Wear-resistant coated cover plate, display module and display device

Abstract

The utility model discloses a wear-resistant film-coated cover plate, a display module and a display device, the wear-resistant film-coated cover plate comprises a cover plate, the top of the cover plate is provided with a film-coated structure, the film-coated structure comprises a surface film-coated layer, a middle film-coated layer and a bottom film-coated layer, the bottom coating layer, the middle coating layer and the surface coating layer are sequentially coated on the surface of the cover plate from bottom to top to jointly form the coating structure. According to the wear-resistant coated cover plate, the display module and the display device provided by the utility model, multi-dimensional improvement of the performance of the cover plate is realized through layer-by-layer superposition of chemical substances with different properties, specifically, the chromium sesquioxide film layer (Cr2O3) is used as a middle layer, and external mechanical wear is effectively resisted by using excellent hardness and wear resistance of the chromium sesquioxide film layer (Cr2O3), so that the service life of the display module is prolonged. Meanwhile, the strontium titanate film layer (SrTiO3) serves as a bottom layer, a stable foundation is provided for a whole film coating system by means of the high dielectric constant and excellent insulativity of the strontium titanate film layer, and light conduction is optimized.

Description

Technical Field

[0001] This utility model relates to the field of cover plate technology, and in particular to a wear-resistant coated cover plate, a display module, and a display device. Background Technology

[0002] The display cover is a crucial component of a touchscreen structure, typically made of tempered glass. Located on the top layer of the touchscreen, its primary functions are to protect the screen and receive touch signals. In a touchscreen, the cover is the top layer, protecting the functional glass beneath and responsible for receiving and processing touch signals. Depending on the application, display covers can be categorized into types such as sodium silicate glass, glossy glass, and Gorilla Glass.

[0003] With the advancement of technology and consumers' ever-increasing pursuit of product aesthetics and functionality, traditional glass covers can no longer meet market demands. Existing covers have limitations in terms of durability, lack innovation and personalization, and prolonged use can easily accelerate wear and tear, thus affecting the display effect. Therefore, a wear-resistant coated cover, display module, and display device are proposed. Utility Model Content

[0004] Therefore, it is necessary to provide a wear-resistant coated cover plate, display module, and display device to address the above-mentioned technical problems. The design of the coating structure on the surface of the conventional cover plate can improve its excellent hardness and wear resistance, effectively resist external mechanical wear, and at the same time maintain good light transmission.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A wear-resistant coated cover plate includes a cover plate, and a coating structure is provided on the top of the cover plate. The coating structure includes a surface coating layer, a middle coating layer and a bottom coating layer. The bottom coating layer, the middle coating layer and the surface coating layer are coated on the surface of the cover plate from bottom to top to form the coating structure.

[0007] The intermediate coating layer is a chromium trioxide film layer.

[0008] Furthermore, the surface coating layer is a yttrium chromium oxide film layer.

[0009] Furthermore, the bottom coating layer is a strontium titanate film layer.

[0010] Furthermore, the thickness of the bottom coating layer is 50nm-100nm;

[0011] The thickness of the intermediate coating layer is 20nm-50nm;

[0012] The thickness of the surface coating layer is 30nm-60nm.

[0013] Furthermore, the cover plate has a visible area at its center and a non-visible area outside the visible area.

[0014] Furthermore, a photosensitive color-changing ink layer is screen-printed on the bottom of the cover plate at a position corresponding to the non-visible area.

[0015] Furthermore, the edge of the cover plate is wrapped with a frame.

[0016] A display module includes a wear-resistant coated cover plate and a housing, wherein the frame is attached to one side of the housing by optical adhesive.

[0017] The housing has a display slot inside, through which a liquid crystal panel is embedded and installed. The liquid crystal panel is positioned corresponding to the visible area.

[0018] A display device includes a display module and an iron frame. The iron frame has a backlight groove inside. The iron frame is embedded and assembled with a plastic shell. The backlight module is installed inside the iron frame through the backlight groove.

