High-reliability OGS touch screen

Abstract

The utility model discloses a high-reliability OGS (one glass solution) touch screen which comprises a glass cover plate provided with a display area and a peripheral area; the first protection layer is arranged on the glass cover plate and is arranged in the display area and the peripheral area at the same time; the frame ink layer is arranged on the first protection layer and is only arranged in the peripheral area; the second protection layer is arranged on the frame ink layer and is arranged in the display area and the peripheral area at the same time; the OGS sensor layer is arranged on the second protection layer and is arranged in the display area and the peripheral area at the same time; and the third protection layer is arranged on the OGS sensor layer and is arranged in the display area and the peripheral area at the same time. The high-reliability OGS touch screen can play a protection role in isolating moisture for the frame ink layer and the OGS sensor layer at the same time.

Description

Technical Field

[0001] The utility model relates to a touch technology, in particular to an OGS touch screen with high reliability. Background Art

[0002] OGS touch screen is a new type of touch screen technology, the full name is OneGlassSolution, which means integrated glass solution. It is a technology that directly forms ITO conductive film and sensor on the glass cover. A piece of glass plays the dual role of glass cover and touch sensor at the same time. OGS touch screen adopts full bonding technology, which bonds the touch layer, sensor circuit and display glass together, making the touch screen more solid, more transparent, more resistant to pollution, and reducing thickness and weight.

[0003] The outermost layer of the OGS touch screen is a metal wiring layer, which is easily corroded by external water vapor. Therefore, in the prior art, a silicon dioxide layer is often set on the metal wiring layer to protect the metal wiring layer. For example, the Chinese patent with patent number CN201310150311.1 discloses a glass substrate, including a first surface and a second surface; a sensing layer composed of indium tin oxide, arranged on the first surface, including a plurality of first sensing blocks and second sensing blocks that are insulated from each other, and the sensing layer has the same color as the glass substrate; a bridge layer composed of indium tin oxide, adjacent second sensing blocks are electrically connected through the bridge layer, a first insulating layer is arranged between the bridge layer and the first sensing block, and the thickness of the bridge layer is that the color of the bridge layer is the same as the color of the glass substrate; a second insulating layer is arranged on the bridge layer and the second sensing block; a first lead and a second lead are arranged at the edge of the first surface, the first lead is connected to the sensing layer, and the second lead is connected to the bridge layer; and a protective layer composed of silicon dioxide is arranged on the second insulating layer, the bridge layer, the first lead and the second lead.

[0004] However, the material density of the glass cover is relatively low, and external moisture can easily penetrate the glass cover to corrode the frame ink layer and the sensor layer from the other side. Utility Model Content

[0005] In order to solve the above-mentioned deficiencies of the prior art, the utility model provides a high-reliability OGS touch screen, which can simultaneously protect the frame ink layer and the OGS sensor layer from moisture.

[0006] The technical problem to be solved by the utility model is achieved through the following technical solutions:

[0007] A high-reliability OGS touch screen, comprising:

[0008] A glass cover plate, wherein the glass cover plate has a display area and a peripheral area;

[0009] A first protective layer is disposed on the glass cover plate and is disposed on the display area and the peripheral area at the same time;

[0010] A frame ink layer is disposed on the first protective layer and is only disposed in the peripheral area;

[0011] A second protective layer is disposed on the frame ink layer and is disposed in the display area and the peripheral area at the same time;

[0012] An OGS sensor layer is disposed on the second protective layer and is disposed in the display area and the peripheral area;

[0013] The third protection layer is disposed on the OGS sensor layer and is also disposed in the display area and the peripheral area.

[0014] Furthermore, at least one of the first protective layer, the second protective layer and the third protective layer is an inorganic oxide layer, an inorganic nitride layer or an inorganic oxynitride layer.

[0015] Furthermore, at least one of the first protective layer, the second protective layer and the third protective layer is a silicon dioxide layer, a silicon nitride layer or a silicon oxynitride layer.

[0016] Furthermore, at least one of the first protective layer, the second protective layer and the third protective layer has a thickness of not less than 20 μm.

[0017] Furthermore, the OGS sensor layer includes a plurality of touch sensors and a plurality of metal traces, the touch sensors are arranged in the display area, and the metal traces are arranged in the peripheral area; one end of each metal trace is connected to the corresponding touch sensor, and the other end extends to a side edge of the peripheral area.

[0018] Furthermore, the touch sensor includes a jumper, an insulating bridge arranged on the jumper, a first electrode located on both sides of the jumper along a first direction, and a first electrode located on both sides of the jumper along a second direction; both ends of the jumper along the first direction extend from the insulating bridge, the first electrodes located on both sides of the jumper along the first direction are jump-connected through the exposed jumper, and the second electrodes located on both sides of the jumper along the second direction are connected through wiring on the insulating bridge.

[0019] Furthermore, the bridge body is an ITO bridge body or a metal bridge body.

[0020] Furthermore, the frame ink layer is a black ink layer.

