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.

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.

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

IPC: G09G3/32 ,  G09G3/20

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。

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.

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

IPC: G09G3/32 ,  G09G3/20

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。