Computer graphics processing and selective visual display system – Display driving control circuitry
Reexamination Certificate
2007-06-05
2007-06-05
Lao, Lun-Yi (Department: 2629)
Computer graphics processing and selective visual display system
Display driving control circuitry
C345S076000, C345S082000, C348S607000, C348S446000, C348S448000, C315S169300
Reexamination Certificate
active
10762335
ABSTRACT:
An image display apparatus has an image display including scanning lines, modulation lines and display devices driven through the scanning lines and modulation lines, a scanning circuit for supplying a scanning signal to the scanning line, a modulating circuit for supplying a modulation signal to the modulation line, and a converting circuit for converting the number of scanning lines of an input image signal. In addition, a selecting section selects a scan method of any of a first scan method and a second scan method and a changing section changes a vertical scaling filter characteristic of the converting circuit in accordance with the selected scan method. The vertical scaling filter characteristic in the case of the first scan method is a characteristic having a weaker elimination effect on high frequency components as compared with the vertical scaling filter characteristic in the case of the second scan method.
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Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Lao Lun-Yi
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