[0021] Furthermore, the high-reliability OGS touch screen also includes a flat layer, which is disposed on the third protective layer and is disposed in the display area and the peripheral area at the same time, and a surface of the flat layer facing away from the third protective layer is a flat surface.

[0022] Furthermore, the flat layer is an organic high molecular polymer layer.

[0023] The utility model has the following beneficial effects: the high-reliability OGS touch screen of the utility model adopts three layers of protection layers to simultaneously protect the frame ink layer and the OGS sensor layer from moisture, wherein the first protection layer and the second protection layer are respectively arranged on the two opposite side surfaces of the frame ink layer, and form a sandwich-type protection structure with the frame ink layer, so as to protect the frame ink layer from both sides, and the first protection layer can block the external moisture that passes through the glass cover plate, so as to make up for the deficiency that the glass cover plate is difficult to block the intrusion of external moisture due to its low material density; the second protection layer and the third protection layer are respectively arranged on the two opposite side surfaces of the OGS sensor layer, and also form a sandwich-type protection structure with the OGS sensor layer, so as to protect the OGS sensor layer from both sides, and the third protection layer can block the external moisture from passing through; and the second protection layer separates the frame ink layer and the OGS sensor layer, and adds an additional barrier to block moisture between the frame ink layer and the OGS sensor layer, so as to further improve the reliability of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the stacking structure of the high-reliability OGS touch screen provided by the utility model.

[0025] Figure 2 The present invention is a schematic diagram of the planar structure of a glass cover plate in a high-reliability OGS touch screen.

[0026] Figure 3 The present invention is a schematic structural diagram of an OGS sensor layer in a high-reliability OGS touch screen provided by the present invention.

[0027] Figure 4 This is a schematic diagram of the stacking structure of another high-reliability OGS touch screen provided by the utility model. Implementation

[0028] The present invention is described in detail below in conjunction with the accompanying drawings and embodiments, examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0029] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Embodiment 1

[0032] like Figure 1 and 2 As shown, a high reliability OGS touch screen comprises:

[0033] A glass cover plate 100, wherein the glass cover plate 100 has a display area 101 and a peripheral area 102;

[0034] A first protective layer 200 is disposed on the glass cover plate 100 and is disposed in the display area 101 and the peripheral area 102;

[0035] The frame ink layer 300 is disposed on the first protective layer 200 and is only disposed in the peripheral area 102;

[0036] A second protection layer 400 is disposed on the frame ink layer 300 and is disposed in the display area 101 and the peripheral area 102;

[0037] The OGS sensor layer 500 is disposed on the second protective layer 400 and is disposed in the display area 101 and the peripheral area 102;

[0038] The third protection layer 600 is disposed on the OGS sensor layer 500 and is also disposed in the display area 101 and the peripheral area 102 .

[0039] The high-reliability OGS touch screen of the utility model adopts three layers of protection layers to simultaneously protect the frame ink layer 300 and the OGS sensor layer 500 from moisture, wherein the first protection layer 200 and the second protection layer 400 are respectively arranged on the two opposite sides of the frame ink layer 300, and form a sandwich protection structure with the frame ink layer 300, so as to protect the frame ink layer 300 from both sides, and the first protection layer 200 can block the external moisture that penetrates the glass cover plate 100, so as to make up for the fact that the glass cover plate 100 is difficult to block the external moisture due to its low material density. The second protective layer 400 and the third protective layer 600 are respectively arranged on the two opposite sides of the OGS sensor layer 500, and also form a sandwich-type protection structure with the OGS sensor layer 500, which can protect the OGS sensor layer 500 from both sides, and the third protective layer 600 can block the penetration of external water vapor; the second protective layer 400 separates the frame ink layer 300 and the OGS sensor layer 500, and adds an additional barrier to block water vapor between the frame ink layer 300 and the OGS sensor layer 500, thereby further improving product reliability.

[0040] At least one of the first protective layer 200, the second protective layer 400 and the third protective layer 600 is an inorganic oxide layer, an inorganic nitride layer or an inorganic oxynitride layer. The inorganic oxide layer, the inorganic nitride layer or the inorganic oxynitride layer has a dense molecular atomic arrangement structure, has a good barrier effect on water vapor molecules, and has relatively stable chemical properties. It also has high fire resistance, high temperature resistance, small thermal expansion coefficient, high insulation, corrosion resistance, piezoelectric effect and other properties, which can effectively protect the frame ink layer 300 and the OGS sensor layer 500, thereby enhancing product reliability.

[0041] In this embodiment, at least one of the first protective layer 200 , the second protective layer 400 , and the third protective layer 600 is a silicon dioxide layer, a silicon nitride layer, or a silicon oxynitride layer.

[0042] Preferably, at least one of the first protective layer 200 , the second protective layer 400 and the third protective layer 600 has a thickness of not less than 20 μm.

[0043] like Figure 3As shown, the OGS sensor layer 500 includes a plurality of touch sensors 510 and a plurality of metal traces 520, wherein the touch sensors 510 are arranged in the display area 101, and the metal traces 520 are arranged in the peripheral area 102; one end of each metal trace 520 is connected to the corresponding touch sensor 510, and the other end extends to a side edge of the peripheral area 102.

