CN104978055B - Touch control display device - Google Patents

Touch control display device Download PDF

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Publication number
CN104978055B
CN104978055B CN201410128530.4A CN201410128530A CN104978055B CN 104978055 B CN104978055 B CN 104978055B CN 201410128530 A CN201410128530 A CN 201410128530A CN 104978055 B CN104978055 B CN 104978055B
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sub
pixels
touch control
those
along
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CN104978055A (en
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彭家鹏
姚怡安
简传枝
陈明煌
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Innolux Corp
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Innolux Display Corp
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Abstract

A kind of touch control display device, including:One display module, including the first sub-pixel, the second sub-pixel and third sub-pixel that a plurality of colors are different;And a plurality of touch control units, it is set on the display module, each touch control unit includes:Two first electrode blocks are arranged along a first direction;The two second electrode blocks being electrically connected, arrange along a second direction;One bridging line, is electrically connected two first electrode blocks, which has an angle (θ more than zero relative to the first direction1);And an insulating layer, it is set between the bridging line and two second electrode blocks;Wherein, two be to be arranged with the axial symmetry of a parallel second direction, and two along the adjacent bridging line of the second direction be arranged with the axial symmetry of a parallel first direction along the adjacent bridging line of the first direction.

Description

Touch control display device
Technical field
The present invention relates to a kind of touch control display device, especially a kind of touch-control that can reduce metal pattern visuality is shown Equipment.
Background technology
In recent years, with user-friendly for operation, simplicity development trend, the touch control display device with touch panel is got over To be more widely used in life.Since user can be by way of directly contacting touch panel with hand or other objects Input signal uses to decrease or even eliminate dependence of the user to other input equipments (such as keyboard, mouse, remote controler) The convenience of family operation is substantially improved.
Touch panel technology generates principle difference according to signal, can be divided mainly into condenser type and resistance-type:Capacitance touching control system Using ITO (Indium Tin Oxide;Tin indium oxide) it is used as induction electrode, and on the transparent substrate according to vertical, trunnion axis side To arrangement, and capacitance is will produce between adjacent axially different induction electrode, when conductor (example:Finger or stylus) lean on near-induction When electrode the capacitance can change and generate touching signal;And electric resistance touch-control includes two layers of electrode, and between two layers of electrode Equipped with every ball (dot spacer) with by two layers of electrode insulation, two layers of electrode is connected and is generated by the pressure for touching generation by object The signal of potential difference, then signal is transmitted to by circuit by controller, to handle and calculate the coordinate position of touch points.
In general, the touch control unit of touch panel includes an induction electrode array, has and arranged along vertical, horizontal direction The plural induction electrode of row is serial, is for electrically connecting to the bridge joint metal of induction electrode and therebetween insulating layer.So And in display area, since extraneous light can be reflexed to human eye by opaque bridge joint metal.Therefore, user is easy observation Go out the bridge joint metal in touch device, and the problem for causing the visual effect of touch panel display bad.In addition, working as touch surface Plate becomes large-sized, and the resistance value that manufacturer can face induction electrode is excessively high, and the problem of be not easy to drive touch panel.
The visibility problem of metal pattern can be reduced, there is an urgent need for developing a kind of touch control display device to carry at present as a result, It rises user and watches the visual quality of touch control display device, and mitigate the excessively high problem of resistance value simultaneously.
Invention content
The purpose of the present invention is to provide a kind of touch control display devices, can effectively reduce the visibility problem of metal pattern, Visual quality is promoted, while mitigating the excessively high problem of resistance value.
To achieve the above object, touch control display device provided by the invention, including:One display module includes a plurality of The first different sub-pixel of color, the second sub-pixel and third sub-pixel;And a plurality of touch control units, it is set to the display In module, each touch control unit includes:Two first electrode blocks are arranged along a first direction;Two second electrodes being electrically connected Block is arranged along a second direction;One bridging line is electrically connected the two first electrodes block, wherein the bridging line relative to this first Direction has an angle (θ more than zero1), wherein 0 °<θ1<90°;One insulating layer is set to the bridging line and two second electricity Between the block of pole;Wherein, two be to be arranged with the axial symmetry of a parallel second direction along the adjacent bridging line of the first direction, and two The bridging line adjacent along the second direction is arranged with the axial symmetry of a parallel first direction.
