CN112578944A - Touch substrate, touch display panel and touch display device - Google Patents
Touch substrate, touch display panel and touch display device Download PDFInfo
- Publication number
- CN112578944A CN112578944A CN202011580640.6A CN202011580640A CN112578944A CN 112578944 A CN112578944 A CN 112578944A CN 202011580640 A CN202011580640 A CN 202011580640A CN 112578944 A CN112578944 A CN 112578944A
- Authority
- CN
- China
- Prior art keywords
- touch
- electrode
- electrodes
- substrate
- size
- 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.)
- Pending
Links
- 239000000758 substrate Substances 0.000 title claims abstract description 52
- 230000006698 induction Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification 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
- G06F3/0412—Digitisers structurally integrated in a display
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
- G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
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 invention provides a touch substrate, a touch display panel and a touch display device, wherein the touch substrate comprises: a substrate base plate; the touch electrode groups are positioned on the substrate and distributed in an array manner, each touch electrode group comprises a first electrode and a plurality of second electrodes, and the second electrodes are arranged between the adjacent first electrodes; the minimum working touch size of the first electrode, the second electrode and the touch substrate meets the following constraint conditions: at any position on the touch substrate, the ratio of the minimum working touch size of the touch substrate to the overlapping area of at least one second electrode to the area of the second electrode is greater than a preset value. The electrode size design can be realized at any position on the touch substrate, and the overlapping area of the minimum working touch size and the electrode is ensured to be larger than a preset value, so that the touch detectability is ensured.
Description
Technical Field
The present invention relates to the field of touch technologies, and in particular, to a touch substrate, a touch display panel and a touch display device.
Background
At present, in the layout of a single-layer discontinuous touch pattern, electrodes and traces are on the same layer, so the distance between a transmitting electrode and a receiving electrode and the selection of the size of the transmitting electrode and the receiving electrode can make the interaction between the positioning of a smaller touch and surrounding electrodes smaller, thereby causing the touch signals of mutual and self-capacitance sensing to be weaker, and the problem of touch detection failure possibly caused by the small-size working touch size under the condition of low grounding quality.
Disclosure of Invention
The invention provides a touch substrate, a touch display panel and a touch display device, which are used for solving the problem that touch detection fails due to small-size working touch size under the condition of low grounding quality.
According to a first aspect of the present invention, there is provided a touch substrate comprising: a substrate base plate; the touch electrode groups are positioned on the substrate and distributed in an array manner, each touch electrode group comprises a first electrode and a plurality of second electrodes, and the second electrodes are arranged between the adjacent first electrodes; the minimum working touch size of the first electrode, the second electrode and the touch substrate meets the following constraint conditions: at any position on the touch substrate, the ratio of the minimum working touch size of the touch substrate to the overlapping area of at least one second electrode to the area of the second electrode is greater than a preset value.
In some embodiments, when the center of the minimum working touch size is located on the column center line of the first electrode and on the transverse symmetry axis of two adjacent second electrodes, the maximum overlapping area of the minimum working touch size and the overlapping areas of the plurality of second electrodes is the smallest.
In some embodiments, the constraint is:
wherein, a represents the overlapping area of the minimum working touch size and two adjacent second electrodes in the same touch electrode group, θ represents the corresponding central angle of a, R represents the radius of the minimum working touch size, L represents the distance between the center of the minimum working touch size and the side edge of the second electrode close to the first electrode, Xwidth represents the width of the first electrode, XYGap represents the gap width between the first electrode and the second electrode, MaxArea represents the maximum overlapping area of the minimum working touch size and the overlapping areas of the plurality of second electrodes, YYGap represents the gap width between the adjacent second electrodes, S represents the area of one second electrode, and μ represents the occupation ratio.
In some embodiments, the first electrode is a sensing electrode and the second electrode is a driving electrode; or the first electrode is a driving electrode, and the second electrode is an induction electrode.
In some embodiments, the number of the second electrodes arranged between every two adjacent first electrodes is 3 or 4.
In some embodiments, the number of the second electrodes between each adjacent two of the first electrodes is equal.
In some embodiments, in the column direction, the second electrodes in each two adjacent touch electrode groups are arranged in mirror symmetry.
