponding to the sub-electrodes comprise one or more signal branch lines connected in parallel, and the number of the signal branch lines connected in parallel is the parallel number corresponding to the electrode area where the sub-electrodes are located; the difference of the line resistance values of the signal lines corresponding to any two sub-electrodes in the sub-electrode array is smaller than a preset threshold value. This application reduces the circuit resistance that the sub-electrode corresponds through the mode of parallelly connected signal branch line in the signal line of sub-electrode, improves the resistance difference that the sub-electrode signal line was walked the line in touch-control base plate, reduces the difference of the response speed of different sub-electrodes to touch-control drive signal, can realize better touch-control operation recognition effect.
Description
Technical Field
The application relates to the technical field of touch control, in particular to a touch control substrate, a touch control panel and a touch control display device.
Background
In the touch display device, the touch electrodes on the touch substrate are formed by sub-electrodes arranged in an array, and each sub-electrode is connected to a driving IC (Integrated Circuit Chip) on the outer side of the touch substrate through a signal line corresponding to the sub-electrode, so that a touch driving signal output by the driving IC can be loaded.
However, in the sub-electrode array, distances between the sub-electrodes at different positions and the driving IC are different, so that lengths of signal lines corresponding to the sub-electrodes at different positions are different, resistance values of the signal lines at different lengths are different, and the difference in the resistance values of the signal lines causes different response speeds of the sub-electrodes to the touch driving signal, thereby reducing the quality of the touch display device and causing poor user experience.
Disclosure of Invention
In order to solve the above problems, the present application provides a touch substrate, a touch panel and a touch display device, in which a plurality of signal branch lines are connected in parallel to a signal line of a sub-electrode, so as to reduce the resistance of the line corresponding to the sub-electrode, improve the difference in resistance of the sub-electrode signal line routing in the touch substrate, reduce the difference in response speed of different sub-electrodes to a touch driving signal, and achieve a better touch operation recognition effect.
In a first aspect, an embodiment of the present application provides a touch substrate, including a substrate, a plurality of signal lines, and a sub-electrode array arranged on the substrate, where the sub-electrode array includes sub-electrodes in one-to-one correspondence with the signal lines, and the touch substrate includes:
the sub-electrode array comprises a plurality of electrode areas, and each electrode area corresponds to different parallel numbers respectively;
the signal lines corresponding to the sub-electrodes comprise one or more signal branch lines connected in parallel, and the number of the signal branch lines connected in parallel is the parallel number corresponding to the electrode area where the sub-electrodes are located;
and the difference of the line resistance values of the signal lines corresponding to any two sub-electrodes in the sub-electrode array is smaller than a preset threshold value.
In some embodiments of the present application, the number of parallel connections corresponding to the electrode area is determined according to a difference in resistance of routing lines between the sub-electrodes in the electrode area and the sub-electrode with the minimum resistance of the pre-equalization circuit.
In some embodiments of the present application, the determining of the parallel number corresponding to the electrode area includes:
calculating the average value of the resistance values of the lines before equalization corresponding to the sub-electrodes in the electrode area; calculating the difference between the average value and the resistance value of the pre-equalization line corresponding to the sub-electrode with the minimum resistance value of the pre-equalization line; and determining the parallel connection number corresponding to the electrode area according to the difference value and the preset threshold value.
In some embodiments of the present application, each electrode region corresponds to a different resistance range, and the pre-equalization resistance values corresponding to the sub-electrodes in the same electrode region are located in the resistance range corresponding to the same electrode region;
the front balanced resistance value corresponding to the sub-electrode is in positive correlation with the distance from the sub-electrode to the original point of the substrate, and the original point of the substrate is the intersection point of the driving chip corresponding to the touch substrate and the central axis of the sub-electrode array along the row direction.
In some embodiments of the present application, a parallel number corresponding to a first electrode area is greater than a parallel number corresponding to a second electrode area, the first electrode area is any one electrode area in the sub-electrode array, and a lower limit of a resistance interval corresponding to the first electrode area is greater than or equal to an upper limit of a resistance interval corresponding to the second electrode area.
In some embodiments of the present application, the signal leg comprises a first leg directly connected to a sub-electrode; the parallel number corresponding to the electrode area comprises a first number corresponding to the first branch line;
the first number of the first branch lines connected in parallel in the signal lines corresponding to the first sub-electrodes is greater than or equal to the first number of the first branch lines connected in parallel in the signal lines corresponding to the second sub-electrodes;
the first sub-electrode is any sub-electrode in the sub-electrode array; the parallel number corresponding to the electrode area where the first sub-electrode is located is larger than or equal to the parallel number corresponding to the electrode area where the second sub-electrode is located.
In some embodiments of the present application, the signal branch line comprises a second branch line located at an output area of the touch substrate; the parallel number corresponding to the electrode area comprises a second number corresponding to the second branch line;
the second number of the second branch lines connected in parallel in the signal lines corresponding to the first sub-electrodes is greater than or equal to the second number of the second branch lines connected in parallel in the signal lines corresponding to the second sub-electrodes;
the first sub-electrode is any sub-electrode in the sub-electrode array; the parallel number corresponding to the electrode area where the first sub-electrode is located is larger than or equal to the parallel number corresponding to the electrode area where the second sub-electrode is located.
