Vehicle-mounted liquid crystal display screen and automobile

Abstract

The utility model relates to the technical field of vehicle-mounted display screens, in particular to a vehicle-mounted liquid crystal display screen and an automobile. The vehicle-mounted liquid crystal display screen comprises a frame, a back plate, a liquid crystal module and a backlight module, a separation part is arranged on the inner side of the frame, the frame wraps the liquid crystal module and the backlight module, the liquid crystal module is arranged on the front side of the separation part, and the backlight module is arranged on the back side of the separation part; the back plate is buckled on the frame; the liquid crystal module comprises a liquid crystal screen and a cover plate, and the cover plate is attached to the liquid crystal screen and attached to the frame; the backlight module comprises a light bar, a reflector plate and a light guide plate, and the reflector plate is arranged on the back of the light guide plate; the light bar is arranged on the inner side of the frame and faces the light guide plate. The backlight module enhances the brightness and the contrast ratio of the display screen, and better use experience is provided for passengers. The liquid crystal module and the backlight module are embedded in the frame, and the back plate is buckled on the frame, so that the vehicle-mounted liquid crystal display screen is lighter, thinner, more attractive and cooler, and the mounting space requirement is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-mounted display screens, in particular to a vehicle-mounted liquid crystal display screen and an automobile. Background Art

[0002] A vehicle-mounted display screen is one of the devices equipped in most automobiles. The vehicle-mounted display screen provides functions such as entertainment navigation and control interfaces for passengers. Most current vehicle-mounted liquid crystal display screens pursue thinness and lightness, giving passengers a more beautiful and cool feeling. However, some display screens are installed in thick and heavy casings, which makes the display screens look very thick and heavy and not beautiful.

[0003] For example, a vehicle-mounted display screen with a dust-proof structure disclosed in Chinese Patent Application No.: CN202323215636.1, including a casing, a display screen body is installed on the front of the casing, a cleaning component for cleaning the caked floating dust on the surface of the display screen body is movably installed on the surface of the casing, grooves are opened on both sides of the display screen body on the front of the casing, an elastic connection component is slidably connected in the inner cavity of the groove, the cleaning component is movably connected with the casing through the elastic connection component, a storage groove adapted to the cleaning component is opened above the display screen body on the front of the casing, and an installation component for adjusting the use angle of the display screen body is installed at the bottom of the casing. It is installed in a thick and heavy casing, and the display screen looks very thick and heavy and not beautiful.

[0004] Another example is a vehicle-mounted display screen with polarization and anti-direct sunlight disclosed in Chinese Patent Application No.: CN202223440656.4, including a display screen casing, characterized in that: an inner groove is provided inside the display screen casing, an anti-direct sunlight component is provided inside the inner groove, and two assembly components are provided on one outer wall of the display screen casing. The display screen is also installed in a thick and heavy casing, and the display screen looks very thick and heavy and not beautiful. Summary of the Utility Model

[0005] In view of this, aiming at the deficiencies existing in the prior art, the main purpose of the present utility model is to provide a vehicle-mounted liquid crystal display screen, which is not only structurally compact, but also thinner in thickness, more beautiful and cool, thus overcoming the deficiencies of the prior art.

[0006] To achieve the above purpose, the present utility model adopts the following technical solutions:

[0007] The present application provides a vehicle-mounted liquid crystal display screen, including a frame, a backplane, a liquid crystal module, and a backlight module; a partition part is arranged inside the frame, the frame wraps the liquid crystal module and the backlight module, the liquid crystal module is on the front side of the partition part, and the backlight module is on the back side of the partition part; the backplane is buckled on the frame;

[0008] The liquid crystal module includes a liquid crystal screen and a cover plate. The cover plate is attached to the liquid crystal screen and is also attached to the frame.

[0009] The backlight module includes a light bar, a reflector, and a light guide plate. The reflector is disposed on the back of the light guide plate. The light bar is disposed inside the frame and faces the light guide plate.

[0010] Preferably, a 3A film and / or a protective film are also adhered to the cover plate.

[0011] Preferably, the 3A film is successively provided with an anti-reflection layer, an anti-glare layer, and an anti-fingerprint pollution layer from the inside to the outside. The protective film is a PET protective film or a PE protective film.

[0012] Preferably, an optical adhesive layer is provided between the liquid crystal screen and the cover plate.

[0013] Preferably, a diffusion film and at least one brightness enhancement film are successively provided on the light guide plate.

[0014] Preferably, the cover plate is a transparent plastic plate or glass.

[0015] Preferably, the frame is a rubber frame. A plurality of fastening blocks are provided on the outer side surface of the back plate, and a plurality of fastening holes are provided on the frame. The fastening holes are fastened to the fastening blocks.

