Direct type backlight module and display device including same

A technology for backlight modules and display devices, applied in optics, nonlinear optics, instruments, etc., can solve problems such as uneven distribution of light intensity of outgoing light, and achieve the effect of consistent picture experience and uniform chromaticity

Active Publication Date: 2020-09-15
NANJING TECH CORP 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 application is to provide a direct-type backlight module and a display device including the same, so as to solve the problem of uneven light intensity distribution of the outgoing light of the direct-type backlight module in the prior art

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Such as Figure 4 As shown, the display device includes a direct-type backlight module and a display module, and the LED light source is a blue light source. The specific structure of the direct-type backlight module and the display module is shown in the figure, and the light conversion film is a quantum dot film , in the direct-type backlight module, the light-absorbing film is arranged on the surfaces of the four side reflective films, and the light-absorbing film arranged on each side reflective film only covers part of the surface of the side reflective film, wherein the wavelength of light absorbed by the light-absorbing film is 590-610nm, the light-absorbing material of the light-absorbing film is a dye.

Embodiment 2

[0044] The difference from Embodiment 1 is that the light-absorbing film of each side reflective film covers the entire surface of the side reflective film.

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PUM

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Abstract

The invention provides a bottom lighting module and a display device including the same. The bottom lighting module comprises at least one LED light source, a reflective film supporter with an opening, a reflective film, a light absorbing film and a light conversion film. The reflective film supporter comprises a bottom plate and at least three side plates. The projection of the bottom plate on the plane of the opening is inside the opening. Each LED light source is arranged on the surface of the bottom plate. The reflective film comprises a bottom reflective film and at least three side reflective films. The bottom reflective film is arranged on the surface of the bottom plate and comprises a plurality of holes in one-by-one correspondence to the LED light source for adaption. Each LED light source is arranged to pass one of the holes. Each side reflective film is installed on each side plate. The light absorption film is arranged on at least a part of the surface of at least one of the side reflective films, the part of the surface being far from the side plate, and the light absorption film is used to absorb light. The light conversion film arranged at the opening is far from the LED light source and is used to convert light emitted by the LED light source into white light.

Description

technical field [0001] The present application relates to the fields of illumination and display, and in particular, to a direct-lit backlight module and a display device including the same. Background technique [0002] In the prior art, the chromaticity of the edge area and the central area of ​​the picture in the direct-lit backlight module is different and uneven, and a solution is needed. Contents of the invention [0003] The main purpose of the present application is to provide a direct-type backlight module and a display device including the same, so as to solve the problem of non-uniform light intensity distribution of the outgoing light of the direct-type backlight module in the prior art. [0004] In order to achieve the above object, according to one aspect of the present application, a direct-type backlight module is provided, the direct-type backlight module includes: at least one LED light source; a reflective film support body with an opening, including a b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/13357
CPCG02F1/133611
Inventor 尹侠康永印赵飞杜向鹏
Owner NANJING TECH CORP LTD
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