In some embodiments of the present application, the signal branch lines include a third branch line located in an operable area of the touch substrate; the parallel number corresponding to the electrode area comprises a third number corresponding to the third branch line;
the third number of the third branch lines connected in parallel in the signal line corresponding to the first sub-electrode is greater than or equal to the third number of the third branch lines connected in parallel in the signal line corresponding to the second sub-electrode;
the first sub-electrode is any sub-electrode in the sub-electrode array; the parallel number corresponding to the electrode area where the first sub-electrode is located is larger than or equal to the parallel number corresponding to the electrode area where the second sub-electrode is located.
In some embodiments of the present application, the signal branch line includes a first branch line directly connected to a sub-electrode and a second branch line located at an output area of the touch substrate; the parallel number corresponding to the electrode area comprises a first number corresponding to the first branch line and a second number corresponding to the second branch line; or,
the signal branch lines comprise the first branch lines and third branch lines located in an operable area of the touch substrate; the parallel number corresponding to the electrode area comprises the first number and a third number corresponding to the third branch line; or,
the signal legs comprise the second leg and the third leg; the parallel number corresponding to the electrode area comprises the second number and the third number; or,
the signal branch lines comprise the first branch line, the second branch line and the third branch line, and the parallel number corresponding to the electrode areas comprises the first number, the second number and the third number.
In some embodiments of the present application, the first branch line is a Thin Film Transistor (TFT) tube directly connected to the sub-electrode; or,
the first branch line comprises the TFT tube and a second branch line positioned in an output area, and the second branch line is connected with the TFT tube; or,
the first branch line comprises the TFT tube, the second branch line and a third branch line located in an operable area, the second branch line is respectively connected with the TFT tube and the third branch line, and the third branch line is connected with the driving chip corresponding to the touch substrate.
In a second aspect, an embodiment of the present application provides a touch panel, which includes the touch substrate described in the first aspect.
In a third aspect, an embodiment of the present application provides a touch display device, including the touch panel of the second aspect.
The technical scheme provided in the embodiment of the application at least has the following technical effects or advantages:
in this application, the line resistance of the signal line of the sub-electrode is reduced by connecting the signal branch lines in parallel in the signal line of the sub-electrode, so that the difference between the line resistance of the sub-electrode far away from the original point of the substrate and the line resistance of the sub-electrode near the original point of the substrate is reduced, and the difference between the line resistances corresponding to any two sub-electrodes on the touch substrate is smaller than a preset threshold value. The resistance difference of the wiring of the sub-electrode signal lines in the touch substrate is improved, so that the difference between the response speeds of different sub-electrodes to the touch driving signals is reduced, the quality of the touch display device is improved, and the user experience is good.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic diagram illustrating a touch substrate according to an embodiment of the present disclosure;
fig. 2 is a first schematic diagram illustrating a plurality of first branches connected in parallel in a signal line corresponding to a sub-electrode provided in an embodiment of the present application;
fig. 3 is a second schematic diagram illustrating a plurality of first branches connected in parallel in a signal line corresponding to a sub-electrode provided in an embodiment of the present application;
fig. 4 is a third schematic diagram illustrating a plurality of first branch lines connected in parallel in a signal line corresponding to a sub-electrode provided in an embodiment of the present application;
fig. 5 is a schematic diagram illustrating a plurality of second branches connected in parallel in a signal line corresponding to a sub-electrode provided in an embodiment of the present application;
fig. 6 shows a schematic diagram of a plurality of third branches connected in parallel in a signal line corresponding to a sub-electrode provided in an embodiment of the present application.
The reference symbols in the above drawings represent the following meanings:
1: base substrate, 2: signal line, 3: sub-electrode, 4: electrode area, 5: a driving chip;
21: first branch line, 22: second branch, 23: and a third branch.
Detailed Description
Exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The embodiments of the present application provide a touch substrate, a touch panel and a touch display device, which are described below with reference to the accompanying drawings.
The embodiment of the application provides a touch substrate, referring to fig. 1, the touch substrate includes a substrate 1, a plurality of signal lines 2, and sub-electrode arrays arranged on the substrate, and the sub-electrodes 3 included in the sub-electrode arrays correspond to the signal lines 2 one to one.
The sub-electrode array comprises a plurality of electrode areas 4, and each electrode area 4 corresponds to different parallel numbers respectively; the signal line 2 corresponding to the sub-electrode 3 comprises one or more signal branch lines connected in parallel, and the number of the signal branch lines connected in parallel is the parallel number corresponding to the electrode area 4 where the sub-electrode 3 is located; the difference of the line resistance values of the signal lines 2 corresponding to any two sub-electrodes 3 in the sub-electrode array is smaller than a preset threshold value.