[0016] Preferably, a limiting notch is provided at the corner position of the light guide plate, and an elastic limiting block is provided on the limiting notch.

[0017] Preferably, the thickness T1 of the frame is between 5 - 6 mm, and the thickness T2 of the cover plate is between 0.6 - 1 mm.

[0018] Compared with the prior art, the present utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solutions, the backlight module enhances the brightness and contrast of the display screen, providing a better user experience for passengers. The liquid crystal module is embedded on the front side of the partition part, and the cover plate on the liquid crystal screen is attached to the frame. The backlight module is embedded on the back side of the partition part, and the back plate is fastened to the frame. This design enables the liquid crystal module and the backlight module to be compactly arranged inside the frame, making the thickness of the in-vehicle liquid crystal display thinner, more beautiful, cooler, and reducing the installation space requirement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is an overall schematic diagram of an embodiment of the present utility model.

[0020] Figure 2 is an embodiment of the present utility model Figure 1 schematic diagram from another angle.

[0021] Figure 3It is a cross-sectional schematic diagram of an embodiment of the present utility model.

[0022] Figure 4 is an embodiment of the present utility model Figure 3 in the B-B cross-sectional schematic diagram.

[0023] Figure 5 is an exploded schematic diagram of an embodiment of the present utility model.

[0024] Explanation of the attached drawing reference numerals:

[0025] 10. Frame; 11. Clamping block; 12. Partition part; 13. Back plate; 14. Clamping hole; 20. Liquid crystal module; 21. Liquid crystal screen; 22. Optical adhesive layer; 23. Cover plate; 24. 3A film; 35. Protective film; 30. Backlight module; 31. Light bar; 32. Reflector; 33. Light guide plate; 34. Limit notch; 35. Limit block; 36. Diffusion film; 37. Brightness enhancement film. Detailed implementation manners

[0026] To further elaborate on the technical means and effects adopted by the present utility model to achieve the predetermined utility model purpose, the following, in conjunction with the attached drawings and preferred embodiments, details the specific implementation manners, structures, features and their effects of the present utility model as follows.

[0027] Please refer to Figures 1 to 5 as shown, which shows the specific structure of the preferred embodiment of the present utility model, and is a vehicle-mounted liquid crystal display screen.

[0028] Among them, the liquid crystal module 20 and the backlight module 30 are arranged in the frame body, the cover plate 23 is attached to the frame 10, and the back plate 13 is clamped to the frame 10, so that the structure of the vehicle-mounted liquid crystal display screen is very compact and very thin and light, and looks more beautiful and cool.

[0029] The present application provides a vehicle-mounted liquid crystal display screen, which includes a frame 10, a backplane 13, a liquid crystal module 20, and a backlight module 30; a partition portion 12 is provided inside the frame 10, the frame 10 wraps the liquid crystal module 20 and the backlight module 30, the liquid crystal module 20 is on the front side of the partition portion 12, and the backlight module 30 is on the back side of the partition portion 12; the backplane 13 is snapped onto the frame 10; the liquid crystal module 20 includes a liquid crystal screen 21 and a cover plate 23, the cover plate 23 is attached to the liquid crystal screen 21 and is attached to the frame 10 together; the backlight module 30 includes a light bar 31, a reflector 32, and a light guide plate 33, and the reflector 32 is provided on the back of the light guide plate 33; the light bar 31 is provided inside the frame 10 and faces the light guide plate 33. The cover plate 23 is attached to the liquid crystal screen 21. After the liquid crystal module 20 is embedded in the front side of the frame 10, the cover plate 23 is bonded to the frame 10, which can achieve a good sealing effect and has a good waterproof and dustproof function. After the backlight module 30 is embedded in the back side of the frame 10, the backplane 13 is snapped onto the frame 10, so that the backlight module 30 can be fixed to the frame 10. The partition portion 12 can play a role in supporting, positioning, and separating, and the assembly is more simple and convenient. The light emitted by the light bar 31 is projected from the light guide plate 33 to the front position, and the reflector 32 can control the direction of the light. The main function of the backlight module 30 is to provide uniform light, increase the illumination in a low-light environment and the brightness on a computer monitor and a liquid crystal screen, and generate light in a manner similar to that of a CRT display. The backlight module 30 not only improves the visual effect and user experience of the display screen by providing uniform and efficient light, but also meets the requirements of different devices and applications. It has evolved from the traditional CRT display technology and has become an indispensable part of modern display screen technology.