[0019] Furthermore, the iron frame has a window that is connected to the backlight slot, and the backlight module can illuminate the LCD panel by the action of the window.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] This utility model provides a wear-resistant coated cover plate, display module and display device. By layering chemical substances of different properties, the performance of the cover plate is improved in multiple dimensions. Specifically, a chromium trioxide film layer (Cr2O3) is used as the intermediate layer. Its excellent hardness and wear resistance can effectively resist external mechanical wear while maintaining good light transmission.

[0022] Meanwhile, by using the strontium titanate film (SrTiO3) as the bottom layer, its high dielectric constant and excellent insulation provide a solid foundation for the entire coating system, optimize light transmission, and work in conjunction with the surface yttrium chromium oxide film (YCr2O3) to further enhance corrosion resistance and chemical stability, ensuring that the cover plate remains clear and transparent for a long time.

[0023] In addition, the innovative application of photosensitive color-changing ink layer on the back of the cover allows the cover to display different colors according to the light intensity or the color of a specific light source, thereby adding a unique sense of technology and fun to the product in the non-visible area of ​​the LCD panel and meeting the personalized needs of different users. Attached Figure Description

[0024] Figure 1 A schematic diagram of the structure of a wear-resistant coated cover plate, a display module and a display device provided by this utility model;

[0025] Figure 2 A schematic diagram of the housing structure of a wear-resistant coated cover plate, display module and display device provided by this utility model;

[0026] Figure 3 This utility model provides a wear-resistant coated cover plate, a display module, and a display device. Figure 1 Enlarged structural diagram at point A in the middle;

[0027] Figure 4 A schematic diagram of the cover structure of a wear-resistant coated cover plate, display module and display device provided by this utility model;

[0028] Figure 5 This utility model provides a wear-resistant coated cover plate, a display module, and a display device. Figure 4 Enlarged structural diagram at point B;

[0029] Figure 6 This utility model provides a schematic diagram of the coating structure of a wear-resistant coated cover plate, a display module, and a display device.

[0030] The markings in the diagram are explained as follows:

[0031] Cover plate 1, visible area 11, non-visible area 12, photosensitive color-changing ink layer 13;

[0032] Coating structure 2, surface coating layer 21, middle coating layer 22, bottom coating layer 23;

[0033] Border 3;

[0034] 4. Housing; 41. Display slot;

[0035] LCD panel 5;

[0036] 6. Iron frame, 61. Backlight module, 62. Window, 63. Backlight slot. Detailed Implementation

[0037] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0038] As described in the background section, existing cover plates have limitations in terms of durability, lack innovation and personalization, and prolonged use can easily accelerate wear and tear, thus affecting the display effect.

[0039] To solve this technical problem, this utility model provides a wear-resistant coated cover plate, a display module, and a display device, which are applied to display screen covers.

[0040] For details, please refer to Figures 1-6 As shown, the wear-resistant coated cover plate includes a cover plate 1, and a coating structure 2 is provided on the top of the cover plate 1. The coating structure 2 includes a surface coating layer 21, a middle coating layer 22 and a bottom coating layer 23. The bottom coating layer 23, the middle coating layer 22 and the surface coating layer 21 are coated on the surface of the cover plate 1 from bottom to top to form the coating structure 2.

[0041] The intermediate coating layer 22 is a chromium trioxide film layer.

[0042] This utility model provides a wear-resistant coated cover plate, display module and display device. By layering chemical substances of different properties, the performance of the cover plate 1 is improved in multiple dimensions. Specifically, a chromium trioxide film layer (Cr2O3) is used as the intermediate layer. Its excellent hardness and wear resistance can effectively resist external mechanical wear while maintaining good light transmission.

[0043] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0044] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0045] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0046] Example 1

[0047] Please refer to Figures 1-6 As shown, a wear-resistant coated cover plate includes a cover plate 1, with a coating structure 2 on the top of the cover plate 1. By designing the coating structure 2 on the surface of the cover plate 1, protection can be provided on the surface of the cover plate 1, achieving effective protection for the cover plate 1 itself. The detailed structure of the coating structure 2 is as follows:

[0048] The coating structure 2 includes a surface coating layer 21, a middle coating layer 22 and a bottom coating layer 23. The bottom coating layer 23, the middle coating layer 22 and the surface coating layer 21 are coated on the surface of the cover plate 1 from bottom to top to form the coating structure 2.

