A wood grain display screen and display device
By setting a benzotriazole layer on the glass substrate to absorb ultraviolet rays, and combining it with boron trioxide and lead oxide layers, the problem of easy aging of wood grain film is solved, achieving anti-fading and enhancing the aesthetics and functionality of the display screen.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TRULY OPTO ELECTRONICS
- Filing Date
- 2025-05-23
- Publication Date
- 2026-06-16
AI Technical Summary
Existing wood grain films are prone to aging during use, resulting in color fading, short service life, and reduced aesthetics.
A benzotriazole layer is placed on the glass substrate to absorb ultraviolet rays, and combined with boron trioxide and lead oxide layers, the optical performance and protection function are enhanced. The wood grain film layer is provided with light-transmitting holes to realize the switching between the on-screen display and the off-screen wood grain pattern.
It extends the lifespan of the wood grain film, improves the aesthetics and functionality of the display, enhances touch and fingerprint recognition capabilities, and ensures the display maintains its aesthetic appeal in both on and off states.
Smart Images
Figure CN224366505U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of display screens, and in particular to a fade-resistant wood grain display screen and display device. Background Technology
[0002] When used as an in-vehicle display screen, wood grain film is more widely used in automotive interiors than traditional integrated black display screen covers, prioritizing aesthetics. Wood grain film offers a convenient decorative solution with a wood-like texture; the displayed content is visible when the screen is on, and it enhances the aesthetics of the vehicle's interior when the screen is off.
[0003] However, wood grain film is prone to aging, causing the color to fade and the film to lose its aesthetic appeal after a short period of use. Utility Model Content
[0004] In order to solve the problems existing in the prior art, this utility model provides a fade-resistant wood grain display screen and display device.
[0005] On one hand, the present invention provides a fade-resistant wood grain display screen, which adopts the following technical solution, including: a glass substrate, covering the surface of the display device for protecting the display device, comprising two planes, one plane facing the display device and the other plane facing the external environment; a wood grain film layer, disposed on the surface of the glass substrate and located on the side of the glass substrate facing the display device; and a benzotriazole layer, disposed on the surface of the glass substrate and located on the side of the glass substrate facing the external environment, for absorbing ultraviolet rays from the external environment.
[0006] Optionally, it also includes: a boron trioxide layer disposed on the surface of the benzotriazole layer and located on the side away from the glass substrate, having optical refractive properties.
[0007] Optionally, it also includes: a lead oxide layer disposed on the surface of the boron trioxide layer and located on the side away from the boron trioxide layer, and having optical transmittance.
[0008] Optionally, the glass substrate includes a visible area and a non-visible area, the non-visible area being disposed around the edge of the visible area; the visible area is used to display image content, and the non-visible area is used to cover the circuitry in the display device.
[0009] Optionally, it also includes: a plurality of light-transmitting holes disposed on the wood grain film layer and located at positions corresponding to the visible area of the wood grain film layer.
[0010] Optionally, the spacing between the plurality of light-transmitting holes is set to 1μm to 50μm.
[0011] Optionally, the thickness of the wood grain film layer is 0.03 mm to 0.1 mm.
[0012] Optionally, the thickness of the benzotriazole layer is 5 nm to 10 nm.
[0013] Optionally, the thickness of the boron trioxide layer is 150 nm to 200 nm; the thickness of the lead oxide layer is 30 nm to 80 nm.
[0014] On the other hand, the present invention provides a display device including the aforementioned fade-resistant wood grain display screen.
[0015] Any of the above-described technical solutions of this utility model has at least some of the following beneficial effects:
[0016] 1. By setting a benzotriazole layer to absorb ultraviolet rays, the impact of ultraviolet rays on the wood grain film layer is reduced, the time for the color of the wood grain film layer to fade is delayed, and the lifespan of the display screen's aesthetics is increased;
[0017] 2. The wood grain film layer is set under the glass substrate. The display content in the display device is viewed by people through the wood grain film layer. When the screen is off and no light passes through the wood grain film layer, the pattern of the wood grain film is displayed, which effectively improves the overall aesthetics of the display screen.
