Vehicle-mounted display module with heat dissipation structure

Abstract

The embodiment of the utility model belongs to the technical field of display modules. The utility model further relates to a vehicle-mounted display module with the heat dissipation structure, the vehicle-mounted display module comprises a TFT display assembly and a backlight metal frame arranged on one side of the TFT display assembly, the side, close to the TFT display assembly, of the backlight metal frame is provided with a metal frame bending end, the TFT display assembly is provided with an IC body, and the IC body is provided with a heat dissipation structure. Heat-conducting silicone grease is arranged between the TFT display assembly and the bent end of the metal frame, and the position of the heat-conducting silicone grease corresponds to the position of the IC body. Through the backlight metal frame, the metal frame bending end and the heat-conducting silicone grease, after heat of the IC main body is transmitted to the TFT display assembly, the heat is transmitted to the backlight metal frame through the heat-conducting silicone grease and the groove so as to be dissipated through the backlight metal frame, and then heat dissipation is achieved, so that the temperature of the IC main body is effectively reduced, display abnormity is reduced, and the display effect is improved. And the heat dissipation performance and the stability of the vehicle-mounted module are also improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to display module technical field more specifically, relate to a kind of vehicle-mounted display module with heat dissipation structure. BACKGROUND

[0002] In the existing vehicle-mounted module design structure, the integration and heat dissipation problem of backlight module and TFT (Thin Film Transistor) and other key accessories have been concerned, specifically, backlight module is usually composed of light shielding bubble cotton, glue frame and aluminum alloy frame and other multiple components, these components work together to ensure the normal operation of vehicle-mounted display screen;When TFT and backlight module are assembled, FPC (Flexible Printed Circuit Board) is usually bent to adapt to the layout requirements of the back of module;

[0003] Such design meets the requirement of compact structure to some extent, but also brings the challenge of heat dissipation, especially the IC (Integrated Circuit) part on TFT, as it will generate a lot of heat in the working process, so the heat dissipation problem is particularly prominent, with the extension of vehicle-mounted display screen using time, especially in the case of long time screen lighting, the temperature near IC will rise sharply, which not only affects the normal work of IC, but also may cause abnormality in surrounding display area, such as redness, blackness and other phenomena. Therefore, we improve it and propose a kind of vehicle-mounted display module with heat dissipation structure. CONTENT OF UTILITY MODEL

[0004] The technical problem to be solved by the embodiment of the utility model is that the temperature near IC will rise sharply, which affects the normal work of IC and may cause abnormality in surrounding display area.

[0005] In order to solve the above technical problem, the utility model adopts the technical scheme as follows:

[0006] A kind of vehicle-mounted display module with heat dissipation structure, comprising: TFT display component and the backlight metal frame of TFT display component one side setting, the side of the backlight metal frame close to TFT display component is provided with metal frame bending end, IC main body is provided on the TFT display component, heat-conducting silicone grease is arranged between TFT display component and metal frame bending end, the position of heat-conducting silicone grease corresponds with the position of IC main body. The heat of IC main body is transferred to TFT display component by the setting of backlight metal frame, metal frame bending end and heat-conducting silicone grease, and then the heat is transferred to backlight metal frame through heat-conducting silicone grease and groove to dissipate through backlight metal frame, thereby realizing heat dissipation, which not only effectively reduces the temperature of IC main body, reduces the occurrence of display abnormality, but also improves the heat dissipation performance and stability of vehicle-mounted module.

[0007] As an improved mode of the utility model, the metal frame bending end and the backlight metal frame are integrally arranged.

[0008] As an improved mode of the utility model, the metal frame bending end is provided with a groove, and the side of the heat-conducting silicone grease away from the TFT display assembly is located in the groove.

[0009] As an improved mode of the utility model, the metal frame bending end and the TFT display assembly are provided with light-shielding foam.

[0010] As an improved mode of the utility model, the TFT display assembly comprises a lower glass, and the IC main body and the heat-conducting silicone grease are arranged on the lower glass.

[0011] As an improved mode of the utility model, the side of the lower glass close to the light-shielding foam is provided with a lower polarizer, and the lower polarizer is connected with the light-shielding foam.

[0012] As an improved mode of the utility model, the side of the lower glass away from the lower polarizer is provided with an upper glass, and the side of the upper glass away from the lower glass is provided with an upper polarizer.

[0013] As an improved mode of the utility model, the main screen FPC is bound on the lower glass, and one end of the main screen FPC away from the lower glass is bent on the back of the backlight metal frame.

[0014] As an improved mode of the utility model, the side of the IC main body away from the lower glass is attached with a graphite sheet, and the graphite sheet is bent and attached on the back of the backlight metal frame.

