Lg Display Co., Ltd.

Industry-university Cooperation Foundation Hanyang University

Korea University Research and Business Foundation

SoonShin Jung

Kiseok Chang

Jihwan Jung

Byong Deok Choi

Moonbong Song

Jeongmin Moon

Yong Duck Kim

Yong Sang Yoo

Kwang Seob Jeong

JeongMin Moon

Yunchang Choi

Disclosed are a pixel circuit comprising an optical fingerprint sensing circuit, a method of driving a pixel circuit comprising an optical fingerprint sensing circuit, and a display device comprising a pixel circuit comprising an optical fingerprint sensing circuit. According to the present disclosure, the pixel circuit comprising an optical fingerprint sensing circuit comprises a pixel control circuit, the pixel control circuit comprising: a first photodetector which receives a light and generates a first signal; a second photodetector which receives a light and generates a second signal; and a self-illuminator which receives differential signals of the first signal and second signal and outputs an output signal, includes at least one transistor component and at least one capacitor component, and outputs a light on the basis of a data signal.

Pixel circuit comprising optical fingerprint sensing circuit, method for driving pixel circuit, and organic light-emitting display device

The present disclosure relates to a pixel circuit including an optical fingerprint sensing circuit, a method for driving a pixel circuit including the optical fingerprint sensing circuit, and a display device including the pixel circuit including the optical fingerprint sensing circuit. The pixel circuit includes: a self-light emitting element which displays images by a driving current controlled by a driving transistor; and a light-receiving element which receives light emitted from the self-light emitting element and reflected through a fingerprint of a user and converts it into a photocurrent. The driving transistor functions as a buffer which transmits an output voltage of the light-receiving element to an output line of the pixel circuit.

Pixel circuit including optical fingerprint sensing circuit, method for driving pixel circuit, and organic light emitting display device

Provided is a method of manufacturing gallium nitride quantum dots. The method includes the steps of: preparing a gallium precursor solution by heating a mixture prepared by dissolving a gallium halide and an organic ligand in a solvent; heating the gallium precursor solution to obtain a heated gallium precursor solution; hot-injecting a nitrogen precursor into the heated gallium precursor solution at a heating temperature to produce gallium nitride; growing the gallium nitride while maintaining the heating temperature, thereby producing a growth-completed gallium nitride; and cooling a solution including the growth-completed gallium nitride to produce gallium nitride quantum dots in a colloid state.

Method of manufacturing gallium nitride quantum dots

Growing community of inventors

Paju-si, South Korea

SoonShin Jung