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US 6,549,181 B2Granted
Image display apparatus and its driving method
AssigneeCanon Kabushiki Kaisha
InventorsKunihiro Sakai, Hidetoshi Suzuki
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AssigneeCanon Kabushiki Kaisha
InventorsKunihiro Sakai, Hidetoshi Suzuki
Estimating the term…
In an image display apparatus which has a multi-electron beam source in which a plurality of electron emission elements are connected in a matrix pattern using a plurality of data electrodes and a plurality of scanning electrodes, and a fluorescent screen having phosphors of three primary colors R, G, and B corresponding to the electron emission elements, natural white color emission is obtained while suppressing a decrease in G luminance, using, e.g., a checkerboard layout which has a G spatial resolution higher than the R or B spatial resolution and includes more G phosphors than the R or B phosphors. For this purpose, the scanning electrodes connected to the electron emission elements corresponding to the G phosphors are electrically independent from those connected to the electron emission elements corresponding to the R or B phosphors, signal components corresponding to the G phosphors and signal components corresponding to the R or B phosphors are extracted from an image signal for a 1-line period, and the scanning electrode connected to the electron emission elements corresponding to the G phosphors and those connected to the electron emission elements corresponding to the R or B phosphors are selected during successively the 1-line period.
An image display apparatus for displaying an image composed of three primary colors, comprising:
A method of driving an image display apparatus which comprises a plurality of common scanning electrodes each of which corresponds to two of three primary colors and a plurality of other scanning electrodes each of which corresponds to a remaining one of the three primary colors, and display an image composed of the three primary colors, the plurality of other scanning electrodes being electrically independent from the plurality of common scanning electrodes, the method comprising the step of:
An image display apparatus for displaying an image composed of three primary colors, comprising:
Dependencies are inferred from the claim text.