A new liquid crystal display module with heat dissipation block

Abstract

The invention discloses a novel liquid crystal display module containing a heat sink, comprising a back plate, a reflector, a light guide plate, an optical film material, a rubber frame, a liquid crystal display panel, an outer frame, a heat sink and an LED light strip; the reflector is mounted on the back plate, the light guide plate is arranged above the reflector, the optical film material is arranged above the light guide plate, the rubber frame is sleeved on the back plate, the liquid crystal display panel is mounted on the rubber frame and is located above the optical film material, and the outer frame is sleeved on the rubber frame; the heat sink is mounted between the side of the back plate and the rubber frame, the heat sink comprises a heat sink and a plurality of heat sinks, the heat sink abuts against the back plate, the heat sink is mounted on the side of the heat sink away from the back plate and abuts against the rubber frame; a light guide through hole is arranged on the side of the back plate corresponding to the position of the light guide plate, and a mounting groove is arranged on the position of the heat sink corresponding to the light guide through hole. The invention is easy to use and has excellent heat dissipation effect.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid crystal display, and in particular to a novel liquid crystal display module containing a heat dissipation block. Background Art

[0002] In modern society, liquid crystal display technology has been widely used. Liquid crystal display modules have many advantages such as thin body and power saving, and are widely used in devices such as handheld computers, computer screens and notebook screens. In the existing technology, the LED light bar is placed on the inner side of the back panel, and the heat of the LED light bar is dissipated by heat conduction. The outer frame and the rubber frame cooperate to fix the liquid crystal display panel. When the LED light bar is working, a large amount of heat will be generated. This heat is concentrated on the inner side of the back panel and is difficult to dissipate effectively. Continuous high temperature will not only affect the normal operation of the light bar, but also easily cause the light guide plate to expand due to heat, seriously affecting the overall use effect and life of the liquid crystal display module. Therefore, there is still a lot of room for improvement in the display module. Summary of the invention

[0003] In order to solve the technical problems existing in the background technology, the present invention proposes a novel liquid crystal display module preferably containing a heat dissipation block, which has the advantages of being easy to use and having excellent heat dissipation effect.

[0004] The present invention proposes a novel liquid crystal display module with a heat dissipation block, comprising a back plate, a reflective sheet, a light guide plate, an optical film material, a plastic frame, a liquid crystal display panel, an outer frame, a heat dissipation device and an LED light bar;

[0005] The reflective sheet is mounted on the back plate, the light guide plate is arranged above the reflective sheet, the optical film material is arranged above the light guide plate, the rubber frame is sleeved on the back plate, the liquid crystal display panel is mounted on the rubber frame and is located above the optical film material, and the outer frame is sleeved on the rubber frame;

[0006] The heat dissipation device is installed between the side of the back panel and the rubber frame. The heat dissipation device includes a heat dissipation block and multiple heat dissipation plates. The heat dissipation block is abutted against the back panel. The heat dissipation plate is installed on the side of the heat dissipation block away from the back panel and abutted against the rubber frame. A light guide hole is provided on the side of the back panel corresponding to the position of the light guide plate. The heat dissipation block is provided with a mounting groove at the position corresponding to the light guide hole. The LED light strip includes a printed circuit board and an LED lamp. The printed circuit board is installed in the mounting groove. The LED lamp is installed on the printed circuit board and is located in the light guide hole.

[0007] Preferably, the heat sinks are all arranged at an angle, and any two heat sinks are parallel to each other.

[0008] Preferably, a plurality of heat dissipation columns are provided on the heat dissipation plate.

[0009] Preferably, the heat dissipation column is cylindrical.

[0010] Preferably, it also includes a dust blocking plate, the two opposite sides of the dust blocking plate are respectively connected to the back plate and the rubber frame, the dust blocking plate is located below the heat dissipation block, and a plurality of ventilation holes are arranged on the dust blocking plate.

[0011] Preferably, the cross-sectional area of ​​the vent hole gradually decreases from top to bottom.

[0012] Preferably, it also includes a plurality of screws, and the back plate, the brush circuit board, the heat sink, the rubber frame and the outer frame are fixed by the screws.

[0013] The invention has a simple structure and is easy to use. The LED light bar generates a lot of heat when it is working. The LED light bar is installed on the outside of the back plate, which can greatly reduce the heat accumulated in the back plate, reduce the requirements for the thermal conductivity of the back plate, and increase the selection range of the back plate material. The heat generated by the LED light bar will be transferred to the heat dissipation block. The heat dissipation block can increase the heat dissipation area through the heat dissipation plate, and the heat dissipation plate is used to generate a certain gap between the heat dissipation block and the rubber frame, which is conducive to the heat dissipation of the heat dissipation block. The invention effectively increases the heat dissipation effect of the LED light bar, and the overall volume of the invention is small. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The present invention provides a schematic structural diagram of a novel liquid crystal display module with a heat dissipation block. DETAILED DESCRIPTION

[0015] Reference Figure 1 As shown, a novel liquid crystal display module with a heat dissipation block proposed by the present invention includes a back plate 1, a reflective sheet 2, a light guide plate 3, an optical film material 4, a plastic frame 5, a liquid crystal display panel 6, an outer frame 7, a heat dissipation device and an LED light bar;

[0016] The reflective sheet 2 is mounted on the back plate 1, the light guide plate 3 is arranged above the reflective sheet 2, the optical film material 4 is arranged above the light guide plate 3, the plastic frame 5 is sleeved on the back plate 1, the liquid crystal display panel 6 is mounted on the plastic frame 5 and is located above the optical film material 4, and the outer frame 7 is sleeved on the plastic frame 5;

[0017] The heat dissipation device is installed between the side of the back plate 1 and the rubber frame 5, and the heat dissipation device includes a heat dissipation block 81 and multiple heat dissipation plates 82. The heat dissipation block 81 is abutted against the back plate 1, and the heat dissipation plate 82 is installed on the side of the heat dissipation block 81 away from the back plate 1 and abutted against the rubber frame 5; a light guide hole 101 is provided on the side of the back plate 1 corresponding to the position of the light guide plate 3, and a mounting groove is provided at the position of the heat dissipation block 81 corresponding to the light guide hole 101. The LED light strip includes a printed circuit board 91 and an LED lamp 92. The printed circuit board 91 is installed in the mounting groove, and the LED lamp 92 is installed on the printed circuit board 91 and is located in the light guide hole 101.

