公开(公告)号：US20240161705A1

公开(公告)日：2024-05-16

申请号：US18336734

申请日：2023-06-16

Applicant: LG Display Co., Ltd.

Inventor： Woo Kyu SANG ,  Moon Soo CHUNG ,  Tae Hun KIM

IPC: G09G3/3291 ,  G09G3/3266

CPC classification number: G09G3/3291 ,  G09G3/3266 ,  G09G2310/0278 ,  G09G2310/061 ,  G09G2320/0247 ,  G09G2330/021

Abstract: A light-emitting display device includes a display panel including a plurality of subpixels each including a light-emitting element, a data driver configured to supply a data voltage and a reset voltage to each of the subpixels, and a scan driver configured to output an emission signal for controlling a non-emission period and an emission period of the light-emitting element and a reset signal for controlling a reset period of each of the subpixels, wherein the scan driver outputs the emission signal a plurality of times in one frame period and outputs the reset signal a plurality of times in a non-emission period according to the emission signal, and at least one of a plurality of emission signals or a plurality of reset signals has at least one of a different delay period or a different pulse width.

公开(公告)号：US20250118268A1

公开(公告)日：2025-04-10

申请号：US18814043

申请日：2024-08-23

Applicant: LG Display Co., Ltd.

Inventor： Woo Kyu SANG ,  Moon Soo CHUNG ,  Tae Hun KIM

IPC: G09G3/3291 ,  G09G3/32 ,  G09G3/3258

Abstract: A display device including a display panel including data lines, gate lines, power lines, and sub-pixels; a gate driver to supply a gate signal to the gate lines; a data driver configured to supply a data voltage to the data lines during a refresh frame period prior to a hold frame period; and a compensation voltage generator configured to during the hold frame period, output a first compensation voltage to the data lines instead of the data voltage supplied by the data driver, and output a second compensation voltage and a third compensation voltage to the power lines connected to the sub-pixels, and during the refresh frame period, output the second compensation voltage and the third compensation voltage to the power lines without outputting the first compensation voltage.

公开(公告)号：US20230137445A1

公开(公告)日：2023-05-04

申请号：US17883229

申请日：2022-08-08

Applicant: LG Display Co., Ltd.

Inventor： Tae Hun KIM ,  Bo Gun SEO ,  Guen Sik LEE ,  Kyu Jin KIM ,  Bo Yun JUNG

IPC: H01L51/52 ,  G02B5/32 ,  G02B5/18 ,  G06V40/16 ,  H04N5/225 ,  H04N5/232 ,  G09G3/3233 ,  H01L27/32

Abstract: A display device and a mobile terminal including the display device are discussed. The display device can include a display panel including a first pixel area and a second pixel area, a cover glass disposed on a first surface of the display panel in the second pixel area, an optical module disposed under a second surface of the display panel to face the second pixel area and configured to direct infrared light towards a light transmitting part of the second pixel area, and a diffractive optical element disposed on or in at least one of the cover glass and the display panel at a position corresponding to the light transmitting part of the second pixel area. The diffractive optical element can separate the infrared light from the optical module into a plurality of dot beams.

公开(公告)号：US20230180570A1

公开(公告)日：2023-06-08

申请号：US18073331

申请日：2022-12-01

Applicant: LG Display Co., Ltd.

Inventor： Guen Sik LEE ,  Tae Hun KIM ,  Seung Tae JIN

IPC: H10K59/35 ,  H10K50/858

CPC classification number: H01L27/3218 ,  H01L27/3216 ,  H01L51/5275

Abstract: A display panel can include a plurality of subpixels disposed on a substrate and configured to display an image; a plurality of light-emitting elements disposed on the substrate and configured to emit light; and a plurality of light-receiving elements disposed on the substrate and configured to receive reflected light based on the light emitted by the plurality of light-emitting elements, in which the plurality of light-emitting elements or the plurality of light-receiving elements are disposed between the plurality of subpixels. The plurality of light-emitting elements can emit infrared laser light and the plurality of light-receiving elements are configured to generate a three-dimensional map for recognizing a face of a user based on the infrared laser light emitted by the plurality of light-emitting elements.