Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2005-05-10
2005-05-10
Nguyen, Chanh (Department: 2675)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
Reexamination Certificate
active
06891524
ABSTRACT:
To prevent lowering of dynamic range and deterioration of image quality, when an image is displayed in a liquid panel in a state of being irradiated with light, the luminance of an illumination light is changed corresponding to the luminance of the entire image. In this way, compared to the case where the luminance of the illumination light is not changed, the dynamic range can be increased. Further, a picture signal applied to each picture element of a liquid panel is judged individually, and if it is not more than a standard luminance A1, it is amplified by a large amplification factor, and if it is not less than a standard amplification factor A2, it is amplified by a small amplification factor, whereby a contrast of the image not more than the standard luminance A1is improved. Even for the image not less than A2, the contrast does not disappear, but the image is recognizable.
REFERENCES:
patent: 5969820 (1999-10-01), Yoshii et al.
patent: 6535224 (2003-03-01), Kuriyama et al.
patent: 6624862 (2003-09-01), Hayashi et al.
patent: 11-65528 (1999-03-01), None
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Nguyen Chanh
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