High-hardness cover plate display screen convenient to fix and electronic equipment

Abstract

The application discloses a high-hardness cover plate display screen convenient to fix, which comprises a cover plate, a display screen panel and a backlight plastic wall, the backlight plastic wall is used for mounting a light guide plate, a reflecting sheet and an LED light bar, the cover plate is a coated cover plate, a positioning column is arranged on the contact surface of the cover plate and the backlight plastic wall, positioning holes for fixing the positioning columns are arranged on the backlight plastic wall, the positioning column is inserted into the positioning hole, the hole wall of the positioning hole is provided with a flexible avoidance structure for clamping in cooperation with the positioning column. Compared with the prior art, the application sets multiple positioning columns on the coated cover plate and designs corresponding positioning holes on the backlight plastic wall, thereby avoiding the traditional double-sided adhesive foam or optical adhesive bonding mode. The positioning column and the positioning hole are combined through the flexible avoidance structure, the relative displacement between the positioning column and the hole wall is effectively prevented, the coated cover plate and the backlight plastic wall can be fixed firmly, and therefore the assembling precision and stability of the display screen assembly are greatly improved.

Description

Technical Field

[0001] This invention belongs to the field of electronic device structure technology, specifically relating to a high-hardness cover plate display screen and electronic device that are easy to fix. Background Technology

[0002] With the widespread adoption of electronic products, especially consumer electronics such as smartphones, tablets, and wearable devices, displays, as crucial display components, are receiving increasing attention. In particular, the use of glass cover plates in these devices has become an indispensable part of the display screen.

[0003] Traditional glass covers, while offering excellent light transmission, are limited in their widespread use due to their fragility and susceptibility to scratches. To improve the durability of glass covers, various coating technologies and protective layers have been employed in existing technologies, but some problems remain, and not all performance requirements have been effectively addressed.

[0004] First, traditional glass covers often lack sufficient surface protection against environmental challenges such as scratches and sand. Although some technologies employ single or multiple layers of coating, these coating technologies often suffer from unevenness and poor durability, making it difficult to meet the needs of high-intensity usage scenarios.

[0005] Secondly, existing fixing structures are relatively simple, typically using double-sided adhesive foam or optical adhesive to secure the cover plate to the display assembly. While this achieves a secure fit, it is prone to loosening and detachment over long-term use, especially under extreme environmental conditions, where the fixing effect is difficult to guarantee. This not only affects the product's stability but may also adversely impact its appearance and functionality.

[0006] Furthermore, traditional glass cover designs mostly focus on basic functionality, such as scratch resistance and corrosion resistance, lacking additional functional design. For example, some glass covers do not consider additional functions such as changes in the visual effect of the display screen and temperature indication, resulting in their potential in terms of appearance and practicality not being fully explored.

[0007] Therefore, how to provide a high-strength and stable display screen fixing structure while improving the durability, functionality, and aesthetics of the glass cover has become an important issue in current technology. Summary of the Invention

[0008] The purpose of this invention is to overcome the shortcomings of the prior art and provide a high-hardness cover plate display screen that is easy to fix by mechanical snap-fit ​​instead of traditional optical adhesive bonding, as well as an electronic device equipped with the display screen.

[0009] To solve the above-mentioned technical problems, the technical method adopted by the present invention is as follows: The present invention discloses a high-hardness cover plate display screen that is easy to fix, including a cover plate, a display screen panel and a backlight plastic wall. The backlight plastic wall is used to install a light guide plate, a reflector and an LED light strip. The cover plate is a coated cover plate. Positioning posts are provided on the contact surface between the cover plate and the backlight plastic wall. Positioning holes for fixing the positioning posts are provided on the backlight plastic wall.

[0010] The positioning pin is inserted into the positioning hole, and the hole wall of the positioning hole is provided with a flexible clearance structure for cooperating with and clamping the positioning pin.

[0011] Furthermore, the cover plate includes a glass substrate and a multilayer coating structure deposited on the surface of the glass substrate; the multilayer coating structure sequentially includes a yttrium oxide layer, a molybdenum oxide layer, and a zirconium dirhodium layer.

[0012] Furthermore, the positioning post is cylindrical, with an annular flange protruding from the top of the cylindrical shape. The flexible clearance structure includes elastic ribs and clearance areas disposed on the wall of the positioning hole, with the elastic ribs arranged at intervals or continuously along the circumferential direction of the hole wall.

