Quantum dot light-emitting element

A quantum dot light-emitting and quantum dot technology, which is applied in the field of quantum dot light-emitting elements, can solve the problems of consuming blue light and the white light index cannot meet the requirements, and achieve the effect of saving materials

Active Publication Date: 2019-02-22
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the traditional method is to mix blue quantum dots and red quantum dots, that is, green quantum dots. The light emitted by the blue quantum dots will be absorbed by the surrounding green and red quantum dots, thereby consuming part of the blue light. The emitted white light index does not meet the requirements

Method used

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  • Quantum dot light-emitting element
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  • Quantum dot light-emitting element

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no. 1 example

[0032] Please combine figure 1 see further figure 2 , figure 2 It is a schematic structural diagram of the quantum dot light-emitting layer of the quantum dot light-emitting element in the first embodiment of the present invention. In this embodiment, the quantum dot light emitting layer 21 is rectangular and the blue light emitting unit 211 is disposed between the red light emitting unit 213 and the green light emitting unit 212 .

[0033] Preferably, the red light emitting unit 213 , the blue light emitting unit 211 and the green light emitting unit 212 are sequentially distributed along a diagonal direction of the rectangular quantum dot light emitting layer 21 .

[0034] More preferably, the area ratio of the blue light emitting unit 211 , the green light emitting unit 212 , and the red light emitting unit 213 is (10˜14):(6˜9):1.

[0035] Combined with Table 1 below, preferably, the area ratio of the blue light emitting unit 211, the green light emitting unit 212 and ...

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Abstract

The invention discloses a quantum dot light-emitting element. The quantum dot light-emitting element comprises a quantum dot light-emitting layer and a main structure layer arranged on both sides of the quantum dot light-emitting layer. The quantum dot light-emitting layer includes a red light-emitting unit, a green light-emitting unit and a blue light-emitting unit. The red light-emitting unit includes red quantum dots, the green light-emitting unit includes green quantum dots, and the blue light-emitting unit includes blue quantum dots, and the blue quantum dots are more than the green quantum dots, and the green quantum dots are more than the red quantum dots. Through the above method, the present invention can save quantum dot materials and emit relatively pure white light.

Description

technical field [0001] The invention relates to the field of light emitting devices, in particular to a quantum dot light emitting element. Background technique [0002] Quantum Dots are extremely small semiconductor nanocrystals that cannot be seen by the naked eye, and are particles with a particle size of less than 10 nanometers. Quantum dots have a distinctive feature: whenever stimulated by light or electricity, quantum dots will emit colored light, and the color of the light is determined by the material, size and shape of the quantum dots. This feature allows quantum dots to change the light source The color of the emitted light. [0003] At present, the use of quantum dot technology to emit white light is mainly obtained by mixing the three primary colors of RGB (red, green and blue). However, the traditional method is to mix blue quantum dots and red quantum dots, that is, green quantum dots. The light emitted by the blue quantum dots will be absorbed by the surro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L33/06B82Y20/00
CPCB82Y20/00H01L33/06Y02E10/549H10K50/13H10K50/115H10K50/125H10K50/15H10K50/16H10K50/17H10K50/18H10K50/81H10K50/82H10K50/171H10K77/10
Inventor 赵锋曹进张雪周洁谢婧薇张建华吴欲志邱钟毅
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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