发明名称 |
METHOD FOR GRAYSCALE RENDITION IN AN AM-OLED |
摘要 |
<p>The present invention relates to a grayscale rendition method in an active matrix OLED (Organic Light Emitting Display) where each cell of the display is controlled via an association of several Thin-Film Transistors (TFTs). In order to improve the grayscale rendition in an AM-OLED when displaying low grayscale levels and/or when displaying moving pictures, it is proposed to split each frame into a plurality of subframes wherein the amplitude of the data signal applied to a cell of the AM-OLED can be adapted to conform to the visual response of a CRT display. According to the invention, the video frame used for displaying an image is divided into N consecutive subframes, with N>=2, and the data signal applied to the cell comprises N independent elementary data signals, each of said elementary data signals being applied to the cell during a subframe. The grayscale level displayed by the cell during the video frame is depending on the amplitude of the elementary data signals and the duration of the subframes.</p> |
申请公布号 |
WO2005104074(A1) |
申请公布日期 |
2005.11.03 |
申请号 |
WO2005EP51713 |
申请日期 |
2005.04.19 |
申请人 |
THOMSON LICENSING SA;WEITBRUCH, SEBASTIEN;CORREA, CARLOS;LE ROY, PHILIPPE |
发明人 |
WEITBRUCH, SEBASTIEN;CORREA, CARLOS;LE ROY, PHILIPPE |
分类号 |
G09G3/20;G09G3/32;(IPC1-7):G09G3/32 |
主分类号 |
G09G3/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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