WO2017181821A1 - 触摸屏及显示装置 - Google Patents
触摸屏及显示装置 Download PDFInfo
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- WO2017181821A1 WO2017181821A1 PCT/CN2017/078268 CN2017078268W WO2017181821A1 WO 2017181821 A1 WO2017181821 A1 WO 2017181821A1 CN 2017078268 W CN2017078268 W CN 2017078268W WO 2017181821 A1 WO2017181821 A1 WO 2017181821A1
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- WIPO (PCT)
- Prior art keywords
- electrodes
- line
- connection
- touch screen
- connecting portion
- Prior art date
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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
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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
- 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
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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
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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
- 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
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- 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
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- 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
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- 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
- G06F2203/04112—Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material
Definitions
- the present application relates to the field of display technologies, and in particular, to a touch screen and a display device.
- touch screens have become an input device with a wide range of applications in the field of display technology.
- One of the objects of the embodiments of the present application is to provide a touch screen and a display device.
- a touch screen including:
- a plurality of first electrodes disposed on the substrate and extending along the first direction, and at least one of the plurality of first electrodes includes a plurality of first electrodes spaced apart from each other;
- a plurality of second electrodes extending in a second direction crossing the first direction and disposed in the same layer as the plurality of first electrodes, and at least one of the plurality of second electrodes includes a plurality of spaced apart from each other Second electrode
- connection line a first connection line, a second connection line, a third connection line, and a fourth connection line disposed in at least one intersection area of the plurality of first electrodes and the plurality of second electrodes;
- a transparent first connecting portion and a transparent second connecting portion disposed in the same layer as the plurality of first electrodes and the plurality of second electrodes in the at least one intersection region, the second connecting portion and the second connecting portion a connection is insulated;
- the first connecting portion is electrically connected to two adjacent first electrodes through a first connecting line and a second connecting line, respectively, and a sum of lengths of the first connecting line and the second connecting line is smaller than adjacent ones a distance between two of the first electrodes;
- the second connecting portion is electrically connected to two adjacent second electrodes through the third connecting line and the fourth connecting line, respectively, and the sum of the lengths of the third connecting line and the fourth connecting line is smaller than the adjacent ones. The distance between the two said second electrodes.
- the first connection portion is formed as a half-surrounding structure, and at least a portion of the second connection portion is housed in the half-surrounding structure.
- the semi-enclosed structure has an opening through which at least a portion of the second connection is received.
- the second connection is completely received in the semi-enclosed structure.
- At least one of the third connection line and the fourth connection line is electrically connected to the second electrode across the first connection portion and is electrically insulated from the first connection portion.
- the semi-enclosed structure is U-shaped, semi-circular, elliptical, curved or meandering.
- the second connecting portion is rectangular, square, circular, elliptical or prismatic.
- first connection line and the second connection line are both metal lines; or
- One of the first connection line and the second connection line is a metal line and the other one is a transparent conductive layer; or
- the first connection line and the second connection line are both transparent conductive layers.
- the first electrode and the first connection portion are transparent conductive layers
- the first connecting line is a transparent conductive layer
- the first connecting line and the first connecting portion respectively connected to the first connecting portion are made of the same material and have a unitary structure;
- the second connecting line is a transparent conductive layer
- the second connecting line and the first connecting portion respectively connected to the first connecting portion are made of the same material and have an integral structure.
- the third connection line and the fourth connection line are both metal lines.
- one of the third connection line and the fourth connection line that does not span the first connection portion is a transparent conductive layer, and the second electrode and the second connection portion connected to each other are the same Made of material and in one piece.
- the material of the transparent conductive layer includes one of indium zinc oxide and indium tin oxide or any combination thereof.
- the material of the metal wire includes one of copper, aluminum, molybdenum, or any combination thereof.
- one of the first electrode and the second electrode is a touch sensing electrode and the other of the touch driving electrodes.
- a display device including the touch screen described above.
- FIG. 1 is a schematic diagram of a touch screen structure
- FIG. 2 is a schematic structural diagram of a touch screen according to an embodiment of the present application.
