公开(公告)号：US11924519B2

公开(公告)日：2024-03-05

申请号：US17597237

申请日：2019-07-02

申请人： LG ELECTRONICS INC.

发明人： Youngho Chun ,  Hyungil Lee

IPC分类号： H04N21/40 ,  G09G5/10 ,  H04N5/445 ,  H04N21/485

CPC分类号： H04N21/4854 ,  G09G5/10 ,  G09G2320/0626

摘要： 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：US11961465B2

公开(公告)日：2024-04-16

申请号：US17286796

申请日：2019-03-29

申请人： LG ELECTRONICS INC.

发明人： Youngho Chun ,  Seungkyu Park

IPC分类号： G09G3/32 ,  G09G3/3208

CPC分类号： G09G3/3208 ,  G09G2310/08 ,  G09G2320/0626 ,  G09G2360/12

摘要： 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.

公开(公告)号：US11854475B2

公开(公告)日：2023-12-26

申请号：US17711404

申请日：2022-04-01

申请人： LG ELECTRONICS INC.

发明人： Youngho Chun

IPC分类号： G09G3/36 ,  G09G3/20 ,  G09G3/34 ,  H04N5/14 ,  G09G3/3208

CPC分类号： G09G3/3208 ,  G09G2320/0233 ,  G09G2320/0238 ,  G09G2320/0276 ,  G09G2320/0673 ,  G09G2320/0686 ,  G09G2320/10

摘要： 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：US11620944B2

公开(公告)日：2023-04-04

申请号：US17284771

申请日：2019-05-20

申请人： LG ELECTRONICS INC.

发明人： Seungkyu Park ,  Youngho Chun

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

摘要： 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：US10915074B2

公开(公告)日：2021-02-09

申请号：US15710728

申请日：2017-09-20

申请人： LG ELECTRONICS INC.

发明人： Youngho Chun

IPC分类号： G09G5/00 ,  G05B13/02 ,  H01B9/00 ,  H01B7/08

摘要： 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：US10706763B2

公开(公告)日：2020-07-07

申请号：US16173813

申请日：2018-10-29

申请人： LG ELECTRONICS INC.

发明人： Youngho Chun

IPC分类号： G09G3/30 ,  G09G3/20 ,  G09G3/3233 ,  H01L27/32 ,  G09G3/3291 ,  G09G5/00 ,  G09G3/3258 ,  G09G3/00

摘要： 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：US12073779B2

公开(公告)日：2024-08-27

申请号：US17594153

申请日：2019-05-31

申请人： LG ELECTRONICS INC.

发明人： Youngho Chun ,  Byungwoo Ryu ,  Hyungil Lee ,  Joonduk Jang

IPC分类号： G09G3/3208

CPC分类号： G09G3/3208 ,  G09G2310/061 ,  G09G2310/08 ,  G09G2320/0252

摘要： 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：US11322077B1

公开(公告)日：2022-05-03

申请号：US17206848

申请日：2021-03-19

申请人： LG ELECTRONICS INC.

发明人： Youngho Chun

IPC分类号： G09G3/34 ,  G09G3/36 ,  G09G3/20 ,  G09G3/32 ,  G09G3/3208

摘要： 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：US10908866B2

公开(公告)日：2021-02-02

申请号：US16678139

申请日：2019-11-08

申请人： LG ELECTRONICS INC.

发明人： Youngho Chun

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

摘要： 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：US10509618B2

公开(公告)日：2019-12-17

申请号：US16058652

申请日：2018-08-08

申请人： LG ELECTRONICS INC.

发明人： Youngho Chun

IPC分类号： G06F3/14 ,  G09G3/32 ,  G09G3/3208

摘要： An OLED display device includes a communication unit to connect with a terminal, a display unit including a pixel including an OLED, and a controller to receive mirroring image data, which corresponds to a screen displayed on the terminal, through the communication unit, to control the display unit to display a mirroring image on an area of the display unit based on the received mirroring image data, and to control the display unit not to display the displayed mirroring image on the area based on an average picture level (APL) of the displayed mirroring image.