CN106896964B - Pressure touch display panel and pressure touch display device - Google Patents
Pressure touch display panel and pressure touch display device Download PDFInfo
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- CN106896964B CN106896964B CN201710215980.0A CN201710215980A CN106896964B CN 106896964 B CN106896964 B CN 106896964B CN 201710215980 A CN201710215980 A CN 201710215980A CN 106896964 B CN106896964 B CN 106896964B
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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
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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
- G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
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- General Engineering & Computer Science (AREA)
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- Position Input By Displaying (AREA)
Abstract
A pressure touch display panel comprises a plurality of touch electrodes and a plurality of pressure induction electrodes. The areas of the touch electrodes are equal, and the areas of the pressure sensing electrodes are equal. The pressure sensing electrode and the touch electrode are both arranged on the same film layer. At least two touch electrodes are arranged around each pressure sensing electrode, and the number of the touch electrodes arranged around each pressure sensing electrode is equal. Therefore, pressure induction is realized, and meanwhile, the same basic capacity value and balanced charging load of each touch electrode in the pressure touch display panel are ensured, so that the control chip can more accurately identify and filter the touch noise in the process of calculating and filtering the touch noise, the signal to noise ratio is improved, the integral touch performance of the pressure touch display panel is stable, the uniformity is good, good operation experience is brought to a user, and the satisfaction degree of the human-computer interaction experience of the user is higher.
Description
Technical Field
The present invention relates to the field of display, and in particular, to a pressure touch display panel and a pressure touch display device.
Background
The pressure sensing technology is a technology capable of detecting external stress, and the technology is applied to the fields of industrial control, medical treatment and the like for a long time. Currently, many manufacturers are seeking a suitable scheme to implement pressure sensing touch in the display field, especially in the field of mobile phones or flat panel displays, so that the display device can sense the pressure of a user on the screen, and implement more touch operation functions, thereby enabling the user to obtain better human-computer interaction experience.
In the prior art, a pressure touch display device manufactured by using a pressure sensing technology is generally implemented by integrating a pressure sensing electrode in the existing pressure touch display device. If a layer of pressure sensing electrode is additionally arranged in the pressure touch display device, the thickness of the pressure touch display device is increased, and in order not to increase the thickness of the pressure touch display device, the pressure sensing electrode is generally embedded into a touch electrode (the touch electrode is used for realizing position touch) in the pressure touch display device, so that the pressure sensing touch electrode and the touch electrode are arranged on the same layer, and the thickness of the pressure touch display device is not additionally increased.
As shown in fig. 1, in the prior art, only one pressure sensing electrode is disposed in one of the touch electrodes in the area corresponding to the plurality of touch electrodes. However, only a part of the touch electrodes of the pressure touch display panel are provided with the pressure sensing electrodes, and the other part of the touch electrodes are not provided with the pressure sensing electrodes, which may cause the areas of the touch electrodes in the pressure touch display panel to be unequal, and further cause the basic capacitance values of the touch electrodes in the pressure touch display panel to have differences and unbalanced charging loads, and finally may also affect the uniformity of the overall touch performance of the pressure touch display panel, thereby bringing about poor operation experience to users.
Disclosure of Invention
The invention aims to provide a pressure touch display panel and a pressure touch display device which integrate a pressure sensing function, can realize touch performance uniformity and bring good touch experience to users.
In a first aspect, a pressure touch display panel is provided, including:
the touch control device comprises a plurality of touch control electrodes, a touch control unit and a control unit, wherein the areas of the touch control electrodes are equal;
the area of each pressure sensing electrode is equal, and the pressure sensing electrodes and the touch control electrodes are arranged on the same film layer;
at least two touch electrodes are arranged around each pressure sensing electrode, and the number of the touch electrodes arranged around each pressure sensing electrode is equal.
Optionally, the number of the pressure sensing electrodes is smaller than the number of the touch electrodes.
Optionally, the number of the pressure sensing electrodes is one fourth of the number of the touch electrodes.
