Indexing writehead for bistable media
First Claim
Patent Images
1. A system for writing a bistable media, the system comprising:
- the bistable media, including;
a substrate;
two or more discrete write areas on the substrate, each write area comprising first and second conductors and a bistable material layer interposed therebetween, the second conductor of each write area having been patterned into a plurality of contacts so as to form a plurality of individual electrical areas, the bistable material layer being selectively operable in a transmissive mode or a reflective mode; and
at least one media alignment feature on the substrate, the at least one media alignment feature comprising at least one of one or more perforations, indentations, protrusions, switches or jumper wires, the at least one media alignment feature being arranged in a spatial relation to the two or more discrete write areas; and
one or more writeheads movable relative to the bistable media, each writehead being configured to interact with the two or more discrete write areas and comprising;
one or more electrodes that, for each write area, are configured to contact the contacts of the second conductor and provide power to the first conductor and selective ones of the contacts of the second conductor so as to form an electric field therebetween, anda writehead alignment feature configured to interact with the at least one media alignment feature to align the electrodes of the writehead with the bistable media, the writehead alignment feature comprising at least one of one or more perforations, indentations, protrusions or conductive leads.
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Abstract
A system and method for writing bistable media with a writehead is described. The media has two or more discrete write areas, each area defined by at least one electrical contact, and the media further has at least one alignment feature positioned with regard to one or more discrete write area. The writehead has corresponding alignment features and electrical conductors to the alignment features and electrical contacts of the media.
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Citations
21 Claims
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1. A system for writing a bistable media, the system comprising:
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the bistable media, including; a substrate; two or more discrete write areas on the substrate, each write area comprising first and second conductors and a bistable material layer interposed therebetween, the second conductor of each write area having been patterned into a plurality of contacts so as to form a plurality of individual electrical areas, the bistable material layer being selectively operable in a transmissive mode or a reflective mode; and at least one media alignment feature on the substrate, the at least one media alignment feature comprising at least one of one or more perforations, indentations, protrusions, switches or jumper wires, the at least one media alignment feature being arranged in a spatial relation to the two or more discrete write areas; and one or more writeheads movable relative to the bistable media, each writehead being configured to interact with the two or more discrete write areas and comprising; one or more electrodes that, for each write area, are configured to contact the contacts of the second conductor and provide power to the first conductor and selective ones of the contacts of the second conductor so as to form an electric field therebetween, and a writehead alignment feature configured to interact with the at least one media alignment feature to align the electrodes of the writehead with the bistable media, the writehead alignment feature comprising at least one of one or more perforations, indentations, protrusions or conductive leads. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 18)
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10. A system for writing a bistable media, the system comprises:
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the bistable media, the bistable media including; a substrate; two or more discrete write areas on the substrate, each write area comprising first conductor and second conductors and a bistable material layer interposed therebetween, the second conductor of each write area having been patterned into a plurality of contacts so as to form a plurality of individual electrical areas, the bistable material layer being selectively operable in a transmissive mode or a reflective mode; at least one media alignment feature on the substrate, the at least one media alignment feature comprising at least one or more perforations, indentations, protrusions, switches or jumper wires, the at least one media alignment feature being arranged in a spatial relation to the two or more discrete write areas; and two or more writeheads movable relative to the bistable media, each writehead being configured to interact with the two or more discrete write areas and comprising; one or more electrodes that, for each write area, are configured to contact the contacts of the second conductor and provide power to the first conductor and selective ones of the contacts of the second conductor so as to form an electric field therebetween, and a writehead alignment feature configured to interact with the at least one media alignment feature to align the electrodes of the writehead with the bistable media, the writehead alignment feature comprising at least one of one or more perforations, indentations, protrusions or conductive leads. - View Dependent Claims (19)
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11. A method of writing a bistable media one portion at a time, the bistable media comprising a substrate;
- two or more discrete write areas on the substrate, each write area comprising first and second conductors and a bistable material layer interposed therebetween, the second conductor of each write area having been patterned into a plurality of contacts so as to form a plurality of individual electrical areas, the bistable material layer being selectively operable in a transmissive mode or a reflective mode; and
at least one media alignment feature on the substrate, the at least one media alignment feature comprising at least one of one or more perforations, indentations, protrusions, switches or jumper wires, the at least one media alignment feature being arranged in a spatial relation to the two or more discrete write areas, the method comprising;contacting the bistable media with a writehead movable relative to the bistable media, the writehead configured to interact with the two or more discrete write areas and comprising;
one or more electrodes that, for each write area, are configured to contact the contacts of the second conductor with the electrodes, the electrodes being configured to provide power to the first conductor and selective ones of the contacts of the second conductor so as to form an electric field therebetween, and a writehead alignment feature comprising at least one of one or more perforations, indentations, protrusions or conductive leads;interacting the at least one media alignment feature with the writehead alignment feature to align the one or more electrodes of the writehead with the bistable media; and moving the bistable media and the writehead relative to each other. - View Dependent Claims (12, 13, 14, 15, 17, 20)
- two or more discrete write areas on the substrate, each write area comprising first and second conductors and a bistable material layer interposed therebetween, the second conductor of each write area having been patterned into a plurality of contacts so as to form a plurality of individual electrical areas, the bistable material layer being selectively operable in a transmissive mode or a reflective mode; and
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16. A method of writing a bistable media one portion at a time, the bistable media comprising a substrate;
- two or more discrete write areas on the substrate, each write area comprising first and second conductors and a bistable material layer interposed therebetween, the second conductor of each write area having been patterned into a plurality of contacts so as to form a plurality of individual electrical areas, the bistable material layer being selectively operable in a transmissive mode or a reflective mode; and
at least one media alignment feature on the substrate, the at least one media alignment feature comprising at least one of one or more perforations, indentations, protrusions, switches or jumper wires, the at least one media alignment feature being arranged in a spatial relation to the two or more discrete write areas, the method comprising;interacting the media alignment feature with a writehead alignment feature of a writehead movable relative to the bistable media and including one or more electrodes that, for each write area, are configured to provide power to the first conductor and selective ones of the contacts of the second conductor so as to form an electric field therebetween, the media alignment feature configured to interact with the writehead alignment feature to align the writehead with the bistable media, the writehead alignment feature comprising at least one of one or more perforations, indentations, protrusions or conductive leads; and moving the writehead and the bistable media relative to one another. - View Dependent Claims (21)
- two or more discrete write areas on the substrate, each write area comprising first and second conductors and a bistable material layer interposed therebetween, the second conductor of each write area having been patterned into a plurality of contacts so as to form a plurality of individual electrical areas, the bistable material layer being selectively operable in a transmissive mode or a reflective mode; and
Specification