US 11,971,627 B2
Display panel and method for preparing same, and display apparatus
Feifei Wang, Beijing (CN); Hongming Zhan, Beijing (CN); Xibin Shao, Beijing (CN); and Lintao Ji, Beijing (CN)
Assigned to BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., Beijing (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
Appl. No. 17/629,416
Filed by BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., Beijing (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed Apr. 26, 2021, PCT No. PCT/CN2021/090021
§ 371(c)(1), (2) Date Jan. 24, 2022,
PCT Pub. No. WO2021/233085, PCT Pub. Date Nov. 25, 2021.
Claims priority of application No. 202010420617.4 (CN), filed on May 18, 2020.
Prior Publication US 2022/0260878 A1, Aug. 18, 2022
Int. Cl. G02F 1/13363 (2006.01); G02F 1/1335 (2006.01); G02F 1/1337 (2006.01); G02F 1/1362 (2006.01)
CPC G02F 1/133637 (2021.01) [G02F 1/133633 (2021.01); G02F 1/133738 (2021.01); G02F 1/133514 (2013.01); G02F 1/1362 (2013.01); G02F 2413/02 (2013.01); G02F 2413/08 (2013.01); G02F 2413/13 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A display panel, comprising: an array substrate and an opposite substrate, which are oppositely arranged, and a liquid crystal layer, which is arranged between the array substrate and the opposite substrate, wherein:
a compensation layer is arranged on the array substrate or the opposite substrate, and an included angle between an optical axis direction of the compensation layer and an initial optical axis direction of liquid crystal molecules in the liquid crystal layer is less than or equal to 10 degrees;
dispersion characteristics of the liquid crystal layer and the compensation layer are the opposite of each other, and the compensation layer is configured in such a way that the sum of a phase retardation of light passing through the compensation layer and a phase retardation of light passing through the liquid crystal layer is an integral multiple of a light wavelength;
the array substrate comprises an array base substrate, an array structure layer arranged on a side of the array substrate facing the opposite substrate, and a first alignment layer arranged on a side of the array structure layer facing the opposite substrate;
the opposite substrate comprises an opposite base substrate, an opposite structure layer arranged on a side of the opposite substrate facing the array substrate, and a second alignment layer arranged on a side of the opposite structure layer facing the array substrate;
the first alignment layer is configured to make a liquid crystal near the first alignment layer in the liquid crystal layer have a first initial posture, and the second alignment layer is configured to make a liquid crystal near the second alignment layer have a second initial posture;
the first initial posture and the second initial posture are mirror symmetric with respect to a central horizontal plane of the liquid crystal layer;
the opposite structure layer comprises a color filter layer arranged on a side of the opposite base substrate facing the array substrate and the compensation layer arranged on a side of the color filter layer facing the array substrate; or, the opposite structure layer comprises the compensation layer arranged on a side of the opposite base substrate facing the array substrate and a color filter layer arranged on a side of the compensation layer facing the array substrate; and
the opposite substrate further comprises a third alignment layer, which is arranged on a side of the compensation layer facing the opposite base substrate, and is configured to make the liquid crystal in the compensation layer have the same posture as the second initial posture.