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Backlight module and liquid crystal display device

A backlight module and light source technology, which is applied to lighting devices, fixed lighting devices, lighting device components, etc., can solve the problems of unfavorable energy conservation and environmental protection, high manufacturing cost of backlight modules, high energy consumption of light sources of backlight modules, and achieve The effect of reducing cost and energy consumption and reducing the number of chips used

Active Publication Date: 2012-12-26
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. The use of a large number of MCPCBs and LEDs leads to high manufacturing costs of the backlight module;
[0005] 2. The energy consumption of the light source of the backlight module is high, which is not conducive to energy saving and environmental protection

Method used

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  • Backlight module and liquid crystal display device
  • Backlight module and liquid crystal display device
  • Backlight module and liquid crystal display device

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Embodiment Construction

[0026] Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

[0027] Such as Figure 1-Figure 4 As shown, the embodiment of the present invention provides a backlight module including: a light source and a light guide plate 3, the light source includes: a light source body 1 and a lampshade 2, and the lampshade 2 surrounds the outer peripheral edge of the light guide plate 3 to form a hollow through cavity 4 , at least one lampshade opening 21 is opened through the cavity 4;

[0028] The light source body 1 is fixed at the lampshade opening 21 , and the light emitting surface of the light source body faces the inside of the through cavity 4 .

[0029] The backlight module of the present invention reduces the number of LEDs used and the amount of circuit boards used by designing a new light source structure, thereby reducing product costs and energy consumption. The structure of the backlight module will be descri...

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Abstract

The invention discloses a backlight module which comprises a light source and a light guide plate, and is characterized in that the light source comprises a light source body and a lamp cover, wherein the lamp cover is surrounded and baffled on the peripheral edge of the light guide plate to form a hollow through cavity, and the through cavity is provided with at least one lamp cover opening; the light source body is fixed on the lamp cover opening, and a light outlet surface of the light source body faces towards the inside of the through cavity. The invention also discloses a liquid crystal display device of the backlight module structure. By using the backlight module and the liquid crystal display device adopting the backlight module, the using quantity of LEDs in the backlight module and the consumption of circuit boards are reduced, and cost and energy consumption are reduced.

Description

technical field [0001] The invention relates to the field of liquid crystal display, in particular to a backlight module and a liquid crystal display device. Background technique [0002] The liquid crystal display device includes a display module. In order to display images, the display module needs to use a backlight to provide a light source. The existing backlight is mainly CCFL (Cold Cathode Fluorescent Lamp, cold cathode fluorescent lamp) and LED (Light Emitting Diode, Light Emitting Diode). At present, LED is a new type of light source, which has the advantages of high brightness and low power consumption. Therefore, LED backlight designs are gradually increasing, which is also a development trend of future design. [0003] Such as Figure 5 As shown in FIG. 2 , it is a schematic diagram of a partial cross-sectional structure of a backlight module in the prior art. Among them, the light source structure of the existing backlight module is generally to fix multiple L...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S8/00F21V13/04G02F1/13357F21Y101/02
CPCG02B6/0031G02F1/1335G02B6/0091G02F1/133615
Inventor 程加河
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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