Dynamic brightness control device based on COB display unit

Abstract

The utility model discloses a dynamic brightness control device based on a COB display unit, which comprises a screen, a screen module, an installation frame, a heat dissipation type dynamic brightness control panel, positioning installation screw holes and side heat dissipation flow guide through holes, and the screen and the screen module are combined and installed and are in butt joint with the positioning installation screw holes of the installation frame. The utility model discloses a dynamic brightness control device based on a COB (Chip On Board) display unit, which is characterized in that a mounting frame is provided with a heat dissipation type dynamic brightness control board, and the design of the device is suitable for positioning and heat dissipation of a dynamic brightness control circuit board. The circuit board, the heat dissipation silicone grease filling plate and the positioning heat conduction plate are positioned and installed in sequence from front to back, the hexagonal mesh limiting back plate corresponding to a circuit board chip is filled with heat dissipation silicone grease, and a heat dissipation copper rod is installed in a positioning butt joint insertion hole of the positioning heat conduction plate corresponding to the circuit board chip in an inserted mode. And the heat of the chip is conducted through the heat dissipation silicone grease and is quickly guided through the heat dissipation copper rod, so that the positioning is accurate, and the heat dissipation efficiency is better.

Description

Technical Field

[0001] This utility model relates to a dynamic brightness control device based on a COB display unit, belonging to the technical field of COB display units. Background Technology

[0002] COB (Chip-on-Board) display units are a display technology that directly packages LED chips onto a circuit board, featuring high brightness, high reliability, and high integration. A dynamic brightness control device is a crucial component of a COB display unit, used to automatically adjust the display brightness based on ambient light intensity or displayed content to achieve energy savings, extended lifespan, and optimized display effects. However, the lack of a heat dissipation structure for its built-in dynamic brightness control device can negatively impact normal display performance during prolonged operation. Utility Model Content

[0003] The purpose of this invention is to provide a dynamic brightness control device based on a COB display unit to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a dynamic brightness control device based on a COB display unit, comprising a screen, a screen module, a mounting frame, a heat-dissipating dynamic brightness control board, positioning mounting screw holes, and side heat dissipation guide holes. After the screen and screen module are assembled and installed, they are connected to the positioning mounting screw holes of the mounting frame. The heat-dissipating dynamic brightness control board is embedded in the mounting frame, and side heat dissipation guide holes are formed on both sides of the mounting frame.

[0005] Preferably, the heat-dissipating dynamic brightness control board consists of a circuit board, a thermal grease filling plate, a positioning heat-conducting plate, and a heat-dissipating copper rod. The circuit board, the thermal grease filling plate, and the positioning heat-conducting plate are positioned and installed in a front-to-back sequence, and the positioning heat-conducting plate is fitted with a heat-dissipating copper rod.

[0006] Preferably, the heat dissipation grease filling plate has a hexagonal mesh limiting back plate internally formed.

[0007] Preferably, the positioning heat-conducting plate consists of an outer frame, an inner mounting plate, and positioning docking holes. The outer frame and the inner mounting plate are positioned and welded together, and the inner mounting plate is machined to have positioning docking holes.

[0008] Preferably, the heat dissipation copper rod is formed with a central heat-conducting through hole.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: The heat-dissipating dynamic brightness control board is composed of a circuit board, a heat-dissipating grease filling plate, a positioning heat-conducting plate, and a heat-dissipating copper rod. The heat-dissipating grease filling plate has a hexagonal mesh limiting back plate internally processed. The positioning heat-conducting plate is composed of an outer frame, an inner mounting plate, and positioning docking holes. The hexagonal mesh limiting back plate corresponding to the circuit board chip is filled with heat-dissipating grease. The positioning docking holes of the positioning heat-conducting plate corresponding to the circuit board chip are inserted to install the heat-dissipating copper rod. The heat of the chip is conducted through the heat-dissipating grease and finally quickly conducted through the heat-dissipating copper rod, resulting in more precise positioning and better heat dissipation efficiency. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the dynamic brightness control device based on a COB display unit according to this utility model;

[0011] Figure 2 This is a schematic diagram of the installation structure of the dynamic brightness control device based on the COB display unit of this utility model;

[0012] Figure 3 This is a schematic diagram of the structure of the heat-dissipating dynamic brightness control board of this utility model;

[0013] Figure 4 This is a schematic diagram of the structure of the thermal grease filling plate of this utility model;

[0014] Figure 5 This is a schematic diagram of the positioning heat-conducting plate and the heat dissipation copper rod of this utility model.

