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Backlight source and assembling method thereof, display panel and display device

A technology for display panels and backlight sources, applied in the directions of light guides, optics, optical components, etc., can solve the problems of reduced light efficiency of backlight sources, cumbersome, and difficult to assemble in place, so as to improve the display effect, improve the backlight effect, and simplify the assembly process. Effect

Inactive Publication Date: 2014-12-24
HEFEI XINSHENG OPTOELECTRONICS TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the assembly process of the above-mentioned backlight source, it is usually necessary to assemble the LED light bar 6 into the backboard 2 first, and the LED light bar 6 is usually made by assembling a plurality of LED lights 61 on the circuit board 12. The material is soft, it is not easy to assemble into the backplane 2, and it is not easy to assemble in place, it must be assembled with an assembly jig, this method is cumbersome and has a high defect rate
In addition, after the LED light bar 6 is assembled, there is likely to be a lateral gap between the LED lamp 61 and the light guide plate 3, which will cause the light emitted by the LED lamp 61 to not be completely incident on the light guide plate 3, resulting in a certain amount of light loss. , so that the light efficiency of the entire backlight is reduced

Method used

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  • Backlight source and assembling method thereof, display panel and display device
  • Backlight source and assembling method thereof, display panel and display device
  • Backlight source and assembling method thereof, display panel and display device

Examples

Experimental program
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Effect test

Embodiment 1

[0030] This embodiment provides a backlight, such as figure 2 and image 3 As shown, it includes a light source 1, a back plate 2, and a light guide plate 3 arranged above the back plate 2. The light source 1 includes a light emitting element 11, and the light guide plate 3 is provided with an accommodation structure 31 at its edge region, and the light emitting element 11 is accommodated in the accommodation Placed in structure 31.

[0031] The light emitting element 11 is accommodated in the accommodating structure 31, so that there is no gap between the light emitting element 11 and the light guide plate 3, so that most of the light emitted by the light emitting element 11 can be incident into the light guide plate 3, Thus, the light utilization rate is improved, and the backlight effect of the backlight source is improved.

[0032] In this embodiment, the light emitting element 11 includes an LED lamp; the accommodating structure 31 is a through hole opened in the light...

Embodiment 2

[0044] This embodiment provides a backlight source. The difference from Embodiment 1 is that Figure 5 As shown, the light-emitting element 11 includes an LED lamp; the accommodating structure 31 is a blind hole opened on the side of the light guide plate 3 facing the backplane 2, and the blind hole is adapted to the size and shape of the LED lamp.

[0045]Correspondingly, the circuit board 12 is pasted on the surface of the light guide plate 3 facing the side of the backplane 2 .

[0046] With such an arrangement, the LED lamp can be just embedded in the blind hole, so that the LED lamp and the blind hole can be fully contacted, and there will be no gap between the two; thus, most of the light emitted by the light-emitting element 11 can be Incident into the light guide plate 3, thereby improving the utilization rate of light, and also improving the backlight effect of the backlight source.

[0047] It should be noted that the accommodating structure 31 can also be a blind h...

Embodiment 3

[0051] This embodiment provides a display panel, including the backlight source in any one of Embodiments 1-2.

[0052] The display effect of the display panel is improved by using the backlight source in any one of Embodiments 1-2.

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Abstract

The invention provides a backlight source and an assembling method thereof, a display panel and a display device. The backlight source comprises a light source, a back plate and light guide plates arranged above the back plate, wherein the light source comprises light-emitting elements; accommodating structures are arranged on the edge areas of the light guide plates; the light-emitting elements are accommodated in the accommodating structures. In the light source, the accommodating structures are arranged on the edge areas of the light guide plates for accommodating the light-emitting elements, and gaps between the light-emitting elements and the light guide plates are avoided, so that most light rays emitted by the light-emitting elements can enter the light guide plates, the utilization ratio of the light rays is increased, and the backlight effect of the backlight source is improved. Meanwhile, the light source can be assembled more conveniently through the light guide plates with the structures, so that the assembling process of the backlight source is simplified greatly, and the rejection ratio in the assembling process of the backlight source is greatly lowered.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a backlight source and an assembly method thereof, a display panel and a display device. Background technique [0002] A liquid crystal display (LCD: Liquid Crystal Display) has become a mainstream product among flat panel display devices due to its small size, low power consumption, and no radiation. A backlight source is a key component in a liquid crystal display device. [0003] Backlights can be divided into direct-type backlights and side-type backlights according to the incidence of light. The side-type backlight is currently widely used because it is more conducive to reducing the thickness of the display panel. Such as figure 1 As shown, in the common side-type backlight design, the LED light bar 6 (LED bar) is usually attached to the inner side of the back panel frame 21, the light-emitting surface 111 of the LED light 61 faces the side of the light guide pl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357G02B6/00
Inventor 于桂洋金珍胡宇飞王榜曹杰陈贺
Owner HEFEI XINSHENG OPTOELECTRONICS TECH CO LTD
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