发明名称 NIGHT VISION SYSTEM AND CONTROL METHOD THEREOF
摘要 A second circuit (10) separately extracts a synchronization signal and brightness signal from an image signal output from a camera (2) for capturing an image of a subject. A gamma amplifier (12) produces a gamma correction signal based on a brightness ratio characteristic in which a display brightness increases as the signal level of the brightness signal increases and the display brightness is set using a display brightness correction ratio which is preferably 70 to 90% of an equi-proportional display brightness correction ratio when the signal level of the brightness signal falls in a high-brightness range. A liquid crystal display (4) receives the gamma correction signal and displays an image captured by the camera (2) with the display brightness set in accordance with the brightness ratio characteristic while synchronizing with a drive timing signal output from a first circuit (11). Thus, the difference in display brightness between different high-brightness regions or subjects is made large, whereby halation which may otherwise occur between those regions or subjects can be prevented. <IMAGE>
申请公布号 KR100607433(B1) 申请公布日期 2006.08.02
申请号 KR20030012109 申请日期 2003.02.26
申请人 发明人
分类号 H04N5/33 主分类号 H04N5/33
代理机构 代理人
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