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Organic electric-exciting light emitting device and its making method

A technology of electroluminescence and production method, which is applied in the direction of electroluminescence light source, electric light source, lighting device, etc.

Inactive Publication Date: 2003-08-27
OPTO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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  • Organic electric-exciting light emitting device and its making method
  • Organic electric-exciting light emitting device and its making method
  • Organic electric-exciting light emitting device and its making method

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Embodiment Construction

[0041] First, see Figure 4 , is a structural sectional view of a preferred embodiment of the present invention. As shown in the figure, the organic electroluminescent device 30 of the present invention mainly forms a first conductive layer 33 (such as an anode) on the upper side of a light-transmitting substrate 31 by evaporation or sputtering, and on the upper side of the anode 33 On the upper side, a hole injection layer 53 (HIL; the first carrier injection layer), a hole transport layer 35 (HTL; the first carrier transport layer) and a layer with a barrier to the second carrier (electron) are formed in sequence. Electronic blocking layer 47 (electron blocking layer), the upper side of the electronic blocking layer 47 is formed with a first host material layer 41 (Host 1) and a second host material layer 43 (Host2) in sequence, and on the second host material layer On the upper side of 43, a hole blocking layer 45 (hole blocking layer), an electron transport layer 37 (ETL;...

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Abstract

In the illuminator, the following layers are prepared between the anode and cathode in sequence: hole transport layer, electron barrier layer, the first subject material layer, the second subject material layer, the hole barrier layer and electron transport layer. With the first object luminiferous material being intermixed in, the first subject material layer shoots the first color light (B) under bias voltage being added. The second object luminiferous material shooting the second color light (G) and the third object luminiferous material shooting the third color light (R) is intermixed in the second subject material layer. Moreover, the second and the third object luminiferous materials are phosphorescent materials, therefore besides the continuous all wave band true color light source can be obtained.

Description

technical field [0001] The invention relates to a light-emitting device, in particular to an organic electroluminescence device with three-wavelength white light emission characteristics and a manufacturing method thereof. Background technique [0002] Organic light emitting device (Organic Light Emitting Device; OLED) since 1987 by C.W.Tang and S.A.VanSlyke of Kodak Company using vacuum evaporation method, respectively, hole transport material and electron transport material, such as Alq 3 , plated on transparent ITO glass, and then vapor-deposit a metal electrode to form a self-illuminating, high response speed, light weight, thin thickness, low power consumption, wide viewing angle, high brightness and full-color display. Electromechanical Light Emitting Elements (OLEDs). Since then, the organic electroluminescent element has been regarded as a star product in the display industry. Everyone hopes that it can be applied to full-color displays or project white light source...

Claims

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Application Information

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IPC IPC(8): H05B33/10H05B33/14
Inventor 林明德庄丰如周卓辉黄彦士
Owner OPTO TECH
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