US 12,016,223 B2
Display device with driving IC having output pads with different heights
Hongam Kim, Seoul (KR); and Youngmin Cho, Seongnam-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by Samsung Display Co., LTD., Yongin-si (KR)
Filed on Jun. 21, 2021, as Appl. No. 17/352,991.
Claims priority of application No. 10-2020-0146918 (KR), filed on Nov. 5, 2020.
Prior Publication US 2022/0137682 A1, May 5, 2022
Int. Cl. H10K 59/131 (2023.01); G09F 9/30 (2006.01)
CPC H10K 59/131 (2023.02) [G09F 9/301 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A display device comprising:
a substrate including a display area and a pad area;
a display structure disposed in the display area on the substrate;
a driving integrated circuit disposed in the pad area on the substrate, and including:
a circuit part including an input area, a first output area adjacent to the display area, and a second output area between the input area and the first output area;
upper output bumps disposed in the first output area on a bottom surface of the circuit part; and
lower output bumps disposed in the second output area on the bottom surface of the circuit part;
first output pads disposed between the substrate and the upper output bumps, and having a first height; and
second output pads disposed between the substrate and the lower output bumps, and having a second height that is smaller than the first height, wherein
the circuit part consists of a single body upon which are attached both the upper output bumps and the lower output bumps.