US 12,259,621 B2
Liquid crystal display device
Sang-Woon Kim, Paju-si (KR); Koog Choi, Paju-si (KR); Ji-Hoon Yu, Paju-si (KR); and Hye-Ji Jeon, Paju-si (KR)
Assigned to LG Display Co., Ltd., Seoul (KR)
Filed by LG DISPLAY CO., LTD., Seoul (KR)
Filed on Dec. 27, 2022, as Appl. No. 18/089,361.
Claims priority of application No. 10-2021-0189587 (KR), filed on Dec. 28, 2021.
Prior Publication US 2023/0205024 A1, Jun. 29, 2023
Int. Cl. G02F 1/1362 (2006.01); G02F 1/1339 (2006.01); G02F 1/1368 (2006.01)
CPC G02F 1/136222 (2021.01) [G02F 1/1339 (2013.01); G02F 1/136209 (2013.01); G02F 1/1368 (2013.01)] 27 Claims
OG exemplary drawing
 
1. A liquid crystal display device, comprising:
a liquid crystal panel including:
a first substrate,
a thin film transistor on the first substrate,
an organic buffer layer between the first substrate and the thin film transistor,
a pixel electrode connected to the thin film transistor,
a second substrate,
a color filter layer on the second substrate,
a black matrix on the second substrate, and
a liquid crystal layer between the first and second substrates; and
a backlight unit below the liquid crystal panel,
wherein the second substrate is between the backlight unit and the first substrate,
wherein the liquid crystal panel has a display region and a non-display region,
wherein a plurality of sub-pixels are arranged in the display region, and each of the plurality of sub-pixels is defined by a data line and a gate line, and
wherein the organic buffer layer has a size equal to or larger than the display region,
wherein the organic buffer layer has a larger size than the pixel electrode disposed in each sub-pixel and overlaps the pixel electrodes of the plurality of sub-pixels,
wherein the organic buffer layer on the first substrate overlaps the black matrix and the color filter layer on the second substrate.