Liquid crystal display screen capable of solving micro breakage of metal wiring layer

Abstract

The utility model discloses a liquid crystal display screen capable of solving the problem of slight breakage of a metal wiring layer, which comprises a glass substrate, a first ITO layer, a second ITO layer, a first OC layer, a third ITO layer, the metal wiring layer and a second OC layer, and the first ITO layer is arranged on the upper surface of the glass substrate; the second ITO layer is arranged on the upper surface of the glass substrate and located on one side of the first ITO layer, and a plurality of second via holes are formed in the second ITO layer; the first OC layer is arranged above the first ITO layer; the third ITO layer covers the first OC layer, the first ITO layer and the second ITO layer and extends to the second via holes, and the third ITO layer located above the second ITO layer is provided with a plurality of third via holes; the metal wiring layer is arranged on the upper surface of the third ITO layer above the second ITO layer and extends to the third via hole; and the second OC layer is covered above the third ITO layer and the metal wiring layer.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid crystal display, and more specifically to a liquid crystal display screen capable of solving the problem of micro-breaks in a metal wiring layer. Background Art

[0002] At present, touch screen products have a functional defect of micro-breaks in the metal routing layer. For example, the metal routing layer is slightly disconnected, so the channel cannot be conducted, resulting in poor functionality of the touch screen, especially the micro-breaks. There are unstable functional problems, which may fail before shipment or at the client end. It is also possible that the product may fail during market use. Therefore, it will not only bring serious economic losses, but also cause unnecessary customer complaints. Utility Model Content

[0003] The technical problem to be solved by the utility model is how to solve the problem of poor functionality caused by micro-breaks in the metal wiring layer.

[0004] The technical problem to be solved by the utility model is achieved through the following technical solutions:

[0005] In order to solve the above technical problems, the utility model provides a liquid crystal display screen that solves the problem of micro-breaks in the metal wiring layer, which includes a glass substrate, a first ITO layer, a second ITO layer, a first OC layer, a third ITO layer, a metal wiring layer and a second OC layer, wherein the first ITO layer is arranged on the upper surface of the glass substrate; the second ITO layer is arranged on the upper surface of the glass substrate and is located on one side of the first ITO layer, and a plurality of second vias are arranged on the second ITO layer; the first OC layer is arranged above the first ITO layer; the third ITO layer covers the first OC layer, the first ITO layer and the second ITO layer and extends to the second vias, and the third ITO layer located above the second ITO layer is provided with a plurality of third vias; the metal wiring layer is arranged on the upper surface of the third ITO layer located above the second ITO layer and extends to the third vias; the second OC layer covers the third ITO layer and the metal wiring layer.

[0006] As a preferred implementation of the liquid crystal display screen for solving the problem of micro-breaks in the metal wiring layer provided by the utility model, a plurality of metal vias are arranged on the metal wiring layer, and the second OC layer extends to the metal vias.

[0007] As a preferred implementation of the liquid crystal display screen for solving the problem of micro-breaks in the metal wiring layer provided by the utility model, the second via hole, the third via hole and the metal via hole are respectively staggered.

[0008] As a preferred implementation of the liquid crystal display screen for solving the problem of micro-breaks in the metal wiring layer provided by the utility model, a cover plate is arranged above the glass substrate, and an anti-fingerprint film is arranged on the upper surface of the cover plate.

[0009] As a preferred implementation of the liquid crystal display screen for solving the problem of micro-breaks in the metal wiring layer provided by the utility model, the thickness of the anti-fingerprint film is 1 μm to 10 μm.

[0010] As a preferred implementation of the liquid crystal display screen for solving the problem of micro-breaks in the metal wiring layer provided by the utility model, the upper surface of the cover plate located in the non-visible area is provided with a surface treatment layer for improving the surface roughness.

[0011] As a preferred implementation of the liquid crystal display screen for solving the problem of micro-breaks in the metal wiring layer provided by the utility model, the surface treatment layer is a frosted treatment layer.

[0012] As a preferred implementation of the liquid crystal display screen for solving the problem of micro-breaks in the metal wiring layer provided by the utility model, the surface treatment layer is an etching treatment layer.

[0013] As a preferred implementation of the liquid crystal display screen for solving the problem of micro-breaks in the metal wiring layer provided by the utility model, a glue layer is provided on the lower surface of the anti-fingerprint film located in the non-visible area.

[0014] As a preferred implementation of the liquid crystal display screen for solving the problem of micro-breaks in the metal wiring layer provided by the utility model, the thickness of the glue layer is 0.5 μm.

