US 12,009,432 B2
Transistor and display device
Hitoshi Kunitake, Isehara (JP); Yasuhiro Jinbo, Isehara (JP); Naoki Okuno, Yamato (JP); Masahiro Takahashi, Atsugi (JP); and Tomonori Nakayama, Atsugi (JP)
Assigned to Semiconductor Energy Laboratory Co., Ltd., Atsugi (JP)
Filed by Semiconductor Energy Laboratory Co., Ltd., Atsugi (JP)
Filed on Feb. 24, 2022, as Appl. No. 17/679,413.
Claims priority of application No. 2021-035525 (JP), filed on Mar. 5, 2021; application No. 2021-080946 (JP), filed on May 12, 2021; and application No. 2021-161151 (JP), filed on Sep. 30, 2021.
Prior Publication US 2022/0285560 A1, Sep. 8, 2022
Int. Cl. H01L 29/786 (2006.01); G09G 3/32 (2016.01)
CPC H01L 29/78603 (2013.01) [G09G 3/32 (2013.01); H01L 29/78681 (2013.01); G09G 2300/0426 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A display device comprising:
a first to a fourth wiring;
a light-emitting element;
a first capacitor;
a second capacitor; and
a first to a fourth transistor,
wherein one of a source and a drain of the first transistor is electrically connected to the first wiring,
wherein the other of the source and the drain of the first transistor is electrically connected to one electrode of the first capacitor,
wherein a gate of the first transistor is electrically connected to the second wiring,
wherein one of a source and a drain of the second transistor is electrically connected to an anode of the light-emitting element,
wherein the other of the source and the drain of the second transistor is electrically connected to the third wiring,
wherein a gate of the second transistor is electrically connected to the one electrode of the first capacitor,
wherein one of a source and a drain of the third transistor is electrically connected to the fourth wiring,
wherein the other of the source and the drain of the second transistor is electrically connected to the anode of the light-emitting element,
wherein one of a source and a drain of the fourth transistor is electrically connected to the fourth wiring,
wherein the other of the source and the drain of the fourth transistor is electrically connected to the one electrode of the first capacitor,
wherein the other electrode of the first capacitor is electrically connected to the anode of the light-emitting element,
wherein one electrode of the second capacitor is electrically connected to the one electrode of the first capacitor,
wherein the other electrode of the second capacitor is electrically connected to the third wiring,
wherein the first transistor comprises a metal oxide in a channel formation region, and
wherein Vsh in the first transistor is greater than or equal to −0.3 V.