Fig. 1 only schematically shows a part of the sub-electrodes 3 on the left side of the central axis in the column direction in the sub-electrode array, and the dotted line perpendicular to the driving chip 5 in fig. 1 is the central axis in the column direction. Fig. 1 schematically shows a 4-row and 4-column sub-electrode array and schematically shows two electrode regions 4 with dashed boxes, 3 signal branches are schematically connected in parallel in the signal lines 2 corresponding to the sub-electrodes 3 in the electrode regions 4 farther from the central axis of the driving chip 5 in the column direction, and 2 signal branches are schematically connected in parallel in the signal lines 2 corresponding to the sub-electrodes 3 in the electrode regions 4 closer to the central axis of the driving chip 5 in the column direction. In practical application, the size of the neutron electrode array can be N M, and the values of N and M can be any positive integer. In practical applications, the division of the electrode regions 4, the number of parallel connections corresponding to each electrode region 4, and the location area where the parallel signal branch lines are located in the signal line 2 of the sub-electrode 3 are all determined according to the manner described later in this embodiment. Fig. 1 is merely a schematic illustration.
In the touch substrate, each sub-electrode 3 in the sub-electrode array is connected with a driving chip 5 corresponding to the touch substrate through a corresponding signal line 2, and a touch driving signal is loaded through the corresponding signal line 2. The sub-electrodes 3 at different positions in the sub-electrode array have different distances from the driving chip 5, so the lengths of the signal lines 2 corresponding to different sub-electrodes 3 are different. On the premise that all other attributes of the signal lines 2, such as thickness and material, except length, are consistent, the line resistance values of the signal lines 2 with different lengths are different, and the longer the length of the signal line 2 is, the larger the corresponding line resistance value is.
In order to equalize the line resistance values of the sub-electrodes 3 at different positions and reduce the difference between the line resistance values corresponding to the sub-electrodes 3 caused by different distribution positions, the sub-electrode array is divided into a plurality of electrode areas 4 according to the embodiment of the present application, and the parallel number corresponding to each electrode area 4 is set. In the signal lines 2 corresponding to the sub-electrodes 3 in the same electrode region 4, the signal branch lines corresponding to the electrode region 4 are connected in parallel, and the line resistance of the signal lines 2 corresponding to the sub-electrodes 3 is reduced by connecting the signal branch lines in parallel. The larger the parallel number corresponding to the electrode regions 4 which are farther from the origin of the substrate is, the line resistance values corresponding to the sub-electrodes 3 in each electrode region 4 are balanced in a parallel connection mode, so that the difference value between the line resistance values corresponding to any two sub-electrodes 3 in the sub-electrode array is smaller than a preset threshold value. The line resistance difference between the sub-electrodes 3 in the touch substrate is reduced, so that the difference between the response speeds of different sub-electrodes 3 to the touch driving signals is reduced, and the recognition effect of the touch operation signals of the touch substrate is greatly improved.
The base plate origin is an intersection point of the driving chip 5 corresponding to the touch base plate and the central axis of the sub-electrode array along the column direction, and the length of the signal line 2 corresponding to the sub-electrode 3 which is closer to the base plate origin is shorter, and the line resistance value is smaller. The preset threshold may be 0.3 or 0.6, and the preset threshold is the maximum error allowed by resistance equalization. The specific value of the preset threshold is not limited in the embodiment of the application, and the value of the preset threshold can be determined according to requirements in practical application.
The parallel number corresponding to the electrode area 4 is determined according to the difference of the wiring resistance between the sub-electrode 3 in the electrode area 4 and the sub-electrode 3 with the minimum circuit resistance before equalization.
The length of the signal line 2 corresponding to the sub-electrode 3 closest to the substrate origin in the touch substrate is the smallest, and the line resistance of the signal line 2 is the smallest. In the embodiment of the present application, the resistance values of the sub-electrodes 3 at other positions on the touch substrate are balanced to the resistance value of the sub-electrode 3 closest to the origin of the substrate. When performing resistance equalization, for any one electrode area 4, the resistance of the pre-equalization line corresponding to each sub-electrode 3 in the electrode area 4 is determined. Calculating the average value of the resistance values of the lines before equalization corresponding to the sub-electrodes 3 in the electrode area 4, and calculating the difference value between the average value and the resistance value of the line before equalization corresponding to the sub-electrode 3 with the minimum resistance value of the line before equalization, wherein the sub-electrode 3 with the minimum resistance value of the line before equalization is the sub-electrode 3 closest to the origin of the substrate. And determining the parallel connection number corresponding to the electrode area 4 according to the calculated difference value and the preset threshold value.
The signal line 2 corresponding to the sub-electrode 3 in the electrode area 4 is partially extended from the sub-electrode 3 closest to the substrate origin, and the average value of the resistance values of the extended signal lines 2 is the calculated difference. The extended part of the signal line 2 corresponding to the sub-electrode 3 includes a signal branch line corresponding to the sub-electrode 3. The calculated difference can represent the branch resistance of the signal branch corresponding to the sub-electrode 3 in the electrode area 4. After the line resistance is balanced through the embodiment of the application, the difference value between the line resistance corresponding to the sub-electrode 3 in the electrode area 4 and the line resistance of the sub-electrode 3 closest to the original point of the substrate is required to be smaller than the preset threshold value. Therefore, according to a calculation formula of the parallel resistance, the ratio of the branch resistance value of the signal branch line corresponding to the sub-electrode 3 to the parallel number is smaller than a preset threshold value, a value interval to which the parallel number belongs can be calculated through the calculation of the inequality, and an integer is selected from the value interval to be used as the parallel number corresponding to the signal branch line in the electrode area 4. Further, in order to reduce the space of the substrate 1 occupied by the signal lines 2, the smallest integer may be selected from the value ranges as the parallel number corresponding to the signal branch lines in the electrode region 4.
