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公开(公告)号：EP1438632A2
公开(公告)日：2004-07-21
申请号：EP02791184.1
申请日：2002-10-16
IPC分类号： G02F1/167
CPC分类号： G06F3/03545
摘要： An electronic writing instrument for rewritable electronic writing surfaces. A self-powered, untethered, pencil-like instrument uses a perpendicular fringe field for changing the orientation of pixels composed of bistable, bichromal colorant elements. An appendix hereto describes bistable, bichromal, molecular colorant.
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2.发明公开BISTABLE MOLECULAR MECHANICAL DEVICES WITH A BAND GAP CHANGE ACTIVATED BY AN ELECTRIC FIELD FOR ELECTRONIC SWITCHING, GATING AND MEMORY APPLICATIONS. 审中-公开与BI-稳定的分子机械机构通过将带隙电场活化更改电子开关和记忆
公开(公告)号：EP1374322A2
公开(公告)日：2004-01-02
申请号：EP02723721.3
申请日：2002-03-28
IPC分类号： H01L51/20
CPC分类号： B82Y10/00 , G02F1/15 , G02F1/174 , G11C13/02 , G11C13/04 , G11C2213/14 , G11C2213/77 , G11C2213/81 , H01L51/0591
摘要： Molecular systems are provided for electric field activated switches, such as a crossed-wire device or a pair of electrodes to which the molecular system is linked by linking moieties. The crossed-wire device comprises a pair of crossed wires that form a junction where one wire crosses another at an angle other than zero degrees and at least one connector species connecting the pair of crossed wires in the junction. The connector species comprises the molecular system, which has an electric field induced band gap change, and thus a change in its electrical conductivity, that occurs via one of the following mechanisms: (1) molecular conformation change; (2) change of ex-tended conjugation via chemical bonding change to change the band gap; or (3) molecu-lar folding or stretching. Nanometer-scale reversible electronic switches are thus pro-vided that can be assembled easily to make cross-bar circuits, which provide memory, logic, and communication functions.
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公开(公告)号：EP1439960A2
公开(公告)日：2004-07-28
申请号：EP02789311.4
申请日：2002-10-29
CPC分类号： B41J3/4076 , B41J3/36
摘要： The present invention provides a printer and media solution that is conducive to briefcase-compatible compactness, battery operation, and media reuse. The printer consists of a low power, electrode array that images the surface of a paper-like, rewritable sheet. The sheet is responsive to pixel-sized electric fields produced by each electrode, resulting in a pixel array that is imaged in response to field polarity. The sheet is coated with a rewritable colorant that is a highly energy efficient, bistable, bi-modal molecular layer, requiring energy only to change an image, not to hold or illuminate it.
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4.发明公开BISTABLE MOLECULAR MECHANICAL DEVICES ACTIVATED BY AN ELECTRIC FIELD FOR ELECTRONIC INK AND OTHER VISUAL DISPLAY APPLICATIONS 审中-公开THROUGH电场兴奋的BI-稳定的分子机械，用于电子墨水和显示应用安排
公开(公告)号：EP1402313A2
公开(公告)日：2004-03-31
申请号：EP02742367.2
申请日：2002-06-27
IPC分类号： G02F1/15
CPC分类号： G11C13/0014 , B82Y10/00 , G02B26/026 , G02F1/15 , G02F1/174 , G11C13/02 , G11C13/04 , G11C23/00 , G11C2213/14 , G11C2213/77
摘要： An electric field activated bi-stable molecular system (16, 630) configured within an electric field generated by a pair of electrodes (301, 303 or 301, 305 or 403, 405) is provided for use, e.g., as electronic ink (12) or other visual displays. The molecular system (16, 630) has at least one rotor portion (632) connected to at least one stator portion (634), wherein the rotor portion (632) rotates with respect to the stator portion (634) between at least two different states upon application of the electric field, thereby inducing a band gap change in the molecular system (16, 630), wherein in a first state, there is extended conjugation throughout the major portion of the molecular system (16, 630), resulting in a relatively smaller band gap, and wherein in a second state, the extended conjugation is destroyed, resulting in a relatively larger band gap. A primary advantage of the molecular system (16, 630) is improved contrast. Because the colorant of the present invention is molecular and thus effectively monoplanar, there should be no backside reflection or scattering from the colorant. A second advantage of the present invention is improved resolution. Finally, each molecule (16, 630) of the present invention will latch to stabilize one or the other of its color states.
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公开(公告)号：EP0990230A1
公开(公告)日：2000-04-05
申请号：EP98925240.8
申请日：1998-05-27
发明人： VINCENT, Kent, D.
CPC分类号： G03G15/221 , B41J2/471 , B41J3/4076 , G03G15/04072 , G03G15/18 , G03G15/6597 , G03G2215/00447 , G03G2215/00518
摘要： A low cost, high speed, high resolution laser printer method and apparatus for rewritable media is presented. Three aspects are presented: 1) a bi-stable, microencapsulated dichroic sphere colorant and surface coating therefor for producing an electric field writable and erasable medium - such as paper or a paper-like display, 2) an electrophotographic printer that is capable of conventional toner-based printing and rewritable 'paper' printing and 3) a greatly simplified electrophotographic printer that is dedicated to printing rewritable media. The printer embodiments are based on conventional low cost laser printer designs, and have significant advantages in product cost, printing resolution and speed over the electrode array printer. A laser scanner (220) is used to writably erase the uniform, high voltage charge deposited on the surface of a photoconductor drum or belt (210). When the rewritable paper (140) is brought in contact with the charge written photoconductor (210) through a bias backed roller (250), fields generated between the photoconductor (210) and the back electrode (250) cause color rotation of the dichroic spheres (100) to develop the desired print image.
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6.发明公开MOLECULAR MECHANICAL DEVICES WITH A BAND GAP CHANGE ACTIVATED BY AN ELECTRIC FIELD FOR OPTICAL SWITCHING APPLICATIONS 审中-公开WITH A被电场活化带隙改变光交换应用分子机械装置
公开(公告)号：EP1390808A2
公开(公告)日：2004-02-25
申请号：EP02766833.4
申请日：2002-04-25
CPC分类号： B82Y10/00 , G02F1/15 , G02F1/174 , G11C13/02 , G11C13/04 , G11C23/00 , G11C2213/14 , G11C2213/71 , G11C2213/77 , G11C2213/81
摘要： Molecular systems (430, 630, 630', 730) are provided for electric field activated switches, such as optical switches (101, 205, 207, 209). The molecular system (430, 630, 630', 730) has an electric field induced band gap change that occurs via one of the following mechanisms: (1) molecular conformation change; (2) change of extended conjunction via chemical bonding change to change the bang gap; or (3) olecular folding or stretching. Nanometer-scale reversible optical switches are thus provided that can be assembled easily to make a variety of optical switches (101, 205, 207, 209) are thus provided that can be assembled easily to make a variety of optical devices, including optical displays (100, 200, 300).
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