WO2016045252A1 - Écran tactile, son procédé de fabrication et dispositif d'affichage tactile - Google Patents

Écran tactile, son procédé de fabrication et dispositif d'affichage tactile Download PDF

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Publication number
WO2016045252A1
WO2016045252A1 PCT/CN2015/070432 CN2015070432W WO2016045252A1 WO 2016045252 A1 WO2016045252 A1 WO 2016045252A1 CN 2015070432 W CN2015070432 W CN 2015070432W WO 2016045252 A1 WO2016045252 A1 WO 2016045252A1
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Prior art keywords
line
driving
sensing
sensing line
driving line
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PCT/CN2015/070432
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English (en)
Chinese (zh)
Inventor
张明
胡明
张雷
公伟刚
Original Assignee
京东方科技集团股份有限公司
合肥鑫晟光电科技有限公司
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Publication of WO2016045252A1 publication Critical patent/WO2016045252A1/fr

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • 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
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • 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
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
    • 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
    • G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
    • 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
    • G06F2203/04111—Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate

Definitions

  • Embodiments of the present invention relate to a touch screen, a method of fabricating the same, and a touch display device.
  • Touch displays have grown rapidly and have evolved into mainstream flat panel displays.
  • the touch display is mostly made by a touch screen with touch function, and the touch screen is mostly made of capacitive sensing.
  • the main structure includes a driving line and a sensing line which are criss-crossed through the insulating layer, when the finger ( When it is close to or touched, it affects the capacitance between the drive line and the sense line that intersect near the touch point.
  • the position of the touch point can be identified by detecting the change in capacitance between the drive line and the sense line.
  • a touch screen includes a substrate, a patterned metal mesh layer formed on the substrate, a transparent insulating layer, and a patterned transparent conductive layer.
  • the metal mesh layer includes a first driving line and a first sensing line that intersect each other, the transparent conductive layer includes a second driving line and a second sensing line, and the second driving line is distributed along the first driving line And forming a driving line in parallel with the first driving line, and the second sensing line is distributed along the first sensing line and connected in parallel with the first sensing line to form an sensing line.
  • the first driving line is continuous, the first sensing line is disconnected at an intersection of the first driving line and the first sensing line, and is turned on by the second sensing line; or the first driving line Disconnected at an intersection of the first drive line and the first sense line and conducted through the second drive line, the first sense line being continuous.
  • the second driving line is overlapped on the first driving line; the second sensing line is overlapped on the first sensing line; except for the intersection of the driving line and the sensing line,
  • the second driving line has the same contour as the first driving line, and the second sensing line has the same contour as the first sensing line.
  • the transparent insulating layer is distributed only at the intersection of the driving line and the sensing line.
  • the transparent insulating layer is distributed in a whole layer and provided with a via hole, and the first driving line is connected to the second driving line through a via hole, and the first sensing line passes through the via hole and the second sensing line. Connected.
  • the touch screen further includes a black matrix located at an edge of the touch screen to avoid edge leakage.
  • the black matrix is formed on the substrate and under the metal mesh layer.
  • the first drive line and the first sense line each comprise a plurality of diamond patterns.
  • the substrate is a protective substrate of a display panel.
  • a touch display device includes a touch screen as described above.
  • a method of fabricating a touch screen includes:
  • a process of forming a patterned metal mesh layer including first driving lines and first sensing lines crossing each other;
  • the transparent conductive layer includes a second driving line and a second sensing line
  • the second driving line is distributed along the first driving line and connected in parallel with the first driving line to form a driving line
  • the second sensing line is distributed along the first sensing line and connected in parallel with the first sensing line to form a sensing line.
  • the first driving line is continuous, the first sensing line is disconnected at an intersection of the first driving line and the first sensing line, and is turned on by the second sensing line; or the first driving line Disconnected at an intersection of the first drive line and the first sense line and conducted through the second drive line, the first sense line being continuous.
  • the second driving line is overlapped on the first driving line; the second sensing line is overlapped on the first sensing line; except for the intersection of the driving line and the sensing line,
  • the second driving line has the same contour as the first driving line, and the second sensing line has the same contour as the first sensing line.
  • the step of forming a transparent insulating layer includes: a film forming step and an etching step; in the step of forming a transparent insulating layer, the transparent insulating layer formed is distributed only on the driving line and the sensing line Intersection area.
  • the step of forming a transparent insulating layer includes: a film forming step and an etching step; and in the step of forming a transparent insulating layer, the transparent insulating layer is formed to distribute and etch a via hole
