Multi-color-gamut high-brightness backlight source

Abstract

The utility model discloses a multi-color gamut high-brightness backlight source which comprises a light bar, a light guide plate is fixedly connected to the side surface of the light bar, a reflecting plate is arranged under the light guide plate, a mounting frame is arranged over the light guide plate, a diffusion plate is fixedly connected to the inner side wall of the mounting frame, a connecting frame is arranged in the mounting frame, and the connecting frame is fixedly connected with the reflecting plate. The inner side wall of the connecting frame is fixedly connected with a liquid crystal screen; a sealing frame is slidably connected to the inner side wall of the limiting frame, a silica gel box is slidably connected to the inner side wall of the sealing frame, silica gel is arranged in the silica gel box, and a limiting rod is slidably connected to the inner side wall of the silica gel box. By means of the structure, heat of the light guide plate and the reflecting plate is conducted out through the silica gel, the silica gel is arranged in the silica gel box, the silica gel box is limited through the limiting rods and the limiting frame, the silica gel box is convenient to disassemble and assemble, the silica gel box and the silica gel in the silica gel box can be taken out of the sealing frame at any time, and therefore the silica gel is convenient to replace; the heat dissipation effect of the device is constantly kept.

Description

Technical Field

[0001] This utility model relates to the field of backlight technology, and in particular to a multi-color gamut high-brightness backlight. Background Technology

[0002] To maintain its luminous effect, existing backlights incorporate heat dissipation components to conduct heat from the reflector to the outside of the device while maintaining internal sealing. However, this method only dissipates heat from the reflector and makes it inconvenient to disassemble the heat dissipation components. For example, a backlight disclosed in Chinese Patent Application No. CN202020593929.0 has a heat dissipation block on the surface of the bottom reflector. This block can conduct heat from the reflector to the outside without compromising the internal sealing of the backlight, thus ensuring its luminous effect. However, this method only dissipates heat from the reflector and makes it inconvenient to disassemble the heat dissipation components. Utility Model Content

[0003] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a multi-color gamut high-brightness backlight. A connecting frame is provided on the side surface of the LCD screen. The LCD screen can be quickly installed inside the mounting frame by bolts, while maintaining the performance of the LCD screen. The end of the lamp strip away from the light guide plate is located outside the sealing frame, which can conduct its internal heat to the outside, increasing its heat dissipation effect. The sealing frame can restrict the light guide plate, blocking the light from the edge of the light guide plate and preventing edge reflection from affecting the light emission effect. It can also allow the silicone inside the silicone box to conduct heat from the light guide plate and reflector. The silicone box is restricted by the limiting rod and the limiting frame, which facilitates its disassembly and assembly. The silicone box and the silicone inside can be removed from the sealing frame at any time, which facilitates the replacement of the silicone and maintains the heat dissipation effect of the device at all times.

[0004] This utility model also provides a multi-color gamut high-brightness backlight, comprising: a light strip, a light guide plate fixedly connected to the side surface of the light strip, a reflector plate disposed directly below the light guide plate, a mounting frame disposed directly above the light guide plate, a diffuser plate fixedly connected to the inner side wall of the mounting frame, a connecting frame disposed inside the mounting frame, and an LCD screen fixedly connected to the inner side wall of the connecting frame; a limiting frame, a sealing frame slidably connected to the inner side wall of the limiting frame, a silicone box slidably connected to the inner side wall of the sealing frame, silicone being disposed inside the silicone box, and a limiting rod slidably connected to the inner side wall of the silicone box. The above components include a connecting frame on the side surface of the LCD screen. The LCD screen can be quickly installed inside the mounting frame using bolts, maintaining its functionality. The end of the LED strip furthest from the light guide plate is located outside the sealing frame, allowing heat to be conducted outwards and increasing heat dissipation. The sealing frame restricts the light guide plate, blocking light from its edges and preventing edge reflections from affecting the light emission. It also allows the silicone inside the silicone box to dissipate heat from the light guide plate and reflector. The limiting rod and frame further restrict the silicone box, facilitating disassembly and assembly. The silicone box and its internal silicone can be removed from the sealing frame at any time for easy silicone replacement, ensuring continuous heat dissipation.

[0005] According to the multi-color gamut high-brightness backlight of this utility model, the diffuser plate is located directly above the light guide plate, and the liquid crystal screen is located directly above the diffuser plate. These components enable the diffuser plate to expand the color gamut of the light emitted by the light guide plate, thereby enhancing the luminous effect in conjunction with the liquid crystal screen.

[0006] According to the multi-color gamut high-brightness backlight of this utility model, four bolts are provided between the connecting frame and the mounting frame, and the bolts are located at the four corners of the mounting frame. These components facilitate the installation of the connecting frame and its internal LCD screen inside the mounting frame.

[0007] According to the multi-color gamut high-brightness backlight of this utility model, a quantum dot film is disposed on the upper surface of the liquid crystal screen, and the lower surface of the edge of the liquid crystal screen is in contact with the upper surface of the mounting frame. Through these components, in conjunction with a diffuser plate, the color gamut is further expanded, and the lower surface of the liquid crystal screen is brought into contact with the upper surface of the mounting frame, preventing the accumulation of impurities on the surface of the liquid crystal screen.

