公开(公告)号：US20220188057A1

公开(公告)日：2022-06-16

申请号：US17522659

申请日：2021-11-09

Applicant: LG Display Co., Ltd.

Inventor： Dae Hyeon Park ,  Tae Gung Kim ,  Sun Cheol Noh

IPC: G06F3/14 ,  G09G3/3208

Abstract: An infinitely expandable display apparatus includes a set board outputting image data, a plurality of display devices connected to one another through an interface circuit based on a cascading scheme to sequentially receive the image data, and an output deviation compensation circuit generating a deviation compensation signal for allowing the image data to be simultaneously output from the plurality of display devices, and transferring the deviation compensation signal to the plurality of display devices.

公开(公告)号：US12283225B2

公开(公告)日：2025-04-22

申请号：US18209189

申请日：2023-06-13

Applicant: LG Display Co., Ltd.

Inventor： Kyu Hwan Joo ,  Tae Gung Kim ,  Dae Sung Park

IPC: G09G3/32 ,  G09G3/3291

Abstract: A display apparatus comprises: a display panel including pixels that emit light, wherein an amount of emitted light is controlled based on a data voltage, and an emission time of the pixels is controlled based on a duty ratio of an emission control signal applied to the pixels; a timing controller configured to control the emission control signal in an active period of one frame and in a blank period of the one frame, where the data voltage is supplied to the pixels during the active period of the one frame and the data voltage is maintained during the blank period of the one frame; and a gate driver configured to apply to the pixels the emission control signal having a first duty ratio during the active period and the emission control signal having a second duty ratio that is different from the first duty ratio during the blank period.

公开(公告)号：US20240233615A1

公开(公告)日：2024-07-11

申请号：US18209189

申请日：2023-06-13

Applicant: LG Display Co., Ltd.

Inventor： Kyu Hwan Joo ,  Tae Gung Kim ,  Dae Sung Park

IPC: G09G3/32 ,  G09G3/3291

CPC classification number: G09G3/32 ,  G09G3/3291 ,  G09G2310/061 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/0247

Abstract: A display apparatus comprises: a display panel including pixels that emit light, wherein an amount of emitted light is controlled based on a data voltage, and an emission time of the pixels is controlled based on a duty ratio of an emission control signal applied to the pixels; a timing controller configured to control the emission control signal in an active period of one frame and in a blank period of the one frame, where the data voltage is supplied to the pixels during the active period of the one frame and the data voltage is maintained during the blank period of the one frame; and a gate driver configured to apply to the pixels the emission control signal having a first duty ratio during the active period and the emission control signal having a second duty ratio that is different from the first duty ratio during the blank period.

公开(公告)号：US20240203333A1

公开(公告)日：2024-06-20

申请号：US18514342

申请日：2023-11-20

Applicant: LG Display Co., Ltd.

Inventor： Min Hoi Kim ,  Tae Gung Kim

IPC: G09G3/3208

CPC classification number: G09G3/3208 ,  G09G2300/0426 ,  G09G2310/0286 ,  G09G2310/08

Abstract: A display apparatus includes a display panel configured to display an image, a gate driver configured to supply gate signals to the display panel, a data driver connected with the display panel, and a timing controller configured to control the gate driver, wherein the timing controller controls an output type of the gate driver so that one gate signal of the gate signals is applied per one gate line or per at least two gate lines, based on an image applied from an external device.

公开(公告)号：US11935501B2

公开(公告)日：2024-03-19

申请号：US17976768

申请日：2022-10-29

Applicant: LG DISPLAY CO., LTD.

Inventor： Ho Bum Lee ,  Dae Sung Park ,  Tae Gung Kim

IPC: G06F3/14 ,  G09G5/00

CPC classification number: G09G5/003 ,  G06F3/1446 ,  G09G2370/045

Abstract: A tiling display apparatus includes a set board configured to generate a control command signal and a plurality of display modules connected to one another through a first interface circuit based on a serial communication scheme, for executing a target operation corresponding to the control command signal, and the first interface circuit is implemented with a bidirectional serial interface having a feedback loop type between adjacent display modules of the plurality of display modules.

公开(公告)号：US20230236785A1

公开(公告)日：2023-07-27

申请号：US17977741

申请日：2022-10-31

Applicant: LG Display Co., Ltd.

