| 摘要 |
PROBLEM TO BE SOLVED: To provide a display device capable of displaying a high-definitition video when inputted synchronizing signals are normal and displaying a stable video when the inputted synchronizing signals are out of standard. SOLUTION: In an RGB signal display device in which RGB signals inputted from an analog RGB signal output equipment 1 are synchronized to the synchronizing signals simultaneously inputted, image processed in an image processing section 4 and displayed on a display device 6, the followings are provided between the analog RGB signal output equipment and the image processing section, that is, a plurality of input buffers made of an input buffer (high speed) 2-1 which makes the rising of normal synchronizing signals outputted from the analog RGB signal output equipment more sharp and outputs the signals and an input buffer (a Schmitt trigger) 2-2 which makes non-standard synchronizing signals into stable signals and outputs the signals, a high speed analog SW3 which selects the output from the plurality of input buffers and inputs the selected output to the image processing section and means (3, 7 and 8) which manually or automatically switches the high speed analog SW. COPYRIGHT: (C)2006,JPO&NCIPI
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