[0015] As an improved mode of the utility model, the backlight metal frame is provided with a light guide plate, the side of the light guide plate close to the TFT display assembly is provided with a functional film layer, and the side of the light guide plate away from the functional film layer is provided with a reflecting film.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] In order to solve the problem that the temperature near the IC in the prior art rises sharply, the normal work of the IC is affected, and the surrounding display area may be abnormal, the utility model is provided with the backlight metal frame, the metal frame bending end and the heat-conducting silicone grease, the heat of the IC main body is transmitted to the TFT display assembly, the heat is transmitted to the backlight metal frame through the heat-conducting silicone grease and the groove to be dissipated through the backlight metal frame, thereby realizing heat dissipation, which not only effectively reduces the temperature of the IC main body, reduces the occurrence of display abnormality, but also improves the heat dissipation performance and stability of the vehicle-mounted module. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1Structure schematic view of vehicle-mounted display module with heat dissipation structure provided in the present application;

[0019] Figure 2 Structure schematic view of backlight metal frame and metal frame bending end of vehicle-mounted display module with heat dissipation structure provided in the present application;

[0020] Figure 3 Structure schematic view of recess of vehicle-mounted display module with heat dissipation structure provided in the present application;

[0021] Figure 4 Structure schematic view of graphite sheet of vehicle-mounted display module with heat dissipation structure provided in the present application.

[0022] Indicated in the figure:

[0023] 1, TFT display assembly; 101, upper polarizer; 102, lower polarizer; 103, lower glass; 104, upper glass; 2, backlight metal frame; 201, metal frame bending end; 202, heat-conducting silicone grease; 203, recess; 3, light guide plate; 301, reflective film; 5, light shielding bubble cotton; 6, main screen FPC; 7, graphite sheet; 8, IC main body. DETAILED DESCRIPTION

[0024] 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 application belongs; the terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting upon the application. Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase "in an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily all directed to the same embodiment, or to one or more of the other embodiments. It is expressly understood that any of the embodiments described herein can be combined with any of the other embodiments.

[0025] As described in the background, the backlight module is usually composed of multiple components such as light shielding bubble cotton, glue frame, aluminum alloy frame and the like, which work together to ensure the normal operation of the vehicle display screen; after the TFT and the backlight module are assembled, the FPC (flexible printed circuit board) is usually subjected to bending treatment to adapt to the layout requirements of the back of the module; such design, although meeting the requirement of compact structure to some extent, brings challenges in heat dissipation, especially for the IC (integrated circuit) part on the TFT, since a large amount of heat is generated during the operation of the IC, the heat dissipation problem is particularly prominent; with the extension of the use time of the vehicle display screen, especially in the case of long-time screen lighting, the temperature near the IC will rise sharply, which not only affects the normal operation of the IC, but also may cause abnormality in the surrounding display area, such as redness, blackness and the like.

[0026] To solve the technical problem, the utility model provides a vehicle display module with a heat dissipation structure.

[0027] Specifically, please refer to Figures 1-4 The vehicle display module with a heat dissipation structure specifically comprises:

[0028] A TFT display assembly 1 and a backlight metal frame 2 arranged on one side of the TFT display assembly 1, the backlight metal frame 2 is provided with a metal frame bending end 201 on the side close to the TFT display assembly 1, the TFT display assembly 1 is provided with an IC main body 8, and the TFT display assembly 1 and the metal frame bending end 201 are provided with a heat-conducting silicone grease 202, the position of the heat-conducting silicone grease 202 corresponds to the position of the IC main body 8.

[0029] The vehicle display module with a heat dissipation structure provided by the utility model, after the heat of the IC main body 8 is transferred to the TFT display assembly 1, the heat is transferred to the backlight metal frame 2 through the heat-conducting silicone grease 202 and the groove 203 to be dissipated through the backlight metal frame 2, thereby realizing heat dissipation, which not only effectively reduces the temperature of the IC main body 8 and reduces the occurrence of display abnormality, but also improves the heat dissipation performance and stability of the vehicle module.

[0030] In order to enable the personnel in the technical field to better understand the utility model scheme, the technical scheme in the embodiment of the utility model will be clearly and completely described below in combination with the drawings.

[0031] It should be noted that the embodiments in the utility model and the features and technical schemes in the embodiments can be combined with each other without conflict.

[0032] It should be noted that like reference numerals and characters refer to like items throughout the several views, and once an item is defined in one view, it should not require further defining and explaining in subsequent views.

