US 12,008,187 B2
Display device and position input system including the same
Eun Young Kim, Asan-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Oct. 3, 2022, as Appl. No. 17/937,483.
Claims priority of application No. 10-2022-0026748 (KR), filed on Mar. 2, 2022.
Prior Publication US 2023/0350511 A1, Nov. 2, 2023
Int. Cl. G06F 3/041 (2006.01); G06F 3/044 (2006.01); G06F 3/0488 (2022.01)
CPC G06F 3/0416 (2013.01) [G06F 3/0488 (2013.01); G06F 2203/04112 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A display device comprising:
a display panel;
a display unit comprising a plurality of emission areas, wherein the display unit is disposed on the display panel;
a plurality of touch electrodes disposed between the plurality of emission areas,
wherein the plurality of touch electrodes is configured to sense a touch input; and,
a plurality of position code patterns disposed in position code pattern forming regions on the display panel, wherein each position code pattern of the plurality of position code patterns overlaps a corresponding touch electrode of the plurality of touch electrodes in a corresponding position code pattern forming region,
wherein a width in a horizontal direction of the touch electrodes formed in the position code pattern forming regions is greater than a width in the horizontal direction of the position code patterns overlapping a front surface thereof,
wherein the horizontal direction is parallel to an extending plane of the display panel, and
wherein a formation width of a first touch sensor area formed in position code patterns is greater than a formation width of a second touch sensor area formed in peripheral regions,
wherein the first touch sensor area and the second touch sensor area each comprises a plurality of driving electrodes, a plurality of sensing electrodes, and a plurality of dummy electrodes.