US 11,670,644 B2
Display device including two kinds of pixel arrangements
Dong-Hwi Kim, Osan-si (KR); and Jin Jeon, Seoul (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do (KR)
Filed by Samsung Display Co., LTD., Yongin-si (KR)
Filed on Dec. 17, 2021, as Appl. No. 17/555,370.
Application 17/555,370 is a continuation of application No. 16/996,504, filed on Aug. 18, 2020, granted, now 11,244,967.
Claims priority of application No. 10-2020-0024388 (KR), filed on Feb. 27, 2020.
Prior Publication US 2022/0115408 A1, Apr. 14, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G09G 3/32 (2016.01); H01L 27/12 (2006.01); H01L 27/15 (2006.01); H01L 27/32 (2006.01)
CPC H01L 27/124 (2013.01) [G09G 3/32 (2013.01); G09G 2300/0426 (2013.01); G09G 2300/0809 (2013.01); G09G 2310/0243 (2013.01); G09G 2310/0267 (2013.01); H01L 27/156 (2013.01); H01L 27/3211 (2013.01); H01L 27/3262 (2013.01); H01L 27/3265 (2013.01); H01L 27/3276 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A display device, comprising
a first region and a second region each including a plurality of pixels, and
an optical sensor disposed in the second region,
wherein each of the plurality of pixels includes:
a light emitting diode (LED) connected between a driving voltage line and a common voltage line;
a driving transistor connected between the driving voltage line and the light emitting diode (LED);
a second transistor connected between a first electrode of the driving transistor and a data line, the first electrode of the driving transistor being connected to the driving voltage line; and
a storage capacitor connected between the driving voltage line and a gate electrode of the driving transistor, and
wherein a ratio of a width to a length of a channel of the driving transistor for the second region is 155% or more and 206% or less of a ratio of a width to a length of a channel of the driving transistor for the first region.