In some embodiments, in each touch electrode group, the length of the first electrode in the column direction is the same or substantially the same as the length of the area occupied by the plurality of second electrodes located between two adjacent first electrodes in the column direction.
According to a second aspect of the present invention, there is provided a touch display panel, including the touch substrate described in any one of the above.
According to a third aspect of the present invention, the present invention provides a touch display device, comprising the touch display panel.
Compared with the prior art, the invention has the beneficial effects that: by designing the sizes of the first electrode and the second electrode, the ratio of the minimum working touch size of the touch substrate to the overlapping area of at least one second electrode and the area of the second electrode at any position on the touch substrate is larger than a preset value, so that the detectability of touch under the condition of low grounding quality is ensured.
Drawings
Fig. 1 is a schematic structural diagram of a touch substrate according to an embodiment of the invention.
Fig. 2 is a schematic diagram illustrating a partial structure of a touch electrode set according to an embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, an embodiment of the invention provides a touch substrate, which includes a touch substrate 11 and a touch electrode assembly 12.
A plurality of touch electrode groups 12 located on the substrate 11 and distributed in an array, each touch electrode group 12 includes a first electrode 121 and a plurality of second electrodes 122, and the second electrodes 122 are arranged between adjacent first electrodes 121. One first electrode 121 corresponds to a plurality of second electrodes 122, and an asymmetric electrode configuration mode is adopted, so that the touch failure area caused by the fact that the routing of the first electrode 121 and the second electrode 122 are distributed in a touch area can be reduced, and the requirements of electrode signal processing at the head end and the tail end can be met.
In some other embodiments, the number of the first electrodes 121 may be plural, and the number of the second electrodes 122 is 1; alternatively, the number of the first electrodes 121 is plural, and the number of the second electrodes 122 is also plural.
In the embodiment of the present invention, the minimum working touch size between the first electrode 121 and the second electrode 122 and the touch substrate satisfies the following constraint conditions: at any position on the touch substrate, the ratio of the minimum working touch size of the touch substrate to the overlapping area of at least one second electrode 122 to the area of the second electrode 122 is greater than a preset value. Wherein the radius of the minimum working touch size is less than or equal to 5mm, and the preset value is generally greater than or equal to 14%.
The first electrode 121 is an induction electrode, and the second electrode 122 is a driving electrode; or the first electrode 121 is a driving electrode, and the second electrode 122 is a sensing electrode.
Preferably, the number of the second electrodes 122 arranged between every two adjacent first electrodes 121 is 3 or 4, but is not limited thereto.
In the row direction, the number of the second electrodes 122 between each two adjacent first electrodes 121 is equal to ensure the consistency of the touch sensitivity.
In the column direction, the second electrodes 122 in each two adjacent touch electrode groups 12 are arranged in a mirror symmetry manner, or may be arranged in the same manner. Wherein the same second electrode 122 is connected to the pads using the same lead, a non-orthogonal or discontinuous single layer sensor pattern design is achieved to reduce the number of pads and simplify the scalability of the sensor.
Optionally, in each touch electrode group 12, the length of the first electrode 121 in the column direction is the same as or substantially the same as the length of the area occupied by the plurality of second electrodes 122 located between two adjacent first electrodes 121 in the column direction, so as to ensure that the first electrode 121 and the second electrode 122 effectively cover the touch area, and improve the touch sensitivity.
Referring to fig. 2, when the center of the minimum working touch size is located on the column center line of the first electrode and on the transverse symmetry axis of two adjacent second electrodes, the maximum overlapping area of the minimum working touch size and the overlapping areas of the plurality of second electrodes is the smallest. If the condition that the ratio of the minimum working touch size of the touch substrate to the overlapping area of a second electrode and the area of the second electrode is larger than a preset value at any position on the touch substrate is met, the detectability of touch under the condition of low grounding quality can be ensured.
Wherein the constraint condition is:
wherein, a represents the overlapping area of the minimum working touch size and two adjacent second electrodes in the same touch electrode group, θ represents the corresponding central angle of a, R represents the radius of the minimum working touch size, L represents the distance between the center of the minimum working touch size and the side edge of the second electrode close to the first electrode, Xwidth represents the width of the first electrode, XYGap represents the gap width between the first electrode and the second electrode, MaxArea represents the maximum overlapping area of the minimum working touch size and the overlapping areas of the plurality of second electrodes, YYGap represents the gap width between the adjacent second electrodes, S represents the area of one second electrode, and μ represents the occupation ratio.
