CN205375442U - Touch display device - Google Patents
Touch display device Download PDFInfo
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- CN205375442U CN205375442U CN201521030557.6U CN201521030557U CN205375442U CN 205375442 U CN205375442 U CN 205375442U CN 201521030557 U CN201521030557 U CN 201521030557U CN 205375442 U CN205375442 U CN 205375442U
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Abstract
The utility model discloses a touch display device, including array substrate, the relative various membrane base plate that sets up with array substrate, the liquid crystal layer, set up with array substrate with between the various membrane base plate, NULL, including a plurality of strip NULL, a plurality of strip NULL arrange along the first direction to extend to the second direction, the multiplexing driving electrode that is of NULL, detection electrode, including a plurality of strip detection electrode, a plurality of strip electrodes are arranged along the second direction to extend to the first direction, the control part is used for control NULL with detection electrode, NULL pass through NULL lead wire with the control part is connected, detection electrode pass through detection electrode lead wire with the control part is connected, wherein, arbitrary two the detection electrode lead wire equals at the conducting resistance of signal transmission direction.
Description
Technical field
This utility model relates to display field, particularly relates to a kind of touch display unit.
Background technology
In order to meet market demand, display device is introduced into touch detection function, in prior art, is mostly electrostatic capacitive with the display touching detection function, namely utilizes the electric current sensing of human body to draw the position of touch point.Mutual capacitance type touch display unit is as the one in capacitive touch display device, it determines touch point by the change of the coupling electric capacity between drive electrode and detecting electrode, generally, public electrode is multiplexed with drive electrode, and detecting electrode needs to additionally introduce.Fig. 1 is the color membrane substrates side structure schematic diagram in prior art with detecting electrode, as shown in Figure 1, the detecting electrode TDL of strip is arranged on color membrane substrates 13, and strip detecting electrode TDL is connected to control portion 11 after being connected to touch detection process portion 14 by detecting electrode lead-in wire 12.Detecting electrode lead-in wire 12 includes the line part that X extends along a first direction and the line part extended along second direction Y, owing to the distance in detecting electrode distance controlling portion is different, cause that the length that each bar detecting electrode goes between is different, such detecting electrode 12 conducting resistance that go between are different, cause that touch display unit is different with the response speed from the region away from control portion close to control portion.
Summary of the invention
In view of this, this utility model provides touch display unit.Have:
Array base palte；Color membrane substrates, is oppositely arranged with described array base palte；Liquid crystal layer, is arranged and between described array base palte and described color membrane substrates；Public electrode, is arranged between described array base palte and color membrane substrates, and described public electrode is multiplexed with drive electrode, and described public electrode includes multiple strip public electrode, and the plurality of strip public electrode arranges along a first direction, and extends to second direction；Detecting electrode, is arranged on the surface of described color membrane substrates, and described detecting electrode includes multiple strip detecting electrode, and the plurality of strip detecting electrode arranges along second direction, and extends to first direction；Control portion, is arranged at the side of described array base palte, is used for controlling described public electrode and described detecting electrode；Described public electrode is connected with described control portion by public electrode lead-in wire；Described detecting electrode is connected with described control portion by detecting electrode lead-in wire, and each described strip public electrode or described detecting electrode are connected to described control portion by a lead-in wire；Wherein, any two described detecting electrodes lead-in wire is equal in the conducting resistance of signal transmission direction.
Compared with prior art, the conducting resistance of the detecting electrode lead-in wire of the touch display unit that this utility model provides is of substantially equal, and when carrying out touching detection, signal transmission does not postpone, thus obtaining homogeneous touch-responsive speed.
Accompanying drawing explanation
Fig. 1 is the structural representation of the color membrane substrates of a kind of touch display unit in prior art；
Fig. 2 is the plan structure schematic diagram of a kind of touch display unit that this utility model embodiment provides；
Fig. 3 is the Fig. 2 sectional structure schematic diagram in A-A ' cross section；
Fig. 4 is the structure for amplifying schematic diagram of Fig. 2 region A1；
Fig. 5 is the structure for amplifying schematic diagram of Fig. 2 region B1；
Fig. 6 is the plan structure schematic diagram of the color membrane substrates of another touch display unit that this utility model embodiment provides；
Fig. 7 is the structure for amplifying schematic diagram of Fig. 6 region A2；
Detailed description of the invention
Understandable for enabling above-mentioned purpose of the present utility model, feature and advantage to become apparent from, below in conjunction with drawings and Examples, this utility model is described further.
