CN104317469A - Touch screen and display device - Google Patents
Touch screen and display device Download PDFInfo
- Publication number
- CN104317469A CN104317469A CN201410649494.6A CN201410649494A CN104317469A CN 104317469 A CN104317469 A CN 104317469A CN 201410649494 A CN201410649494 A CN 201410649494A CN 104317469 A CN104317469 A CN 104317469A
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- Prior art keywords
- induction electrode
- touch
- teat
- area
- drift angle
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Classifications
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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
- G06F3/044—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
- G06F3/0412—Digitisers structurally integrated in a display
-
- 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
- G06F2203/04104—Multi-touch detection in digitiser, i.e. details about the simultaneous detection of a plurality of touching locations, e.g. multiple fingers or pen and finger
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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 screen and a display device. The touch screen enlarges the area of peripheral sensing electrodes or changes shapes of the peripheral sensing electrodes, and enhances touch control sensitivity by respectively increasing the signal change variation quantity or signal detection probability.
Description
Technical field
The present invention relates to display technique field, particularly, relate to a kind of touch-screen, display device.
Background technology
As shown in Figure 1, existing individual layer multi-point touch panel is capacitive touch screen, comprise substrate 1, and the induction electrode array of mutually insulated setting on substrate 1, described induction electrode array comprises the center induction electrode 21 being positioned at central area and the periphery induction electrode 22 being positioned at fringe region; There is between adjacent described induction electrode region, axial clearance 31 and/or lateral clearance region 32; Wherein longitudinally perpendicular to transverse direction.Capacitive touch screen also comprises the touch-control integrated circuit 5 be arranged on the downside of substrate 1, for receiving the electric signal that each induction electrode is transmitted by electrode wires 4, and above-said current signal is carried out to the circuit detection touching signals such as integration amplification, filtering, and then calculate the coordinate of position of touch; With above-mentioned touch-control integrated circuit 5 connecting communication interface 6, for the Signal transmissions after touch-control integrated circuit 5 is processed to external control system.Wherein, above-mentioned electrode wires 4 is arranged in the gap area of longitudinal direction.
As seen from Figure 1, center induction electrode 21 is identical with the area of periphery induction electrode 22.In individual layer multiple point touching platen edge touch area, because finger contact area is little compared with central area, that is little with induction electrode contact area, therefore touch-control sensitivity is lower.
There is the insensitive problem of edge touch-control in existing Touch Screen, have impact on touch experience greatly.Particularly when full keyboard input characters, often by " Q " and " P " this edge key, touch experience cannot be reduced greatly.
Summary of the invention
The object of the invention is to solve prior art and there is the insensitive problem of touch-screen edge touch-control, a kind of touch-screen of high touch-control sensitivity is provided.
The technical scheme that solution the technology of the present invention problem adopts is a kind of touch-screen, comprises substrate, is provided with on the substrate:
The induction electrode array that mutually insulated is arranged, described induction electrode array comprises the center induction electrode being positioned at central area and the periphery induction electrode being positioned at fringe region;
Between the induction electrode of adjacent described center, there is the gap area of first direction and/or the gap area of second direction; Described first direction is perpendicular to described second direction;
It is characterized in that, described periphery induction electrode is provided with teat on the basis of described center induction electrode shape.
Preferably, the constant gap between the relative outline portion of adjacent described periphery induction electrode.
Preferably, described periphery induction electrode comprises the drift angle induction electrode being positioned at described induction electrode array drift angle and the side induction electrode being positioned at induction electrode array side;
Described drift angle induction electrode has the first straight flange mutually connected vertically and the second straight flange that form induction electrode array profiles;
Described side induction electrode has the first straight flange of forming induction electrode array profiles and and second straight flange that be oppositely arranged parallel with this first straight flange.
Preferably, described drift angle induction electrode profile is convex quadrangle; Described side induction electrode is convex quadrangle.
Preferably, described drift angle induction electrode and side induction electrode have teat and depressed part respectively;
The teat of each side induction electrode is oppositely arranged with the depressed part of adjacent side induction electrode or drift angle induction electrode respectively;
The depressed part of each side induction electrode is oppositely arranged with the teat of adjacent side induction electrode or drift angle induction electrode respectively.
Preferably, described teat profile comprise in triangle, arc, semicircle, ellipse, serrate any one.
Preferably, described teat and described depressed part all have identical profile.
