DISPLAY SYSTEM CONTROL SYSTEM
PURPOSE:To prevent a display system from breaking down when the oscillation of a clock for dynamic driving stops in a display system control system which drives the display system dynamically. CONSTITUTION:The clock signal of a clock generating circuit 4 incorporated in a display system controller 1...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | PURPOSE:To prevent a display system from breaking down when the oscillation of a clock for dynamic driving stops in a display system control system which drives the display system dynamically. CONSTITUTION:The clock signal of a clock generating circuit 4 incorporated in a display system controller 1 is led out of an output terminal 5 and inputted to a microprocessor unit 2 through an input terminal 6. The microprocessor unit 2 once detecting the clock signal stopping sends a control signal for turning OFF the output of the display system controller 1 to the display system 1 from the output terminal 7 of the microprocessor unit 2 to the input terminal 8 of the display system controller 1. Consequently, the output of the display system controller 1 is turned OFF. When the clock generating circuit 4 stops oscillation, the output of the display system controller 1 is turned OFF to prevent the display system 3 from breaking down. |
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