It should be noted that elaborate detail in the following description so that fully understanding this utility model.But this utility model can be different from alternate manner described here implement with multiple, and those skilled in the art can do similar popularization when without prejudice to this utility model intension.Therefore this utility model is not by the restriction of following public detailed description of the invention.
Refer to Fig. 2, Fig. 3, Fig. 4 and Fig. 5, Fig. 2 is the plan structure schematic diagram of a kind of touch display unit that this utility model embodiment provides, Fig. 3 is the Fig. 2 sectional structure schematic diagram at A-A ', and Fig. 4 is the enlarged drawing of Fig. 2 region A1, and Fig. 5 is the enlarged drawing of Fig. 2 region B1.Specifically, please refer to Fig. 2 and Fig. 3, touch display unit includes array base palte 20；Color membrane substrates 25, is oppositely arranged with array base palte 20；Liquid crystal layer 27, is arranged between array base palte 20 and color membrane substrates 25；Public electrode COML, is arranged between array base palte 20 and color membrane substrates 25, and public electrode COML is multiplexed with drive electrode；Detecting electrode TDL, is arranged at the color membrane substrates 25 side away from array base palte 20.Further, public electrode COML includes multiple strip public electrode R1To Rn, multiple strip shaped electric poles COML X along a first direction arrange, and extend to second direction Y, and the conducting resistance of strip public electrode COML X in a first direction is equal.Specifically, the length of strip public electrode COML X in a first direction is equal；Detecting electrode TDL includes multiple strip detecting electrode T1To Tn, multiple strip shaped electric poles TDL arrange along second direction Y, and extend to first direction X, and strip public electrode TDL is equal in the length of second direction Y.Wherein, first direction X and second direction Y is mutually perpendicular to, and in other examples, first direction and second direction Y can also out of plumb.Control portion 22, is arranged at array base palte 20 side, it should be pointed out that in Fig. 2, array base palte 20 is overlapping with color membrane substrates 25.Control portion 22 is used for controlling public electrode COML and detecting electrode TDL；Public electrode COML is connected with control portion 22 by public electrode lead-in wire 26, and specifically, each strip public electrode COML is first connected to drive division 29 by a public electrode lead-in wire 26, is then electrically connected to control portion 22 again；Detecting electrode TDL is connected with control portion 22 by detecting electrode lead-in wire 24, and specifically, each strip detecting electrode TDL is connected with touching detection process portion 28 by a detecting electrode lead-in wire 24, is then electrically connected to control portion 22 again；Detecting electrode lead-in wire 24 includes the first line part of X extension along a first direction and extends second line part of Y along second direction, and detecting electrode lead-in wire 24 is distributed in and the opposite sides of control portion 22 not homonymy, specifically, the contact conductor 24 of both sides is alternately attached on bar shaped detecting electrode TDL.
Wherein, any two detecting electrodes lead-in wire 24 is equal along the conducting resistance of signal transmission direction, and wherein, each detecting electrode lead-in wire is the conducting resistance conducting resistance sum with the second line part of the first line part along the conducting resistance transmitting direction.The conducting resistance along signal transmission direction in order to realize detecting electrode lead-in wire is identical, the present embodiment in the following way, namely the second line part of same detecting electrode lead-in wire 24 from detecting electrode TDL distance more away from, live width is more wide.Specifically, refer to Fig. 4, Fig. 4 and schematically provide the second line part from two farthest for strip detecting electrode TDL electrical leads 241 and 242 and the second line part from two nearest for strip detecting electrode TDL electrical leads 243 and 244.As shown in Figure 4, detecting electrode lead-in wire 241 is W in the live width of primary importance1, the live width in the second position is S1；Detecting electrode lead-in wire 242 is W in the live width of primary importance2, the live width in the second position is S2；The go between live width of 243 primary importances of detecting electrode is W3, the live width in the second position is S3；Detecting electrode lead-in wire 244 is W in the live width of primary importance4, the live width in the second position is S4.Wherein, primary importance compared with the second position from control portion 22 farther out；W1>W2>W3>W4；S1>S2>S3>S4；W1=S1；W2=S2；W3=S3；W4=S4.In the present embodiment, different from the distance in control portion according to the detecting electrode that detecting electrode lead-in wire connects, the detecting electrode setting different in width realizes identical conducting resistance, namely detecting electrode from control portion more away from, then the detecting electrode lead-in wire in this detecting electrode connected and control portion is more wide at extension in a second direction.Detecting electrode lead-in wire includes the first line part and the second line part, but the length of the second line part proportion in whole piece detecting electrode goes between is very big, for distance controlling portion farther out detecting electrode lead-in wire for, second line part is bigger for the contribution of conducting resistance, therefore, the live width of the second line part is easily conditioned thus the conducting resistance of real different detecting electrode lead-in wire is identical.
