US 12,461,606 B2
Optical pen and display system including optical interface
Gil Yeong Park, Yongin-si (KR); Hee Young Lee, Yongin-si (KR); Da Som Gu, Yongin-si (KR); Ki Jun Roh, Yongin-si (KR); Sung Guk An, 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 Dec. 5, 2023, as Appl. No. 18/528,958.
Claims priority of application No. 10-2023-0069442 (KR), filed on May 30, 2023.
Prior Publication US 2024/0402837 A1, Dec. 5, 2024
Int. Cl. G06F 3/0354 (2013.01)
CPC G06F 3/03542 (2013.01) [G06F 3/03545 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A display system including an optical interface, the display system comprising:
an optical pen outputting infrared light; and
a display device acquiring information on a user input based on the infrared light provided by the optical pen,
wherein the display device includes:
a panel layer; and
a code layer disposed on the panel layer, the code layer including an optical pattern absorbing at least a portion of the infrared light provided by the optical pen,
wherein the optical pen includes:
a pen body; and
a nib disposed in the pen body,
wherein the nib includes:
a nib head part including a first end portion and an opposite second end portion; and
a nib body part connected to the nib head part,
wherein the first end portion forms a curved surface, and
wherein a hardness of the nib is in a range of about 50 to about 90 with respect to Shore A hardness.