公开(公告)号：US20190056822A1

公开(公告)日：2019-02-21

申请号：US16102942

申请日：2018-08-14

Applicant: LG Display Co., Ltd.

Inventor： Soyoung LEE ,  SeungHwan SHIN

IPC: G06F3/044 ,  G06F3/047 ,  G06F3/041

Abstract: Provided are a display device and a sensing method thereof that include: a display panel comprising a plurality of pixels; a first sensing unit configured to detect a touch of the display panel and output a first sensing signal; a second sensing unit configured to detect light and output a second sensing signal; a sensing driver IC configured to output the first sensing signal and the second sensing signal received from the first sensing unit and the second sensing unit as sensing voltages; and a controller configured to divide the sensing voltages received from the sensing device IC into the first sensing signal and the second sensing signal.

公开(公告)号：US20210132715A1

公开(公告)日：2021-05-06

申请号：US16916824

申请日：2020-06-30

Applicant: LG Display Co., Ltd.

Inventor： SeungHwan SHIN ,  DaeYoung SEO

IPC: G06F3/042 ,  G09G3/20 ,  G06F3/041

Abstract: A display device is capable of sensing a user's touching or inputting by a laser pointer on a display panel, by means of arranging a photo transistor in some pixels of the display panel to sense off-current of the photo transistor according to a change in the quantity of external light. In addition, a common electrode overlapping a data line is arranged separately from a common electrode overlapping a read-out line from which a sensing signal is detected, thereby improving the sensing performance carried out simultaneously with the display driving, owing to reduced influence of noise caused by the display driving to the sensing signal.

公开(公告)号：US20180120614A1

公开(公告)日：2018-05-03

申请号：US15682944

申请日：2017-08-22

Applicant: LG DISPLAY CO., LTD.

Inventor： SeungHwan SHIN ,  Gyutae KANG ,  Daeyoung SEO ,  Soyoung LEE ,  YoungMin JEONG

IPC: G02F1/133 ,  G02F1/1368 ,  G02F1/1362 ,  H01L27/144 ,  G09G3/36

Abstract: A display panel and display device are provided that may be capable of sensing an external light source, such as a laser. The display device may include a display panel including gate lines, data lines, and sub-pixels defined at intersections between the gate lines and the data lines; a light source-sensing circuit in an inactive area of the sub-pixels to sense an external light source; and a monochromatic color filter pattern disposed on a sensor transistor of the light source-sensing circuit. Thus, the incident amount of an external light source other than a laser can be reduced, and the incident amount of the laser can be increased. Accordingly, it may be possible to decrease an initial off-current caused by an external light source and improve the sensitivity in laser sensing. Thus, the size of the sensor transistor can be reduced and aperture ratio can be increased.

公开(公告)号：US20230215388A1

公开(公告)日：2023-07-06

申请号：US17977793

申请日：2022-10-31

Applicant: LG Display Co., Ltd.

Inventor： SeungHwan SHIN ,  WonHo LEE ,  YoungMin JEONG

IPC: G09G3/3291 ,  G09G3/3266

CPC classification number: G09G3/3291 ,  G09G3/3266 ,  G09G2300/0452 ,  G09G2300/0842 ,  G09G2310/08 ,  G09G2320/0233

Abstract: A display device can include a display panel having a plurality of pixels, each of the plurality of pixels including a plurality of sub pixels having different colors, a data driver to supply a data voltage to the plurality of pixels via a plurality of data lines, and a gate driver to supply a gate signal to the plurality of pixels via a plurality of gate lines. Also, the plurality of sub pixels are sequentially disposed in a same column, each of the plurality of data lines is divided into two sub data lines, and the two sub data lines are disposed on opposite sides of the plurality of sub pixels disposed in the same column.

公开(公告)号：US20200064967A1

公开(公告)日：2020-02-27

申请号：US16537707

申请日：2019-08-12

Applicant: LG Display Co., Ltd.

Inventor： SeungHwan SHIN ,  Daeyoung SEO

IPC: G06F3/042 ,  G02F1/1333

Abstract: A display device according to an aspect of the present disclosure includes a lead-out line disposed between the data lines in the second direction, first and second photo touch sensors disposed in left and right pixels of the lead-out line and electrically connected to the lead-out line to transmit a touch sensing signal, first and second sensing data lines disposed in the second direction and applying first and second sensor data signals to the first and second photo touch sensors and first and second sensing gate lines disposed in the first direction and applying first and second sensor gate signals to the first and second photo touch sensors.

