US 12,229,377 B2
Detection device and touch-detection display device
Koichi Miyasaka, Tokyo (JP); Yoshikatsu Imazeki, Tokyo (JP); Yoichi Kamijo, Tokyo (JP); Shuichi Osawa, Tokyo (JP); and Toshinori Uehara, Tokyo (JP)
Assigned to Japan Display Inc., Tokyo (JP)
Filed by Japan Display Inc., Tokyo (JP)
Filed on Dec. 21, 2023, as Appl. No. 18/391,848.
Application 18/391,848 is a continuation of application No. 17/951,172, filed on Sep. 23, 2022, granted, now 11,893,194.
Application 17/951,172 is a continuation of application No. PCT/JP2021/011267, filed on Mar. 18, 2021.
Claims priority of application No. 2020-056871 (JP), filed on Mar. 26, 2020.
Prior Publication US 2024/0126395 A1, Apr. 18, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G06F 3/044 (2006.01); G02F 1/1333 (2006.01); G02F 1/1343 (2006.01); G06V 40/13 (2022.01)
CPC G06F 3/0446 (2019.05) [G02F 1/13338 (2013.01); G02F 1/134309 (2013.01); G06V 40/1306 (2022.01)] 20 Claims
OG exemplary drawing
 
1. A detection device comprising:
drive electrodes each of which is configured to be provided with a drive signal;
detection electrodes opposed to the drive electrodes and configured to generate capacitance between the detection electrodes and the drive electrodes; and
dummy electrodes in a floating state,
wherein the drive electrodes include
a first electrode extending in a first direction, and
a second electrode disposed at a predetermined interval from the first electrode in a second direction intersecting the first direction,
wherein the detection electrodes include a third electrode extending in the second direction,
wherein the dummy electrodes include a fourth electrode disposed at a predetermined interval from the third electrode in the first direction,
wherein the first electrode includes
a first extension part extending in a third direction different from the first direction,
a second extension part extending in a fourth direction different from the first direction and the third direction, and
a first coupling part through which the first extension part and the second extension part are coupled to each other,
wherein the second electrode includes
a third extension part extending in the fourth direction,
a fourth extension part extending in the third direction, and
a second coupling part through which the third extension part and the fourth extension part are coupled to each other,
wherein the first extension part and the third extension part are arranged in the second direction and opposed to each other,
wherein the second extension part and the fourth extension part are arranged in the second direction and opposed to each other,
wherein the third electrode includes
a fifth extension part extending in a fifth direction different from the second direction,
a sixth extension part extending in a sixth direction different from the second direction and the fifth direction, and
a third coupling part through which the fifth extension part and the sixth extension part are coupled to each other,
wherein the fourth electrode includes
a seventh extension part extending in the sixth direction, and
an eighth extension part extending in the fifth direction,
wherein the fifth extension part and the seventh extension part are arranged in the first direction and opposed to each other, and
wherein the sixth extension part and the seventh extension part are arranged in the first direction and opposed to each other.