CN205038623U - Touch screen and display device - Google Patents
Touch screen and display device Download PDFInfo
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- CN205038623U CN205038623U CN201520827910.7U CN201520827910U CN205038623U CN 205038623 U CN205038623 U CN 205038623U CN 201520827910 U CN201520827910 U CN 201520827910U CN 205038623 U CN205038623 U CN 205038623U
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Abstract
The utility model provides a touch screen and display device. This touch -sensitive screen is including setting up the fixed electrode of keeping away from various membrane base plate one side at array substrate, and array substrate includes the substrate, sets up many line of inductions on the substrate and be a plurality of NULL that the matrix was arranged, and line of induction and fixed electrode all are located NULL's positive direction of projection, and the extending direction of line of induction is on a parallel with NULL's the direction that is listed as, response electrode when the NULL of odd number row or the even number row driving electrode during as the pressure touch -control, even number row or odd number are listed as line of induction that NULL corresponds as the pressure touch -control, the fixed electrode is used for assisting when the pressure touch -control driving electrode and inductive line pair touch -control pressure to survey. Complete embedded forced induction touch -control has been realized to this touch -sensitive screen, has not only reduced the preparation degree of difficulty of forced induction touch -sensitive screen, has improved the touch -control accuracy of forced induction touch -sensitive screen, has reduced the production and the assembly costs of forced induction touch -sensitive screen moreover.
Description
Technical field
The utility model relates to display technique field, particularly, relates to a kind of touch-screen and display device.
Background technology
The fields such as pressure sensitive technology refers to the technology can implementing detection to external force, and this technology is just used in industry control for a long time, medical treatment.At present, many manufacturers are seeking suitable scheme and are realizing pressure sensitive touch-control in display field especially mobile phone or field of flat panel displays, and the display with pressure touch function can make client obtain better man-machine interaction experience.
But at present, the display with pressure sensitive touch controllable function is additionally increase pressure touch mechanism to realize the pressure touch function of display in the backlight portion of display (as liquid crystal display) or the midframe part of mobile phone mostly, this design, need to make change to the structural design of display itself, and over the display assembling pressure touch-control mechanism time, because build-up tolerance is comparatively large, so the pressure detection accuracy of pressure touch mechanism receives larger restriction in this design; In addition, it is also relatively high that this design makes display realize the cost of pressure sensitive touch-control, is unfavorable for pressure sensitive touch-control extensively promoting fast in display field.
Utility model content
The utility model, for the above-mentioned technical matters existed in prior art, provides a kind of touch-screen and display device.This touch-screen achieves completely embedded pressure sensitive touch-control, not only reduce the manufacture difficulty of pressure sensitive touch-screen, improve the touch-control degree of accuracy of pressure sensitive touch-screen, and reduce production and the assembly cost of pressure sensitive touch-screen, thus pressure sensitive touch-screen can also be promoted more fast widely.
The utility model provides a kind of touch-screen, comprise the liquid crystal cell that involuted by array base palte and color membrane substrates and be arranged on the fixed electorde of described array base palte away from described color membrane substrates side, multiple public electrodes that described array base palte comprises substrate, arranges many lines of induction over the substrate and arrange in matrix, the described line of induction and described fixed electorde are all positioned on the orthogonal projection direction of described public electrode, and the bearing of trend of the described line of induction is parallel to the column direction of described public electrode; The described public electrode of odd column or even column is as the first drive electrode during pressure touch, the described line of induction described in even column or odd column corresponding to public electrode is used as induction electrode during pressure touch, and described fixed electorde is used for assisting described first drive electrode and described inductive line pair touch-control pressure to detect when pressure touch.
Preferably, described public electrode is positioned at the top of the described line of induction, and is provided with insulation course between described public electrode and the described line of induction;
Described array base palte also comprises a plurality of data lines, and the described line of induction and described data line adopt same material and arrange with layer, and the described line of induction is parallel with described data line;
The described line of induction and described data line are arranged side by side correspondingly; Or, described data line comprises many first data lines, described first data line is the arragement direction along described data line, and distinguish the described data line of two the described data lines in interval between any two, the described line of induction and described first data line are arranged side by side correspondingly.
Preferably, described color membrane substrates comprises black matrix, and described black matrix blocks the described line of induction and described data line completely.
