Writing device for color electronic paper

Details Writing device for color electronic paper Writing device for color electronic paper

2007-11-06

2007-11-06

Patel, Nitin I. (Department: 2629)

Computer graphics processing and selective visual display system

Display peripheral interface input device

Touch panel

C345S030000

Reexamination Certificate

active

10784126

ABSTRACT:
A writing device is provided for color electronic paper which is capable of performing full color display. The writing device includes a head unit, a head unit moving mechanism which moves the head unit in a first direction, a feeding mechanism which moves electronic paper, and a controller. The head unit includes a writing head, an LED which emits light of three primary colors, an image sensing element consisting of a CMOS sensor, and an optical system. The writing head includes an optically transparent head main portion provided with pixel electrodes, and a common electrode (counter electrode). In the controller, an arrangement of three types of microcapsules in a microcapsule layer is detected to perform electric field formation for each of the pixel electrodes based on a detection result.

REFERENCES:
patent: 6707479 (2004-03-01), Pan et al.
patent: 2002/0167480 (2002-11-01), Johnson et al.
patent: 2004/0145562 (2004-07-01), Horikiri
patent: 2006/0210339 (2006-09-01), Shimoda et al.
patent: 2000-035598 (2000-02-01), None
patent: 2000-127478 (2000-09-01), None

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