公开(公告)号：US09959589B2

公开(公告)日：2018-05-01

申请号：US14465139

申请日：2014-08-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jong-kon Bae ,  Won-sik Kang ,  Yang-hyo Kim ,  Jae-hyuck Woo

IPC: G06T1/60 ,  G06T1/20 ,  G09G5/18 ,  G09G5/00

CPC classification number: G06T1/20 ,  G06T1/60 ,  G09G5/003 ,  G09G5/005 ,  G09G5/006 ,  G09G5/18 ,  G09G2320/103 ,  G09G2330/021 ,  G09G2360/18

Abstract: An image driving device includes a determining unit, and image processing unit, and a memory. The determining unit determines whether an input image is a moving image or a still image, and may be synchronized with an internal clock different from an external clock. The image processing unit may image-process at least one frame but less than all frames of the input image when the input image is determined to be a still image. The image processing unit may output the at least one image-processed frame as first image data, and the memory may store the first image data.

公开(公告)号：US09135853B2

公开(公告)日：2015-09-15

申请号：US13765752

申请日：2013-02-13

Applicant: Samsung Electronics Co., Ltd.

Inventor： In-suk Kim ,  Byung-hun Han ,  Jae-hyuck Woo

IPC: G09G3/32

CPC classification number: G09G3/3291 ,  G09G3/3208 ,  G09G3/3225 ,  G09G2310/027 ,  G09G2320/043 ,  G09G2320/0673 ,  G09G2330/028

Abstract: A gradation voltage generator for applying a gradation voltage according to gamma characteristics of a display panel includes a reference gamma selector that receives a maximum reference voltage, a minimum reference voltage, and a first reference voltage, and selects and outputs a maximum gamma voltage and a minimum gamma voltage from among voltages between the maximum reference voltage and the minimum reference voltage, wherein when the maximum reference voltage changes, the minimum gamma voltage is compensated by a difference the changed maximum reference voltage and the first reference voltage and a gamma curve controller that receives the maximum gamma voltage and the minimum gamma voltage, and generates and outputs a plurality of gradation voltages.

Abstract translation: 用于根据显示面板的伽马特性施加灰度电压的灰度电压发生器包括接收最大参考电压，最小参考电压和第一参考电压的参考伽马选择器，并且选择和输出最大伽马电压和 最大参考电压和最小参考电压之间的电压中的最小伽马电压，其中当最大参考电压改变时，最小伽马电压由改变的最大参考电压和第一参考电压的差值以及伽马曲线控制器 接收最大伽马电压和最小伽马电压，并产生和输出多个灰度电压。