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Organic electroluminescent display elements

An electro-luminescence and display element technology, applied in electrical elements, electroluminescence light sources, electric light sources, etc., can solve the problems of reducing image contrast and unable to clearly present actual images, etc.

Active Publication Date: 2008-02-13
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, under a high level of ambient light such as indoors or outdoors with a lot of sunlight, the intensity of the ambient light reflected by the cathode conductive layer made of a high reflectivity material often exceeds the light emission intensity of the OLED element, thus reducing the brightness of the OLED element. Imaging image contrast, and can not clearly present the actual image

Method used

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  • Organic electroluminescent display elements
  • Organic electroluminescent display elements
  • Organic electroluminescent display elements

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Embodiment Construction

[0028] A preferred embodiment of the present invention will be described in detail in conjunction with Fig. 1 to Fig. 4 as follows

[0029] First, as shown in FIG. 1 , it shows a preferred embodiment of an organic electroluminescent display element according to the present invention, which includes an anode conductive layer 102, a light emitting layer 104, a partially transparent layer 106, and a protective layer formed on a substrate 100 in sequence. 108 , a reflection suppression layer 110 , and a cathode conductive layer 112 . The substrate 100 is, for example, a transparent glass substrate, on which other active components (such as thin film transistors) or other metal circuits can be formed, and it is only shown as a flat substrate here. In order to simplify the drawing, the luminescent layer 104 is only shown as a single film layer. Those skilled in the art should understand that the luminescent layer 104 actually includes a hole injection layer, a hole transport layer, ...

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Abstract

The present invention relates to one kind of organic electroluminescent display device. The device includes one anode, one organic light emitting layer on the anode; one transparent layer on the organic light emitting layer; one protecting layer on the transparent layer; one anti-reflection layer on the protecting layer and one cathode on the anti-reflection layer.

Description

technical field [0001] The present invention relates to an organic electroluminescence display technology, in particular to an organic electroluminescence display element with better contrast performance (contrast) and a manufacturing method thereof. Background technique [0002] Organic Electro-Luminescence display (OELD) elements have the advantages of thin and light weight of surface emission, high luminous efficiency of self-luminescence, low driving voltage, etc., and organic thin film materials based on organic electro-luminescence display elements Organic electroluminescent display elements can be divided into two types: small molecule-based devices and polymer-based devices. The small-molecule devices are called OLEDs (organic light emitting displays), which are Dyes and pigments are used as materials, while the polymer element is called PLED (polymer light emitting display), which is made of conjugated polymers. [0003] The structure of existing organic electrolum...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/50H05B33/12
Inventor 谢佳芬蔡子健
Owner AU OPTRONICS CORP