Image display apparatus

Details Image display apparatus Image display apparatus

2005-12-16

2010-11-09

Nguyen, Kevin M (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S074100

Reexamination Certificate

active

07830339

ABSTRACT:
An image display apparatus includes a rear plate having electron-emitting devices, a face plate having light-emitting regions, a spacer arranged between the rear plate and the face plate, and a drive circuit having a correction circuit which corrects input image data. A quantity of light emitted from an object light-emitting region depends on the quantity of electrons coming from a corresponding object electron-emitting device and coming from peripheral light-emitting regions of the object light-emitting region, and the quantity of light emitted from the object light-emitting region decreases when at least some of the emitted electrons are blocked by the spacer. The correction circuit includes a first circuit that calculates a value equivalent to the decrease in the quantity of light emitted from the object light-emitting region due to the blocked electrons, a second circuit that calculates a correction value by multiplying the value equivalent to the decrease in the quantity of light by an adjustment gain value that complies with a color of the object light-emitting region, and a third circuit that adds the correction value to the input image data of the object electron-emitting device.

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