[0015] The utility model has the following beneficial effects:

[0016] Since the second ITO layer is provided with a second via, and the third ITO layer extends to the second via, that is, the third ITO layer fills the second via, and the third ITO layer is provided with a third via, the metal routing layer extends to the third via, that is, the metal routing layer fills the third via, the through openings can allow the upper metal routing layer to fully contact the second ITO layer and the third ITO layer of the lower layer. Even if the metal routing is broken, the routing of the second ITO layer and the third ITO layer can make up for the micro-break, and the channel will not be unable to conduct, and will not cause poor functionality of the touch screen; at the same time, the openings can also play a venting role to prevent bubbling from causing routing abnormalities, isolate the metal routing from contact with air and water, and are less prone to oxidation and more reliable; the manufacturing process remains unchanged, and the product performance is increased while the price does not increase. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the scheme in the present application, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 A schematic diagram of a stacking structure of a liquid crystal display screen for solving the problem of micro-breaks in a metal wiring layer provided by the utility model.

[0019] Figure 2 A schematic structural diagram of another liquid crystal display screen for solving the problem of micro-breaks in the metal wiring layer provided by the utility model.

[0020] Description of Figure Numbers:

[0021] Glass substrate 1; first ITO layer 2; second ITO layer 3; first OC layer 4; third ITO layer 5; metal wiring layer 6; second OC layer 7; cover plate 8; anti-fingerprint film 9. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] 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 at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0025] The utility model provides a liquid crystal display screen for solving the problem of micro-breaks in a metal wiring layer, comprising a glass substrate, a first ITO layer, a second ITO layer, a first OC layer, a third ITO layer, a metal wiring layer and a second OC layer, wherein the first ITO layer is arranged on the upper surface of the glass substrate; the second ITO layer is arranged on the upper surface of the glass substrate and is located on one side of the first ITO layer, and a plurality of second via holes are arranged on the second ITO layer; the first OC layer is arranged above the first ITO layer; the third ITO layer covers the first OC layer, the first ITO layer and the second ITO layer and extends to the second via holes, and the third ITO layer located above the second ITO layer is provided with a plurality of third via holes; the metal wiring layer is arranged on the upper surface of the third ITO layer located above the second ITO layer and extends to the third via holes; the second OC layer covers the third ITO layer and the metal wiring layer.

[0026] Since the second ITO layer is provided with a second via, and the third ITO layer extends to the second via, that is, the third ITO layer fills the second via, and the third ITO layer is provided with a third via, the metal routing layer extends to the third via, that is, the metal routing layer fills the third via, the through openings can allow the upper metal routing layer to fully contact the second ITO layer and the third ITO layer of the lower layer. Even if the metal routing is broken, the routing of the second ITO layer and the third ITO layer can make up for the micro-break, and the channel will not be unable to conduct, and will not cause poor functionality of the touch screen; at the same time, the openings can also play a venting role to prevent bubbling from causing routing abnormalities, isolate the metal routing from contact with air and water, and are less prone to oxidation and more reliable; the manufacturing process remains unchanged, and the product performance is increased while the price does not increase.

[0027] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings. The present invention is described in detail below in conjunction with the accompanying drawings and embodiments, and 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 with 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 limitations on the present invention.

[0028] See also Figure 1 , a liquid crystal display screen for solving the problem of micro-breaks in the metal wiring layer 6 provided by the utility model, comprising a glass substrate 1, a first ITO layer 2, a second ITO layer 3, a first OC layer 4, a third ITO layer 5, a metal wiring layer 6 and a second OC layer 7, wherein the first ITO layer 2 is arranged on the upper surface of the glass substrate 1; the second ITO layer 3 is arranged on the upper surface of the glass substrate 1, the second ITO layer 3 is located on one side of the first ITO layer 2, and a plurality of second via holes are arranged on the second ITO layer 3; the first OC layer 4 is arranged above the first ITO layer 2; the third ITO layer 5 is provided with a plurality of second via holes; the first OC layer 4 is arranged above the first ITO layer 2; the third ITO layer 5 is provided with a plurality of second via holes; the first OC layer 4 is arranged above the first ITO layer 2; the third ITO layer 5 is provided with a plurality of second via holes; the first OC layer 4 is arranged above the first ITO layer 2; the third ITO layer 5 is provided with a plurality of second via holes; the first OC layer 4 is arranged above the first OC layer 4; the third ITO layer 5 is provided with a plurality of second via holes; the first OC layer 4 is provided ... The TO layer 5 covers the first OC layer 4, the first ITO layer 2 and the second ITO layer 3, and the third ITO layer 5 extends to the second via, that is, the third ITO layer 5 fills the second via, and the third ITO layer 5 located above the second ITO layer 3 is provided with multiple third vias; the metal routing layer 6 is arranged on the upper surface of the third ITO layer 5 located above the second ITO layer 3, and the metal routing layer 6 extends to the third via, that is, the metal routing layer 6 fills the third via; the second OC layer 7 covers the third ITO layer 5 and the metal routing layer 6. Since the second ITO layer 3 is provided with a second via, and the third ITO layer 5 extends to the second via, and the third ITO layer 5 is provided with a third via, the metal wiring layer 6 extends to the third via, the through openings can be used to allow the upper metal wiring layer 6 to fully contact the second ITO layer 3 and the third ITO layer 5 of the lower layer. Even if the metal wiring is broken, the wiring of the second ITO layer 3 and the third ITO layer 5 can make up for the micro-break, and the channel will not be unable to conduct, and will not cause poor functionality of the touch screen. At the same time, the openings can also play a venting role to prevent bubbling from causing wiring abnormalities, isolate the metal wiring from contact with air and water, and are less prone to oxidation and more reliable. The manufacturing process remains unchanged, and the product performance is increased while the price does not increase.

