公开(公告)号：US10691910B2

公开(公告)日：2020-06-23

申请号：US16126943

申请日：2018-09-10

Applicant: LG Display Co., Ltd.

Inventor： Guensik Lee ,  Kyoseop Choo ,  Manhyeop Han ,  Junghoon Lee

IPC: G06K9/00 ,  G06F1/16 ,  G06F3/041 ,  H05K1/18

Abstract: A display device and a mobile information terminal including the same are disclosed. The display device includes a display panel on which a fingerprint is touched, and a fingerprint sensor coupled to the display panel configured to sense light reflected from the fingerprint on a display area of the display panel. The fingerprint sensor is attached obliquely on the display panel at a predetermined angle to a reference line parallel to a long axis of the display panel.

公开(公告)号：US10514488B2

公开(公告)日：2019-12-24

申请号：US15819992

申请日：2017-11-21

Applicant: LG DISPLAY CO., LTD.

Inventor： Guensik Lee ,  Kyoseop Choo

IPC: G02B5/32 ,  F21V8/00 ,  G06K9/00

Abstract: The present disclosure relates to a flat panel display embedding an optical imaging sensor such as a fingerprint image sensor. The present disclosure suggests a flat panel display embedding an image sensor comprising: a display panel including a display area and a non-display area; and a directional optical unit having a length and a width corresponding to the display panel and a thickness, and attached on a top surface of the display panel, wherein the directional optical unit provides a sensing light to the display area, and wherein the sensing light is collimated and directionized to a predetermined direction.

公开(公告)号：US10007828B2

公开(公告)日：2018-06-26

申请号：US15176969

申请日：2016-06-08

Applicant: LG DISPLAY CO., LTD.

Inventor： Manhyeop Han ,  Kyoseop Choo ,  Moonbong Song ,  Jiho Cho

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

CPC classification number: G06K9/00013 ,  G06F3/0416 ,  G06F3/044

Abstract: Disclosed is a fingerprint sensor integrated type touch screen device that includes a touch screen having at least one fingerprint & touch area and a plurality of touch areas, each touch area including Tx electrode lines of a first group crossing Rx electrode lines of the first group, and touch sensors at crossings of the Tx electrode lines of the first group and the Rx electrode lines of the first group; and a touch integrated circuit (IC) that supplies a sensor driving signal of a same phase to the Tx electrode lines of the first group, groups first effective Rx channels of the Rx electrode lines of the first group as a bundle, and simultaneously senses the first effective Rx channels through a first touch sensing part, wherein first ineffective Rx channels of the Rx electrode lines of the first group are electrically disconnected from the first touch sensing part.

公开(公告)号：US09911025B2

公开(公告)日：2018-03-06

申请号：US15015687

申请日：2016-02-04

Applicant: LG DISPLAY CO., LTD.

Inventor： Manhyeop Han ,  Kyoseop Choo

IPC: G06K9/00 ,  G06F3/048

CPC classification number: G06K9/0002 ,  G06F3/048

Abstract: A sensor screen and a display device including the same are described. The sensor screen can include a first base member including a first active area and a first bezel area and having a first thickness, a second base member which is positioned opposite the first base member and has a second thickness less than the first thickness, and at least one fingerprint sensor disposed in a portion of the first bezel area of one of the first and second base members. The fingerprint sensor can include a plurality of first fingerprint electrodes arranged in a first direction and a plurality of second fingerprint electrodes, which are insulated from the first fingerprint electrodes and are arranged in a second direction crossing the first direction.

公开(公告)号：US09711583B2

公开(公告)日：2017-07-18

申请号：US14558434

申请日：2014-12-02

Applicant: LG DISPLAY CO., LTD.

Inventor： Kyoseop Choo ,  Jonguk Bae ,  Bokyoung Cho

IPC: H01L27/32 ,  H01L29/786

CPC classification number: H01L27/3272 ,  H01L29/7869

Abstract: Discussed is a display device, that may include a substrate divided into a display area and a non-display area except the display area, a first light shielding film formed in the display area, a second light shielding film formed in the non-display area, and oxide thin film transistors and organic light emitting diodes, which are formed on the first light shielding film, wherein the first light shielding film and the second light shielding film are spaced apart from each other.

