Heat insulation structure between display screen and backlight

Abstract

The utility model discloses a heat insulation structure between a display screen and backlight, which comprises a display module body, the display module body comprises a display screen and a backlight module, an LED lamp is arranged in the backlight module, and a heat insulation film used for isolating heat of the LED lamp from being transmitted to the surface of the display screen is arranged between the display screen and the backlight module. The heat insulation structure has the effect that heat of the LED lamp is prevented from being transmitted to the surface of the display screen, and therefore the use feeling of a user is prevented from being affected.

Description

Technical Field

[0001] The utility model relates to the technical field of display modules, in particular to a heat insulation structure between a display screen and a backlight. Background Art

[0002] Liquid crystal display devices are widely used in various information, communication and consumer electronic products. Liquid crystal display modules are mainly composed of a liquid crystal display screen and a backlight module.

[0003] In the prior art, an LED lamp is arranged in the backlight module to provide a light source for the display screen. The LED generates heat when emitting light, causing serious heat generation on the side of the backlight module close to the LED. The heat is transferred from the backlight module to the surface of the display screen. After long-term use, the user will feel the high temperature when touching the surface of the display screen, thus affecting the user experience. Utility Model Content

[0004] The utility model aims to overcome the shortcomings of the prior art and provide a heat insulation structure between a display screen and a backlight.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] A heat insulation structure between a display screen and a backlight comprises: a display module body, wherein the display module body comprises a display screen and a backlight module, wherein an LED lamp is arranged in the backlight module, and a heat insulation film is arranged between the display screen and the backlight module for isolating the heat of the LED lamp from being transferred to the surface of the display screen.

[0007] In one embodiment, the backlight module includes a middle iron frame and a rear iron frame, the middle iron frame and the rear iron frame are assembled to form the concave backlight module, the LED lamp is located between the middle iron frame and the rear iron frame, and the heat insulation film is located between the middle iron frame and the display screen.

[0008] In one embodiment, the heat insulation film is located on a side of the middle iron frame away from the LED lamp, and the heat insulation film is adhered to a side of the middle iron frame facing the display screen.

[0009] In one embodiment, the height of the thermal insulation film is greater than the height of the LED lamp.

[0010] In one embodiment, the thermal insulation film is arranged along the length direction of the middle iron frame, and the length of the thermal insulation film is adapted to the length of the middle iron frame.

[0011] In one embodiment, the thermal insulation film includes a black PET tape, a heat-leveling layer, an aerogel polymer closed-cell foam layer and a thermally conductive adhesive arranged in sequence, the thermally conductive adhesive is used to be adhered to the middle iron frame, the heat-leveling layer and the aerogel polymer closed-cell foam layer are used for heat insulation, and the black PET tape is used for heat absorption.

[0012] In one embodiment, a foam double-sided adhesive is provided between the display screen and the backlight module for bonding, the foam double-sided adhesive is located between the display screen and the middle iron frame, and the heat insulation film is located below the foam double-sided adhesive.

[0013] In one embodiment, the thickness of the double-sided adhesive foam is 0.5 mm, and the thickness of the thermal insulation film is 0.5 mm-0.79 mm.

[0014] In one embodiment, the display screen consists of a display area and a non-display area, the thermal insulation film is relatively arranged in the non-display area, and the thermal insulation film is arranged at a certain distance from the display area.

[0015] In one embodiment, the thermal insulation film is 0.2 mm-0.3 mm away from the outer edge of the display area.

[0016] Compared with the prior art, the utility model has at least the following advantages:

[0017] The utility model provides a heat insulation structure between a display screen and a backlight by arranging a heat insulation film between the display screen and the backlight module, and the heat insulation film is arranged relative to the position of the LED lamp. The heat insulation film can absorb the heat generated by the LED lamp and insulate the heat to prevent the heat from being further transferred to the surface of the display screen, so as to avoid causing a bad usage experience to the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below.

