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Organic light-emitting display apparatus

一种发光显示、设备的技术，应用在有机半导体器件、电气元件、电固体器件等方向，能够解决中间层易恶化等问题

Active Publication Date: 2015-05-27
SAMSUNG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in a general organic light emitting display device, the intermediate layer between the pixel electrode and the opposite electrode becomes liable to deteriorate as the amount of flowing current increases.

Method used

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Experimental program
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Effect test

Embodiment approach

[0052] However, the present invention is not limited to the above exemplary embodiments. For example, by controlling the distance from the first pixel electrode 121R and the second pixel electrode 121G to the opposite electrode 129, the n-th resonance can be caused to occur in the red sub-pixel 120R and the green sub-pixel, respectively. In the pixel 120G, and by controlling the distance between the third pixel electrode 121B and the opposite electrode 129, the m-th resonance can occur in the blue sub-pixel 120B. In this case, n is a natural number, and m is a natural number greater than n. Therefore, the aforementioned embodiment can be understood as n=1 and m=2.

[0053] Since the color coordinates for blue light can be improved as the ordinal number of resonance increases, it can be considered that a resonance structure with a higher ordinal number is located in the blue sub-pixel 120B. However, because higher ordinal resonances may deteriorate visibility from the side, the r...

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Abstract

Provided is an organic light-emitting display apparatus, including a substrate, a first pixel electrode, a second pixel electrode, and a third pixel electrode, disposed on the substrate separated from one another, a red emission layer disposed corresponding to the first pixel electrode, a green emission layer disposed corresponding to the second pixel electrode, and a blue emission layer disposed corresponding to the third pixel electrode, an opposite electrode disposed over the red, green, and blue emission layers facing the first to third pixel electrodes, a first capping layer disposed on the opposite electrode corresponding to the first and second pixel electrodes, and a second capping layer disposed on the first capping layer corresponding to the first and second pixel electrodes and disposed on the opposite electrode to correspond to the third pixel electrode.

Description

[0001] Cross references to related applications [0002] This application claims the rights and priority of Korean Patent Application No. 10-2013-0140893 filed on November 19, 2013, which is hereby incorporated by reference as if it had been fully described herein. Technical field [0003] Exemplary embodiments of the present invention relate to display devices, and more particularly to organic light emitting display devices. Background technique [0004] Each organic light emitting display device includes an organic light emitting device (OLED) such as a pixel, and the OLED includes a pixel electrode and an opposite electrode facing each other, and an intermediate layer disposed therebetween and having an emission layer. The light generated by the emission layer is emitted outward, and the user can observe the emitted light. However, not all light generated by the emission layer is emitted outward. In other words, some light generated by the emission layer is guided along the bou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/32H01L51/52
CPCH10K59/35H10K50/818H10K50/85H10K50/852H10K50/844H10K2102/3026H10K2102/351H10K50/8426H10K50/805
Inventor 金在经金起范朴源祥
Owner SAMSUNG DISPLAY CO LTD
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