[0049] In this embodiment, the intermediate coating layer 22 is a chromium trioxide film layer. Cr2O3, or chromium trioxide, is a material with excellent hardness and wear resistance. Using it as the material for the intermediate coating layer can enhance the mechanical properties of the cover plate 1, protect the inner coating layer (bottom coating layer 23) from external wear, and maintain a certain degree of optical transmittance.

[0050] In this embodiment, the surface coating layer 21 is a yttrium chromium oxide film layer, specifically the yttrium chromium oxide film layer material is YCr2O3. YCr2O3 has good wear resistance, corrosion resistance and chemical stability. Using it as the surface layer can further protect the internal coating layer, prevent the external environment from corroding the cover plate, and at the same time maintain the overall optical performance, making the cover plate more durable.

[0051] In this embodiment, the bottom coating layer 23 is a strontium titanate film layer, specifically SrTiO3. SrTiO3 is a high dielectric constant material with good insulation and optical transparency. As a bottom layer, it provides a stable substrate, which is beneficial for the adhesion of subsequent coatings and enhances the overall optical performance.

[0052] In summary, in this embodiment, the cover plate 1 is used to provide structural support and optical transparency, SrTiO3 is used as the bottom layer to stabilize the substrate, enhance adhesion, and optimize optical performance, Cr2O3 is used as the middle layer to enhance mechanical properties, protect the inner coating, and maintain optical transmittance, and YCr2O3 is used as the top layer to provide wear-resistant and corrosion-resistant protection and maintain overall optical performance.

[0053] Example 2

[0054] Further optimizations to the wear-resistant coated cover plate provided in Embodiment 1, specifically, as follows: Figure 4 As shown, the thickness of the bottom coating layer 23 is 50 nm - 100 nm, the thickness of the middle coating layer 22 is 20 nm - 50 nm, and the thickness of the surface coating layer 21 is 30 nm - 60 nm.

[0055] The specific thicknesses and thickness ratios of the bottom coating layer 23, the middle coating layer 22, and the top coating layer 21 can be adjusted adaptively according to the actual application scenario.

[0056] Example 3

[0057] Further optimizations can be made to the wear-resistant coated cover plate provided in Embodiment 1 or 2, such as... Figures 1-3 As shown, the cover plate 1 has a visible area 11 at its center and a non-visible area 12 outside the visible area 11. The visible area 11 is used for the display projection of the display module below. The non-visible area 12 does not need to display the display image projected by the display screen below, but it is still transparent.

[0058] A photosensitive color-changing ink layer 13 is screen-printed on the bottom of the cover plate 1 at the position corresponding to the non-visible area 12;

[0059] The edge of the cover plate 1 is wrapped with a frame 3, which can protect the outer edges of the cover plate 1 and the coating structure 2.

[0060] This embodiment combines the above embodiments to achieve the integration of multi-layer coating technology and photosensitive color-changing ink printing technology. By layering chemical substances with different properties, the performance of the cover plate is improved in multiple dimensions. SrTiO3, as the bottom layer, provides a solid foundation for the entire coating system with its high dielectric constant and excellent insulation, optimizing light transmission. The Cr2O3 intermediate layer effectively resists external mechanical wear with its excellent hardness and wear resistance, while maintaining good light transmission. The YCr2O3 surface layer further enhances corrosion resistance and chemical stability, ensuring that the cover plate remains clear and transparent for a long time.

[0061] Furthermore, the innovative application of the photosensitive color-changing ink layer 13 on the back of the cover plate 1 allows the cover plate 1 to change color when exposed to ultraviolet light or sunlight, specifically from colorless to colored, enhancing the user's enjoyment when using this flexible display screen.

[0062] Example 4

[0063] This embodiment proposes a display module that combines the wear-resistant coated cover plate from Embodiments 1, 2 and 3 above. The specific structure of the wear-resistant coated cover plate is as described in the above embodiments, and it also includes a housing 4. The frame 3 is attached to one side of the housing 4 with optical adhesive.

[0064] The housing 4 has a display slot 41 inside, and the liquid crystal panel 5 is embedded and installed inside the housing 4 through the display slot 41. The liquid crystal panel 5 is arranged corresponding to the visible area 11.

