A panchromatic organic electroluminescent device is provided

A luminescent and electromechanical technology, applied in circuits, electrical components, electrical solid devices, etc., can solve problems such as color shift of RGB three-color devices, achieve high color accuracy, improve yield rate, and simple preparation process

Active Publication Date: 2020-03-20
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many technical difficulties in the traditional production of large-scale full-color OLED light-emitting devices, including problems such as Cross-talk and color shift of traditional RGB three-primary color devices.

Method used

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  • A panchromatic organic electroluminescent device is provided
  • A panchromatic organic electroluminescent device is provided
  • A panchromatic organic electroluminescent device is provided

Examples

Experimental program
Comparison scheme
Effect test

manufacture Embodiment 1

[0099] Manufacturing steps process:

[0100] (1) On the control circuit 1, a reflective electrode layer 2a with a thickness of ITO(7nm) / Ag(100nm) / ITO(7nm) was fabricated by magnetron sputtering, and its film resistance was 9Ω / □. Subsequently, the reflective electrode layer 2a is patterned, and the first electrode isolation column and the second electrode isolation column are fabricated on the processed reflective electrode, wherein the first electrode isolation column has a trapezoidal structure, and the second trapezoidal isolation column is an inverted structure. Ladder structure. All the reflective electrode patterns and the isolation columns of the first electrode are processed by the same photolithography process used in traditional liquid crystal panels. The photoresist material used for the first electrode isolation column and the second electrode isolation column is ZPN1168 photoresist material produced by Zeon Co., Ltd. of Japan.

[0101] (2) After completing the fa...

manufacture Embodiment 2

[0130] Complete the entire full-color OLED light-emitting device according to the steps of Manufacturing Example 1, the difference is that in the preparation process of the blue OLED device, the process of step e) and step d) is repeated after step f) to form a three-layer blue OLED light-emitting device;

manufacture Embodiment 3

[0132] Complete the whole full-color OLED light-emitting device according to the steps of Manufacturing Example 1, the difference is that LiF in steps (3) and (6) is replaced by BaF 2 ;

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Abstract

The invention relates to a panchromatic organic light-emitting device, and belongs to the technical field of light-emitting device production and manufacturing. The panchromatic organic light-emittingdevice is of a laminated structure and sequentially comprises a control loop layer, a blue light OLED device layer, a first buffer layer, a light extraction and light color conversion function combination layer, a second buffer layer and a packaging layer from bottom to top. The light extraction and light color conversion function combination layer comprises a light extraction function area arranged in the blue light-emitting pixel unit area, a red light color conversion function area arranged in the red light-emitting pixel unit area and a green light color conversion function area arrangedin the green light-emitting pixel unit area. The problems of core-talk and color shift of a traditional RGB three-primary-color device can be effectively solved, the method has the advantages of beinggood in visual effect, high in yield, capable of achieving the size conveniently and the like, the manufacturing cost performance of a light-emitting device can be improved, and the OLED technology can enter the indoor high-end large-size display application field.

Description

technical field [0001] The invention relates to a full-color organic electroluminescent device, which belongs to the technical field of light-emitting device production and manufacturing, and specifically relates to a full-color organic electroluminescent light-emitting device manufactured by light-color conversion technology. Background technique [0002] With the continuous development and progress of OLED technology, OLED display technology has been widely used in mobile phones, TVs, and computers. Compared with inorganic electroluminescent devices, organic electroluminescent devices have a wide range of material selection, can realize full-color display from blue light region to red light region, low driving voltage, high luminous brightness and luminous efficiency, wide viewing angle, and fast response speed. Fast, and easy to realize many advantages such as large area and flexible display, so it has developed rapidly in the past few years. At present, the research in ...

Claims

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Application Information

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IPC IPC(8): H01L27/32
CPCH10K59/38
Inventor 段炼赵鑫栋叶中华张兆超李崇
Owner TSINGHUA UNIV
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