Invention Grant
- Patent Title: Electronic display device providing static grayscale image
- Patent Title (中): 电子显示设备提供静态灰度图像
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Application No.: US12578939Application Date: 2009-10-14
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Publication No.: US08089686B2Publication Date: 2012-01-03
- Inventor: Cary G. Addington , Jong-Souk Yeo
- Applicant: Cary G. Addington , Jong-Souk Yeo
- Applicant Address: US TX Houston
- Assignee: Hewlett-Packard Development Company, L.P.
- Current Assignee: Hewlett-Packard Development Company, L.P.
- Current Assignee Address: US TX Houston
- Main IPC: G02B26/00
- IPC: G02B26/00 ; G09G3/34

Abstract:
In one embodiment, a device includes a first display element including: a first electrode; a transparent dielectric layer having recessed regions therein over the first electrode; a halftoned second electrode opposite the first electrode; and a fluid with colorant particles between the first electrode and the second electrode, wherein a voltage signal applied between the first electrode and the second electrode controls movement of the colorant particles such that a first voltage signal provides a clear optical state by compacting the colorant particles into the recessed regions and a second voltage signal provides a grayscale optical state by attracting the colorant particles to the second electrode.
Public/Granted literature
- US20110085224A1 ELECTRONIC DISPLAY DEVICE PROVIDING STATIC GRAYSCALE IMAGE Public/Granted day:2011-04-14
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