[0065] The display slot 41 allows the image displayed on the LCD panel 5 to be projected onto the surface of the cover plate 1 for external viewing.

[0066] Example 5

[0067] This embodiment proposes a display module that combines the display module of the above embodiment four. The specific structure of the display module is as described in the above embodiment. It also includes an iron frame 6. The iron frame 6 has a backlight groove 63 inside. The iron frame 6 is embedded and assembled with the plastic shell 4. The backlight module 61 is installed inside the iron frame 6 through the backlight groove 63.

[0068] The iron frame 6 has a window 62, which is connected to the backlight groove 63. The backlight module 61 can be illuminated by the window 62 to illuminate the LCD panel 5.

[0069] The process of using the wear-resistant coated cover plate, display module and display device provided by this utility model is as follows: A bottom coating layer 23 (strontium titanate film layer, SrTiO3) is coated on the surface of a conventional cover plate 1. Then, a middle coating layer 22 (chromium trioxide film layer, Cr2O3) is coated on the surface of the bottom coating layer 23. Finally, a surface coating layer 21 (yttrium chromium oxide film layer, YCr2O3) is coated on the surface of the middle coating layer 22. This completes the coating operation of the coating structure 2 on the surface of the cover plate 1. Then, a photosensitive color-changing ink layer 13 is screen-printed on the bottom of the cover plate 1 corresponding to the above-mentioned non-visible area 12.

[0070] Through the above operations, the performance of the cover plate 1 can be improved in multiple dimensions by layering chemical coating materials of different properties. At the same time, the surface of the cover plate 1 in the non-visible area 12 can display different colors according to the light intensity or the color change of a specific light source, adding a unique sense of technology and fun to the product.

[0071] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0072] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A wear-resistant coated cover plate, characterized in that, It includes a cover plate (1), and a coating structure (2) is provided on the top of the cover plate (1). The coating structure (2) includes a surface coating layer (21), a middle coating layer (22) and a bottom coating layer (23). The bottom coating layer (23), the middle coating layer (22) and the surface coating layer (21) are coated on the surface of the cover plate (1) from bottom to top to form the coating structure (2). The intermediate coating layer (22) is a chromium trioxide film layer.

2. The wear-resistant coated cover plate according to claim 1, characterized in that, The surface coating layer (21) is a yttrium chromium oxide film layer.

3. The wear-resistant coated cover plate according to claim 2, characterized in that, The bottom coating layer (23) is a strontium titanate film layer.

4. The wear-resistant coated cover plate according to claim 3, characterized in that, The thickness of the bottom coating layer (23) is 50 nm - 100 nm; The thickness of the intermediate coating layer (22) is 20 nm - 50 nm; The thickness of the surface coating layer (21) is 30 nm - 60 nm.

5. The wear-resistant coated cover plate according to claim 1, characterized in that, The cover plate (1) has a visible area (11) at its center and a non-visible area (12) outside the visible area (11).

6. The wear-resistant coated cover plate according to claim 5, characterized in that, The bottom of the cover plate (1) is screen-printed with a photosensitive color-changing ink layer (13) at the position corresponding to the non-visible area (12).

7. The wear-resistant coated cover plate according to claim 1, characterized in that, The edge of the cover plate (1) is wrapped with a frame (3).

8. A display module comprising a wear-resistant coated cover plate according to any one of claims 1-7, characterized in that, It also includes a housing (4), the frame (3) being attached to one side of the housing (4) by optical adhesive; The housing (4) has a display slot (41) inside, and the liquid crystal panel (5) is embedded and installed inside the housing (4) through the display slot (41). The liquid crystal panel (5) is correspondingly set with the visible area (11).

9. A display device comprising a display module as described in claim 8, characterized in that, It also includes an iron frame (6), the iron frame (6) has a backlight groove (63) inside, the iron frame (6) is embedded and assembled with the plastic shell (4), and the iron frame (6) installs the backlight module (61) inside through the backlight groove (63).

10. A display device according to claim 9, characterized in that, The iron frame (6) has a window (62) which is connected to the backlight groove (63). The backlight module (61) can be illuminated by the window (62) to illuminate the liquid crystal panel (5).

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