Backlight module and display device using same

A technology for a backlight module and a light source device, which is applied to lighting devices, fixed lighting devices, and components of lighting devices, etc., can solve the problem of limiting the light-emitting angle of LED lamps, the thickness of the backlight module is large, and the light incident angle of the light guide plate 1' is small. and other problems, to achieve the effect of improving display quality, reducing cost, and reducing overall thickness

Active Publication Date: 2013-04-03
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The thickness of the backlight module with this structure is largely determined by the thickness of the LED lamp. Due to the existence of the lamp cavity 10, the thickness of the backlight module with this structure is relatively large; a

Method used

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  • Backlight module and display device using same
  • Backlight module and display device using same
  • Backlight module and display device using same

Examples

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Example Embodiment

[0021] Such as figure 2 , image 3 As shown, the embodiment of the backlight module of the present invention includes a light guide plate and a light source device 2 arranged on the outside of the side surface of the light guide plate 1. The light source device 2 includes an LED chip 3 with a light emitting surface directly facing the side surface of the light guide plate 1, and the light source device 2 No lamp cavity for packaging the LED chip 3 is provided.

[0022] The light source device in the backlight module of the present invention eliminates the lamp cavity in the prior art, so that the size of the light source device is reduced, so that the thickness of the backlight module will be reduced accordingly. Elimination of the lamp cavity can also increase the light-emitting angle of the light source device. There is no lamp cavity restriction. The light from all sides of the LED chip will enter the light guide plate from the side, so that the light incident angle of the li...

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Abstract

The invention provides a backlight module and a display device using the same. The backlight module comprises a light guide plate and a light source device; the light source device comprises an LED (Light-Emitting Diode) chip of which the light extraction surface is directly towards the lateral surface of the light guide plate. The display device using the backlight module, which is provided by the invention, comprises the backlight module. According to the light source device in the backlight module provided by the invention, due to the cancel of a lamp cavity, the size can be greatly reduced, so that the thickness of the backlight module can further be correspondingly reduced. Due to the cancel of the lamp cavity, a light emitting angle of the light source device can further be increased and light emitted by each surface of the LED chip can enter the light guide plate from the lateral surface, so that a light entrance angle of the light which enters the light guide plate is greatly increased, and thus, light entrance spots are avoided and brightness of the backlight module is further promoted. The display device using the backlight module, which is provided by the invention, adopts the backlight module provided by the invention, so that the overall thickness of the display device can be reduced, the cost can be further reduced and the display quality of the display device is greatly improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a backlight module and a display device using the backlight module. Background technique [0002] The backlight module is one of the important components of the liquid crystal display. Since the liquid crystal itself does not emit light, the function of the backlight module is to supply sufficient brightness and evenly distributed light source, so that the liquid crystal display can display images normally. At present, the display technology of liquid crystal display has become mature, especially in the design of the backlight module. In addition to being used in liquid crystal display devices such as liquid crystal displays and liquid crystal televisions, backlight modules can also provide light sources for display devices such as digital photo frames, electronic paper, and mobile phones. [0003] The backlight module is divided into an edge-type backlight module and a direct-...

Claims

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Application Information

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IPC IPC(8): F21S8/00F21V19/00G02F1/13357F21Y101/02
Inventor 王培娜王鑫
Owner BOE TECH GRP CO LTD
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