CN109669571B - Touch panel and electronic device - Google Patents
Touch panel and electronic device Download PDFInfo
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- CN109669571B CN109669571B CN201811521303.2A CN201811521303A CN109669571B CN 109669571 B CN109669571 B CN 109669571B CN 201811521303 A CN201811521303 A CN 201811521303A CN 109669571 B CN109669571 B CN 109669571B
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- electrode
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- lead
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- 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
- G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/045—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04111—Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate
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- 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 panel and an electronic device, wherein the touch panel comprises a substrate and a touch layer; the touch layer comprises an electrode unit which comprises a first electrode and a second electrode; the resistance values of the first electrode or/and the second electrode are in a correlation relation with the deformation quantity of the touch panel. According to the touch panel, the deformation quantity of the touch panel is obtained through the resistance value variation quantity of the first electrode, so that the pressure sensing function is realized; the second electrode and the first electrode form a capacitance structure, so that touch operation of a user can be determined based on capacitance change, touch and pressure touch are realized simultaneously, and the technical problem that the pressure sensing function can be realized only by adding a pressure sensing layer in the conventional terminal is solved; meanwhile, the touch lead does not occupy the distance of the frame, and the narrow frame design is realized.
Description
Technical Field
The present invention relates to the field of touch control, and in particular, to a touch panel and an electronic device.
Background
With the development of mobile phone technology, terminal products such as mobile phones support functions such as touch control and pressure sensing.
In the prior art, in order to realize touch control and pressure sensing functions, a touch control layer is required to be arranged in the terminal to realize the touch control function, and a pressure sensing layer is required to realize the pressure sensing function.
The technical problem that the pressure sensing function can be realized only by adding the pressure sensing layer in the conventional terminal is solved.
Disclosure of Invention
The invention provides a touch panel and an electronic device, which are used for solving the technical problem that the pressure sensing function can be realized only by adding a pressure sensing layer in the conventional terminal.
In order to solve the above problems, the technical scheme provided by the invention is as follows:
the invention provides a touch panel, which comprises:
a substrate;
a touch layer on the substrate, the touch layer including at least two electrode units, two adjacent electrode units being arranged in an insulating manner,
the electrode unit includes:
a first electrode on the substrate;
the second electrode is positioned on the substrate, and the first electrode and the second electrode are arranged in an insulating way;
the resistance values of the first electrode or/and the second electrode are in a correlation relation with the deformation quantity of the touch panel.
In the touch panel of the present application, the first electrode includes at least one first branch, and a resistance value of the first branch is positively correlated to a deformation amount of the touch panel.
In the touch panel of the present application, the second electrode includes at least one second branch, and a resistance value of the second branch is in positive correlation with a deformation amount of the touch panel.
In the touch panel of the present application, the second branch or/and the first branch is a conductive loop formed by a hollow conductive wire, and is disposed in a staggered spiral manner.
In the touch panel of the present application, orthographic projections of the first branch and the second branch on the surface of the touch panel do not overlap.
In the touch panel of the present application, the touch layer includes at least two electrode units distributed in an array;
the forward projection areas of the electrode units on the surface of the touch panel in the first direction are equal;
the forward projection area of the electrode unit on the surface of the touch panel in the second direction gradually decreases or increases.
In the touch panel of the present application, the electrode unit further includes at least:
the first touch lead is electrically connected with the first electrode;
the second touch lead is electrically connected with the second electrode;
the first touch lead and the second touch lead of each electrode unit are insulated and arranged in parallel.
In the touch panel of the present application, the first electrode, the second electrode, the first touch lead, and the second touch lead are disposed on the same layer.
In the touch panel of the present application, the first electrode is one of an induction electrode and a driving electrode, and the second electrode is the other electrode different from the first electrode.
The invention further provides an electronic device, wherein the electronic device comprises the touch panel.
Has the advantages that: according to the touch panel, the deformation quantity of the touch panel is obtained through the resistance value variation quantity of the first electrode, so that the pressure sensing function is realized; the second electrode and the first electrode form a capacitance structure, so that touch operation of a user can be determined based on capacitance change, touch and pressure touch are realized simultaneously, and the technical problem that the pressure sensing function can be realized only by adding a pressure sensing layer in the conventional terminal is solved; meanwhile, the touch lead does not occupy the distance of the frame, and the narrow frame design is realized.
