US 11,869,902 B2
Display apparatus including capacitor having a top electrode with an opening
Hansung Bae, Yongin-si (KR); and Wonkyu Kwak, Yongin-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Jan. 25, 2021, as Appl. No. 17/157,724.
Application 17/157,724 is a continuation of application No. 16/203,874, filed on Nov. 29, 2018, granted, now 10,903,248.
Claims priority of application No. 10-2018-0012342 (KR), filed on Jan. 31, 2018.
Prior Publication US 2021/0151473 A1, May 20, 2021
Int. Cl. H01L 29/08 (2006.01); H01L 27/12 (2006.01); G09G 3/3266 (2016.01); G09G 3/3291 (2016.01); H10K 50/11 (2023.01); H10K 50/81 (2023.01); H10K 50/82 (2023.01); H10K 50/844 (2023.01); H10K 59/131 (2023.01); H10K 59/121 (2023.01)
CPC H01L 27/1255 (2013.01) [G09G 3/3266 (2013.01); G09G 3/3291 (2013.01); H01L 27/124 (2013.01); H10K 50/11 (2023.02); H10K 50/81 (2023.02); H10K 50/82 (2023.02); H10K 50/8445 (2023.02); H10K 59/1213 (2023.02); H10K 59/1216 (2023.02); H10K 59/131 (2023.02); G09G 2300/0439 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A display apparatus comprising:
a substrate;
a display device disposed on the substrate; and
a pixel circuit connected to the display device, the pixel circuit comprising a first thin film transistor (TFT), a second TFT, and a capacitor, the capacitor comprising:
a bottom electrode on the substrate;
a top electrode overlapping the bottom electrode, the top electrode comprising an opening having a single closed shape; and
a dielectric layer between the bottom electrode and the top electrode;
wherein:
an overlapping area of the bottom electrode and the top electrode is divided by the opening into two separate areas; and
a portion of an edge of the bottom electrode is disposed inside the opening in a plan view.