CN105988652B - OGS touch screen key area structure, OGS touch screen and OGS touch screen manufacturing method - Google Patents
OGS touch screen key area structure, OGS touch screen and OGS touch screen manufacturing method Download PDFInfo
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Abstract
The invention discloses an OGS touch screen key area structure, which comprises a substrate and first to third sensing patterns arranged on the same layer of the substrate, wherein the first sensing patterns are arranged in a first direction, the second and third sensing patterns are arranged along a second direction and are arranged on two sides of the first sensing patterns, the first and second and third sensing patterns are insulated, the first direction is different from the second direction, the first sensing patterns are connected to a peripheral circuit through first peripheral wires, the second sensing patterns are communicated with the third sensing patterns through second peripheral wires and are connected to the peripheral circuit so as to jointly receive pressing instructions with the first sensing patterns, and the first and second peripheral wires and the first to third sensing patterns are positioned on the same layer of the OGS touch screen key area structure. The OGS touch screen yield is improved. The invention also provides an OGS touch screen and a manufacturing method of the OGS touch screen.
Description
Technical Field
The invention relates to the field of display devices, in particular to an OGS touch screen key area structure, an OGS touch screen and an OGS touch screen manufacturing method.
Background
The intelligent is the most important development trend of the manufacturing industry in the post-industrial age, the touch screen well solves the man-machine interaction bottleneck problem in the intelligent process, changes the business mode (typified by a smart phone) of the touch screen, and promotes the healthy development of the whole industrial chain, so that the touch screen has a wide prospect and can be widely applied to electronic products such as mobile phones, PDA/multimedia and the like. According to the touch sensing principle, the conventional touch screen is mainly divided into a resistive touch screen, a capacitive touch screen and a surface infrared touch screen. The capacitive touch screen has the advantages of simple structure, high light transmittance, friction resistance, environmental humidity and temperature change resistance, long service life, capability of realizing multi-point touch and the like, and becomes the market center and the market focus of the touch screen.
In order to effectively reduce the cost of the touch module and simultaneously meet the market trend of thinning of the terminal consumer electronic product, the touch industry in recent two years actively starts to develop and reduce the use amount of the ITO film or the ITO glass, and the layout develops a single-layer integrated capacitive touch screen (one glass solution, OGS), an embedded touch (in-cell) or GF film technology. Wherein the OGS is a novel capacitive touch screen. The OGS technology integrates the touch glass and the protective glass, namely, an ITO conductive layer is plated on the inner side of the common protective glass, so that the single glass has the strength and the safety of the protective glass and simultaneously has the touch function.
In traditional OGS touch screen structure, all have bridge construction in the button district for the discontinuous circuit of intercommunication, but because button district pattern exists the fretwork, bridge is taken and is appeared wandering phenomenon very easily when the touch-control in button pattern edge when carrying out bridge design, influences the electrical property of touch screen, thereby causes button function failure, leads to OGS touch yield to reduce.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the OGS touch screen key structure so as to improve the electrical property of the touch screen and solve the problem of poor key function of the touch screen, thereby improving the OGS yield.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides an OGS touch screen key area structure, which comprises a substrate, and a first sensing pattern, a second sensing pattern and a third sensing pattern which are arranged on the same layer of the substrate, wherein the first sensing pattern is arranged in a first direction, the second sensing pattern and the third sensing pattern are arranged along a second direction and are arranged on two sides of the first sensing pattern, the first sensing pattern is insulated from the second sensing pattern, the first direction is different from the second direction, the first sensing pattern is connected to a peripheral circuit through a first peripheral wire, the second sensing pattern is communicated with the third sensing pattern through a second peripheral wire and is connected to the peripheral circuit so as to jointly receive a pressing instruction with the first sensing pattern, and the first peripheral wire, the second peripheral wire and the first sensing pattern are positioned on the same layer of the OGS touch screen key area structure.
The OGS touch screen key area structure further comprises a fourth sensing point and a fifth sensing point, the fourth sensing point and the fifth sensing point are arranged along the second direction and are arranged on two sides of the first sensing pattern, the fourth sensing point and the fifth sensing point are insulated from the first sensing pattern, the fourth sensing point and the fifth sensing point are communicated with each other through a second peripheral lead and are communicated with the second sensing pattern and the third sensing pattern, and the peripheral circuit is connected with the fourth sensing point and the fifth sensing point to receive pressing instructions together with the first sensing pattern.