Preferably, also comprise backlight, described backlight is arranged on the side away from described color membrane substrates of described array base palte, and described fixed electorde is positioned at the side away from described array base palte of described backlight; Described fixed electorde is corresponding with described public electrode, and described fixed electorde ground connection or connect fixed voltage.
Preferably, multiple described first drive electrode being positioned at same a line connects same drive signal line; Or multiple described first drive electrode being positioned at same a line connects a drive signal line respectively;
The described line of induction described in even column or odd column corresponding to public electrode is connected to together.
Preferably, multiple described public electrode is also as the second drive electrode during self-capacitance touch-control.
Preferably, multiple described second drive electrode connects a drive signal line respectively.
The utility model also provides a kind of display device, comprises above-mentioned touch-screen.
The beneficial effects of the utility model: touch-screen provided by the utility model, by public electrode is used as the first drive electrode when pressure touch, and are used as induction electrode by the line of induction corresponding to the public electrode be staggeredly located out with the first drive electrode; The fixed electorde simultaneously utilizing touch-screen inside to carry is auxiliary carries out pressure detection, achieve completely embedded pressure sensitive touch-control, not only reduce the manufacture difficulty of pressure sensitive touch-screen, improve the touch-control degree of accuracy of pressure sensitive touch-screen, and reduce production and the assembly cost of pressure sensitive touch-screen, thus pressure sensitive touch-screen can also be promoted more fast widely.
Display device provided by the utility model, by adopting above-mentioned touch-screen, enabling this display device realize complete embedded pressure touch, also reducing production and the assembly cost of this display device simultaneously.
Accompanying drawing explanation
Fig. 1 is the structure cut-open view of touch-screen in the utility model embodiment 1;
Fig. 2 is the structure vertical view of the first drive electrode and the line of induction and wiring thereof in Fig. 1;
Fig. 3 is the another kind of structure vertical view of the first drive electrode and the line of induction and wiring thereof;
Fig. 4 is the driver' s timing figure of the public electrode in Fig. 1 in touch-screen;
Fig. 5 is the structure cut-open view of touch-screen in the utility model embodiment 2;
Fig. 6 is the driver' s timing figure of the public electrode in the utility model embodiment 3 in touch-screen.
Description of reference numerals wherein:
1. array base palte; 11. substrates; 12. lines of induction; 13. public electrodes; 131. first drive electrodes; 14. insulation courses; 15. data lines; 151. first data lines; 16. grid layers; 17. gate insulation layers; 2. color membrane substrates; 21. black matrixes; 22. substrates; 23. color retes; 3. liquid crystal cell; 4. fixed electorde; 5. drive signal line; Vcom. public voltage signal; Vforce. pressure touch drive singal; Vz. self-capacitance touch-control drive singal.
Embodiment
For making those skilled in the art understand the technical solution of the utility model better, below in conjunction with the drawings and specific embodiments, a kind of touch-screen provided by the utility model and display device are described in further detail.
Embodiment 1:
The present embodiment provides a kind of touch-screen, as shown in Figure 1, comprise the liquid crystal cell 3 that involuted by array base palte 1 and color membrane substrates 2 and be arranged on the fixed electorde 4 of array base palte 1 away from color membrane substrates 2 side, multiple public electrodes 13 that array base palte 1 comprises substrate 11, arranges many lines of induction 12 on the substrate 11 and arrange in matrix, the line of induction 12 and fixed electorde 4 are all positioned on the orthogonal projection direction of public electrode 13, and the bearing of trend of the line of induction 12 is parallel to the column direction of public electrode 13; The public electrode 13 of odd column is as the first drive electrode during pressure touch, the line of induction corresponding to even column public electrode 13 12 is used as induction electrode during pressure touch, and fixed electorde 4 detects for auxiliary first drive electrode when pressure touch and the line of induction 12 pairs of touch-control pressure.
In the present embodiment, be usually provided with center in touch-screen, center is used for the inside of touch-screen and the external world to carry out isolation and shield, and wherein, fixed electorde 4 adopts the center of touch-screen.When pressure touch, mutual capacitance can be produced between first drive electrode and induction electrode, this mutual capacitance can change along with the distance between touch-screen during pressure touch and center and change, namely during pressure touch, distance change between touch-screen and center greatly, pressure is larger, and the change of mutual capacitance will be thereupon larger, thus realize the pressure touch of this touch-screen.
