Backlight module for high-screen-to-body-ratio LCD (liquid crystal display) design

Abstract

The utility model relates to the technical field of display, in particular to a backlight module for high screen-to-body ratio LCD (liquid crystal display) design, which comprises a backlight module body and a heat dissipation component, the heat dissipation component comprises a reinforcing copper frame, a graphene heat-conducting fin, two plug frames, two fixing pieces, two plug blocks and a heat conduction structure, silicone grease for heat dissipation is coated on the graphene heat-conducting fin, and the heat conduction structure is coated on the graphene heat-conducting fin. Then the two inserting blocks on the two sides of the heat conduction structure are inserted into the two inserting frames correspondingly to be fixed, so that the heat conduction structure is attached to the graphene heat conduction piece, heat dissipated by the back plate of the backlight module body is rapidly dissipated out through the heat conduction structure, and then heat accumulation of the backlight module body is reduced; therefore, the problems that according to an existing backlight module for a high-screen-to-body-ratio LCD, a backlight module body can dissipate heat in the light emitting process, heat can be continuously accumulated after long-time work, the service life of the backlight module body is shortened, and the display quality of a follow-up liquid crystal display is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of display, and in particular to a backlight module for LCD design with a high screen-to-body ratio. Background Art

[0002] Liquid Crystal Display (LCD) is widely used in various fields, such as computers, mobile phones, televisions, and measurement displays. LCD also includes a backlight module body, which is used to provide light source for the liquid crystal display panel so that the LCD can display images.

[0003] The prior art (CN214335418U) discloses a backlight module for LCDs with a high screen-to-body ratio. The backlight module body includes: an iron frame, an LED light source, and an optical film group. The backlight module body has a through hole, which passes through the optical film group and the iron frame. The iron frame is arranged on at least one side of the backlight module body to fix the optical film. The iron frame ensures that the mechanical strength of the rounded edge of the backlight module body with a hollow structure such as the through hole is not lower than that of other positions of the backlight module body. During the assembly process, the optical functional layer will not be damaged due to deformation, resulting in light leakage or uneven light output. At the same time, the iron frame partially covers the backlight module body to achieve thinning and weight reduction.

[0004] However, when the above method is adopted, the backlight module body will emit heat during the light emission process. Long-term operation will cause the heat to continue to accumulate, resulting in a reduction in the life of the backlight module body and affecting the display quality of the subsequent liquid crystal display. Utility Model Content

[0005] The purpose of the utility model is to provide a backlight module designed for a high screen-to-body ratio LCD, aiming to solve the problem that the existing backlight module for a high screen-to-body ratio LCD emits heat during the light-emitting process, and long-term operation will cause continuous accumulation of heat, resulting in a reduction in the life of the backlight module body and affecting the display quality of the subsequent liquid crystal display.

[0006] To achieve the above-mentioned purpose, the utility model provides a backlight module for high screen-to-body ratio LCD design, including a backlight module body and a heat dissipation component;

[0007] The heat dissipation assembly includes a reinforced copper frame, a graphene heat conductive sheet, two plug-in frames, two fixing members, two plug-in blocks and a heat conductive structure;

[0008] The reinforced copper frame is fixedly connected to the backlight module body and is located on the side of the backlight module body; the graphene heat conductive sheet is fixedly connected to the backlight module body and is located on one side of the backlight module body; the two plug-in frames are respectively fixedly connected to the reinforced copper frames and are located on one side of the reinforced copper frames; the two fixing parts are respectively arranged on one side of the two plug-in frames; the two plug-in blocks are respectively located inside the two plug-in frames; the heat conductive structure is respectively fixedly connected to the two plug-in blocks and is located between the two plug-in blocks.

[0009] Wherein, the fixing member includes a locking screw and a bolt, the locking screw is threadedly connected to the plug-in frame and is located at one side of the plug-in frame; the bolt is fixedly connected to the locking screw and is located at one side of the locking screw.

