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公开(公告)号：US20190206308A1
公开(公告)日：2019-07-04
申请号：US16233799
申请日：2018-12-27
Applicant: LG Display Co., Ltd.
Inventor： Seungjin YOO , JangHwan KIM , Dongwon PARK , JoonHee LEE
Abstract: A two-panel display device includes first source driver ICs arranged at one side of a first display area, supplying a first data voltage, second source driver ICs arranged at one side of a second display area arranged to adjoin the first display area, supplying a second data voltage, and at least one or more read out ICs arranged between the first display area and the second display area, being supplied with sensing voltages sensed in the first and second display areas, wherein the first source driver ICs are arranged in a direction opposite to the read out ICs with the first display area interposed therebetween, and the second source driver ICs are arranged in a direction opposite to the read out ICs with the second display area interposed therebetween.
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公开(公告)号：US20180182297A1
公开(公告)日：2018-06-28
申请号：US15841766
申请日：2017-12-14
Applicant: LG Display Co., Ltd.
Inventor： Joonhee LEE , Janghwan KIM , Dongwon PARK , Jongmin PARK , Yongchul KWON
IPC: G09G3/3258 , H01L27/32
Abstract: An organic light-emitting display device and a method of driving the same are disclosed. The organic light-emitting display device includes a display panel including sub-pixels, a power supply configured to output a voltage for driving the sub-pixels, a selective driver configured to generate a control signal to selectively drive a drive transistor of the sub-pixels between first and second driving schemes, wherein the drive transistor is driven in a saturation region in the first driving scheme, and is driven in a linear region in the second driving scheme, and a gamma change driver configured to change a gamma based on the driving scheme selected by the selective driver.
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公开(公告)号：US20220208043A1
公开(公告)日：2022-06-30
申请号：US17542019
申请日：2021-12-03
Applicant: LG Display Co., Ltd.
Inventor： Dongwon PARK , YongChul KWON , JungJae KIM
Abstract: A display device can include a display panel including a plurality of subpixels; a feedback part; and a power source configured to output a first power voltage to the feedback part and the display panel, in which the feedback part is configured to output a virtual feedback voltage to the power source, the virtual feedback voltage being based on the first power, and the power source is further configured to adjust a magnitude of the first power voltage to generate an adjusted first power voltage based on the virtual feedback voltage.
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公开(公告)号：US20170193913A1
公开(公告)日：2017-07-06
申请号：US15392721
申请日：2016-12-28
Applicant: LG DISPLAY CO., LTD.
Inventor： Joonhee LEE , Heejung HONG , Dongwon PARK , Jongmin PARK , Yongchul KWON
IPC: G09G3/3258
CPC classification number: G09G3/3258 , G09G3/2025 , G09G3/3233 , G09G2300/04 , G09G2310/08 , G09G2320/0223 , G09G2320/043
Abstract: Disclosed is an organic light emitting diode (OLED) display that includes a display panel including a plurality of gate lines and a plurality of data lines crossing each other to define a plurality of pixels, each pixel including a driving transistor, a switching transistor, an OLED and a storage capacitor; a timing controller that receives pixel data of an input image and timing signals and time-divides a period of one frame into at least a driving sub-frame and a compensation sub-frame based on one or more of the timing signals; and a display panel driver that converts the pixel data into data voltages and supplies the data voltages to the plurality of data lines during the driving sub-frame, and that adjusts compensation gray levels of the plurality of pixels or compensation duties of the plurality of pixels based on a luminance map, which contains information on a luminance deviation for each pixel with respect to a same gray level, during the compensation sub-frame.
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公开(公告)号：US20160189620A1
公开(公告)日：2016-06-30
申请号：US14966169
申请日：2015-12-11
Applicant: LG Display Co., Ltd.
Inventor： Dongwon PARK , Yongchul KWON
CPC classification number: G09G3/2022 , G09G3/3225 , G09G3/3258 , G09G2300/0861 , G09G2310/08 , G09G2320/0233 , G09G2320/0266 , G09G2320/029 , G09G2320/045 , G09G2320/0693 , G09G2330/021 , G09G2330/025 , G09G2360/16
Abstract: A display device is provided for dividing one frame period into a plurality of subframe periods, separating data of an input image on a per bit basis, mapping the data of the input image to the subframe periods, and representing gray levels of the input image. The display device includes a measurement unit configured to measure a current of a pixel; a luminance error calculation unit configured to calculate a rush current of the pixel emitting light at the measured current value, and to calculate a luminance error of the pixel based on the rush current; and a luminance error compensation unit configured to reduce an emission time of one of the subframe periods or remap the subframe periods to compensate for the luminance error.
Abstract translation: 提供一种显示装置，用于将一个帧周期分成多个子帧周期，以每比特为单位分离输入图像的数据，将输入图像的数据映射到子帧周期，并且表示输入图像的灰度级。 显示装置包括：测量单元，被配置为测量像素的电流; 亮度误差计算单元，被配置为计算在所测量的电流值下的像素发射光的冲击电流，并且基于所述冲击电流来计算像素的亮度误差; 以及亮度误差补偿单元，被配置为减少子帧周期中的一个的发射时间或重新映射子帧周期以补偿亮度误差。
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Patent Agency Ranking
公开(公告)号：US20190206332A1
公开(公告)日：2019-07-04
申请号：US16219385
申请日：2018-12-13
Applicant: LG Display Co., Ltd.
