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Organic electroluminescence display device and manufacturing method thereof

A technology for 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 to control film thickness, difficult to manufacture, etc., and achieves reduced characteristic dispersion and easy film thickness control. , the effect of easy stabilization characteristics

Active Publication Date: 2016-05-11
JOLED INC
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  • 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 device and manufacturing method thereof
  • Organic electroluminescence display device and manufacturing method thereof
  • Organic electroluminescence display device and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

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

no. 2 approach

[0058](Organic EL display device in which a second organic light-emitting layer of another color 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 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 . Around the display area 110, a signal line driver circuit 120 and a scan line driver circuit 130 are provided as drivers for screen display.

[0061] A pixel drive 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 active type drivi...

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Abstract

The invention discloses an organic electroluminescent display device capable of stable manufacture and improved device characteristics and a manufacturing method thereof. The organic EL display device comprises a plurality of first electrodes arranged on the substrate corresponding to the blue first organic electroluminescent elements and the second organic electroluminescent elements of other colors; A hole injection / transport layer; a second organic light-emitting layer of another color provided on the entire surface of the hole injection / transport layer, at least a part of the second organic light-emitting layer has a crystal part; a connection layer provided on the surface; a blue first organic light emitting layer provided on the entire surface of the connection layer; an electron injection / transport layer provided on the entire surface of the first organic light emission layer; and an electron injection / transport layer provided on the entire surface of the connection layer; The second electrode provided on the transport layer.

Description

[0001] Cross References to Related Applications [0002] The present invention contains subject matter related to Japanese Priority Patent Application JP2011-068247 filed in Japan Patent Office on Mar. 25, 2011, the entire content of which is hereby incorporated by reference. technical field [0003] The present invention relates to an organic electroluminescence (EL) display device and a manufacturing method thereof, wherein the organic EL display device emits light by utilizing the organic EL phenomenon. Background technique [0004] With the accelerated development of the information and communication industry, higher performance display elements are required. Among them, organic EL elements attracting attention as next-generation display elements not only have advantages of wide viewing angle and excellent contrast ratio but also have advantages of fast response time when used as self-luminous display elements. [0005] Materials used in light emitting layers and the li...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L27/32H01L51/50
CPCH10K59/351H10K59/38H10K50/131
Inventor 松元寿树吉永祯彦
Owner JOLED INC
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