Optionally, each of the pressure sensing electrodes is in an axisymmetric pattern; the touch control electrodes surrounding the periphery of each pressure sensing electrode are in an axisymmetric relationship and share the same symmetry axis with the pressure sensing electrodes.
Optionally, each of the pressure sensing electrodes is a centrosymmetric pattern; the touch control electrodes surrounding the periphery of each pressure sensing electrode are in central symmetry, and share the same symmetry center with the pressure sensing electrodes.
Optionally, the area of each pressure sensing electrode is smaller than the area of each touch electrode.
Optionally, the touch electrode is time-division multiplexed as a common electrode, and in a touch time period, the touch electrode inputs a touch signal; in a display time interval, the touch electrode inputs a common voltage signal.
Optionally, each of the touch electrodes is polygonal.
Optionally, each touch electrode is trapezoidal, a short bottom edge of each touch electrode is adjacent to one edge of the pressure sensing electrode in parallel, and a long bottom edge of each touch electrode is adjacent to a long bottom edge of another touch electrode in parallel.
Optionally, each touch electrode is connected to at least one touch trace, and the touch trace is used for transmitting a touch signal.
Optionally, each pressure sensing electrode is connected to at least one pressure sensing trace, and the pressure sensing trace is used for transmitting a pressure sensing signal.
Optionally, the touch electrode and the pressure sensing electrode are made of indium tin oxide.
In a second aspect, a pressure touch display device is provided, which comprises the pressure touch display panel according to the first aspect.
Compared with the prior art, all be provided with at least two around the forced induction electrode of pressure touch-control display panel the touch-control electrode, and every the quantity of the touch-control electrode that sets up around the forced induction electrode equals, every the area of touch-control electrode equals, has guaranteed like this when realizing forced induction the basis appearance value of each touch-control electrode is the same and the charging load is balanced in the pressure touch-control display panel, and then makes control chip can more accurately discern and filtering the noise at the in-process of calculating and filtering touch-control noise, has improved the SNR, just also makes the whole touch-control performance of pressure touch-control display panel is stable and the homogeneity is good, brings good operation experience for the user for user's human-computer interaction experience satisfaction is higher.
Drawings
FIG. 1 is a schematic top view of a prior art pressure touch display panel;
fig. 2 is a schematic top view of a pressure touch display panel according to an embodiment of the invention;
fig. 3 is a schematic top view of a pressure touch display panel according to another embodiment of the present invention;
fig. 4 is a schematic top view of a pressure touch display panel according to yet another embodiment of the present invention;
fig. 5 is a pressure touch display device in another embodiment of the present invention.
Description of reference numerals:
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures. The described embodiments are only some embodiments of the invention, not all embodiments. 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.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Next, the present invention is described in detail with reference to the schematic drawings, and in the detailed description of the embodiments of the present invention, the schematic drawings showing the device structure are not enlarged partially according to the general scale for convenience of illustration, and the schematic drawings are only examples, which should not limit the scope of the present invention.
In an embodiment of the present invention, a pressure touch display panel is provided, and referring to fig. 2, the pressure touch display panel includes a plurality of touch electrodes 10 and a plurality of pressure sensing electrodes 20. The pressure sensing electrode 20 and the touch electrode 10 are both disposed on the same film layer.
With reference to fig. 2, the areas of the touch electrodes 10 in the pressure touch display panel are all equal. Each of the touch electrodes 10 is connected to at least one touch trace 30, the other end of the touch trace 30 is connected to a control chip IC (not shown), and the touch trace 30 is used for transmitting a touch signal. The touch electrode 10 is multiplexed into a common electrode in a time-sharing manner, and a touch signal is input into the touch electrode 10 in a touch time period; in the display period, the touch electrode 10 inputs a common voltage signal.
