Sungkyunkwan University

Lg Display Co., Ltd.

University of Michigan

Lg Chem, Ltd

Industry-academic Cooperation Foundation, Dankook University

Dankook University

Jun Yeob Lee

Stephen R Forrest

Yong Joo Cho

Wanpyo Hong

Sang Duk Suh

Dohan Kim

Jeongdae Seo

Minseung Chun

Hyoseok Kim

Jungkeun Kim

ChangWook Han

Brian E Lassiter

Hyeseung Kang

Hongsik Yoon

Ho Jung Lee

Heeyeop Chae

Yoonheung Tak

Yujin Kang

Namhun Kim

YoonHeung Tak

Xiaoran Tong

Yu Jin Kang

Sangkyu Jeon

Soon Ok Jeon

Syoung Soo Yook

Provided is a compound of Chemical Formula 1:

Compound and organic light-emitting device comprising same

An organic light emitting display device is disclosed. The organic light emitting device includes a first light emitting part between an anode and a cathode, the first light emitting layer having a hole injection layer, a first hole transport layer, and a first light emitting layer; a second light emitting part over the first light emitting part, the second light emitting part having a second hole transport layer and a second light emitting layer; and a first charge generation layer between the first light emitting part and the second light emitting part, the first charge generation layer having a P-type charge generation layer, wherein at least one among the hole injection layer, the first hole transport layer, the second hole transport layer, and the P-type charge generation layer includes a carbonitrile compound.

Organic light emitting display device

Disclosed herein are processes for fabricating organic photosensitive optoelectronic devices with a vertical compositionally graded organic active layer. The processes use either a single-stamp or double-stamp printing technique to transfer the vertical compositionally graded organic active layer from a starting substrate to a device layer.

Photovoltaic cells with a graded active region achieved using stamp transfer printing

A liquid crystal display (LCD) device and a method for testing pixels of the LCD device are disclosed, in which pixels adjacent to each other vertically are arranged in a display area to share a gate line and an auto probe test pattern of the pixels is arranged in a non-display area. The LCD device comprises a plurality of pixels arranged in a display area; and a test pattern arranged in a non-display area, for supplying a test signal to each of the plurality of pixels, wherein two pixels, which are adjacent to each other vertically, among the plurality of pixels, share a single gate line and receive data voltages from different data lines different from each other, and the test pattern includes at least one data shorting bar and at least one switching unit to supply the test signal to each of the plurality of pixels per color.

Liquid crystal display device and method for testing pixels of the same

The present invention relates to a delayed fluorescence-quantum dot (QD) electroluminescent diode, the delayed fluorescence-quantum dot electroluminescent diode includes an anode, a cathode, and a light emitting layer located between the anode and the cathode, and the light emitting layer includes a QD and a delayed fluorescence material which supplies energy to the QD.

Electroluminescent diode having delayed florescence quantum dot

A delayed fluorescence material in accordance with the present disclosure may comprise a compound having a molecular structure including an electron donor unit and an electron acceptor unit coupled to the electron donor unit, wherein the electron donor unit includes an acridine furan derivative formed by acridine being bonded to dibenzofuran. The delayed fluorescence material may allow high structural and thermal stabilities and improved quantum efficiency.

Delayed fluorescence material and organic light emitting device having the delayed fluorescence material

There is disclosed a method for preparing the surface of a metal substrate. The present disclosure also relates to an organic photovoltaic device including a metal substrate made by such method. Also disclosed herein is an inverted photosensitive device including a stainless steel foil reflective electrode, an organic donor-acceptor heterojunction over the reflective electrode, and a transparent electrode over the donor-acceptor heterojunction.

Inverted organic photosensitive device

Growing community of inventors

Gyeonggi-do, South Korea

Jun Yeob Lee