An improved display screen glass panel

Abstract

An improved display screen glass panel comprises a UTG glass substrate, a bevel groove is processed in the inner wall of the front side of the UTG glass substrate, an embedded interference layer is installed on the inner wall of the bevel groove, and a surface hard layer is coated on the surface of the embedded interference layer. Through the cooperation between the UTG glass substrate, the bevel groove, the surface hard layer and the embedded interference layer, the embedded interference layer composed of SiO2 / Si3N4 multilayer film is adjusted by the film layer thickness (50-200nm) to make the reflected light phase interference cancel, the reflectivity is less than or equal to 0.5%, when the light wave is incident on the multilayer film, the reflection occurs on the upper and lower surfaces of SiO2 and Si3N4 respectively, which avoids the problems of high reflectivity of the prior art traditional glass panel in strong light environment, which affects the display clarity, and low hardness of the surface layer (such as the silicon dioxide layer) of the ordinary glass, which is easy to be scratched by keys and other hard objects.

Description

Technical Field

[0001] This utility model relates to the technical field, and in particular to an improved display screen glass panel. Background Technology

[0002] Glass substrate is a basic component of liquid crystal display devices. It is a thin glass sheet produced by float glass with an extremely flat surface. However, traditional glass panels have high reflectivity in strong light environments, which affects display clarity (such as for outdoor use). In addition, the surface layer of ordinary glass (such as the silicon dioxide layer) has low hardness and is easily scratched by hard objects such as keys. At the same time, since the functional layer is directly coated on the outer wall of the glass panel, when subjected to lateral impact, the film is prone to move on the surface of the glass panel, which can cause damage to the connection between the film and the glass panel. Utility Model Content

[0003] This invention aims to solve the problems existing in the prior art by providing an improved display screen glass panel. Through the cooperation between the UTG glass substrate, the beveled groove, the surface hard layer, and the embedded interference layer, the embedded interference layer, composed of SiO2 / Si3N4 multilayer films, achieves phase interference cancellation of reflected light by adjusting the film thickness (50-200nm), resulting in a reflectivity ≤0.5%. When light waves are incident on the multilayer film, reflection occurs on the upper and lower surfaces of SiO2 and Si3N4 respectively. By designing the film thickness (usually 1 / 4 of the wavelength of light in the film), the optical path difference between the two reflected beams satisfies the destructive interference condition: at this time, the amplitudes of the reflected light are opposite, and the reflectivity is significantly reduced after interference. The multilayer film structure (such as SiO2 / Si3N4 / SiO2) can introduce multilevel interference to further suppress reflection in a specific wavelength range. The surface hard layer is made of alternating coatings of silicon oxynitride (SiON) and diamond-like carbon (DLC) films, with a total thickness of 50-80nm and a hardness of 9H (pencil hardness).

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: This improved display screen glass panel includes a UTG glass substrate, the inner wall of the front side of the UTG glass substrate is processed with a beveled groove, the inner wall of the beveled groove is coated with an embedded interference layer, and the front side of the embedded interference layer is coated with a surface hard layer.

[0005] To further improve the design, the outer edges of both the front and rear sides of the outer wall of the UTG glass substrate are chamfered.

[0006] Further improvements include ensuring that the front end face of the UTG glass substrate is flush with the front end face of the surface hard layer.

[0007] Further improvements include ensuring that the rear edge bevel of the surface hard layer and the embedded interference layer fits into the beveled groove.

[0008] The beneficial effects of this invention are as follows: This invention, through the cooperation of the UTG glass substrate, the beveled groove, the surface hard layer, and the embedded interference layer, enables the embedded interference layer, composed of SiO2 / Si3N4 multilayer films, to achieve phase interference cancellation of reflected light by adjusting the film thickness (50-200nm), resulting in a reflectivity ≤0.5%. When light waves are incident on the multilayer film, reflection occurs at the upper and lower surfaces of SiO2 and Si3N4 respectively. By designing the film thickness (typically 1 / 4 of the wavelength of light in the film), the optical path difference between the two reflected beams satisfies the destructive interference condition. The reflected light amplitude is opposite, and the reflectivity is significantly reduced after interference. The multi-level interference enhancement effect is achieved by using multi-layer film structures (such as SiO2 / Si3N4 / SiO2) to introduce multi-level interference, which further suppresses reflection in a specific wavelength range. The surface hard layer is made of alternating coatings of silicon oxynitride (SiON) and diamond-like carbon (DLC) films, with a total thickness of 50-80nm and a hardness of 9H (pencil hardness). This avoids the problems of high reflectivity of traditional glass panels in strong light environments, which affects display clarity, and the low hardness of ordinary glass surface layers (such as silicon dioxide layers), which are easily scratched by hard objects such as keys.

[0009] Since both the surface hard layer and the embedded interference layer are installed inside the beveled groove, the surface of the surface hard layer is flush with the front surface of the UTG glass substrate. During use, the four sides of the UTG glass substrate are enclosed within the frame of the corresponding electronic device (such as a TV, computer monitor, etc.), with only the surface hard layer exposed. Compared to directly coating the outer wall of the glass panel, this invention installs the functional film layer inside the groove of the UTG glass substrate, which makes it easy for the film to move across the glass panel surface when subjected to lateral impact, thus causing damage to the connection between the film and the glass panel. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the separated structure of this utility model;

[0011] Figure 2 This is a schematic diagram of the combined state structure of this utility model;

[0012] Figure 3 This utility model Figure 2 A partial sectional view of the right side of the diagram;

[0013] Figure 4 This utility model Figure 1 A top-view sectional structural diagram.

