US 12,347,372 B2
Pixel circuit and display device
MunChae Yoon, Seoul (KR); ByeongUk Gang, Seoul (KR); and Seonghwan Hwang, Seoul (KR)
Assigned to LG Display Co., Ltd., (KR)
Filed by LG DISPLAY CO., LTD., Seoul (KR)
Filed on Oct. 30, 2022, as Appl. No. 18/050,999.
Claims priority of application No. 10-2021-0177727 (KR), filed on Dec. 13, 2021.
Prior Publication US 2023/0186853 A1, Jun. 15, 2023
Int. Cl. G09G 3/3233 (2016.01)
CPC G09G 3/3233 (2013.01) [G09G 2300/0842 (2013.01); G09G 2310/08 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/043 (2013.01); G09G 2330/021 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A display device, comprising:
a light emitting device;
a driving transistor driving the light emitting device;
a scan transistor controlled by a scan signal supplied from a gate line and controlling a connection between a first node of the driving transistor and a data line;
a storage capacitor connected between the first node of the driving transistor and a second node of the driving transistor;
a driving control diode connected between the second node of the driving transistor and a reference voltage line; and
a plurality of subpixels, each of the plurality of subpixels including the light emitting device, the driving transistor, the scan transistor, the storage capacitor, and the driving control diode,
wherein each of the plurality of subpixels is driven during a driving period sequentially repeating a first period of a data writing period, a second period of a light emitting period and a third period of a display stop driving period,
during the data writing period, the first node of the driving transistor is supplied with a data voltage corresponding to an image signal to a corresponding subpixel,
during the light emitting period, the light emitting device in the corresponding subpixel emits light, and
during the display stop driving period, the light emitting device stops displaying an actual image representing the image signal supplied to the corresponding subpixel and displaying a fake image different from the actual image.