发明名称 |
CIRCUIT ARRANGEMENT FOR DISPLAY BOARDS HAVING LUMINOUS ELEMENTS ARRANGED ON A MATRIX |
摘要 |
<p>Circuit arrangement for the shaded(gray-scale) displaying of images on display boards having individual luminous elements arranged in a matrix, wherein switching circuits of the luminous elements are connected to row and column bars, and each bar is coupled to a selecting circuit either directly or through a store element. Each switching circuit includes an analog memory, a comparator with a constant threshold level, and a power switch. The memory is preferably a capacitor which is connected - over a switching element - between the respective row bar and column bar. A function generator supplying a monotonously varying periodic signal is connected to the bars that are directly connected to the capacitors whereas a video-signal transmitter is connected to the bars that are linked to the switching elements.</p> |
申请公布号 |
CA1085046(A) |
申请公布日期 |
1980.09.02 |
申请号 |
CA19770279321 |
申请日期 |
1977.05.27 |
申请人 |
VILLAMOS BERENDEZES ES KE"ULEK "UVEK |
发明人 |
MAGOS, GABOR;SZALAI, JOZSEF |
分类号 |
H04N5/66;G09F13/28;G09G3/00;H03K17/735;H04N3/12;(IPC1-7):04N3/12;05B39/09 |
主分类号 |
H04N5/66 |
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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