发明名称 Method and apparatus for compensating horizontal and vertical alignment errors in display systems
摘要 The present invention provides a method of ameliorating the effects of misalignment between modulator arrays, and a system using the same. The ability reduce the effects of misalignment allows multiple, smaller, more cost effective arrays to be used instead of one large array. This can reduce the manufacturing costs of the array, especially arrays that are produced using semiconductor manufacturing processes such as the digital micromirror device. To avoid visual artifacts caused by the misalignment of two or more modulator arrays 1702, 1704, the individual arrays 1702, 1704 are optically overlapped and a portion of the image 1706 is generated by both arrays 1702, 1704. A breakpoint is chosen between two pixels in the overlapped region 1706 at which to abut the images from each of the modulator arrays 1702, 1704. The breakpoint is changed each row of pixels to minimize the detectability of any visual artifact caused by misalignment between the modulator arrays 1702, 1704.
申请公布号 US5630027(A) 申请公布日期 1997.05.13
申请号 US19940364916 申请日期 1994.12.28
申请人 TEXAS INSTRUMENTS INCORPORATED 发明人 VENKATESWAR, VADLAMANNATI;THAKUR, VIVEK K.
分类号 B41J2/44;B41J2/45;B41J2/455;G02B26/08;G06K15/10;G06K15/12;H04N1/40;(IPC1-7):B41B15/00 主分类号 B41J2/44
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