[0018] 3. By placing a lead oxide layer on the surface of a boron trioxide layer, the transmittance of infrared light waves is increased, which can effectively realize the touch function and fingerprint recognition function of the display screen;
[0019] 4. The diameter of the light-transmitting aperture is between 20μm and 50μm, which effectively allows light to pass through. The spacing between the light-transmitting apertures is between 1μm and 50μm. A smaller spacing allows for the placement of more light-transmitting apertures, thereby enhancing light transmittance and making the image content more complete. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the layer structure of a fade-resistant wood grain display screen according to this utility model;
[0021] Figure 2 This is a schematic diagram of the visible area of a fade-resistant wood grain display screen according to this utility model;
[0022] Figure 3 This is a schematic diagram of the light-transmitting hole of a wood grain display screen that is resistant to fading.
[0023] Explanation of reference numerals in the attached figures: 1. Glass substrate; 11. Wood grain film layer; 12. Benzotriazole layer; 13. Boron trioxide layer; 14. Lead oxide layer;
[0024] 2. Visible area; 3. Non-visible area; 4. Light-transmitting hole. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0027] Example 1
[0028] This utility model discloses a fade-resistant wood grain display screen. (See reference...) Figure 1 The display includes: a glass substrate 1, which covers the surface of the display device and is used to protect the display device, and includes two planes, one facing the display device and the other facing the external environment; a wood grain film layer 11, which is disposed on the surface of the glass substrate 1 and is located on the side of the glass substrate 1 facing the display device; and a benzotriazole layer 12, which is disposed on the surface of the glass substrate 1 and is located on the side of the glass substrate 1 facing the external environment, and is used to absorb ultraviolet rays from the external environment.
[0029] Based on the above structure, the glass substrate 1 has high light transmittance and is a protective transparent glass. With a thickness between 0.7 mm and 3 mm, the glass substrate 1 has a bending strength exceeding 700 MPa and a hardness of 6-7, effectively protecting the electronic components inside the display device. Using the glass substrate 1 as the foundation of the entire display screen structure provides transparency and basic physical support. Furthermore, the glass substrate 1 has advantages such as high transparency, good chemical stability, and the ability to withstand certain mechanical stresses.
[0030] Optionally, the wood grain film layer 11 is disposed below the glass substrate 1. The display content in the display device is viewed by people through the wood grain film layer 11. When the screen is off and no light passes through the wood grain film layer 11, the pattern of the wood grain film is displayed, which effectively improves the overall aesthetics of the display screen.
[0031] Optionally, a benzotriazole layer 12 is disposed above the glass substrate 1. The conjugated system in the benzotriazole molecule absorbs ultraviolet energy through π to π* transitions and releases it in the form of heat energy. After absorbing ultraviolet light, the amount of ultraviolet light passing through the glass substrate 1 to reach the wood grain film layer 11 is reduced, which effectively reduces the aging rate of the wood grain film layer 11 and extends the service life of the wood grain film layer 11.
[0032] Optionally, by setting a benzotriazole layer 12 to absorb ultraviolet rays, the impact of ultraviolet rays on the wood grain film layer 11 can be reduced, the time for the color of the wood grain film layer 11 to fade can be delayed, and the lifespan of the display screen's aesthetics can be increased.
[0033] In a preferred embodiment, the embodiment further includes a boron trioxide layer 13, which is disposed on the surface of the benzotriazole layer 12 and located on the side away from the glass substrate 1, and has optical refractive properties.
[0034] Based on the above structure, the boron trioxide layer 13 possesses optical refractive properties. When external light shines on the display screen, the boron trioxide layer 13 refracts part of the light source, preventing viewers from not being able to see the screen content clearly. Boron trioxide (B2O3) is an inorganic oxide with a refractive index of approximately 1.8 to 2.0 in the visible light band, significantly higher than the refractive index of 1.5 of the glass substrate 1. Simultaneously, the boron trioxide layer 13 exhibits resistance to acid and alkali corrosion and a hardness of 5-6, preventing scratches and abrasions during daily wiping.
