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Active driving organic electroluminescent display structure

An organic light-emitting layer and luminescent technology, applied in the direction of electroluminescent light source, electric light source, static indicator, etc., can solve problems such as unstable luminous brightness and decreased OLED brightness

Active Publication Date: 2008-04-02
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the inventors found that in the current technology, when a fixed current is given, the brightness of the OLED still declines (decay).
[0005] Therefore, it is urgent to find out the reason why the luminous brightness of the existing AMOLED is unstable and to improve its structure, so as to produce an AMOLED that maintains the luminous brightness of the OLED.

Method used

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  • Active driving organic electroluminescent display structure
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  • Active driving organic electroluminescent display structure

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Embodiment Construction

[0039] Fig. 5 shows a first embodiment of the structure of the protective layer of the TFT of the present invention. A multi-layer protective layer 26 is fabricated to increase the anti-leakage current capability of the protective layer 26 . For example, SiNx with a thickness of 3000 angstroms can be plated in multiple layers (more than two layers), or SiNx can be plated with other dielectric materials alternately. In FIG. 5 , the protection layer 26 is composed of two layers 261 , 262 . By increasing the thickness of the dielectric layer of the protection layer and increasing the interface of the dielectric film due to multi-layer plating, the anti-leakage current capability of the protection layer 26 can be double enhanced.

[0040] In addition, the present invention provides another preferred embodiment, performing thermal oxidation treatment on the surface of the protection layer to increase the anti-leakage current capability of the protection layer. Fig. 6 shows the se...

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Abstract

The present invention is the driving organic electroluminescent display structure with stable lighting strength. The driving organic electroluminescent display includes one thin film transistor (TFT) structure and one organic LED structure, and has improved TFT protecting layer structure to lower TFT leakage current and to stabilize the lighting strength of the organic LED.

Description

technical field [0001] The present invention relates to an organic electroluminescence display structure, in particular to an improved TFT protective layer structure to reduce the leakage current of the thin film transistor and maintain a display structure that actively drives the luminance of an organic light emitting diode (OLED). Background of the invention [0002] Organic Electroluminescence Display (Organic Electroluminesence Display), also known as Organic Light Emitting Diode (OLED) display, because of its high brightness, fast screen response, thin and short, full color, no viewing angle difference, no need for liquid crystal The advantages of display-type backlight and saving light source and power consumption, so it can take the lead in replacing the twisted nematic (TwistNematic; TN) and super twisted nematic (Super Twist Nematic; STN) liquid crystal display market, and further replace small-sized films Transistor liquid crystal display (TFT-LCD) has become a dis...

Claims

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Application Information

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IPC IPC(8): H01L27/32G09G3/32G09G3/3225H05B33/12
Inventor 黄维邦
Owner AU OPTRONICS CORP
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