The OGS touch screen key area structure comprises a substrate, an ink layer arranged on the substrate, an ITO conductive layer arranged on the ink layer and a protective layer arranged on the ITO conductive layer, wherein the first to fifth sensing points and the first and second peripheral wiring are formed by processing the ITO conductive layer.
Wherein the substrate is a glass plate.
The invention further provides an OGS touch screen structure, which comprises a substrate, and a first sensing pattern, a second sensing pattern and a third sensing pattern which are arranged on the same layer of the substrate, wherein the first sensing pattern is arranged in a first direction, the second sensing pattern and the third sensing pattern are arranged along a second direction and are arranged on two sides of the first sensing pattern, the first sensing pattern and the second sensing pattern are insulated, the first direction is different from the second direction, the first sensing pattern is connected to a peripheral circuit through a first peripheral wire, the second sensing pattern and the third sensing pattern are communicated through a second peripheral wire and are connected to the peripheral circuit so as to commonly receive pressing instructions with the first sensing pattern, and the first peripheral wire, the second peripheral wire and the first sensing pattern are positioned on the same layer of the OGS touch screen button area structure.
The substrate comprises a frame area, a visible area and a key area, wherein the visible area is formed by surrounding the frame area, the key area is arranged on the frame area, and the first to third sensing patterns are positioned in the key area.
The first to third sensing patterns are formed by processing the first ITO conductive layer, and the visible area comprises a second ITO conductive layer arranged on the substrate, an insulating layer arranged on the second ITO conductive layer, a third ITO conductive layer arranged on the insulating layer and a protective layer arranged on the third ITO conductive layer, wherein the first ITO conductive layer and the third ITO conductive layer are the same layer.
Wherein the substrate is a glass plate.
The touch screen structure further comprises a fourth sensing point and a fifth sensing point which are arranged in the key area, the fourth sensing point and the fifth sensing point are arranged along the second direction and are arranged on two sides of the first sensing pattern, the fourth sensing point and the fifth sensing point are insulated from the first sensing pattern, the fourth sensing point and the fifth sensing point are communicated with each other through a second peripheral lead and are communicated with the second sensing pattern and the third sensing pattern, and the peripheral circuit is connected with the fourth sensing point and the fifth sensing point and is connected with the second sensing pattern so as to receive a pressing instruction together with the first sensing pattern.
The invention also provides a manufacturing method of the OGS touch screen, which comprises the following steps:
providing a substrate, wherein the substrate comprises a frame area, a visible area surrounded by the frame area and a key area arranged in the frame area;
printing ink on the frame area;
forming a first ITO conductive layer on the visible area, coating a light source on the first ITO conductive layer, and forming an ITO bridge through exposure, development, etching and stripping;
manufacturing an insulating layer on the first ITO conductive layer with the ITO bridge in the visible area;
forming a second ITO conductive layer on the insulating layer, extending to cover the key area, coating a light source on the second ITO conductive layer, and exposing, developing, etching and stripping to enable the visible area to form an electrode array and the key area to form sensing points, wherein transverse electrodes in the electrode array are connected through ITO bridges; the sensing points comprise transverse sensing points and longitudinal sensing points, the longitudinal sensing points are longitudinally communicated and connected to a peripheral circuit through a first peripheral circuit, the transverse sensing points are positioned on two sides of the longitudinal sensing points and insulated from the longitudinal sensing points, and the transverse sensing points are connected to the peripheral circuit through a second peripheral circuit;
and forming a protective film on the second ITO conductive layer.
The OGS touch screen key structure comprises a substrate and first to third sensing patterns arranged on the substrate, wherein the first sensing pattern, the second sensing pattern and the third sensing pattern are all arranged on the same layer of the substrate. The first sensing patterns are disposed in a first direction. The second and third sensing patterns are arranged along the second direction and are arranged on two sides of the first sensing pattern. The first sensing pattern is insulated from the second and third sensing patterns. The first direction is different from the second direction. The first sensing patterns are connected to a peripheral circuit (not shown) through a first peripheral wire. The second sensing pattern is communicated with the third sensing pattern through a second peripheral wire and is connected to the peripheral circuit to receive a pressing command together with the first sensing pattern 11. The first and second peripheral wires and the first to third sensing patterns are located on the same layer of the OGS touch screen button area structure. Therefore, the second and third sensing patterns located at the same layer and disposed along the second direction are only communicated through the second peripheral trace. The bridging structure is not needed any more, so that the problem that the electrical performance of the touch screen is affected due to the fact that the bridging structure is inclined when a key is touched is avoided, poor key function is avoided, and the OGS touch screen yield is improved.
