US 11,816,274 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); Seong Jun Lee, Seoul (KR); and Dong Hee Choi, Asan-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Oct. 4, 2022, as Appl. No. 17/937,885.
Claims priority of application No. 10-2022-0019914 (KR), filed on Feb. 16, 2022.
Prior Publication US 2023/0259219 A1, Aug. 17, 2023
Int. Cl. G06F 3/03 (2006.01); G06F 3/041 (2006.01); G06F 3/0354 (2013.01); G06F 3/038 (2013.01); G06F 3/044 (2006.01)
CPC G06F 3/0317 (2013.01) [G06F 3/0383 (2013.01); G06F 3/03542 (2013.01); G06F 3/0412 (2013.01); G06F 3/0446 (2019.05)] 21 Claims
OG exemplary drawing
 
1. A display device comprising:
a display unit including a plurality of light emitting areas;
a plurality of touch electrodes disposed between the plurality of light emitting areas and configured to sense a touch;
a plurality of grid patterns separated from the plurality of touch electrodes in a preset shape or formed integrally with the plurality of touch electrodes; and
a plurality of code patterns formed in a preset code shape in some areas of a front surface corresponding to the plurality of touch electrodes,
wherein the plurality of grid patterns comprise grid reference points of intersecting grid reference lines, and are respectively formed at positions corresponding to the grid reference points,
wherein the plurality of grid patterns are formed to have a width or an extent in at least one of horizontal, vertical, and diagonal directions in plan view that is wider than a width or an extent of each of the plurality of touch electrodes.