Plasma display apparatus

Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix

Reexamination Certificate

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Details

C345S066000, C345S089000, C315S169400

Reexamination Certificate

active

07053868

ABSTRACT:
According to the present invention, a plasma display apparatus, which represents the luminance of one frame in accordance with a combination of plural sub-frames having luminance levels corresponding to a plurality of weighted values, additionally includes a sub-frame having a luminance level lower than the minimum gray scale level of luminance which can be represented by the number of bits in the input video data. Such plasma display apparatus turns on a desired combination of the sub-frames so as to increase the resolution of the luminance without increasing the conventional number of gray scale levels included in the input video data. In a preferred embodiment, especially when the added smaller luminance sub-frame is included in a combination of sub-frames for a low luminance area, the resolution of the gray scale of the low luminance area can be increased, and the representation of gray scale can be enhanced in a low luminance area to which the sight of a person is more sensitive.

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patent: 5854540 (1998-12-01), Matsumoto et al.
patent: 5940142 (1999-08-01), Wakitani et al.
patent: 6097358 (2000-08-01), Hirakawa et al.
patent: 6222512 (2001-04-01), Tajima et al.
patent: 698 874 (1996-02-01), None
patent: 833 299 (1998-04-01), None
patent: 11-95719 (1999-04-01), None
patent: 11-146306 (1999-05-01), None

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