[0014] Explanation of reference numerals in the attached figures: 1. UTG glass substrate, 2. hard surface layer, 3. chamfered edge, 4. embedded interference layer, 5. beveled groove. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings:

[0016] See attached document Figure 1-4 In this embodiment, a UTG glass substrate 1 is included. The inner wall of the front side of the UTG glass substrate 1 is processed with a beveled groove 5. An embedded interference layer 4 is installed on the inner wall of the beveled groove 5. A surface hard layer 2 is coated on the front side of the surface of the embedded interference layer 4. Edge chamfers 3 are processed on the outer edges of the front and rear sides of the outer wall of the UTG glass substrate 1. The front end face of the UTG glass substrate 1 is flush with the front end face of the surface hard layer 2. The beveled edges of the rear edges of the surface hard layer 2 and the embedded interference layer 4 are attached to the beveled groove 5. If necessary, a silicon oxynitride (SiOxNy) gradient transition layer can be set between multiple layers to reduce interface stress concentration.

[0017] An embedded interference layer 4, composed of SiO2 / Si3N4 multilayer films, is constructed. By adjusting the film thickness (50-200nm), the phase interference of the reflected light is canceled out, resulting in a reflectivity ≤0.5%. When light waves are incident on the multilayer film, they are reflected at the upper and lower surfaces of SiO2 and Si3N4, respectively. By designing the film thickness (usually 1 / 4 of the wavelength of light in the film), the optical path difference between the two reflected beams satisfies the destructive interference condition: at this time, the amplitudes of the reflected light are opposite, and the reflectivity is significantly reduced after interference. The multilayer film structure (such as SiO2 / Si3N4 / SiO2) can introduce multi-level interference to further suppress reflection in a specific wavelength range. The surface hard layer 2 is made of alternating silicon oxynitride (SiON) and diamond-like carbon (DLC) films, with a total thickness of 50-80nm and a hardness of 9H (pencil hardness).

[0018] Working principle:

[0019] When this improved display glass panel is required, the user first places the UTG glass substrate 1 according to... Figure 1 The oblique groove 5 at the center of the front side, as shown in the diagram, can be fabricated using a molten glass injection mold. After cooling, it becomes a UTG glass substrate 1 with the oblique groove 5. Then, an embedded interference layer 4 composed of SiO2 / Si3N4 multilayer films is added. By adjusting the film thickness (50-200nm), the phase interference of the reflected light is canceled out, resulting in a reflectivity ≤0.5%. When light waves are incident on the multilayer films, reflections occur on the upper and lower surfaces of SiO2 and Si3N4 respectively. By designing the film thickness (usually 1 / 4 of the wavelength of light in the film), the optical path difference between the two reflected beams satisfies the destructive interference condition: at this time, the amplitudes of the reflected light are opposite, and the reflectivity is significantly reduced after interference. Multi-level interference enhancement: Multilayer film structures (such as SiO2 / Si3N4 / SiO2) can introduce multi-level interference to further suppress reflection in specific wavelength ranges. For example:

[0020] The first layer of SiO2 (n≈1.46) reduces reflection at the air-film interface;

[0021] The second layer of Si3N4 (n≈2.05) matches the refractive index transition of the silicon substrate (n≈3.9);

[0022] The third layer is a SiO2 protective film that optimizes the overall light transmittance.

[0023] The surface hard layer 2 is coated with alternating layers of silicon oxynitride (SiON) and diamond-like carbon (DLC), with a total thickness of 50-80nm and a hardness of 9H (pencil hardness). This avoids the problems of high reflectivity in traditional glass panels under strong light, which affects display clarity, and the low hardness of ordinary glass surface layers (such as silicon dioxide layers), which are easily scratched by hard objects such as keys. Furthermore, since both the surface hard layer 2 and the embedded interference layer 4 are installed inside the beveled groove 5, the surface of the surface hard layer 2 is flush with the front surface of the UTG glass substrate 1. During use, the four sides of the UTG glass substrate 1 are enclosed within the frame of the corresponding electronic device (such as a TV, computer monitor, etc.), with only the surface hard layer 2 exposed. Compared to directly coating the outer wall of the glass panel, this invention installs the functional film layer inside the groove of the UTG glass substrate 1, which makes it easier for the film to move across the glass panel surface when subjected to lateral impact, thus causing damage to the connection between the film and the glass panel.

[0024] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. An improved display screen glass panel, comprising a UTG glass substrate (1), characterized in that: The UTG glass substrate (1) has a beveled groove (5) on the inner wall of the front side. The inner wall of the beveled groove (5) is covered with an embedded interference layer (4). The front side of the embedded interference layer (4) is coated with a surface hard layer (2).

2. The improved display screen glass panel according to claim 1, characterized in that: The outer edges of the front and rear sides of the outer wall of the UTG glass substrate (1) are all chamfered (3).

3. The improved display screen glass panel according to claim 1, characterized in that: The front end face of the UTG glass substrate (1) is flush with the front end face of the surface hard layer (2).

4. The improved display screen glass panel according to claim 1, characterized in that: The rear edge bevel of the surface hard layer (2) and the embedded interference layer (4) are in contact with the beveled groove (5).

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