[0010] Among them, the heat-conducting structure includes a heat-conducting copper plate, a heat-conducting silicon pad, a heat-dissipating fin and a ventilator. The heat-conducting copper plate is fixedly connected to the two plug-in blocks respectively and is located between the two plug-in blocks; the heat-conducting silicon pad is fixedly connected to the heat-conducting copper plate and is located on one side of the heat-conducting copper plate; the heat-dissipating fin is fixedly connected to the heat-conducting copper plate and is located on one side of the heat-conducting copper plate; the ventilator is arranged on one side of the heat-conducting copper plate.

[0011] Wherein, the ventilation component includes a bracket and an annular ventilation fan, the bracket is fixedly connected to the heat-conducting copper plate and is located on one side of the heat-conducting copper plate; the annular ventilation fan is fixedly connected to the bracket and is located on one side of the bracket.

[0012] Wherein, the heat dissipation assembly further includes two auxiliary mounting parts, and the two auxiliary mounting parts are respectively arranged on both sides of the reinforced copper frame.

[0013] Among them, the auxiliary mounting part includes a connecting block and an L-shaped mounting plate, the connecting block is fixedly connected to the reinforced copper frame and is located on one side of the reinforced copper frame; the L-shaped mounting plate is fixedly connected to the connecting block and is located on one side of the connecting block; the L-shaped mounting plate has an assembly hole, and the assembly hole is located on one side of the L-shaped mounting plate.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. By setting the reinforced copper frame, the graphene heat conductive sheet, two plug-in frames, two fixing members, two plug-in blocks and the heat conductive structure, the reinforced copper frame is used to perform edge reinforcement treatment on the side of the backlight module body and can conduct a certain amount of heat by using the thermal conductivity of copper, silicone grease for heat dissipation is applied on the graphene heat conductive sheet, and then the two plug-in blocks are respectively inserted into the two plug-in frames and fixed by the fixing members, so that the heat conductive structure is attached to the graphene heat conductive sheet, and the heat emitted from the back plate of the backlight module body is transferred to the heat conductive structure through the graphene heat conductive sheet, and the heat is quickly emitted through the heat conductive structure, thereby reducing the heat accumulation of the backlight module body, thereby solving the problem that the existing backlight module for LCD with high screen ratio will emit heat during the light emission process, and long-term work will cause continuous heat accumulation, resulting in a reduction in the life of the backlight module body and affecting the display quality of the subsequent liquid crystal display.

[0016] 2. By providing the locking screw and the bolt, the bolt is twisted to make the locking screw and the plug-in block threadedly connected, making it more convenient to install the heat-conducting structure.

[0017] 3. By setting the thermally conductive copper plate, the thermally conductive silicon pad, the heat dissipating fins and the ventilation component, the thermally conductive copper plate is inserted into the plug-in frame through the two plug-in blocks and matched with the fixing component to complete the assembly, the thermally conductive silicon pad is attached to the graphene thermal conductive sheet coated with silicone grease, and when the backlight module body is working, the heat emitted by the back plate is transferred to the graphene thermal conductive sheet, and the graphene thermal conductive sheet transfers the heat to the thermally conductive silicon pad, and then transfers the heat to the thermally conductive copper plate through the thermally conductive silicon pad, and quickly dissipates the heat through the gaps between the heat dissipating fins, and then cooperates with the ventilation component to accelerate air interaction and increase the overall heat dissipation efficiency.

[0018] 4. By providing the bracket and the annular ventilation fan, the bracket is used to support the installation of the annular ventilation fan, and the annular ventilation fan accelerates air circulation to quickly discharge the heat emitted by the heat dissipation fins, thereby further reducing the temperature of the backlight module body.

[0019] 5. By setting the connecting block and the L-shaped mounting plate, the connecting block is used to support the installation of the L-shaped mounting plate. When assembling the backlight module body, screws are used to pass through the assembly holes on the L-shaped mounting plate and threadedly connected to the assembly structure, thereby increasing the stability of the backlight module body during assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0021] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the utility model.

[0022] Figure 2 It is an overall front view of the first embodiment of the utility model.

