	US 12,253,759 B2
	Liquid crystal display device
Hajime Kimura, Kanagawa (JP)
Assigned to Semiconductor Energy Laboratory Co., Ltd., Atsugi (JP)
Filed by SEMICONDUCTOR ENERGY LABORATORY CO., LTD., Atsugi (JP)
Filed on Jun. 21, 2024, as Appl. No. 18/750,016.
Application 14/548,503 is a division of application No. 14/024,704, filed on Sep. 12, 2013, granted, now 8,896,776, issued on Nov. 24, 2014.
Application 13/478,176 is a division of application No. 13/053,323, filed on Mar. 22, 2011, granted, now 8,199,267, issued on Jun. 12, 2012.
Application 18/750,016 is a continuation of application No. 18/242,158, filed on Sep. 5, 2023, granted, now 12,019,335.
Application 18/242,158 is a continuation of application No. 17/952,452, filed on Sep. 26, 2022, granted, now 11,754,881, issued on Sep. 12, 2023.
Application 17/952,452 is a continuation of application No. 17/182,275, filed on Feb. 23, 2021, granted, now 11,520,185, issued on Dec. 6, 2022.
Application 17/182,275 is a continuation of application No. 17/076,855, filed on Oct. 22, 2020, granted, now 10,962,838, issued on Mar. 30, 2021.
Application 17/076,855 is a continuation of application No. 16/655,527, filed on Oct. 17, 2019, granted, now 10,831,064, issued on Nov. 10, 2020.
Application 18/242,158 is a continuation of application No. 16/285,311, filed on Feb. 26, 2019, granted, now 10,451,924, issued on Oct. 22, 2019.
Application 16/655,527 is a continuation of application No. 16/285,311, filed on Feb. 26, 2019, granted, now 10,451,924, issued on Oct. 22, 2019.
Application 16/285,311 is a continuation of application No. 15/982,178, filed on May 17, 2018, granted, now 10,222,653, issued on Mar. 5, 2019.
Application 15/982,178 is a continuation of application No. 15/678,175, filed on Aug. 16, 2017, granted, now 9,977,286, issued on May 22, 2018.
Application 15/678,175 is a continuation of application No. 15/187,876, filed on Jun. 21, 2016, granted, now 9,740,070, issued on Aug. 22, 2017.
Application 15/187,876 is a continuation of application No. 14/548,503, filed on Nov. 20, 2014, granted, now 9,377,660, issued on Jun. 28, 2016.
Application 14/024,704 is a continuation of application No. 13/478,176, filed on May 23, 2012, granted, now 8,542,330, issued on Sep. 24, 2013.
Application 13/053,323 is a continuation of application No. 12/115,887, filed on May 6, 2008, granted, now 7,952,651, issued on May 31, 2011.
Claims priority of application No. 2007-132126 (JP), filed on May 17, 2007.
Prior Publication US 2024/0337877 A1, Oct. 10, 2024
Int. Cl. G02F 1/13357 (2006.01); G02F 1/1362 (2006.01); G02F 1/1368 (2006.01); G09G 3/36 (2006.01); G09G 3/34 (2006.01)

CPC G02F 1/133621 (2013.01) [G02F 1/136213 (2013.01); G02F 1/13624 (2013.01); G02F 1/136286 (2013.01); G02F 1/1368 (2013.01); G09G 3/3659 (2013.01); G02F 2201/121 (2013.01); G02F 2201/123 (2013.01); G02F 2202/10 (2013.01); G09G 3/342 (2013.01); G09G 3/3655 (2013.01); G09G 3/3688 (2013.01); G09G 2300/0426 (2013.01); G09G 2300/0443 (2013.01); G09G 2300/0842 (2013.01); G09G 2300/0852 (2013.01); G09G 2310/024 (2013.01); G09G 2310/0251 (2013.01); G09G 2310/0297 (2013.01); G09G 2320/0238 (2013.01); G09G 2320/0252 (2013.01); G09G 2320/0257 (2013.01); G09G 2320/0261 (2013.01); G09G 2320/028 (2013.01); G09G 2340/02 (2013.01); G09G 2340/0435 (2013.01); G09G 2340/16 (2013.01)]

4 Claims

1. A transmissive liquid crystal display device comprising:

a plurality of pixels arranged in a matrix, one of the plurality of pixels comprising:

a first transistor;

a second transistor;

a third transistor;

a first pixel electrode; and

a second pixel electrode,

wherein the transmissive liquid crystal display device comprises:

a first conductive layer comprising a first region configured to function as one of a source and a drain of the first transistor and a second region configured to function as a source wiring;

a second conductive layer comprising a first region configured to function as the other of the source and the drain of the first transistor and a second region in contact with the first pixel electrode;

a third conductive layer comprising a first region configured to function as one of a source and a drain of the second transistor, a second region configured to function as one of a source and a drain of the third transistor, and a third region in contact with the second pixel electrode; and

a fourth conductive layer comprising a first region configured to function as a gate of the first transistor, a second region configured to function as a gate of the second transistor, a third region configured to function as a gate of the third transistor, and a fourth region configured to function as a gate wiring,

wherein the other of the source and the drain of the third transistor is electrically connected to a wiring,

wherein the first transistor, the second transistor, and the third transistor are configured to be turned on at the same time,

wherein the first pixel electrode has a light-transmitting property,

wherein the second pixel electrode has a light-transmitting property,

wherein a potential of the source wiring is supplied to the first pixel electrode,

wherein the potential of the source wiring is supplied to the other of the source and the drain of the second transistor, and

wherein a potential obtained by dividing a potential difference between a potential of the other of the source and the drain of the second transistor and a potential of the wiring on the basis of a value of on-resistance of the second transistor and a value of on-resistance of the third transistor is supplied to the second pixel electrode.