US 11,996,436 B2
Display device and electronic device
Hajime Kimura, Kanagawa (JP); and Atsushi Miyaguchi, Kanagawa (JP)
Assigned to Semiconductor Energy Laboratory Co., Ltd., (JP)
Filed by Semiconductor Energy Laboratory Co., Ltd., Kanagawa-ken (JP)
Filed on May 11, 2023, as Appl. No. 18/196,156.
Application 13/182,167 is a division of application No. 11/527,125, filed on Sep. 26, 2006, granted, now 7,982,385, issued on Jul. 19, 2011.
Application 18/196,156 is a continuation of application No. 17/555,838, filed on Dec. 20, 2021, granted, now 11,676,990.
Application 17/555,838 is a continuation of application No. 17/021,177, filed on Sep. 15, 2020, granted, now 11,211,424, issued on Dec. 28, 2021.
Application 17/021,177 is a continuation of application No. 16/048,754, filed on Jul. 30, 2018, granted, now 10,790,329, issued on Sep. 29, 2020.
Application 16/048,754 is a continuation of application No. 15/883,430, filed on Jan. 30, 2018, granted, now 10,043,849, issued on Aug. 7, 2018.
Application 15/883,430 is a continuation of application No. 14/815,329, filed on Jul. 31, 2015, granted, now 9,887,236, issued on Feb. 6, 2018.
Application 14/815,329 is a continuation of application No. 13/962,671, filed on Aug. 8, 2013, granted, now 9,099,374, issued on Aug. 4, 2015.
Application 13/962,671 is a continuation of application No. 13/612,351, filed on Sep. 12, 2012, granted, now 8,629,612, issued on Jan. 14, 2014.
Application 13/612,351 is a continuation of application No. 13/182,167, filed on Jul. 13, 2011, granted, now 8,278,817, issued on Oct. 2, 2012.
Claims priority of application No. 2005-288373 (JP), filed on Sep. 30, 2005.
Prior Publication US 2023/0282679 A1, Sep. 7, 2023
Int. Cl. H01L 27/15 (2006.01); H01L 29/786 (2006.01); H10K 59/12 (2023.01); H10K 59/35 (2023.01); G09G 3/20 (2006.01); G09G 3/3208 (2016.01); H10K 59/121 (2023.01)
CPC H01L 27/15 (2013.01) [H01L 29/7869 (2013.01); H10K 59/12 (2023.02); H10K 59/351 (2023.02); H10K 59/352 (2023.02); H10K 59/353 (2023.02); G09G 3/2003 (2013.01); G09G 3/2074 (2013.01); G09G 3/3208 (2013.01); G09G 2300/0452 (2013.01); H10K 59/121 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A display device comprising:
a first pixel configured to emit light of a first color, the first pixel comprising a first organic EL element and a first color conversion layer provided over the first organic EL element; and
a second pixel configured to emit light of a second color, the second pixel comprising a second organic EL element and a second color conversion layer provided over the second organic EL element,
wherein the first color and the second color are different from each other,
wherein an area of the first pixel is larger than an area of the second pixel,
wherein the first organic EL element is electrically connected to one of a source and a drain of a first transistor,
wherein the other of the source and the drain of the first transistor is electrically connected to a power supply line,
wherein a gate of the first transistor is electrically connected to one of a source and a drain of a second transistor,
wherein the other of the source and the drain of the second transistor is electrically connected to a first signal line,
wherein the second organic EL element is electrically connected to one of a source and a drain of a third transistor,
wherein the other of the source and the drain of the third transistor is electrically connected to the power supply line,
wherein a gate of the third transistor is electrically connected to one of a source and a drain of a fourth transistor,
wherein the other of the source and the drain of the fourth transistor is electrically connected to a second signal line, and
wherein each of the first transistor, the second transistor, the third transistor, and the fourth transistor comprises indium, gallium, and zinc.