[0023] Figure 3 It is an overall cross-sectional view of the first embodiment of the utility model.

[0024] Figure 4 It is a schematic diagram of the overall structure of the second embodiment of the utility model.

[0025] 101-backlight module body, 102-reinforced copper frame, 103-graphene heat conductive sheet, 104-plug-in frame, 105-fixing part, 106-plug-in block, 107-thermal conductive structure, 108-locking screw, 109-bolt, 110-thermal conductive copper plate, 111-thermal conductive silicon pad, 112-heat sink fin, 113-ventilation part, 114-bracket, 115-ring ventilation fan, 201-auxiliary mounting part, 202-connecting block, 203-L-type mounting plate, 204-assembly hole. DETAILED DESCRIPTION

[0026] The first embodiment of the present application is:

[0027] See also Figure 1-Figure 3 ,in, Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the utility model. Figure 2 It is a front view of the whole of the first embodiment of the utility model. Figure 3 It is an overall cross-sectional view of the first embodiment of the utility model.

[0028] The utility model provides a backlight module for LCD design with a high screen-to-body ratio: comprising a backlight module body 101 and a heat dissipation component, wherein the heat dissipation component comprises a reinforced copper frame 102, a graphene heat conductive sheet 103, two plug-in frames 104, two fixing members 105, two plug-in blocks 106 and a heat-conducting structure 107, wherein the fixing member 105 comprises a locking screw 108 and a bolt 109, and the heat-conducting structure 107 comprises a heat-conducting copper plate 110, a heat-conducting silicon pad 111, heat-dissipating fins 112 and a ventilation member 113, wherein the ventilation member 113 comprises a bracket 114 and an annular ventilation fan 115. The above-mentioned scheme solves the problem that the existing backlight module for LCD with a high screen-to-body ratio, the backlight module body 101 will emit heat during the light-emitting process, and long-term operation will cause continuous accumulation of heat, resulting in a reduction in the life of the backlight module body 101 and affecting the display quality of the subsequent liquid crystal display.

[0029] According to this specific implementation, the backlight module body 101 is installed in an LCD screen with a high screen-to-body ratio to provide a light source.

[0030] Among them, the reinforced copper frame 102 is fixedly connected to the backlight module body 101 and is located on the side of the backlight module body 101; the graphene heat conductive sheet 103 is fixedly connected to the backlight module body 101 and is located on one side of the backlight module body 101; the two plug-in frames 104 are respectively fixedly connected to the reinforced copper frame 102 and are located on one side of the reinforced copper frame 102; the two fixing members 105 are respectively arranged on one side of the two plug-in frames 104; the two plug-in blocks 106 are respectively located inside the two plug-in frames 104; the heat conductive structure 107 is respectively fixedly connected to the two plug-in blocks 106 and is located between the two plug-in blocks 106. The reinforced copper frame 102 is used to perform edge reinforcement treatment on the side of the backlight module body 101 and can conduct a certain amount of heat by utilizing the thermal conductivity of copper. The heat is dissipated, silicone grease for heat dissipation is applied on the graphene heat conductive sheet 103, and then the two plug-in blocks 106 are respectively inserted into the two plug-in frames 104 and fixed by the fixing members 105, so that the heat conductive structure 107 is attached to the graphene heat conductive sheet 103, and the heat emitted by the back plate of the backlight module body 101 is transferred to the heat conductive structure 107 through the graphene heat conductive sheet 103, and the heat is quickly dissipated through the heat conductive structure 107, thereby reducing the heat accumulation of the backlight module body 101, thereby solving the problem that the backlight module for the existing high screen-to-body ratio LCD will emit heat during the light emission process, and long-term work will cause continuous heat accumulation, resulting in a reduction in the life of the backlight module body 101 and affecting the display quality of the subsequent liquid crystal display.

[0031] Secondly, the locking screw 108 is threadedly connected to the plug-in frame 104 and is located on one side of the plug-in frame 104; the bolt 109 is fixedly connected to the locking screw 108 and is located on one side of the locking screw 108. Twisting the bolt 109 allows the locking screw 108 to be threadedly connected to the plug-in block 106, making it more convenient to install the heat-conducting structure 107.