Drawings
In order to more clearly illustrate the technical solutions of the present invention, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained by those skilled in the art without the inventive effort.
Fig. 1 is a schematic diagram of a key area structure of an OGS touch screen according to a first preferred embodiment of the present invention.
Fig. 2 is a cross-sectional view of fig. 1.
Fig. 3 is a schematic diagram of an OGS touch screen structure according to a first preferred embodiment of the present invention.
Fig. 4 is a cross-sectional view of fig. 3.
Fig. 5 is a flowchart of a method for manufacturing an OGS touch screen according to a third preferred embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
It will be understood that when an element or layer is referred to as being "on," "connected to" or "coupled to" another element or layer, it can be directly on, connected or coupled to the other element or layer, or intervening elements or layers may be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" or "directly coupled to" another element or layer, there are no intervening elements or layers present. Like numbers refer to like elements throughout. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the present invention.
Spatially relative terms, such as "under …," "under …," "lower," "over …," "upper," and the like, may be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "under" or "beneath" other elements or features would then be oriented "over" the other elements or features. Thus, the exemplary term "under …" may encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or other orientations) and the spatially relative descriptors used herein interpreted accordingly.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Referring to fig. 1, a first embodiment of the present invention provides an OGS touch screen keypad structure 100. The OGS touch-screen keypad structure 100 includes a substrate 10, a first sensing pattern 11, a second sensing pattern 12 and a third sensing pattern 13 disposed on the substrate 10. The first sensing patterns 11 are disposed in a first direction. The second and third sensing patterns 12 and 13 are disposed along the second direction and on both sides of the first sensing pattern 11. The first sensing pattern 11 is insulated from the second and third sensing patterns 12 and 13. The first direction is different from the second direction. The first sensing patterns 11 are connected to a peripheral circuit (not shown) through first peripheral wires 16. The second sensing pattern 12 is connected to the third sensing pattern 13 through a second peripheral wire 17 and connected to the peripheral circuit, so as to receive a pressing command together with the first sensing pattern 11, wherein the first and second peripheral wires and the first to third sensing patterns are located at the same layer of the OGS touch screen keypad structure.
In the present embodiment, the substrate 10 is a glass plate. The first direction is perpendicular to the second direction. The first direction is a direction parallel to the shorter side of the substrate 10. The second direction is a direction parallel to the longer side of the substrate 10.
In the present embodiment, the first sensing pattern 11, the second sensing pattern 12, and the third sensing pattern 13 are all disposed on the same layer of the substrate 10. The first sensing patterns 11 are disposed in a first direction. The second and third sensing patterns 12 and 13 are disposed along the second direction and on both sides of the first sensing pattern 11. The first sensing pattern 11 is insulated from the second and third sensing patterns 12 and 13. The first direction is different from the second direction. The first sensing patterns 11 are connected to a peripheral circuit (not shown) through first peripheral wires 16. The second sensing patterns 12 communicate with the third sensing patterns 13 through second peripheral wires 17 and are connected to the peripheral circuit to receive a pressing command together with the first sensing patterns 11. The first and second peripheral wires 16 and 17 and the first to third sensing patterns 11-13 are located at the same layer of the OGS touch screen keypad structure 100. Therefore, the second and third sensing patterns 12 and 13 located at the same layer and disposed along the second direction are only connected through the second peripheral trace 17. The bridging structure is not needed any more, so that the problem that the electrical performance of the touch screen is affected due to the fact that the bridging structure is inclined when a key is touched is avoided, poor key function is avoided, and the OGS touch screen yield is improved.
Further, the OGS touch-screen keypad structure 100 further includes a fourth sensing point 14 and a fifth sensing point 15. The fourth and fifth sensing points 14 and 15 are disposed along the second direction and disposed at two sides of the first sensing pattern 11. The fourth and fifth sensing points 14 and 15 are insulated from the first sensing pattern 11. The four sensing points 14 are connected to the fifth sensing point 15 through the second peripheral wire 17, and connected to the second and third sensing patterns 12 and 13, and the peripheral circuit is connected thereto to receive a pressing command together with the first sensing pattern 11.
It should be noted that, when the OGS touch-screen key area is pressed by the outside, downward pressure is generated. The pressure is the pressing instruction. The first to fifth sensing points 11 to 15 generate corresponding electrical signals after receiving the pressing command, and output the peripheral circuits through the first and second peripheral circuits 16 and 17 so that the peripheral circuits respond accordingly.
