Glass cover and display

By setting the coating area and the exposed area on the glass cover plate, the characteristics of the AF film are used to neutralize the positive and negative charges of the glass cover plate when friction are solved, and the problem of negative charges on the surface affecting the TFT device during friction is solved, which reduces the interference of friction voltage on the TFT device and improves the phenomenon of electrical poor performance.

CN115421325BActive Publication Date: 2025-08-08WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202210926675.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-08-03
Publication Date
2025-08-08
Estimated Expiration
2042-08-03

AI Technical Summary

Technical Problem

In the prior art, the surface of the glass cover plate forms a negative charge when it rubs, affecting the TFT device, resulting in poor electrical properties such as the o-cut hole shiny, the FOD&IR hole shiny, and the edge of the display area is shiny.

Method used

The anti-fingerprint film (AF film) is applied to the surface of the glass substrate, and an exposed area is set to expose the glass substrate. The characteristics of the AF film that easily obtains electrons and the glass substrate are volatile for electrons, neutralizes positive and negative charges, reduces friction voltage, and reduces interference to the TFT device.

Benefits of technology

By setting the coating area and the exposed area on the glass cover plate, the characteristics of the AF film are used to neutralize the positive and negative charges of the glass cover plate when it is rubbed, reduce the friction voltage, reduce the impact of the electric field on the TFT device, and improve the problem of poor electrical properties.

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Abstract

Embodiments of the present invention disclose a glass cover plate and a display screen. The glass cover plate includes a glass substrate having a plurality of spaced-apart coated areas and exposed areas; and a protective layer disposed on the coated areas of the glass substrate and exposing the exposed areas. The protective layer is an anti-fingerprint film. By coating the protective layer on the coated areas of the glass substrate, while exposing the glass substrate in the exposed areas, and spacing the coated and exposed areas apart, the protective layer utilizes an AF film. By utilizing the AF film's ability to readily acquire electrons and the glass substrate's ability to readily lose electrons, the positive and negative charges of the glass cover plate are neutralized during friction, thereby reducing friction voltage, minimizing interference with the display's TFT devices, and alleviating the effects of electric fields on the TFTs.
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Description

Technical Field

[0001] The present invention relates to the field of display panels, and in particular to a glass cover plate and a display screen. Background Art

[0002] Conventional display panels typically have an AF coating on the glass cover, which imparts oil and water repellency and offers anti-fingerprint properties. However, under conditions such as film tearing or friction, the AF layer on the glass surface is highly susceptible to static electricity. Fluorine, the strongest known non-metallic element, possesses extremely high electronegativity. Fluorine also has an extremely small atomic radius and a strong ability to capture electrons. Therefore, under conditions such as film tearing or friction, the AF layer on the glass surface is highly susceptible to static electricity. Friction on the glass cover creates negative charges, which form a negative electric field on the surface, impacting the TFT device and causing a threshold voltage shift (positive or negative), resulting in electrical failure. Three main manifestations of this abnormality are: shiny o-cut apertures, shiny FOD & IR apertures, and shiny edges of the display area (AA area).

[0003] In view of this, it is necessary to develop a new type of glass cover plate to solve the problem in the prior art that negative charges are formed on the surface of the glass cover plate when rubbed, affecting the TFT device. Summary of the Invention

[0004] An embodiment of the present invention provides a glass cover plate, which is used to solve the problem in the prior art that negative charges are formed on the surface of the glass cover plate when rubbed, thereby affecting TFT devices.

[0005] In order to solve the above technical problems, the embodiments of the present invention disclose the following technical solutions:

[0006] On the one hand, the present application provides a glass cover, comprising a glass substrate having a plurality of spaced-apart coated areas and exposed areas; and a protective layer disposed on the coated areas of the glass substrate and exposing the exposed areas of the glass substrate.

[0007] In addition to or as an alternative to one or more of the features disclosed above, the bare areas are respectively separated from one another by one or more of the coated areas.