- FIG. 3 is a schematic structural diagram of a modification of a touch screen according to an embodiment of the present disclosure
- FIG. 4 is a schematic structural diagram of another modification of a touch screen according to an embodiment of the present disclosure.
- FIG. 5 is a schematic structural diagram of still another modification of the touch screen according to an embodiment of the present application.
- a single-layer bridge type touch screen structure includes a plurality of first electrodes 11 and a plurality of second electrodes 12 disposed in the same layer (one of the first electrode and the second electrode is a touch driving electrode, and the other Then as a touch sensing electrode).
- a transparent indium tin oxide (ITO) strip connection provided in the same layer connects the adjacent two first electrodes 11, and a metal wire 13 made of a low-resistance metal material serves as a connection portion to realize two adjacent ones.
- the second electrode 12 is bridged, and a transparent insulating layer is disposed between the metal wire 13 and the transparent ITO strip-shaped connecting portion.
- the metal wire 13 prepared by the metal material is opaque, the metal wire 13 covers a part of the display area when the touch screen is stacked on the display panel, and appears as a black dot or a black line on the screen, thereby reducing the visibility of the display device. .
- An embodiment of the present application provides a touch screen including a plurality of first electrodes disposed on a substrate and extending in a first direction, and at least one of the plurality of first electrodes includes a plurality of spaced apart from each other First electrode
- a plurality of second electrodes extending in a second direction crossing the first direction and disposed in the same layer as the plurality of first electrodes, and at least one of the plurality of second electrodes includes a plurality of spaced apart from each other Second electrode
- connection line a first connection line, a second connection line, a third connection line, and a fourth connection line disposed in at least one intersection area of the plurality of first electrodes and the plurality of second electrodes;
- a transparent first connecting portion and a transparent second connecting portion disposed in the same layer as the plurality of first electrodes and the plurality of second electrodes in the at least one intersection region, the second connecting portion and the second connecting portion a connection is insulated;
- the first connecting portion is electrically connected to two adjacent first electrodes through a first connecting line and a second connecting line, respectively, and a sum of lengths of the first connecting line and the second connecting line is smaller than adjacent ones a distance between two of the first electrodes;
- the second connecting portion is electrically connected to the two adjacent second electrodes by the third connecting line and the fourth connecting line, respectively, and the sum of the lengths of the third connecting line and the fourth connecting line is smaller than the adjacent ones. The distance between the two said second electrodes.
- At least one of the third connection line and the fourth connection line is electrically connected to the second electrode across the first connection portion and is electrically insulated from the first connection portion.
- the first electrode in at least one intersection region of the first electrode and the second electrode, is connected to the first connecting portion by a connecting line having a length smaller than a distance between the adjacent first electrodes, and the second electrode is A connecting line having a length smaller than a distance between adjacent second electrodes is connected to the second connecting portion.
- the length of the connecting line is reduced, thereby improving the visibility problem and improving the display quality.
- the specific structure of the first connecting line and the second connecting line may be various, for example, a metal wire or a transparent conductive layer.
- the number of metal lines can be flexibly set according to the resistance requirements.
- first connection line and the second connection line are both metal lines; or, one of the first connection line and the second connection line is a metal line and the other one is a transparent conductive layer; or, first Both the connecting line and the second connecting line are transparent conductive layers.
- the first electrode and the first connection portion are transparent conductive layers
- the first connecting line is a transparent conductive layer
- the first connecting line and the respectively connected first electrode and the first connecting portion are made of the same material and have a unitary structure;
- the second connecting line is a transparent conductive layer
- the second connecting line and the respectively connected first electrode and the first connecting portion are made of the same material and have an integral structure.
- the integrated structure can be provided, which is advantageous for simplifying the manufacturing process and improving the production efficiency.
- the materials of the third connecting wire and the fourth connecting wire are also various, for example, a metal wire or a transparent conductive layer.
- the number of metal lines can be flexibly set according to the resistance requirements.
- the third connection line and the fourth connection line are both metal lines.
- one of the third connection line and the fourth connection line that does not span the first connection portion is a transparent conductive layer, and the second electrode and the second connection portion that are connected to each other are made of the same material. Made and integrated.
