Lg Display Co., Ltd.

KiSoub Yang

Jihyun Lee

YuRi Koh

ARyoung Lee

HwangUn Seo

KyoungJin Park

Kanghyun Kim

Hanhee Kim

HongMyeong Jeon

SeungRyul Choi

SungGoo Jung

An electroluminescent display device which may improve display quality is discussed. The electroluminescent display device includes a substrate in which a plurality of pixel areas are defined, a first electrode arranged in each pixel area, a light emitting layer on the first electrode within the pixel area, and a second electrode on the light emitting layer. Particularly, a step difference portion is arranged at an edge of the pixel area, and is partially or fully be filled with the light emitting layer. Film uniformity of the light emitting layer within the pixel area may be improved by arrangement of the step difference portion.

Electroluminescent display device

Disclosed is an organic light emitting device, (OLED) comprising a substrate on which a driving transistor is formed, a bank formed on the substrate providing a boundary for a pixel region, a first electrode formed on the substrate and electrically connected with the driving transistor, the first electrode comprising a first and second cross sectional area both oriented in a direction perpendicular to a vertical direction of the substrate, the first area adjacent to the bank, the second area surrounded by the first area, an organic layer formed on the first electrode within the boundary provided by the bank, and a second electrode formed on the organic layer, wherein during operation of the OLED a first electric field between the first area of the first electrode and the second electrode is greater than a second electric field between the second area of the first electrode and the second electrode.

Organic light emitting device

An organic light emitting display panel according to an aspect of the present invention includes a planarization layer positioned on a substrate including a plurality of pixels, and a first opening portion formed in a non-emission area of the pixel, a first electrode formed on a portion exposed through the first opening portion and the planarization layer, a bank including a portion overlapping an edge of the first electrode, and exposing a portion corresponding to an emission area of the pixel on the first electrode, an organic layer formed on the portion corresponding to the emission area of the pixel on the first electrode, and a second electrode formed on the bank and the organic layer.

Organic light emitting display panel and method of manufacturing the same

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Paju-si, South Korea

KiSoub Yang