Surface light source, its preparation method and display device using the surface light source

A surface light source, fluorescent film technology, applied in optics, nonlinear optics, instruments, etc., can solve the problem of surface light source return light efficiency loss and other problems, improve reflectivity and overall light efficiency, high excitation energy, and facilitate control Effect

Active Publication Date: 2021-05-28
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the market, because the reflectance of existing white oil inks is difficult to exceed 85%, and at the same time, the organic materials of the ink type have a high absorption value, resulting in a large loss of return light efficiency inside the surface light source. The way to improve the light efficiency of surface light source will create a technical bottleneck

Method used

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  • Surface light source, its preparation method and display device using the surface light source
  • Surface light source, its preparation method and display device using the surface light source
  • Surface light source, its preparation method and display device using the surface light source

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Embodiment Construction

[0035] The following description of the embodiments refers to the accompanying drawings to illustrate specific embodiments in which the invention may be practiced. The directional terms mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc., are only for reference to the attached drawings. direction. Therefore, the directional terms used are used to illustrate and understand the present invention, but not to limit the present invention.

[0036] Such as figure 1 As shown, in one embodiment, the surface light source 100 of the present invention includes a substrate 101 , a wire layer 102 , a specular reflection layer 103 , a high temperature resistant film layer 104 , several LED chips 105 , and a fluorescent film 106 .

[0037] The substrate 101 may be an FPC substrate or a PCB substrate. In this embodiment, the substrate 101 is an FPC flexible substrate.

[0038] The wire layer 102 has several wires 1020 (see fi...

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Abstract

The invention discloses a surface light source, its preparation method and a display device using the surface light source. The surface light source includes a substrate; a wire layer with several wires distributed on a surface of the substrate; a mirror reflection layer, covered on the wire layer; a high temperature resistant film layer, covered on the specular reflection layer; a number of LED chips, distributed on the high temperature resistant film layer and correspondingly connected to the wire; a fluorescent A film covering the LED chip and the high temperature resistant film layer. The surface light source, the preparation method thereof and the display device using the surface light source of the present invention effectively improve the reflectivity and overall light efficiency of the surface light source.

Description

technical field [0001] The invention relates to the fields of flexible display devices, and in particular to a surface light source, a preparation method thereof, and a display device using the surface light source. Background technique [0002] With the continuous development of science and technology, people have more and more frequent contacts with electronic devices, and the requirements for display devices (or display screens) are also constantly increasing. Mini LED display device is a strong competitive product of OLED display device (organic electroluminescent diode display device) in the future market. Mini LED display device has high brightness, flexibility and bendability, can produce high dynamic contrast Technology and many other advantages have become market research hotspots. [0003] However, the current mini LED display devices still have some gaps compared with conventional product backlights and OLED display devices in terms of light extraction efficiency...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L25/075H01L33/60G02F1/13357
CPCG02F1/133603H01L25/0753H01L33/60
Inventor 杨勇
Owner WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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