For example, if one electrode region 4 includes 4 sub-electrodes 3, and the resistance values of the pre-equalization lines corresponding to each sub-electrode 3 are 4, 5, and 5, respectively, the average value of the resistance values of the pre-equalization lines corresponding to each sub-electrode 3 in the electrode region 4 is 4.5. Assuming that the resistance value of the pre-equalization line corresponding to the sub-electrode 3 with the minimum resistance value of the pre-equalization line is 3, the preset threshold value is 0.4. The difference between this average value 4.5 and the minimum pre-equalization line resistance 3 is 1.5. And determining the parallel connection number corresponding to the electrode area 4 according to the difference value 1.5 and a preset threshold value 0.4. Specifically, if the number of parallel connections is x, then 1.5/x <0.4, and after x >3.75,4 is obtained by calculation and 5 is entered, an integer 4 is selected as the number of parallel connections corresponding to the electrode region 4.
For each electrode area 4 included in the sub-electrode array, the parallel number corresponding to each electrode area 4 is determined in the above manner. When the signal wires 2 of the sub-electrodes 3 are wired, the parallel connection number corresponding to the electrode area 4 where the sub-electrodes 3 are located is determined. The signal branch lines with the number of the parallel connection are connected in parallel in the signal line 2 of the sub-electrode 3, so that the line resistance of the signal line 2 of the sub-electrode 3 is reduced, and the difference value between the line resistance corresponding to the sub-electrode 3 and the line resistance corresponding to the sub-electrode 3 closest to the original point of the substrate is smaller than a preset threshold value. The line resistance difference between the sub-electrodes 3 in the touch substrate is reduced, so that the difference between the response speeds of different sub-electrodes 3 to the touch driving signals is reduced, and the recognition effect of the touch operation signals of the touch substrate is greatly improved.
In the embodiment of the present application, the line resistance values corresponding to the sub-electrodes 3 before equalization may be divided into resistance value intervals with different gradients, and the sub-electrode array is divided into a plurality of electrode regions 4 according to the divided resistance value intervals, so that each electrode region 4 corresponds to a different resistance value interval, and the resistance values corresponding to the sub-electrodes 3 in the same electrode region 4 before equalization are all located in the resistance value interval corresponding to the same electrode region 4. The resistance value before equalization corresponding to the sub-electrode 3 is in positive correlation with the distance from the sub-electrode 3 to the original point of the substrate, that is, the farther the distance from the sub-electrode 3 to the original point of the substrate is, the larger the resistance value before equalization corresponding to the sub-electrode 3 is, and the original point of the substrate is the intersection point of the driving chip 5 corresponding to the touch substrate and the central axis of the sub-electrode array along the column direction.
In the unbalanced touch substrate, the resistance value of the circuit corresponding to the sub-electrode 3 closest to the origin of the substrate is the smallest, and the resistance value of the circuit corresponding to the sub-electrode 3 farthest from the origin of the substrate is the largest. With R max And R min Respectively represents the maximum line resistance value and the minimum line resistance value, the line resistance value corresponding to the sub-electrode 3 at the middle position is larger than R min Is less than R max . The resistance value interval is divided into an interval [ R ] min ，R max ]Dividing the resistance value into a plurality of resistance value intervals. Such as can be divided into [ R ] min ，R min +k 1 *(R max -R min ))、[R min +k 1 *(R max -R min )，R min +k 2 *(R max -R min ))、……、[R min +k n-1 *(R max -R min )，R max ]. Wherein k is 1 、k 2 ……、k n-1 Is a gradually increasing sequence of numbers greater than 0 and less than 1.
For example, the resistance value can be divided into 5 resistance value intervals, and n is 5,k 1 、k 2 、k 3 、k 4 The values are 1/5, 2/5, 3/5 and 4/5 in sequence. The divided 5 resistance intervals are sequentially R min ，R min +1/5*(R max -R min ))、[R min +1/5*(R max -R min )，R min +2/5*(R max -R min ))、[R min +2/5*(R max -R min )，R min +3/5*(R max -R min ))、[R min +3/5*(R max -R min )，R min +4/5*(R max -R min ))、[R min +4/5*(R max -R min )，R max ]。
After the resistance value interval is divided in the above manner, the resistance value interval corresponding to each sub-electrode 3 is respectively determined according to the pre-equalization resistance value corresponding to the signal line 2 of each sub-electrode 3 in the pre-equalization sub-electrode array, and the sub-electrodes 3 corresponding to the same resistance value interval are divided into the same electrode area 4. The signal lines 2 of the sub-electrodes 3 divided into the same electrode area 4 are all connected in parallel with the signal branch lines with the number corresponding to the electrode area 4, so that the wiring resistance of the signal lines 2 is balanced among the electrode areas 4.
