US 12,302,705 B2
Display device and method of fabricating the same
Jong Oh Seo, Seoul (KR); Jang Hyun Kim, Hwaseong-si (KR); Byung Soo So, Yongin-si (KR); and Jae Woo Jeong, Suwon-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., LTD., Yongin-si (KR)
Filed on May 23, 2022, as Appl. No. 17/751,416.
Claims priority of application No. 10-2021-0132699 (KR), filed on Oct. 6, 2021.
Prior Publication US 2023/0106004 A1, Apr. 6, 2023
Int. Cl. H10K 59/121 (2023.01); H01L 27/12 (2006.01); H10K 59/12 (2023.01); H10K 71/00 (2023.01); H10K 77/10 (2023.01); H10K 102/00 (2023.01)
CPC H10K 59/1213 (2023.02) [H10K 71/00 (2023.02); H01L 27/1222 (2013.01); H10K 59/1201 (2023.02); H10K 77/111 (2023.02); H10K 2102/311 (2023.02)] 19 Claims
OG exemplary drawing
 
1. A display device comprising:
a substrate;
a semiconductor layer on the substrate, and comprising a channel of at least one transistor;
a first insulating layer on the semiconductor layer; and
a gate electrode on the first insulating layer,
wherein the semiconductor layer comprises polycrystalline silicon,
wherein the channel comprises:
a first region containing a first impurity; and
a second region containing a second impurity different from the first impurity, and
wherein the second region is located on the first region, and overlaps the first region.