[0013] Furthermore, the diameter of the top annular flange of the positioning post is larger than the diameter of the positioning hole, and the flexible clearance structure achieves the fit between the positioning post and the positioning hole through elastic deformation.

[0014] Furthermore, the yttrium oxide layer, molybdenum oxide layer, and zirconium dirhodium layer are deposited on the surface of the glass substrate by physical vapor deposition, and the thickness of each layer is between 5 nanometers and 25 nanometers.

[0015] Furthermore, the upper surface of the glass substrate is sequentially provided with a yttrium oxide layer, a molybdenum oxide layer, and a zirconium dirhodium layer.

[0016] Furthermore, the non-display area on the lower surface of the glass substrate is also coated with a thermochromic ink layer.

[0017] Furthermore, the thermochromic ink layer is coated with an acrylic resin layer.

[0018] Furthermore, the thickness of the thermochromic ink layer is between 8 and 10 micrometers, and the thickness of the acrylic resin layer is between 40 and 60 micrometers.

[0019] The present invention also discloses an electronic device, including any of the above-described high-hardness cover plate displays that are easy to fix, and circuit components integrated on the high-hardness cover plate displays that are easy to fix.

[0020] Beneficial effects:

[0021] 1. Compared to existing technologies, this invention uses multiple positioning posts on the coated cover plate and corresponding positioning holes designed on the backlight plastic wall for precise fixing. This structure avoids traditional double-sided adhesive foam or optical adhesive bonding methods, ensuring accurate matching between the positioning posts and positioning holes. The positioning posts and positioning holes are combined through a flexible clearance structure, effectively preventing relative displacement between the positioning posts and the hole walls, allowing the coated cover plate and the backlight plastic wall to be firmly fixed, thereby significantly improving the assembly accuracy and stability of the display assembly.

[0022] 2. By employing a multi-layer coating structure consisting of yttrium oxide, molybdenum oxide, and zirconium dirhodium, this invention significantly improves the physical properties of the glass cover. The yttrium oxide layer provides high hardness and excellent scratch resistance; the molybdenum oxide layer not only possesses good electrical conductivity but also allows for applications in touch display devices; and the zirconium dirhodium layer enhances the cover's corrosion resistance. These coating layers are precisely controlled through physical vapor deposition or chemical vapor deposition processes to form a uniform and dense film, improving the cover's durability and meeting the demands of modern electronic devices for high-performance displays.

[0023] 3. This invention employs a thermochromic ink layer on the back bezel area of ​​the glass cover, which changes color according to changes in external temperature. This design not only enhances the visual effect of the display screen but also adds a temperature indication function. This temperature-changing visual effect provided by the ink layer expands the functionality of the display screen, meeting the market demand for electronic products that combine functionality and aesthetics. Attached Figure Description

[0024] Figure 1 This is an overall schematic diagram of the high-hardness cover plate display screen in this invention;

[0025] Figure 2 This is a schematic diagram showing the specific connection of the backlight plastic wall and positioning post in the high-hardness cover plate display screen of the present invention;

[0026] Figure 3 This is a schematic diagram of the specific structure of the glass substrate in the high-hardness cover plate display screen of the present invention. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0028] Example 1: A high-hardness cover plate display screen that is easy to fix

[0029] The display screen of this invention includes a cover plate 1, a display panel 2, and a backlight plastic wall 3 disposed below the display panel 2. The backlight plastic wall 3 contains a fixed light guide plate, a reflective sheet, and LED light strips. The cover plate 1 is a coated cover plate, and multiple positioning posts 4 are provided on the contact surface between the cover plate 1 and the backlight plastic wall 3. Corresponding positioning holes 31 are provided at corresponding positions on the backlight plastic wall 3. The positioning posts 4 and positioning holes 31 are precisely fitted together, avoiding the use of double-sided adhesive foam or optical adhesive for bonding, thus enhancing the stability of the fixation.

[0030] Preferably, the cover plate 1 includes a glass substrate 20 and a multilayer coating structure deposited on the surface of the glass substrate 20; the multilayer coating structure includes, in sequence, a yttrium oxide layer 21, a molybdenum oxide layer 22, and a zirconium dirhodium layer 23.