Preferably, the area of described periphery induction electrode is more than or equal to the area of described center induction electrode.
Another object of the present invention is to provide a kind of display device, comprises above-mentioned touch-screen.
Touch-screen of the present invention, display device, by increasing the area of periphery induction electrode or changing the shape of periphery induction electrode, detect probability to strengthen touch-control sensitivity respectively by raising change amount signal or increase signal.
Accompanying drawing explanation
Fig. 1 is the structural representation of touch-screen in 1 in prior art.
Fig. 2 is the structural representation of touch-screen in the embodiment of the present invention 1.
Fig. 3 is drift angle induction electrode schematic shapes in touch-screen in the embodiment of the present invention 1.
Fig. 4 is the schematic shapes of touch-screen side induction electrode in the embodiment of the present invention 1.
Fig. 5 is the structural representation of touch-screen in the embodiment of the present invention 2.
Fig. 6 is the schematic shapes of periphery induction electrode in touch-screen in the embodiment of the present invention 1.
Fig. 7 is other schematic shapes of periphery induction electrode in touch-screen in the embodiment of the present invention 1.
Description of reference numerals:
1. substrate;
2. induction electrode; 21. center induction electrodes; 22. periphery induction electrodes; 221. drift angle induction electrodes 221; 222. side induction electrodes;
3. gap area;
31. region, axial clearances; The extended area of 311. axial clearances district;
32. lateral clearance regions; The extended area in 321. lateral clearance districts;
4. electrode wires;
5. touch-control integrated circuit;
6. communication interface;
7. teat;
8. depressed part;
9. extraneous touch area.
Embodiment
For making those skilled in the art understand technical scheme of the present invention better, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
As illustrated in figs. 2-7, the invention provides a kind of touch-screen, comprise substrate 1, described substrate 1 is provided with:
The induction electrode array that mutually insulated is arranged, described induction electrode array comprises the center induction electrode 21 being positioned at central area and the periphery induction electrode 22 being positioned at fringe region;
Between adjacent described center induction electrode 21, there is the gap area of first direction and/or the gap area of second direction; Described first direction is perpendicular to described second direction;
Described periphery induction electrode 22 is provided with teat on the basis of described center induction electrode 21 shape.
Touch-screen of the present invention by being provided with teat by periphery induction electrode on the basis of described center induction electrode 21 shape, such area that can increase periphery induction electrode 22 or the shape (carrying out non-rectangle design relative to center induction electrode 21) changing periphery induction electrode 22, respectively by raising change amount signal or increase signal and detect probability to strengthen touch-control sensitivity.
Concrete embodiment is as follows:
Embodiment 1:
As in Figure 2-4, the present embodiment provides a kind of touch-screen, comprise substrate 1, described substrate 1 is provided with: the induction electrode array that mutually insulated is arranged, described induction electrode array comprises the center induction electrode 21 being positioned at central area and the periphery induction electrode 2222 being positioned at fringe region; Between adjacent described center induction electrode 21, there is region, axial clearance 31 and/or lateral clearance region 32; Described longitudinal direction is perpendicular to described transverse direction;
Described periphery induction electrode 22 is provided with teat (region in Fig. 3 and Fig. 4 shown by A) on the basis of described center induction electrode 21 shape.
Particularly, as shown in Figure 2, increase periphery induction electrode 22 area, namely the area of the center induction electrode 21 of the area ratio central area of periphery induction electrode 22 is large, when arranging that above-mentioned induction electrode forms induction electrode array so on substrate 1, periphery induction electrode 22 at least partly to the gap area of described longitudinal direction and/or the gap area of horizontal direction outstanding.
Plane capacitance formula is as follows:
C＝ε*S/d
Wherein, ε is specific inductive capacity, and S is plane capacitance overlapping area, and d is the spacing of plane.
From above-mentioned plane capacitance formula, the size of inductance capacitance and the area of induction electrode proportional.
When other situations are constant, increase induction electrode area, can inductance capacitance be increased, larger change amount signal can be read by integrating amplification circuit, thus improve touch-control sensitivity.
Preferably, the constant gap between the relative outline portion of adjacent described periphery induction electrode 22.That is, the relative outline portion of adjacent periphery induction electrode 22 can coincide.Such as, in Fig. 2, the relative profile of adjacent peripheral induction electrode 22 is two parallel linears.
