US 12,032,790 B2
Display device and touch sensing system including the same
Da Som Gu, Yongin-si (KR); Ki Jun Roh, Yongin-si (KR); Gil Yeong Park, 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. 24, 2023, as Appl. No. 18/158,951.
Claims priority of application No. 10-2022-0077954 (KR), filed on Jun. 27, 2022.
Prior Publication US 2023/0418418 A1, Dec. 28, 2023
Int. Cl. G06F 3/042 (2006.01); G02F 1/1333 (2006.01); G02F 1/1337 (2006.01); G06F 3/0354 (2013.01); G06F 3/041 (2006.01); G06F 3/044 (2006.01); H10K 59/40 (2023.01)
CPC G06F 3/042 (2013.01) [G02F 1/13338 (2013.01); G02F 1/1337 (2013.01); G06F 3/03542 (2013.01); G06F 3/0416 (2013.01); G06F 3/0446 (2019.05); H10K 59/40 (2023.02); G02F 2203/11 (2013.01); G06F 2203/04106 (2013.01); G06F 2203/04111 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A display device comprising:
a substrate;
a display layer disposed on the substrate and including a plurality of light emitting areas;
a code pattern layer disposed on the display layer and including a plurality of position code patterns;
a window; and
a reflective layer disposed between the window and the code pattern layer,
wherein the reflective layer receives a first light having a first wavelength band incident from the outside, reflects the first light off at least one of the position code patterns to generate reflected light and receives the reflected light to generate second light having a second wavelength band, and
wherein a first peak wavelength of the first light is smaller than a second peak wavelength of the second light.