[0019] Figure 1 A schematic diagram of the front structure of a heat insulation structure between a display screen and a backlight provided by the utility model;

[0020] Figure 2 A schematic diagram of a side cross-sectional structure of a heat insulation structure between a display screen and a backlight provided by the utility model;

[0021] Figure 3 The utility model provides a schematic structural diagram of a heat-insulating film in a heat-insulating structure between a display screen and a backlight.

[0022] Description of the drawings: 10. Display module body; 20. Display screen; 21. Display area; 22. Non-display area; 30. Backlight module; 31. Middle iron frame; 32. Rear iron frame; 40. Double-sided adhesive foam; 50. LED light; 60. Heat insulation film; 61. Black PET tape; 62. Heat uniforming layer; 63. Aerogel polymer closed-cell foam layer; 64. Thermal conductive adhesive. DETAILED DESCRIPTION

[0023] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings.

[0024] A heat insulation structure between a display screen and a backlight, referring to Figure 1 and Figure 2 , including a display module body 10, the display module body 10 includes a display screen 20 and a backlight module 30 arranged in sequence, the display screen 20 and the backlight module 30 are attached to each other, and a foam double-sided adhesive 40 for pasting is arranged between the display screen 20 and the backlight module 30.

[0025] Reference Figure 2 The backlight module 30 includes a middle iron frame 31 and a rear iron frame 32. The middle iron frame 31 is hollow in a rectangular shape, and one side of the rear iron frame 32 is open. The middle iron frame 31 and the rear iron frame 32 are assembled with each other to form a concave backlight module 30. The side of the middle iron frame 31 away from the rear iron frame 32 contacts the display screen 20.

[0026] Reference Figure 2 A light guide plate is arranged between the middle iron frame 31 and the rear iron frame 32, and the light guide plate is arranged along the length direction of the rear iron frame 32. An LED lamp 50 is arranged on the light incident surface of the light guide plate. The LED lamp 50 is located directly below the light guide plate, and the LED lamp 50 is limited to between the middle iron frame 31 and the rear iron frame 32.

[0027] Reference Figure 1 and Figure 2 A heat insulation film 60 is arranged between the display screen 20 and the backlight module 30 to isolate the heat of the LED lamp 50 from being transferred to the surface of the display screen 20. The heat insulation film 60 is located on the side of the middle iron frame 31 facing the display screen 20. The heat insulation film 60 is arranged along the length direction of the middle iron frame 31. The length of the heat insulation film 60 is adapted to the length of the middle iron frame 31. The left and right ends of the heat insulation film 60 are respectively flush with the two outer edges of the middle iron frame 31.

[0028] Reference Figure 1 and Figure 2 The heat insulation film 60 is located on one side of the middle iron frame 31 corresponding to the position of the LED lamp 50 , and the height of the heat insulation film 60 is greater than the height of the LED lamp 50 to insulate the heat emitted by the LED lamp 50 .

[0029] Reference Figure 3The heat-insulating film 60 includes a black PET tape 61, a heat-leveling layer 62, an aerogel polymer closed-cell foam layer 63, and a heat-conducting adhesive 64, which are arranged in sequence. The side of the heat-insulating film 60 with the heat-conducting adhesive 64 is attached to the middle iron frame 31. The heat-conducting adhesive 64 is used to transfer the heat of the LED lamp 50 to the heat-insulating film 60. The heat-leveling layer 62 and the aerogel polymer closed-cell foam layer 63 are heat-insulating materials to insulate the heat, and the black PET tape 61 has a heat-absorbing effect. When the LED lamp 50 generates heat during use and transfers it to the middle iron frame 31, the heat is absorbed and insulated by the heat-insulating film 60, preventing the heat from being further transferred to the display screen 20 and the surface of the display screen 20.

[0030] Reference Figure 1 and Figure 2 The foam double-sided adhesive 40 is located between the display screen 20 and the middle iron frame 31, and the thermal insulation film 60 is located below the foam double-sided adhesive 40. The thickness range of the thermal insulation film 60 is within the distance between the display screen 20 and the middle iron frame 31. The thickness of the foam double-sided adhesive 40 is 0.5mm, and the thickness of the thermal insulation film 60 is 0.5mm-0.79mm.