[0031] In a further preferred embodiment, the yttrium oxide layer 21 has a thickness of 10 to 25 nanometers and is mainly used to improve the hardness of the cover plate and increase scratch resistance; the molybdenum oxide layer 22 has a thickness of 10 to 25 nanometers and is mainly used as a conductive or semiconductor layer, which can be extended to touch devices; the zirconium dirhodium layer 3 has a thickness of 8 to 10 nanometers and enhances corrosion resistance.

[0032] The above-mentioned coating layer is deposited on the surface of the glass cover plate through PVD or CVD processes to form a uniform and dense protective film.

[0033] More preferably, the non-display area on the lower surface of the glass substrate 20 is further coated with a thermochromic ink layer 24. The thickness of the ink layer is 8 to 10 micrometers. This ink layer can display different colors according to changes in external temperature, such as changing from blue to red or other colors, providing a temperature indication function and enhancing the aesthetic effect.

[0034] On the surface of the aforementioned thermochromic ink layer 24, an acrylic resin protective layer 25 with a thickness of 40 to 60 micrometers is also applied. This protective layer provides additional abrasion resistance, chemical resistance, and weather resistance, ensuring the stability of the coating layer and ink layer during long-term use.

[0035] Example 2:

[0036] The display module assembly includes a cover plate 1, a display panel 2, and a backlight plastic wall 3 disposed below the display panel 2. A light guide plate, a reflector, and LED light strips are installed inside the backlight plastic wall 3.

[0037] The cover plate 1 and the backlit plastic wall 3 are connected by the cooperation of multiple positioning posts 4 and positioning holes 31. The number of positioning posts 4 and positioning holes 31 is preferably 4 to 8 sets, and they are evenly distributed in the edge area of ​​the cover plate 1.

[0038] The diameter of the main body of the positioning post 4 is preferably 1.6 mm to 1.8 mm, and the corresponding positioning hole 31 is preferably 1.8 mm to 2.0 mm in diameter. The main body is inserted into the hole to form a small gap for easy insertion.

[0039] The top of the positioning post 4 is provided with an annular flange 41. The outer diameter of the annular flange 41 is preferably 2.1 mm to 2.3 mm, which is larger than the diameter of the positioning hole 31. This allows the annular flange 41 to contact the flexible clearance structure on the hole wall and cause a slight elastic deformation when the positioning post 4 is inserted into the positioning hole 31, thereby achieving a flexible clamping fit and preventing loosening or shaking between the cover plate 1 and the backlight plastic wall 3.

[0040] The cover plate 1 uses high-strength glass as the substrate, namely glass substrate 20, and yttrium oxide layer 21, molybdenum oxide layer 22 and zirconium dirhodium layer 23 are sequentially deposited on its surface by physical vapor deposition (PVD) process.

[0041] During the coating process, a rotating clamp is used to fix the glass substrate 20 to ensure uniform deposition in all directions and to avoid deformation of the cover plate 1 due to coating stress.

[0042] Preferably, on the lower surface of the glass substrate 20, the non-display area is also coated with a thermochromic ink layer 24 by screen printing. The thickness of the ink layer 24 is controlled between 8 and 10 micrometers, and a 120-mesh fine screen is used for printing to ensure the density of the ink layer 24 and the clarity of the pattern.

[0043] Subsequently, an acrylic resin protective layer 25 is formed on the surface of the ink layer 24 by spraying or scraping, and the thickness of the protective layer 25 is controlled to be between 40 micrometers and 60 micrometers.

[0044] Preferably, the positioning hole 31 has a flexible clearance structure along its circumferential direction. The flexible clearance structure preferably consists of a ring of elastic ribs 32, with a height of 0.05 mm to 0.1 mm and a thickness of 0.1 mm to 0.2 mm. The elastic ribs 32 are integrally injection molded from an elastic material, forming a single piece with the backlight plastic wall 3, ensuring both structural strength and elasticity. When the positioning post 4 is inserted into the positioning hole 31, the elastic ribs 32 can undergo slight elastic deformation towards the clearance area 33, forming a flexible clamping effect on the positioning post 4, thereby effectively preventing shaking or loosening between the positioning post 4 and the positioning hole 31.

[0045] In the specific assembly process, the display panel 2 is first fixed to the backlight plastic wall 3, and then the cover plate 1 is inserted in a pre-positioned manner so that the positioning post 4 is accurately inserted into the corresponding positioning hole 31. Since the flexible clearance structure provides micro-elastic resistance, even if there are small dimensional errors, automatic compensation can be achieved, improving assembly accuracy and assembly efficiency.

