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LED backlight module

A technology for a backlight module and an LED substrate, applied in the field of backlight modules, can solve the problems of cumbersome, serious, labor-consuming, etc., and achieve the effect of saving labor hours and being easy to assemble and disassemble

Inactive Publication Date: 2009-09-09
上海广电光电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The above-mentioned backlight module structure is cumbersome and labor-intensive in the process of assembling and reworking the LED substrate, and as the size of the LCD panel becomes larger and larger, the number and size of the required light bars and substrates also increase. The disadvantages of LED substrate fixing methods are more prominent

Method used

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Examples

Experimental program
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Embodiment 1

[0038] FIG. 3 is a schematic diagram of the fixing of the backlight module to the strip-shaped LED substrate of the present invention.

[0039] Figure 3A is the front view, Figure 3B for along Figure 3A The cross-sectional view of the A-A line in the middle, Figure 3A For the back view, this embodiment implements the fixing of the strip-shaped LED substrate. See Figure 3A , the LED backlight module in this embodiment includes a backboard 31; one or more LED lamp boards are placed on the backboard 31, and the LED lamp boards include an LED substrate 321 and a plurality of LED light sources; The light guide plate is placed on the LED substrate; wherein, the LED backlight module further includes a fixing part 33, a fixing groove 331 is formed on the front side of the fixing part 33, a mushroom-shaped hook 332 is formed on the back side, and the two sides of the LED substrate 321 There are two more protruding clamping ends 3211 on each side, so as to cooperate with the f...

Embodiment 2

[0041] FIG. 4 is another schematic diagram of fixing the backlight module to the strip-shaped LED substrate according to the present invention.

[0042] Please refer to Figure 4, Figure 4A is the front view, Figure 4B for along Figure 4A The cross-sectional view of the B-B line in the middle, Figure 4CFor the rear view, this embodiment provides another fixing method for the strip-shaped LED substrate. Compared with Embodiment 1, the reverse side of the fixing part 43 in this embodiment adopts a cylindrical protrusion 432, and a long perforation 412 is also used on the back plate 41 to cooperate with it. The long perforation 412 includes two through-connected long perforation start ends 4121 (bigger perforation) and strip perforation end 4122 (smaller perforation), when assembled, the cylindrical protrusion 432 extends into the larger perforation, that is, the beginning of the long perforation 4121, when the protrusion of the LED substrate 421 is clamped After the end 4...

Embodiment 3

[0044] FIG. 5 is a schematic diagram of fixing the backlight module of the present invention to a large LED substrate.

[0045] Please refer to Figure 5, Figure 5A is the front view, Figure 5B for along Figure 5A The cross-sectional view of the C-C line in the middle, Figure 5C It is a back view. In this embodiment, the large piece of LED substrate 521 is fixed. The front and back of the fixing part 53 are provided with mushroom-shaped hooks 531 and 532. When assembling, the mushroom-shaped hooks 532 on the back side of the fixing part 53 Extending into the circular perforation 512 fixed on the back plate, the large LED substrate 521 is also provided with a circular perforation and the mushroom-shaped hook 531 on the front of the fixing part 53 is fitted together. When assembling, it is only necessary to directly place the large LED substrate 521 is pressed down, and the mushroom-shaped hook 531 can securely fix the substrate. The disassembly of the substrate is the sa...

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PUM

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Abstract

The invention relates to an LED backlight module, The LED backlight module comprises a back plate, one or more LED light panels and a light guide plate. The LED light panels are arranged on the back plate, and comprise an LED substrate and a plurality of LED light sources; and the light guide plate is arranged on the LED substrate. The LED backlight module further comprises a fixing part, wherein, clamping parts are formed on the front and the back of the fixing part, clamping ends or clamping holes matched with the clamping parts are formed on the LED substrate and the back plate, the front of the fixing part is connected with the LED substrate in a clamping manner, and the back of the fixed part is connected with the back plate in the clamping manner. The LED backlight module can be easily assembled and disassembled, thus saving working hours.

Description

technical field [0001] The invention relates to a backlight module, in particular to a direct type LED backlight module. Background technique [0002] Liquid crystal display devices (LCDs) have been widely used in various terminal display devices of large, medium and small sizes due to their light weight, small volume, and thin thickness. Since the liquid crystal itself does not emit light in the LCD panel, it is necessary to provide a light source to achieve the display function, such as the backlight module. The backbone modules can be divided into side-light backlight modules and direct-type backlight modules according to different results. [0003] With the continuous expansion of the application field of liquid crystal displays, especially the application of large-size liquid crystal displays, such as LCD TVs, the requirements for the brightness of the backlight module of the liquid crystal display are further increased, and more light-emitting elements are needed to im...

Claims

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Application Information

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IPC IPC(8): F21S8/00F21V19/00F21V17/10G02F1/13357F21Y101/02F21Y115/10
Inventor 何永新蔡文彬
Owner 上海广电光电子有限公司
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