EP0308987A2
Expired / Lapsed
EP
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Display apparatus
Assignee: Canon Inc
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Filing: 1988-09-26
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Granted: —
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Expires: 2008-09-26
Abstract
Abstract A display apparatus includes: a) a matrix electrode structure comprising a set of plural scanning electrodes and a set of plural data electrodes intersecting with the scanning electrodes; b) scanning electrode drive means for serially applying a scanning selection signal to the scanning electrodes and data electrode drive means for applying data signals in parallel; c) means for serially generating an address signal for addressing a scanning electrode to which the scanning selection signal is to be applied and image signals for directing data signals to be sent to the data electrodes to the respective data electrodes; and d) means for generating a signal for directing a changeover between a transfer of the address signal to the scanning electrode drive means and a transfer of the image signals to the data electrode drive means. The display apparatus is particularly adapted for partial rewriting.
Inventors
- 👤 Hideo Kanno
- 👤 Hiroshi Inoue
- 👤 Atsushi Mizutome
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 07:38
CPC Classifications
G; G09; G09G; G09G3/00; G09G3/20; G09G3/34; G09G3/36; G09G3/3611; G09G3/3622; G09G3/3629; G09G2310/00; G09G2310/04
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
134 words
A display apparatus, comprising: a) a matrix electrode structure comprising a set of plural scanning electrodes and a set of plural data electrodes intersecting with the scanning electors; b) scanning electrode drive means for serially applying a scanning selection signal to the scanning electrodes and data electrode drive means for applying data signals in parallel; c) means for serially generating an address signal for addressing a scanning electrode to which the scanning selection signal is to be applied and image signals for directing data signals to be sent to the data electrodes to the respective data electrodes; and d) means for generating a signal for directing a changeover between a transfer of the address signal to the scanning electrode drive means and a transfer of the image signals to the data electrode drive means.
Claim 2
Dependent Claim
134 words
A display apparatus, comprising: a) a matrix electrode structure comprising a set of plural scanning electrodes and a set of plural data electrodes intersecting with the scanning electors; b) scanning electrode drive means for serially applying a scanning selection signal to the scanning electrodes and data electrode drive means for applying data signals in parallel; c) means for serially generating an address signal for addressing a scanning electrode to which the scanning selection signal is to be applied and image signals for directing data signals to be sent to the data electrodes to the respective data electrodes; and d) means for generating a signal for directing a changeover between a transfer of the address signal to the scanning electrode drive means and a transfer of the image signals to the data electrode drive means.
Claim 3
Dependent Claim
32 words
An apparatus according to Claim 1, wherein said transfer of the address signal to the scanning electrode drive means is synchronized with a horizontal scanning signal for defining one horizontal scanning period.
Claim 4
Dependent Claim
20 words
An apparatus according to Claim 1, wherein a liquid crystal is disposed between the scanning electrodes and the data electrodes.
Claim 5
Dependent Claim
15 words
An apparatus according to Claim 3, wherein said liquid crystal is a ferroelectric liquid crystal.
Claim 6
Dependent Claim
142 words
A display apparatus, comprising: a) a matrix electrode structure comprising a set of plural scanning electrodes and a set of plural data electrodes intersecting with the scanning electrodes; b) scanning electrode drive means for serially applying a scanning selection signal to the scanning electrodes and data electrode drive means for applying data signals in parallel; c) means for serially generating an address signal for addressing the scanning electrodes so that the scanning selection will be applied to only scanning electrodes in a rewriting region and rewriting image signals for directing data signals to be sent to the data electrodes to the respective data electrodes; and d) means for generating a signal for directing a changeover between a transfer of the address signal to the scanning electrode drive means and a transfer of the rewriting image signals to the data electrode drive means.
Claim 7
Dependent Claim
142 words
A display apparatus, comprising: a) a matrix electrode structure comprising a set of plural scanning electrodes and a set of plural data electrodes intersecting with the scanning electrodes; b) scanning electrode drive means for serially applying a scanning selection signal to the scanning electrodes and data electrode drive means for applying data signals in parallel; c) means for serially generating an address signal for addressing the scanning electrodes so that the scanning selection will be applied to only scanning electrodes in a rewriting region and rewriting image signals for directing data signals to be sent to the data electrodes to the respective data electrodes; and d) means for generating a signal for directing a changeover between a transfer of the address signal to the scanning electrode drive means and a transfer of the rewriting image signals to the data electrode drive means.
Claim 8
Dependent Claim
32 words
An apparatus according to Claim 5, wherein said transfer of the address signal to the scanning electrode drive means is synchronized with a horizontal scanning signal for defining one horizontal scanning period.
Claim 9
Dependent Claim
20 words
An apparatus according to Claim 5, wherein a liquid crystal is disposed between the scanning electrodes and the data electrodes.
Claim 10
Dependent Claim
15 words
An apparatus according to Claim 7, wherein said liquid crystal is a ferroelectric liquid crystal.
References Cited (Backward Citations)
No citation records indexed.
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