| 摘要 |
<p>PURPOSE:To connect an input unifying plane display by use of a signal line by storing an information to indicate a displaying portion and displaying a video signal from a personal computer body based on this information. CONSTITUTION:An input coordinate from a tablet 10 is fed to a tablet controller 22 and converted into a coordinate information of a display scope. At this time, a start address and color information only are fed to a liquid crystal controller 27, and other coordinate information is fed to the video memory of a personal computer body 6. Then, the liquid crystal controller 27 reads the information displayed on the scope stored in the video memory of the body 6, receives only a required portion and writes in a liquid crystal frame memory 28. The information written in the memory 28 is read out by a signal from an address signal line 32, P/S converted in the liquid crystal controller 27 and displayed on a liquid crystal 11 through a liquid crystal driver 35.</p> |
