公开(公告)号：US20130235055A1

公开(公告)日：2013-09-12

申请号：US13719459

申请日：2012-12-19

Applicant: LG DISPLAY CO., LTD.

Inventor： Jinsung KIM ,  Jincheol HONG ,  Minki KIM

IPC: G06T1/60

CPC classification number: G06T1/60 ,  G09G5/006 ,  G09G5/363 ,  G09G2320/103 ,  G09G2330/022 ,  G09G2340/02 ,  G09G2360/18 ,  G09G2370/04 ,  G09G2370/045

Abstract: A display device includes a source unit; and a sink unit connected with the source unit via an embedded display port interface for signal transmission between the source and sink units and to enable a panel self refresh (PSR) mode for reducing power, wherein, for an input still image, the source unit applies power to a frame buffer of the sink unit and transmits the still image to the sink unit, wherein the sink unit determines whether the still image can be losslessly compressed and stored in the frame buffer, outputs a first control signal if the still image can be losslessly compressed and stored in the frame buffer, and outputs a second control signal if the still image cannot be losslessly compressed and stored, and wherein the source unit activates the PSR mode for the first control signal, and deactivates the PSR mode for the second control signal.

Abstract translation: 显示装置包括源单元; 以及通过嵌入式显示端口接口与源单元连接的接收单元，用于在信号源和信宿单元之间进行信号传输，并且能够实现用于降低功率的面板自刷新（PSR）模式，其中，对于输入静止图像，源单元 对所述宿单元的帧缓冲器施加电力并将所述静止图像发送到所述宿单元，其中所述宿单元确定所述静止图像是否可被无损压缩并存储在所述帧缓冲器中，如果所述静止图像可以，则输出第一控制信号 无损压缩并存储在帧缓冲器中，并且如果静止图像不能被无损压缩和存储，则输出第二控制信号，并且其中源单元激活用于第一控制信号的PSR模式，并且停用第二控制信号的PSR模式 控制信号。

公开(公告)号：US20130235941A1

公开(公告)日：2013-09-12

申请号：US13789996

申请日：2013-03-08

Applicant: LG DISPLAY CO., LTD.

Inventor： Sungjo KOO ,  Changgone KIM ,  Jinsung KIM

IPC: H04N5/63

CPC classification number: H04N5/63 ,  G09G5/006 ,  G09G2330/022 ,  G09G2340/02 ,  G09G2360/18 ,  G09G2370/10

Abstract: A display device includes a source unit; and a sink unit connected with the source unit via an embedded display port interface for signal transmission between the source and sink units and to enable a panel self refresh (PSR) mode for reducing power consumption; a still image detector that is included in the source unit, and analyzes an input image to detect a still image; a compressor that is included in the source unit and losslessly compresses data of the still image by using a previously stored compression algorithm; and a PSR controller that is included in the source unit, compares a size of the losslessly compressed data with a size of a frame buffer of the sink unit in order to determine whether the data of the still image can be stored in the frame buffer in a losslessly compressed format without loss.

Abstract translation: 显示装置包括源单元; 以及通过嵌入式显示端口接口与源单元连接的信宿单元，用于在信号源和信宿单元之间进行信号传输，并启用面板自刷新（PSR）模式以降低功耗; 静止图像检测器，其被包括在源单元中，并且分析输入图像以检测静止图像; 包括在源单元中的压缩器，并通过使用先前存储的压缩算法对静止图像的数据进行无损压缩; 以及包括在源单元中的PSR控制器，将无损压缩数据的大小与宿单元的帧缓冲器的大小进行比较，以便确定静止图像的数据是否可以存储在帧缓冲器中 无损压缩格式，无损失。