[0008] In addition to or as an alternative to one or more features disclosed above, the ratio of the total area of the exposed areas to the total area of the coated areas is in a range of 0.8 to 1.2.

[0009] In addition to or as an alternative to one or more of the features disclosed above, the exposed area is in a grid shape.

[0010] In addition to one or more features disclosed above, or as an alternative, the shape of the exposed area is one or more of square, rectangular, circular, hexagonal, elliptical, and tetrahedral.

[0011] In addition to or as an alternative to one or more features disclosed above, the side length of the exposed area is in the range of 10-15 μm; the vertical distance between any two adjacent exposed areas is in the range of 10-15 μm.

[0012] In addition to or as an alternative to one or more of the features disclosed above, the plurality of exposed areas are all of the same shape and size.

[0013] In addition to or as an alternative to one or more of the features disclosed above, the vertical distances between any two adjacent exposed areas are equal.

[0014] In addition to or as an alternative to one or more of the features disclosed above, the protective layer is an anti-fingerprint film (AF film).

[0015] In addition to or as an alternative to one or more features disclosed above, the protective layer has a thickness in the range of 0.1 nm to 1000 nm. Further, the thickness can be controlled in the range of 2 nm to 500 nm.

[0016] In addition to or as an alternative to one or more of the features disclosed above, the anti-fingerprint film is a coating or plating applied on the glass substrate; the material of the glass substrate is any one or more of soda-lime glass, borosilicate glass, lead glass or aluminosilicate glass.

[0017] In addition to or as an alternative to one or more of the features disclosed above, the AF film is prepared by vacuum evaporation.

[0018] In addition to or as an alternative to one or more features disclosed above, the glass substrate has a visible light transmittance in the range of 85%-96%, and further, the visible light transmittance is in the range of 91%-93%.

[0019] By partially coating a protective layer on the surface of the glass substrate and partially exposing the glass substrate, the protective layer uses an AF film. By taking advantage of the fact that the AF film easily acquires electrons and the glass substrate easily loses electrons, the positive and negative charges of the glass cover are neutralized during friction, thereby reducing the friction voltage, reducing interference with the TFT devices of the display screen, and reducing the impact of the electric field on the TFT.

[0020] In addition to or as an alternative to one or more features disclosed above, the glass cover has a planar area and a curved area located on at least one side of the planar area; the coated area is distributed in the planar area and the curved area; and the exposed area is distributed at least in the planar area.

[0021] In addition to or as an alternative to one or more features disclosed above, the exposed areas are evenly distributed in the planar area, and the curved area is entirely covered by the protective layer.

[0022] In addition to or as an alternative to one or more features disclosed above, in the planar region, a ratio of a total area of the exposed region to a total area of the coated region is in a range of 0.8 to 1.2.

[0023] On the other hand, a display screen is further provided, comprising a display module and the glass cover plate of the present invention disposed on the display module.

[0024] One of the above technical solutions has the following advantages or beneficial effects: by coating a protective layer on the coated area of the glass substrate, exposing the glass substrate in the bare area, and the coated area and the bare area are spaced apart from each other, the protective layer adopts an AF film, and the characteristics of the AF film that it is easy to obtain electrons and the glass substrate that is easy to lose electrons are utilized, so that the positive and negative charges of the glass cover plate are neutralized during friction, thereby reducing the friction voltage, reducing the interference with the TFT device of the display screen, and reducing the influence of the electric field on the TFT. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The technical solutions and other beneficial effects of the present invention will be made apparent by describing in detail the specific embodiments of the present invention in conjunction with the accompanying drawings.

[0026] Figure 1 A schematic cross-sectional view of a glass cover plate provided in an embodiment of the present invention;

[0027] Figure 2 A schematic top view of the glass cover provided in an embodiment of the present invention;

[0028] Figure 3 This is a schematic top view of the structure of the glass cover plate during friction provided by an embodiment of the present invention.