Accordingly, in the touch control display device of the present invention, compared with known touch panel, because of phase in touch control unit of the present invention Adjacent bridging line has a different inclined directions, thus bridging line by it is reflective caused by ambient irradiation will not be toward same Human eye is injected in direction.Accordingly, user will not some special angle watch display panel when receive intensity it is stronger it is reflective, And weaker reflective of intensity is received when another special angle watches display panel, but can be connect in each viewing angle Receive the reflective of equivalent intensity.Thus, the reflective of bridging line will achieve the effect that blurring because of average dispersion, and Improve the problem of metal visuality.
Description of the drawings
Fig. 1 is the touch control unit schematic diagram of a preferred embodiment of the present invention.
Fig. 2 is sectional view of the touch control unit along the directions AA of Fig. 1.
Fig. 3 is the touch control display device schematic diagram of a preferred embodiment of the present invention.
Fig. 4 is the schematic diagram of the touch control unit of a preferred embodiment of the present invention.
Fig. 5 is the schematic diagram of the metal wire set-up mode of another preferred embodiment of the present invention.
Fig. 6 is the schematic diagram that the metal wire of Fig. 5 corresponds into display module pixel.
Fig. 7 is that four sub-pixels of the present invention are straight stripe array schematic diagram.
Fig. 8 is that three sub-pixels of the present invention are that Mosaic style arranges schematic diagram.
Fig. 9 is that three sub-pixels of the present invention are that triangular form arranges schematic diagram.
Figure 10 is the schematic diagram of the metal wire set-up mode of another preferred embodiment of the invention.
Symbol description in attached drawing:
100 touch panels;101 touch surfaces;200 display modules;300 touch control display devices;1 first electrode block;2 second electricity Pole block;3,31,32,33,34 bridging lines;4 insulating layers;51 first metal wires;52 second metal wires;521,522 turnovers;61,62, 63 pixels;611,621,631 central points;71,72,73,74 sub-pixels;81,82 axis;θ123456Angle.
Specific implementation mode
Illustrate that embodiments of the present invention, those skilled in the art can be disclosed in this specification by specific embodiment below Content understand easily the present invention other advantages and effect.In addition, the present invention can also be added by other different specific embodiments To implement or apply, in the lower various modifications of progress without departing from the spirit and change.
Embodiment 1
Fig. 1 is the touch control unit schematic diagram of a preferred embodiment of the present invention, and Fig. 2 is the touch control unit of Fig. 1 along the directions A-A Sectional view.The touch control unit includes:A pair of of first electrode block 1 is arranged along a first direction;A pair of of second electrode block 2, along one Two directions arrange and it is adjacent this to first electrode block 1, wherein the first direction is perpendicular to the second direction;One bridging line 3, electrically This is connected to first electrode block 1;And an insulating layer 4, be set to the bridging line 3 and this between second electrode block 2.Also, Fig. 4 is referred to, is the partial enlarged view of four adjacent touch control units, shows four adjacent bridging lines 31,32 respectively, 33,34, two are symmetrically set along adjacent 31,32 or 33,34 system of bridging line of the first direction with the axis 81 of a parallel second direction It sets, and two along the adjacent bridging line 31,33 or 32,34 of the second direction symmetrically set with the axis 82 of a parallel first direction It sets.The bridging line 31,32,33,34 is in an acute angle relative to the first direction shape, and the angle, θ of the acute angle1More than zero degree and small In 90 degree.Since adjacent bridging line has different inclined directions, therefore bridging line is by anti-caused by ambient irradiation Light will not inject human eye toward the same direction.Accordingly, user will not receive when some special angle watches display panel Intensity is stronger reflective and weaker reflective of intensity is received when another special angle watches display panel, but every A viewing angle all can receive the reflective of equivalent intensity.Thus, which the reflective of bridging line will reach because of average dispersion To the effect of blurring, and improve the problem of metal visuality.
In this, angle, θ1There is no particular restriction, can be 20 to 70 degree, preferably can be 20 to 45 degree.Also, adjacent bridge joint Line 31,32,33,34 is also not limited to the mode of axial alignment, such as also can be the arrangement mode of progressive angle, irregular row Row mode etc.;The usually intellectual of having can adjust the arrangement mode of plural bridging line according to practical application in the art.
