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：US11852910B2

公开(公告)日：2023-12-26

申请号：US17739519

申请日：2022-05-09

Applicant: LG DISPLAY CO., LTD.

Inventor： Junghoon Lee ,  Nam Yong Gong

IPC: G02F1/1333 ,  H01L27/12 ,  G09G3/36 ,  G02F1/1368 ,  G09G3/3225 ,  H10K59/123 ,  H10K59/131

CPC classification number: G02F1/133308 ,  G02F1/1368 ,  G09G3/3225 ,  G09G3/3648 ,  H01L27/124 ,  H10K59/123 ,  H10K59/131

Abstract: A display apparatus comprises a display panel including a pixel area in which a plurality of pixels is disposed and a peripheral area outside the pixel area; a transmissive light source disposed in a first area of the pixel area; and a timing controller which controls the transmissive light source not to emit light when pixels disposed corresponding to the first area of the pixel area among the plurality of pixels are present in at least one of an image data input period and a pixel light emission period.

公开(公告)号：US11353733B2

公开(公告)日：2022-06-07

申请号：US16550120

申请日：2019-08-23

Applicant: LG Display Co., Ltd.

Inventor： Junghoon Lee ,  NamYong Gong

IPC: G02F1/1333 ,  H01L27/12 ,  H01L27/32 ,  G09G3/36 ,  G02F1/1368 ,  G09G3/3225

Abstract: A display apparatus comprises a display panel including a pixel area in which a plurality of pixels is disposed and a peripheral area outside the pixel area; a transmissive light source disposed in a first area of the pixel area; and a timing controller which controls the transmissive light source not to emit light when pixels disposed corresponding to the first area of the pixel area among the plurality of pixels are present in at least one of an image data input period and a pixel light emission period.

公开(公告)号：US11216634B2

公开(公告)日：2022-01-04

申请号：US17107746

申请日：2020-11-30

Applicant: LG Display Co., Ltd.

Inventor： Yongkyun Choi ,  KiDuk Kim ,  JiHo Cho ,  ManHyeop Han ,  Junghoon Lee

IPC: G06K9/00 ,  G06K9/20 ,  B06B1/02 ,  B06B1/06 ,  G06F3/043

Abstract: An ultrasonic sensor and a display device and may drive a plurality of sensing pixels disposed in the ultrasonic sensor simultaneously to transmit an ultrasonic wave, may make a first electrode disposed in a sensing pixel to be floated at a timing receiving a reflected signal to store the signal, and then may perform a sensing sequentially. Therefore, as an accurate sensing may be possible while reducing a duration and a number of an ultrasonic wave transmitting, a sensitivity and an accuracy of a sensing may be maintained while improving a driving efficiency of the ultrasonic sensor.

公开(公告)号：US10776598B2

公开(公告)日：2020-09-15

申请号：US15838143

申请日：2017-12-11

Applicant: LG Display Co., Ltd.

Inventor： Junghoon Lee ,  Guensik Lee

IPC: G06K9/00 ,  H05K1/18 ,  H05K1/11 ,  G06F3/041 ,  H05K1/02

Abstract: Disclosed herein is an optical image sensor device comprising a light source; a first printed circuit board (PCB) having a first through hole for accommodating the light source; a directional light unit configured to progress a light from the light source through a total refraction, and configured to converge light deviated from the total reflection by an object having biometric information when the object is placed to be adjacent to the directional light unit in a predetermined area, and emit it outside thereof; and an optical sensor between the first PCB and the directional light unit to receive the light emitted from the directional light unit.

公开(公告)号：US09665196B2

公开(公告)日：2017-05-30

申请号：US14983257

申请日：2015-12-29

Applicant: LG DISPLAY CO., LTD.

Inventor： Hyangmyoung Gwon ,  Ahra Cho ,  Jaeseung Kim ,  Junghoon Lee

IPC: G09G1/00 ,  G06F3/041 ,  G06F3/047 ,  G09G3/36

CPC classification number: G06F3/0412 ,  G06F3/0416 ,  G06F3/044 ,  G06F3/047 ,  G09G3/3655 ,  G09G3/3677 ,  G09G3/3688 ,  G09G3/3696 ,  G09G2300/0426

Abstract: Provided is a touch sensor-integrated type display device that includes a plurality of gate lines and data lines disposed to intersect each other; a plurality of pixel electrodes; a plurality of first touch/common electrodes disposed in an active area; a plurality of second touch/common electrodes disposed in a bezel area; a gate driver; a driver IC; and switching elements. The switching elements electrically connect the first touch/common electrodes to the the second touch/common electrodes which are adjacent to each other in response to a control signal.