[0035] Optionally, a boron trioxide layer 13 is disposed above the benzotriazole layer 12. When ambient light shines on the display screen, the boron trioxide layer 13 first refracts part of the light source, thereby reducing the amount of light and ultraviolet light entering the benzotriazole layer 12. The unrefracted light source enters the benzotriazole layer 12, and the ultraviolet light is absorbed, effectively protecting the wood grain film layer 11 under the glass substrate 1.
[0036] In a preferred embodiment, the embodiment further includes a lead oxide layer 14 disposed on the surface of the boron trioxide layer 13 and located on the side away from the boron trioxide layer 13, and having optical transmittance.
[0037] Based on the above structure, the lead oxide layer 14 is disposed above the boron trioxide layer 13 and has optical transmittance, allowing the displayed content in the display screen to more easily penetrate the lead oxide layer 14 for viewing. At the same time, the lead oxide layer 14 has strong wear resistance, effectively protecting the display screen from wear.
[0038] Optionally, the lead oxide layer 14 can achieve a light transmittance of over 80% in the near-infrared band (800-2500nm). Using the lead oxide layer 14 in displays with infrared fingerprint recognition or touch functionality allows infrared waves to be effectively transmitted to the touch point, enhancing the touch experience. By placing the lead oxide layer 14 on the surface of the boron trioxide layer 13, the light transmittance of infrared light waves is increased, effectively enabling the touch and fingerprint recognition functions of the display.
[0039] Reference Figure 2 In this preferred embodiment, the glass substrate 1 includes a visible area 2 and a non-visible area 3, with the non-visible area 3 arranged around the edge of the visible area 2; the visible area 2 is used to display image content, and the non-visible area 3 is used to cover the circuitry in the display device.
[0040] Based on the above structure, the display device contains numerous circuits connected to the display screen. The glass substrate 1 covering the display screen is transparent. To ensure the circuits are properly covered and to maintain the aesthetic appearance of the display screen's outer surface, a non-visible area 3 is created on the glass substrate 1. The circuits are placed in corresponding positions within this non-visible area 3. A silkscreen ink layer is printed in the non-visible area 3, using black ink to cover the circuits, effectively making the display screen's outer surface aesthetically pleasing and concealing the messy circuits. The visible area 2 is the area displaying the image content, and this area is transparent.
[0041] Reference Figure 3 In this preferred embodiment, it further includes: a plurality of light-transmitting holes 4, which are disposed on the wood grain film layer 11 and located at positions corresponding to the visible area 2 of the wood grain film layer 11.
[0042] Based on the above structure, the wood grain film layer 11 displays a wood grain pattern that can be seen through the visible area 2, making the display screen look more beautiful. At the same time, the wood grain film layer 11 needs to be light-transmitting, that is, the light emitted by the image display element in the display device can penetrate the wood grain film layer 11 and be reflected on the glass substrate 1, so that people can observe the image content.
[0043] Specifically, tiny light-transmitting holes 4 are provided on the wood grain film layer 11. The light emitted from the display device passes through the light-transmitting holes 4 and reaches the visible area 2 of the glass substrate 1. Since the light-transmitting holes 4 are small, they cannot be distinguished by the naked eye and cannot be seen by personnel.
[0044] Optionally, when the display device is displaying image content, the light from the image content passes through the light-transmitting hole 4 and reaches the glass substrate 1, allowing people to view the image content normally. When the display device is not displaying image content, no light passes through the light-transmitting hole 4, and what is seen through the glass substrate 1 is the wood grain pattern in the wood grain film layer 11. This effectively achieves the effect of displaying content when the screen is on and presenting the wood grain pattern when the screen is off, making the appearance of the display screen more aesthetically pleasing.
[0045] In this preferred embodiment, the spacing between the multiple light-transmitting holes 4 is set to 1μm to 50μm.