As shown in Figure 2, preferably, described periphery induction electrode 22 comprises the drift angle induction electrode 221 being positioned at described induction electrode array drift angle and the side induction electrode 222 being positioned at induction electrode array side;
Described drift angle induction electrode 221 has the first straight flange mutually connected vertically and the second straight flange that form induction electrode array profiles;
Described side induction electrode 222 has the first straight flange of forming induction electrode array profiles and parallel with this first straight flange and be oppositely arranged the second straight flange.
As shown in Figure 3, preferably, described drift angle induction electrode 221 profile is convex quadrangle, and the angle between the connected non-straight arm of angle of this convex quadrangle first straight flange is θ; With the angle between the connected non-straight arm of angle of the second straight flange is also θ;
Summit C in this convex quadrangle not on right-angle side is a to the distance of the first straight flange and the second straight flange, that is Tu3Zhong center induction electrode 21 for the length of side be the square of a;
In Fig. 3, a-quadrant is be positioned at the increase area that the length of side is the square outside of a, and the area of this a-quadrant is a
2ctan θ.Therefore, the area that each drift angle induction electrode 222 increases is 2a
2ctan θ.
As shown in Figure 4, corresponding side induction electrode 222 is also convex quadrangle, this convex quadrangle is isosceles trapezoid, the base angle of this isosceles trapezoid is θ, height is a, the length also a on shorter base, then a-quadrant is be positioned at the area that the length of side is the increase in the square outside of a in Figure 5, and the area of this a-quadrant is a
2ctan θ.Therefore, the area that each side induction electrode 222 increases is 2a
2ctan θ.
Should be understood that, above-mentioned concrete increase area can adjust according to concrete applicable cases, above-mentioned just exemplary introduction.
The preparation method of above-mentioned induction electrode is that this is no longer going to repeat them for prior art category.
Embodiment 2:
As illustrated in figs. 5-7, the present embodiment provides a kind of touch-screen, with embodiment unlike, the area of periphery induction electrode 22 does not increase, and changes the shape of periphery induction electrode 22.
As shown in Figure 6, drift angle induction electrode 221 and side induction electrode 222 have teat 7 and depressed part 8 respectively;
The teat 7 of each side induction electrode 222 is oppositely arranged with the depressed part 8 of adjacent side induction electrode 222 or drift angle induction electrode 221 respectively;
The depressed part 8 of each side induction electrode 222 is oppositely arranged with the teat 7 of adjacent side induction electrode 222 or drift angle induction electrode 221 respectively.
Teat 7 profile comprise in triangle, arc, semicircle, ellipse, serrate any one.
Preferably, described teat 7 and described depressed part 8 all have identical profile.
As shown in Figure 7, first group be triangle, second group for semicircle, the 3rd group be serrate; Should be understood that, above-mentioned figure is exemplary description, and in fact teat 7 profile comprises and is not limited to above-mentioned shape, and angle wherein and radius also can be selected according to concrete application scenario accordingly.
Should be understood that, as long as the teat 7 of each side induction electrode 222 is oppositely arranged with the depressed part 8 of adjacent side induction electrode 222 or drift angle induction electrode 221 respectively;
The depressed part 8 of each side induction electrode 222 is oppositely arranged with the teat 7 of adjacent side induction electrode 222 or drift angle induction electrode 221 respectively.
The teat 7 be oppositely arranged of that is adjacent periphery induction electrode 22 and depressed part 8 all have identical profile.
The touch-screen of the present embodiment, do not increase the area of induction electrode, but by changing the shape of edge induction electrode, extraneous touch area 9 of the same area can edge region be received by two and above induction electrode as much as possible simultaneously, be conducive to anti-stop signal like this and be treated as undesired signal shielding, improve edge touch-control sensitivity.
The preparation method of above-mentioned induction electrode is that this is no longer going to repeat them for prior art category.
Should be understood that, touch screen provided by the present invention may be used for any product or parts with Presentation Function such as TV, mobile phone, navigating instrument.Of the present invention for capacitance type touch control screen introduction, if the touch screen of other type can improve touch-control sensitivity by increasing sensing element area or changing sensing element shape, be also applicable.
Embodiment 3
The present embodiment provides a kind of display device, and this display device comprises above-mentioned touch screen.