With reference to fig. 2, the areas of the pressure sensing electrodes 20 in the pressure touch display panel are all equal. At least two touch electrodes 10 are arranged around each pressure sensing electrode 20, and the number of the touch electrodes 10 arranged around each pressure sensing electrode 20 is equal. The number of the pressure sensing electrodes 20 in the pressure touch display panel is less than that of the touch electrodes 10. Optionally, the number of the pressure sensing electrodes 20 is one fourth of the number of the touch electrodes 10. The area of each pressure sensing electrode 20 is smaller than that of each touch electrode 10. Optionally, each pressure sensing electrode 20 is in an axisymmetric pattern, the plurality of touch electrodes 10 surrounding each pressure sensing electrode 20 are in an axisymmetric relationship, and share the same symmetry axis with the pressure sensing electrode 20; optionally, each of the pressure-sensing electrodes 20 is a central symmetric pattern, and the plurality of touch electrodes 10 surrounding each of the pressure-sensing electrodes 20 are in a central symmetric relationship and share the same symmetric center with the pressure-sensing electrode 20. As shown in fig. 2 or 3, each of the touch electrodes 10 may be polygonal, each of the pressure sensing electrodes 20 is rectangular, the touch electrodes 10 are disposed around the pressure sensing electrode 20, and each side of the pressure sensing electrode 20 is parallel to and adjacent to one side of one of the touch electrodes 10. Referring to fig. 2, each of the pressure sensing electrodes 20 is connected to at least one pressure sensing trace 40, and the pressure sensing trace 40 is used for transmitting a pressure sensing signal. The touch electrode 10 and the pressure sensing electrode 20 are made of indium tin oxide.
In another embodiment of the present invention, as shown in fig. 4, each of the touch electrodes 10 is trapezoidal, the short bottom edge 11 of each of the touch electrodes 10 is adjacent to one edge of the pressure sensing electrode 20 in parallel, and the long bottom edge 12 of each of the touch electrodes 10 is adjacent to the long bottom edge 12 of another one of the touch electrodes 10 in parallel. Each of the touch electrodes 10 is connected to at least one touch trace (not shown), and each of the pressure sensing electrodes 20 is connected to at least one pressure sensing trace (not shown).
In another embodiment of the present invention, a pressure touch display device is provided, please refer to fig. 5, which includes any one of the pressure touch display panels described above.
Compared with the prior art, all be provided with at least two around the forced induction electrode of pressure touch-control display panel the touch-control electrode, and every the quantity of the touch-control electrode that sets up around the forced induction electrode equals, every the area of touch-control electrode equals, has guaranteed like this when realizing forced induction the same and charging load of the basis appearance value of each touch-control electrode is balanced in the pressure touch-control display panel, and then makes control chip can more accurately discern and filtering the noise at the in-process of calculating and filtering the touch-control noise, has improved the SNR. The quantity of forced induction electrode is less than the quantity of touch-control electrode, the quantity of forced induction electrode is the quarter of the quantity of touch-control electrode, because control chip's AD passageway quantity is limited, and forced induction only need listen the pressure size of pressing, need not the position of location accuracy, consequently need not set up high density touch-control electrode like the touch-control function and realize accurate positioning, forced induction electrode quantity only need touch-control electrode quantity about the quarter can satisfy the demand, when satisfying forced induction like this, avoided control chip AD passageway quantity to increase by a wide margin as far as possible, practiced thrift the cost. The area of each pressure sensing electrode is smaller than that of each touch electrode, so that the pressure touch display panel integrates a pressure sensing function and does not need to obviously sacrifice a conventional touch function, and the touch function is minimally influenced as much as possible. The pressure touch display panel is stable in overall touch performance and good in uniformity, and brings good operation experience to users, so that the satisfaction degree of human-computer interaction experience of the users is higher.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto, and those skilled in the art can make possible variations and modifications of the present invention using the above-described methods and techniques without departing from the spirit and scope of the present invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention, unless the content of the technical solution of the present invention is departed from.
