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An unorganic/organic composite structure white light emitting display

A composite structure, white light emitting technology, applied in the direction of electroluminescent light source, light source, electric light source, etc., can solve the problems of cumbersome preparation process, high cost, expensive organic dyes, etc., and achieve the effect of simple preparation process and low cost

Inactive Publication Date: 2004-12-29
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, it is a well-known fact that multi-source evaporation tables are difficult to operate
Besides, organic dyes are generally very expensive, and the control of doping concentration is also a difficult problem
Obviously, relying on these devices to achieve white light has disadvantages such as cumbersome preparation process and high cost.

Method used

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  • An unorganic/organic composite structure white light emitting display
  • An unorganic/organic composite structure white light emitting display

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Embodiment Construction

[0010] The embodiment of inorganic / organic composite structure white light-emitting display is as follows figure 1 As shown, its structure is as follows: glass substrate 1, ITO electrode 2, hole transport layer 3, organic light-emitting layer 4, inorganic thin layer 5, and metal back electrode 6.

[0011] The hole transport layer 3 uses amine derivatives NPB: [N,N'-bis(1-phenyl)-N,N'-diphenyl 1,1'-diphenyl-4,4'-diamine ], thickness 45 nm.

[0012] The organic light-emitting layer 4 adopts octahydroxyquinoline aluminum Alq 3 , thickness 45 nm.

[0013] The inorganic material thin layer 5 is LiF with a thickness of 0.3 nm. Lithium fluoride LiF embedded in the organic light-emitting layer 8-hydroxyquinoline aluminum Alq at a distance of 10 nm from the interface of the hole-transport layer NPB 3 middle.

[0014] The metal back electrode 6 is made of aluminum Al with a thickness of 150 nanometers.

[0015] The structure of the inorganic / organic composite structure white light...

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Abstract

The invention discloses an inorganic / organic leucoplast illuminated display of compound structure which comprises in turn, a glass substrate, an ITO electrode, a cavity transmission layer, an organic luminescent layer, an inorganic thin layer and a metal back electrode, wherein the inorganic thin layer is studded into the organic luminescent layer.

Description

technical field [0001] The invention relates to a white light emitting display. Specifically, an organic electroluminescent device (OLED—organic light emitting diode) is prepared with an inorganic / organic composite structure to meet the requirements of information color display. Background technique [0002] OLED can overcome the disadvantages of large size, radiation, small viewing angle, narrow temperature range, and low resolution of many currently used displays, and will become an important member of the flat panel display family. Although there are many types of OLED display screens, the brightness and efficiency of devices with simple structures are often low; while the preparation of devices with complex structures or doping is more difficult. Existing light-emitting devices with organic / inorganic composite structures, such as: ZL011 36072.0, the invention name is "Field Emission Enhanced Light-Emitting Flat Panel Display Device"; ZL01 1 20505.9, the invention name i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B33/12H05B33/20
Inventor 邓振波肖静徐登辉梁春军
Owner BEIJING JIAOTONG UNIV
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