The line of induction 12 corresponding to the public electrode 13 be staggeredly located out with the first drive electrode by public electrode 13 is used as the first drive electrode when pressure touch, and is used as induction electrode by this touch-screen; The fixed electorde 4 simultaneously utilizing touch-screen inside to carry is auxiliary carries out pressure detection, achieve the pressure sensitive touch-control of completely embedded mutual capacitance principle, not only reduce the manufacture difficulty of pressure sensitive touch-screen, improve the touch-control degree of accuracy of pressure sensitive touch-screen, and reduce production and the assembly cost of pressure sensitive touch-screen, thus pressure sensitive touch-screen can also be promoted more fast widely.
It should be noted that, also can be the public electrode 13 of even column the first drive electrode when being used as pressure touch, the line of induction 12 corresponding to odd column public electrode 13 be used as induction electrode during pressure touch.
In the present embodiment, public electrode 13 is positioned at the top of the line of induction 12, and is provided with insulation course 14 between public electrode 13 and the line of induction 12; Array base palte 1 also comprises a plurality of data lines 15, and the line of induction 12 and data line 15 adopt same material and arrange with layer, and the line of induction 12 is parallel with data line 15; The line of induction 12 and data line 15 are arranged side by side correspondingly.Setting like this, can not only make to form Inductance and Capacitance between the public electrode 13 of odd column and the line of induction 12 corresponding to public electrode 13 of even column, thus fixed electorde 4 auxiliary under realize the pressure touch of this touch-screen, and the line of induction 12 and data line 15 can be made to adopt a patterning processes to be formed simultaneously, thus simplify the step of preparation process of this touch-screen, and then reduce preparation cost and the process costs of this touch-screen.
In addition, the line of induction 12 and data line 15 are arranged side by side correspondingly, and namely every bar data line 15 side has all been arranged side by side a line of induction 12, so arranges, and while realizing this touch-screen pressure touch, can also improve the homogeneity of this touch-screen display.
In the present embodiment, color membrane substrates 2 comprises black matrix 21, and black matrix 21 blocks the line of induction 12 and data line 15 completely.Setting like this, can make the setting of the line of induction 12 can not affect the normal display of this touch-screen.
In addition, in the present embodiment, the substrate 11 of array base palte 1 is also provided with grid layer 16, and grid layer 16 comprises grid and grid line, and grid layer 16 is positioned at the below of data line 15, and is also folded with gate insulation layer 17 between grid layer 16 and data line 15.Color membrane substrates 2 also comprises substrate 22 and color rete 23, and color rete 23 comprises red, green, blue three color rete, and color rete 23 and black matrix 21 are all arranged on the side in the face of array base palte 1 of substrate 22, and color rete 23 is positioned at the interval region of black matrix 21.
In the present embodiment, this touch-screen also comprises backlight (not shown in figure 1), and backlight is arranged on the side away from color membrane substrates 2 of array base palte 1, and fixed electorde 4 is positioned at the side away from array base palte 1 of backlight; Fixed electorde 4 is corresponding with public electrode 13, and fixed electorde 4 ground connection.Certainly, fixed electorde 4 also can connect fixed voltage.Fixed electorde 4 is arranged on the side away from array base palte 1 of backlight, make it both can not impact the normal display of touch-screen, the inside and outside formation isolation and shield of fixed electorde 4 pairs of touch-screens can be guaranteed again simultaneously, make touch-screen inside can not produce electric discharge to outside, also can guarantee that exterior object can not impact the inside of touch-screen or damage.
In the present embodiment, as shown in Figure 2, multiple first drive electrodes 131 being positioned at same a line connect a drive signal line 5 respectively.Setting like this, when carrying out pressure sensitive touch-control to this touch-screen, applies pressure touch drive singal to multiple first drive electrodes 131 being positioned at same a line simultaneously, thus realizes lining by line scan driving when pressure touch.The line of induction 12 corresponding to even column public electrode 13 is connected to together.So just can make to form mutual capacitance between the public electrode 13 of the odd column line of induction 12 corresponding with even column public electrode 13, thus under the booster action of fixed electorde 4, realize the pressure sensitive touch-control of mutual capacitance principle.