Can by known technology (such as:Lithographic and etch process) conductive layer pattern formed into first electrode block 1 And second electrode block 2, the material of conductive layer can be the common electrode material of the art, such as indium tin oxide (ITO), indium zinc Oxide (Indium Zinc Oxide, IZO) or other transparent conductive film materials (transparent conductive Oxide, TCO) etc..In addition, bridging line 3 is preferably the metal layer of single or multi-layer structure, metal layer material is for example:Copper, aluminium, Molybdenum, its alloy, or combinations thereof, it is sub-optimal be transparency conducting layer, the material of transparency conducting layer is for example:Indium tin oxide (ITO), indium zinc Oxide (Indium Zinc Oxide, IZO) or other transparent conductive film materials (transparent conductive oxide,TCO).There is no particular restriction for the width of bridging line 3, preferably 6 to 10 microns;If it is micro- that the width of bridging line 3 is more than 10 Rice may make the reduction visuality effect of the present invention be deteriorated.
In addition, insulating layer 4 is used as this to first electrode block 1 and the electrically isolating between second electrode block 2, with It avoids that short circuit occurs.In this embodiment, the vertical view of insulating layer 4 is rectangular configuration, and length direction corresponds to bridging line 31, 32,33,34 length direction and be arranged, but the present invention is not limited by this, can be adjusted according to process conditions.Insulating layer 4 can be The material of single or multi-layer structure, insulating layer 4 can be silica, silicon nitride, other transparent insulating polymers or combinations thereof.
As shown in figure 3, the touch panel 100 comprising above-mentioned touch control unit is applied to display module 200, for ease of figure Show, be omitted in figure 3 physical presence 100 structure of touch panel (such as:Substrate, light shield layer, optical thin film, line layer and Protective layer etc.) and 200 structure of display module (such as:Colored filter substrate, Organic Light Emitting Diode layer, thin film transistor (TFT) Substrate etc.).Touch control display device 300 includes:Display module 200;And touch panel 100, it is set to the one of display module 200 On side;User watches touch control display device 300 from touch surface 101.
In short, touch panel 100 can be applied to any device that need to be used to touch panel, it is not particularly limited, shows Module 200 can be various flat-panel screens, may be, for example, liquid crystal display, organic light emitting diode display or Electronic Paper and show Device etc.;Practical application is for example:Vehicle display, isolating electromagnetic glass, mobile phone, solar cell, portable type liquid crystal electronic game, family Electric articles for use liquid crystal display panel, instrument display, organic light emitting diode display, liquid crystal display, laptop, liquid crystal electricity The combination etc. of formula, plasma display panel, color filter electrode or more.
Embodiment 2
Fig. 5 is the touch control unit schematic diagram of another embodiment, and it is multiple to being carried on first and second electrode block 1,2 to be shown in this Number metal wire.Refer to Fig. 5, in addition to first electrode block 1 identical with above-described embodiment 1, second electrode block 2, bridging line 3, with And insulating layer 4, one first metal wire 51 and one second metal wire 52 are further included, which is set to this to the first electricity On pole block 1, which is set on the second electrode block 2 to electric connection.First metal wire 51 and this The material of two metal wires 52 can be any conductive material, such as metal.According to electrode block pattern, first metal wire 51 and second metal wire 52 can be each independently selected from by:One straight line, a curve, a broken line, a jaggies and a wave The group formed;In this embodiment, when first metal wire 51 and second metal wire 52 are broken line, first metal wire 51 this on first electrode block 1 respectively have one turnover 511,512, and second metal wire 52 this on second electrode block 2 Respectively there is a turnover 521,522;Less turnover number, which can show, preferably reduces visual effect.This is to the first metal wire 51 And there is no particular restriction for the width to the second metal wire 52, preferably 2 to 4 microns;If this is to the first metal wire 51 and this is right The width of second metal wire 52 is more than 4 microns, and the reduction visuality effect of the present invention may be made to be deteriorated.
Fig. 6 is referred to, shows that the first metal wire 51 of Fig. 5, the second metal wire 52 are corresponded to the display module for being contained in Fig. 2 The schematic diagram of pixel in 200, each metal wire 51,52 on corresponding electrode block 1,2 at least across three sub-pixels 71, 72,73.Display module includes plural pixel 61,62,63, and each pixel 61,62,63 includes the first son arranged along third direction Pixel 71, the second sub-pixel 72 and third sub-pixel 73, the colors of those sub-pixels is different, can be each independently selected from by:It is red Color, green, blue, dark green, yellow and colourless formed group.Such as:Red, green and blue combination (RGB).
