公开(公告)号：US10929634B2

公开(公告)日：2021-02-23

申请号：US15840672

申请日：2017-12-13

Applicant: Samsung Display Co., Ltd.

Inventor： Yong Jin Jee ,  A Ram Song ,  Yun Ho Kim

IPC: G06K9/00 ,  G06F3/041 ,  G06F3/044

Abstract: An operating method of a touch sensor includes sensing first touch intensities in a first touch-sensing area by using first touch cells, sensing second touch intensities in a second touch-sensing area that is adjacent to the first touch-sensing area by using second touch cells each having an area that is smaller than that of each of the first touch cells, grouping some second touch cells among the second touch cells as a touch-sensing group having a same area as one of the first touch cells, calculating a representative touch intensity of the touch-sensing group by using the second touch intensities sensed by second touch cells in the touch-sensing group, and detecting a touch position by using the first touch intensities and the representative touch intensity.

公开(公告)号：US20200343312A1

公开(公告)日：2020-10-29

申请号：US16809434

申请日：2020-03-04

Applicant: Samsung Display Co., Ltd.

Inventor： Ji Hun Ryu ,  Eun Jin Sung ,  Yun Ho Kim ,  Il Nam Kim ,  Won Sang Park

IPC: H01L27/32 ,  G06K9/00 ,  H01L51/52 ,  G09G3/3266 ,  G09G3/3275

Abstract: A display device includes a light sensing array layer (LSAL), a substrate, a selective light transmission layer (SLTL), a pixel circuit layer (PCL), a display element layer (DEL), and pixels. The LSAL includes an optical sensor to sense incident light. The substrate is on the LSAL and includes a display area (DA) including pixel areas (PAs), and a non-DA adjacent to the DA. The SLTL is disposed on the substrate and includes through-holes to form a path of light onto the optical sensor, and a light-blocking conductive pattern (LBCP) between the through-holes. The PCL is disposed on the SLTL and includes a conductive layer and an insulation layer. The DEL is disposed on the PCL and emits light. Each pixel includes a pixel circuit disposed on the PCL, and a light emitting element on the DEL in a corresponding pixel area. The LBCP is electrically connected to the conductive layer.

公开(公告)号：US10817696B2

公开(公告)日：2020-10-27

申请号：US16115164

申请日：2018-08-28

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Katsumasa Yoshii ,  Ji Hun Ryu ,  Yun Ho Kim ,  Il Nam Kim ,  Han Yung Jung

IPC: G06K9/28 ,  G06K9/00 ,  G02F1/1333 ,  G06F3/041 ,  H01L29/786 ,  H01L27/12 ,  G02F1/133 ,  G02F1/1345

Abstract: A display device includes a base, a photosensor disposed on a surface of the base, a light emitting element disposed on the photosensor that includes a bottom electrode, an upper electrode and a light emitting layer interposed between the bottom electrode and the upper electrode, and a light condenser disposed on the light emitting element. The light condenser does not overlap the bottom electrode in a plan view.

公开(公告)号：US10804501B2

公开(公告)日：2020-10-13

申请号：US16249506

申请日：2019-01-16

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Yun Ho Kim ,  Go Woon Kang

IPC: H01L51/52 ,  G06K9/00 ,  H01L27/32 ,  H01L27/30

Abstract: A display device includes a light shielding layer having an opening. A fingerprint sensor is disposed within or overlapping the opening of the light shielding layer. A light path control layer is disposed on the fingerprint sensor and the light shielding layer. The light path control layer covers the opening of the light shielding layer. A display panel is disposed on the light path control layer and includes a plurality of display elements. A window panel is disposed on the display panel.

公开(公告)号：US10324569B2

公开(公告)日：2019-06-18

申请号：US15153303

申请日：2016-05-12

Applicant: Samsung Display Co., Ltd.

Inventor： Yun Ho Kim ,  Ja Seung Ku

IPC: G06F3/044

Abstract: A touch screen panel and a driving method thereof. The touch screen panel includes a touch pad unit including a plurality of receiver pads and a plurality of transmitter pads combined with the receiver pads, and a touch sensing unit for determining a touch position, based on changes in mutual capacitance between the receiver pads and the transmitter pads. The touch sensing unit determines maximum values for every column by scanning touch sensing signals in the column direction of the touch pad unit, decides whether rows having maximum values for every column are the same, when the rows having the maximum values for every column are not the same, determines a greatest value by comparing all values of the scanned touch sensing signals, and determines touch coordinates through a combination of transmitter and receiver pads corresponding to the position at which the greatest value exists.

公开(公告)号：US20190138123A1

公开(公告)日：2019-05-09

申请号：US16004447

申请日：2018-06-11

Applicant: Samsung Display Co., Ltd.

Inventor： Keum Dong JUNG ,  Ki Seo Kim ,  II Nam Kim ,  Kyung Tea Park ,  Yun Ho Kim ,  Jae Kyoung Kim ,  Won Sang Park ,  Jong In Baek

IPC: G06F3/044 ,  G06K9/00

Abstract: A fingerprint sensor including first, second, and third lines, and a unit sensor coupled to the first, the second, and the third lines. The unit sensor includes a pixel electrode coupled between the first line and the second line, a first capacitance element coupled between the first line and the pixel electrode, a second capacitance element coupled between the second line and the pixel electrode, a switching element coupled between the pixel electrode and one of the first line, the second line, a first line of an adjacent unit sensor, and a second line of the adjacent unit sensor, and including a control electrode coupled to the third line, and a third capacitance element coupled between the third line and the pixel electrode, in which at least one of the first and the second capacitance elements includes a variable capacitance element.