US 11,837,008 B2
Touch sensor with fingerprint sensor
Jun Hyung Kim, Daejeon (KR); Sang Yoon Ji, Daejeon (KR); and Jang-Ung Park, Seoul (KR)
Assigned to SK Innovation Co., Ltd., Seoul (KR); and Industry-Academic Cooperation Foundation, Yonsei University, Seoul (KR)
Filed by SK Innovation Co., Ltd., Seoul (KR); and Industry-Academic Cooperation Foundation, Yonsei University, Seoul (KR)
Filed on Jan. 13, 2021, as Appl. No. 17/147,917.
Claims priority of application No. 10-2020-0004844 (KR), filed on Jan. 14, 2020.
Prior Publication US 2021/0216737 A1, Jul. 15, 2021
Int. Cl. G06V 40/13 (2022.01); G06F 3/044 (2006.01)
CPC G06V 40/1306 (2022.01) [G06F 3/0445 (2019.05)] 9 Claims
OG exemplary drawing
 
1. A touch sensor with a fingerprint sensor, comprising:
a lower electrode layer including a plurality of first touch sensor electrodes arranged two-dimensionally, first dummy electrodes, and one or more first fingerprint sensor electrodes; and
an upper electrode layer formed on one side of the lower electrode layer and including a plurality of second touch sensor electrodes arranged two-dimensionally, second dummy electrodes, and one or more second fingerprint sensor electrodes,
wherein the first fingerprint sensor electrode and the second fingerprint sensor electrode are arranged at the same position so as to face each other to constitute the fingerprint sensor, and
the first touch sensor electrode and the second dummy electrode are arranged at the same position so as to face each other, and the second touch sensor electrode and the first dummy electrode are arranged at the same position so as to face each other,
wherein the fingerprint sensor is disposed at a vertex of an outer side of a touch display device,
wherein the fingerprint sensor is disposed to be spaced apart from an outer side of a touch display device inward by one or more first touch sensor electrodes or second touch sensor electrodes,
wherein light transmittances of a first touch sensor constituted by the first touch sensor electrode and the second dummy electrode, a second touch sensor constituted by the second touch sensor electrode and the first dummy electrode, and the fingerprint sensor are the same as each other.