[0046] Based on the above structure, the diameter of the light-transmitting aperture 4 is between 20μm and 50μm, effectively allowing light to pass through. The spacing between the light-transmitting apertures 4 is between 1μm and 50μm. A smaller spacing allows for the placement of more light-transmitting apertures 4, thereby enhancing light transmittance and resulting in a more complete display of image content. However, if the spacing is too small, a more advanced drilling process is required, increasing costs. Therefore, the spacing between the light-transmitting apertures 4 is set to 1μm to 50μm, effectively balancing the cost of the drilling process and the light transmittance.
[0047] In this preferred embodiment, the thickness of the wood grain film layer 11 is 0.03 mm to 0.1 mm.
[0048] Based on the above structure, the wood grain film layer 11 is mainly used to display wood grain patterns. Since the pigment in the pattern has a certain volume, the thickness of the wood grain film layer 11 is relatively large. However, if the thickness of the wood grain film layer 11 is too large, it will lead to an increase in the length of the light-transmitting hole 4 and a decrease in the light transmittance. Therefore, it is necessary to reduce the thickness of the wood grain film layer 11. In order to balance the thickness of the pattern pigment and the light transmittance, the thickness of the wood grain film layer 11 is set to 0.03mm to 0.1mm.
[0049] In this preferred embodiment, the thickness of the benzotriazole layer 12 is 5 nm to 10 nm.
[0050] Based on the above structure, the benzotriazole layer 12 can absorb 200-400nm ultraviolet light and convert it into heat energy, preventing the material from photoaging. The thicker the benzotriazole layer 12, the faster the rate of ultraviolet light absorption and the better the absorption degree. However, benzotriazole is a white to light pink needle-like crystal. If the thickness is increased, it will lead to a decrease in the light transmittance of the display screen. In order to balance the light transmittance and the ability to absorb ultraviolet light, the thickness of the benzotriazole layer 12 is set to 5nm to 10nm.
[0051] In this preferred embodiment, the thickness of the boron trioxide layer 13 is 150 nm to 200 nm; and the thickness of the lead oxide layer 14 is 30 nm to 80 nm.
[0052] Based on the above structure, the boron trioxide layer 13 has high optical refractive properties and high refractive efficiency of interference light. As the thickness increases, the interference effect is enhanced, effectively reducing the phenomenon of unclear display screen visibility under light source illumination. However, a thickness exceeding 200 nm may lead to increased hygroscopicity or internal stress accumulation, making the display screen prone to breakage. Therefore, the thickness of the boron trioxide layer 13 is set between 150 nm and 200 nm.
[0053] Optionally, lead oxide has excellent light transmittance and electrical conductivity, and the resistivity of lead oxide layer 14 is high (up to 10). 10 The lead oxide layer 14 has excellent photoconductivity (Ω·cm). As the thickness of the lead oxide layer 14 increases, the conductivity increases, and the touch screen becomes more sensitive. As the thickness of the lead oxide layer 14 decreases, the light transmittance increases, and the display screen becomes better. To balance the light transmittance and conductivity, the thickness of the lead oxide layer 14 is set between 30nm and 80nm.
[0054] Example 2
[0055] The present invention provides a display device, including a fade-resistant wood grain display screen.
[0056] The implementation principle of the anti-fading wood grain display screen and display device in this embodiment of the utility model is as follows:
[0057] It includes: a glass substrate 1, wherein the thickness of the glass substrate 1 is between 0.7-3mm. The glass substrate 1 serves as the foundation of the entire structure, providing transparency and basic physical support. It features high transparency, good chemical stability, and the ability to withstand certain mechanical stresses.
[0058] It also includes: a coating layer, wherein the coating layer comprises a benzotriazole layer 12, a boron trioxide layer 13, and a lead oxide layer 14.
[0059] A benzotriazole layer 12 is coated on the front side of the glass cover plate, with a thickness of 5 to 10 nanometers. Benzotriazole is an effective ultraviolet absorber that can effectively block the transmission of ultraviolet rays, protecting the glass substrate 1 and the wood grain film layer 11 from fading, aging, and other physicochemical changes caused by ultraviolet rays. This improves the adhesion between the coating layer and the glass substrate 1, thereby enhancing the durability of the display screen.