In the embodiment of the present application, the electrode regions 4 with higher resistance gradient in the corresponding resistance interval have larger corresponding parallel number. If any electrode area 4 in the sub-electrode array is called a first electrode area 4, the parallel number corresponding to the first electrode area 4 is greater than the parallel number corresponding to the second electrode area 4, and the lower limit value of the resistance value interval corresponding to the first electrode area 4 is greater than or equal to the upper limit value of the resistance value interval corresponding to the second electrode area 4.
Therefore, for the sub-electrodes 3 in the electrode area 4 with higher resistance gradient and farther distance from the original point of the substrate, the number of the parallel signal branch lines in the signal line 2 is increased, the line resistance corresponding to the sub-electrodes 3 far away from the original point of the substrate on the touch substrate is balanced according to the progressive wiring mode, and the difference among the different sub-electrodes 3 is reduced.
As shown in fig. 2, 3 and 4, the signal branch line includes a first branch line 21 directly connected to the sub-electrode 3; the parallel number corresponding to the electrode region 4 comprises a first number corresponding to the first branch line 21; the first number of the first branch lines 21 connected in parallel in the signal lines 2 corresponding to the first sub-electrodes is greater than or equal to the first number of the first branch lines 21 connected in parallel in the signal lines 2 corresponding to the second sub-electrodes; the first sub-electrode is any sub-electrode 3 in the sub-electrode array; the parallel number corresponding to the electrode area 4 where the first sub-electrode is located is greater than or equal to the parallel number corresponding to the electrode area 4 where the second sub-electrode is located.
The signal line 2 corresponding to the sub-electrode 3 is divided into three parts in the embodiment of the present application, that is, a part of branch lines which are directly connected with the sub-electrode 3 and are wired in the region between the sub-electrode 3 and the output region, a part of branch lines which are wired in the output region, and a part of branch lines which are wired in the operable region. In the embodiment of the present application, a part of the branch lines routed in the output area is referred to as second branch lines, and a part of the branch lines routed in the operable area is referred to as third branch lines.
As shown in fig. 2, the first branch line 21 may be only a part of branch lines directly connected to the sub-electrodes 3 and routed in a region between the sub-electrodes 3 and the output region, and the part of branch lines may be TFT (Thin Film Transistor) tubes directly connected to the sub-electrodes 3. Alternatively, as shown in fig. 3, the first branch line 21 may include a TFT tube and a second branch line located at the output region, the second branch line being connected to the TFT tube. Alternatively, as shown in fig. 4, the first branch line 21 may further include a TFT tube, a second branch line and a third branch line located in the operable region, the second branch line is connected to the TFT tube and the third branch line, and the third branch line is connected to the driving chip 5 corresponding to the touch substrate.
Among them, fig. 2, 3 and 4 only schematically show three sub-electrodes 3, and only schematically show a specific case where 3 first branch lines 21 are connected in parallel in the signal line 2 of one sub-electrode 3.
In the embodiment of the present application, the number of the first branch lines 21 connected in parallel in the signal lines 2 corresponding to the sub-electrodes 3 farther from the origin of the substrate increases. That is, in the sub-electrode array, the number of the first branch lines 21 connected in parallel in the signal lines 2 of the sub-electrodes 3 farther from the origin of the substrate is greater than or equal to the number of the first branch lines 21 connected in parallel in the signal lines 2 of the sub-electrodes 3 closer to the origin of the substrate. By connecting the first branch lines 21 in parallel, the line resistance of the signal lines 2 corresponding to the sub-electrodes 3 is reduced, and the purpose of balancing the line resistance corresponding to each sub-electrode 3 is achieved.
As shown in fig. 5, the signal branch line may further include a second branch line 22 located in the output area of the touch substrate; the parallel number corresponding to the electrode region 4 comprises a second number corresponding to the second branch line 22; the second number of the second branch lines 22 connected in parallel in the signal lines 2 corresponding to the first sub-electrodes is greater than or equal to the second number of the second branch lines 22 connected in parallel in the signal lines 2 corresponding to the second sub-electrodes; the first sub-electrode is any sub-electrode 3 in the sub-electrode array; the parallel number corresponding to the electrode area 4 where the first sub-electrode is located is greater than or equal to the parallel number corresponding to the electrode area 4 where the second sub-electrode is located.
In fig. 5, only three sub-electrodes 3 are schematically shown, and only a specific case where 3 second branch lines 22 are connected in parallel in the signal line 2 of one sub-electrode 3 is schematically shown.
The output region is an output region of the touch substrate, and the second branch line 22 is a part of a line routed in the output region in the signal line 2 connecting the sub-electrode 3 and the driving chip 5. The larger the number of the second branch lines 22 connected in parallel in the signal lines 2 corresponding to the sub-electrodes 3 farther from the origin of the substrate. That is, in the sub-electrode array, the number of the second branch lines 22 connected in parallel in the signal lines 2 of the sub-electrodes 3 farther from the origin of the substrate is greater than or equal to the number of the second branch lines 22 connected in parallel in the signal lines 2 of the sub-electrodes 3 closer to the origin of the substrate. By connecting the second branch lines 22 in parallel in the output area, the line resistance of the signal lines 2 corresponding to the sub-electrodes 3 is reduced, and the purpose of equalizing the line resistance corresponding to each sub-electrode 3 is achieved.
