US 11,699,392 B2
Display device
Takayuki Nishiyama, Osaka (JP)
Assigned to SHARP KABUSHIKI KAISHA, Sakai (JP)
Appl. No. 17/41,434
Filed by SHARP KABUSHIKI KAISHA, Osaka (JP)
PCT Filed Mar. 27, 2018, PCT No. PCT/JP2018/012577
§ 371(c)(1), (2) Date Sep. 24, 2020,
PCT Pub. No. WO2019/186725, PCT Pub. Date Oct. 3, 2019.
Prior Publication US 2021/0035500 A1, Feb. 4, 2021
Int. Cl. G09G 3/3233 (2016.01)
CPC G09G 3/3233 (2013.01) [G09G 2310/027 (2013.01); G09G 2310/061 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A display device comprising:
an organic Electro Luminescence (EL) element emitting light when the organic EL element is powered by an electrical current;
a drive transistor configured to control the electrical current flowing through the organic EL element; and
a plurality of diode connection transistors connected in series to a source side of the drive transistor,
wherein a source of both of the drive transistor and the plurality of diode connection transistors is connected to a back gate of the drive transistor, and
the plurality of diode connection transistors is provided between the source side of the drive transistor and the organic EL element and is connected in series to both of the drive transistor and the organic EL element.