[0060] Boron trioxide layer 13 is a material with good optical properties and can be used for optical coatings. With a thickness of 150-200 nanometers, it can improve the optical properties of the coating layer, such as refractive index and transmittance.
[0061] The lead oxide layer 14 can be used as an optical coating material with specific optical properties. With a thickness of 30-80 nanometers, it is disposed above the boron trioxide layer 13. As the top layer, the lead oxide layer 14 can further adjust the optical properties of the coating and provide additional protection.
[0062] It also includes a wood grain film layer 11, which is attached to the back of the glass substrate 1. The film has a thickness of 0.03mm-0.1mm and is made of polyvinyl chloride (PVC), polyester (PET), or other polymers. The middle layer uses precision printing technology to reproduce highly realistic wood grain patterns and colors. The raw materials provide the wood grain film with the necessary strength and flexibility, making it easy to adhere to surfaces of various shapes and flatness. With its high simulation, low cost, and simple construction, the wood grain film layer 11 not only enhances the aesthetics of the space but also reflects an emphasis on environmental protection.
[0063] By precisely controlling the thickness and properties of each layer, multiple functions are integrated. First, the glass substrate 1 serves as a base, providing transparency and basic physical support. Subsequently, a benzotriazole layer 12 is coated on the front side of the glass substrate 1, effectively blocking ultraviolet light transmission and protecting the glass substrate 1 and the wood grain film layer 11 from fading and aging caused by ultraviolet light. This achieves effective light management and guidance, avoiding the aging phenomena commonly seen in traditional wood grain films, greatly enhancing the brightness and clarity of the object, and extending the service life of the wood grain film by protecting it from ultraviolet light.
[0064] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.
Claims
1. A fade-resistant wood grain display screen, characterized in that, include: A glass substrate (1) is covered on the surface of the display device to protect the display device. It includes two planes, one facing the display device and the other facing the external environment. A wood grain film layer (11) is disposed on the surface of the glass substrate (1) and located on the side of the glass substrate (1) facing the display device; A benzotriazole layer (12) is disposed on the surface of the glass substrate (1) and located on the side of the glass substrate (1) facing the external environment, for absorbing ultraviolet rays in the external environment.
2. The anti-fading wood grain display screen according to claim 1, characterized in that, Also includes: A boron trioxide layer (13) is disposed on the surface of the benzotriazole layer (12) and located on the side away from the glass substrate (1), and has optical refractive properties.
3. The anti-fading wood grain display screen according to claim 2, characterized in that, Also includes: A lead oxide layer (14) is disposed on the surface of the boron trioxide layer (13) and located on the side away from the boron trioxide layer (13), and has optical transmittance.
4. The anti-fading wood grain display screen according to claim 1, characterized in that, The glass substrate (1) includes a visible area (2) and a non-visible area (3), wherein the non-visible area (3) is disposed around the edge of the visible area (2); The visible area (2) is used to display image content, and the non-visible area (3) is used to cover the circuitry in the display device.
5. A fade-resistant wood grain display screen according to claim 4, characterized in that, Also includes: Multiple light-transmitting holes (4) are disposed on the wood grain film layer (11) and located at positions corresponding to the visible area (2) of the wood grain film layer (11).
6. A fade-resistant wood grain display screen according to claim 5, characterized in that, The spacing between the plurality of light-transmitting holes (4) is set to 1μm to 50μm.
7. A fade-resistant wood grain display screen according to claim 1, characterized in that, The thickness of the wood grain film layer (11) is 0.03 mm to 0.1 mm.
8. A fade-resistant wood grain display screen according to claim 1, characterized in that, The thickness of the benzotriazole layer (12) is 5 nm to 10 nm.
9. A fade-resistant wood grain display screen according to claim 3, characterized in that, The thickness of the boron trioxide layer (13) is 150 nm to 200 nm; The thickness of the lead oxide layer (14) is 30 nm to 80 nm.
10. A display device, characterized in that, Including the fade-resistant wood grain display screen as described in any one of claims 1-9.