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Organic RL display and fabricating method thereof

A display and organic technology, applied in the direction of organic semiconductor devices, semiconductor/solid-state device manufacturing, instruments, etc., can solve the problem of reducing the aperture ratio

Active Publication Date: 2012-01-25
LG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] However, in the organic EL display of the background art made above, the driving circuit occupies most of the pixel area to reduce the portion through which light can pass, that is, to reduce the aperture ratio
[0018] Also, in the case of using the compensation circuit, the area occupied by the driving circuit in each pixel area is increased more to significantly reduce the aperture ratio.

Method used

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  • Organic RL display and fabricating method thereof
  • Organic RL display and fabricating method thereof
  • Organic RL display and fabricating method thereof

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Embodiment Construction

[0051] Reference will now be made in detail to the preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.

[0052] The concept of the present invention is to realize a bottom emission type organic EL device on a pixel region without a driver circuit formed thereon, while realizing a top emission type organic EL device on a pixel region with a driver circuit formed thereon, or to realize , a top-emission organic EL device is bonded to a bottom-emission organic EL device to make a top- and bottom-emission display that can be independently driven.

[0053] Figure 4 is a circuit diagram of an organic EL display according to the present invention, and may be designed in various types sometimes.

[0054] see Figure 4 , An organic EL display according to the present invention includes a driving circuit (such as a ...

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PUM

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Abstract

A top and bottom emission organic EL display and fabricating method thereof are disclosed. The present invention includes a pixel area having a first area and a second area, a first organic EL device provided to the first area of the pixel area to emit light in one direction, a second organic EL device provided to the second area of the pixel area to emit light in a direction opposite to that of the first organic EL device, and a transistor electrically connected to the first and second organic EL devices to drive the first and second organic EL devices.

Description

[0001] This application is a divisional application of the original patent application number 200510074881.2 (application date: June 3, 2005, invention name: organic EL display and its manufacturing method). [0002] This application claims Korean Patent Application No. 10-2004-0040466 filed June 3, 2004, 10-2004-0040467 filed June 3, 2004, and 10-2004-0040826 filed June 4, 2004 Priority, is hereby incorporated by reference as if fully set forth herein. technical field [0003] The invention relates to an organic EL display and a manufacturing method thereof. Although the invention has a wide range of applicability, it is particularly suitable for two-sided emission. Background technique [0004] Generally, a pixel area of ​​an organic EL display includes a switching thin film transistor for switching pixels, a driving thin film transistor for driving pixels, a storage capacitor, an anode (pixel electrode), an organic emission layer, and a cathode (common electrode). [00...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/50H05B33/12H01L51/56H01L21/84G09F9/30H01L27/32H05B33/10G09F9/40
CPCH01L51/56H01L2251/5315H01L27/3244H01L27/3251H01L51/5218H01L51/5234H10K59/127H10K71/00H10K2102/3026H10K59/80524H10K59/80518H10K59/12H10K50/818H10K50/828
Inventor 金承泰金洪奎
Owner LG DISPLAY CO LTD