The size of the electrode meeting the constraint condition ensures that the overlapping area of the minimum working touch size and the electrode is larger than a preset value at any position on the touch substrate under the condition of Low Ground Mass (LGM), thereby ensuring the detectability of touch.
In another aspect, an embodiment of the present invention further provides a touch display panel, where the touch display panel includes the touch substrate described in the above embodiment, and a display module is further disposed between the substrate and the touch unit, so as to implement a touch display function. In the touch substrate including the above embodiments, according to the touch substrate of the embodiments of the present invention, by designing the sizes of the first electrode and the second electrode, at any position on the touch substrate, the ratio of the minimum working touch size of the touch substrate to the overlapping area of the at least one second electrode to the area of the second electrode is greater than a preset value, so as to ensure the detectability of the touch under the condition of low grounding quality.
In another aspect, an embodiment of the present invention further provides a touch display device, where the touch display device includes the touch display panel described in the above embodiment, and the touch display device also has the beneficial effects of the touch display panel, and in order to avoid repetition, details are not repeated here.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The touch substrate, the touch display panel and the touch display device provided by the embodiments of the present invention are described in detail above, and a specific example is applied in the description to explain the principle and the implementation of the present invention, and the description of the embodiments above is only used to help understanding the technical scheme and the core concept of the present invention; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A touch substrate, comprising:
a substrate base plate;
the touch electrode groups are positioned on the substrate and distributed in an array manner, each touch electrode group comprises a first electrode and a plurality of second electrodes, and the second electrodes are arranged between the adjacent first electrodes;
the minimum working touch size of the first electrode, the second electrode and the touch substrate meets the following constraint conditions: at any position on the touch substrate, the ratio of the minimum working touch size of the touch substrate to the overlapping area of at least one second electrode to the area of the second electrode is greater than a preset value.
2. The touch substrate of claim 1, wherein when a center of a minimum working touch size is located on a column center line of the first electrodes and on a lateral symmetry axis of two adjacent second electrodes, a maximum overlapping area of the minimum working touch size and overlapping areas of the plurality of second electrodes is minimized.
3. The touch substrate of claim 1, wherein the constraint condition is:
wherein, a represents the overlapping area of the minimum working touch size and two adjacent second electrodes in the same touch electrode group, θ represents the corresponding central angle of a, R represents the radius of the minimum working touch size, L represents the distance between the center of the minimum working touch size and the side edge of the second electrode close to the first electrode, Xwidth represents the width of the first electrode, XYGap represents the gap width between the first electrode and the second electrode, MaxArea represents the maximum overlapping area of the minimum working touch size and the overlapping areas of the plurality of second electrodes, YYGap represents the gap width between the adjacent second electrodes, S represents the area of one second electrode, and μ represents the occupation ratio.
4. The touch substrate of claim 1, wherein the first electrode is a sensing electrode and the second electrode is a driving electrode; or the first electrode is a driving electrode, and the second electrode is an induction electrode.
5. The touch substrate of claim 1, wherein the number of the second electrodes arranged between every two adjacent first electrodes is 3 or 4.
6. The touch substrate of claim 1, wherein the number of the second electrodes between every two adjacent first electrodes is equal in the row direction.
7. The touch substrate of claim 1, wherein the second electrodes of each two adjacent touch electrode groups are arranged in a mirror symmetry manner in the column direction.
8. The touch substrate of claim 1, wherein in each touch electrode group, the length of the first electrode in the column direction is the same or substantially the same as the length of an area occupied by the plurality of second electrodes located between two adjacent first electrodes in the column direction.
