US 12,436,655 B2
Touch panel and display device including the same
Eung Kwan Lee, Yongin-si (KR); Tae Joon Kim, Yongin-si (KR); Ji Yeong Lee, Yongin-si (KR); Hyun Wook Cho, Yongin-si (KR); and Jae Woo Choi, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Apr. 17, 2024, as Appl. No. 18/637,955.
Claims priority of application No. 10-2023-0117971 (KR), filed on Sep. 5, 2023.
Prior Publication US 2025/0077034 A1, Mar. 6, 2025
Int. Cl. G06F 3/044 (2006.01); G06F 3/041 (2006.01)
CPC G06F 3/0448 (2019.05) [G06F 3/0416 (2013.01); G06F 3/0446 (2019.05)] 20 Claims
OG exemplary drawing
 
1. A touch panel, comprising:
a plurality of touch cells; and
a central area and an edge area,
wherein the plurality of touch cells is arranged in a first direction and a second direction crossing the first direction, and is located in the central area and the edge area,
the edge area comprises first to fourth sub-edge areas,
shapes of touch cells in the central area among the plurality of touch cells are different from shapes of touch cells in the edge area among the plurality of touch cells, and
shapes of touch cells in the first and second sub-edge areas among the plurality of touch cells are different from shapes of touch cells in the third and fourth sub-edge areas among the plurality of touch cells,
wherein the touch cells in the edge area each comprise:
a first electrode; and
a second electrode that does not overlap the first electrode,
wherein the first electrode comprises:
a central pattern having a rectangular shape in which a length of a side extending in the first direction is shorter than a length of a side extending in the second direction; and
a plurality of peripheral patterns having a rectangular shape in which a length of a side extending in the first direction is longer than a length of a side extending in the second direction,
wherein, in the first sub-edge area each of a first group of the peripheral patterns extends from the central pattern in the first direction, and each of a second group of the peripheral patterns extends from the central pattern in a direction opposite to the first direction.