[0030] Preferably, a 3A film 24 and / or a protective film 25 are also adhered to the cover plate 23. The 3A film 24 is provided with an anti-reflection layer, an anti-glare layer, and an anti-fingerprint contamination layer in sequence from the inside out; the protective film 25 is a PET protective film 25 or a PE protective film 25. The 3A film 24 is a high-performance optical film, which integrates three functions: anti-reflection (AR): by adding a reflective film layer on the glass to improve the light transmittance, through magnetron sputtering coating technology, a layer of anti-reflection and anti-reflection film is deposited on the glass surface to play a role in increasing the transmittance and reducing reflection. Anti-glare (AG): by means of chemical etching or spraying, etc., to change the roughness of the glass surface, so that the surface produces a matte effect, achieving the effect of diffuse reflection, reducing the direct reflection of light into the human eye, thereby reducing glare. Anti-fingerprint contamination (AF): by coating a layer of nano-chemical material on the outer surface of the glass, reducing the surface tension of the glass, reducing the contact area between dust and the glass surface, making the glass have strong hydrophobic, anti-oil stain, and anti-fingerprint capabilities. The 3A film 24 is arranged on the cover plate 23 by means of adhesion. The protective film 25 can provide a protective effect to prevent the display screen from being scratched during assembly.

[0031] Preferably, an optical adhesive layer 22 is provided between the liquid crystal screen 21 and the cover plate 23. The optical adhesive layer 22 is an OCA (Optically Clear Adhesive), a special adhesive for bonding transparent optical elements (such as lenses, etc.). It is required to be colorless and transparent, with a light transmittance of more than 95%, good bonding strength, curable at room temperature or medium temperature, and having characteristics such as small curing shrinkage.

[0032] Preferably, a diffusion film 36 and at least one brightness enhancement film 37 are sequentially disposed on the light guide plate 33. The diffusion film 36 is a metal diaphragm with a microscopic porous structure, usually made of PET material. The diffusion film 36 functions to disperse and expand light. Through its microporous structure, it can control ordinary gases, allow diffusion flow to pass through, and perform isotope dispersion using quality differences. The pore diameter of these micropores is approximately between 0.01 and 0.03 microns, and there are hundreds of millions of such micropores per square centimeter of the diaphragm. The basic structure of the diffusion film 36 is usually to coat optical diffusing particles on both sides of a transparent material such as PET, enabling it to modify the diffusion angle at the position of the backlight source in the LCD module, thereby increasing the light irradiation area. Although the light intensity per unit area decreases, after the light from the light-emitting source is dispersed through the diffusion material, a secondary light source with a larger area, excellent uniformity, and stable chromaticity can be formed. There are two brightness enhancement films 37 in this embodiment, which are pasted and stacked together. The main function of the brightness enhancement film 37 is to gather the dispersed light emitted by the light source towards the front direction to increase the brightness. When used orthogonally in two pieces, the front brightness can be increased by approximately 100%. The thickness of this thin film material is only 155μm, having basically no impact on the thickness of the display device. In addition, the diffusion film 36 also has the function of reducing light intensity, which is achieved through its special structure and material, causing light to scatter on its surface and spreading the light gently and evenly. In the backlight module 30 for liquid crystal displays, using this diffusion film 36 can provide a display effect of being thin, having a high haze, and high brightness, while reducing the number of components. The light guide plate 33, abbreviated as LGP, is an optical element widely used in fields such as liquid crystal displays and lamps. Its main characteristics include being ultra-thin, ultra-bright, and having uniform light guiding, and can be spliced through a simple process. The core function of the light guide plate 33 is to effectively convert the light source from the side into a surface light source, ensuring uniform light distribution on the light-emitting surface, thereby improving the display effect and visual comfort. The reflector 32 is an optical element used to increase the brightness and contrast of the display screen. In a reflective liquid crystal display screen, the function of the reflector 32 is to illuminate the screen by reflecting the surrounding light, rather than emitting light through a backlight like the traditional liquid crystal screen 21. This technology utilizes ambient light, enabling the display screen to clearly display images in an environment with sufficient light without the need for an additional backlight. The lamp bar 31 is preferably an LED lamp bar 31, with an FPC provided on it for convenient installation and connection.

[0033] Preferably, the cover plate 23 is a transparent plastic plate or glass. The cover plate 23 in this embodiment is soda-lime glass, which is a glass mainly composed of sodium oxide and silicon dioxide.

[0034] Preferably, the frame 10 is a rubber frame. A plurality of fastening blocks 11 are provided on the outer side of the backplane 13, and a plurality of fastening holes 14 are provided on the frame. The fastening holes 14 are fastened to the fastening blocks 11. With this design, the backplane 13 can be fastened into the frame 10 from the inside out. In this way, the overall thickness is very thin. Of course, there can also be another solution. A plurality of fastening blocks 11 are provided on the outer side of the frame 10, and a plurality of fastening holes 14 are provided on the backplane 13. The fastening holes 14 are fastened to the fastening blocks 11. The backplane 13 is a metal backplane 13, such as stainless steel, aluminum alloy, etc. Threaded posts 15 are provided on the backplane 13 of the backplane 13, and the threaded posts 15 can be used to install the display screen, which is very convenient.