[0032] At the same time, the thermally conductive copper plate 110 is fixedly connected to the two plug-in blocks 106 respectively and is located between the two plug-in blocks 106; the thermally conductive silicon pad 111 is fixedly connected to the thermally conductive copper plate 110 and is located on one side of the thermally conductive copper plate 110; the heat dissipation fin 112 is fixedly connected to the thermally conductive copper plate 110 and is located on one side of the thermally conductive copper plate 110; the ventilator 113 is arranged on one side of the thermally conductive copper plate 110, and the thermally conductive copper plate 110 is inserted into the plug-in frame 104 through the two plug-in blocks 106 to cooperate with the fixing part 105 is assembled, the thermally conductive silicon pad 111 is attached to the graphene thermal conductive sheet 103 coated with silicone grease, when the backlight module body 101 is working, the heat emitted by the back panel is transferred to the graphene thermal conductive sheet 103, the graphene thermal conductive sheet 103 transfers the heat to the thermally conductive silicon pad 111, and then the heat is transferred to the thermally conductive copper plate 110 through the thermally conductive silicon pad 111, and the heat is quickly dissipated through the gaps between the heat dissipating fins 112, and the air exchange component 113 is cooperated to accelerate air interaction to increase the overall heat dissipation efficiency.

[0033] In addition, the bracket 114 is fixedly connected to the thermally conductive copper plate 110 and is located on one side of the thermally conductive copper plate 110; the annular ventilation fan 115 is fixedly connected to the bracket 114 and is located on one side of the bracket 114. The bracket 114 is used to support the installation of the annular ventilation fan 115. The annular ventilation fan 115 accelerates air circulation to quickly discharge the heat emitted by the heat dissipation fins 112, thereby further reducing the temperature of the backlight module body 101.

[0034] When using a backlight module for a high screen-to-body ratio LCD design described in this embodiment, the reinforced copper frame 102 is used to perform edge reinforcement processing on the side of the backlight module body 101 and use the thermal conductivity of copper to conduct a certain amount of heat. Silicone grease for heat dissipation is applied to the graphene thermal conductive sheet 103, and then the two plug-in blocks 106 are respectively inserted into the two plug-in frames 104 and fixed by the locking screws 108 by twisting the bolts 109, so that the thermal conductive structure 107 is attached to the graphene thermal conductive sheet 103. When the backlight module body 101 is working, the heat emitted by the back plate is transferred to the graphene thermal conductive sheet 103. The graphene heat conductive sheet 103 transfers heat to the thermally conductive silicon pad 111, and then transfers heat to the thermally conductive copper plate 110 through the thermally conductive silicon pad 111, and quickly dissipates the heat through the gaps between the heat dissipating fins 112. The annular ventilation fan 115 accelerates air circulation to quickly discharge the heat emitted by the heat dissipating fins 112, further reducing the temperature of the backlight module body 101, thereby solving the problem that the backlight module body 101 of the existing backlight module for LCDs with a high screen-to-body ratio will emit heat during the light-emitting process, and long-term operation will cause continuous accumulation of heat, resulting in a reduction in the life of the backlight module body 101 and affecting the display quality of subsequent liquid crystal displays.

[0035] The second embodiment of the present application is:

[0036] See also Figure 4 ,in, Figure 4 It is a schematic diagram of the overall structure of the second embodiment of the utility model.

[0037] Based on the first embodiment, the utility model provides a backlight module for a high screen-to-body ratio LCD design, wherein the heat dissipation assembly also includes two auxiliary mounting components 201, wherein the auxiliary mounting components 201 include a connecting block 202 and an L-shaped mounting plate 203, and the L-shaped mounting plate 203 has an assembly hole 204.

[0038] The two auxiliary mounting parts 201 are respectively arranged on both sides of the reinforced copper frame 102 , and the two auxiliary mounting parts 201 are used to increase the stability of the backlight module body 101 during assembly.