With continued reference to fig. 2, specifically, the OGS touch-screen keypad structure 100 includes a substrate 10, an ink layer 20 disposed on the substrate 10, an ITO conductive layer 30 disposed on the ink layer 20, and a protective layer 40 disposed on the ITO conductive layer 30. The first to fifth sensing sites 11-15 and the first and second peripheral traces 16 and 17 are formed by processing an ITO conductive layer.
Referring to fig. 3 and 1, a second embodiment of an OGS touch screen structure 300 is provided. The OGS touch screen junction 300 includes a substrate 310, and a first sensing pattern 11, a second sensing pattern 12, and a third sensing pattern 13 disposed on the same layer of the substrate 310. Wherein, the mutual relation and the arrangement mode of the first to the third sensing patterns 11-13 are the same as those in the first scheme of the invention.
The method comprises the following steps: the first sensing patterns 11 are disposed in a first direction. The second and third sensing patterns 12 and 13 are disposed along the second direction and on both sides of the first sensing pattern 11. The first sensing pattern 11 is insulated from the second and third sensing patterns 12 and 13. The first direction is perpendicular to the second direction. The first sensing patterns 11 are connected to a peripheral circuit (not shown) through first peripheral wires 16. The second sensing pattern 12 is connected to the third sensing pattern 13 through a second peripheral wire 17 and connected to the peripheral circuit, so as to receive a pressing command together with the first sensing pattern 11, wherein the first and second peripheral wires and the first to third sensing patterns are located at the same layer of the OGS touch screen keypad structure.
In the present embodiment, the substrate 10 is a glass plate. The first direction is perpendicular to the second direction. The first direction is a direction parallel to the shorter side of the substrate 10. The second direction is a direction parallel to the longer side of the substrate 10.
In the present embodiment, the first sensing pattern 11, the second sensing pattern 12, and the third sensing pattern 13 are all disposed on the same layer of the substrate 10. The first sensing patterns 11 are disposed in a first direction. The second and third sensing patterns 12 and 13 are disposed along the second direction and on both sides of the first sensing pattern 11. The first sensing pattern 11 is insulated from the second and third sensing patterns 12 and 13. The first direction is perpendicular to the second direction. The first sensing patterns 11 are connected to a peripheral circuit (not shown) through first peripheral wires 16. The second sensing patterns 12 communicate with the third sensing patterns 13 through second peripheral wires 17 and are connected to the peripheral circuit to receive a pressing command together with the first sensing patterns 11. The first and second peripheral wires 16 and 17 and the first to third sensing patterns 11-13 are located at the same layer of the OGS touch screen keypad structure 100. Therefore, the second and third sensing patterns 12 and 13 located at the same layer and disposed along the second direction are only connected through the second peripheral trace 17. And the bridging structure is not needed any more, so that the problem that the electrical performance of the OGS touch screen 100 is affected due to the fact that the bridging structure is inclined when a key is touched is avoided, poor key functions are avoided, and the yield of the OGS touch screen 100 is improved.
Further, the substrate 310 includes a frame area 311, a visual area 312, and a key area 313. The visible area 312 is surrounded by the bezel area 311. The key area 313 is disposed on the frame area 311, and the first to third sensing patterns 11 to 13 are located in the key area 313.
Referring to fig. 4, specifically, the key region 313 includes an ink layer 321 disposed on the substrate 310, a first ITO conductive layer 322 disposed on the ink layer 321, and a protective layer 323 disposed on the first ITO conductive layer 322. The first to fifth sensing sites 11-15 and the first and second peripheral traces 16 and 17 are formed by processing a first ITO conductive layer 322.
The visible region 312 includes a second ITO conductive layer 331 disposed on the substrate 310, an insulating layer 332 disposed on the second ITO conductive layer 322, a third ITO conductive layer disposed on the insulating layer 332, and a protective layer disposed on the third ITO conductive layer. The first ITO conductive layer 322 is the same layer as the third ITO conductive layer. The protective layer on the third ITO conductive layer is the same layer as the protective layer 323 disposed on the first ITO conductive layer 322.
The first to third sensing patterns 11-13 of the key region 313 are all on the same layer. The second and third sensing patterns 12 and 13 are only connected through the second peripheral trace 17 located at the same layer. The bridging structure is not needed any more, so that the problem that the electrical performance of the OGS touch screen 300 is affected due to the fact that the bridging structure is inclined when a key is touched is avoided, poor key functions are avoided, and the yield of the OGS touch screen 300 is improved.
