Vehicle-mounted display backlight module capable of reducing temperature rise

Abstract

The utility model provides a vehicle-mounted display backlight module capable of reducing temperature rise, which comprises cover plate glass, a color filter polaroid, color filter glass, thin film transistor glass, a thin film transistor polaroid, a backlight optical film component and a backlight backboard which are sequentially arranged, and the surface of one side of the thin film transistor glass is connected with composite adhesive. According to the backlight module, the heat conduction soaking film and the heat insulation film in the composite adhesive are matched, and the high heat conduction material in the heat conduction part is applied, so that heat can be quickly conducted and dissipated, and the temperature rise of the backlight module is effectively reduced.

Description

Technical Field

[0001] This utility model mainly relates to the technical field of display screens, specifically to a vehicle-mounted display backlight module that reduces temperature rise. Background Technology

[0002] In the field of automotive display technology, the backlight module, as a core component of the liquid crystal display (LCD), is responsible for providing a uniform and stable light source to ensure screen visibility. With the rapid development of intelligent vehicles and electric vehicles, the application scenarios of automotive displays are expanding (such as central control screens, digital instrument clusters, and head-up displays), leading to continuously increasing demands for size, brightness, and resolution. This results in a significant increase in the power consumption and heat generation of the backlight module. However, the automotive environment places stringent requirements on temperature control: on the one hand, the vehicle's interior space is enclosed and heat dissipation is limited, with summer interior temperatures potentially exceeding 70°C; on the other hand, prolonged high-temperature operation of electronic components can lead to luminous efficiency degradation (such as the "light decay" of LED light sources), color distortion, and even material aging and circuit failures, directly impacting driving safety and user experience. Utility Model Content

[0003] This utility model mainly provides a vehicle display backlight module with reduced temperature rise to solve the technical problems mentioned in the background art.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0005] A vehicle-mounted display backlight module with reduced temperature rise includes a cover glass, a color filter polarizer, a color filter glass, a thin-film transistor glass, a thin-film transistor polarizer, a backlight optical film assembly, and a backlight backplate arranged in sequence. A composite adhesive is attached to one side surface of the thin-film transistor glass.

[0006] Furthermore, the cover glass and the color filter polarizer are connected by optical adhesive.

[0007] Furthermore, the thin-film transistor glass protrudes from the color filter glass and the thin-film transistor polarizer, and the protruding portion of the thin-film transistor glass is used to connect with the composite adhesive.

[0008] Furthermore, the composite adhesive includes an integrated circuit connected to the thin-film transistor glass, a thermally conductive heat-dissipating film connected to the integrated circuit, and a heat-insulating film connected to the side of the thermally conductive heat-dissipating film away from the integrated circuit.

[0009] Furthermore, the longitudinal section of the backlight back panel is concave, and the concave surface of the backlight back panel is used to accommodate the backlight optical film assembly.

[0010] Furthermore, a heat-conducting component is connected between the upper surface of the backlight backplate and the protruding area of ​​the thin-film transistor glass.

[0011] Furthermore, the thermally conductive component includes a first thermally conductive copper sheet connected to the thin-film transistor glass, graphene connected to the lower surface of the first thermally conductive copper sheet, and a second thermally conductive copper sheet connected between the graphene and the backlight backplate.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention, through the combination of a thermally conductive and heat-dissipating film and a heat-insulating film in the composite adhesive, and the application of highly thermally conductive materials in the thermally conductive components, can quickly conduct and dissipate heat, effectively reducing the temperature rise of the backlight module and minimizing the impact of excessively high temperatures on display performance and module lifespan.

[0014] Secondly, this invention helps maintain the performance stability of each layer of optical components through a stable temperature environment, reducing problems such as uneven brightness and color deviation, thereby improving the quality of in-vehicle displays.

[0015] Thirdly, the protruding design of the thin-film transistor glass in this utility model facilitates the installation of the composite adhesive. The concave structure of the backlight backplate protects the backlight optical film assembly and increases the heat dissipation area. The overall structural design is reasonable and improves the reliability and stability of the module.

[0016] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the heat-conducting component of this utility model.

[0019] In the figure: 1. Cover glass; 2. Color filter polarizer; 3. Color filter glass; 4. Thin-film transistor glass; 5. Thin-film transistor polarizer; 6. Backlight optical film assembly; 7. Backlight backplate; 8. Optical adhesive; 9. Composite adhesive; 91. Integrated circuit; 92. Thermally conductive and heat-dissipating film; 93. Heat insulation film; 10. Thermally conductive component; 11. First thermally conductive copper sheet; 12. Graphene; 13. Second thermally conductive copper sheet. Detailed Implementation

[0020] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] This application provides an automotive display backlight module with reduced temperature rise, as illustrated in the schematic diagram below. Figure 1-2 As shown. The vehicle display backlight module with reduced temperature rise includes a cover glass 1, a color filter polarizer 2, a color filter glass 3, a thin film transistor glass 4, a thin film transistor polarizer 5, a backlight optical film assembly 6, and a backlight backplate 7 arranged in sequence. A composite adhesive 9 is attached to one side surface of the thin film transistor glass 4.

[0024] It should be noted that in this embodiment, the thin-film transistor glass 4 is connected to the composite adhesive 9, which provides a basis for reducing the temperature rise of the module. The composite adhesive 9 can, to a certain extent, handle the heat generated by the thin-film transistor glass 4, such as through conduction and heat insulation, which helps to control the temperature of the module and extend its service life.

[0025] Optionally, such as Figure 1 and Figure 2 As shown, the cover glass 1 and the color filter polarizer 2 are connected by optical adhesive 8.