[0046] This embodiment, through detailed control of the structural dimensions and mating relationships of each component, and supplemented by optimized processing technology, enables the entire display module assembly to not only have good protective performance, but also maintain a high degree of consistent assembly quality in mass production, thereby improving the overall reliability of electronic devices and user experience.

[0047] Example 3: An electronic device

[0048] This embodiment provides an electronic device, which includes a high-hardness cover plate display screen that is easy to fix as in embodiment 1 or 2, and integrates circuit components, power supply modules and other functional modules. The electronic device includes smartphones, tablets, vehicle central control screens or portable display terminals, etc.

[0049] During the assembly of electronic devices, the cover plate 1, the display panel 2, and the backlight plastic wall 3 are assembled into a whole. Multiple positioning posts 4 of the cover plate 1 are inserted into the corresponding positioning holes 31 on the backlight plastic wall 3. With the help of the elastic effect generated by the flexible air-proof structure, a firm and reliable positioning and fixation can be achieved without relying on a large amount of double-sided adhesive foam or optical adhesive, which simplifies the production process and improves the overall assembly accuracy and reliability of the display components.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A high-hardness cover plate display screen that is easy to fix, comprising a cover plate (1), a display panel (2), and a backlight plastic wall (3), wherein the backlight plastic wall (3) is used to install a light guide plate, a reflector, and an LED light strip, characterized in that: The cover plate (1) is a coated cover plate, and a positioning post (4) is provided on the contact surface between the cover plate (1) and the backlight plastic wall (3); the backlight plastic wall (3) is provided with a positioning hole (31) for fixing the positioning post (4). The positioning post (4) is inserted into the positioning hole (31), and the hole wall of the positioning hole (31) is provided with a flexible clearance structure for cooperating with the positioning post (4) for clamping. 2.The high stiffness cover plate display with easy fixation of claim 1, wherein: The cover plate (1) includes a glass substrate (20) and a multilayer coating structure deposited on the surface of the glass substrate (20); the multilayer coating structure includes a yttrium oxide layer (21), a molybdenum oxide layer (22) and a zirconium dirhodium layer (23) in sequence.

3. The fixed easily high stiffness cover plate display according to claim 1, wherein: The positioning post (4) is cylindrical, and the top is provided with an annular flange (41) protruding from the cylindrical shape. The flexible clearance structure includes elastic ribs (32) and clearance area (33) provided on the hole wall of the positioning hole (31). The elastic ribs (32) are arranged at intervals or continuously along the circumferential direction of the hole wall.

4. The fixed easily high stiffness cover plate display according to claim 3, wherein: The diameter of the top annular flange (41) of the positioning post (4) is larger than the diameter of the positioning hole (31). The flexible clearance structure achieves the cooperation between the positioning post (4) and the positioning hole (31) through elastic deformation. 5.The high stiffness cover plate display with easy fixation of claim 2, wherein: The yttrium oxide layer (21), molybdenum oxide layer (22) and zirconium dirhodium layer (23) are deposited on the surface of the glass substrate (20) by physical vapor deposition process, and the thickness of each layer is between 5 nanometers and 25 nanometers. 6.The high stiffness cover plate display with easy fixation of claim 5, wherein: The upper surface of the glass substrate (20) is provided with a yttrium oxide layer (21), a molybdenum oxide layer (22), and a zirconium dirhodium layer (23) in sequence.

7. The fixed-easily high stiffness cover plate display according to claim 6, characterized in that: The non-display area on the lower surface of the glass substrate (20) is also coated with a thermochromic ink layer (24). 8.The high stiffness cover plate display with easy fixation of claim 7, wherein: An acrylic resin layer (25) is coated on the thermochromic ink layer (24). 9.The high stiffness cover plate display with easy fixation of claim 8, wherein: The thickness of the thermochromic ink layer (24) is between 8 and 10 micrometers, and the thickness of the acrylic resin layer (25) is between 40 and 60 micrometers.

10. An electronic device, comprising: It includes the high-hardness cover plate display screen that is easy to fix as described in any one of claims 1-9, and the circuit components integrated on the high-hardness cover plate display screen that is easy to fix.

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