  • the first driving line is connected to the second driving line through a via
  • the first sensing line is connected to the second sensing line through a via.
  • the manufacturing method further includes a process of forming a black matrix located at an edge of the touch screen to avoid edge leakage.
  • the black matrix is formed on the substrate and under the metal mesh layer.
  • FIG. 1 is a schematic cross-sectional structural view of a touch screen according to Embodiment 1 of the present invention.
  • FIG. 2 is a schematic plan view showing a planar structure of a metal mesh layer of the touch screen shown in FIG. 1;
  • FIG. 3 is a schematic plan view showing a transparent insulating layer of the touch screen shown in FIG. 1;
  • FIG. 4 is a schematic plan view showing a planar structure of a transparent conductive layer of the touch screen shown in FIG. 1;
  • FIG. 5 is a cross-sectional structural diagram of another touch screen according to Embodiment 1 of the present invention.
  • FIG. 6 is a schematic plan view showing the structure of the touch screen shown in FIG. 5;
  • FIG. 7 is a schematic diagram of a manufacturing process of a touch screen according to Embodiment 2 of the present invention.
  • the driving line and the sensing line of the touch screen In order to reduce the resistance and adapt to the large-size display product, the driving line and the sensing line of the touch screen generally adopt a metal mesh (Metal Mesh) structure, and the driving line and the sensing line are respectively formed by two metal films insulated from each other.
  • Metal Mesh Metal Mesh
  • the inventor found that in the actual design, if a good touch effect is to be achieved, on the one hand, the capacitance value between the driving line and the sensing line needs to be reached and maintained at a certain value when no touch occurs, and on the other hand, When the touch occurs, the amount of capacitance change between the drive line and the sense line is guaranteed to be within a certain range (for example, 20% when no touch is applied). If the design of the metal grid is used, the capacitance value is likely to be small, resulting in touch sensitivity. Not enough or even the touch function can not be achieved.
  • Embodiments of the present invention provide a touch screen, a manufacturing method thereof, and a touch display device, which have the advantages of low resistance when the driving line and the sensing line are designed by using a metal grid, and overcome the shortage of the capacitance value, and can solve the capacitance.
  • the value of the touch is too small, so the touch sensitivity is not enough, and the touch function cannot be realized.
  • Embodiments of the present invention provide a touch screen including: a substrate, a patterned metal mesh layer formed on the substrate, a transparent insulating layer, and a patterned transparent conductive layer, wherein the metal mesh layer includes mutually intersecting a first driving line and a first sensing line, the transparent conductive layer includes a pattern of a second driving line and a second sensing line, and the second driving line is distributed along the first driving line and connected in parallel with the first driving line to form a driving line.
  • the second sensing line is distributed along the first sensing line and connected in parallel with the first sensing line to form a sensing line.
  • the first driving line and the second driving line located above the first driving line are connected in parallel to form a driving line, and the first sensing line and the second sensing line above thereof are connected in parallel to form an sensing line, that is, this embodiment
  • the driving line and the sensing line adopt a two-layer film structure, the first layer is a first driving line and a first sensing line formed by a metal mesh layer, and the second layer is a second driving line and a second sensing line formed by the transparent conductive layer;
  • the intermediate transparent insulating layer is used to ensure that the driving lines (including the first and second driving lines) are insulated from the sensing lines (including the first and second sensing lines).
  • the first and second driving lines are connected in parallel to form a driving line
  • the first and second sensing lines are connected in parallel to form an inductive line
  • the resistance is reduced in parallel, and the resistance is smaller than that of the metal grid alone or the transparent conductive material alone, so that the driving is small.
  • the resistance of the line and the sensing line is further reduced, and the metal grid design has the advantage of low resistance.
  • the above-mentioned "parallel connection" includes the case where the upper and lower line segments (for example, the first and second drive lines) have only two or more connection points in the middle portion, so that only a part of the line segments in the upper and lower line segments have a parallel relationship.
  • the second driving line and the second sensing line are formed by a transparent conductive layer (for example, ITO), so that the capacitance of the driving line and the sensing line can reach the capacitance when the driving line and the sensing line are separately formed by using the transparent conductive layer, thereby overcoming the metal.
  • ITO transparent conductive layer
  • Insufficient capacitance value during grid design solves the problem that the touch sensitivity caused by this is insufficient or even the touch function cannot be realized.
  • the above touch structure can be formed by three mask processes, the process process is simple, the production cost is low, and the yield rate is high in mass production.
  • a touch screen provided in this embodiment includes a substrate 9 , a patterned metal mesh layer 10 formed on the substrate 9 , a transparent insulating layer 20 , and a patterned transparent layer.
  • the conductive layer 30 and the metal mesh layer 10 have a pattern formed as shown in FIG. 2, including a first driving line 11 and a first sensing line 12 that intersect each other.
  • the first driving line 11 and the first sensing line 12 are both made of a metal grid. a structure in which one (eg, first sensing line 12) is continuous and the other (eg, first driving)