Claims (9)
1. A pressure touch display panel, comprising:
the touch control device comprises a plurality of touch control electrodes, a touch control unit and a control unit, wherein the areas of the touch control electrodes are equal;
the area of each pressure sensing electrode is equal, and the pressure sensing electrodes and the touch control electrodes are arranged on the same film layer;
at least two touch electrodes are arranged around each pressure sensing electrode, and the number of the touch electrodes arranged around each pressure sensing electrode is equal;
each touch electrode is connected with at least one touch wire, and the touch wires are used for transmitting touch signals;
each pressure sensing electrode is connected with at least one pressure sensing wire, and the pressure sensing wire is used for transmitting pressure sensing signals;
each pressure sensing electrode is in a centrosymmetric pattern;
the touch control electrodes surrounding the periphery of each pressure sensing electrode are in central symmetry, and share the same symmetry center with the pressure sensing electrodes.
2. The pressure touch display panel of claim 1, wherein the number of pressure sensing electrodes is less than the number of touch electrodes.
3. The pressure touch display panel of claim 2, wherein the number of pressure sensing electrodes is one-fourth of the number of touch electrodes.
4. The pressure touch display panel of claim 1, wherein the area of each pressure sensing electrode is smaller than the area of each touch electrode.
5. The pressure touch display panel of claim 1, wherein the touch electrode is time-multiplexed as a common electrode, and the touch electrode inputs a touch signal during a touch period; in a display time interval, the touch electrode inputs a common voltage signal.
6. The pressure touch display panel of claim 1, wherein each of the touch electrodes is polygonal.
7. The pressure touch display panel of claim 6, wherein each touch electrode is trapezoidal, the short bottom edge of each touch electrode is adjacent to one edge of the pressure sensing electrode in parallel, and the long bottom edge of each touch electrode is adjacent to the long bottom edge of another touch electrode in parallel.
8. The pressure touch display panel of claim 1, wherein the touch electrodes and the pressure sensing electrodes are made of indium tin oxide.
9. A pressure touch display device, comprising the pressure touch display panel according to claims 1-8.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710215980.0A CN106896964B (en) | 2017-04-01 | 2017-04-01 | Pressure touch display panel and pressure touch display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710215980.0A CN106896964B (en) | 2017-04-01 | 2017-04-01 | Pressure touch display panel and pressure touch display device |
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| CN106896964A CN106896964A (en) | 2017-06-27 |
| CN106896964B true CN106896964B (en) | 2020-04-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109240538A (en) * | 2018-09-03 | 2019-01-18 | 上海中航光电子有限公司 | Display panel and display device |
| TWI727817B (en) * | 2020-05-29 | 2021-05-11 | 中原大學 | Haptic feedback module |
| CN114201077A (en) * | 2021-12-17 | 2022-03-18 | 京东方科技集团股份有限公司 | Touch substrate, manufacturing method thereof and display panel |
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| CN106293244A (en) * | 2016-08-30 | 2017-01-04 | 京东方科技集团股份有限公司 | Touch-control display panel and driving method thereof and touch control display apparatus |
| CN106445244A (en) * | 2016-10-26 | 2017-02-22 | 厦门天马微电子有限公司 | Touch display device, display panel and driving method thereof |
| CN106502444A (en) * | 2015-09-03 | 2017-03-15 | 敦泰电子股份有限公司 | Touch display device, driving method thereof and pressure detection method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI426427B (en) * | 2010-02-12 | 2014-02-11 | Wintek Corp | Touch panel |
| CN205334402U (en) * | 2015-07-10 | 2016-06-22 | 宸鸿科技(厦门)有限公司 | Pressure sensing input device |
| CN106293226B (en) * | 2016-08-09 | 2024-05-14 | 厦门天马微电子有限公司 | Display panel, display device and driving method |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106502444A (en) * | 2015-09-03 | 2017-03-15 | 敦泰电子股份有限公司 | Touch display device, driving method thereof and pressure detection method |
| CN205068355U (en) * | 2015-10-30 | 2016-03-02 | 京东方科技集团股份有限公司 | Touch substrate and display device |
| CN106293244A (en) * | 2016-08-30 | 2017-01-04 | 京东方科技集团股份有限公司 | Touch-control display panel and driving method thereof and touch control display apparatus |
| CN106445244A (en) * | 2016-10-26 | 2017-02-22 | 厦门天马微电子有限公司 | Touch display device, display panel and driving method thereof |
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