As shown in fig. 6, the signal branch line may further include a third branch line 23 located in the operable area of the touch substrate; the parallel number corresponding to the electrode region 4 comprises a third number corresponding to the third branch line 23; the third number of the third branch lines 23 connected in parallel in the signal line 2 corresponding to the first sub-electrode is greater than or equal to the third number of the third branch lines 23 connected in parallel in the signal line 2 corresponding to the second sub-electrode; the first sub-electrode is any sub-electrode 3 in the sub-electrode array; the parallel number corresponding to the electrode area 4 where the first sub-electrode is located is greater than or equal to the parallel number corresponding to the electrode area 4 where the second sub-electrode is located.
In fig. 6, only three sub-electrodes 3 are schematically shown, and only a specific case where 3 third branch lines 23 are connected in parallel in the signal line 2 of one sub-electrode 3 is schematically shown.
The operable Area is an AA (Active Area) Area of the touch substrate. The third branch line 23 is a part of the signal line 2 connected between the sub-electrode 3 and the driving chip 5 and routed in the operable area. The larger the number of the third branch lines 23 connected in parallel in the signal lines 2 corresponding to the sub-electrodes 3 farther from the origin of the substrate. That is, in the sub-electrode array, the number of the third branch lines 23 connected in parallel in the signal lines 2 of the sub-electrodes 3 farther from the origin of the substrate is greater than or equal to the number of the third branch lines 23 connected in parallel in the signal lines 2 of the sub-electrodes 3 closer to the origin of the substrate. The line resistance of the signal line 2 corresponding to the sub-electrode 3 is reduced by connecting the third branch line 23 in parallel in the operable area, so as to achieve the purpose of equalizing the line resistance corresponding to each sub-electrode 3.
The embodiment of the present application may also refer to only a part of branch lines routed in the region between the sub-electrode 3 and the output region as the first branch line 21, and divide the signal line 2 corresponding to the sub-electrode 3 into three parts, i.e., the first branch line 21, the second branch line 22 routed in the output region, and the third branch line 23 routed in the operable region. One end of the first branch line 21 is connected with the sub-electrode 3, the other end of the first branch line 21 is connected with one end of the second branch line 22, the other end of the second branch line 22 is connected with one end of the third branch line 23, and the other end of the third branch line 23 is connected with the driving chip 5.
In the embodiment of the present application, the signal branch line may include a first branch line 21 directly connected to the sub-electrode 3 and a second branch line 22 located at the output area of the touch substrate; correspondingly, the parallel number corresponding to the electrode region 4 includes a first number corresponding to the first branch line 21 and a second number corresponding to the second branch line 22. Alternatively, the signal branch lines may also include the first branch line 21 and a third branch line 23 located in the operable area of the touch substrate; accordingly, the parallel number corresponding to the electrode region 4 includes the first number and the third number corresponding to the third branch line 23. Alternatively, the signal legs may also include a second leg 22 and a third leg 23; accordingly, the parallel connection number corresponding to the electrode region 4 includes a second number and a third number. Alternatively, the signal branch lines may further include a first branch line 21, a second branch line 22 and a third branch line 23, and accordingly, the parallel connection number corresponding to the electrode region 4 includes a first number, a second number and a third number.
In the scheme of line resistance equalization corresponding to the sub-electrode 3, any one or two or all three of the three lines in the signal line 2 can be connected in parallel, as long as resistance equalization can be achieved.
The embodiment of the application reduces the line resistance of the signal line of the sub-electrode in a mode of connecting the signal branch line in parallel in the signal line of the sub-electrode, so that the difference between the line resistance of the sub-electrode far away from the original point of the substrate and the line resistance of the sub-electrode close to the original point of the substrate is reduced, and the difference value between the line resistances corresponding to any two sub-electrodes on the touch substrate is smaller than the preset threshold value. The resistance difference of the wiring of the sub-electrode signal lines in the touch substrate is improved, so that the difference between the response speeds of different sub-electrodes to the touch driving signals is reduced, the quality of the touch display device is improved, and the user experience is good.
The embodiment of the application also provides a touch panel comprising the touch substrate and a touch display device comprising the touch panel. Based on the touch substrate provided by the embodiment of the application, the difference between the response speeds of different sub-electrodes in the touch panel and the touch display device to the touch driving signal is reduced, and a better touch operation identification effect can be realized.
It should be noted that:
the algorithms and displays presented herein are not inherently related to any particular computer, virtual machine, or other apparatus. Various general purpose devices may be used with the teachings herein. The required structure for constructing an arrangement of this type will be apparent from the description above. Moreover, this application is not intended to refer to any particular programming language. It will be appreciated that a variety of programming languages may be used to implement the teachings of the present application as described herein, and any descriptions of specific languages are provided above to disclose the best modes of the present application.
In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the application may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the application, various features of the application are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the application and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: this application is intended to cover such departures from the present disclosure as come within known or customary practice in the art to which this invention pertains. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this application.