Additionally, any two public electrodes lead-in wire 26 is equal at signal transmission direction resistance, specifically, the public electrode lead-in wire 26 of different length, its live width is different.Specifically, refer to Fig. 5, Fig. 5 and schematically show a part of public electrode lead-in wire 261,262,263 and the extension that 264 along a first direction.Public electrode lead-in wire 261 is M in the live width of primary importance1, the live width in the second position is L1；Public electrode lead-in wire 262 is M in the live width of primary importance2, the live width in the second position is L2；Public electrode lead-in wire 263 is M in the live width of primary importance3, the live width in the second position is L3；Public electrode lead-in wire 264 is M in the live width of primary importance4, the live width in the second position is L4.Wherein, primary importance compared with the second position from drive division 29 farther out；M1=L1；M2=L2；M3=L3；M4=L4, M1<M2<M3<M4, L1<L2<L3<L4。
So that the antistatic of touch display unit wounds reaches certain level, in the present embodiment, the distance between detecting electrode lead-in wire and the detecting electrode of inner side is more than or equal to 20 microns.Specifically, in the side of color membrane substrates, the second line part of detecting electrode lead-in wire 244 is nearest from detecting electrode TDL, then be considered as that the distance between itself and detecting electrode needs more than or equal to 20 microns from detecting electrode lead-in wire nearest for detecting electrode TDL；Similarly, other side from nearest for detecting electrode TDL detecting electrode lead-in wire 24 be also required to detecting electrode TDL at a distance of 20 microns and more than.
In the present embodiment, detecting electrode is arranged at the color membrane substrates side away from array base palte, but this utility model portion are limited to this, and in other examples, detecting electrode may be located at the color membrane substrates side near array base palte.Additionally, detecting electrode lead-in wire is distributed in the both sides that color membrane substrates is relative in the present embodiment, in other examples, detecting electrode lead-in wire can be distributed in the side of color membrane substrates.
Further, refer to Fig. 6 and Fig. 7, Fig. 6 is the another touch display unit structural representation in color membrane substrates side that this utility model embodiment provides, and Fig. 7 is the enlarged drawing of Fig. 6 region A2.Although Fig. 6 only gives the structural representation of color membrane substrates side, but the difference of the touch display unit that touch display unit provides with above-described embodiment is in that the detecting electrode lead-in wire of color membrane substrates side in the present embodiment, other architecture are identical, repeat no more herein.As shown in Figure 6, the detecting electrode TDL of strip is arranged at the side of color membrane substrates 35, and the detecting electrode TDL X along a first direction of strip extends, and arranges along second direction Y, the width of strip detecting electrode TDL second direction Y is identical, and first direction X is vertical with second direction.Strip detecting electrode TDL is by detecting electrode lead-in wire 34 and touches detection process portion 38 and is connected to control portion 32, and detecting electrode lead-in wire 34 includes the first line part extended of X along a first direction and along intersecting with first direction but the second line part of off plumb direction extension；Piece detecting electrode lead-in wire 34 one strip detecting electrode TDL of connection, detecting electrode lead-in wire 34 is distributed in the both sides that color membrane substrates 35 is relative, and detecting electrode lead-in wire 34 being connected on detecting electrode TDL alternately.Second line part of different detecting electrode lead-in wires 34 live width at the same position place of second direction Y is different, and from detecting electrode TDL more away from, live width is more wide；Meanwhile, same detection lead-in wire is different in the live width of the various location of second direction Y.Specifically, Fig. 7 schematically show the second line part from two farthest for strip detecting electrode TDL electrical leads 341 and 342, and from two nearest for strip detecting electrode TDL electrical leads 343 and 344 second line parts.As it is shown in fig. 7, detecting electrode lead-in wire 341 has the second line part extended along Z1 direction, wherein, Z1 direction is β 1 with the angle of first direction X；Detecting electrode lead-in wire 342 has the second line part extended along Z2 direction, and wherein, the angle