[0008] According to the multi-color gamut high-brightness backlight of this utility model, the side surface of the sealing frame is fixedly connected to the side surface of the lamp strip, and the end of the lamp strip away from the light guide plate is located outside the sealing frame. These components allow the heat generated by the lamp strip to dissipate to the outside of the device.

[0009] According to the multi-color gamut high-brightness backlight of this utility model, the inner wall of the sealing frame is in contact with the side surfaces of the light guide plate and the reflector plate, and several silicone boxes are distributed on three sides of the sealing frame. These components provide installation space and support for the light guide plate and reflector plate, and enhance the heat dissipation effect of the silicone.

[0010] According to the multi-color gamut high-brightness backlight of this utility model, the silicone end is in contact with the side surfaces of the light guide plate and the reflector, and the end of the silicone away from the light guide plate is located on the upper surface of the silicone box. Through these components, the heat from the light guide plate and the reflector can be directed to the top of the silicone box, and then dissipated through airflow.

[0011] According to the multi-color gamut high-brightness backlight of this utility model, the side surface of the limiting rod is slidably connected to the inner side wall of the sealing frame, and there are three limiting rods located on three sides of the sealing frame. These components secure the silicone box and prevent the silicone from falling off.

[0012] Beneficial effects:

[0013] Compared with the prior art, this utility model has a connecting frame on the side surface of the LCD screen. The LCD screen can be quickly installed inside the mounting frame with bolts, while maintaining the performance of the LCD screen. The end of the lamp strip away from the light guide plate is located outside the sealing frame, which can conduct its internal heat to the outside, increasing its heat dissipation effect. The sealing frame can easily restrict the light guide plate, blocking the light from the edge of the light guide plate and preventing edge reflection from affecting the light emission effect. It can also allow the silicone inside the silicone box to conduct heat away from the light guide plate and reflector. The silicone box is restricted by the limiting rod and the limiting frame, which facilitates its disassembly and assembly. The silicone box and the silicone inside can be removed from the sealing frame at any time, which facilitates the replacement of silicone and maintains the heat dissipation effect of the device at all times. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0015] Figure 1 This is an overall structural diagram of the multi-color gamut high-brightness backlight of this utility model;

[0016] Figure 2 This is a top view of the multi-color gamut high-brightness backlight of this utility model.

[0017] Figure 3 This is a front cross-sectional view of the multi-color gamut high-brightness backlight of this utility model.

[0018] Figure 4 This utility model provides a multi-color gamut high-brightness backlight. Figure 3 Structural diagram at point A in the middle.

[0019] Legend:

[0020] 1. Light strip; 2. Light guide plate; 3. Reflector; 4. Mounting frame; 5. Diffuser plate; 6. Connecting frame; 7. LCD screen; 8. Limiting frame; 9. Sealing frame; 10. Silicone box; 11. Silicone; 12. Limiting rod; 13. Bolt; 14. Quantum dot film. Detailed Implementation

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0022] Reference Figure 1-4 This utility model provides a multi-color gamut high-brightness backlight, comprising: a light strip 1, a light guide plate 2 fixedly connected to the side surface of the light strip 1, a reflector plate 3 disposed directly below the light guide plate 2, a mounting frame 4 disposed directly above the light guide plate 2, a diffuser plate 5 fixedly connected to the inner wall of the mounting frame 4, the diffuser plate 5 being located directly above the light guide plate 2, a connecting frame 6 disposed inside the mounting frame 4, four bolts 13 being disposed between the connecting frame 6 and the mounting frame 4, the bolts 13 being located at the four corners of the mounting frame 4, a liquid crystal screen 7 fixedly connected to the inner wall of the connecting frame 6, the liquid crystal screen 7 being located directly above the diffuser plate 5, a quantum dot film 14 disposed on the upper surface of the liquid crystal screen 7, and the lower edge of the liquid crystal screen 7 contacting the upper surface of the mounting frame 4.

[0023] Specifically, light is emitted from the light strip 1 to the light guide plate 2, causing the light guide plate 2 to emit light upwards and downwards. The reflector 3 below the light guide plate 2 can reflect the light upwards. The light enters the LCD screen 7 through the diffuser plate 5, and the LCD screen 7 provides a stable light emission effect. The diffuser plate 5 and the quantum dot film 14 work together to expand the color gamut of the device. The mounting frame 4 and the connecting frame 6 can be connected by bolts 13, which facilitates the disassembly, assembly, replacement and maintenance of the LCD screen 7.