Drawings
In order to illustrate the embodiments or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for a person skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a diagram illustrating a touch layer according to the present disclosure;
fig. 2 is a structural diagram of an electrode unit in a touch panel according to the present application.
Detailed Description
The following description of the various embodiments refers to the accompanying drawings that illustrate specific embodiments in which the invention may be practiced. The directional terms mentioned in the present invention, such as [ upper ], [ lower ], [ front ], [ rear ], [ left ], [ right ], [ inner ], [ outer ], [ side ], are only referring to the directions of the attached drawings. Accordingly, the directional terms used are used for explanation and understanding of the present invention, and are not used for limiting the present invention. In the drawings, elements having similar structures are denoted by the same reference numerals.
Referring to fig. 1, fig. 1 is a structural diagram of a touch layer according to the present application.
The touch panel includes:
a substrate (not shown), which may be conductive glass.
A touch layer 100 on the substrate, the touch layer 100 including a plurality of electrode units 10. The number of the electrode units 10 is 2 or more, and the specific number is not limited in the present application.
In one embodiment, two adjacent electrode units 10 are insulated.
In one embodiment, the electrode units 10 are distributed in an array on the touch layer 100.
Referring to fig. 1, the present application is illustrated with electrode units 10 distributed in an array of 3X 3.
The touch layer 100 includes 9 electrode units 10 distributed in an array.
In one embodiment, the forward projection areas of the electrode units 10 on the surface of the touch panel are equal in the first direction.
In one embodiment, in the second direction, the orthographic projection area of the electrode unit 10 on the surface of the touch panel is gradually decreased or increased. In the embodiment, in the direction from the electrode unit 10 to the touch chip 30, the orthographic projection area of the electrode unit 10 on the surface of the touch panel is gradually reduced.
In one embodiment, the first direction is a horizontal direction and the second direction is a vertical direction.
The touch layer 100 further includes touch leads 20.
In one embodiment, the touch lead 20 is electrically connected to the electrode unit 10. The electrode unit 10 is electrically connected to the touch chip 30 through the touch lead 20 for signal transmission.
In one embodiment, one of the touch leads 20 is electrically connected to one of the electrode units 10.
The touch lead can be directly arranged below the electrode unit, does not occupy the distance of the frame, and achieves narrow frame design.
Referring to fig. 2, fig. 2 is a structural diagram of an electrode unit 10 in a touch panel according to the present application.
The electrode unit 10 includes:
a first electrode 101 on the substrate.
A second electrode 102 on the substrate.
In one embodiment, the first electrode 101 is insulated from the second electrode 102.
In one embodiment, the first electrode 101 and the second electrode 102 form a capacitor structure. The touch operation of the user can be determined based on the capacitance change of the capacitance structure formed by the first electrode 101 and the second electrode 102.
In one embodiment, the resistance of the first electrode 101 or/and the second electrode 102 is related to the deformation of the touch panel.
In one embodiment, the correlation relationship includes a positive correlation and a negative correlation, and the positive correlation means that the larger the deformation amount of the touch panel is, the larger the resistance of the first electrode 101 or/and the second electrode 102 is. The negative correlation means that the larger the deformation amount of the touch panel is, the smaller the resistance of the first electrode 101 or/and the second electrode 102 is, and both correlation relations can realize the pressure sensing function.
Referring to fig. 2, the first electrode 101 includes at least one first branch 1010 having a positive correlation with the deformation of the touch panel.
In one embodiment, the first branch 1010 may be a conductive loop formed by a hollow wire.
In one embodiment, the first leg 1010 is convolutely disposed.
The second electrode 102 further includes at least one second branch 1020 having a resistance value positively correlated to the deformation of the touch panel.
In one embodiment, the second branch 1020 may be a conductive loop formed by a central control wire or a solid wire. The second branch 1020 in this embodiment is a solid wire.
In one embodiment, the second branch 1020 is convolutely disposed.
In one embodiment, the first branch 1010 and the second branch 1020 are arranged in a staggered spiral.
In one embodiment, the first branch 1010 and the second branch 1020 may be straight lines, arcs, or a combination of shapes.
In one embodiment, the orthographic projections of the first branch 1010 and the second branch 1020 on the touch panel surface do not overlap.
Referring to fig. 2, the touch lead 20 connected to the electrode unit 10 includes two first touch leads 201, two second touch leads 202, a first touch lead 201 electrically connected to two first branches 1010 of the first electrodes 101, and a second touch lead 202 electrically connected to a second branch 1020 of the second electrodes 102.