- the connecting line or the fourth connecting line is a transparent conductive layer, but cannot be simultaneously disposed such that the third connecting line and the fourth connecting line are both transparent conductive layers because the first connecting line, the second connecting line, and the first At least a portion of the connection portion needs to be considered for electrical insulation therewith.
- the second electrode and the second connection are transparent conductive layers.
- the integrated structure can be provided, which is advantageous for simplifying the manufacturing process and improving the production efficiency.
- the material of the transparent conductive layer includes one of Indium Tin Oxide (ITO) and Indium Zinc Oxide (IZO).
- ITO Indium Tin Oxide
- IZO Indium Zinc Oxide
- the material of the metal wire is a low resistance metal.
- the material of the metal wire includes one of copper, aluminum, molybdenum or any combination thereof, and may also include other suitable low resistance metal materials.
- the shape and arrangement of the first connecting portion and the second connecting portion have many different forms.
- the first connection portion is formed as a half-surrounding structure, and at least a portion of the second connection portion is housed in the half-surrounding structure.
- the semi-enclosed structure has an opening through which at least a portion of the second connection is received.
- the second connection is completely received in the semi-enclosed structure.
- the semi-enclosed structure is U-shaped, semi-circular, elliptical, curved or meandering, and any other suitable shape.
- the second connecting portion is rectangular, square, circular, elliptical or prismatic and any other suitable shape.
- the first electrode is a touch sensing electrode and the second electrode is a touch driving electrode; or the first electrode is a touch driving electrode and the second electrode is a touch sensing electrode.
- first connecting portion as a U-shaped shape and the second connecting portion as a square.
- the manner of their arrangement is not limited thereto.
- the touch screen shown in FIG. 2 includes a plurality of first electrodes 2 and a plurality of second electrodes 3.
- the plurality of first electrodes 2 are disposed on the substrate 1 and extend in the first direction.
- at least one of the plurality of first electrodes 2 includes a plurality of first electrodes 21 spaced apart from each other.
- two first electrodes 2 are shown And both include a plurality of first electrodes 21.
- the plurality of second electrodes 3 are disposed in the same layer as the plurality of first electrodes 2 and extend in a second direction crossing the first direction. At least one of the plurality of second electrodes 3 includes a plurality of second electrodes 31 spaced apart from each other. In the example of FIG. 2, two second electrodes 3 are shown and each includes a plurality of second electrodes 31. It should be noted that, in the present example, the plurality of first electrodes 2 are disposed as row electrodes, and correspondingly the plurality of second electrodes 3 are disposed as column electrodes. The first direction and the second direction may cross vertically or at an angle, and a person skilled in the art may select according to actual needs.
- the touch screen further includes: a first connection line 6, a second connection line 7, a third connection line 8, and a fourth connection disposed in at least one intersection region of the plurality of first electrodes 2 and the plurality of second electrodes 3 a line 9, and a first connecting portion 4 and a second connecting portion 5 which are disposed in the same manner as the first electrode 21 and the second electrode 31 and are insulated from each other in the at least one intersecting region.
- the first connection portion 4 and the second connection portion 5 are transparent.
- the first connecting portion 4 is electrically connected to the adjacent two first electrodes 21 by the first connecting line 6 and the second connecting line 7, respectively, and the sum of the lengths of the first connecting line 6 and the second connecting line 7 is smaller than the adjacent ones. The distance between the two first electrodes 21.
- the second connecting portion 5 is electrically connected to the adjacent two second electrodes 31 by the third connecting line 8 and the fourth connecting line 9, respectively, and the sum of the lengths of the third connecting line 8 and the fourth connecting line 9 is smaller than the adjacent ones. The distance between the two second electrodes 31.
- the first connecting portion 4 is a U-shaped structure whose opening faces one adjacent second electrode 31; the second connecting portion 5 is rectangular.
- the first electrode 2, the second electrode 3, the first connecting portion 4, and the second connecting portion 5 are all transparent conductive layers.
- the material of the transparent conductive layer is ITO or IZO.
- first connection line 6, the second connection line 7, the third connection line 8, and the fourth connection line 9 are all metal wires.
- the material of the metal wire may be copper, aluminum, molybdenum or the like.
