Display device with a display mode identification function and a

Details Display device with a display mode identification function and a Display device with a display mode identification function and a

1996-07-31

2000-04-04

Nguyen, Chanh

Computer graphics processing and selective visual display system

Display driving control circuitry

Display power source

345 3, G09G 500

Patent

active

060467371

ABSTRACT:
The present invention relates to a display device and a method for identifying a display mode for a display device which receives a synchronous signal and a video signal. The display device measures a frequency or cycle of the synchronous signal, compares the measured frequency or cycle of the synchronous signal with a reference frequency or cycle to identify the display mode, and changes the reference frequency or cycle including a first and second reference value selectively for the step of comparing. According to the present invention, the display mode is stably identified.

REFERENCES:
patent: 4991023 (1991-02-01), Nicols
patent: 5231389 (1993-07-01), Yamauchi

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