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Organic light emitting display (oled) and method of fabricating the same

A flat-panel display and organic layer technology, applied in semiconductor/solid-state device manufacturing, electrical solid-state devices, semiconductor devices, etc., can solve problems such as reduced luminous efficiency, dark spots, and shortened lifespan

Active Publication Date: 2006-09-06
SAMSUNG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, defects such as dark spots may occur, and problems including (1) reduction in luminous efficiency and (2) shortened lifetime may occur

Method used

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  • Organic light emitting display (oled) and method of fabricating the same
  • Organic light emitting display (oled) and method of fabricating the same
  • Organic light emitting display (oled) and method of fabricating the same

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Embodiment Construction

[0029] figure 1 It is a cross-sectional view of an OLED display according to an embodiment of the present invention, showing an OLED device and a thin film transistor for driving the OLED device.

[0030] The buffer layer 105 is formed on the substrate 100 , and the semiconductor layer 110 is formed on the buffer layer 105 . The substrate 100 may be a glass substrate, a plastic substrate or a metal substrate. The semiconductor layer 110 may be a polysilicon layer.

[0031] The semiconductor layer 110 includes source / drain regions 111 and 115 doped with impurities of a predetermined conductivity type such as p-type impurities, and a channel interposed between the source / drain regions 111 and 115 and not doped with impurities. Area 117.

[0032] A gate insulating layer 120 is formed on the semiconductor layer 110 . The gate insulating layer 120 may include a single layer or multiple layers. Further, the gate insulating layer 120 may include an inorganic insulating layer suc...

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Abstract

This invention discloses an organic light emitting diode (OLED) display and its manufacturing method. The diode carries out surface treatment process after forming picture elements spaced layer and before depositing organic layer, this improves surface characteristic of indium tin oxide (ITO) used as picture elements electrode. The method for manufacturing plate display electrode comprises:Form electrode material on base plate; pattern the electrode material to form electrode design; form insulating layer of sedimentation thickness on the base plate; etch the insulating layer to reveal part of the electrode design; carry out surface treatment process under the condition of etching the insulating layer from the sedimentation thickness to designed thickness.

Description

[0001] Cross References to Related Applications [0002] This application claims priority from Korean Patent Application No. 10-2005-0011407 filed in the Korean Intellectual Property Office on February 7, 2005, the disclosure of which is hereby incorporated by reference in its entirety. technical field [0003] The present invention relates to flat panel displays, and more particularly, to organic light emitting diodes for improving the characteristics of indium tin oxide (ITO) used in pixel electrodes by performing surface treatment after forming a pixel separation layer but before depositing an organic layer ( OLED) display. The invention also relates to a method of manufacturing the OLED display. Background technique [0004] Generally, an active matrix organic light emitting diode display includes a plurality of pixels on a substrate, wherein each pixel includes at least one switching thin film transistor, one driving thin film transistor, a capacitor and an OLED. The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L21/283H01L51/56H01L51/50
CPCH01L27/3244H01L51/56H01L51/5206H01L27/3246H10K59/122H10K50/81H10K71/00B42F5/00B42D1/08
Inventor 金在中朴峻永李政烈闵卿旭
Owner SAMSUNG DISPLAY CO LTD