公开(公告)号：US11733575B2

公开(公告)日：2023-08-22

申请号：US17466471

申请日：2021-09-03

Applicant: LG DISPLAY CO., LTD.

Inventor： Ji-Hoon Yu ,  Hye-Ji Jeon ,  Kyoung-Seok Park ,  Key-Young Yang ,  Si-Hyun Kim ,  Hyun-Ho Park

IPC: G02F1/1368 ,  G02F1/1362

CPC classification number: G02F1/1368 ,  G02F1/136209 ,  G02F1/136222

Abstract: A liquid crystal display device includes first and second substrates facing and spaced apart from each other; a liquid crystal layer between the first and second substrates; a thin film transistor in a subpixel on an inner surface of first substrate; a pixel electrode connected to the thin film transistor; a common electrode generating an electric field with the pixel electrode; a black matrix in a border portion of the subpixel on an inner surface of the second substrate, the black matrix including a metallic material, and a voltage applied to the black matrix; and a color filter layer in a center portion of the subpixel on the black matrix.

公开(公告)号：US10186203B2

公开(公告)日：2019-01-22

申请号：US15232618

申请日：2016-08-09

Applicant: LG Display Co., Ltd.

Inventor： Hyun-Ho Park ,  Key-Young Yang

IPC: G09G3/36 ,  G09G3/3266 ,  G11C19/28

Abstract: A gate driving unit includes first to nth stages sequentially outputting first to nth gate pulses, respectively, according to a start signal, wherein n is an integer larger than 2; and a dummy stage receiving the nth gate pulse, charging an (n+1)th Q node and outputting a dummy pulse synchronized with a clock signal, the dummy stage receiving a reset signal and discharging the (n+1)th Q node, wherein the first to nth stages receive the reset signal and charge first QB to nth QB nodes, respectively.