It should be noted that, as shown in Figure 3, multiple first drive electrodes 131 being positioned at same a line also can connect same drive signal line 5.Wiring like this, when being convenient to carry out pressure sensitive touch-control to this touch-screen, to line by line scan driving to the first drive electrode 131, thus realizes lining by line scan driving when pressure touch.
It should be noted that in addition, in the present embodiment, the line of induction 12 of odd column public electrode 13 correspondence does not play any effect when pressure touch, so the line of induction 12 of odd column public electrode 13 correspondence does not connect any signal wire, i.e. and unsettled setting.
In the present embodiment, multiple public electrode 13 is also used as the second drive electrode during self-capacitance touch-control.Namely, when touch-screen carries out self-capacitance touch-control, all public electrodes 13 are all used as the second drive electrode.Multiple second drive electrode connects a drive signal line respectively, wiring like this, can realize the self-capacitance touch-control of this touch-screen.
It should be noted that, public electrode 13, when showing or when being used as the first drive electrode or the second drive electrode, can realizing as long as change the signal being supplied to corresponding public electrode 13, as when showing, providing public voltage signal to public electrode 13; When pressure touch, provide pressure touch drive singal to odd column public electrode 13; When self-capacitance touch-control, provide self-capacitance touch-control drive singal to all public electrodes 13.
It should be noted that in addition, when multiple first drive electrodes 131 being positioned at same a line connect same drive signal line 5, public electrode 13 is unrenewable second drive electrodes when making self-capacitance touch-control, because, public electrode 13 be used as self-capacitance touch-control time the second drive electrode time, each public electrode 13 must connect a drive signal line 5 respectively.
Based on the said structure of this touch-screen, the present embodiment also provides a kind of driving method of this touch-screen, comprising: display stage and pressure touch stage, display stage and the timesharing of pressure touch stage are carried out.As shown in Figure 4, in the display stage, multiple public electrode all inputs public voltage signal Vcom.In the pressure touch stage, the public electrode of odd column is used as the first drive electrode, first drive electrode input pressure touch-control drive singal Vforce, the change of the inductive line pair pressure touch drive singal corresponding to even column public electrode is responded to, and auxiliary first drive electrode of fixed electorde and inductive line pair touch-control pressure detect; Meanwhile, even column public electrode input public voltage signal.
Wherein, in the pressure touch stage, the first drive electrode is driven line by line.This can enable the pressure touch of employing mutual capacitance touch-control principle carry out better.
In the present embodiment, the pressure touch stage to be inserted in a frame picture after the display of any one-row pixels terminates.
It should be noted that, the pressure touch stage also can be inserted into previous frame picture display terminate after and next frame picture display start before.
In the present embodiment, driving method also comprises the self-capacitance touch-control stage, and display stage, pressure touch stage and the stage timesharing of self-capacitance touch-control are carried out; In the self-capacitance touch-control stage, multiple public electrode is all as the second drive electrode, and the second drive electrode inputs self-capacitance touch-control drive singal Vz.
In the present embodiment, in the self-capacitance touch-control stage, the second drive electrode is driven simultaneously.Wherein, the self-capacitance touch-control stage to be inserted in a frame picture after the display of any one-row pixels terminates.Certainly, the self-capacitance touch-control stage also can be inserted into previous frame picture display terminate after and next frame picture display start before.
Embodiment 2:
The present embodiment provides a kind of touch-screen, as different from Example 1, as shown in Figure 5, data line 15 comprises many first data lines 151, first data line 151 is the arragement direction along data line 15, distinguish the data line 15 of two data lines 15 in interval between any two, the line of induction 12 and the first data line 151 are arranged side by side correspondingly.
Compared to embodiment 1, in the present embodiment, the magnitude setting of the line of induction 12 reduces, thus aperture opening ratio when can improve the display of this touch-screen.
In the present embodiment other structures of touch-screen and driving method in the same manner as in Example 1, repeat no more herein.
Embodiment 3:
The present embodiment provides a kind of touch-screen, with embodiment 1-2 unlike, the public electrode in the present embodiment is not used as the second drive electrode during self-capacitance touch-control.Namely the touch-screen in the present embodiment only has pressure touch function, does not have self-capacitance touch controllable function.
