US 12,265,307 B2
Liquid crystal display device
Koji Murata, Kameyama (JP); Akira Hirai, Kameyama (JP); Hiroshi Tsuchiya, Kameyama (JP); Takashi Satoh, Kameyama (JP); Akira Sakai, 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 Aug. 28, 2023, as Appl. No. 18/239,090.
Claims priority of application No. 2022-159552 (JP), filed on Oct. 3, 2022.
Prior Publication US 2024/0111195 A1, Apr. 4, 2024
Int. Cl. G02F 1/1362 (2006.01); G02F 1/13 (2006.01)
CPC G02F 1/136209 (2013.01) [G02F 1/1323 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A liquid crystal display device comprising:
a liquid crystal panel in which a plurality of pixels is arranged in a matrix pattern; and
a control circuit,
wherein the liquid crystal panel includes, sequentially, an active matrix substrate, a liquid crystal layer, and a counter substrate in the stated order,
the active matrix substrate includes, sequentially, a first electrode and a second electrode in the stated order, the second electrode including a first linear electrode portion extending in a first direction,
the counter substrate includes a third electrode and a fourth electrode, the third electrode including a plurality of second linear electrode portions extending in a second direction crossing the first direction, the fourth electrode including an island-shaped electrode portion as a floating electrode,
the island-shaped electrode portion is disposed between the plurality of second linear electrode portions in a plan view, and overlaps an optical aperture of one pixel of two pixels, in the plurality of pixels, that are adjacent to each other along the second direction, and does not overlap an optical aperture of the other pixel of the two pixels,
the control circuit performs control of switching between application of a driving voltage and application of a constant voltage to the third electrode,
the counter substrate further includes a black matrix including a portion extending in the second direction, and
the plurality of second linear electrode portions includes a second linear electrode portion that does not overlap the portion of the black matrix extending in the second direction and overlaps an optical aperture of at least one of the plurality of pixels in the plan view.