Television – Basic receiver with additional function – Multimode
Patent
1998-03-27
2000-10-03
Lee, Michael H.
Television
Basic receiver with additional function
Multimode
348564, 348792, H04N 546
Patent
active
061280453
ABSTRACT:
A liquid crystal display device is composed of a liquid crystal panel including a plurality of pixels and a plurality of data signal lines, and a panel control unit CNT for controlling the liquid crystal panel so that a selected one of a high vision signal image and an NTSC signal image can be displayed. The control unit includes an auxiliary video signal generating circuit for generating an auxiliary video signal representing an auxiliary image to be displayed in first and second remainder areas provided on both sides of a display area for displaying an NTSC signal image on the screen of the liquid crystal panel. The control unit further includes a circuit for driving the data signal lines according to results obtained by sampling the auxiliary video signal in a horizontal blanking period of an NTSC video signal and the NTSC video signal in a period excluding the horizontal blanking period from one horizontal scanning period of the NTSC video signal.
REFERENCES:
patent: 5357290 (1994-10-01), Horibe
patent: 5534940 (1996-07-01), Sato et al.
patent: 5748175 (1998-05-01), Shimada et al.
Kabushiki Kaisha Toshiba
Lee Michael H.
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