公开(公告)号：US20160055799A1

公开(公告)日：2016-02-25

申请号：US14599145

申请日：2015-01-16

Applicant: Samsung Display Co., Ltd.

Inventor： Ji-Hye Eom ,  Baek-Woon Lee

IPC: G09G3/32

CPC classification number: G09G3/3225 ,  G09G2320/0626 ,  G09G2360/16

Abstract: An organic light-emitting diode (OLED) display and a method of operating the same are disclosed. In one aspect, the display includes a plurality of pixels each including a pixel circuit and produces grayscale values by adjusting an emission duty based at least in part on image data. The method comprises calculating a voltage drop of a power supply voltage at each of the pixel circuits based at least in part on the image data and extracting a luminance decrement corresponding to the voltage drop for each pixel circuit based at least in part on a voltage-luminance characteristic of the pixels. The method also comprises increasing the emission duty for each pixel based at least in part on the luminance decrement, and driving the pixels based at least in part on the increased emission duty.

Abstract translation: 公开了一种有机发光二极管（OLED）显示器及其操作方法。 在一个方面，所述显示器包括多个像素，每个像素包括像素电路，并且至少部分地基于图像数据来调整排放负荷来产生灰度值。 该方法包括至少部分地基于图像数据来计算每个像素电路处的电源电压的电压降，并且至少部分地基于电压 - 电压提取对应于每个像素电路的电压降的亮度减量， 像素的亮度特性。 该方法还包括至少部分地基于亮度减量增加每个像素的发射占空比，并且至少部分地基于增加的排放负荷来驱动像素。

公开(公告)号：US20150255019A1

公开(公告)日：2015-09-10

申请号：US14547054

申请日：2014-11-18

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hee-Sook Park ,  Ji-Hye Eom ,  Sun-Joon Hwang

IPC: G09G3/32

CPC classification number: G09G3/3225 ,  G09G2320/0223 ,  G09G2320/0233 ,  G09G2320/0285 ,  G09G2330/00 ,  G09G2360/16

Abstract: An organic light emitting display device includes: a display panel including a plurality of pixels; a controller configured to correct input image signals supplied from the outside according to an amount of voltage drop; a data driver configured to supply data signals corresponding to the corrected image signals; and a scan driver configured to supply scan signals to scan lines. The controller includes: a load factor calculator configured to calculate a load factor of a panel; a horizontal block load factor calculator configured to calculate a driving current of a plurality of horizontal blocks formed by dividing the panel according to the scan lines; a voltage drop amount calculator configured to calculate the amount of the voltage drop based on the driving current; and a lookup table generator configured to generate a voltage drop correction lookup table based on the amount of the voltage drop.

Abstract translation: 一种有机发光显示装置，包括：显示面板，包括多个像素; 控制器，被配置为根据电压降量校正从外部提供的输入图像信号; 数据驱动器，被配置为提供对应于所述校正图像信号的数据信号; 以及被配置为向扫描线提供扫描信号的扫描驱动器。 控制器包括：负载因子计算器，被配置为计算面板的负载系数; 水平块负载率计算器，被配置为计算通过根据所述扫描线划分所述面板而形成的多个水平块的驱动电流; 电压降量计算器，被配置为基于所述驱动电流来计算所述电压降的量; 以及查找表生成器，被配置为基于所述电压降的量产生电压降校正查找表。