- a transparent insulating layer (not shown) is provided between the fourth connecting line 9 and the first connecting portion 4 for insulation.
- the second connecting portion 5 can be disposed close to The distance between the second electrodes 31 at the bottom of the U-shaped structure and the distance between the second connecting portion and the second electrode 31 facing the opening of the U-shaped structure are smaller than the distance between the adjacent two second electrodes 31. So that it can be extended to The lengths of the third connecting line 8 and the fourth connecting line 9 of the distance between the adjacent two second electrodes 31 become shorter, that is, the metal wires connecting the adjacent two second electrodes 31 can be shortened. In turn, the goal of improving visibility is achieved.
- the sum of the distances between the first connecting portion 4 and the adjacent two first electrodes 21 is also smaller than the distance between the adjacent two first electrodes 21, so that the two adjacent portions can be extended.
- the length of the first connecting line 6 and the second connecting line 7 of the distance between the electrodes 21 is shortened, thereby achieving the objective of improving the visibility problem.
- first connecting line 6, the second connecting line 7, the third connecting line 8 and the fourth connecting line 9 are all metal wires, which can greatly reduce the resistance and improve the sensitivity, and the length of each connecting line can be flexibly set to ensure Avoid the need for visibility issues while meeting sensitivity requirements.
- first connection portion 4 and the second connection portion 5 of different forms can be used to shorten the metal line of the first electrode or the second electrode that is to be connected to the adjacent first electrode or the second electrode.
- the length, that is, the problem of partially avoiding visibility can be achieved, for example, the first connection portion and/or the second connection portion can be used directly to partially replace the adjacent first electrode and/or second electrode for Just connect the metal wire.
- the first connection line 6, the second connection line 7, and the fourth connection line 9 are metal lines, and the third connection line 8 is changed from a metal line to a metal line.
- the third conductive line 8 is made of the same material as the second connecting portion 5 and the second electrode 31.
- the third connecting line 8 and the second connecting portion 5 and the second electrode 31 which are respectively connected are integrally formed. In this way, in the production process, the three structures can be produced by the same process, which is advantageous for simplifying the production process and improving production efficiency.
- the second connection line 7 and the fourth connection line 9 are metal lines, and the first connection line 6 and the third connection line 8 are changed from metal lines to metal lines.
- the first connecting line 6 is made of the same material as the first connecting portion 21 and the first connecting portion 4
- the third connecting line 8 is made of the same material as the second connecting portion 5 and the second electrode 31.
- the fourth connecting line 9 is a metal line, and the first connecting line 6, the second connecting line 7, and the third connecting line 8 are all changed from metal lines. It is a transparent conductive layer, and the first connecting line 6, the second connecting line 7, the first electrode 21, and the first connecting portion 4 are made of the same material, and the third connecting line 8 is made of the same material as the second connecting portion 5 and the second electrode 31. . At this time, the first connecting line 6, the second connecting line 7, the first electrode 21, and the first connecting portion 4 are integrated, and the third connecting line 8 is integrated with the second connecting portion 5 and the second electrode 31 respectively connected. Structure, while achieving the goal of improving visibility, it is conducive to simplifying the production process and improving the production. Productivity.
- the second connecting portion 5 can also be arranged to be completely accommodated in the first connecting portion 4, for example, to extend the second connecting portion 5 to the U-shaped opening of the first connecting portion 4 having a U-shaped structure,
- the second connecting portion 5 is made as close as possible to the first connecting portion 4 to further shorten the length of the fourth connecting line 9, thereby further improving the visual problem.
- another embodiment of the present application also provides a display device including any of the types of touch screens described above.
- the adjacent two first electrodes are connected by a length smaller than a distance between adjacent first electrodes.
- the line is connected to the first connecting portion, and the adjacent two second electrodes are connected to the second connecting portion by a connecting line having a length smaller than a distance between the adjacent second electrodes, thereby reducing the length of the connecting line, and thus
- the goal of improving visibility is to improve display quality.
