公开(公告)号：US12217707B2

公开(公告)日：2025-02-04

申请号：US18176702

申请日：2023-03-01

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Bo Kwang Song ,  Tae Kyung Ahn ,  Gun Hee Kim ,  Dae Young Lee

IPC: G09G3/3291 ,  G06V40/13

Abstract: A display device includes light emitting pixels that emit light, photosensors each controlling a sensed current according to an incident light, and a read-out circuit that senses the sensed current of each of the photosensors and converts the sensed current into digital sensed data. In a sensing mode including a first frame period and a second frame period, the light emitting pixels include first sensing pixels that emit the light during the first frame period and second sensing pixels that do not emit the light during the first frame period, the photosensors include first photosensors and second photosensors, and a first distance between any one of the first sensing pixels and a first photosensor adjacent to the first sensing pixel among the first photosensors is greater than a second distance between the first sensing pixel and a second photosensor adjacent to the first sensing pixel among the second photosensors.

公开(公告)号：US10671225B2

公开(公告)日：2020-06-02

申请号：US15866147

申请日：2018-01-09

Applicant: Samsung Display Co., Ltd.

Inventor： Han Yung Jung ,  Chaun Gi Choi ,  Ji Hun Ryu ,  Jung Ha Son ,  Tae Kyung Ahn

IPC: G06F3/044 ,  G06F3/041 ,  H01L41/113 ,  H01L41/18 ,  H01L51/52 ,  H01L27/32 ,  H01L41/193

Abstract: A touch sensor includes: a first insulating layer disposed on a substrate; a plurality of first touch sensing cells disposed on the first insulating layer and coupled to each other in a first direction by first coupling patterns; a plurality of second touch sensing cells disposed on the first insulating layer and coupled to each other in a second direction by second coupling patterns; and a second insulating layer disposed on the first touch sensing cells and the second touch sensing cells. At least one of the first insulating layer or the second insulating layer includes a piezoelectric material.

公开(公告)号：US20230114014A1

公开(公告)日：2023-04-13

申请号：US17880632

申请日：2022-08-03

Applicant: Samsung Display Co., LTD.

Inventor： Kwang Soo BAE ,  Hyeon Sik Kim ,  Jung Woo Park ,  Tae Kyung Ahn ,  Dae Young Lee

IPC: H01L27/28 ,  H01L27/32 ,  H01L51/52 ,  H01L51/44 ,  H01L51/56

Abstract: A display device includes a substrate, and unit pixels provided in the substrate, and including sub-pixels each having a light-emitting element emitting light, and photo-sensing pixels each having a light-receiving element outputting a sensing signal corresponding to the light. Each of the sub-pixels may include an emission area emitting the light, and each of the photo-sensing pixels may include a light-receiving area receiving the light. The emission area and the light-receiving area may be provided in the substrate to be spaced apart from each other. Each of the emission area and the light-receiving area may have a shape of a quadrangular plane.