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Backlight unit, backlight module and display device

A technology of backlight unit and backlight module, which is applied in the field of backlight module and display device, backlight unit and backlight module, can solve the problem of high cost, and achieve the effect of cost saving and thickness saving

Active Publication Date: 2016-01-27
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The thickness of the direct type is thicker. In order to reduce the thickness of the light box, it is mainly realized by increasing the number of lights or increasing the LED lens to expand the light distribution. Using these two methods, the cost is higher in the case of large size

Method used

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  • Backlight unit, backlight module and display device
  • Backlight unit, backlight module and display device
  • Backlight unit, backlight module and display device

Examples

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Embodiment Construction

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0023] see figure 1 and figure 2 , the present invention is a backlight unit and a backlight module 10, the backlight unit is used as a light source of the backlight module, and the backlight module is used in a display device to provide a light source for the display device. The backlight module 10 is a direct type, and includes a backplane 11 , several backlight units 13 and a diffusion plate 15 . The back plate 11 forms a receiving groove 12 . The backlight unit 13 includes a main reflector 131 , a light guide plate 132 disposed on a reflective surface of the main reflector 131 , a light source 133 and a secondary reflector 134 . The light guide plate 132 includes a light emitting surface 135 and a groove 136 located in the middle of the light emitting surface, and the ...

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PUM

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Abstract

The invention provides a backlight module, which comprises a backboard, a plurality of backlight units and a diffusion plate, and is characterized in that the backboard forms an accommodating tank, each backlight unit comprises a main reflecting piece, a light guide plate arranged on a reflecting surface of the main reflecting piece, a lamp source and an auxiliary reflecting piece; the light guide plate comprises a light emitting surface and a groove located at the middle part of the light emitting surface, the lamp source is arranged in the groove, the auxiliary reflecting piece is installed on the light emitting surface and covers the groove, and a reflecting surface of the auxiliary reflecting piece faces towards the lamp source; and the plurality of backlight units are arranged at the bottom surface of the accommodating tank at intervals, and the diffusion plate closes the accommodating tank and is arranged opposite to the light emitting surface. The invention further discloses a display device.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a backlight unit, a backlight module, a backlight module and a display device. Background technique [0002] Liquid crystal displays are the dominant display device technology in the market today. All display devices require a backlight as a light source to illuminate the liquid crystal display. Traditional backlight modules are mainly divided into direct-type backlights and side-type backlights. Edge-lit backlights require a light guide plate, and the larger the size of the light guide plate, the higher the cost. The thickness of the direct type is thicker. In order to reduce the thickness of the light box, it is mainly achieved by increasing the number of lights or increasing the LED lens to expand the light distribution. Using these two methods, the cost is higher in the case of a large size. [0003] Therefore, as the competition of display devices such as large-size disp...

Claims

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Application Information

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IPC IPC(8): G02F1/13357G02B6/00
CPCG02B6/0021G02B6/0031G02F1/133605G02F1/133606G02F1/133607G02B6/0078G02B6/0088G02F1/133628G02F1/133524G02F1/133603G02F1/133608
Inventor 樊勇
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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