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Abstract
Description
Claims (15)
- 一种触摸屏,包括:设置在基板上且沿第一方向延伸的多条第一电极,所述多条第一电极中的至少一条第一电极包括多个彼此间隔开的第一电极;沿与第一方向交叉的第二方向延伸且与所述多条第一电极同层设置的多条第二电极,所述多条第二电极中的至少一条第二电极包括多个彼此间隔开的第二电极;在所述多条第一电极与所述多条第二电极的至少一个交叉区域中设置的第一连接线、第二连接线、第三连接线和第四连接线;在所述至少一个交叉区域中与所述多条第一电极和所述多条第二电极同层设置的透明的第一连接部和透明的第二连接部,所述第二连接部与第一连接部绝缘;所述第一连接部通过第一连接线和第二连接线分别与相邻的两个所述第一电极电连接,所述第一连接线和第二连接线的长度之和小于相邻的两个所述第一电极之间的距离;所述第二连接部通过第三连接线和第四连接线分别与相邻的两个所述第二电极电连接,所述第三连接线和第四连接线的长度之和小于相邻的两个所述第二电极之间的距离。
- 根据权利要求1所述的触摸屏,其中,所述第一连接部形成为半包围结构,所述第二连接部的至少一部分容纳在所述半包围结构中。
- 根据权利要求2所述的触摸屏,其中,所述半包围结构具有一个开口,通过所述开口第二连接部的至少一部分容纳在所述半包围结构中。
- 根据权利要求3所述的触摸屏,其中,所述第二连接部完全容纳在所述半包围结构中。
- 根据权利要求1-4中任一项所述的触摸屏,其中,至少所述第三连接线和第四连接线中的一个跨过第一连接部与第二电极电连接且与第一连接部电绝缘。
- 根据权利要求2-5中任一项所述的触摸屏,其中,所述半包围结构呈U形、半圆形、椭圆形、弧形或蜿蜒形状。
- 根据权利要求1-6中任一项所述的触摸屏,其中,所述第二连接部为矩形、方形、圆形、椭圆形或棱形。
- 根据权利要求1-7中任一项所述的触摸屏,其中,所述第一连接线和所述第二连接线均为金属线;或者,所述第一连接线和第二连接线中的一个为金属线而其中的另一个为透明导电层;或者,所述第一连接线和所述第二连接线均为透明导电层。
- 根据权利要求8所述的触摸屏,其中,所述第一电极和所述第一连接部为透明导电层;当所述第一连接线为透明导电层时,所述第一连接线与分别连接的所述第一电极、所述第一连接部由相同的材料制成且为一体结构;和/或所述第二连接线为透明导电层时,所述第二连接线与分别连接的所述第一电极、所述第一连接部由相同的材料制成且为一体结构。
- 根据权利要求1-9中任一项所述的触摸屏,其中,所述第三连接线和所述第四连接线均为金属线。
- 根据权利要求1-9中任一项所述的触摸屏,其中,第三连接线和第四连接线中的未跨过第一连接部的一个为透明导电层,并且与相连接的所述第二电极、所述第二连接部由相同的材料制成且为一体结构。
- 根据权利要求8-11中任一项所述的触摸屏,其中,所述透明导电层的材料包括氧化铟锌和氧化铟锡中的一种或它们的任意组合。
- 根据权利要求8-12中任一项所述的触摸屏,其中,所述金属线的材料包括铜、铝、钼其中的一种或者它们的任意组合。
- 根据权利要求1-13中任一项所述的触摸屏,其中,所述第一电极和第二电极中的一个为触摸感应电极而其中的另一个触摸驱动电极。
- 一种显示装置,包括权利要求1-14中任一项所述的触摸屏。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US15/576,282 US10001893B2 (en) | 2016-04-22 | 2017-03-27 | Touch screen and display apparatus |
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Application Number | Priority Date | Filing Date | Title |
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CN201610258393.5A CN105786260B (zh) | 2016-04-22 | 2016-04-22 | 一种触摸屏及显示装置 |
CN201610258393.5 | 2016-04-22 |
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CN105786260B (zh) | 2016-04-22 | 2018-09-11 | 京东方科技集团股份有限公司 | 一种触摸屏及显示装置 |
CN106933412B (zh) * | 2017-02-23 | 2021-03-12 | 深圳市骏达光电股份有限公司 | 触摸屏的制造工艺 |
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