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An edge-lit backlight module and a display device

An edge-type backlight and module technology are applied in the field of edge-type backlight modules and display devices to achieve the effects of improving light energy efficiency and improving utilization.

Active Publication Date: 2021-03-02
HISENSE VISUAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above deficiencies in the prior art, the purpose of the present invention is to provide a side-type backlight module and a display device, which can improve the problem of light shadows caused by excessive LED lamp spacing in the backlight module, and protect the LEDs from being affected by the expansion of the light guide plate. , improve the light energy efficiency, and then achieve the purpose of high efficiency and low cost

Method used

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  • An edge-lit backlight module and a display device
  • An edge-lit backlight module and a display device
  • An edge-lit backlight module and a display device

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Embodiment Construction

[0017] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0018] figure 1 The liquid crystal display device provided by the present invention includes a liquid crystal panel 1 and a side-type backlight module 2, the liquid crystal panel 1 and the light-emitting surface of the side-type backlight module 2 are arranged oppositely, and the side-type backlight module 2 includes LED light bar 21, reflector 22, light guide plate 23, optical film 24 and plastic frame 25, reflector 22 is positioned at the bottom of light guide plate 23, optical film 24 is positioned at the light exit surface of light guide plate 23, optical film 24 and liquid crystal The panels 1 face each other. The LED light bar 21 is fixed on the plastic frame 25 and is located on the light incident side of the light guide plate 23 .

[0019] It should be noted that, in addition to figure 1 In addition to the ...

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Abstract

The present invention provides a side-entry backlight module, which includes a light guide plate and an LED light bar, and the LED light bar includes a circuit board and a plurality of LED lights arranged on the circuit board, wherein two adjacent LED lights A light guide block is arranged between the lamps, and the light guide block includes at least a light incident surface and a light exit surface, the light incident surface is adjacent to the LED lamp, and the light exit surface is connected to the light incident surface of the light guide plate. set side by side. After entering the light guide block, the light emitted from the side of the LED lamp in the backlight module is emitted from the light-emitting surface of the light guide block and enters the gap between the two LED lamps, which effectively improves the gap due to the excessive distance between the LED lamps. The light shadow problem caused by less light improves the utilization rate of the light emitted by the LED, thereby improving the light energy efficiency. Effect of light panel expansion.

Description

technical field [0001] The present application relates to the field of display technology, in particular to an edge-type backlight module and a display device. Background technique [0002] The backlight module is one of the key components of the display. The existing backlight modules are divided into side-type backlight modules and direct-type backlight modules. LED is a commonly used backlight source, and the arrangement mode of LED affects the display effect and cost. With the advancement of LED technology, the luminous efficiency of a single lamp is gradually improving. If the side-type backlight module is still designed according to the previous LED arrangement mode, it will cause a waste of cost due to excessive brightness margin. However, simply reducing the number of LEDs and increasing the distance between lights will aggravate the subjective light shadow problem, and it is difficult to adjust and shield through light guide plates and diaphragms. At the same time...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/13357
CPCG02F1/133603G02F1/133606G02F1/133615G02F1/133607
Inventor 杨洲高上曹晓梅文喜平
Owner HISENSE VISUAL TECH CO LTD
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