[0033] Embodiment one of the vehicle-mounted display module with the heat dissipation structure

[0034] Please refer to Figures 1-4 The vehicle-mounted display module with the heat dissipation structure comprises a TFT display assembly 1 and a backlight metal frame 2 arranged on one side of the TFT display assembly 1, the backlight metal frame 2 is provided with a metal frame bending end 201 on the side close to the TFT display assembly 1, the TFT display assembly 1 is provided with an IC main body 8, and the TFT display assembly 1 and the metal frame bending end 201 are provided with heat-conducting silicone grease 202, the position of the heat-conducting silicone grease 202 corresponds to the position of the IC main body 8; the heat of the IC main body 8 is transmitted to the TFT display assembly 1, and the heat is transmitted to the backlight metal frame 2 through the heat-conducting silicone grease 202 and the groove 203 to be dissipated through the backlight metal frame 2, thereby realizing heat dissipation, which not only effectively reduces the temperature of the IC main body 8 and reduces the occurrence of display abnormalities, but also improves the heat dissipation performance and stability of the vehicle-mounted module.

[0035] The IC main body 8 is a core control component of the vehicle-mounted display module, and a large amount of heat is generated during work, the heat-conducting silicone grease 202 has good heat conductivity, can efficiently transmit the heat transmitted by the IC main body 8 to the metal frame bending end 201 on the TFT display assembly 1, and then conduct the heat to the backlight metal frame 2 through the metal frame bending end 202, the backlight metal frame 2 has a large heat dissipation area and can quickly dissipate the heat to the surrounding environment, thereby forming an effective heat dissipation path and ensuring timely dissipation of the heat.

[0036] Further, the metal frame bending end 201 and the backlight metal frame 2 are integrally arranged, and the metal frame bending end 201 and the backlight metal frame 2 can be made of aluminum alloy; the integral arrangement eliminates the connection gap and contact thermal resistance between the metal frame bending end 201 and the backlight metal frame 2, so that the heat can be more smoothly transmitted from the metal frame bending end 201 to the backlight metal frame 2, and the overall heat dissipation efficiency is improved; the aluminum alloy has excellent heat conductivity and a high heat conductivity coefficient, can quickly conduct and dissipate the absorbed heat, and the use of the aluminum alloy to make the metal frame bending end 201 and the backlight metal frame 2 can fully exert the heat conduction advantage, so that the heat generated by the IC main body 8 is rapidly diffused to the surrounding environment, and the temperature of the IC main body and the entire display module is further reduced.

[0037] Further, as shown in Figures 1-3As shown in the drawings, the metal frame bent end 201 is provided with a groove 203, and the heat-conducting silicone grease 202 is located in the groove 203 away from one side of the TFT display assembly 1, and the groove 203 can reduce the overflow of the heat-conducting silicone grease 202.

[0038] The overflow of the heat-conducting silicone grease 202 can cause contact with other electronic elements, resulting in short circuit or other faults, affecting the normal work of the display module, and the groove 203 provides a limiting space for the heat-conducting silicone grease 202, effectively reducing the overflow of the heat-conducting silicone grease 202 and ensuring the stability and reliability of the heat dissipation structure.

[0039] Further, as shown in the drawings, Figure 1 The metal frame bent end 201 and the TFT display assembly 1 are provided with light shielding foam 5, which can further block the heat-conducting silicone grease 202 and reduce the overflow of the heat-conducting silicone grease 202 to the viewing area of the TFT display assembly 1; the viewing area of the TFT display assembly 1 is a key area of the display picture, and if it is contaminated by the heat-conducting silicone grease 202, obvious stains or spots will appear, which will seriously affect the clarity and color accuracy of the display and reduce the display quality.

[0040] The utility model discloses a vehicle-mounted display module with heat dissipation structure's embodiment two

[0041] The utility model discloses a vehicle-mounted display module with heat dissipation structure further, as shown in the drawings, Figure 1 The TFT display assembly 1 includes a lower glass 103, and the IC main body 8 and the heat-conducting silicone grease 202 are arranged on the lower glass 103, so that the heat of the IC main body 8 can be transmitted to the heat-conducting silicone grease 202 through the lower glass 103, the lower glass 103 has certain heat conduction performance and can effectively conduct heat, and at the same time, it has high surface flatness and can provide good contact conditions for the IC main body 8 and the heat-conducting silicone grease 202, the heat generated by the IC main body 8 is transmitted to the lower glass 103 through heat conduction, and then transmitted to the heat-conducting silicone grease 202 through the lower glass 103, forming a heat transmission path.

[0042] Further, as shown in the drawings, Figure 1 The lower glass 103 is provided with a lower polarizing plate 102 on the side close to the light shielding foam 5, and the lower polarizing plate 102 is connected with the light shielding foam 5, and the working principle of the lower polarizing plate 102 is based on the characteristics of polarized light, which can selectively transmit light of a specific direction, and the light shielding foam 5 can block light leakage, and the combination of the two can effectively reduce the influence of external light on the display picture.