In one embodiment, the first touch lead 201 and the second touch lead 202 of each electrode unit 10 are insulated and arranged in parallel.
In one embodiment, the first electrode 101, the second electrode 102, the first touch lead 201, and the second touch lead 202 are disposed in the same layer.
On the basis of fig. 2, the present application further includes:
the first electrode 101 and the second electrode 102 are located on different film layers. An insulating layer is disposed between the first electrode 101 and the second electrode 102. This solution is not specifically developed in the description.
The first electrode 101 is one of a sensing electrode and a driving electrode, and the second electrode 102 is the other different from the first electrode 101.
In one embodiment, the first electrode 101 and the second electrode 102 are transparent metals.
The present application will now be further described with reference to specific application scenarios.
Referring to fig. 1 and 2, the touch layer 100 has a metal layer patterned to form electrode units 10 distributed in an array. Each of the electrode units 10 includes a first electrode 101 and a second electrode 102. The first electrode 101 is a sensing electrode, and the second electrode 102 is a driving electrode.
The driving electrode and the induction electrode are intertwined to form a spiral shape. The driving electrode and the induction electrode are separated by an insulating layer and are used for accurately identifying the pressure signal of the touch signal machine of the finger.
And a capacitor is formed between the driving electrode and the induction electrode so as to realize the touch control function. When the external induction is received, a capacitor is formed between the driving electrode and the induction electrode. When the finger is close to the touch panel, the capacitance value changes, and the finger position can be accurately detected according to the capacitance change
Each of the induction electrodes is of a hollow design so as to form a conductive loop. When the finger is pressed by the external finger, the sensing electrode generates a strain effect, the impedance of the sensing electrode changes, and the finger pressure is detected according to the impedance change.
The pressure sensing function of the embodiment works according to the following principle:
when a finger touches the screen, the mutual capacitance type touch control functional part feeds back the position of the coordinate point, the pressure sensing touch control functional part feeds back the pressure, and the coordinate and pressure signal of the touch point can be detected by combining the feedback signals of the two parts.
When a finger presses the screen, the impedance of the electrode unit changes, the pressure sensing function is activated, mutual capacitance type touch control enters a dormant state, and the pressure can be determined by combining the variable quantity of the impedance of the sensing electrode.
According to still another aspect of the present invention, there is also provided an electronic apparatus including the touch panel; the electronic device includes, but is not limited to, a mobile phone, a tablet computer, a computer monitor, a game machine, a television, a display screen, a wearable device, and other life appliances or household appliances with display functions.
The working principle of the electronic device is similar to that of the touch panel, and reference may be made to the working principle of the touch substrate, which is not described herein again.
The invention provides a touch panel and an electronic device, wherein the touch panel comprises a substrate and a touch layer; the touch layer comprises an electrode unit which comprises a first electrode and a second electrode; the resistance values of the first electrode or/and the second electrode are in a correlation relation with the deformation quantity of the touch panel. According to the touch panel, the deformation quantity of the touch panel is obtained through the resistance value variation quantity of the first electrode, so that the pressure sensing function is realized; the second electrode and the first electrode form a capacitance structure, so that touch operation of a user can be determined based on capacitance change, touch and pressure touch are realized simultaneously, and the technical problem that the pressure sensing function can be realized only by adding a pressure sensing layer in the conventional terminal is solved; meanwhile, the touch lead does not occupy the distance of the frame, and the narrow frame design is realized.
In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, therefore, the scope of the present invention shall be determined by the appended claims.
Claims (9)
1. A touch panel, comprising:
a substrate;
the touch layer is positioned on the substrate and comprises at least two electrode units, and every two adjacent electrode units are arranged in an insulating manner;
the electrode unit includes:
a first electrode on the substrate;
the second electrode is positioned on the substrate, and the first electrode and the second electrode are arranged in an insulating way;
the resistance values of the first electrode or/and the second electrode are in a correlation relation with the deformation quantity of the touch panel;
the first electrode comprises at least one first branch, the resistance value of the first branch is in positive correlation with the deformation quantity of the touch panel, and the first branch is a conductive loop formed by a hollow lead.
2. The touch panel of claim 1, wherein the second electrode comprises at least one second branch, and a resistance value of the second branch is positively correlated to a deformation of the touch panel.
