公开(公告)号：US20180151121A1

公开(公告)日：2018-05-31

申请号：US15816553

申请日：2017-11-17

Applicant: LG DISPLAY CO., LTD.

Inventor： Myunggi Lim ,  Kyoungdon Woo ,  Jaeyoon Bae

IPC: G09G3/3258

CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2310/0262 ,  G09G2320/0247 ,  G09G2320/0295

Abstract: An organic light-emitting display includes a driving transistor that drives an organic light-emitting diode, a first transistor connected between a data line supplying a data voltage and a gate electrode of the driving transistor, a second transistor connected between a reference voltage input line and a source electrode of the driving transistor, and a third transistor that directly charges the gate electrode of the driving transistor with a reference voltage supplied from the reference voltage input line, in response to a black data control signal, wherein the third transistor directly receives the reference voltage by being turned on for a certain period of time after the gate electrode of the driving transistor is programmed with the data voltage in one frame before receiving a data voltage in the next frame.

公开(公告)号：US20240221633A1

公开(公告)日：2024-07-04

申请号：US18520044

申请日：2023-11-27

Applicant: LG Display Co., Ltd.

Inventor： Jaeyoon Bae ,  SangHo Yu ,  Jaeik Yoo

IPC: G09G3/3208

CPC classification number: G09G3/3208 ,  G09G2300/0852 ,  G09G2310/0213 ,  G09G2310/0251 ,  G09G2310/08 ,  G09G2330/10

Abstract: A display device and a driving method thereof are disclosed. In a defective subpixel detection time for detecting a defective subpixel, a gate driving circuit may supply turn-on signals to a first-first gate line group included in a plurality of gate lines and supply turn-off signals to a first-second gate line group other than the first-first gate line group among the plurality of gate lines, thereby quickly detecting a defective subpixel.

公开(公告)号：US10311788B2

公开(公告)日：2019-06-04

申请号：US15816553

申请日：2017-11-17

Applicant: LG DISPLAY CO., LTD.

Inventor： Myunggi Lim ,  Kyoungdon Woo ,  Jaeyoon Bae

IPC: G09G3/36 ,  G09G3/3233

Abstract: An organic light-emitting display includes a driving transistor that drives an organic light-emitting diode, a first transistor connected between a data line supplying a data voltage and a gate electrode of the driving transistor, a second transistor connected between a reference voltage input line and a source electrode of the driving transistor, and a third transistor that directly charges the gate electrode of the driving transistor with a reference voltage supplied from the reference voltage input line, in response to a black data control signal, wherein the third transistor directly receives the reference voltage by being turned on for a certain period of time after the gate electrode of the driving transistor is programmed with the data voltage in one frame before receiving a data voltage in the next frame.

公开(公告)号：US10274734B2

公开(公告)日：2019-04-30

申请号：US15679777

申请日：2017-08-17

Applicant: LG Display Co., Ltd.

Inventor： Kyoungdon Woo ,  Jaeyoon Bae

IPC: G09G3/00 ,  G02B27/00 ,  G02B27/01

Abstract: A personal immersive display device and a driving method thereof are disclosed. The display device comprises a first display panel to which first content data is provided; a second display panel to which second content data is provided; a camera that receives data associated with positions of a user's left pupil and right pupil; and a data processor that processes the data associated with the position of the user's left pupil and right pupil to determine a right gaze point and a left gaze point, detects a first gaze area on the first display panel and a second gaze area on the second display panel based on the right gaze point and left gaze point, wherein the data processor reduces resolution or brightness of the first and second content data provided to areas outside the first gaze area and second gaze area.

公开(公告)号：US20180174516A1

公开(公告)日：2018-06-21

申请号：US15835774

申请日：2017-12-08

Applicant: LG Display Co., Ltd.

Inventor： Hyuckjun Kim ,  Bumsik Kim ,  Jaeyoon Bae ,  Seungtae Kim ,  Kyoungdon Woo

IPC: G09G3/3233 ,  H01L51/52 ,  H01L27/32

CPC classification number: G09G3/3233 ,  G09G3/2081 ,  G09G2310/0205 ,  G09G2310/0264 ,  G09G2310/04 ,  G09G2320/103 ,  G09G2360/16 ,  H01L27/3276 ,  H01L51/5203

Abstract: A display device includes a display panel on which a plurality of pixels connected to data lines, reference lines, and gate lines are arranged, each pixel having an organic light emitting diode (OLED) and a driving thin film transistor (TFT); a data drive circuit to supply a data voltage to the data lines and a reference voltage to the reference lines; a gate drive circuit to generate a scan signal and a sensing signal and to supply the scan signal and the sensing signal to the gate lines, the scan signal being synchronized with the data voltage and the sensing signal being synchronized with the reference voltage; and a timing controller to divide one frame into a programming time, an emission time, and a non-emission time, and to control an emission duty by variably controlling the programming time based on an analysis of input image data.

公开(公告)号：US11107420B2

公开(公告)日：2021-08-31

申请号：US15814174

申请日：2017-11-15

Applicant: LG Display Co., Ltd.

Inventor： Seokhyun Hong ,  Jaeyoon Bae ,  OSung Do ,  Taeyoung Lee

IPC: G09G3/32 ,  G09G3/3291 ,  G09G3/3275 ,  G09G3/3233 ,  G09G3/3258 ,  G09G3/00 ,  G09G3/36

Abstract: The display device according to the present disclosure may comprise a display panel equipped with a plurality of pixels connected to data lines and sensing lines; a source drive IC configured to provide a data voltage to a pixel through the sensing line and equipped with a sensing block obtaining sensing data related to driving characteristics of the pixel using a signal input through the sensing line; a switch configured to control a connection via the sensing line between the pixel and the sensing block; and a power source configured to provide a test voltage or a test current to the sensing block, and the source drive IC may obtain calibration data for the sensing block by using the test voltage or the test current in a state that the switch disconnects the pixel and the sensing block.

公开(公告)号：US10467960B2

公开(公告)日：2019-11-05

申请号：US15858917

申请日：2017-12-29

Applicant: LG Display Co., Ltd.

Inventor： Osung Do ,  Kyoungdon Woo ,  Hyuckjun Kim ,  Jaeyoon Bae

IPC: G09G3/34 ,  G09G3/3233

Abstract: The present disclosure relates to an electroluminescent display device and a driving method of the same. The electroluminescent display device comprises a display panel, including a plurality of data lines, a plurality of sensing lines, a plurality of gate lines, and pixels which are arranged in matrix at each intersection between those lines to form a plurality of display lines; a sensing circuit, for sensing a pixel current in the pixels, integrating the pixel current to obtain a sensing voltage, and generating a sensing data based on the sensing voltage during a sensing operation period; and a compensation unit for calculating a compensation value for electrical characteristics of the pixels based on the sensing data.