Correspondingly, as shown in Figure 6, in the present embodiment, the driving method of touch-screen also only has display stage and pressure touch stage, and does not have the self-capacitance touch-control stage.
In the present embodiment other structures of touch-screen and driving method identical with embodiment 1 or 2, repeat no more herein.
The touch-screen that the beneficial effect of embodiment 1-3: embodiment 1-3 provides, by public electrode is used as the first drive electrode when pressure touch, and is used as induction electrode by the line of induction corresponding to the public electrode be staggeredly located out with the first drive electrode; The fixed electorde simultaneously utilizing touch-screen inside to carry is auxiliary carries out pressure detection, achieve completely embedded pressure sensitive touch-control, not only reduce the manufacture difficulty of pressure sensitive touch-screen, improve the touch-control degree of accuracy of pressure sensitive touch-screen, and reduce production and the assembly cost of pressure sensitive touch-screen, thus pressure sensitive touch-screen can also be promoted more fast widely.
Embodiment 4:
The present embodiment provides a kind of display device, comprises the touch-screen of embodiment 1-3 in any one.
By adopting the touch-screen of embodiment 1-3 in any one, enabling this display device realize the pressure sensitive touch-control of mutual capacitance principle, also reducing production and the assembly cost of this display device simultaneously.
This display device can be: any product or parts with Presentation Function such as mobile phone, panel computer, televisor, display, notebook computer, digital album (digital photo frame), navigating instrument.
Be understandable that, the illustrative embodiments that above embodiment is only used to principle of the present utility model is described and adopts, but the utility model is not limited thereto.For those skilled in the art, when not departing from spirit of the present utility model and essence, can make various modification and improvement, these modification and improvement are also considered as protection domain of the present utility model.
Claims (8)
1. a touch-screen, comprise the liquid crystal cell that involuted by array base palte and color membrane substrates and be arranged on the fixed electorde of described array base palte away from described color membrane substrates side, it is characterized in that, multiple public electrodes that described array base palte comprises substrate, arranges many lines of induction over the substrate and arrange in matrix, the described line of induction and described fixed electorde are all positioned on the orthogonal projection direction of described public electrode, and the bearing of trend of the described line of induction is parallel to the column direction of described public electrode; The described public electrode of odd column or even column is as the first drive electrode during pressure touch, the described line of induction described in even column or odd column corresponding to public electrode is used as induction electrode during pressure touch, and described fixed electorde is used for assisting described first drive electrode and described inductive line pair touch-control pressure to detect when pressure touch.
2. touch-screen according to claim 1, is characterized in that, described public electrode is positioned at the top of the described line of induction, and is provided with insulation course between described public electrode and the described line of induction;
Described array base palte also comprises a plurality of data lines, and the described line of induction and described data line adopt same material and arrange with layer, and the described line of induction is parallel with described data line;
The described line of induction and described data line are arranged side by side correspondingly; Or, described data line comprises many first data lines, described first data line is the arragement direction along described data line, and distinguish the described data line of two the described data lines in interval between any two, the described line of induction and described first data line are arranged side by side correspondingly.
3. touch-screen according to claim 2, is characterized in that, described color membrane substrates comprises black matrix, and described black matrix blocks the described line of induction and described data line completely.
4. touch-screen according to claim 1, is characterized in that, also comprises backlight, and described backlight is arranged on the side away from described color membrane substrates of described array base palte, and described fixed electorde is positioned at the side away from described array base palte of described backlight; Described fixed electorde is corresponding with described public electrode, and described fixed electorde ground connection or connect fixed voltage.
5. touch-screen according to claim 1, is characterized in that, multiple described first drive electrode being positioned at same a line connects same drive signal line; Or multiple described first drive electrode being positioned at same a line connects a drive signal line respectively;
The described line of induction described in even column or odd column corresponding to public electrode is connected to together.
6. touch-screen according to claim 1, is characterized in that, multiple described public electrode is also used as the second drive electrode during self-capacitance touch-control.
7. touch-screen according to claim 6, is characterized in that, multiple described second drive electrode connects a drive signal line respectively.