The arrangement mode of the plural number pixel is unrestricted, may be, for example, straight stripe array, Mosaic style arrangement or triangular form row Row.The pixel color combination of the present invention and arrangement mode can make appropriate selection by those skilled in the art according to actual demand.In this In embodiment, which is that the group of red pixel 71, green pixel 72 and blue pixel 73 merges into straight stripe array.
Accordingly, which is the fourth direction along a vertical third direction Extend, an acute angle theta is formed relative to the third direction3, the angle (θ of the acute angle3) it is to be defined with following equation:
θ3=[tan-1(BY/X)]±2°
Wherein, X is the distance of the central point 611,631 along two adjacent pixels 61,63 of the third direction, Y be along this The distance of the central point 611,621 of two adjacent pixels 61,62 of four directions, and 0.5≤B≤1.
In addition, " ± 2 ° " expressions calculate the error amount that may occur when the angle in equation, including various human errors, Error caused by environmental condition error, instrument error etc.;In general, acceptable error angle range in the technical field Within ± 2 °, such as:In the presence of -0.5 °, -1 ° ,+0.5 ° or+1 ° of error.
In addition, the bridging line 31,32,33,34 described in embodiment 1 forms an acute angle theta relative to the third direction2, Acute angle theta2It can be with θ3It defines identical.
Accordingly, when first metal wire 51 and second metal wire 52 and sub-pixel 71,72,73 length direction relative to When the third direction forms angle defined in aforesaid equation, because uniformly covering each sub-pixels 71,72 in plural pixel, 73, and the Problem of Shading of single sub-pixels can be prevented, when user watches and shows equipment, it can effectively solve colour cast Problem, and then promote the ornamental quality of user.Also, first metal wire 51 and second metal wire 52, which is arranged, can reinforce first With the electric conductivity of second electrode block 1,2, in effectively reducing, in big size device first and second electrode block 1,2 resistance value mistake High situation.
Alternatively, refer to Fig. 7, display module includes plural pixel 61,62,63, and each pixel 61,62,63 includes along the The first sub-pixel 71, the second sub-pixel 72, third sub-pixel 73 and the 4th sub-pixel 74 of three directions arrangement, those sub-pixels Color it is different, can be each independently selected from by:Red, green, blue, dark green, yellow, white and colourless formed group Group.Such as:Red, green, blue and dark green combination (RGBC);Or the combination of red green, blue and yellow (RGBY);Or the combination (RGBW) of red green, blue and white.In this embodiment, which arranges for vertical bar type Row.In the case, the angle (θ of the acute angle5) it is to be defined with following equation:
θ5=[tan-1(BY/X)]±2°
In party's formula, X is the distance of the central point 611,631 along two adjacent pixels 61,63 of the third direction, Y For along the distance of the central point 611,621 of two adjacent pixels 61,62 of the fourth direction of a vertical third direction, and 0.5≤B ≤1。
Alternatively, refer to Fig. 8, display module includes plural pixel 61,62,63, and each pixel 61,62,63 includes along the The first sub-pixel 71, the second sub-pixel 72 and the third sub-pixel 73 of three directions arrangement, and those first sub-pixels 71 are wherein One of, one of those the second sub-pixels 72, with one of those third sub-pixels 73 be along the fourth direction phase Neighbour's arrangement.In this embodiment, which arranges for Mosaic style.In the case, the angle (θ of the acute angle6) be with Following equation definition:
θ6=[tan-1(BY/X)]±2°
In party's formula, X is the distance of the central point 611,631 along two adjacent pixels 61,63 of the third direction, Y For along the distance of the central point 611,621 of two adjacent pixels 61,62 of the fourth direction, and B is 0.5.
Alternatively, referring to Fig. 9, those first sub-pixels 71, those second sub-pixels 72 are with those third sub-pixels 73 Along one the 5th direction arranged adjacent, and the 5th direction is different from the third direction and the fourth direction, should in this embodiment Plural pixel arranges for triangular form.Wherein, the metal wire 51, one of 52 along one perpendicular to the four directions of the third direction It is in an acute angle relative to the third direction shape to extension, the angle (θ of the acute angle4) it is to be defined with following equation:
θ4=[tan-1(CY/X)]±2°
Wherein, X is the distance of the central point 611,631 along two adjacent pixels 61,63 of the third direction, Y be along this The distance of the central point 611,621 of two adjacent pixels 61,62 of four directions, and C is 5.
Embodiment 3
Figure 10 is the touch control unit schematic diagram of the another preferred embodiment of the present invention, display first electrode block 1, second electrode block 2 are made as another pattern;First metal wire 51 and second metal wire 52 are straight line, and in the first electrode block 1 and the Respectively there is a turning point (not shown) on two electrode blocks 2;And bridging line 3 identical with above-described embodiment 1, insulating layer 4.Other With the relevant explanation of each component all such as above-described embodiment 1,2, repeated no more in this embodiment.
Above-described embodiment is illustrated only for facilitating explanation, and the interest field that the present invention is advocated certainly should be with application Subject to described in right, not just the above examples.

