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Organic electroluminescence display and method of manufacturing the same

A technology of electroluminescence display and organic light-emitting layer, which is applied in the manufacture of semiconductor/solid-state devices, circuits, electrical components, etc., can solve the problems of difficult manufacture and difficult control of film thickness, and achieves reduced characteristic dispersion and easy control of film thickness. , the effect of easy stabilization characteristics

Active Publication Date: 2012-09-26
JOLED INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In the organic EL display device disclosed in Japanese Patent Unexamined Publication No. 2006-140434, in which each layer is formed by a coating method corresponding to each element, it is extremely difficult to control the film thickness, and it is difficult to achieve stable manufacturing

Method used

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  • Organic electroluminescence display and method of manufacturing the same
  • Organic electroluminescence display and method of manufacturing the same
  • Organic electroluminescence display and method of manufacturing the same

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0056] (Organic EL display device in which the second organic light-emitting layer of other colors is formed by a coating method)

no. 2 approach

[0058] (Organic EL display device in which the second organic light-emitting layer of other colors is formed by vapor deposition method)

[0059] (First embodiment)

[0060] figure 1 The structure of the organic EL display device according to the first embodiment of the present invention is shown. The organic EL display device 1 is used in an organic EL television set or the like, in which, for example, a plurality of red organic EL elements 10R, green organic EL elements 10G, blue organic EL elements 10B, and yellow organic EL elements 10Y to be described later are arranged in a matrix The form is arranged in the display area 110 on the substrate 11. In the periphery of the display area 110, a signal line driving circuit 120 and a scanning line driving circuit 130 as drivers for screen display are provided.

[0061] A pixel driving circuit 140 is provided in the display area 110. figure 2 An example of the pixel driving circuit 140 is shown. The pixel driving circuit 140 is an a...

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PUM

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Abstract

Disclosed herein is an organic electroluminescence display including a plurality of first electrodes, a hole injection / transport layer, a second organic light emitting layer for another color, a connection layer, a first organic light emitting layer for blue color, an electron injection / transport layer, and an electron injection / transport layer. The first electrodes are provided on a substrate on the basis of each of a first organic electroluminescence element for blue color and a second organic electroluminescence element for another color. The hole injection / transport layer is provided over the whole surface area on the first electrodes and having a property for one of hole injection or transport. The second organic light emitting layer for another color is provided over the whole surface area on the hole injection / transport layer and having a crystal part in a part. The connection layer is provided over the whole surface area on the second organic light emitting layer.

Description

[0001] Cross reference of related applications [0002] The present invention includes the subject matter related to the Japanese prior patent application JP2011-068247 filed with the Japan Patent Office on March 25, 2011, and the entire content of the Japanese patent application is incorporated herein by reference. Technical field [0003] The present invention relates to an organic electroluminescence (EL) display device and a method of manufacturing the same, in which the organic EL display device emits light using an organic EL phenomenon. Background technique [0004] With the accelerated development of the information and communications industry, higher performance display components are required. Among them, the organic EL element, which has attracted attention as a next-generation display element, not only has the advantages of wide viewing angle and excellent contrast, but also has the advantage of fast response time when used as a self-luminous display element. [0005] Mat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/32H01L51/50
CPCH01L27/322H01L27/3213H01L51/5044H10K59/351H10K59/38H10K50/131
Inventor 松元寿树吉永祯彦
Owner JOLED INC
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