  • the line 11) is interrupted at the intersection and is turned on by the second driving line or the second sensing line (not shown in FIG. 2), and the gap 13 is etched between the first driving line 11 and the first sensing line 12 to ensure that the gap 13 is ensured.
  • the first driving line 11 and the first sensing line 12 are insulated.
  • Figure 1 is a cross-sectional view taken along line A-A' of Figures 2 to 4.
  • the transparent conductive layer 30 is formed with a second driving line 31 and a second sensing line 32.
  • the specific pattern is as shown in FIG. 4: the second driving line 31 is overlapped on the first driving line 11, and the first driving line 11 is intermittent at the intersection.
  • the second driving line 31 remains continuous at the intersection (if the first driving line 11 is continuous at the intersection, the second driving line 31 is discontinuous at the intersection); the second sensing line 32 is overlapped on the first sensing line 12, The first sensing line 12 is continuous at the intersection, and the second sensing line 32 is discontinuous at the intersection (if the first sensing line 12 is interrupted at the intersection, the second sensing line 32 remains continuous at the intersection); Further, the second driving line 31 has the same contour as the first driving line 11, and the second sensing line 32 has the same contour as the first sensing line 12. That is, except for the intersection, the second driving line 31 coincides with the contour of the first driving line 11 and completely overlaps; the second sensing line 32 coincides with the contour of the first sensing line 12 and completely overlaps.
  • the transparent insulating layer 20 between the metal mesh layer 10 and the transparent conductive layer 30 is distributed only at the intersection of the driving line and the sensing line.
  • the driving line here is formed by overlapping the first and second driving lines, and includes first and second driving lines; wherein the sensing line is formed by overlapping the first and second sensing lines, including the first and second sensing lines. line.
  • the transparent insulating layer 20 can design according to the actual situation, as long as the short-circuit danger of each driving line and each sensing line can be ensured.
  • the transparent insulating layer 20 is made of OC material, and all the OCs in the pixel region are to be excavated, that is, the local OC is used, and only the OC at the intersection of the driving line and the sensing line is kept to prevent short-circuiting between the two.
  • the transparent conductive layer 30 is made of, for example, an ITO material, and in addition to the function of bridging the first driving line 11 , it covers the entire pixel area, except that the driving line and the sensing line do not need to communicate (intersection area). Phase separation.
  • the driving line as a whole can be regarded as an overlapping structure of a first driving line 11 composed of a metal mesh and a second driving line 31 formed of a transparent conductive material, and in the direction of the driving line (ie, the longitudinal direction in the drawing)
  • the first driving line 11 formed of a metal grid and the second driving line 31 formed of a transparent conductive material are combined and connected to realize a touch function.
  • the structure of the sensing line is similar and will not be described again.
  • Over Coat is a transparent insulating photoresist which is often used in the art to protect the black matrix BM, the metal layer and the like and to reduce the difference in height between the layers.
  • the transparent insulating layer 20 is only distributed at the intersection of the driving line and the sensing line. Therefore, the second driving line 31 is directly overlapped on the first driving line 11, and the second sensing line 32 is directly Lap on the first sensing line 12, the transparent insulating layer 20 does not need to be a via.
  • the accuracy of the pattern of the transparent insulating layer 20 is reduced, and it can be made by using an organic insulating transparent material by printing or coating.
  • the present embodiment uses only one layer of metal mesh, the aperture ratio of the touch screen product of the prior art two-layer metal grid is greatly increased, and since the metal mesh layer 10 is directly connected to the transparent conductive layer 30, In parallel, the resistance value is smaller than that of the metal mesh or the transparent conductive material alone, thereby achieving the purpose of reducing the resistance and increasing the aperture ratio.
  • the metal mesh layer 10 and the transparent conductive layer 30 together form a driving line and a sensing line, which are equivalent to the capacitance formed by the conventional solution (using the transparent conductive material ITO to form the driving line and the sensing line), and are useful for utilizing the existing one.
  • the chip can achieve better touch effects, and is also more suitable for capacitive touch functions in large-size products.
  • FIG. 5 is a cross-sectional view of FIG. 6 along the longitudinal line AA′, and FIG. 6 is not a longitudinal line A for simplicity. -A', its position can be referred to Figure 2 to Figure 4.
  • the first type of touch screen is different from the above-mentioned touch screen in that the transparent insulating layer 20 is distributed in a whole layer and is provided with a via hole 21, and the first driving line 11 is connected to the second driving line 31 through the via hole 21, first The sensing line 12 is connected to the second sensing line 32 through the via 21 .
  • the second touch screen provided in this embodiment is substantially the same as the first type of touch screen, and the transparent insulating layer 20 is also formed by using an OC material, but adopts a full OC manner in the pixel region, thereby forming the transparent conductive layer 30 and the metal mesh.
  • a large-area OC insulating layer is disposed between the grid layers 10, and the transparent conductive layer 30 and the metal mesh layer 10 are electrically connected by via holes 21 (for example, as shown in FIG. 6, the via holes 21 are disposed on the metal grid. The location of the junction)).
  • via holes 21 for example, as shown in FIG. 6, the via holes 21 are disposed on the metal grid. The location of the junction