Be understandable that, the illustrative embodiments that above embodiment is only used to principle of the present invention is described and adopts, but the present invention is not limited thereto.For those skilled in the art, without departing from the spirit and substance in the present invention, can make various modification and improvement, these modification and improvement are also considered as protection scope of the present invention.
Claims (9)
1. a touch-screen, comprises substrate, is provided with on the substrate:
The induction electrode array that mutually insulated is arranged, described induction electrode array comprises the center induction electrode being positioned at central area and the periphery induction electrode being positioned at fringe region;
Between the induction electrode of adjacent described center, there is the gap area of first direction and/or the gap area of second direction; Described first direction is perpendicular to described second direction;
It is characterized in that, described periphery induction electrode is provided with teat on the basis of described center induction electrode shape.
2. touch-screen according to claim 1, is characterized in that, the constant gap between the relative outline portion of adjacent described periphery induction electrode.
3. touch-screen according to claim 1, is characterized in that,
Described periphery induction electrode comprises the drift angle induction electrode being positioned at described induction electrode array drift angle and the side induction electrode being positioned at induction electrode array side;
Described drift angle induction electrode has the first straight flange mutually connected vertically and the second straight flange that form induction electrode array profiles;
Described side induction electrode has the first straight flange of forming induction electrode array profiles and and second straight flange that be oppositely arranged parallel with this first straight flange.
4. touch-screen according to claim 3, is characterized in that, described drift angle induction electrode profile is convex quadrangle; Described side induction electrode is convex quadrangle.
5. touch-screen according to claim 3, is characterized in that, described drift angle induction electrode and side induction electrode have teat and depressed part respectively;
The teat of each side induction electrode is oppositely arranged with the depressed part of adjacent side induction electrode or drift angle induction electrode respectively;
The depressed part of each side induction electrode is oppositely arranged with the teat of adjacent side induction electrode or drift angle induction electrode respectively.
6. touch-screen according to claim 5, is characterized in that, described teat profile comprise in triangle, arc, semicircle, ellipse, serrate any one.
7. touch-screen according to claim 5, is characterized in that, described teat and described depressed part all have identical profile.
8. touch-screen according to claim 1, is characterized in that, the area of described periphery induction electrode is more than or equal to the area of described center induction electrode.
9. a display device, is characterized in that, comprises the touch-screen as described in any one of claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410649494.6A CN104317469A (en) | 2014-11-14 | 2014-11-14 | Touch screen and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410649494.6A CN104317469A (en) | 2014-11-14 | 2014-11-14 | Touch screen and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104317469A true CN104317469A (en) | 2015-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410649494.6A Pending CN104317469A (en) | 2014-11-14 | 2014-11-14 | Touch screen and display device |
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| CN (1) | CN104317469A (en) |
Cited By (7)
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|---|---|---|---|---|
| CN104699348A (en) * | 2015-04-01 | 2015-06-10 | 上海天马微电子有限公司 | Array substrate and display device |
| CN104714327A (en) * | 2015-03-30 | 2015-06-17 | 深圳市华星光电技术有限公司 | Touch liquid crystal display panel and touch liquid crystal display device |
| CN106708339A (en) * | 2015-10-26 | 2017-05-24 | 京东方科技集团股份有限公司 | Embedded touch screen, driving method thereof and display device |
| CN107390963A (en) * | 2017-08-17 | 2017-11-24 | 京东方科技集团股份有限公司 | Touch base plate and display device |
| CN108646952A (en) * | 2018-03-29 | 2018-10-12 | 上海天马微电子有限公司 | Touch-control display panel and touch control display apparatus |
| CN108984011A (en) * | 2017-06-01 | 2018-12-11 | 乐金显示有限公司 | Touch display unit and touch display panel |
| US10768758B2 (en) | 2018-06-12 | 2020-09-08 | Au Optronics Corporation | Touch display panel |
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| CN104714327A (en) * | 2015-03-30 | 2015-06-17 | 深圳市华星光电技术有限公司 | Touch liquid crystal display panel and touch liquid crystal display device |
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| CN108984011A (en) * | 2017-06-01 | 2018-12-11 | 乐金显示有限公司 | Touch display unit and touch display panel |
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| CN108646952A (en) * | 2018-03-29 | 2018-10-12 | 上海天马微电子有限公司 | Touch-control display panel and touch control display apparatus |
| US10768758B2 (en) | 2018-06-12 | 2020-09-08 | Au Optronics Corporation | Touch display panel |
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