Claims (7)

1. a kind of touch control display device, including:
One display module includes the first different sub-pixel of a plurality of colors, the second sub-pixel and third sub-pixel;And
A plurality of touch control units are set on the display module, and each touch control unit includes:
Two first electrode blocks are arranged along a first direction;
The two second electrode blocks being electrically connected, arrange along a second direction;
One bridging line is electrically connected the two first electrodes block, wherein the bridging line has one to be more than zero relative to the first direction Angle, θ1, wherein 0 °<θ1<90°;And
One insulating layer is set between the bridging line and the two second electrodes block;
Wherein, in the bridging line of wherein two adjacent touch control units of those touch control units on the first direction be with one it is parallel should The axial symmetry of second direction is arranged, and the bridging line of the wherein two adjacent touch control units in the second direction those touch control units It is to be arranged with the axial symmetry of a parallel first direction;
Wherein, which includes a plurality of pixels, each pixel include along a third direction arranged adjacent those One of one of first sub-pixel, those second sub-pixels and one of those third sub-pixels, In, the bridging line is in an acute angle relative to the third direction shape, the angle, θ of the acute angle2It is to be defined with following equation:
θ2=[tan-1(BY/X)]±2°
Wherein, X is the distance of the central point along two adjacent pixels of the third direction, and Y is along the of a vertical third direction The distance of the central point of two adjacent pixels of four directions, and 0.5≤B≤1.
2. touch control display device as described in claim 1, wherein those first sub-pixels, those second sub-pixels and those Third sub-pixel is selected from the group being made of red, green, blue, cyan, yellow, white.
3. touch control display device as described in claim 1, wherein each the touch control unit includes:
One first metal wire and one second metal wire, first metal wire are set on the two first electrodes block, second metal Line is set on two second metal derby, and first metal wire is to be electrically insulated from second metal wire;
Wherein, each metal wire is in, at least across three sub-pixels, and three sub-pixels are respectively on corresponding electrode block One of one of those first sub-pixels, those second sub-pixels and one of those third sub-pixels.
4. touch control display device as claimed in claim 3, wherein first metal wire on the first electrode block have at least One turnover, and second metal wire on the second electrode block have at least one transfer.
5. touch control display device as claimed in claim 3, wherein one of first metal wire and second metal wire It is the fourth direction extension along a vertical third direction and forms an acute angle theta relative to the third direction3, the angle of the acute angle θ3It is to be defined with following equation:
θ3=[tan-1(BY/X)]±2°
Wherein, X is the distance of the central point along two adjacent pixels of the third direction, and Y is along two adjacent pictures of the fourth direction The distance of the central point of element, and 0.5≤B≤1.
6. touch control display device as claimed in claim 5, wherein one of those first sub-pixels, those second sons One of pixel, with one of those third sub-pixels be along the fourth direction arranged adjacent, in party's formula, B is 0.5.
7. touch control display device as claimed in claim 3,
Wherein, one of one of those first sub-pixels, those second sub-pixels, with those third sub-pixels One of them is along one the 5th direction arranged adjacent, and the 5th direction is different from third direction third direction vertical with one Fourth direction, one of first metal wire and second metal wire are the fourth directions along a vertical third direction Extension and, the angle, θ of the acute angle in an acute angle relative to the third direction shape4It is to be defined with following equation:
θ4=[tan-1(CY/X)]±2°
Wherein, X is the distance of the central point along two adjacent pixels of the third direction, and Y is along two adjacent pictures of the fourth direction The distance of the central point of element, and C is 5.
CN201410128530.4A 2014-04-01 2014-04-01 Touch control display device Active CN104978055B (en)

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Publication number Priority date Publication date Assignee Title
CN105786260B (en) * 2016-04-22 2018-09-11 京东方科技集团股份有限公司 A kind of touch screen and display device
KR20190023359A (en) * 2017-08-28 2019-03-08 엘지디스플레이 주식회사 Touch screen panel and display device including the same
CN109375802A (en) * 2018-09-29 2019-02-22 武汉天马微电子有限公司 A kind of touch-control display panel and device
CN109343744A (en) * 2018-12-07 2019-02-15 武汉华星光电半导体显示技术有限公司 A kind of touch screen and electronic device

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CN103177691A (en) * 2013-03-26 2013-06-26 深圳市华星光电技术有限公司 Flat-panel display

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CN203012670U (en) * 2012-12-13 2013-06-19 介面光电股份有限公司 Touch display device
CN103177691A (en) * 2013-03-26 2013-06-26 深圳市华星光电技术有限公司 Flat-panel display

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