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US 7,466,292 B2Granted
Plasma display apparatus
AssigneeFujitsu Hitachi Plasma Display Limited
InventorsAyahito Kojima, Hiroyuki Wakayama, Hirohito Kuriyama, Akira Yamamoto
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AssigneeFujitsu Hitachi Plasma Display Limited
InventorsAyahito Kojima, Hiroyuki Wakayama, Hirohito Kuriyama, Akira Yamamoto
Estimating the term…
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.
A plasma display apparatus, which represents the luminance of one frame in accordance with a combination of sub-frames having respective predetermined luminance levels, comprising:
A data converter for a plasma display apparatus which represents the luminance of one frame in accordance with a combination of sub-frames having respective, predetermined luminance levels, wherein input video data are converted into output data in which ON/OFF states of the plurality of sub-frames are specified,
A driving method for a plasma display apparatus which represents luminance of one frame in accordance with a combination of sub-frames having respective, predetermined luminance levels, comprising:
Dependencies are inferred from the claim text.