US 12,204,201 B2
Display panel comprising a polarizing layer having first and second sublayers each having a shrinkage force with a shrinkage direction, method of manufacturing a display panel, and display device
Dazhao Wu, Suzhou (CN); Junfang Lv, Suzhou (CN); Junjie Li, Suzhou (CN); and Dan Cao, Suzhou (CN)
Assigned to SUZHOU CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD., Suzhou (CN)
Filed by SUZHOU CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD., Suzhou (CN)
Filed on Apr. 28, 2023, as Appl. No. 18/308,717.
Claims priority of application No. 202310071725.9 (CN), filed on Jan. 31, 2023.
Prior Publication US 2024/0255797 A1, Aug. 1, 2024
Int. Cl. G02F 1/1335 (2006.01); G02F 1/13363 (2006.01)
CPC G02F 1/133531 (2021.01) [G02F 1/133514 (2013.01); G02F 1/13363 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A display panel, comprising:
a first substrate;
a second substrate disposed opposite to the first substrate;
a liquid crystal layer between the first substrate and the second substrate; and
a first polarizing layer disposed at a side of the first substrate away from the second substrate, the first polarizing layer comprising a first sublayer, a second sublayer, and a first polarizing material layer disposed between the first sublayer and the second sublayer,
wherein the first sublayer has a first shrinkage force, the second sublayer has a second shrinkage force, and a shrinkage direction of the first shrinkage force is parallel to a shrinkage direction of the second shrinkage force,
wherein the shrinkage direction of the first shrinkage force and the shrinkage direction of the second shrinkage force are perpendicular to a direction of an absorption axis of the first polarizing material layer,
the first sublayer is an optical compensation film and has a slow axis in a direction perpendicular to the direction of the absorption axis of the first polarizing material layer;
wherein the direction of the slow axis of the first sublayer is parallel to the shrinkage direction of the first shrinkage force, and
wherein at 80° C., the first shrinkage force of the first sublayer is less than or equal to 4 N and the second shrinkage force of the second sublayer is less than or equal to 4 N.