专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

92. 发明授权

US06805817B2 Molecular devices activated by an electric field for electronic ink and other visual display 失效
标题翻译：通过电场激活的分子器件用于电子墨水等视觉显示
公开(公告)号：US06805817B2
公开(公告)日：2004-10-19
申请号：US09932186
申请日：2001-08-17
申请人： Xiao-An Zhang , Alexandre Bratkovski , Yong Chen , R. Stanley Williams , Kent D. Vincent
发明人： Xiao-An Zhang , Alexandre Bratkovski , Yong Chen , R. Stanley Williams , Kent D. Vincent
IPC分类号： H01B112
CPC分类号： G11C13/0014 , B82Y10/00 , C09D11/03 , C09D11/50 , C09K9/02 , G02B26/026 , G02F1/15 , G02F1/17 , G02F1/174 , G11C13/02 , G11C13/04 , G11C23/00 , G11C2213/14 , G11C2213/77
摘要： An electric field activated molecular system, preferably bi-stable, configured within an electric field generated by a pair of electrodes is provided for use, e.g., as electronic ink or other visual displays. The molecular system has an electric field induced band gap change that occurs via a change (reversible or irreversible) of the extent of the electron conjugation via chemical bonding change to change the band gap, wherein in a first state, there is substantial conjugation throughout the molecular system, resulting in a relatively smaller band gap, and wherein in a second state, the substantial conjugation is destroyed, resulting in a relatively larger band gap. The changing of substantial conjugation may be accomplished in one of the following ways: (1) charge separation or recombination accompanied by increasing or decreasing electron localization in the molecule; or (2) change of substantial conjugation via charge separation or recombination and&pgr;-bond breaking or making. A primary advantage of the molecular system is improved contrast. Because the colorant of the present invention is molecular and thus effectively monoplanar, there should be no backside reflection or excessive scattering from the colorant. A second advantage of the present invention is improved resolution. Finally, each molecule of the present invention will latch to stabilize one or the other of its color states.
摘要翻译：提供了在由一对电极产生的电场内配置的电场活化分子系统，优选双稳态，用于例如电子墨水或其它视觉显示器。分子系统具有电场诱导的带隙变化，其通过经由化学键合改变的电子共轭程度的变化（可逆的或不可逆的）发生，以改变带隙，其中在第一状态下，在整个分子系统，导致相对较小的带隙，并且其中在第二状态下，基本共轭被破坏，导致相对较大的带隙。基本共轭的改变可以通过以下方式之一来实现：（1）伴随着分子中电子定位增加或减少的电荷分离或重组; 或（2）通过电荷分离或重组和断裂或制造改变基本共轭。分子系统的主要优点是对比度提高。因为本发明的着色剂是分子的，因此有效地是单面的，所以不应该有着色剂的背面反射或过度的散射。本发明的第二个优点是分辨率提高。最后，本发明的每个分子将锁定以稳定其一个或多个其颜色状态。

IPRDB

热门服务

关于我们

友情链接

联系方式