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Direct type backlight module

A backlight module, direct-type technology, applied in the field of direct-type backlight modules, can solve the problems of constraints, inability to realize uniform surface light source and thinness at the same time, reduce the number of uses, improve light intensity and uniformity, and realize thinness effect

Active Publication Date: 2014-12-17
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the light emitting plane 202 of the LED light bar 200 is parallel to the light incident surface 402 of the diffuser plate 400, which makes the light mixing distance of the LED light bar 200 restricted by the thickness of the backlight module, and it is impossible to achieve a uniform surface light source and thinness at the same time.

Method used

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Embodiment Construction

[0026] In order to further illustrate the technical means adopted by the present invention and its effects, a detailed description is given below in conjunction with the preferred embodiments of the present invention and the accompanying drawings.

[0027] see figure 2 and image 3 The present invention provides a direct type backlight module, comprising: a backplane 10, a plurality of backlight sources 20 installed in the backplane 10, and a diffuser plate 30 installed on the backplane 10 and located above the backlight sources 20, thereby forming Direct type backlight module.

[0028] The back plate 10 includes a bottom plate 12, a side plate 14 connected to the side edge of the bottom plate 12, and a plurality of mounting units 16 arranged on the bottom plate 12. Board 14 forms a backlight cavity 142 .

[0029] Each mounting unit 16 has a first inclined surface 162 and a second inclined surface 164 opposite to the inclined direction of the first inclined surface 162. Th...

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Abstract

A direct type backlight module comprises a backplane (10), a plurality of backlight sources (20) installed in the backplane (10) and a diffusion plate (30) installed on the backplane (10) and located above the backlight source (20). The backplane comprises a baseplate (12), a side plate (14) connected to a side edge of the baseplate and a plurality of installation units (16) arranged on the baseplate, each of the installation units (16) being provided with a first inclined plane (162) and a second inclined plane (164) which is in an inclined direction opposite to that of the first inclined plane; the backlight sources (20) are installed on the first inclined plane and the second inclined plane separately, so that the backlight sources (20) are arranged in an inclined manner relative to the diffusion plate (30), so as to increase a mixed light distance, improve illumination intensity and uniformity, reduce the number of used light-emitting diode (LED) lamps, and facilitate thinning of the backlight module.

Description

technical field [0001] The invention relates to the field of liquid crystal display, in particular to a direct type backlight module capable of enhancing the degree of light mixing. Background technique [0002] Liquid Crystal Display (LCD, Liquid Crystal Display) has many advantages such as thin body, power saving, no radiation, etc., and has been widely used. Most of the liquid crystal display devices on the current market are backlight type liquid crystal display devices, which include a liquid crystal panel and a backlight module. The working principle of the liquid crystal panel is to place liquid crystal molecules in two parallel glass substrates. There are many vertical and horizontal small wires between the two glass substrates. The direction of the liquid crystal molecules is controlled by whether the power is turned on or not, and the light of the backlight module is refracted. out to produce a picture. Since the liquid crystal panel itself does not emit light, i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21S8/00F21V19/00F21V13/00G02F1/13357F21Y101/02
CPCG02F1/133603G02F1/133611
Inventor 黄建发
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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