[0015] In the diagram: 1. Screen, 2. Screen module, 3. Mounting frame, 4. Heat-dissipating dynamic brightness control board, 5. Positioning mounting screw holes, 6. Side heat dissipation guide holes, 7. Circuit board, 8. Thermal grease filling plate, 9. Positioning heat conduction plate, 10. Heat dissipation copper rod, 11. Hexagonal mesh limiting back plate, 12. Outer frame, 13. Inner mounting plate, 14. Positioning docking hole, 15. Central heat conduction through hole. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0017] like Figures 1-5 As shown, a dynamic brightness control device based on a COB display unit includes a screen 1, a screen module 2, a mounting frame 3, a heat-dissipating dynamic brightness control board 4, positioning mounting screw holes 5, and side heat dissipation guide holes 6. After the screen 1 and screen module 2 are assembled, they are connected to the positioning mounting screw holes 5 of the mounting frame 3. The heat-dissipating dynamic brightness control board 4 is embedded in the mounting frame 3, and side heat dissipation guide holes 6 are formed on both sides of the mounting frame 3.

[0018] The heat-dissipating dynamic brightness control board 4 consists of a circuit board 7, a thermal grease filling plate 8, a positioning heat-conducting plate 9, and a heat-dissipating copper rod 10. The circuit board 7, the thermal grease filling plate 8, and the positioning heat-conducting plate 9 are installed in a front-to-back sequence. The heat-dissipating copper rod 10 is inserted into the positioning heat-conducting plate 9. The hexagonal mesh limiting backplate 11 corresponding to the chip of the circuit board 7 is filled with thermal grease. The positioning docking hole 14 of the positioning heat-conducting plate 9 corresponding to the chip of the circuit board 7 is inserted to install the heat-dissipating copper rod 10. The heat of the chip is conducted through the thermal grease and then quickly conducted through the heat-dissipating copper rod 10. The precise positioning results in better heat dissipation efficiency.

[0019] The heat dissipation grease filling plate 8 has a hexagonal mesh limiting back plate 11 inside, which is used to position and fill the heat dissipation grease.

[0020] The positioning heat conduction plate 9 is composed of an outer frame 12, an inner mounting plate 13 and a positioning docking hole 14. The outer frame 12 and the inner mounting plate 13 are positioned and welded. The inner mounting plate 13 is processed to have a positioning docking hole 14. The positioning docking hole 14 is positioned and docked with the heat dissipation copper rod 10.

[0021] The heat dissipation copper rod 10 is formed with a central heat-conducting through hole 15, which facilitates rapid heat dissipation.

[0022] Specific usage: A dynamic brightness control device based on COB display unit. This device is designed for positioning and heat dissipation of dynamic brightness control circuit boards. The circuit board, thermal grease filling plate, and positioning heat conduction plate are positioned and installed in a front-to-back sequence. The hexagonal mesh limiting backplate corresponding to the circuit board chip is filled with thermal grease. The positioning docking holes of the positioning heat conduction plate corresponding to the circuit board chip are inserted to install the heat dissipation copper rod. The heat of the chip is conducted through the thermal grease and finally quickly conducted through the heat dissipation copper rod. Precise positioning results in better heat dissipation efficiency.

[0023] The above description is a preferred embodiment of the present utility model. For those skilled in the art, any changes, modifications, substitutions and variations made to the implementation methods without departing from the principles and spirit of the present utility model, based on the teachings of the present utility model, still fall within the protection scope of the present utility model.

Claims

1. A dynamic brightness control device based on a COB display unit, characterized in that, The device includes a screen (1), a screen module (2), a mounting frame (3), a heat-dissipating dynamic brightness control board (4), positioning mounting screw holes (5), and side heat dissipation guide holes (6). After the screen (1) and screen module (2) are assembled, they are connected to the positioning mounting screw holes (5) of the mounting frame (3). The heat-dissipating dynamic brightness control board (4) is embedded in the mounting frame (3). Side heat dissipation guide holes (6) are formed on both sides of the mounting frame (3).

2. The dynamic brightness control device based on a COB display unit according to claim 1, characterized in that: The heat-dissipating dynamic brightness control board (4) consists of a circuit board (7), a heat-dissipating grease filling plate (8), a positioning heat-conducting plate (9), and a heat-dissipating copper rod (10). The circuit board (7), the heat-dissipating grease filling plate (8), and the positioning heat-conducting plate (9) are positioned and installed in a front-to-back order. The positioning heat-conducting plate (9) has a heat-dissipating copper rod (10) inserted into its body.

3. The dynamic brightness control device based on a COB display unit according to claim 2, characterized in that: The heat dissipation grease filling plate (8) has a hexagonal mesh limiting back plate (11) formed inside the plate body.

4. The dynamic brightness control device based on a COB display unit according to claim 2, characterized in that: The positioning heat-conducting plate (9) consists of an outer frame (12), an inner mounting plate (13), and a positioning docking hole (14). The outer frame (12) and the inner mounting plate (13) are positioned and welded together. The inner mounting plate (13) is processed and formed with a positioning docking hole (14).

5. A dynamic brightness control device based on a COB display unit according to claim 2, characterized in that: The heat dissipation copper rod (10) is formed with a central heat-conducting through hole (15).

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