Inventor： Dongwon PARK
IPC: G09G3/3275 , G09G3/36 , G06F3/01 , G09G3/20
Abstract: The present disclosure relates to a display device for driving virtual reality with low latency and compensating the reduced brightness. According to the present disclosure, a display device is provided, and the display device includes a timing controller for receiving a data signal and a timing signal from a host system, a data driving unit for receiving a drive signal from the timing controller, a gate driving unit for receiving a drive signal from the timing controller, a display panel having a plurality of sub-pixels and for displaying a video based on the signals received from the data driving unit and the gate driving unit, and a power supply unit for supplying power to the data driving unit, the gate driving unit, and the display panel; and the timing controller receives an address reset signal from the host system.
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公开(公告)号：US20170193900A1
公开(公告)日：2017-07-06
申请号：US15393662
申请日：2016-12-29
Applicant: LG Display Co., Ltd.
Inventor： Yongchul KWON , Dongwon PARK , Jongmin PARK , Joonhee LEE
IPC: G09G3/3233 , G09G3/3275
CPC classification number: G09G3/3233 , G09G3/3266 , G09G3/3275 , G09G2310/0289 , G09G2310/08 , G09G2320/043 , G09G2320/045 , G09G2320/0673 , G09G2320/103 , G09G2330/021 , G09G2330/023 , G09G2330/12 , G09G2370/047
Abstract: The present invention provides an organic light-emitting display device including a display panel, a power supply, a selective driver and a gamma change driver. The display panel includes sub-pixels. The power supply is configured to output a drive voltage for driving the sub-pixels. The selective driver is configured to generate a control signal to enable selective drive between first and second driving schemes for a drive transistor in each sub-pixel, wherein the first and second schemes employ saturation and linear regions of the drive voltage curve respectively. The gamma change driver is configured to change a gamma based on the driving scheme selected by the selective driver.
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公开(公告)号：US20160189605A1
公开(公告)日：2016-06-30
申请号：US14880898
申请日：2015-10-12
Applicant: LG DISPLAY CO., LTD.
Inventor： Younghwan AHN , Dongwon PARK , Joonhee LEE , Yongchul KWON
CPC classification number: G09G3/3225 , G09G3/2022 , G09G3/3233 , G09G3/3266 , G09G2300/0426 , G09G2300/0819 , G09G2300/0842 , G09G2310/08 , G09G2320/0223 , G09G2320/0233 , G09G2330/021 , G09G2330/027 , G09G2330/028
Abstract: An organic light emitting diode display and a method for driving the same are disclosed. The organic light emitting diode display includes a display panel including a plurality of pixels, a display panel driver configured to drive signal lines of the display panel, and a timing controller configured to divide one frame into a plurality of subframes, convert data of an input image into a bit pattern, map the bit pattern to the plurality of subframes, control an operation of the display panel driver, and adjust a writing speed for writing data and/or an erase speed for turning off pixels of the plurality of pixels during at least one compensation subframe of the plurality of subframes such that the write speed and the erase speed are different from each other.
Abstract translation: 公开了一种有机发光二极管显示器及其驱动方法。 有机发光二极管显示器包括：包括多个像素的显示面板;被配置为驱动显示面板的信号线的显示面板驱动器;以及定时控制器，被配置为将一帧分割为多个子帧， 将图像映射成位模式，将位模式映射到多个子帧，控制显示面板驱动器的操作，并且调整用于写入数据的写入速度和/或用于在at期间关闭多个像素的像素的擦除速度 多个子帧的至少一个补偿子帧，使得写入速度和擦除速度彼此不同。
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公开(公告)号：US20210201784A1
公开(公告)日：2021-07-01
申请号：US17127337
申请日：2020-12-18
Applicant: LG Display Co., Ltd.
Inventor： Jung-Jae KIM , Yong-Chul KWON , Soon-Dong CHO , Sang-Uk LEE , Dongwon PARK
IPC: G09G3/3233 , G09G3/3266 , G09G3/20
Abstract: A light emitting display device includes a display panel, a power supply configured to supply a first potential voltage and a second potential voltage to the display panel, and a switch circuit unit configured to sense the first potential voltage applied to the display panel and to feedback the first potential voltage to the power supply, wherein the power supply compensates for the first potential voltage based on the first potential voltage fed back from the switch circuit unit and to output the compensated first potential voltage.
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公开(公告)号：US20210174727A1
公开(公告)日：2021-06-10
申请号：US17108545
申请日：2020-12-01
Applicant: LG Display Co., Ltd.
Inventor： Joonhee LEE , Dongwon PARK
IPC: G09G3/20 , G09G3/3291
Abstract: A display device according to an embodiment is configured to include a host system subsampling and transmitting data of a first color among a plurality of colors of input image data; a timing controller interpolating the data of the subsampled first color in data received from the host system to reconstruct the image data and outputting the reconstructed image data; a display panel having a plurality of pixels connected to a gate line and a data line; and a driving circuit driving the gate line and the data line under a control of the timing controller to supply data voltages corresponding to the reconstructed image data to the plurality of pixels.
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