Invention Application
US20050024380A1 Method for reducing random access memory of IC in display devices
审中-公开
用于减少显示设备中IC的随机存取存储器的方法
- Patent Title: Method for reducing random access memory of IC in display devices
- Patent Title (中): 用于减少显示设备中IC的随机存取存储器的方法
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Application No.: US10627763Application Date: 2003-07-28
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Publication No.: US20050024380A1Publication Date: 2005-02-03
- Inventor: Lin Lin , Chih-Chang Lai , Yung-Li Hsu
- Applicant: Lin Lin , Chih-Chang Lai , Yung-Li Hsu
- Main IPC: G09G5/02
- IPC: G09G5/02 ; G09G5/39 ; G09G5/393
Abstract:
A method for reducing random access memory (RAM) of an IC in display devices includes transforming a digital signal of a graphic data of three original colors (R, G, B) to digital signals of Y:Cb:Cr; taking one sample from two sample ratios of Y:Cb:Cr (4:2:0) or Y:Cb:Cr (4:2:2); storing in the RAM of a driving IC to reduce the RAM usage (with compressible data); then transforming the Y:Cb:Cr signals to three original colors (R, G, B) signal format to output image data, wherein Y represents brightness signal, and Cb and Cr represent color signals.
Information query