[0024] A limiting frame 8 is provided, and a sealing frame 9 is slidably connected to the inner wall of the limiting frame 8. The side surface of the sealing frame 9 is fixedly connected to the side surface of the light strip 1. The end of the light strip 1 away from the light guide plate 2 is located outside the sealing frame 9. The inner wall of the sealing frame 9 is in contact with the side surfaces of the light guide plate 2 and the reflector 3. A silicone box 10 is slidably connected to the inner wall of the sealing frame 9. There are several silicone boxes 10 distributed on three sides of the sealing frame 9. Silicone 11 is provided inside the silicone box 10. The end of the silicone 11 is in contact with the side surfaces of the light guide plate 2 and the reflector 3. The end of the silicone 11 away from the light guide plate 2 is located on the upper surface of the silicone box 10. A limiting rod 12 is slidably connected to the inner wall of the silicone box 10. The side surface of the limiting rod 12 is slidably connected to the inner wall of the sealing frame 9. There are three limiting rods 12 located on three sides of the sealing frame 9.

[0025] Specifically, the silicone 11, whose end contacts the light guide plate 2 and the reflector plate 3, can direct the heat inside the light guide plate 2 and the reflector plate 3 to the upper surface of the silicone box 10, and the heat is carried away by the external airflow, thus achieving a heat dissipation effect. It can also squeeze the end of the silicone 11 from the three sides of the light guide plate 2 to restrict its position and prevent the light guide plate 2 from shifting due to thermal expansion and contraction caused by heat, resulting in a decrease in brightness. The silicone box 10 is restricted by the limiting frame 8 and the limiting rod 12, which can be easily removed to remove the silicone box 10, making it convenient to replace the silicone 11 and maintain its heat dissipation effect.

[0026] Working principle: During use, light is emitted from the light strip 1 onto the light guide plate 2, causing the light guide plate 2 to emit light both upwards and downwards. The reflector 3 below the light guide plate 2 reflects the light upwards. The light passes through the diffuser 5 and enters the LCD screen 7, where it provides a stable light emission effect. This allows the diffuser 5 and the quantum dot film 14 to work together to expand the color gamut of the device. The mounting frame 4 and connecting frame 6 can be connected by bolts 13, facilitating the disassembly, replacement, and maintenance of the LCD screen 7. The silicone 1 at the end contacts the light guide plate 2 and the reflector 3. 1. It can direct the heat inside the light guide plate 2 and reflector 3 to the upper surface of the silicone box 10, and carry away the heat through the external air flow, thus achieving a heat dissipation effect. It can also squeeze the end of the silicone 11 from the three sides of the light guide plate 2 to restrict its position and prevent the light guide plate 2 from shifting due to thermal expansion and contraction caused by heat, resulting in a decrease in brightness. The silicone box 10 is restricted by the limiting frame 8 and the limiting rod 12, which can be easily removed to take out the silicone box 10, making it easy to replace the silicone 11 and maintain its heat dissipation effect.

[0027] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A multi-color gamut high-brightness backlight, characterized in that, include: A light strip (1) is fixedly connected to a light guide plate (2) on its side surface. A reflector plate (3) is provided directly below the light guide plate (2). A mounting frame (4) is provided directly above the light guide plate (2). A diffuser plate (5) is fixedly connected to the inner wall of the mounting frame (4). A connecting frame (6) is provided inside the mounting frame (4). A liquid crystal screen (7) is fixedly connected to the inner wall of the connecting frame (6). A limiting frame (8) is slidably connected to a sealing frame (9) on its inner sidewall. A silicone box (10) is slidably connected to the inner sidewall of the sealing frame (9). Silicone (11) is provided inside the silicone box (10). A limiting rod (12) is slidably connected to the inner sidewall of the silicone box (10).

2. The multi-color gamut high-brightness backlight according to claim 1, characterized in that, The diffuser plate (5) is located directly above the light guide plate (2), and the liquid crystal screen (7) is located directly above the diffuser plate (5).

3. The multi-color gamut high-brightness backlight according to claim 1, characterized in that, Bolts (13) are provided between the connecting frame (6) and the mounting frame (4), and there are four bolts (13) located at the four corners of the mounting frame (4).

4. A multi-color gamut high-brightness backlight according to claim 1, characterized in that, A quantum dot film (14) is provided on the upper surface of the liquid crystal screen (7), and the lower edge of the liquid crystal screen (7) is in contact with the upper surface of the mounting frame (4).

5. A multi-color gamut high-brightness backlight according to claim 1, characterized in that, The side surface of the sealing frame (9) is fixedly connected to the side surface of the light strip (1), and the end of the light strip (1) away from the light guide plate (2) is located outside the sealing frame (9).

6. A multi-color gamut high-brightness backlight according to claim 1, characterized in that, The inner wall of the sealing frame (9) is in contact with the side surfaces of the light guide plate (2) and the reflector plate (3), and the silicone box (10) has several and is distributed on three sides of the sealing frame (9).

7. A multi-color gamut high-brightness backlight according to claim 1, characterized in that, The end of the silicone (11) is in contact with the side surfaces of the light guide plate (2) and the reflector plate (3), and the end of the silicone (11) away from the light guide plate (2) is located on the upper surface of the silicone box (10).

8. A multi-color gamut high-brightness backlight according to claim 1, characterized in that, The side surface of the limiting rod (12) is slidably connected to the inner wall of the sealing frame (9), and there are three limiting rods (12) located on three sides of the sealing frame (9).

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