9. A touch display panel comprising the touch substrate according to any one of claims 1 to 8.
10. A touch display device comprising the touch display panel according to claim 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011580640.6A CN112578944A (en) | 2020-12-28 | 2020-12-28 | Touch substrate, touch display panel and touch display device |
| PCT/CN2021/136214 WO2022143050A1 (en) | 2020-12-28 | 2021-12-07 | Touch-control substrate, touch-control display panel and touch-control display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011580640.6A CN112578944A (en) | 2020-12-28 | 2020-12-28 | Touch substrate, touch display panel and touch display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112578944A true CN112578944A (en) | 2021-03-30 |
Family
ID=75140215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011580640.6A Pending CN112578944A (en) | 2020-12-28 | 2020-12-28 | Touch substrate, touch display panel and touch display device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112578944A (en) |
| WO (1) | WO2022143050A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022143050A1 (en) * | 2020-12-28 | 2022-07-07 | 北京奕斯伟计算技术有限公司 | Touch-control substrate, touch-control display panel and touch-control display device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014178577A1 (en) * | 2013-04-29 | 2014-11-06 | 크루셜텍 주식회사 | Touch detection device |
| CN103677468B (en) * | 2013-11-20 | 2017-04-12 | 敦泰科技有限公司 | Single-layer capacitive touch screen, corresponding touch control device, method and electronic device |
| TWI543053B (en) * | 2014-06-19 | 2016-07-21 | 晨星半導體股份有限公司 | Touch control device |
| CN105912176B (en) * | 2016-03-31 | 2018-12-18 | 成都京东方光电科技有限公司 | A kind of touch electrode structure, touch screen and display device |
| CN112578944A (en) * | 2020-12-28 | 2021-03-30 | 北京奕斯伟计算技术有限公司 | Touch substrate, touch display panel and touch display device |
| CN214202328U (en) * | 2020-12-28 | 2021-09-14 | 北京奕斯伟计算技术有限公司 | Touch substrate, touch display panel and touch display device |
-
2020
- 2020-12-28 CN CN202011580640.6A patent/CN112578944A/en active Pending
-
2021
- 2021-12-07 WO PCT/CN2021/136214 patent/WO2022143050A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022143050A1 (en) * | 2020-12-28 | 2022-07-07 | 北京奕斯伟计算技术有限公司 | Touch-control substrate, touch-control display panel and touch-control display device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022143050A1 (en) | 2022-07-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11061518B2 (en) | Touch substrate and manufacturing method thereof, touch display panel | |
| US10761359B2 (en) | Touch display device | |
| WO2016119323A1 (en) | Array substrate, embedded touch screen and display device | |
| US10942591B2 (en) | Touch display panel and touch display device | |
| KR102149498B1 (en) | Touch screen panel | |
| WO2017154443A1 (en) | Touch panel and display device | |
| JP6186058B2 (en) | Electronic device and its single layer mutual capacitive touch screen | |
| JP2015141712A (en) | touch panel | |
| TWI483149B (en) | Touch panel | |
| CN109063631B (en) | Display panel and display device | |
| JP2019102090A (en) | Touch/fingerprint composite sensor and electronic device including touch/fingerprint composite sensor | |
| US20200348787A1 (en) | Flexible touch panel and display apparatus | |
| CN214202328U (en) | Touch substrate, touch display panel and touch display device | |
| CN112578944A (en) | Touch substrate, touch display panel and touch display device | |
| CN113296640A (en) | Touch control display panel | |
| EP4105769A1 (en) | Touch control display substrate and touch control display apparatus | |
| CN108762550B (en) | Touch display substrate, touch display method and touch display device | |
| TW201329834A (en) | Touch panel | |
| CN113076030A (en) | Display panel and display device | |
| CN112527159A (en) | Touch substrate and display device | |
| US9817525B2 (en) | Touch panel | |
| CN112631460A (en) | Touch substrate, touch display panel and touch display device | |
| CN210295066U (en) | Single-layer projected capacitive touch sensor with double bridge connection areas | |
| CN111736727A (en) | Mutual capacitance type touch substrate and display panel | |
| CN110888562A (en) | Touch panel |
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 | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 100176 no.2179, 2 / F, building D, 33, 99 Kechuang 14th Street, Beijing Economic and Technological Development Zone, Beijing (centralized office area) Applicant after: Beijing ESWIN Computing Technology Co.,Ltd. Address before: 100176 no.2179, 2 / F, building D, 33, 99 Kechuang 14th Street, Beijing Economic and Technological Development Zone, Beijing (centralized office area) Applicant before: Beijing yisiwei Computing Technology Co.,Ltd. |