Further, the touch screen structure 300 further includes a fourth sensing point 14 and a fifth sensing point 15 disposed in the key area 313. The mutual relationship and arrangement of the fourth and fifth sensing points 14 and 15 are the same as those in the first embodiment of the present invention.
The method comprises the following steps: the fourth and fifth sensing points 14 and 15 are disposed along the second direction and disposed at two sides of the first sensing pattern 11. The fourth and fifth sensing points 14 and 15 are insulated from the first sensing pattern 11. The four sensing points 14 are connected to the fifth sensing point 15 through the second peripheral wire 17, and connected to the second and third sensing patterns 12 and 13, and the peripheral circuit is connected thereto to receive a pressing command together with the first sensing pattern 11.
Note that, when the key area 313 of the OGS touch screen 300 is pressed by the outside, downward pressure is generated. The pressure is the pressing instruction. The first to fifth sensing points 11 to 15 generate corresponding electrical signals after receiving the pressing command, and output the peripheral circuits through the first and second peripheral circuits 16 and 17 so that the peripheral circuits respond accordingly.
Referring to fig. 5, a method for manufacturing an OGS touch screen is further improved according to a preferred embodiment of the present invention. The manufacturing method of the OGS touch screen comprises the following steps:
s101, providing a substrate. The substrate comprises a frame area, a visible area surrounded by the frame area and a key area arranged in the frame area.
S102, printing ink on the frame area.
S103, forming a first ITO conductive layer on the visible area, coating a light source on the first ITO conductive layer, and forming an ITO bridge through exposure, development, etching and stripping.
S104, manufacturing an insulating layer on the first ITO conductive layer with the ITO bridge in the visible area.
S105, forming a second ITO conductive layer on the insulating layer, extending to cover the key region, coating a light source on the second ITO conductive layer, and exposing, developing, etching and stripping to enable the visible region to form an electrode array and the key region to form sensing points, wherein transverse electrodes in the electrode array are connected through ITO bridging; the sensing points comprise transverse sensing points and longitudinal sensing points, the longitudinal sensing points are longitudinally communicated and connected to a peripheral circuit through a first peripheral circuit, the transverse sensing points are positioned on two sides of the longitudinal sensing points and insulated from the longitudinal sensing points, and the transverse sensing points are connected to the peripheral circuit through a second peripheral circuit.
And S106, forming a protective film on the second ITO conductive layer.
In this embodiment, by the method for manufacturing the OGS touch screen, the key area may have only one ITO conductive layer, i.e., the lateral sensing point and the longitudinal sensing point are both located on the same layer. Thus, the lateral sensing points located at the same layer are only communicated through the second peripheral trace. And the bridging structure is not needed any more, so that the problem that the electrical performance of the OGS touch screen is affected due to the fact that the bridging structure is inclined when a key is touched is avoided, the poor key function is avoided, and the OGS touch screen yield is improved.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the invention, such changes and modifications are also intended to be within the scope of the invention.
Claims (10)
1. An OGS touch screen button area structure, its characterized in that: the OGS touch screen key area structure comprises a substrate and a first sensing pattern, a second sensing pattern and a third sensing pattern which are arranged on the same layer of the substrate, wherein the first sensing pattern is arranged in a first direction, the second sensing pattern and the third sensing pattern are arranged along a second direction and are arranged on two sides of the first sensing pattern, the second sensing pattern and the third sensing pattern are insulated, the first direction is different from the second direction, the first sensing pattern is connected to a peripheral circuit through a first peripheral wire, the second sensing pattern and the third sensing pattern are communicated through a second peripheral wire and are connected to the peripheral circuit so as to jointly receive pressing instructions with the first sensing pattern, and the first peripheral wire, the second peripheral wire and the first sensing pattern are positioned on the same layer of the OGS touch screen key area structure.
2. The OGS touch-screen keypad structure of claim 1, further comprising a fourth sensing point and a fifth sensing point, wherein the fourth and fifth sensing points are disposed along the second direction and are disposed on two sides of the first sensing pattern, the fourth and fifth sensing points are insulated from the first sensing pattern, the fourth sensing point is communicated with the fifth sensing point through the second peripheral wire, and is communicated with the second and third sensing patterns, and the peripheral circuit is connected to receive a pressing command together with the first sensing pattern.
3. The OGS touch-screen keypad structure of claim 2, comprising a substrate, an ink layer disposed on the substrate, an ITO conductive layer disposed on the ink layer, and a protective layer disposed on the ITO conductive layer, wherein the first to fifth sensing points and the first and second peripheral traces are formed by processing the ITO conductive layer.