[0018] During the operation of the present invention, the LED light bar generates a large amount of heat. The LED light bar is installed on the outside of the back plate 1, which can greatly reduce the heat accumulated in the back plate 1 and reduce the requirements for the thermal conductivity of the back plate 1. The heat generated by the LED light bar will be transferred to the heat sink 81. The heat sink 81 can increase the heat dissipation area through the heat sink 82, and the heat sink 82 is used to generate a certain gap between the heat sink 81 and the rubber frame 5, which is conducive to the heat dissipation of the heat sink 81. The present invention effectively increases the heat dissipation effect of the LED light bar, and the overall volume of the present invention is small.

[0019] In this embodiment, the heat sinks 82 are all inclined, and any two heat sinks 82 are parallel to each other. The inclined heat sinks 82 can guide the flowing air and promote air circulation to a certain extent. A plurality of heat sinks are provided on the heat sink 82, and the heat sinks can further increase the heat dissipation area of ​​the present invention.

[0020] In this embodiment, the heat dissipation column is cylindrical, which increases the heat dissipation area of ​​the cylindrical heat dissipation column while having little effect on the flow of air.

[0021] In this embodiment, a dust blocking plate 10 is also included. The opposite sides of the dust blocking plate 10 are respectively connected to the back plate 1 and the rubber frame 5. The dust blocking plate 10 is located below the heat dissipation block 81. A plurality of ventilation holes are provided on the dust blocking plate 10. The dust blocking plate 10 can prevent the user from directly touching the heat dissipation device and can reduce the possibility of dust and water stains falling on the heat dissipation device.

[0022] In this embodiment, the cross-sectional area of ​​the vent hole gradually decreases from top to bottom, which helps to reduce the possibility of dust falling on the heat dissipation device and can also promote the circulation of air near the heat dissipation device to a certain extent.

[0023] In this embodiment, it also includes a plurality of screws 11, and the back plate 1, the brush circuit board 91, the heat sink 81, the rubber frame 5 and the outer frame 7 are fixed by the screws 11. The screws 11 can stably fix the back plate 1, the brush circuit board 91, the heat sink 81, the rubber frame 5 and the outer frame 7 together, and can be easily disassembled. Compared with the hook, the screws 11 can effectively reduce the use cost of the mold and can better fix the heat sink 81.

[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A novel liquid crystal display module with a heat sink, characterized in that: It comprises a back plate (1), a reflective sheet (2), a light guide plate (3), an optical film material (4), a plastic frame (5), a liquid crystal display panel (6), an outer frame (7), a heat dissipation device and an LED light strip; The reflective sheet (2) is mounted on the back plate (1), the light guide plate (3) is arranged above the reflective sheet (2), the optical film material (4) is arranged above the light guide plate (3), the plastic frame (5) is sleeved on the back plate (1), the liquid crystal display panel (6) is mounted on the plastic frame (5) and is located above the optical film material (4), and the outer frame (7) is sleeved on the plastic frame (5); The heat dissipation device is installed between the side of the back plate (1) and the rubber frame (5), and the heat dissipation device comprises a heat dissipation block (81) and a plurality of heat dissipation plates (82). The heat dissipation block (81) is abutted against the back plate (1), and the heat dissipation plate (82) is installed on the side of the heat dissipation block (81) away from the back plate (1) and abutted against the rubber frame (5); a light guide through hole (101) is provided on the side of the back plate (1) at a position corresponding to the light guide plate (3), and a mounting groove is provided on the heat dissipation block (81) at a position corresponding to the light guide through hole (101); the LED light bar comprises a printed circuit board (91) and an LED lamp (92), the printed circuit board (91) is installed in the mounting groove, and the LED lamp (92) is installed on the printed circuit board (91) and is located in the light guide through hole (101); It also includes a dust blocking plate (10), the two opposite sides of the dust blocking plate (10) are respectively connected to the back plate (1) and the rubber frame (5), the dust blocking plate (10) is located below the heat dissipation block (81), and a plurality of ventilation holes are provided on the dust blocking plate (10); The cross-sectional area of ​​the vent gradually decreases from top to bottom; A plurality of heat dissipation columns are arranged on the heat dissipation plate (82).

2. The novel liquid crystal display module with heat dissipation block according to claim 1 is characterized in that: The heat dissipation plates (82) are all arranged at an angle, and any two heat dissipation plates (82) are parallel to each other.

3. The novel liquid crystal display module with a heat sink according to claim 2 is characterized in that: The heat dissipation column is cylindrical.

4. The novel liquid crystal display module with a heat sink according to any one of claims 1 to 3, characterized in that: It also includes a plurality of screws (11), and the back plate (1), the brush circuit board (91), the heat sink (81), the rubber frame (5) and the outer frame (7) are fixed by means of the screws (11).

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