Liquid crystal display screen with prolonged service life

Abstract

The utility model discloses a liquid crystal display screen with prolonged service life, which is used for an automobile column B or a charging pile and comprises a shell and a display screen module, an uvioresistant film is arranged on the upper surface of the shell, shading ink is silk-printed on the lower surface of the uvioresistant film, the display screen module is arranged below the shell, and the display screen module is arranged below the shell. The surface area of the shell is far larger than that of the display screen module, the ultraviolet-resistant film covers a visible area and a non-visible area of the display screen module, and the shading ink covers other areas except the visible area of the display screen module. Sunlight firstly passes through the anti-ultraviolet film during irradiation, so that the ultraviolet transmittance is reduced to about 20%, and a part located in a non-visible area is shielded by the shading ink, so that the light is prevented from directly irradiating the shell, the color change, aging and even deformation of the shell and the shading ink caused by ultraviolet light and high temperature in the sunlight are avoided, and the influence on the appearance of a product is avoided; and the service life of the product is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of liquid crystal display technology, and more specifically, to a liquid crystal display screen with improved service life. Background Technology

[0002] Currently, more and more outdoor products require displays, such as car B-pillar displays and charging stations. However, prolonged exposure to sunlight, especially ultraviolet (UV) radiation, can cause many problems for these displays. For example, UV rays and high temperatures in sunlight can cause plastic or glass casings to discolor, age, or even deform, affecting the product's appearance. Furthermore, prolonged exposure to sunlight can make plastic or glass casings brittle and easily damaged, and the ink on them can also discolor. UV rays in sunlight accelerate the aging of LCD screens, leading to abnormal colors, decreased brightness, and even permanent black spots. For OLED screens, UV rays accelerate the aging of organic materials on the screen, shortening its lifespan. Utility Model Content

[0003] The technical problem this invention aims to solve is how to prevent ultraviolet rays from sunlight from irradiating the outer casing, thus avoiding damage to the outer casing and ink, and improving the product's service life.

[0004] The technical problem to be solved by this utility model is achieved through the following technical solution:

[0005] To address the aforementioned technical problems, this utility model provides a liquid crystal display screen with improved service life, which can be used in car B-pillars or charging piles. It includes a housing and a display module. The upper surface of the housing is provided with an anti-ultraviolet film, and the lower surface of the anti-ultraviolet film is screen-printed with light-shielding ink. The display module is disposed below the housing. The surface area of ​​the housing is much larger than the surface area of ​​the display module. The anti-ultraviolet film covers both the visible and non-visible areas of the display module, and the light-shielding ink covers the areas of the display module other than the visible area.

[0006] In a preferred embodiment of the liquid crystal display screen with improved service life provided by this utility model, the outer shell is a plastic shell or a glass shell.

[0007] In a preferred embodiment of the liquid crystal display screen with improved service life provided by this utility model, the surface area of ​​the outer shell is 5 to 20 times that of the surface area of ​​the display module.

[0008] As a preferred embodiment of the liquid crystal display screen with improved service life provided by this utility model, the display module has an FPC extending outward, the upper surface of the FPC is provided with pads, and both the upper and lower surfaces of the FPC are covered with EMI shielding film, and the EMI shielding film has a clearance position at the pads.

[0009] In a preferred embodiment of the liquid crystal display screen with improved service life provided by this utility model, the edge of the EMI shielding film located at the avoidance position is more than 0.5 mm away from the edge of the pad.

[0010] In a preferred embodiment of the liquid crystal display screen with improved service life provided by this utility model, a PET film is disposed between the FPC and the EMI shielding film, and the edge of the PET film near the clearance position extends beyond the edge of the EMI shielding film.

[0011] In a preferred embodiment of the liquid crystal display screen with improved service life provided by this utility model, the edge of the PET film near the avoidance position extends beyond the edge of the EMI shielding film by more than 0.5 mm.

[0012] As a preferred embodiment of the liquid crystal display screen with improved service life provided by this utility model, the bottom of the PET film is provided with double-sided adhesive.

[0013] As a preferred embodiment of the liquid crystal display screen with improved service life provided by this utility model, the edge of the pad is provided with insulating adhesive.

[0014] In a preferred embodiment of the liquid crystal display screen with improved service life provided by this utility model, the insulating adhesive covers the clearance area.