4. The OGS touch-screen keypad structure of claim 1, wherein the substrate is a glass plate.
5. An OGS touch screen structure, characterized in that: the OGS touch screen structure comprises a substrate and a first sensing pattern, a second sensing pattern and a third sensing pattern which are arranged on the same layer of the substrate, wherein the first sensing pattern is arranged in a first direction, the second sensing pattern and the third sensing pattern are arranged along a second direction and are arranged on two sides of the first sensing pattern, the first sensing pattern and the second sensing pattern are insulated, the first direction is different from the second direction, the first sensing pattern is connected to a peripheral circuit through a first peripheral wire, the second sensing pattern is communicated with the third sensing pattern through a second peripheral wire and is connected to the peripheral circuit so as to jointly receive a pressing instruction with the first sensing pattern, and the first peripheral wire, the second peripheral wire and the first sensing pattern are positioned on the same layer of the OGS touch screen button area structure.
6. The OGS touch screen structure of claim 5, wherein the substrate comprises a border area, a visual area and a key area, the visual area is surrounded by the border area, the key area is disposed on the border area, and the first to third sensing patterns are located in the key area.
7. The OGS touch screen structure of claim 5, wherein the key area comprises a first ITO conductive layer disposed on the substrate and a protective layer disposed on the first ITO conductive layer, the first to third sensing patterns are formed by processing the first ITO conductive layer, and the visible area comprises a second ITO conductive layer disposed on the substrate, an insulating layer disposed on the second ITO conductive layer, a third ITO conductive layer disposed on the insulating layer, and a protective layer disposed on the third ITO conductive layer, the first ITO conductive layer and the third ITO conductive layer being the same layer.
8. The OGS touch screen structure of claim 7, wherein the substrate is a glass plate.
9. The OGS touch-screen structure of any one of claims 5-7, further comprising fourth and fifth sensing points disposed in the key region, the fourth and fifth sensing points disposed along the second direction and disposed on opposite sides of the first sensing pattern, the fourth and fifth sensing points insulated from the first sensing pattern, the fourth sensing point and the fifth sensing point being in communication with each other through the second peripheral wire and in communication with the second and third sensing patterns and the peripheral circuit being coupled to receive a pressing command in conjunction with the first sensing pattern.
10. A manufacturing method of an OGS touch screen comprises the following steps:
providing a substrate, wherein the substrate comprises a frame area, a visible area surrounded by the frame area and a key area arranged in the frame area;
printing ink on the frame area;
forming a first ITO conductive layer on the visible area, coating a light source on the first ITO conductive layer, and forming an ITO bridge through exposure, development, etching and stripping;
manufacturing an insulating layer on the first ITO conductive layer with the ITO bridge in the visible area;
forming a second ITO conductive layer on the insulating layer, extending to cover the key area, coating a light source on the second ITO conductive layer, and exposing, developing, etching and stripping to enable the visible area to form an electrode array and the key area to form sensing points, wherein transverse electrodes in the electrode array are connected through ITO bridges; the sensing points comprise transverse sensing points and longitudinal sensing points, the longitudinal sensing points are longitudinally communicated and connected to a peripheral circuit through a first peripheral circuit, the transverse sensing points are positioned on two sides of the longitudinal sensing points and insulated from the longitudinal sensing points, and the transverse sensing points are connected to the peripheral circuit through a second peripheral circuit;
and forming a protective film on the second ITO conductive layer.
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| CN103176641A (en) * | 2011-12-25 | 2013-06-26 | 宸鸿科技(厦门)有限公司 | Touch panel and manufacturing method thereof |
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| JP5432193B2 (en) * | 2011-01-18 | 2014-03-05 | 株式会社ジャパンディスプレイ | Display device |
| CN204808286U (en) * | 2015-02-26 | 2015-11-25 | 南昌欧菲光科技有限公司 | Bonding region structure, OGS touch -sensitive screen are pressed to OGS touch -sensitive screen |
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| CN1838151A (en) * | 2005-03-22 | 2006-09-27 | 义隆电子股份有限公司 | Single-layer printed circuit board structure touch panel |
| CN103176641A (en) * | 2011-12-25 | 2013-06-26 | 宸鸿科技(厦门)有限公司 | Touch panel and manufacturing method thereof |
| CN203366272U (en) * | 2013-06-06 | 2013-12-25 | 信利光电股份有限公司 | OGS touch screen |
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| CN105988652A (en) | 2016-10-05 |
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