US 11,741,908 B2
Display device and method of controlling the same
Genshiro Kawachi, Kanagawa (JP); Masamichi Shimoda, Kanagawa (JP); Yoshihiro Nonaka, Kanagawa (JP); and Jiro Yanase, Kanagawa (JP)
Assigned to Wuhan Tianma Micro-Electronics Co., Ltd., Wuhan (CN); and TIANMA JAPAN, LTD., Kanagawa (JP)
Filed by Wuhan Tianma Micro-Electronics Co., Ltd., Wuhan (CN); and TIANMA JAPAN, LTD., Kanagawa (JP)
Filed on Mar. 15, 2022, as Appl. No. 17/695,493.
Application 17/695,493 is a continuation of application No. 17/192,311, filed on Mar. 4, 2021, granted, now 11,495,180.
Application 17/192,311 is a continuation of application No. 16/851,719, filed on Apr. 17, 2020, granted, now 10,971,076, issued on Apr. 6, 2021.
Claims priority of application No. 2019-079477 (JP), filed on Apr. 18, 2019.
Prior Publication US 2022/0208119 A1, Jun. 30, 2022
Int. Cl. G09G 3/3275 (2016.01); G09G 3/325 (2016.01); G09G 3/00 (2006.01); G09G 3/3233 (2016.01); G09G 3/3291 (2016.01)
CPC G09G 3/3275 (2013.01) [G09G 3/325 (2013.01); G09G 3/006 (2013.01); G09G 3/3233 (2013.01); G09G 3/3291 (2013.01); G09G 2310/0297 (2013.01); G09G 2330/08 (2013.01); G09G 2330/12 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A display device comprising:
a pixel circuit on a substrate;
a data line configured to transmit a data signal for the pixel circuit on the substrate;
a power supply line; and
an extra voltage supply line different from the power supply line and the data line,
wherein the pixel circuit comprises:
a driving transistor configured to control an amount of electric current supplied to a light-emitting element;
a storage capacitor disposed between a gate terminal of the driving transistor and the power supply line;
a first switching transistor disposed between the power supply line and the driving transistor;
a second switching transistor disposed between a source terminal of the driving transistor and the data line; and
a third switching transistor disposed between the source terminal of the driving transistor and the extra voltage supply line, and
wherein the third switching transistor supplies a signal voltage different from the data signal to the driving transistor from the extra voltage supply line.