[0029] Furthermore, a plurality of metal vias are provided on the metal routing layer 6, and the second OC layer 7 extends to the metal vias. The openings can exhaust air, prevent bubbling from causing routing abnormalities, isolate the metal routing from contact with air and water, make it less susceptible to oxidation, and enhance reliability.

[0030] Furthermore, the second via hole, the third via hole and the metal via hole are staggered so that the metal wiring layer 6 can fully contact the second ITO layer 3 and the third ITO layer 5, while improving the stability of the structure.

[0031] See also Figure 2As a further optimization of Example 1, in this embodiment, a cover plate 8 is disposed above the glass substrate 1, and an anti-fingerprint film 9 is disposed on the upper surface of the cover plate 8. This prevents fingerprints from remaining on the surface of the cover plate 8 during use, thereby improving the aesthetics of the liquid crystal display and the competitiveness of the product.

[0032] Furthermore, the anti-fingerprint film 9 has a thickness of 1 μm to 10 μm.

[0033] Furthermore, the upper surface of the cover plate 8 in the non-visible area is provided with a surface treatment layer for improving the surface roughness, and the surface treatment layer is a frosted treatment layer or an etching treatment layer. The lower surface of the anti-fingerprint film 9 in the non-visible area is provided with an adhesive layer so that the anti-fingerprint film 9 can be more firmly adhered to the upper surface of the cover plate 8. More preferably, the thickness of the adhesive layer is 0.5 μm.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to perform equivalent replacement of some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.

Claims

1. A liquid crystal display screen for solving the problem of micro-breaks in the metal wiring layer, characterized in that: It includes: Glass substrate; A first ITO layer, which is disposed on the upper surface of the glass substrate; A second ITO layer is disposed on the upper surface of the glass substrate and is located on one side of the first ITO layer, and a plurality of second via holes are disposed on the second ITO layer; A first OC layer, which is disposed above the first ITO layer; a third ITO layer covering the first OC layer, the first ITO layer and the second ITO layer and extending to the second via hole, wherein the third ITO layer located above the second ITO layer is provided with a plurality of third via holes; a metal wiring layer, which is disposed on the upper surface of the third ITO layer above the second ITO layer and extends to the third via hole; The second OC layer covers the third ITO layer and the metal wiring layer.

2. The liquid crystal display screen for solving the problem of micro-breaks in the metal wiring layer according to claim 1, characterized in that: A plurality of metal vias are arranged on the metal wiring layer, and the second OC layer extends to the metal vias.

3. The liquid crystal display screen for solving the problem of micro-breaks in the metal wiring layer according to claim 2, characterized in that: The second via hole, the third via hole and the metal via hole are respectively arranged in a staggered manner.

4. The liquid crystal display screen for solving the problem of micro-breaks in the metal wiring layer according to claim 1, characterized in that: A cover plate is arranged above the glass substrate, and an anti-fingerprint film is arranged on the upper surface of the cover plate.

5. The liquid crystal display screen for solving the problem of micro-breaks in the metal wiring layer according to claim 4, characterized in that: The anti-fingerprint film has a thickness of 1 μm to 10 μm.

6. The liquid crystal display screen for solving the problem of micro-breaks in the metal wiring layer according to claim 4, characterized in that: The upper surface of the cover plate located in the non-visible area is provided with a surface treatment layer for improving the surface roughness.

7. The liquid crystal display screen for solving the problem of micro-breaks in the metal wiring layer according to claim 6, characterized in that: The surface treatment layer is a frosted layer.

8. The liquid crystal display screen for solving the problem of micro-breaks in the metal wiring layer according to claim 6, characterized in that: The surface treatment layer is an etching treatment layer.

9. The liquid crystal display screen for solving the problem of micro-breaks in the metal wiring layer according to claim 3, characterized in that: The lower surface of the anti-fingerprint film located in the non-visible area is provided with an adhesive layer.

10. The liquid crystal display screen for solving the problem of micro-breaks in the metal wiring layer according to claim 9, characterized in that: The thickness of the adhesive layer is 0.5 μm.

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