[0029] Reference numerals:

[0030] Glass cover-100; plane area-101;

[0031] curved surface area-102; glass substrate-10;

[0032] Protective layer-20; coating area-110;

[0033] Bare area -120; positive charge -11;

[0034] Negative charge -12. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. 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" and the like indicating directions or positional relationships are based on the directions 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 device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0036] See also Figure 1-Figure 3 An embodiment of the present invention provides a glass cover plate 100 . The glass cover plate 100 has a flat area 101 and a curved area 102 . The glass cover plate 100 includes a glass substrate 10 and a protective layer 20 .

[0037] The material of the glass substrate 10 is any one or more of soda-lime glass, borosilicate glass, lead glass or aluminosilicate glass.

[0038] The visible light transmittance of the glass substrate 10 is in the range of 85%-96%, and further, the visible light transmittance is in the range of 91%-93%.

[0039] The glass substrate 10 has multiple spaced-apart coated areas 110 and bare areas 120. The multiple coated areas 110 can refer to multiple connected coated areas 110 or multiple independent coated areas 110. Of course, the multiple bare areas 120 can refer to multiple connected bare areas 120 or multiple independent bare areas 120. In this embodiment, the bare areas 120 are separated from each other by the coated areas 110. In other embodiments, the coated areas 110 can also be separated from each other by the bare areas 120. More specifically, in this embodiment, multiple connected coated areas 110 surround a single bare area 120. In other embodiments, a single bare area 120 can be surrounded by multiple independent coated areas 110. Alternatively, a single coated area 110 can be surrounded by multiple connected bare areas 120, or a single coated area 110 can be surrounded by multiple independent bare areas 120.

[0040] In this embodiment, the exposed area 120 is in a square shape. In other embodiments, the exposed area 120 may be in one or more of the following shapes: a rectangle, a circle, a hexagon, an ellipse, or a tetrahedron, which is not limited here.

[0041] In this embodiment, the exposed area 120 is in a grid shape. In other embodiments, as long as the exposed area 120 and the coating area 110 are spaced apart, no limitation is made here.

[0042] A protective layer 20 is disposed on the coated area 110 of the glass substrate 10 and exposes the bare area 120 of the glass substrate 10. The protective layer 20 is an anti-fingerprint film (AF film). The thickness of the protective layer 20 ranges from 0.1 nm to 1000 nm, and can further be controlled within the range of 2 nm to 500 nm.

[0043] In this embodiment, the anti-fingerprint film is an AF coating or plating film, and the material of the anti-fingerprint film can be 980AF-3 material.

[0044] AF (Anti-fingerprint) is a film that uses a nano-chemical material applied to the outer surface of the glass, inspired by the principle of the lotus leaf. This minimizes surface tension and reduces the contact area between dust and the glass by 90%, resulting in strong hydrophobicity, oil resistance, and fingerprint resistance, ensuring the display glass panel maintains a smooth and bright appearance over time. It easily removes dirt, fingerprints, and oil stains, while also providing a smoother, more comfortable surface. It is suitable for all display glass cover panels on touch screens. The anti-fingerprint film coating is applied to the front of the glass.

[0045] In this embodiment, the AF film is formed using vacuum evaporation. Specifically, pellets of the AF film material are heated, causing AF molecules to be deposited onto the glass panel. The AF film material is composed of perfluoropolyether siloxane with a molecular weight of 300-8000 g / mol. In other embodiments, the AF film can also be formed using spray coating.

[0046] During friction, due to the characteristics of the AF film being easy to gain electrons and the glass substrate 10 being easy to lose electrons, the surface of the glass substrate 10 in the exposed area 120 has a positive charge 11, and the protective layer 20 in the coating area 110 has a negative charge 12. The positive and negative charges are neutralized, reducing the friction voltage.

[0047] By coating the protective layer 20 on the coating area 110 of the glass substrate 10, the bare area 120 exposes the glass substrate 10, and the coating area 110 and the bare area 120 are spaced apart from each other, and the protective layer 20 uses an AF film, taking advantage of the characteristics of the AF film that easily acquires electrons and the glass substrate 10 that easily loses electrons, the positive and negative charges of the glass cover plate 100 are neutralized during friction, thereby reducing the friction voltage, reducing interference with the TFT devices of the display screen, and reducing the influence of the electric field on the TFT.

