US 12,366,933 B2
Display device, electronic device and a position input system with touch sensing unit, code patterns and reflective surface
Da Som Gu, Yongin-si (KR); Gil Yeong Park, Yongin-si (KR); Ki Jun Roh, Yongin-si (KR); Sung Guk An, Yongin-si (KR); Hee Young Lee, Yongin-si (KR); and So Yeon Han, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Jan. 10, 2024, as Appl. No. 18/408,644.
Claims priority of application No. 10-2023-0044756 (KR), filed on Apr. 5, 2023.
Prior Publication US 2024/0338090 A1, Oct. 10, 2024
Int. Cl. G06F 3/041 (2006.01); G06F 3/03 (2006.01)
CPC G06F 3/0412 (2013.01) [G06F 3/0317 (2013.01); G06F 3/0321 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display device comprising:
a display unit including a plurality of sub-pixels;
a touch sensing unit formed on the display unit and configured to sense a touch position;
a code arrangement unit disposed on the touch sensing unit, wherein the code arrangement unit includes code patterns; and
a surface protection cover disposed on the code arrangement unit,
wherein a distance between the code patterns and a reflective surface formed below the code patterns is equal to or less than 55% of one width of one of the code patterns.