8. a display device, is characterized in that, comprises the touch-screen described in claim 1-7 any one.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520827910.7U CN205038623U (en) | 2015-10-22 | 2015-10-22 | Touch screen and display device |
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| CN201520827910.7U CN205038623U (en) | 2015-10-22 | 2015-10-22 | Touch screen and display device |
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| CN205038623U true CN205038623U (en) | 2016-02-17 |
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| CN105630251A (en) * | 2016-03-17 | 2016-06-01 | 厦门天马微电子有限公司 | Array substrate, display panel and display device |
| CN105677130A (en) * | 2016-04-08 | 2016-06-15 | 京东方科技集团股份有限公司 | Pressure sensing touch control method, pressure sensing touch control device and pressure sensing type touch screen |
| CN106598345A (en) * | 2016-12-30 | 2017-04-26 | 南京华东电子信息科技股份有限公司 | Embedded touch screen and liquid crystal display apparatus |
| WO2017067318A1 (en) * | 2015-10-22 | 2017-04-27 | 京东方科技集团股份有限公司 | Touch screen and driving method therefor, and display device |
| WO2017071543A1 (en) * | 2015-10-26 | 2017-05-04 | 京东方科技集团股份有限公司 | Embedded touch screen, driving method thereof and display device |
| CN107179147A (en) * | 2016-03-09 | 2017-09-19 | 敦泰电子有限公司 | A kind of electronic equipment and driving method with pressure detecting function |
| TWI608390B (en) * | 2016-02-19 | 2017-12-11 | 樂金顯示科技股份有限公司 | Driving circuit, touch display device, and method of driving the touch display device |
| CN107844216A (en) * | 2017-10-25 | 2018-03-27 | 昆山龙腾光电有限公司 | A kind of touch display unit and its manufacture method |
| US10139975B2 (en) | 2016-09-23 | 2018-11-27 | Apple Inc. | Pressure compensation for force-sensitive touch screen |
| US10209818B2 (en) | 2016-08-11 | 2019-02-19 | Xiamen Tianma Micro-Electronics Co., Ltd. | Display panel and drive method thereof as well as display apparatus |
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| CN106708301B (en) * | 2015-10-22 | 2023-12-15 | 京东方科技集团股份有限公司 | Touch screen, driving method thereof and display device |
| WO2017067318A1 (en) * | 2015-10-22 | 2017-04-27 | 京东方科技集团股份有限公司 | Touch screen and driving method therefor, and display device |
| CN106708301A (en) * | 2015-10-22 | 2017-05-24 | 京东方科技集团股份有限公司 | Touch screen and driving method and displaying device thereof |
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| US10082907B2 (en) | 2016-02-19 | 2018-09-25 | Lg Display Co., Ltd. | Driving circuit, touch display device, and method of driving the touch display device |
| CN107179147A (en) * | 2016-03-09 | 2017-09-19 | 敦泰电子有限公司 | A kind of electronic equipment and driving method with pressure detecting function |
| CN105630251A (en) * | 2016-03-17 | 2016-06-01 | 厦门天马微电子有限公司 | Array substrate, display panel and display device |
| US10019104B2 (en) | 2016-03-17 | 2018-07-10 | Xiamen Tianma Micro-Electronics Co., Ltd. | Array substrate, display pannel, and display device with pressure sensing electrode block embedded therein |
| CN105630251B (en) * | 2016-03-17 | 2018-07-24 | 厦门天马微电子有限公司 | A kind of array substrate, display panel and display device |
| CN105677130B (en) * | 2016-04-08 | 2018-10-02 | 京东方科技集团股份有限公司 | Pressure sensitivity touch control method, pressure sensitivity touch device and pressure-sensitive touch screen |
| CN105677130A (en) * | 2016-04-08 | 2016-06-15 | 京东方科技集团股份有限公司 | Pressure sensing touch control method, pressure sensing touch control device and pressure sensing type touch screen |
| US10209818B2 (en) | 2016-08-11 | 2019-02-19 | Xiamen Tianma Micro-Electronics Co., Ltd. | Display panel and drive method thereof as well as display apparatus |
| US10139975B2 (en) | 2016-09-23 | 2018-11-27 | Apple Inc. | Pressure compensation for force-sensitive touch screen |
| CN106598345A (en) * | 2016-12-30 | 2017-04-26 | 南京华东电子信息科技股份有限公司 | Embedded touch screen and liquid crystal display apparatus |
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