3. The touch panel of claim 2, wherein the second branch is a conductive loop formed by a hollow conductive wire and is disposed in a staggered spiral manner with the first branch.
4. The touch panel of claim 2, wherein orthographic projections of the first branch and the second branch on the touch panel surface do not overlap.
5. The touch panel of claim 1, wherein the touch layer comprises at least two electrode units arranged in an array;
in a first direction, the orthographic projection areas of the electrode units on the surface of the touch panel are equal;
in a second direction, the orthographic projection area of the electrode unit on the surface of the touch panel is gradually reduced or increased.
6. The touch panel according to claim 1, wherein the electrode unit further comprises at least:
the first touch lead is electrically connected with the first electrode;
the second touch lead is electrically connected with the second electrode;
the first touch lead and the second touch lead of each electrode unit are insulated and arranged in parallel.
7. The touch panel of claim 6, wherein the first electrode, the second electrode, the first touch lead, and the second touch lead are disposed in the same layer.
8. The touch panel according to claim 1, wherein the first electrode is one of a sense electrode and a drive electrode, and the second electrode is the other electrode different from the first electrode.
9. An electronic device comprising the touch panel according to claims 1 to 8.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811521303.2A CN109669571B (en) | 2018-12-12 | 2018-12-12 | Touch panel and electronic device |
| PCT/CN2019/071553 WO2020118837A1 (en) | 2018-12-12 | 2019-01-14 | Touch control panel and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811521303.2A CN109669571B (en) | 2018-12-12 | 2018-12-12 | Touch panel and electronic device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109669571A CN109669571A (en) | 2019-04-23 |
| CN109669571B true CN109669571B (en) | 2020-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811521303.2A Active CN109669571B (en) | 2018-12-12 | 2018-12-12 | Touch panel and electronic device |
Country Status (2)
| Country | Link |
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| CN (1) | CN109669571B (en) |
| WO (1) | WO2020118837A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110196655B (en) * | 2019-05-14 | 2023-11-28 | 武汉华星光电半导体显示技术有限公司 | Pressure sensing touch screen and input device comprising same |
| CN110825260B (en) * | 2019-10-12 | 2021-06-01 | 武汉华星光电半导体显示技术有限公司 | Touch display device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106569631A (en) * | 2016-10-19 | 2017-04-19 | 京东方科技集团股份有限公司 | Pressure sensing substrate and pressure sensing touch screen |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160109307A1 (en) * | 2014-10-17 | 2016-04-21 | Qualcomm Incorporated | System and method for spiral contact force sensors |
| CN104699312B (en) * | 2015-04-01 | 2017-08-08 | 上海天马微电子有限公司 | Touch screen display panel and electronic equipment |
| CN105426005B (en) * | 2015-09-30 | 2018-09-28 | 宸鸿科技(厦门)有限公司 | three-dimensional touch panel |
| KR102473527B1 (en) * | 2015-12-21 | 2022-12-01 | 엘지디스플레이 주식회사 | Electronic device |
| KR102555596B1 (en) * | 2016-06-21 | 2023-07-17 | 삼성디스플레이 주식회사 | Electronic apparatus |
| US10691245B2 (en) * | 2016-06-22 | 2020-06-23 | Samsung Display Co., Ltd. | Touch sensor |
| CN206003074U (en) * | 2016-07-22 | 2017-03-08 | 深圳亿和源科技有限公司 | There is the mobile terminal of high sensitivity touch screen |
| CN107491206B (en) * | 2017-08-01 | 2020-10-16 | 上海天马微电子有限公司 | Display panel and display device |
| CN207557906U (en) * | 2017-12-13 | 2018-06-29 | 南昌欧菲显示科技有限公司 | Pressure sensitive module, touching display screen and touch-controlled electronic devices |
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2018
- 2018-12-12 CN CN201811521303.2A patent/CN109669571B/en active Active
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2019
- 2019-01-14 WO PCT/CN2019/071553 patent/WO2020118837A1/en active Application Filing
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106569631A (en) * | 2016-10-19 | 2017-04-19 | 京东方科技集团股份有限公司 | Pressure sensing substrate and pressure sensing touch screen |
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| Publication number | Publication date |
|---|---|
| WO2020118837A1 (en) | 2020-06-18 |
| CN109669571A (en) | 2019-04-23 |
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