[0039] Secondly, the connecting block 202 is fixedly connected to the reinforced copper frame 102 and is located on one side of the reinforced copper frame 102; the L-shaped mounting plate 203 is fixedly connected to the connecting block 202 and is located on one side of the connecting block 202; the L-shaped mounting plate 203 has an assembly hole 204, and the assembly hole 204 is located on one side of the L-shaped mounting plate 203. The connecting block 202 is used to support the installation of the L-shaped mounting plate 203. When assembling the backlight module body 101, screws are used to pass through the assembly hole 204 on the L-shaped mounting plate 203 and are threadedly connected to the assembly structure, thereby increasing the stability of the backlight module body 101 during assembly.

[0040] When using a backlight module for a high screen-to-body ratio LCD design as described in this embodiment, the connecting block 202 is used to support the installation of the L-shaped mounting plate 203. When assembling the backlight module body 101, screws are used to pass through the assembly holes 204 on the L-shaped mounting plate 203 and threadedly connected to the assembly structure, thereby increasing the stability of the backlight module body 101 during assembly.

[0041] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A backlight module for high screen-to-body ratio LCD design, comprising a backlight module body, characterized in that: Also included is a heat dissipation assembly; The heat dissipation assembly includes a reinforced copper frame, a graphene heat conductive sheet, two plug-in frames, two fixing members, two plug-in blocks and a heat conductive structure; The reinforced copper frame is fixedly connected to the backlight module body and is located on the side of the backlight module body; the graphene heat conductive sheet is fixedly connected to the backlight module body and is located on one side of the backlight module body; the two plug-in frames are respectively fixedly connected to the reinforced copper frames and are located on one side of the reinforced copper frames; the two fixing parts are respectively arranged on one side of the two plug-in frames; the two plug-in blocks are respectively located inside the two plug-in frames; the heat conductive structure is respectively fixedly connected to the two plug-in blocks and is located between the two plug-in blocks.

2. A backlight module for high screen-to-body ratio LCD design as claimed in claim 1, characterized in that: The fixing member includes a locking screw and a bolt. The locking screw is threadedly connected to the plug-in frame and is located at one side of the plug-in frame; the bolt is fixedly connected to the locking screw and is located at one side of the locking screw.

3. A backlight module for high screen-to-body ratio LCD design as claimed in claim 2, characterized in that: The heat-conducting structure includes a heat-conducting copper plate, a heat-conducting silicon pad, a heat-dissipating fin and a ventilation component. The heat-conducting copper plate is fixedly connected to the two plug-in blocks and is located between the two plug-in blocks; the heat-conducting silicon pad is fixedly connected to the heat-conducting copper plate and is located on one side of the heat-conducting copper plate; the heat-dissipating fin is fixedly connected to the heat-conducting copper plate and is located on one side of the heat-conducting copper plate; The ventilation component is arranged on one side of the heat-conducting copper plate.

4. A backlight module for high screen-to-body ratio LCD design as claimed in claim 3, characterized in that: The ventilation component includes a bracket and an annular ventilation fan. The bracket is fixedly connected to the heat-conducting copper plate and is located on one side of the heat-conducting copper plate; the annular ventilation fan is fixedly connected to the bracket and is located on one side of the bracket.

5. The backlight module for high screen-to-body ratio LCD design according to claim 1, characterized in that: The heat dissipation assembly also includes two auxiliary mounting parts, and the two auxiliary mounting parts are respectively arranged on both sides of the reinforced copper frame.

6. A backlight module for high screen-to-body ratio LCD design as claimed in claim 5, characterized in that: The auxiliary mounting part includes a connecting block and an L-shaped mounting plate, wherein the connecting block is fixedly connected to the reinforced copper frame and is located on one side of the reinforced copper frame; the L-shaped mounting plate is fixedly connected to the connecting block and is located on one side of the connecting block; the L-shaped mounting plate has an assembly hole, and the assembly hole is located on one side of the L-shaped mounting plate.

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