[0035] Preferably, a limiting notch 34 is provided at the corner position of the light guide plate 33, and an elastic limiting block 35 is provided on the limiting notch 34. The limiting block 35 is preferably a silica gel block. During assembly, the limiting block 35 is embedded in the limiting notch 34, and the frame 10 presses the light guide plate 33, so that the backlight module 30 is fixed inside the frame 10. Preferably, limiting notches 34 are provided at the left and right corners at the top of the light guide plate 33. The structures of the limiting block 35 and the limiting notch 34 are L-shaped or right-angled.

[0036] Preferably, the thickness T1 of the frame 10 is between 5 - 6 mm, and the thickness T2 of the cover plate 23 is between 0.6 - 1 mm. The thicknesses of both the frame 10 and the cover plate 23 are very small, and the thickness of the backplane 13 is also very thin, between 0.2 - 1 mm. Therefore, the thickness of this in-vehicle liquid crystal display screen is very thin, and the overall appearance is very beautiful and cool. Its installation space requirement is small, and it can adapt to more installation environments.

[0037] An automobile, the in-vehicle liquid crystal display screen described above; the in-vehicle liquid crystal display screen is arranged on the center console. The center console will appear more cool. The center console is provided with a mounting groove, and the screw is screwed onto the threaded post 15 on the back of the in-vehicle liquid crystal display screen. The installation of this display screen is very simple and convenient.

[0038] In summary, the design focus of the present utility model is that the liquid crystal module 20 and the backlight module 30 are embedded in the frame 10, the cover plate 23 is attached to the frame 10, and the backplane 13 is fastened to the frame 10. This design enables the liquid crystal module 20 and the backlight module 30 to be compactly arranged inside the frame 10, making the in-vehicle liquid crystal thinner, more beautiful and cooler, and reducing the installation space requirement.

[0039] The above are only the preferred embodiments of the present utility model, and do not impose any formal limitations on the present utility model. Although the present utility model has been disclosed above with the preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to equivalent embodiments of equivalent changes by using the above-disclosed technical content within the scope of the technical solution of the present utility model. However, as long as it does not depart from the content of the technical solution of the present utility model, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. A vehicle-mounted liquid crystal display screen, characterized in that: It includes a frame, a back plate, a liquid crystal module, and a backlight module; a partition is arranged inside the frame, the frame wraps the liquid crystal module and the backlight module, the liquid crystal module is arranged on the front side of the partition, and the backlight module is arranged on the back side of the partition; the back plate is buckled on the frame; The liquid crystal module includes a liquid crystal screen and a cover plate, wherein the cover plate is attached to the liquid crystal screen and attached to the frame; The backlight module comprises a light bar, a reflective sheet and a light guide plate. The reflective sheet is arranged at the back of the light guide plate. The light bar is arranged at the inner side of the frame and faces the light guide plate.

2. The vehicle-mounted liquid crystal display according to claim 1, characterized in that: The cover plate is also pasted with a 3A film and / or a protective film.

3. The vehicle-mounted liquid crystal display according to claim 2, characterized in that: The 3A film is provided with an anti-reflection layer, an anti-glare layer, and an anti-fingerprint pollution layer in sequence from the inside to the outside; the protective film is a PET protective film or a PE protective film.

4. The vehicle-mounted liquid crystal display according to claim 1, characterized in that: An optical adhesive layer is arranged between the liquid crystal screen and the cover plate.

5. The vehicle-mounted liquid crystal display according to claim 1, characterized in that: The light guide plate is also provided with a diffusion film and at least one brightness enhancement film in sequence.

6. The vehicle-mounted liquid crystal display according to claim 1, characterized in that: The cover plate is a transparent plastic plate or glass.

7. The vehicle-mounted liquid crystal display according to claim 1, characterized in that: The frame is a plastic frame, the outer side surface of the back plate is provided with a plurality of buckling blocks, the frame is provided with a plurality of buckling holes, and the buckling holes are buckled in the buckling blocks.

8. The vehicle-mounted liquid crystal display according to claim 1, characterized in that: The corners of the light guide plate are provided with limiting notches, and elastic limiting blocks are provided on the limiting notches.

9. The vehicle-mounted liquid crystal display according to any one of claims 1 to 8, characterized in that: The thickness T1 of the frame is between 5-6 mm, and the thickness T2 of the cover plate is between 0.6-1 mm.

10. An automobile, characterized in that: The vehicle-mounted LCD display comprises any one of claims 1 to 9; the vehicle-mounted LCD display is arranged on a center console.

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