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Direct type backlight module and display device

A backlight module, direct type technology, applied in lighting devices, fixed lighting devices, lighting device parts, etc., can solve the problems of forming regional light spots, incomplete mixing of light energy from mixing distances, etc., to avoid regional The effect of increasing the light spot and mixing distance

Inactive Publication Date: 2018-01-09
SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide a direct-type backlight module and a display device, aiming to solve the problem of regional light spots formed in the traditional direct-type backlight module because the light mixing distance is too small so that the light energy is not completely mixed

Method used

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  • Direct type backlight module and display device
  • Direct type backlight module and display device
  • Direct type backlight module and display device

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Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0026] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

[0027] In addition, in t...

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Abstract

The invention discloses a direct type backlight module and a display device. The direct type backlight module comprises a back plate, a reflecting piece, a diffusion plate, multiple light sources anda lens arranged above the light sources in a covering manner. The back plate comprises a bottom plate and a side plate arranged around the bottom plate. A first cavity is formed between the bottom plate and the side plate. The first cavity is sealed by the diffusion plate. The reflecting piece is arranged on the bottom plate and the side plate. The light sources and the lens are located in the first cavity and are arranged on the side plate. The lens comprises a lattice point part and a smooth part opposite to the lattice point part, and the smooth part is close to the bottom plate. The lightmixing distance of light rays of the light sources of the direct type backlight module in the first cavity is greatly increased so that light energy of all the light sources can be sufficiently mixed,uniform energy distribution is formed on the diffusion plate finally, regional light spots are avoided, and therefore the ultrathin direct type backlight module can be achieved on the premise that cost is not increased.

Description

technical field [0001] The invention relates to the field of electrical appliances, in particular to a direct-lit backlight module and a display device. Background technique [0002] see Figure 1 to Figure 3 , in the traditional direct-type backlight module, the light sources such as LED lamps are fixed on the bottom surface of the backplane cavity, the reflector 2 is arranged in the backplane cavity, and the diffuser plate 1 is placed on the top platform of the backplane cavity and supported by Supported by the columns 7, the light emitted by the LED lamp is directly or indirectly projected onto the diffuser plate 3 through the reflection sheet 2. The distance from the light-emitting surface of the LED lamp to the lower surface of the diffuser plate 3 is called the light mixing distance h. The larger the light mixing distance h, the more space for the light energy emitted by each LED lamp to mix and scatter in the cavity of the back plate, and finally the diffuser plate 3 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S8/00F21V13/12F21V5/04F21Y115/10F21Y105/16
Inventor 刘欣沈思宽李霞
Owner SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD
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