公开(公告)号：US11694638B1

公开(公告)日：2023-07-04

申请号：US17982267

申请日：2022-11-07

Applicant: LG Display Co., Ltd.

Inventor： Yongkyun Choi ,  Junghoon Lee

IPC: G09G3/3291 ,  G09G3/3266

CPC classification number: G09G3/3291 ,  G09G3/3266 ,  G09G2300/0842 ,  G09G2310/0278 ,  G09G2320/0271

Abstract: According to an aspect of the present disclosure, a display device includes a display panel in which a plurality of sub-pixels is disposed. Also, the display device includes a data driver configured to supply a plurality of data voltages to the plurality of sub-pixels through a plurality of data lines. Further, the display device includes a gate driver configured to supply a plurality of gate signals to the plurality of sub-pixels through a plurality of gate lines. Each of the plurality of sub-pixels includes a light emitting diode, a driving transistor, and a variable resistance circuit disposed in series between a low-potential voltage terminal and a high-potential voltage terminal. When each of the plurality of sub-pixels implements a low grayscale, the variable resistance circuit increases a resistance between the high-potential voltage terminal and the driving transistor. Thus, a low grayscale can be normally implemented.

公开(公告)号：US11314960B2

公开(公告)日：2022-04-26

申请号：US16913977

申请日：2020-06-26

Applicant: LG Display Co., Ltd.

Inventor： Ji-Ho Cho ,  ManHyeop Han ,  Yongkyun Choi ,  Junghoon Lee

IPC: G06K9/00 ,  G06F3/041

Abstract: A display apparatus including a large-area fingerprint sensor includes a display panel displaying an image; a touch panel sensing a touch of a finger; a fingerprint sensor including a plurality of fingerprint pixels and recognizing a fingerprint of the finger; a fingerprint sensor driver driving the fingerprint sensor and including a driver driving the fingerprint sensor and a fingerprint recognizer recognizing a fingerprint by using sensing signals received from the fingerprint sensor; and a touch driver driving the touch panel, wherein the driver of the fingerprint sensor driver provides a sensing gate signal to sensing gate lines included in a first touch block determined being touched by touch position information received from the touch driver, among m (where m being an integer of 2 or greater) number of sensing gate lines included in the fingerprint sensor.

公开(公告)号：US10657352B2

公开(公告)日：2020-05-19

申请号：US15834959

申请日：2017-12-07

Applicant: LG Display Co., Ltd.

Inventor： Guensik Lee ,  Seungman Ryu ,  ARa Yoon ,  Junghoon Lee

IPC: G06K9/00 ,  H01L27/32 ,  G06F3/042 ,  G06F3/041 ,  G02F1/1333 ,  G06F1/16 ,  G02B5/32 ,  H04M1/02 ,  F21V8/00

Abstract: The present disclosure relates to a flat panel display embedding an optical imaging sensor such as a fingerprint image sensor. The present disclosure provides 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 includes: a first cover plate and a second cover plate having a size corresponding to the length and the width and joining each other by a first low refractive layer between the first cover plate and the second cover plate; a light radiating film corresponding to the display area under the second cover plate; a light incident film disposed outside of the display area at one lateral side of the light radiating film, under the second cover plate; a second low refractive layer disposed under the light radiating film and the light incident film, and attached on the top surface of the display panel; and a light source disposed at the lateral side of the display panel as facing with the light incident film.

公开(公告)号：US12235530B2

公开(公告)日：2025-02-25

申请号：US18389057

申请日：2023-11-13

Applicant: LG DISPLAY CO., LTD.

Inventor： Junghoon Lee ,  Nam Yong Gong

IPC: G02F1/1333 ,  G02F1/1368 ,  G09G3/3225 ,  G09G3/36 ,  H01L27/12 ,  H10K59/123 ,  H10K59/131

Abstract: A display apparatus includes a display panel including a pixel area in which a plurality of pixels is disposed and a peripheral area outside the pixel area; a transmissive light source disposed in a first area of the pixel area; and a timing controller which controls the transmissive light source not to emit light when pixels disposed corresponding to the first area of the pixel area among the plurality of pixels are present in at least one of an image data input period and a pixel light emission period.