公开(公告)号：US20190004483A1

公开(公告)日：2019-01-03

申请号：US15710728

申请日：2017-09-20

Applicant: LG ELECTRONICS INC.

Inventor： Youngho CHUN

IPC: G05B13/02 ,  H01B9/00

Abstract: A display device is disclosed. The display device of present invention comprises a display unit providing an image; a control unit placed spaced apart from the display unit, the control unit providing the display unit with a electric power and a signal; a cable electrically connect the display unit and the control unit, the cable carrying the electric power and the signal; and a controller configured to control a property of the electric power in accordance with a length of the cable.

公开(公告)号：US20210398485A1

公开(公告)日：2021-12-23

申请号：US17284771

申请日：2019-05-20

Applicant: LG ELECTRONICS INC.

Inventor： Seungkyu PARK ,  Youngho CHUN

IPC: G09G3/3233 ,  G05F1/46 ,  G01K3/00

Abstract: The present invention relates to an organic light emitting diode display device which minimizes a temperature increase of an organic light emitting panel in consideration of an input image and an external environment, the organic light emitting diode display device comprising: an organic light emitting panel; a power supply unit for supplying a current to the organic light emitting panel; a control unit for performing an automatic current limit for controlling the maximum value of the current supplied to the organic light emitting panel to be less than or equal to the current limit value; and a temperature sensor for sensing the temperature of the organic light emitting panel, wherein the control unit may change the current limit value according to the present temperature of the organic light emitting panel.

公开(公告)号：US20220199006A1

公开(公告)日：2022-06-23

申请号：US17594153

申请日：2019-05-31

Applicant: LG ELECTRONICS INC.

Inventor： Youngho CHUN ,  Byungwoo RYU ,  Hyungil LEE ,  Joonduck JANG

IPC: G09G3/3208

Abstract: The present specification discloses a display device which, upon consecutive viewing of images of different frequencies, may improve abnormalities on a screen according to frequency change, and a method for controlling same. A digital device, according to one embodiment of the present invention, comprises: a processor; a display unit comprising a plurality of pixels; and a timing controller for temporally controlling a driving frequency such that the display device is driven, wherein the timing controller controls a light-emitting signal at a preset duty ratio in one frame interval, and when the display unit displays an image of a first input frequency and thereafter displays an image of a second input frequency, a value of a vertical blanking interval for each frame interval gradually changes.

公开(公告)号：US20210295770A1

公开(公告)日：2021-09-23

申请号：US16938874

申请日：2020-07-24

Applicant: LG ELECTRONICS INC.

Inventor： Youngho CHUN ,  Byungwoo Ryu

IPC: G09G3/3208

Abstract: The present disclosure relates to a display device for reducing an input-lag time, capable of detecting an input frequency of a video signal received through an external input interface and adjusting an output frequency of the display panel according to the detected input frequency.

公开(公告)号：US20200073622A1

公开(公告)日：2020-03-05

申请号：US16678139

申请日：2019-11-08

Applicant: LG ELECTRONICS INC.

Inventor： Youngho CHUN

IPC: G06F3/14 ,  G09G3/3208 ,  G09G5/14 ,  G09G3/3225

Abstract: An organic light emitting diode (OLED) display device includes a communication transceiver configured to connect with a terminal; a display including pixels constituted by OLEDs; and a controller configured to receive mirroring image data, which corresponds to a screen displayed on the terminal, through the communication transceiver, control the display to display a mirroring image on an area of the display based on the received mirroring image data, and adjust brightness of the displayed mirroring image based on an average picture level (APL) of the displayed mirroring image.

公开(公告)号：US20190156726A1

公开(公告)日：2019-05-23

申请号：US16173813

申请日：2018-10-29

Applicant: LG ELECTRONICS INC.

Inventor： Youngho CHUN

IPC: G09G3/20 ,  G09G3/3233 ,  H01L27/32 ,  G09G3/3291

Abstract: An organic light emitting diode (OLED) display device including a display unit including pixels constituted by OLEDs; and a controller configured to display an image through the display unit, acquire an average picture level (APL) of the image, set a movement path and a movement period of the image on the display based on the acquired APL, and move the image on the display unit based on the set movement path and the movement period.

公开(公告)号：US20230410737A1

公开(公告)日：2023-12-21

申请号：US17815124

申请日：2022-07-26

Applicant: LG ELECTRONICS INC.

Inventor： Youngho CHUN

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2320/0257 ,  G09G2320/0626 ,  G09G2320/0686 ,  G09G2300/0842

Abstract: A display device comprises a display unit configured to display a still image, and a controller configured to turn on a luminance control function for lowering luminance of the still image to default peak luminance when there is no change in the still image for a predetermined time period and to turn off the luminance control function when a preset pattern is detected in a state in which the luminance control function is turned on.

公开(公告)号：US20220321973A1

公开(公告)日：2022-10-06

申请号：US17597237

申请日：2019-07-02

Applicant: LG ELECTRONICS INC.

Inventor： Youngho CHUN ,  Hyungil LEE

IPC: H04N21/485 ,  G09G5/10

Abstract: The present invention relates to a display device and a control method therefor, and involves the concept of controlling a display to reduce luminance from a default luminance to a first luminance for a first reduction time when brightness of a fixed area is maintained for a first predetermined time or more, and controlling the display to increase the luminance from the first luminance to the default luminance, when a set-top box receives, from an external device within a second predetermined time, a first signal for changing a screen from a first screen to a second screen.

公开(公告)号：US20220262305A1

公开(公告)日：2022-08-18

申请号：US17711404

申请日：2022-04-01

Applicant: LG ELECTRONICS INC.

Inventor： Youngho CHUN

IPC: G09G3/3208

Abstract: Disclosed herein is a display device for preventing a luminance floatation phenomenon in a low grayscale region. The display device includes a display panel, an external input interface configured to receive an image signal from an external device, and a controller configured to adjust a gamma value when an input frequency of the image signal is less than an output frequency of the display panel and a variable refresh rate (VRR) function for changing the output frequency according to the input frequency is activated and to output the image signal to the display panel based on the adjusted gamma value.

公开(公告)号：US20210366375A1

公开(公告)日：2021-11-25

申请号：US17286796

申请日：2019-03-29

Applicant: LG ELECTRONICS INC.

Inventor： Youngho CHUN ,  Seungkyu PARK

IPC: G09G3/3208

Abstract: The present disclosure relates to an organic light emitting diode display device capable of changing a frame size. The organic light emitting diode display device includes: a display including a panel, a frame memory configured to store image data in units of frames, and a timing controller configured to control the panel to display an image based on the image data stored in the frame memory; a memory configured to store information of the panel; and a controller configured to, when operating in a preset image mode, change a frame size, which is a size of the image data stored in the frame memory, based on the information of the panel.