US 12,253,747 B2
Viewing angle control module and display apparatus
Chung-Yang Fang, Hsin-Chu (TW); Wen-Chun Wang, Hsin-Chu (TW); and Bo-Han Cheng, Hsin-Chu (TW)
Assigned to Coretronic Corporation, Hsin-Chu (TW)
Filed by Coretronic Corporation, Hsin-Chu (TW)
Filed on Aug. 1, 2023, as Appl. No. 18/362,971.
Claims priority of provisional application 63/394,638, filed on Aug. 3, 2022.
Claims priority of application No. 202211199404.9 (CN), filed on Sep. 29, 2022.
Prior Publication US 2024/0045243 A1, Feb. 8, 2024
Int. Cl. G02F 1/13 (2006.01); G02F 1/133 (2006.01); G02F 1/1335 (2006.01); G02F 1/13363 (2006.01); G02F 1/1337 (2006.01); G02F 1/1343 (2006.01); G02F 1/1347 (2006.01)
CPC G02F 1/1323 (2013.01) [G02F 1/13306 (2013.01); G02F 1/133531 (2021.01); G02F 1/133638 (2021.01); G02F 1/133746 (2021.01); G02F 1/134309 (2013.01); G02F 1/1347 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A viewing angle control module, comprising:
a first liquid crystal panel, comprising
a first substrate and a second substrate overlapped with each other;
a first alignment layer disposed on the first substrate and having a first alignment direction;
a second alignment layer disposed on the second substrate and having a second alignment direction, wherein the second alignment direction is antiparallel to the first alignment direction;
a first liquid crystal layer sandwiched between the first alignment layer and the second alignment layer;
a first electrode layer disposed between the first alignment layer and the first substrate, wherein the first electrode layer has a plurality of electrode patterns, the electrode patterns are arranged at intervals along a first direction and extend along a second direction, and the second direction intersects the first direction; and
a second electrode layer disposed between the second alignment layer and the second substrate;
a first polarizer disposed on one side of the first substrate away from the first liquid crystal layer and having a first absorption axis, wherein an included angle between the first alignment direction and an axial direction of the first absorption axis is 45 degrees;
a second polarizer disposed on one side of the second substrate away from the first liquid crystal layer and having a second absorption axis, wherein an axial direction of the second absorption axis is perpendicular to the axial direction of the first absorption axis; and
a phase retarder disposed between the first polarizer and the first liquid crystal panel,
wherein the phase retarder is a phase compensation film, the phase compensation film has an optical axis, and an orthographic projection of the optical axis of the phase compensation film on the first substrate is parallel to the first direction.