US 12,135,478 B2
Liquid crystal panel and display device
Koji Murata, Kameyama (JP); Hiroshi Tsuchiya, Kameyama (JP); Takashi Satoh, Kameyama (JP); and Shinji Shimada, Kameyama (JP)
Assigned to Sharp Display Technology Corporation, Kameyama (JP)
Filed by Sharp Display Technology Corporation, Kameyama (JP)
Filed on Jan. 30, 2023, as Appl. No. 18/102,883.
Claims priority of application No. 2022-016591 (JP), filed on Feb. 4, 2022; and application No. 2022-100396 (JP), filed on Jun. 22, 2022.
Prior Publication US 2023/0251522 A1, Aug. 10, 2023
Int. Cl. G02F 1/1335 (2006.01); G02F 1/13357 (2006.01); G02F 1/1343 (2006.01); G02F 1/137 (2006.01)
CPC G02F 1/133531 (2021.01) [G02F 1/133512 (2013.01); G02F 1/133514 (2013.01); G02F 1/133603 (2013.01); G02F 1/134318 (2021.01); G02F 1/134363 (2013.01); G02F 1/134372 (2021.01); G02F 1/13706 (2021.01)] 1 Claim
OG exemplary drawing
 
1. A liquid crystal panel sequentially comprising:
a first polarizing plate with a first absorption axis;
a first substrate including a first electrode;
a liquid crystal layer containing liquid crystal molecules; and
a second substrate including a second electrode, wherein
the liquid crystal panel satisfies the following Formula (1) as well as the following Formula (2-1) or Formula (2-2):
5°≤|φ1−φ2|≤20°  (Formula 1)
5°≤|φP1−φ2|≤20°  (Formula 2-1)
65°≤|φP1−φ2|≤80°  (Formula 2-2)
wherein φ1 represents an azimuthal angle of a director of liquid crystal molecules near the first substrate, φ2 represents an azimuthal angle of a director of liquid crystal molecules near the second substrate, and φP1 represents an azimuthal angle of the first absorption axis of the first polarizing plate, each without any voltage applied,
the first electrode or the second electrode has a pattern when viewed from an oblique direction of the liquid crystal panel with voltage applied to the liquid crystal layer,
the pattern is a logo, and an area of the logo is equal to or more than 5 mm2 and equal to and less than 500 mm2, and
a retardation of the liquid crystal layer without any voltage applied is equal to or more than 700 nm and equal to or less than 900 nm.