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White light LED containing liquid quantum dot and preparation method thereof

A technology of quantum dots and quantum dot layers, applied in semiconductor devices, electrical components, circuits, etc., can solve the problems of easy aging of organic polymers, affecting LED light efficiency, poor color reproduction, etc., to improve color rendering index and light color Consistency, slow down the reduction of light effect, and avoid the effects of blue light hazards

Active Publication Date: 2019-05-10
EZHOU INST OF IND TECH HUAZHONG UNIV OF SCI & TECH +1
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Problems solved by technology

[0003] The purpose of the present invention is to provide a white light LED containing liquid quantum dots and its preparation method to solve the problems of blue light hazard, poor color reproduction, easy aging of organic polymers and affecting LED light efficiency in the existing display technology.

Method used

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  • White light LED containing liquid quantum dot and preparation method thereof
  • White light LED containing liquid quantum dot and preparation method thereof

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Embodiment Construction

[0014] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0015] For the first solution provided by this invention, see figure 1 , figure 1 It is a schematic flowchart of an embodiment of a method for preparing a white light LED containing liquid quantum dots. The steps of the method for preparing a white light LED containing liquid quantum dots include: liquid quantum dot dilution S101, preparation of slurry S102, screen printing and drying S103, and low-temperature sintering S104 , encapsulate and cure S105. The ...

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Abstract

The invention discloses a white light LED containing a liquid quantum dot, and a preparation method thereof. The preparation method of the white light LED containing a liquid quantum dot comprises thefollowing steps: diluting the liquid quantum dot, configuring slurry, printing and drying screen mesh, sintering at low temperature, packaging and solidifying. The invention effectively avoids blue light hazard, obviously improves the color rendering index and the consistency of light color of the white light LED, reduces the color temperature of LED, and effectively slows down light efficiency reduction caused by aging of organic polymer.

Description

technical field [0001] The invention relates to the field of semiconductor optoelectronics, in particular to a white light LED containing liquid quantum dots and a preparation method thereof. Background technique [0002] Light-emitting diode (LED) is a semiconductor light-emitting device based on the principle of P-N junction electroluminescence. It has the advantages of high brightness, low power consumption, long life, fast start-up, low power, no flicker, and is not easy to cause visual fatigue. It has been widely used in lighting and backlight display fields, such as indoor lighting, car headlights, landscape lighting, video screens and plant lighting. At present, the mainstream semiconductor display technology means that blue light InGaN chip excites yellow YAG phosphor to produce white light, that is, blue light excites yellow phosphor to emit yellow light, and yellow light and blue light mix to emit white light. However, due to the lack of red light components, the t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L33/50
Inventor 王昊彭洋梁仁瓅许琳琳王安格戴江南陈长清
Owner EZHOU INST OF IND TECH HUAZHONG UNIV OF SCI & TECH
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