Those skilled in the art will appreciate that the modules in the devices in an embodiment may be adaptively changed and arranged in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the application and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.
The various component embodiments of the present application may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art will appreciate that a microprocessor or Digital Signal Processor (DSP) may be used in practice to implement some or all of the functions of some or all of the components in the creation apparatus of a virtual machine according to embodiments of the present application. The present application may also be embodied as apparatus or device programs (e.g., computer programs and computer program products) for performing a portion or all of the methods described herein. Such programs implementing the present application may be stored on a computer readable medium or may be in the form of one or more signals. Such a signal may be downloaded from an internet website, or provided on a carrier signal, or provided in any other form.
It should be noted that the above-mentioned embodiments illustrate rather than limit the application, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The application may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
The above description is only for the preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A touch substrate comprises a substrate base plate, a plurality of signal lines and sub-electrode arrays arranged on the substrate base plate, wherein the sub-electrodes included in the sub-electrode arrays correspond to the signal lines one to one, and the touch substrate is characterized by comprising:
the sub-electrode array comprises a plurality of electrode areas, and each electrode area corresponds to different parallel-connection number of signal branch lines;
the signal lines corresponding to the sub-electrodes comprise a plurality of signal branch lines connected in parallel, and the number of the signal branch lines connected in parallel is the parallel number corresponding to the electrode area where the sub-electrodes are located;
the difference of the line resistance values of the signal lines corresponding to any two sub-electrodes in the sub-electrode array is smaller than a preset threshold value, and the preset threshold value is the maximum error allowed by resistance value balance;
the parallel number corresponding to the electrode area is determined according to the difference of the wiring resistance values between the sub-electrodes in the electrode area and the sub-electrodes with the minimum circuit resistance value before equalization;
the determination mode of the parallel number corresponding to the electrode area comprises the following steps:
calculating the average value of the resistance values of the lines before equalization corresponding to the sub-electrodes in the electrode area; calculating the difference between the average value and the resistance value of the pre-equalization line corresponding to the sub-electrode with the minimum resistance value of the pre-equalization line; and determining the parallel connection number corresponding to the electrode area according to the difference value and the preset threshold value.
2. The touch substrate of claim 1,
each electrode area corresponds to different resistance value intervals respectively, and the resistance values of the balanced front lines corresponding to the sub-electrodes in the same electrode area are all located in the resistance value intervals corresponding to the same electrode area;
the balanced front line resistance value that the sub-electrode corresponds with the distance of sub-electrode from the base plate original point is positive correlation, the base plate original point is the drive chip that the touch-control base plate corresponds with the crossing point of the axis of sub-electrode array along the direction of being listed as.
3. The touch substrate of claim 2, wherein the touch substrate comprises a first substrate and a second substrate,
the parallel number corresponding to the first electrode area is greater than that corresponding to the second electrode area, the first electrode area is any electrode area in the sub-electrode array, and the lower limit value of the resistance value interval corresponding to the first electrode area is greater than or equal to the upper limit value of the resistance value interval corresponding to the second electrode area.
4. The touch substrate of claim 1, wherein the signal branch lines comprise first branch lines directly connected to the sub-electrodes; the parallel number corresponding to the electrode area comprises a first number corresponding to the first branch line;
the first number of the first branch lines connected in parallel in the signal lines corresponding to the first sub-electrodes is greater than or equal to the first number of the first branch lines connected in parallel in the signal lines corresponding to the second sub-electrodes;
the first sub-electrode is any sub-electrode in the sub-electrode array; the parallel number corresponding to the electrode area where the first sub-electrode is located is larger than or equal to the parallel number corresponding to the electrode area where the second sub-electrode is located.
5. The touch substrate of claim 1, wherein the signal branch lines comprise second branch lines located at an output area of the touch substrate; the parallel number corresponding to the electrode area comprises a second number corresponding to the second branch line;
the second number of the second branch lines connected in parallel in the signal lines corresponding to the first sub-electrodes is greater than or equal to the second number of the second branch lines connected in parallel in the signal lines corresponding to the second sub-electrodes;
the first sub-electrode is any sub-electrode in the sub-electrode array; the parallel number corresponding to the electrode area where the first sub-electrode is located is larger than or equal to the parallel number corresponding to the electrode area where the second sub-electrode is located.
6. The touch substrate of claim 1, wherein the signal branch lines comprise third branch lines located in an operable area of the touch substrate; the parallel number corresponding to the electrode area comprises a third number corresponding to the third branch line;
the third number of the third branch lines connected in parallel in the signal line corresponding to the first sub-electrode is greater than or equal to the third number of the third branch lines connected in parallel in the signal line corresponding to the second sub-electrode;
the first sub-electrode is any sub-electrode in the sub-electrode array; the parallel number corresponding to the electrode area where the first sub-electrode is located is larger than or equal to the parallel number corresponding to the electrode area where the second sub-electrode is located.