of Z2 direction and first direction X is β 2；Detecting electrode lead-in wire 343 has the second line part extended along Z3 direction, and wherein, the angle of Z3 direction and first direction X is β 3；Detecting electrode lead-in wire 344 has the second line part extended along Z4 direction, and wherein, the angle of Z4 direction and first direction X is β 4；β 1 < β 2 < β 3 < β 4.Second line part of detecting electrode lead-in wire 341 is W in the live width of primary importance1, the live width in the second position is S1；Second line part of detecting electrode lead-in wire 342 is W in the live width of primary importance2, the live width in the second position is S2；Second line part of detecting electrode lead-in wire 342 is W in the live width of primary importance3, the live width in the second position is S3；Second line part of detecting electrode lead-in wire 342 is W in the live width of primary importance4, the live width in the second position is S4.Wherein, primary importance compared with the second position from control portion 32 farther out；W1>W2>W3>W4；S1>S2>S3>S4；W1>S1；W2>S2；W3>S3；W4>S4.In the present embodiment, different from the distance in control portion according to the detecting electrode that detecting electrode lead-in wire connects, and detecting electrode second line part that goes between is different from the distance of detecting electrode, set different in width detecting electrode realize identical conducting resistance, namely detecting electrode go between the second line part from detecting electrode more away from, live width is more wide, simultaneously, for same detecting electrode go between, the second line part from control portion more away from, then live width is more wide.Additionally, the bearing of trend difference of the second line part of every detecting electrode lead-in wire contributes to making full use of distance controlling portion non-display area farther out, namely can arrange wider in the live width of the second line part that detecting electrode is gone between by distance controlling portion non-display area farther out.
In the present embodiment, the angle between the second line part and first line part of detecting electrode lead-in wire is obtuse angle, Appropriate application non-display area, compared with the display device that angle is right angle between the second line part and first line part of detecting electrode lead-in wire, it is possible to realize narrow side frame.Additionally, the live width of detecting electrode lead-in wire is all different in the two directions, it is easy in resistance conductings such as limited color membrane substrates non-display area realizations.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, it is impossible to assert that of the present utility model being embodied as is confined to these explanations.For this utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, it is also possible to make some simple deduction or replace, protection domain of the present utility model all should be considered as belonging to.
Claims (10)
1. a touch display unit, has:
Array base palte；
Color membrane substrates, is oppositely arranged with described array base palte；
Liquid crystal layer, is arranged between described array base palte and described color membrane substrates；
Public electrode, is arranged between described array base palte and color membrane substrates, and described public electrode is multiplexed with drive electrode, and described public electrode includes multiple strip public electrode, and the plurality of strip public electrode arranges along a first direction, and extends to second direction；
Detecting electrode, is arranged on the surface of described color membrane substrates, and described detecting electrode includes multiple strip detecting electrode, and the plurality of strip detecting electrode arranges along second direction, and extends to first direction；
Control portion, is arranged at the side of described array base palte, is used for controlling described public electrode and described detecting electrode；
Described public electrode is connected with described control portion by public electrode lead-in wire；Described detecting electrode is connected with described control portion by detecting electrode lead-in wire, and each described strip public electrode or described detecting electrode are connected to described control portion by a lead-in wire；
Wherein, any two described detecting electrodes lead-in wire is equal in the conducting resistance of signal transmission direction.
2. touch display unit according to claim 1, it is characterised in that described detecting electrode lead-in wire includes the first line part extended along a first direction and the second line part extended along second direction.
