Display controller for CRT/flat panel display apparatus

Details Display controller for CRT/flat panel display apparatus Display controller for CRT/flat panel display apparatus

1988-06-17

1990-12-25

Oberley, Alvin E.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340781, 340784, 340805, G09G 302

Patent

active

049806785

ABSTRACT:
In a system which has a flat panel display as a standard unit, and to which a color display unit can be arbitrarily connected, a CRT palette data buffer and a flat panel display unit palette data buffer are connected to a CPU via a system bus. CRT and PDP default values of palette data set in the buffers are stored in a BIOS.ROM, and are red out therefrom by the CPU and are set in buffers, respectively. When a CRT display unit or a PDP is selected by way of a keyboard operation, the CPU reads out the palette data from the corresponding buffer, and loads it into a palette. A CRT controller then causes the selected display unit to display the palette data set in the palette.

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