[0031] Reference Figure 1 The display screen 20 is composed of a display area 21 and a non-display area 22. The display area 21 is the area where the display screen 20 displays content, and the non-display area 22 is the frame area of ​​the display screen 20. The thermal insulation film 60 is relatively arranged in the non-display area 22 of the display screen 20, and the upper end of the thermal insulation film 60 is arranged at a certain distance from the display area 21 to prevent the thermal insulation film 60 from affecting the normal display of the display screen 20.

[0032] Further, refer to Figure 1 The heat insulation film 60 is 0.2 mm-0.3 mm away from the outer edge of the display area 21 .

[0033] Reference Figure 1 and Figure 2 By setting the heat insulation film 60 between the display screen 20 and the backlight module 30, and the heat insulation film 60 is set relative to the position of the LED lamp 50, the heat insulation film 60 can absorb the heat generated by the LED lamp 50 and insulate the heat, preventing the heat from being further transferred to the surface of the display screen 20, so as to avoid causing a bad usage experience to the user.

[0034] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A heat insulation structure between a display screen and a backlight, characterized in that: include: A display module body (10), the display module body (10) comprising a display screen (20) and a backlight module (30), an LED lamp (50) being arranged in the backlight module (30), and a heat insulation film (60) being arranged between the display screen (20) and the backlight module (30) for isolating the heat of the LED lamp (50) from being transferred to the surface of the display screen (20).

2. The heat insulation structure between a display screen and a backlight according to claim 1, characterized in that: The backlight module (30) comprises a middle iron frame (31) and a rear iron frame (32), wherein the middle iron frame (31) and the rear iron frame (32) are assembled to form the concave backlight module (30), the LED lamp (50) is located between the middle iron frame (31) and the rear iron frame (32), and the heat insulation film (60) is located between the middle iron frame (31) and the display screen (20).

3. The heat insulation structure between a display screen and a backlight according to claim 2, characterized in that: The heat insulation film (60) is located on a side of the middle iron frame (31) away from the LED lamp (50), and the heat insulation film (60) is adhered to a side of the middle iron frame (31) facing the display screen (20).

4. The heat insulation structure between a display screen and a backlight according to claim 3, characterized in that: The height of the heat insulation film (60) is greater than the height of the LED lamp (50).

5. The heat insulation structure between a display screen and a backlight according to claim 4, characterized in that: The heat insulation film (60) is arranged along the length direction of the middle iron frame (31), and the length of the heat insulation film (60) is adapted to the length of the middle iron frame (31).

6. The heat insulation structure between a display screen and a backlight according to claim 5, characterized in that: The thermal insulation film (60) comprises a black PET tape (61), a heat-leveling layer (62), an aerogel polymer closed-cell foam layer (63) and a heat-conducting adhesive (64) which are arranged in sequence. The heat-conducting adhesive (64) is used for being adhered to the middle iron frame (31). The heat-leveling layer (62) and the aerogel polymer closed-cell foam layer (63) are used for heat insulation. The black PET tape (61) is used for absorbing heat.

7. The heat insulation structure between a display screen and a backlight according to claim 6, characterized in that: A foam double-sided adhesive tape (40) for bonding is provided between the display screen (20) and the backlight module (30); the foam double-sided adhesive tape (40) is located between the display screen (20) and the middle iron frame (31); and the heat insulation film (60) is located below the foam double-sided adhesive tape (40).

8. The heat insulation structure between a display screen and a backlight according to claim 7, characterized in that: The thickness of the foam double-sided adhesive (40) is 0.5 mm, and the thickness of the thermal insulation film (60) is 0.5 mm-0.79 mm.

9. The heat insulation structure between a display screen and a backlight according to claim 8, characterized in that: The display screen (20) is composed of a display area (21) and a non-display area (22); the heat insulation film (60) is relatively arranged in the non-display area (22); and the heat insulation film (60) is arranged at a certain distance from the display area (21).

10. The heat insulation structure between a display screen and a backlight according to claim 9, characterized in that: The heat insulation film (60) is 0.2 mm to 0.3 mm away from the outer edge of the display area (21).

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