公开(公告)号：US20200033994A1

公开(公告)日：2020-01-30

申请号：US16519137

申请日：2019-07-23

Applicant: LG Display Co., Ltd.

Inventor： SeungHwan SHIN ,  Joon HEO

IPC: G06F3/042 ,  G02F1/1333 ,  G02F1/1368 ,  H01L27/144 ,  G02F1/1343 ,  G06F3/041

Abstract: A display device comprises a plurality of gate lines disposed in a first direction; a plurality of data lines disposed in a second direction different from the first direction and defining a plurality of pixels with the plurality of gate lines; a sensor pixel part including the plurality of pixels; a photo touch sensor disposed in the sensor pixel part; a first read-out line transferring a touch sensing signal of the photo touch sensor and a second read-out line configured to detect a noise, the first and second read-out lines disposed between the data lines in the second direction; a sensing data line disposed in the second direction and applying a sensor data signal to the photo touch sensor; and a sensing display gate line disposed in the first direction and applying a sensor gate signal to the photo touch sensor.

公开(公告)号：US20190056839A1

公开(公告)日：2019-02-21

申请号：US16103246

申请日：2018-08-14

Applicant: LG Display Co., Ltd.

Inventor： SeungHwan SHIN ,  Soyoung LEE

IPC: G06F3/042 ,  G06F3/041

Abstract: An embodiment disclosed herein provides a display device including: a display panel including a driving signal line, a sensing signal line, a data line extending in a first direction and configured to apply a data signal to a pixel, and a photosensor circuit controllable by a first power signal and configured to output a sensing signal to the sensing signal line according to a driving signal received through the driving signal line; a sensing-driving circuit configured to output the driving signal supplied through the driving signal line and to detect the sensing signal from the sensing signal line; and a power supply unit configured to supply the first power signal, wherein the data line is disposed in a region where the photosensor circuit is disposed.

公开(公告)号：US20240215351A1

公开(公告)日：2024-06-27

申请号：US18386887

申请日：2023-11-03

Applicant: LG Display Co., Ltd.

Inventor： SeungHwan SHIN ,  WonHo LEE ,  YoungMin JEONG

IPC: H10K59/131

CPC classification number: H10K59/131

Abstract: A display device includes a display panel including pixels and a data driver configured to supply a data signal to the pixels. The display panel includes data lines, a high potential voltage line, and one or more reference voltage lines. Each of the pixels includes first to fourth sub pixels, and the data lines include first to fourth data lines which supply the data signals to the first to fourth sub pixels, respectively, and extend along a second direction. Further, each of the first to fourth sub pixels includes a light emitting diode and a circuit element configured to drive the light emitting diode. The first to fourth data lines are disposed between the circuit elements of two adjacent sub pixels extending along a first direction different from the second direction, among the first to fourth sub pixels.

公开(公告)号：US20230154413A1

公开(公告)日：2023-05-18

申请号：US18093243

申请日：2023-01-04

Applicant: LG Display Co., Ltd.

Inventor： YoungMin JEONG ,  SeungHwan SHIN ,  WonHo LEE ,  Wondoo KIM

IPC: G09G3/3275

CPC classification number: G09G3/3275 ,  G09G2300/0452 ,  G09G3/3233

Abstract: A display device can include a display panel having plurality of pixels, each including sub pixels having different colors; a data driver to supply a data voltage to the pixels by using a plurality of data lines; and a gate driver to supply a gate signal to the pixels using a plurality of gate lines. Also, each of the data lines is divided into a plurality of sub data lines, and each of the sub data lines is connected to sub pixels having the same color, sub pixels having the same color are disposed in a same column, and the sub pixels in the same column are connected to each of the sub data lines, and the number of sub data lines branching from one of a data line has the same number of gate lines which is connected to the plurality of pixels in a same row.

公开(公告)号：US20190204989A1

公开(公告)日：2019-07-04

申请号：US16223065

申请日：2018-12-17

Applicant: LG DISPLAY CO., LTD.

Inventor： SeungHwan SHIN ,  DaeYoung SEO ,  YoungMin JEONG ,  SoYoung LEE

IPC: G06F3/042 ,  G06F3/041

Abstract: A display device according to the present disclosure includes a sensor pixel unit including a plurality of pixels, a photo touch sensor in the sensor pixel unit, a read out line which is disposed in a second direction and transmits a touch sensing signal by the photo touch sensor, a sensor data line which is disposed in the second direction and applies a sensor data signal to the photo touch sensor, and a sensor display gate line which is disposed in a first direction different from the second direction and applies a sensor gate signal to the photo touch sensor and applies a display gate signal to the plurality of pixels.