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Backlight module

A backlight module, white light technology, applied in optics, optical components, instruments, etc., can solve the problems of high price and high cost of backlight modules, and achieve the effect of small light energy loss, low light conversion rate, and rich screen colors.

Pending Publication Date: 2022-01-18
CHANGZHOU ALMADEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Due to the increasing demand of consumers for the color of the display, the backlight method of blue light + quantum dots can effectively improve the color gamut of the display, making the picture more colorful and saturated; but due to the high price of quantum dot materials, blue light + quantum dots The cost of the backlight module in the form of

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] This embodiment provides a white light direct-lit backlight module using white light LEDs as light sources.

[0041] see figure 1As shown, the white light direct-lit backlight module includes a white light LED lamp panel 1, and a first glass plate 22, a hot-melt adhesive film 21, a second glass plate 23, and an optical film 24 arranged in sequence; wherein the white light LED lamp panel 1 The color temperature is 13000K; the total solid content of quantum dots in the hot melt adhesive film 21 is 1wt‰, and the ratio of red and green quantum dots is 1:4; the optical film 24 is a DBEF film.

[0042] The optical performance of the backlight module was tested, and the test results are shown in Table 1.

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Abstract

The invention provides a backlight module. The backlight module comprises a white light LED lamp panel and a diffusion plate; the diffusion plate comprises a hot melt adhesive film, and the hot melt adhesive film comprises quantum dots; and the solid content of the quantum dots is 0.05 wt%-0.1 wt%. Compared with a traditional white light source backlight assembly, the backlight module provided by the invention has the advantages that a small amount of quantum dot materials are added, so that the color gamut of the backlight module is improved, the color of a picture is richer, and the saturation degree is higher; meanwhile, compared with an existing blue light source backlight module, the use amount of the quantum dots can be reduced by 5-10 times, the use amount of the quantum dots is greatly reduced, and the cost is reduced; and moreover, the use amount of the quantum dots is reduced, and the light conversion rate is low, so that the corresponding light energy loss is small, and the brightness loss of the backlight module is small.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a backlight module. Background technique [0002] Due to the increasing demand of consumers for the color of the display, the backlight method of blue light + quantum dots can effectively improve the color gamut of the display, making the picture richer in color and higher in saturation; however, due to the high price of quantum dot materials, blue light + quantum dots The cost of the backlight module of the form is relatively high. Contents of the invention [0003] The problem solved by the invention is that the cost of the current backlight module is relatively high. [0004] In order to solve the above problems, the present invention provides a backlight module, including a white LED lamp board and a diffusion plate; the diffusion plate includes a hot-melt adhesive film, and the hot-melt adhesive film includes quantum dots; the solid state of the quantum dots The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09F9/00G02B5/02
CPCG09F9/00G02B5/0242
Inventor 陈雪莲朱振辉叶茂村林俊良林金汉林金锡
Owner CHANGZHOU ALMADEN
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