Computer graphics processing and selective visual display system – Display peripheral interface input device – Light pen for fluid matrix display panel
Patent
1997-06-09
2000-03-21
Shankar, Vijay
Computer graphics processing and selective visual display system
Display peripheral interface input device
Light pen for fluid matrix display panel
345148, 345149, G09G 510
Patent
active
060408197
ABSTRACT:
A display apparatus, in which one field is divided into a plurality of sub-fields, and a relative ratio of luminescent time of each sub-field is previously determined so that by determining a combination of luminescence and non-luminescence in respective sub-fields for a picture element. The apparatus has a code converter for converting a picture signal into a coded signal including a plurality of bits which indicate the combination of luminescence and non-luminescence in the respective sub-fields. When the gradation of the picture element changes from a first level in which a first display is performed by luminescence in a first sub-field having a second relative ratio to a second level in which a second display is performed by luminescence in a second sub-field having a second relative ratio of luminescent time which is greater than the first relative ratio or when the gradation changes from the second level to the first level, the code converter provides a code conversion such that, when the gradation is in the second level, a third display is performed by luminescence in a third sub-field which has a third relative ratio of luminescent time which is not greater than the first relative ratio.
REFERENCES:
patent: 4827255 (1989-05-01), Ishii
patent: 5479188 (1995-12-01), Moriyama
patent: 5539432 (1996-07-01), Kobayashi
Mitsubishi Denki & Kabushiki Kaisha
Shankar Vijay
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