US 12,232,371 B2
Display device
Yoon-Jong Cho, Seongnam-si (KR); Seok Je Seong, Seongnam-si (KR); and Seong Jun Lee, Seoul (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by Samsung Display Co., LTD., Yongin-si (KR)
Filed on Aug. 9, 2023, as Appl. No. 18/446,874.
Application 18/446,874 is a continuation of application No. 18/085,749, filed on Dec. 21, 2022, granted, now 11,765,946.
Application 18/085,749 is a continuation of application No. 16/997,385, filed on Aug. 19, 2020, granted, now 11,538,882, issued on Dec. 27, 2022.
Claims priority of application No. 10-2020-0023591 (KR), filed on Feb. 26, 2020.
Prior Publication US 2023/0389371 A1, Nov. 30, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H10K 59/126 (2023.01); G09G 3/3208 (2016.01); G09G 3/3233 (2016.01); H01L 27/12 (2006.01); H01L 29/04 (2006.01); H01L 29/786 (2006.01); H10K 50/86 (2023.01); H10K 59/12 (2023.01); H10K 59/121 (2023.01); H10K 59/131 (2023.01)
CPC H10K 59/126 (2023.02) [G09G 3/3233 (2013.01); H10K 59/1213 (2023.02); G09G 3/3208 (2013.01); G09G 2300/0426 (2013.01); G09G 2300/0819 (2013.01); G09G 2300/0852 (2013.01); G09G 2310/0254 (2013.01); G09G 2320/0238 (2013.01); H01L 27/1222 (2013.01); H01L 27/1225 (2013.01); H01L 27/1251 (2013.01); H01L 29/04 (2013.01); H01L 29/78672 (2013.01); H01L 29/78675 (2013.01); H01L 29/7869 (2013.01); H10K 50/865 (2023.02); H10K 59/12 (2023.02); H10K 59/1216 (2023.02); H10K 59/131 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A display device comprising:
a light emitting diode electrically connected between a driving voltage line that transmits a driving voltage and a common voltage line that transmits a common voltage;
a driving transistor electrically connected between the driving voltage line and the light emitting diode;
a first transistor electrically connected between a first electrode of the driving transistor electrically connected to the driving voltage line and a data line that transmits a data voltage;
a second transistor electrically connected between a second electrode of the driving transistor electrically connected to the light emitting diode and a gate electrode of the driving transistor;
a third transistor electrically connected between the light emitting diode and an initialization voltage line that transmits an initialization voltage;
a fourth transistor electrically connected between the driving voltage line and the first electrode of the driving transistor; and
a sixth transistor electrically connected between the second electrode of the driving transistor and the light emitting diode, wherein
the driving transistor includes a polycrystalline semiconductor,
the second transistor and the third transistor each include an oxide semiconductor,
the third transistor includes a light blocking layer disposed directly on a same layer as the gate electrode of the driving transistor.