3. touch display unit according to claim 1, it is characterised in that described detecting electrode lead-in wire includes the first line part of extending along a first direction and is not orthogonal to the second line part of the direction extension of first direction along intersecting with first direction.
4. the touch display unit according to Claims 2 or 3, it is characterised in that same described detecting electrode lead-in wire the second line part from described control portion distance more away from, live width is more wide.
5. the touch display unit according to Claims 2 or 3, it is characterised in that the second line part of the different detecting electrode lead-in wires live width at the same position place of described second direction is different, and from described detecting electrode more away from, live width is more wide.
6. touch display unit according to claim 1, it is characterised in that described detecting electrode lead-in wire is distributed in the both sides relative with described control portion not homonymy.
7. touch display unit according to claim 6, it is characterised in that described in both sides, detecting electrode lead-in wire alternately connects described detecting electrode.
8. touch display unit according to claim 1, it is characterised in that the distance between the described detecting electrode in inner side lead-in wire and described detecting electrode is more than or equal to 20 microns.
9. touch display unit according to claim 6, it is characterised in that described strip public electrode conducting resistance in a first direction is equal.
10. touch display unit according to claim 1, it is characterised in that any two described public electrodes lead-in wire is equal at signal transmission direction resistance.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521030557.6U CN205375442U (en) | 2015-12-11 | 2015-12-11 | Touch display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201521030557.6U CN205375442U (en) | 2015-12-11 | 2015-12-11 | Touch display device |
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| CN205375442U true CN205375442U (en) | 2016-07-06 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107843996A (en) * | 2017-10-23 | 2018-03-27 | 上海天马微电子有限公司 | Touch display panel and display device |
| CN107978293A (en) * | 2018-01-03 | 2018-05-01 | 惠科股份有限公司 | Curved surface display panel and manufacturing method thereof |
| CN109523963A (en) * | 2018-11-21 | 2019-03-26 | 惠科股份有限公司 | Display device's drive circuit and display device |
| CN110928440A (en) * | 2018-09-20 | 2020-03-27 | Smk株式会社 | Touch panel |
| CN113658974A (en) * | 2021-08-16 | 2021-11-16 | 京东方科技集团股份有限公司 | Light-emitting substrate, preparation method and test method thereof, and display device |
| CN116092438A (en) * | 2023-03-03 | 2023-05-09 | 苏州清越光电科技股份有限公司 | Electronic paper display module and VCOM uniformity control method of electronic paper display module |
-
2015
- 2015-12-11 CN CN201521030557.6U patent/CN205375442U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107843996A (en) * | 2017-10-23 | 2018-03-27 | 上海天马微电子有限公司 | Touch display panel and display device |
| CN107843996B (en) * | 2017-10-23 | 2020-09-25 | 上海天马微电子有限公司 | Touch display panel and display device |
| CN107978293A (en) * | 2018-01-03 | 2018-05-01 | 惠科股份有限公司 | Curved surface display panel and manufacturing method thereof |
| US11482145B2 (en) | 2018-01-03 | 2022-10-25 | HKC Corporation Limited | Curved display panel and method for manufacturing curved display panel |
| CN110928440A (en) * | 2018-09-20 | 2020-03-27 | Smk株式会社 | Touch panel |
| CN110928440B (en) * | 2018-09-20 | 2024-02-20 | Smk株式会社 | Touch panel |
| CN109523963A (en) * | 2018-11-21 | 2019-03-26 | 惠科股份有限公司 | Display device's drive circuit and display device |
| US11361724B2 (en) | 2018-11-21 | 2022-06-14 | HKC Corporation Limited | Drive circuit of display device, and display device |
| CN113658974A (en) * | 2021-08-16 | 2021-11-16 | 京东方科技集团股份有限公司 | Light-emitting substrate, preparation method and test method thereof, and display device |
| CN113658974B (en) * | 2021-08-16 | 2024-05-03 | 京东方科技集团股份有限公司 | Light-emitting substrate, preparation method thereof, testing method thereof and display device |
| CN116092438A (en) * | 2023-03-03 | 2023-05-09 | 苏州清越光电科技股份有限公司 | Electronic paper display module and VCOM uniformity control method of electronic paper display module |
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