[0044] The touch sensor 510 includes a bridge 511, an insulating bridge 512 arranged on the bridge 511, first electrodes 513 located on both sides of the bridge 511 along a first direction, and first electrodes 513 located on both sides of the bridge 511 along a second direction; both ends of the bridge 511 along the first direction extend out from the insulating bridge 512, the first electrodes 513 located on both sides of the bridge 511 along the first direction are bridge-connected through the exposed bridge 511, and the second electrodes 514 located on both sides of the bridge 511 along the second direction are connected through wiring on the insulating bridge 512.

[0045] The first direction is perpendicular to the second direction. In this embodiment, the first direction is the transverse direction of the glass cover plate 100 , and the second direction is the longitudinal direction of the glass cover plate 100 .

[0046] In this embodiment, the bridge body 511 may be, but is not limited to, an ITO bridge body 511 or a metal bridge body 511 .

[0047] The frame ink layer 300 may be, but is not limited to, a black ink layer, which is formed on the peripheral area 102 of the glass cover plate 100 by ink silk-screen printing. Embodiment 2

[0048] As an optimization solution of the first embodiment, in this embodiment, if Figure 4 As shown, the high-reliability OGS touch screen further includes a flat layer 700 disposed on the third protective layer 600 and disposed in the display area 101 and the peripheral area 102 , and a surface of the flat layer 700 facing away from the third protective layer 600 is a flat surface.

[0049] Since the first protective layer 200, the frame ink layer 300, the second protective layer 400, the OGS sensor layer 500 and the third protective layer 600 have different coverage areas and different film thicknesses, the surface of the high-reliability OGS touch screen may be uneven, which may affect the subsequent bonding with the display screen or the production of other functional layers. The flat layer 700 is mainly used to fill the surface of the high-reliability OGS touch screen.

[0050] In this embodiment, the planar layer 700 may be, but is not limited to, an organic high molecular polymer layer, preferably epoxy resin or OC insulating glue.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the utility model rather than to limit them. Although the embodiments of the utility model are described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the embodiments of the utility model can still be modified or replaced by equivalents, and these modifications or equivalent replacements cannot cause the modified technical solutions to deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A high reliability OGS touch screen, characterized in that: include: A glass cover plate, wherein the glass cover plate has a display area and a peripheral area; A first protective layer is disposed on the glass cover plate and is disposed on the display area and the peripheral area at the same time; A frame ink layer is disposed on the first protective layer and is only disposed in the peripheral area; A second protective layer is disposed on the frame ink layer and is disposed in the display area and the peripheral area at the same time; An OGS sensor layer is disposed on the second protective layer and is disposed in the display area and the peripheral area; The third protection layer is disposed on the OGS sensor layer and is also disposed in the display area and the peripheral area.

2. The high reliability OGS touch screen according to claim 1, characterized in that: At least one of the first protective layer, the second protective layer and the third protective layer is an inorganic oxide layer, an inorganic nitride layer or an inorganic oxynitride layer.

3. The high reliability OGS touch screen according to claim 2, characterized in that: At least one of the first protective layer, the second protective layer and the third protective layer is a silicon dioxide layer, a silicon nitride layer or a silicon oxynitride layer.

4. The high reliability OGS touch screen according to claim 1, characterized in that: At least one of the first protective layer, the second protective layer, and the third protective layer has a thickness of not less than 20 μm.

5. The high reliability OGS touch screen according to claim 1, characterized in that: The OGS sensor layer includes a plurality of touch sensors and a plurality of metal traces, wherein the touch sensors are arranged in the display area, and the metal traces are arranged in the peripheral area; one end of each metal trace is connected to the corresponding touch sensor, and the other end extends to a side edge of the peripheral area.

6. The high-reliability OGS touch screen according to claim 5, characterized in that: The touch sensor includes a bridge, an insulating bridge arranged on the bridge, a first electrode located on both sides of the bridge along a first direction, and a first electrode located on both sides of the bridge along a second direction; both ends of the bridge along the first direction extend from the insulating bridge, the first electrodes located on both sides of the bridge along the first direction are bridge-connected through the exposed bridge, and the second electrodes located on both sides of the bridge along the second direction are connected through wiring on the insulating bridge.

7. The high-reliability OGS touch screen according to claim 6, characterized in that: The overlapping body is an ITO overlapping body or a metal overlapping body.

8. The high-reliability OGS touch screen according to claim 1, characterized in that: The frame ink layer is a black ink layer.

9. The high-reliability OGS touch screen according to claim 1, characterized in that: The high-reliability OGS touch screen further includes a flat layer, which is disposed on the third protective layer and is disposed in the display area and the peripheral area at the same time, and a surface of the flat layer facing away from the third protective layer is a flat surface.

10. The high-reliability OGS touch screen according to claim 9, characterized in that: The flat layer is an organic high molecular polymer layer.

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