发明名称 |
Method and apparatus for preventing keystone distortion |
摘要 |
A method and apparatus for preventing keystone distortion. A projected image is produced by projecting light through a display image rendered on a display device (e.g., and LCD panel) and onto a viewing surface at a non-perpendicular vertical and/or horizontal angle. An original image is deformed in proportion to the angle(s) to produce the display image. The original image may also be resized for storage in memory and/or to fit within a specified or usable area of the display device. An apparatus for preventing keystone distortion includes a digitizer module to receive and resize an original image (e.g., reduce it) for storage and a generator module to resize (e.g., enlarge) the image to fit the display device. Deformation of the image to prevent keystone distortion may be performed in either or both of the digitizer and generator for either or both a vertical and horizontal angle.
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申请公布号 |
US6367933(B1) |
申请公布日期 |
2002.04.09 |
申请号 |
US19990446796 |
申请日期 |
1999.12.24 |
申请人 |
MACRONIX INTERNATIONAL CO., LTD. |
发明人 |
CHEN SHUEI-LIN;CHEN CHUN-HUNG;TING HOU-CHUN;YANG MENG-SHAN;CHANG TING-YAO;KUO CHUN-HAO |
分类号 |
G03B21/00;G03B21/14;G09G3/20;G09G3/36;H04N3/233;H04N5/74;H04N9/31;H04N17/00;(IPC1-7):G03B21/00;H04N5/64;H04N3/22;H04N3/223 |
主分类号 |
G03B21/00 |
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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