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Brightness enhancement film and preparation method thereof, backlight module and display device

A technology of backlight module and brightness enhancement film, which is applied in the fields of backlight module, brightness enhancement film and its preparation, and display devices, can solve the problems of increasing the thickness and cost of MiniLED backlight, so as to improve product competitiveness and reduce thickness and cost. Effect

Inactive Publication Date: 2021-09-07
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a brightness enhancement film, which is used to solve the technical problem that the Mini LED backlight in the prior art needs to be additionally equipped with a quantum dot film, resulting in a greatly increased thickness and cost of the Mini LED backlight.

Method used

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  • Brightness enhancement film and preparation method thereof, backlight module and display device
  • Brightness enhancement film and preparation method thereof, backlight module and display device
  • Brightness enhancement film and preparation method thereof, backlight module and display device

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Embodiment Construction

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. In the drawings, for clarity and ease of understanding and description, the size and thickness of the components shown in the drawings are not in scale.

[0030] Such as figure 1 As shown, it is a schematic diagram of the basic structure of the brightness enhancement film provided by the embodiment of the present invention. The brightness enhancement film 10 includes a base 101 and a color conversion layer 102 disposed on one side surface of the base 101. The color conversion layer 102 It includes a plurality of concentrating units 1021 arranged continuously, and the longitudinal section width of any one of the concentrating units 1021 gradually decreases along the side away from the substrate 101; wherein, the color conversion layer 102 is provided with quantum dot materials ....

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Abstract

The invention provides a brightness enhancement film and a preparation method thereof, a backlight module and a display device. The brightness enhancement film comprises a substrate and a color conversion layer arranged on the surface of one side of the substrate, the color conversion layer comprises a plurality of light condensation units which are continuously arranged, and the width of the longitudinal section of any light condensation unit is gradually reduced along the side away from the substrate; wherein a quantum dot material is arranged in the color conversion layer. According to the backlight module, the quantum dot material is arranged in the brightness enhancement film, a quantum dot film does not need to be additionally arranged, so that the thickness and the cost of the backlight module can be reduced, and the color conversion layer in the brightness enhancement film can convert light emitted by the micro light-emitting diodes into white light and can also play a role in light condensation of the brightness enhancement film.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a brightness enhancement film and a preparation method thereof, a backlight module and a display device. Background technique [0002] Mini LED (Mini Light Emitting Diode, Micro Light Emitting Diode) backlight has the advantages of adjustable regional brightness, high color rendering, and high contrast. At the same time, features such as thinner thickness, more power saving, and bendability also make its application more flexible. Most importantly, compared with OLED (Organic Light Emitting Diode, Organic Light Emitting Diode), Mini LED has lower cost, longer life, and no risk of screen burn-in. [0003] The existing Mini LED backlight structure adopts a direct-lit backlight, which greatly reduces the size of the LED grain. The basic structure of Mini LED backlight includes Mini LED light board, quantum dot film, diffusion plate, brightness enhancement film, back plate, etc. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09F9/00
CPCG09F9/00
Inventor 刘广坤
Owner WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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