[0015] This utility model has the following beneficial effects:

[0016] Because the upper surface of the casing is covered with an anti-UV film, and the light-shielding ink is located on the lower surface of the anti-UV film, sunlight first passes through the anti-UV film, reducing the UV transmittance to about 20%. The remaining light in the visible area directly enters the display module, while the light-shielding ink blocks the light in the non-visible area. This prevents light from directly hitting the casing and avoids the UV rays and high temperatures in sunlight from causing discoloration, aging, or even deformation of the casing and the light-shielding ink, thus avoiding affecting the product's appearance. The remaining 20% ​​of UV rays that pass through the casing can also have their transmittance further reduced by the anti-UV structure inside the display module, thereby increasing the product's lifespan. Attached Figure Description

[0017] To more clearly illustrate the solutions in this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This utility model provides a structural schematic diagram of a liquid crystal display screen with an improved service life.

[0019] Figure 2 for Figure 1 A schematic diagram of the structure of the FPC in China.

[0020] Figure 3 for Figure 2 Sectional view at point AA.

[0021] Figure 4 for Figure 3 A schematic diagram of the improved structure.

[0022] Explanation of icon numbers:

[0023] 1. Housing; 2. Display module; 3. Anti-UV film; 4. Light-shielding ink; 5. Glass cover; 6. FPC; 7. Solder pads; 8. EMI shielding film; 9. PET film. Detailed Implementation

[0024] 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.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0026] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0027] This utility model provides a liquid crystal display screen with improved service life, which can be used in car B-pillars or charging piles. It includes a housing and a display module. The upper surface of the housing is provided with an anti-ultraviolet film, and the lower surface of the anti-ultraviolet film is screen-printed with light-shielding ink. The display module is disposed below the housing. The surface area of ​​the housing is much larger than the surface area of ​​the display module. The anti-ultraviolet film covers the visible and non-visible areas of the display module, and the light-shielding ink covers the areas of the display module other than the visible area.

[0028] Because the upper surface of the casing is covered with an anti-UV film, and the light-shielding ink is located on the lower surface of the anti-UV film, sunlight first passes through the anti-UV film, reducing the UV transmittance to about 20%. The remaining light in the visible area directly enters the display module, while the light-shielding ink blocks the light in the non-visible area. This prevents light from directly hitting the casing and avoids the UV rays and high temperatures in sunlight from causing discoloration, aging, or even deformation of the casing and the light-shielding ink, thus avoiding affecting the product's appearance. The remaining 20% ​​of UV rays that pass through the casing can also have their transmittance further reduced by the anti-UV structure inside the display module, thereby increasing the product's lifespan.

[0029] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. The present invention will be described in detail below with reference to the accompanying drawings and embodiments, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0030] Example 1, please refer to Figure 1This invention provides a liquid crystal display screen with improved service life, which is used in car B-pillars or charging piles. It includes a housing 1 and a display module 2. The upper surface of the housing 1 is provided with an anti-ultraviolet film 3, and the lower surface of the anti-ultraviolet film 3 is screen-printed with light-shielding ink 4. The display module 2 is located below the housing 1. The surface area of ​​the housing 1 is much larger than the surface area of ​​the display module 2. The anti-ultraviolet film 3 covers the visible and non-visible areas of the display module 2, and the light-shielding ink 4 covers the other areas of the display module 2 outside the visible area. Because the upper surface of the outer casing 1 is provided with an anti-ultraviolet film 3, and the light-shielding ink 4 is provided on the lower surface of the anti-ultraviolet film 3, when sunlight shines on it, it first passes through the anti-ultraviolet film 3, reducing the ultraviolet transmittance to about 20%. The remaining light in the visible area directly enters the interior of the display module 2, while the light-shielding ink 4 blocks the light in the non-visible area, thus preventing the light from directly shining on the outer casing 1. This prevents the ultraviolet rays and high temperatures in sunlight from causing the outer casing 1 and the light-shielding ink 4 to discolor, age, or even deform, thus avoiding affecting the product's appearance. The remaining 20% ​​of ultraviolet rays that pass through the outer casing 1 can also have their transmittance further reduced by the anti-ultraviolet structure inside the display module 2, thereby improving the product's service life.

[0031] Furthermore, the display module 2 is provided with a glass cover plate 5, and the glass cover plate 5 is also provided with an anti-ultraviolet film 3 to further reduce the transmittance of ultraviolet rays and improve the product's service life.

[0032] Furthermore, the outer casing 1 can be either a plastic casing 1 or a glass casing 1. When the outer casing 1 is a plastic casing 1, it is most affected by sunlight. This structure can significantly improve the service life of the outer casing 1.

[0033] Furthermore, when the product is a car B-pillar, the surface area of ​​the outer shell 1 is 5 to 20 times that of the display module 2. The parts outside the visible area are all provided with light-shielding ink 4, and the outer surface of the outer shell 1 is provided with an anti-ultraviolet film 3, thereby minimizing the transmission of ultraviolet rays and sunlight and improving the service life of the outer shell 1.

