US 11,852,911 B2
Liquid crystal display device
Koji Murata, Kameyama (JP); Yasuhiro Haseba, Kameyama (JP); Kazutaka Hanaoka, Kameyama (JP); Kimiaki Nakamura, Kameyama (JP); Mariko Honda, Kameyama (JP); Atsuko Kanashima, Kameyama (JP); Tadashi Hasegawa, 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 Jun. 29, 2022, as Appl. No. 17/852,411.
Claims priority of application No. 2021-110811 (JP), filed on Jul. 2, 2021.
Prior Publication US 2023/0024383 A1, Jan. 26, 2023
Int. Cl. G02F 1/1334 (2006.01); G02F 1/137 (2006.01); G02F 1/1337 (2006.01); G02F 1/13357 (2006.01)
CPC G02F 1/1334 (2013.01) [G02F 1/1337 (2013.01); G02F 1/13706 (2021.01); G02F 1/133603 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A liquid crystal display device comprising, sequentially from its viewing surface side toward its back surface side:
a first liquid crystal panel;
a light source;
a back surface side light source; and
a second liquid crystal panel,
the first liquid crystal panel including a polymer dispersed liquid crystal containing a polymer network and liquid crystal components,
the light source being configured to directly irradiate a back surface side main surface of the first liquid crystal panel with light from an oblique direction without guiding light emitted from the light source through any other element between the light source and the first liquid crystal panel, and
the back surface side light source irradiating the back surface side main surface of the first liquid crystal panel with light from an oblique direction without guiding light emitted from the back surface side light source through any other element between the back surface side light source and the first liquid crystal panel.