  • the driving line is The coupling capacitance between the sensing line and the sensing line is also relatively large, which contributes to the improvement of touch sensitivity.
  • the touch screen in the above embodiment may further include: a black matrix 40 located at an edge of the touch screen to avoid edge leakage.
  • the black matrix 40 is generally formed on the substrate 9 and is located below the metal mesh layer 10.
  • first driving line 11 and the first sensing line 12 in the above embodiment are not limited, and may be any one of those well known to those skilled in the art.
  • a pattern in which the first driving line 11 and the first sensing line 12 are connected in a plurality of diamond shapes will be described as an example.
  • the touch screen provided in this embodiment may separately form a product having a touch function, such as a touch screen, or may use an OGS (one glass solution) technology to provide the touch screen structure provided by this embodiment.
  • OGS one glass solution
  • the substrate described in this embodiment is the protective substrate of the display panel.
  • the touch screen provided by the embodiment of the invention further reduces the resistance of the driving line and the sensing line, and has the advantages of low resistance when the metal grid is designed, and the capacitance of the driving line and the sensing line can form a driving line with the transparent conductive layer alone.
  • the sensing line is almost the same, the existing chip can achieve better touch effect, and also overcome the shortage of the capacitance value in the metal grid design, which is more conducive to the realization of the capacitive touch function in the large size product.
  • there is only one layer of metal mesh the thickness of the product is reduced, and the aperture ratio and transmittance are improved.
  • the embodiment of the invention further provides a touch display device, comprising: the touch screen of any one of the above. Since the touch display device adopts the touch screen structure described above, it has the advantages of high touch sensitivity, light weight, and good display effect; and the production process is simple, the product quality is easy to control, and the production cost can be reduced and the production efficiency can be improved. Moreover, the number of processes is small, the product quality is stable, and the yield of mass production is high.
  • the touch display device may be any product or component having a touch function, such as a liquid crystal panel, an electronic paper, an OLED panel, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like.
  • a touch function such as a liquid crystal panel, an electronic paper, an OLED panel, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like.
  • the embodiment of the invention further provides a method for manufacturing a touch screen.
  • the method includes the following steps:
  • the patterned transparent conductive layer may be formed in step 103, the transparent insulating layer is formed in step 102, and finally the patterned metal mesh layer is formed in step 101. .
  • the touch screen manufacturing method provided by the embodiment is formed by three mask processes (the mask process is used in each step of 101, 102, and 103), the touch structure can be formed, the process is simple, the production cost is low, and the yield rate is in mass production. high.
  • the first driving line and the first sensing line are continuous, and the other is interrupted at the intersection and is turned on by the second driving line or the second sensing line; a driving line is overlapped on the first driving line, and if the first driving line is interrupted at an intersection, the second driving line remains continuous at the intersection; the second sensing line is overlapped at the first sensing On the line, if the first sensing line is continuous at the intersection, the second sensing line is interrupted at the intersection; in addition, the second sensing line has the same contour as the first sensing line.
  • the second drive line has the same contour as the first drive line.
  • the step of forming the transparent insulating layer in step 102 includes, for example, a film forming step and an etching step.
  • the formed transparent insulating layer is distributed only at the intersection of the driving line and the sensing line.
  • the transparent insulating layer is formed to distribute and etch a via hole, and the first driving line is connected to the second driving line through the via hole, and the first sensing line passes through the via hole and the second sensing line. Lines are connected.
  • the method may further include: a process of forming a black matrix.
  • the touch screen manufacturing method provided by the embodiment of the present invention will be briefly described by taking the touch screen shown in FIG. 1 as an example.
  • the cross-sectional view is shown in FIG. Refer to Figures 2 to 3.
  • Step one using a patterning process (first mask) to form a black matrix 40 at the edge of the touch screen to avoid edge leakage;
  • Step two forming a metal film and forming a first driving line and a first sensing line formed by a metal mesh by a patterning process (second time mask); the first driving line and the first sensing line are continuous, and the other is at the intersection Intermittent
  • Step three forming a transparent metal film and adopting a patterning process (third time mask) to drive only A transparent metal film is left at an intersection of the wire and the sensing wire;
  • step four a transparent conductive film is formed and a second driving line and a second sensing line are formed by a patterning process (fourth time mask).
  • the touch screen can be formed by using 4 masks, the process is small, the production cost can be greatly reduced, the production efficiency is improved, the product quality is stable, and the mass production yield is high; and the formed touch screen has the design of using the metal grid.
  • the advantage of low resistance is that the capacitance value is too small, and the problem that the touch sensitivity is small and the touch function cannot be realized can be solved, especially for large-size products.

