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Organic electroluminescent device

An electroluminescent device and electroluminescent layer technology, which can be applied to electroluminescent light sources, electric light sources, lighting devices, etc., and can solve problems such as contrast reduction.

Inactive Publication Date: 2008-04-30
LG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, this reflection leads to a decrease in contrast

Method used

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  • Organic electroluminescent device
  • Organic electroluminescent device
  • Organic electroluminescent device

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Embodiment Construction

[0043] 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.

[0044] Figure 4 is a partial sectional view of a top emission type organic electroluminescent display device according to the first embodiment of the present invention. exist Figure 4 , the organic electroluminescent display device according to this embodiment includes a driving thin film transistor (TFT) T and an organic electroluminescent diode E. The buffer layer 104 is formed on the substrate 100 . The driving TFT T includes a semiconductor layer 106 formed on the buffer layer 104 , a gate electrode 112 formed on the semiconductor layer 106 , and source / drain electrodes 120 and 122 .

[0045] The power electrode 116 protruding from the voltage line (not shown in the figure) is connected to the so...

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Abstract

An organic electroluminescent device provides reduced reflectivity to increase contrast and improve display quality. The organic electroluminescent device includes a substrate, a first electrode over the substrate, at least one organic electroluminescent layer on the first electrode, a second electrode of a transparent conductive material on the at least one organic electroluminescent layer, a top passivation layer on the second electrode, and a compensation layer including at least an antireflection coating material or an antiglare coating material.

Description

[0001] This application claims the benefit of Korean Patent Application Nos. 2001-62307 and 2001-68485 filed in Korea on October 10, 2001 and November 5, 2001, respectively, which are hereby incorporated by reference. technical field [0002] The present invention relates to organic electroluminescent devices, and more particularly to organic electroluminescent devices of the top emission type. Background technique [0003] With the rapid development of the information age, flat panel display devices characterized by thin size, light weight, and high performance are in high demand in the display field. A flat panel display device can be classified into two types according to whether it emits or receives light. One is a light emitting type display device that emits light to display an image, and the other is a light receiving type display device that displays an image using an external light source. Plasma display panels, field emission display devices, and electroluminescen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/52H05B33/14G09G3/34H05B33/22H01L51/50H05B33/02H05B33/10H05B33/26H05B33/28
CPCH01L27/3244H01L2251/5315H01L51/5253H01L51/5206H01L51/5281H10K59/124H10K59/126H10K59/12H10K50/818H10K50/865H10K50/844H10K2102/3026
Inventor 金玉姬安泰濬
Owner LG DISPLAY CO LTD