公开(公告)号：US10741621B2

公开(公告)日：2020-08-11

申请号：US15818027

申请日：2017-11-20

Applicant: LG DISPLAY CO., LTD.

Inventor： Kyoseop Choo ,  Buyeol Lee ,  Jonghee Hwang ,  Guensik Lee

IPC: H01L27/32 ,  H01L51/52 ,  H01L51/00 ,  G06K9/00 ,  H04M1/02 ,  H04M1/67

Abstract: Disclosed is a display device including a display panel configured to be situated under a transparent substrate and display an image on a display area toward the transparent substrate, a fingerprint sensor under the display panel to detect a fingerprint contacting the transparent substrate, and a drive integrated circuit (drive IC) configured to drive the display panel.

公开(公告)号：US10714554B2

公开(公告)日：2020-07-14

申请号：US15807295

申请日：2017-11-08

Applicant: LG DISPLAY CO., LTD.

Inventor： Kyoseop Choo ,  Guensik Lee ,  Manhyeop Han

IPC: G09G3/3233 ,  G09G3/3291 ,  H01L27/32

Abstract: Disclosed is an electroluminescent display device integrated with image sensors, including: a display panel having a plurality of pixels; a display panel driving circuit configured to write data of an input image into the pixels during a display mode so as to display the input image with the pixels; and a sensor processing circuit configured to apply a reverse bias to Organic Light Emitting Diodes (OLEDs) disposed in at least some of the pixels during a sensor mode so as to process sensor signals received from the pixels.

公开(公告)号：US10338731B2

公开(公告)日：2019-07-02

申请号：US15385238

申请日：2016-12-20

Applicant: LG DISPLAY CO., LTD.

Inventor： Moonbong Song ,  Kyoseop Choo

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

Abstract: A fingerprint sensor integrated type touchscreen device comprises a sensor array comprising a touch sensor area with sensors, a fingerprint and touch sensor area with sensors, sensor lines connected to the sensors in the touch sensor area, and sensors lines connected to the sensors in the fingerprint and touch sensor area. At least some of the sensor lines connected to the sensors in the fingerprint and touch sensor area are separated from the sensor lines connected to the sensors in the touch sensor area.

公开(公告)号：US10216971B2

公开(公告)日：2019-02-26

申请号：US15377173

申请日：2016-12-13

Applicant: LG Display Co., Ltd.

Inventor： Jiho Cho ,  Kyoseop Choo ,  Buyeol Lee ,  Moonbong Song ,  Manhyeop Han

IPC: G06F3/041 ,  G06K9/00 ,  G06F3/044 ,  G06F3/0488 ,  G09G3/00

Abstract: A display device and a method of driving the same are disclosed. The display device includes a display panel including a first display area and a second display area that are adjacent to each other, and a first touch sensor disposed in the first display area, a sensor screen disposed on the display panel and including a fingerprint sensor and a second touch sensor at a location corresponding to the second display area of the display panel, a display touch integrated circuit (IC) configured to drive pixels of the first and second display areas and the first touch sensor, and a fingerprint touch IC configured to drive the fingerprint sensor in a portion of one frame period, in which the first touch sensor is not driven.

公开(公告)号：US10176358B2

公开(公告)日：2019-01-08

申请号：US14954347

申请日：2015-11-30

Applicant: LG Display Co., Ltd.

Inventor： Manhyeop Han ,  Kyoseop Choo ,  Moonbong Song

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

Abstract: A touch sensing device comprises touch electrodes having a first resolution for sensing touch in the active area. The touch sensing device also includes combination touch and fingerprint electrodes having a second resolution for sensing both touch and a fingerprint in the active area, the second higher than the first resolution. The touch sensing device also includes a touch and fingerprint controller that respectively applies a touch driving voltage for sensing touch to the plurality of touch electrodes and the plurality of combination touch and fingerprint electrodes during a touch driving mode of a touch period of the touch sensing device, and the touch and fingerprint controller applies a fingerprint driving voltage for sensing a fingerprint to the plurality of combination touch and fingerprint electrodes during a fingerprint mode of the touch period.