Inventor： Kyu Hwan Joo ,  Tae Gung Kim

IPC: G06F3/14 ,  G09G3/20 ,  G09G3/32

CPC classification number: G06F3/1446 ,  G09G3/32 ,  G09G3/2096 ,  G09G2300/026 ,  G09G2360/04 ,  G09G2370/042

Abstract: A tiling display apparatus includes a plurality of display modules connected to one another through an interface circuit based on a serial communication scheme to divide input image data configuring one screen to display a plurality of module images and a set board checking a module identification number based on a connection order of the plurality of display modules and setting image re-matching control information and a module image coordinate value corresponding to the module image for each of the plurality of display modules, on the basis of a placement direction of a control printed circuit board (PCB) individually included in each display module.

公开(公告)号：US11495167B2

公开(公告)日：2022-11-08

申请号：US17519184

申请日：2021-11-04

Applicant: LG Display Co., Ltd.

Inventor： Jun Woo Yun ,  Tae Gung Kim

IPC: G09G3/20 ,  G09G3/3233 ,  G09G3/3275

Abstract: An infinitely expandable display device according to an embodiment of the present disclosure includes a plurality of display units including a plurality of data drivers connected through a bidirectional interface circuit, and a timing controller commonly connected to the display units through the bidirectional interface circuit. Each of the data drivers includes a first reception circuit configured to receive a first interface signal in a first direction, a first transmission circuit configured to transmit the first interface signal in the first direction, a second reception circuit configured to receive a second interface signal in a second direction opposite the first direction, a second transmission circuit configured to transmit the second interface signal in the second direction, and a switch circuit SWP connected to the first transmission circuit, the second transmission circuit, and the second reception circuit.

公开(公告)号：US20220188058A1

公开(公告)日：2022-06-16

申请号：US17523829

申请日：2021-11-10

Applicant: LG Display Co., Ltd.

Inventor： Tae Gung Kim ,  Dae Hyeon Park ,  Dae Sung Park

IPC: G06F3/14 ,  G06F3/147 ,  H04W4/80

Abstract: An infinitely expandable display apparatus and a driving method thereof are disclosed. An infinitely expandable display apparatus includes a cabinet including a plurality of display units each having an application specific integrated circuit (ASIC) embedded therein, a set board generating a driving command signal needed for driving of the cabinet, and a set interface circuit connecting the set board to the cabinet. The plurality of display units are connected to one another through a unidirectional interface circuit, and at least one of the plurality of display units transfers the driving command signal and an execution result signal based thereon to a neighbor display unit on the basis of a cascading scheme.

公开(公告)号：US10217418B2

公开(公告)日：2019-02-26

申请号：US14972398

申请日：2015-12-17

Applicant: LG Display Co., Ltd.

Inventor： Tae Gung Kim ,  Jung Hyeon Kim

IPC: G09G3/34 ,  G09G3/20 ,  G09G3/3233 ,  G09G3/3225

Abstract: An organic light emitting diode display device is disclosed which adjusts brightnesses and color temperatures of RGBW data signals and matches the brightnesses of organic light emitting diodes and the color temperature of a white organic light emitting diode with the target brightness value and the target color temperature of a white pixel. As such, an overcompensation and the reduction of a lifespan can be prevented. Also, relatively high brightness and color temperature can be maintained.

公开(公告)号：US09953568B2

公开(公告)日：2018-04-24

申请号：US14710327

申请日：2015-05-12

Applicant: LG Display Co., Ltd.

Inventor： Sang Ho Yu ,  Tae Gung Kim ,  Jong Min Lee ,  Myung Gi Lim ,  Hye Mi Oh ,  Hun Ki Shin ,  Jin han Yoon

IPC: G09G3/3233 ,  G09G3/3241 ,  H01L27/32

CPC classification number: G09G3/3233 ,  G09G3/3241 ,  G09G2300/0852 ,  G09G2320/0233 ,  G09G2320/045 ,  H01L27/32

Abstract: An organic light emitting diode display device is disclosed which includes: a scan switch controlled by a scan pulse on a gate line and connected between a data line and a first node; a driving switch which includes a gate electrode connected to the first node, a source electrode connected to a second node, and a drain electrode connected to a first driving voltage line; a sensing switch controlled by a sensing control signal and connected between the second node and a third node on a sensing line; and an organic light emitting diode connected between the second node and a second driving voltage line.