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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

L'invention concerne un écran tactile, son procédé de fabrication et un dispositif d'affichage tactile. L'écran tactile comprend : un substrat (9) ; une couche de grille métallique à motifs (10) ; une couche isolante transparente (20) ; et une couche conductrice transparente à motifs (30). Lesdites couches sont formées sur le substrat (9). La couche de grille métallique (10) comprend des premières lignes d'excitation (11) et des premières lignes de détection (12) qui s'entrecroisent. La couche conductrice transparente (30) comprend des secondes lignes d'excitation (31) et des secondes lignes de détection (32). Les secondes lignes d'excitation (31) sont réparties le long des premières lignes d'excitation (11) et raccordées en parallèle aux premières lignes d'excitation (11) de façon à former des lignes d'excitation. Les secondes lignes de détection (32) sont réparties le long des premières lignes de détection (12) et raccordées en parallèle aux premières lignes de détection (12) de façon à former des lignes de détection.
PCT/CN2015/070432 2014-09-23 2015-01-09 Écran tactile, son procédé de fabrication et dispositif d'affichage tactile WO2016045252A1 (fr)

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CN201410491700.5A CN104281320A (zh) 2014-09-23 2014-09-23 触摸屏及其制作方法、触摸显示装置
CN201410491700.5 2014-09-23

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CN106201138A (zh) * 2016-06-30 2016-12-07 京东方科技集团股份有限公司 触摸屏及显示装置
KR102089340B1 (ko) * 2016-08-31 2020-03-16 엘지디스플레이 주식회사 터치 센서를 가지는 유기 발광 표시 장치 및 그 제조 방법
KR102565306B1 (ko) * 2016-11-23 2023-08-10 엘지디스플레이 주식회사 표시패널 및 터치표시장치
CN107844219B (zh) * 2017-11-17 2022-02-11 合肥鑫晟光电科技有限公司 触控基板及其制作方法、显示装置
CN108803953A (zh) * 2018-06-08 2018-11-13 芜湖长信科技股份有限公司 一种电容式触摸屏
CN109213390B (zh) 2018-07-26 2020-08-07 武汉华星光电技术有限公司 增大互容的触控屏金属网格结构
CN112015285B (zh) * 2019-05-28 2023-07-18 敦泰电子有限公司 具有发光二极管的触摸板
TWI704484B (zh) 2019-07-31 2020-09-11 友達光電股份有限公司 觸控顯示裝置
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