Lg Innotek Co., Ltd.

Boe Hydis Technology Co., Ltd.

Hyundai Display Technology Inc.

Sun Woong Kim

Woo Young Kim

Joo Hyeon Lee

Sung Hoo Ju

Kwang Ho Kim

Min Soo Kang

Yun Ho Shin

Ui Youn Jung

An optical lens and a light emitting module having the optical lens is provided. The optical lens may include a bottom surface, a recess upwardly convex at a central region of the bottom surface, a light input surface at a circumference of the recess, a first light output surface having a convexly curved surface at opposite sides of the bottom surface and the light input surface, and a second light output surface at a lower circumference of the first light output surface, wherein the bottom surface includes a first edge adjacent to the recess and a second edge adjacent to the second light output surface, a region of the bottom surface more adjacent to the first edge gradually approaches a first axis that is horizontal to a center of a bottom of the recess, and the first light output surface has a convex central region.

Optical lens, light emitting module and light unit having the same

Disclosed is a method for manufacturing cathode electrodes of electroluminescent display device capable of forming cathode electrodes of fine patterns. The disclosed comprises the steps of: forming an anode electrode on a transparent insulating substrate; forming an insulating partition having a stripe structure to cross with the anode electrode and define a pixel formation area on the substrate; forming an organic film pixel separated with a predetermined distance, with the insulating partition interposed; depositing a cathode metal layer on the surface of the resulting structure; and forming a cathode electrode exposing a predetermined part of the insulating partition by performing etching processes on the cathode metal layer using laser.

Method for manufacturing cathode electrodes of electroluminescent display device

An organic source boat structure for organic electro-luminescent display fabricating apparatus is provided to form an organic layer having uniform thickness. The organic source boat structure comprises: a plurality of host cells having a plurality of evaporation holes for evaporation of host organic source; a plurality of dopant cells alternatively arranged to the plurality of host cells, having a plurality of evaporation holes for evaporation of dopant organic source; a contamination control plate arranged between the host cells and the dopant cells; and a side cover to stably support the host cells and the dopant cells.

Organic source boat structure for organic electro-luminescent display fabricating apparatus

Growing community of inventors

Seoul, South Korea

Sun Woong Kim