US 11,861,116 B2
Display device and touch input system including the same
Gi Na Yoo, Cheonan-si (KR); Ju Yeon Kim, Asan-si (KR); Won Sang Park, Yongin-si (KR); Chang Woo Shim, Cheonan-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. 30, 2022, as Appl. No. 17/823,114.
Claims priority of application No. 10-2022-0005973 (KR), filed on Jan. 14, 2022.
Prior Publication US 2023/0229270 A1, Jul. 20, 2023
Int. Cl. G06F 3/044 (2006.01); G06F 3/0354 (2013.01); G06F 3/041 (2006.01); H10K 50/86 (2023.01); H10K 59/38 (2023.01); H10K 59/40 (2023.01)
CPC G06F 3/0441 (2019.05) [G06F 3/0446 (2019.05); H10K 50/865 (2023.02); H10K 59/38 (2023.02); H10K 59/40 (2023.02); G06F 2203/04112 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display device, comprising:
a display unit comprising a plurality of emission areas;
a plurality of touch electrodes that sense a touch,
wherein each of the plurality of touch electrodes comprises at least one portion disposed between adjacent emission areas among the plurality of emission areas;
a plurality of code patterns that cover a part of a front surface of at least one of the plurality of touch electrodes; and
a plurality of light-blocking dummy patterns formed on some of the plurality of touch electrodes on which the plurality of code patterns is not formed,
wherein a thickness of the plurality of code patterns is different from a thickness of the light-blocking dummy patterns, and a light-blocking rate of the plurality of code patterns is different from a light-blocking rate of the light-blocking dummy patterns.