[0034] Example 2, please refer to Figures 1 to 4 As a further optimization of Embodiment 1, in this embodiment, the display module 2 extends outward with an FPC 6. The upper surface of the FPC 6 is provided with pads 7, and both the upper and lower surfaces of the FPC 6 are covered with an EMI shielding film 8. The EMI shielding film 8 has clearance positions at the pads 7. Because the upper and lower surfaces of the FPC 6 are both provided with EMI shielding films 8, the electromagnetic shielding capability of the FPC 6 can be significantly improved, enhancing the stability of signal transmission, avoiding various functional problems and poor display effects, and improving the product's competitiveness.

[0035] Furthermore, the edge of the EMI shielding film 8 located in the clearance position is more than 0.5mm away from the edge of the pad 7 to prevent the edge of the EMI shielding film 8 from contacting the pad 7 and causing an open circuit.

[0036] Furthermore, a PET film 9 is placed between the FPC6 and the EMI shielding film 8, with the edge of the PET film 9 near the clearance position extending beyond the edge of the EMI shielding film 8. By extending the edge of the PET film 9 near the pad 7, a certain distance is created between the edge of the PET film 9 and the edge of the EMI shielding film 8. This ensures that even with some operational errors during application, the edge of the EMI shielding film 8 will not touch the edge of the pad 7, thus insulating the edge of the EMI shielding film 8 and preventing short circuits caused by the edge of the EMI shielding film 8 touching the pad 7. This improves application efficiency and production yield.

[0037] Furthermore, the edge of the PET film 9 near the clearance position extends more than 0.5mm beyond the edge of the EMI shielding film 8. This ensures that the edge of the EMI shielding film 8 does not touch the pad 7, thereby insulating the edge of the EMI shielding film 8 and preventing short circuits caused by the edge of the EMI shielding film 8 touching the pad 7, thus improving bonding efficiency and production yield.

[0038] Furthermore, the bottom of the PET film 9 is provided with double-sided adhesive or coated with glue. Since some parts of the PET film 9 are not adhesive or have insufficient adhesiveness, the bottom of the PET film 9 is provided with double-sided adhesive or coated with glue, so that the PET film 9 can adhere to the FPC 6.

[0039] Furthermore, insulating adhesive is provided at the edge of pad 7, and the insulating adhesive covers the clearance area to protect the edge of pad 7.

[0040] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0041] Obviously, the embodiments described above are only some embodiments of this application, not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application. This application 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 application. Although this application 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 application's specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the scope of patent protection of this application.

Claims

1. A liquid crystal display screen with improved service life, characterized in that... This device, used for car B-pillars or charging stations, includes a housing and a display module. The upper surface of the housing is provided with an anti-UV film, and the lower surface of the anti-UV film is screen-printed with light-shielding ink. The display module is located below the housing. The surface area of ​​the housing is much larger than the surface area of ​​the display module. The anti-UV film covers the visible and non-visible areas of the display module, and the light-shielding ink covers the areas of the display module other than the visible area.

2. The liquid crystal display screen with improved service life according to claim 1, characterized in that, The outer casing is either a plastic casing or a glass casing.

3. The liquid crystal display screen with improved service life according to claim 1, characterized in that, The surface area of ​​the outer casing is 5 to 20 times that of the display module.

4. The liquid crystal display screen with improved service life according to claim 1, characterized in that, The display module extends outwards with an FPC. The upper surface of the FPC is provided with pads. Both the upper and lower surfaces of the FPC are covered with an EMI shielding film. The EMI shielding film has a clearance at the pads.

5. The liquid crystal display screen with improved service life according to claim 4, characterized in that, The edge of the EMI shielding film located at the clearance position is more than 0.5 mm away from the edge of the pad.

6. The liquid crystal display screen with improved service life according to claim 4, characterized in that, A PET film is disposed between the FPC and the EMI shielding film, and the edge of the PET film near the clearance position extends beyond the edge of the EMI shielding film.

7. The liquid crystal display screen with improved service life according to claim 6, characterized in that, The edge of the PET film near the clearance position extends more than 0.5 mm beyond the edge of the EMI shielding film.

8. The liquid crystal display screen with improved service life according to claim 6, characterized in that, The bottom of the PET film is provided with double-sided adhesive.

9. The liquid crystal display screen with improved service life according to claim 4, characterized in that, The edges of the pads are covered with insulating adhesive.

10. The liquid crystal display screen with improved service life according to claim 9, characterized in that, The insulating adhesive covers the clearance area.

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