[0048] In this embodiment, the exposed areas 120 have the same shape and size, and the side length B of the exposed areas 120 ranges from 10 to 15 μm. The vertical distance L between any two adjacent exposed areas 120 is equal, and the vertical distance L between any two adjacent exposed areas 120 ranges from 10 to 15 μm.

[0049] The curved area 102 of the glass cover 100 is located on both sides of the flat area 101. In this embodiment, the flat area 101 is distributed with exposed areas 120 and coated areas 110, and the curved area 102 is completely covered by the protective layer 20. In other embodiments, the curved area 102 may also be distributed with exposed areas 120.

[0050] The exposed areas 120 and the coated areas 110 are evenly distributed in the plane area 101 . In the plane area 101 , the ratio of the total area of the exposed areas 120 to the total area of the coated areas 110 is in a range of 0.8 to 1.2.

[0051] A display screen is also provided, including a display module and a glass cover plate 100 according to an embodiment of the present application disposed on the display module.

[0052] It should be noted that the display screen includes, but is not limited to, a liquid crystal display screen or an OLED (Organic Light-Emitting Diode) display screen. The display screen uses components such as a glass cover 100 and a housing to encapsulate the display module and other functional components, and realizes various displays based on control signals.

[0053] By coating the protective layer 20 on the coating area 110 of the glass substrate 10, the bare area 120 exposes the glass substrate 10, and the coating area 110 and the bare area 120 are spaced apart from each other, and the protective layer 20 uses an AF film, taking advantage of the characteristics of the AF film that easily acquires electrons and the glass substrate 10 that easily loses electrons, the positive and negative charges of the glass cover plate 100 are neutralized during friction, thereby reducing the friction voltage, reducing interference with the TFT devices of the display screen, and reducing the influence of the electric field on the TFT.

[0054] In the prior art, an antistatic layer is usually provided between the glass substrate 10 and the protective layer 20 for antistatic purposes. However, the present application achieves the antistatic purpose by patterning the AF film, thereby saving costs.

[0055] The glass cover and display provided by the embodiments of the present invention are described in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only intended to help understand the technical solutions and core concepts of the present invention. Those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A glass cover plate, characterized in that: include A glass substrate having a plurality of spaced-apart coated areas and exposed areas, wherein the glass substrate is made of any one or more of soda-lime glass, borosilicate glass, lead glass, or aluminosilicate glass, and the glass substrate is electron-losable; A protective layer is provided on the coated area of the glass substrate and exposes the bare area of the glass substrate. The protective layer is an anti-fingerprint film, which is a coating or plating layer applied on the glass substrate. The protective layer is easy to obtain electrons, and the positive and negative charges of the glass substrate and the protective layer are neutralized when rubbed.

2. The glass cover plate according to claim 1, wherein: The ratio of the total area of the exposed area to the total area of the coated area is in the range of 0.8 to 1.

2.

3. The glass cover plate according to claim 1, wherein: The exposed area is in a grid shape.

4. The glass cover plate according to claim 1, wherein: The exposed area has a shape of one or more of a square, a rectangle, a circle, a hexagon, an ellipse, and a tetrahedron.

5. The glass cover plate according to claim 1, wherein: The side length of the exposed area is in the range of 10 to 15 μm; the vertical distance between any two adjacent exposed areas is in the range of 10 to 15 μm.

6. The glass cover plate according to claim 1, wherein: The glass cover plate has a flat area and a curved area located at at least one side of the flat area; the coated area is distributed in the flat area and the curved area; and the exposed area is distributed at least in the flat area.

7. The glass cover plate according to claim 6, wherein: The exposed areas are evenly distributed in the plane area, and the curved area is completely covered by the protective layer.

8. A display screen, characterized in that: The device comprises a display module and a glass cover plate according to any one of claims 1 to 7 arranged on the display module.

Citation Information

Patent Citations

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