[0026] In this embodiment, the optical adhesive 8 has good optical transparency and bonding performance, which can tightly bond the cover glass 1 and the color filter polarizer 2, reduce the air gap between the two, reduce light reflection and scattering, and improve light transmittance, thereby improving the display clarity and color performance of the entire backlight module.

[0027] Optionally, such as Figure 1 and Figure 2 As shown, the thin-film transistor glass 4 protrudes from the color filter glass 3 and the thin-film transistor polarizer 5, and the protruding part of the thin-film transistor glass 4 is used to connect with the composite adhesive 9.

[0028] In this embodiment, the protruding design of the thin-film transistor glass 4 provides dedicated space for the installation of the composite adhesive 9, allowing the composite adhesive 9 to make more effective contact with the thin-film transistor glass 4, thereby better performing its heat dissipation and heat insulation functions. This design can avoid interference between the composite adhesive 9 and other components, improving heat dissipation efficiency.

[0029] Optionally, such as Figure 1 and Figure 2 As shown, the composite adhesive 9 includes an integrated circuit 91 connected to the thin-film transistor glass 4, a thermally conductive and heat-dissipating film 92 connected to the integrated circuit 91, and a heat-insulating film 93 connected to the side of the thermally conductive and heat-dissipating film 92 away from the integrated circuit 91.

[0030] In this embodiment, the thermally conductive heat-dissipating film 92 has good thermal conductivity, which can quickly and evenly conduct the heat generated by the integrated circuit 91, avoid heat accumulation in local areas, reduce the operating temperature of the integrated circuit 91, and improve its performance and stability.

[0031] Optionally, such as Figure 1 and Figure 2 As shown, the longitudinal section of the backlight backplate 7 is concave, and the concave surface of the backlight backplate 7 is used to accommodate the backlight optical film assembly 6.

[0032] In this embodiment, the U-shaped backlight backplate 7 can provide a relatively enclosed and safe space for the backlight optical film assembly 6, preventing external dust, moisture and other impurities from entering, protecting the backlight optical film assembly 6 from damage and extending its service life.

[0033] Optionally, such as Figure 1 and Figure 2 As shown, a heat-conducting component 10 is connected between the upper surface of the backlight backplate 7 and the protruding area of ​​the thin-film transistor glass 4.

[0034] In this embodiment, the heat-conducting component 10 establishes an efficient heat conduction channel between the thin-film transistor glass 4 and the backlight backplate 7, which can quickly transfer the heat generated by the thin-film transistor glass 4 to the backlight backplate 7, and then dissipate it through the backlight backplate 7, effectively reducing the temperature of the thin-film transistor glass 4 and improving the heat dissipation performance of the entire backlight module.

[0035] Optionally, such as Figure 1 and Figure 2As shown, the thermally conductive component 10 includes a first thermally conductive copper sheet 11 connected to the thin-film transistor glass 4, a graphene 12 connected to the lower surface of the first thermally conductive copper sheet 11, and a second thermally conductive copper sheet 13 connected between the graphene 12 and the backlight backplate 7.

[0036] In this embodiment, the thermally conductive copper sheet has excellent thermal conductivity and can quickly conduct heat. Graphene, as a novel high thermal conductivity material, has extremely high thermal conductivity and can greatly enhance the thermal conductivity of the thermally conductive component 10. The thermally conductive component 10 formed by the combination of these three materials can efficiently transfer the heat generated by the thin-film transistor glass 4 to the backlight backplate 7, significantly reducing the temperature rise of the module.

[0037] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A vehicle-mounted display backlight module with reduced temperature rise, characterized in that, The assembly includes a cover glass (1), a color filter polarizer (2), a color filter glass (3), a thin film transistor glass (4), a thin film transistor polarizer (5), a backlight optical film assembly (6), and a backlight backplate (7), arranged in sequence. A composite adhesive (9) is attached to one side surface of the thin film transistor glass (4).

2. The vehicle-mounted display backlight module with reduced temperature rise according to claim 1, characterized in that, The cover glass (1) and the color filter polarizer (2) are connected by optical adhesive (8).

3. The vehicle-mounted display backlight module with reduced temperature rise according to claim 1, characterized in that, The thin-film transistor glass (4) protrudes from the color filter glass (3) and the thin-film transistor polarizer (5), and the protruding part of the thin-film transistor glass (4) is used to connect with the composite adhesive (9).

4. The vehicle-mounted display backlight module with reduced temperature rise according to claim 1, characterized in that, The composite adhesive (9) includes an integrated circuit (91) connected to the thin-film transistor glass (4), a thermally conductive heat-dissipating film (92) connected to the integrated circuit (91), and a heat-insulating film (93) connected to the side of the thermally conductive heat-dissipating film (92) away from the integrated circuit (91).

5. The vehicle-mounted display backlight module with reduced temperature rise according to claim 1, characterized in that, The longitudinal section of the backlight backplate (7) is concave, and the concave surface of the backlight backplate (7) is used to accommodate the backlight optical film assembly (6).

6. The vehicle-mounted display backlight module with reduced temperature rise according to claim 1, characterized in that, A heat-conducting component (10) is connected between the upper surface of the backlight backplate (7) and the protruding area of ​​the thin-film transistor glass (4).

7. The vehicle-mounted display backlight module with reduced temperature rise according to claim 6, characterized in that, The thermally conductive component (10) includes a first thermally conductive copper sheet (11) connected to the thin-film transistor glass (4), a graphene (12) connected to the lower surface of the first thermally conductive copper sheet (11), and a second thermally conductive copper sheet (13) connected between the graphene (12) and the backlight backplate (7).

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