公开(公告)号：US20170110084A1

公开(公告)日：2017-04-20

申请号：US15092083

申请日：2016-04-06

Applicant: Samsung Display Co., LTD.

Inventor： Cheol-Woo PARK ,  Seung-Hwan PARK ,  Geun-Jeong PARK

IPC: G09G5/00

CPC classification number: G09G3/3688 ,  G09G3/3696 ,  G09G2310/0251 ,  G09G2310/027 ,  G09G2310/0297 ,  G09G2330/023

Abstract: A display apparatus includes a display panel including a first data line, a timing controller which generates an external voltage selection signal, a channel control signal and a data signal, an external voltage generator which selects one of first voltage levels based on the external voltage selection signal to generate a first external voltage, and a data driver including a channel voltage generator which generates a first channel voltage, a first channel line connected to the first data line, a first switch connected between a first node receiving the first channel voltage and a second node connected to the first channel line, and a second switch connected between a third node receiving the first external voltage and a fourth node connected to the first channel line, where the data driver controls operations of the first and second switches based on the channel control signal.

公开(公告)号：US20160104408A1

公开(公告)日：2016-04-14

申请号：US14678091

申请日：2015-04-03

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Gi-Geun KIM ,  Geun-Jeong PARK ,  Nam-Gon CHOI

IPC: G09G3/20

CPC classification number: G09G3/36 ,  G09G2320/0673 ,  G09G2330/022 ,  G09G2340/0435

Abstract: A method for driving a display panel includes obtaining a first grayscale histogram based on input image data, generating a gamma curve by selectively changing an initial gamma curve based on at least one of the first grayscale histogram or a predetermined power mode, and generating output image data based on the input image data and the gamma curve. When the gamma curve is different from the initial gamma curve, the method includes changing an operating frequency of the display panel from a first frequency to a second frequency. The second frequency is lower than the first frequency. The operating frequency is changed to display an image frame corresponding to the output image data based on the second frequency.

Abstract translation: 用于驱动显示面板的方法包括基于输入图像数据获得第一灰度直方图，基于第一灰度直方图或预定功率模式中的至少一个选择性地改变初始伽马曲线，生成输出图像，生成伽马曲线 基于输入图像数据和伽马曲线的数据。 当伽马曲线与初始伽马曲线不同时，该方法包括将显示面板的工作频率从第一频率改变到第二频率。 第二频率低于第一频率。 改变工作频率以基于第二频率显示与输出图像数据相对应的图像帧。