Direct type backlight module comprising perforated layer

A backlight module, direct type technology, applied in the field of backlight, to ensure uniformity and good display effect

Pending Publication Date: 2019-12-06
HUIZHOU WAI CHI ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The direct-type backlight module is a common backlight module, but the conventional direct-type backlight module cannot meet some displays with special requirements such as high luminous uniformity and regional light control.

Method used

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  • Direct type backlight module comprising perforated layer
  • Direct type backlight module comprising perforated layer
  • Direct type backlight module comprising perforated layer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] refer to Figure 1~16 The invention discloses a direct-type backlight module including a perforated layer, which is used to improve the uniformity of light emission of the backlight module, and can also be used as a backlight module of a display with regional light control. What is shown in the figure of this embodiment is a special-shaped backlight module similar to a parallelogram structure, but in practice, it can also be a normal quadrilateral module or a backlight module with other special-shaped structures. The backlight module includes a lower shell 1 , a direct-type light source 2 , a reflector 3 , a perforated layer 4 , a diffuser assembly 5 and an upper frame 6 .

[0035] refer to Figure 15 , the lower shell 1 is a structure with a flat bottom and sides around it. Generally, a metal shell is used to enhance the heat dissipation performance, and it can be formed by stamping. refer to Figure 14 , the direct-type light source 2 can use a whole piece of light...

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PUM

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Abstract

The invention discloses a direct type backlight module comprising a perforated layer. The backlight module comprises a lower shell, a direct type light source, a reflecting cover, the perforated layer, a light scattering assembly and an upper frame. The direct type light source is fixed in the lower shell; the reflecting cover is arranged on the direct type light source; the perforated layer and the light scattering assembly are sequentially stacked on the reflecting cover; and the reflecting cover, the perforated layer and the light scattering assembly are pressed and fixed in the lower shellthrough the upper frame. A plurality of LED light sources are arranged on the direct type light source; a plurality of reflection cups are arranged on the reflecting cover; a plurality of perforationunits are arranged on the perforated layer; a plurality of perforations are formed in each perforation unit; each LED light source is arranged on the bottom of one corresponding reflection cup; and each perforation unit is arranged right above the corresponding reflection cup. The method is used for optimizing light emitting uniformity of the backlight module.

Description

technical field [0001] The invention relates to the technical field of backlight sources, in particular to a direct-lit backlight module including a perforated layer. Background technique [0002] With the advancement of science and technology and the improvement of living standards, displays have become an important tool for people to obtain and interact with information. Visual information can be displayed through the display, and information can be exchanged with other people or media by setting a touch structure on the display. Liquid crystal display is the most commonly used display, but liquid crystal display cannot emit light by itself, and needs a backlight module to provide light source for it, so the uniformity of LCD screen brightness is directly affected by the backlight module, and regional light control also needs to pass through the backlight module to complete. The direct-type backlight module is a common backlight module, but the conventional direct-type ba...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357
CPCG02F1/133603G02F1/133611
Inventor 罗增昌姚志图黄磊刘启玉贺成林彭环洋
Owner HUIZHOU WAI CHI ELECTRONICS CO LTD
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