[0043] Further, as shown in the drawings, Figure 1As shown, the lower glass sheet 103 is provided with the upper glass sheet 104 away from one side of the lower polarizer 102, and the upper glass sheet 104 is provided with the upper polarizer 101 away from one side of the lower glass sheet 103.

[0044] The third embodiment of the vehicle-mounted display module with the heat dissipation structure

[0045] The third embodiment of the vehicle-mounted display module with the heat dissipation structure Figure 1 and Figure 4 As shown, the lower glass sheet 103 is provided with the upper glass sheet 104 away from one side of the lower polarizer 102, and the upper glass sheet 104 is provided with the upper polarizer 101 away from one side of the lower glass sheet 103.

[0046] The third embodiment of the vehicle-mounted display module with the heat dissipation structure Figure 1 As shown, the lower glass sheet 103 is provided with the upper glass sheet 104 away from one side of the lower polarizer 102, and the upper glass sheet 104 is provided with the upper polarizer 101 away from one side of the lower glass sheet 103.

[0047] The third embodiment of the vehicle-mounted display module with the heat dissipation structure Figure 1 As shown, the lower glass sheet 103 is provided with the upper glass sheet 104 away from one side of the lower polarizer 102, and the upper glass sheet 104 is provided with the upper polarizer 101 away from one side of the lower glass sheet 103.

[0048] Obviously, the above-described embodiments are only a part of the embodiments of the present application, rather than all the embodiments, and the preferred embodiments of the present application are given in the drawings, but do not limit the patent scope of the present application. The present application can be realized in many different forms, and conversely, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing specific embodiments, or equivalently replace some of the technical features. Any equivalent structure made by using the content of the present application specification and drawings, directly or indirectly used in other related technical fields, is also within the patent protection scope of the present application.

Claims

1. A vehicle-mounted display module with a heat dissipation structure, characterized in that, The application relates to a TFT display assembly (1) and a backlight metal frame (2) arranged on one side of the TFT display assembly (1), wherein the backlight metal frame (2) is provided with a metal frame bending end (201) on the side close to the TFT display assembly (1), the TFT display assembly (1) is provided with an IC main body (8), and heat-conducting silicone grease (202) is arranged between the TFT display assembly (1) and the metal frame bending end (201), and the position of the heat-conducting silicone grease (202) corresponds to the position of the IC main body (8). The metal frame bending end (201) and the backlight metal frame (2) are integrally arranged.

2. The vehicle-mounted display module with heat dissipation structure according to claim 1, characterized in that, The metal frame bending end (201) is provided with a groove (203), and the side, away from the TFT display assembly (1), of the heat-conducting silicone grease (202) is located in the groove (203). 3.The vehicle-mounted display module with a heat dissipation structure according to claim 1 or 2, characterized in that, The metal frame bending end (201) and the TFT display assembly (1) are provided with light-shielding bubble cotton (5).

4. The vehicle-mounted display module with heat dissipation structure according to claim 3, characterized in that, The TFT display assembly (1) comprises a lower glass sheet (103), and the IC main body (8) and the heat-conducting silicone grease (202) are arranged on the lower glass sheet (103).

5. The vehicle-mounted display module with heat dissipation structure according to claim 4, characterized in that, The side, close to the light-shielding bubble cotton (5), of the lower glass sheet (103) is provided with a lower polaroid (102), and the lower polaroid (102) is connected with the light-shielding bubble cotton (5).

6. The vehicle-mounted display module with heat dissipation structure according to claim 5, characterized in that, The side, away from the lower polaroid (102), of the lower glass sheet (103) is provided with an upper glass sheet (104), and the side, away from the lower glass sheet (103), of the upper glass sheet (104) is provided with an upper polaroid (101).

7. The vehicle-mounted display module with heat dissipation structure according to claim 6, characterized in that, The lower glass sheet (103) is bound with a main screen FPC (6), and the end, away from the lower glass sheet (103), of the main screen FPC (6) is bent on the back of the backlight metal frame (2). 8.The vehicle-mounted display module with a heat dissipation structure of claim 5, wherein, The side, away from the lower glass sheet (103), of the IC main body (8) is attached with a graphite sheet (7), and the graphite sheet (7) is bent and attached on the back of the backlight metal frame (2). 9.The vehicle-mounted display module with a heat dissipation structure according to claim 5 or 8, characterized in that, The backlight metal frame (2) is provided with a light guide plate (3), the side, close to the TFT display assembly (1), of the light guide plate (3) is provided with a functional film layer, and the side, away from the functional film layer, of the light guide plate (3) is provided with a reflecting film (301). 10.The vehicle-mounted display module with a heat dissipation structure of claim 1, wherein, ​

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