7. The touch substrate of claim 1, wherein the signal branch lines comprise first branch lines directly connected to sub-electrodes and second branch lines located at output areas of the touch substrate; the parallel number corresponding to the electrode area comprises a first number corresponding to the first branch line and a second number corresponding to the second branch line; or,
the signal branch lines comprise the first branch lines and third branch lines located in an operable area of the touch substrate; the parallel number corresponding to the electrode area comprises the first number and a third number corresponding to the third branch line; or,
the signal legs include the second leg and the third leg; the parallel connection number corresponding to the electrode area comprises the second number and the third number; or,
the signal branch lines comprise the first branch line, the second branch line and the third branch line, and the parallel number corresponding to the electrode areas comprises the first number, the second number and the third number.
8. The touch substrate of claim 4,
the first branch line is a Thin Film Transistor (TFT) tube directly connected with the sub-electrode; or,
the first branch line comprises the TFT tube and a second branch line positioned in an output area, and the second branch line is connected with the TFT tube; or,
the first branch line comprises the TFT tube, the second branch line and a third branch line located in an operable area, the second branch line is respectively connected with the TFT tube and the third branch line, and the third branch line is connected with the driving chip corresponding to the touch substrate.
9. A touch panel comprising the touch substrate according to any one of claims 1 to 8.
10. A touch display device characterized by comprising the touch panel according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911397939.5A CN111221435B (en) | 2019-12-30 | 2019-12-30 | Touch substrate, touch panel and touch display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911397939.5A CN111221435B (en) | 2019-12-30 | 2019-12-30 | Touch substrate, touch panel and touch display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111221435A CN111221435A (en) | 2020-06-02 |
| CN111221435B true CN111221435B (en) | 2022-10-11 |
Family
ID=70811095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911397939.5A Active CN111221435B (en) | 2019-12-30 | 2019-12-30 | Touch substrate, touch panel and touch display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111221435B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112214118B (en) * | 2020-10-15 | 2024-01-26 | 维沃移动通信有限公司 | Touch pen, control method thereof and electronic equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105224131A (en) * | 2015-10-08 | 2016-01-06 | 上海中航光电子有限公司 | Array base palte, touch screen and touch control display apparatus |
| CN106990869A (en) * | 2017-04-07 | 2017-07-28 | 上海天马微电子有限公司 | Touch display panel and touch display device |
| CN206497442U (en) * | 2017-03-01 | 2017-09-15 | 厦门天马微电子有限公司 | Self-capacitance touch control display apparatus and display panel |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9760195B2 (en) * | 2011-09-23 | 2017-09-12 | Apple Inc. | Power management for integrated touch screens |
| CN106527820B (en) * | 2016-12-27 | 2019-12-31 | 武汉华星光电技术有限公司 | Array substrate with embedded touch structure and display panel |
-
2019
- 2019-12-30 CN CN201911397939.5A patent/CN111221435B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105224131A (en) * | 2015-10-08 | 2016-01-06 | 上海中航光电子有限公司 | Array base palte, touch screen and touch control display apparatus |
| CN206497442U (en) * | 2017-03-01 | 2017-09-15 | 厦门天马微电子有限公司 | Self-capacitance touch control display apparatus and display panel |
| CN106990869A (en) * | 2017-04-07 | 2017-07-28 | 上海天马微电子有限公司 | Touch display panel and touch display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111221435A (en) | 2020-06-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11960566B1 (en) | Reducing computations for data including padding | |
| TWI646514B (en) | Multiplexer applied to display device | |
| US9927919B2 (en) | Array substrate, drive method, display panel and display device | |
| JP5502244B2 (en) | Input device and contact position detection method of the device | |
| US8576617B2 (en) | Circuit and method for generating a reference level for a magnetic random access memory element | |
| WO2017048368A1 (en) | Quality of service in interconnects with multi-stage arbitration | |
| CN106992188B (en) | Array substrate, display panel and display device | |
| US20160291779A1 (en) | Array substrate, touch display panel, and detection method | |
| CN111221435B (en) | Touch substrate, touch panel and touch display device | |
| WO2017016166A1 (en) | Array substrate, touch panel and display apparatus including the same | |
| CN104331210A (en) | Embedded touch screen, and touch detection method and display device of embedded touch screen | |
| WO2022110950A1 (en) | Display panel and display device | |
| CN104765760A (en) | Page generating and display method based on JSON (java script object notation) format | |
| CN111352697A (en) | Flexible physical function and virtual function mapping | |
| CN106249454B (en) | touch monitor | |
| US10333794B2 (en) | Validating routing tables of routing devices | |
| US20140362010A1 (en) | Sensing electrodes and sensing method thereof | |
| CN104199600B (en) | The processing method and browser of browser multi-tag page | |
| CN104252255B (en) | Sensing electrode and sensing method thereof | |
| WO2023097737A1 (en) | Touch-control display panel and display apparatus | |
| US20070276643A1 (en) | Design method and apparatus for semiconductor integrated circuit | |
| CN113469333B (en) | Artificial intelligence processor, method and related products for executing neural network model | |
| CN109634556A (en) | A kind of multiply-accumulator and cumulative output method | |
| CN104866415B (en) | L2 cache verification method and device based on VMM | |
| CN203444452U (en) | Touch panel and its touch electrode structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |