Optically writable display medium and optical writing method

Details Optically writable display medium and optical writing method Optically writable display medium and optical writing method

2011-05-24

2011-05-24

Healy, Brian M. (Department: 2883)

Liquid crystal cells, elements and systems

Particular excitation of liquid crystal

Optical excitation

C349S002000, C349S012000

Reexamination Certificate

active

07948567

ABSTRACT:
An optically writable display medium includes an optical switching element and a display element. The optical switching element includes a charge transport layer sandwiched between an upper charge generating layer and a lower charge generating layer. The display element includes a display layer having memory properties and is provided on the optical switching element. The absorption wavelength region of the upper charge generating layer and the absorption wavelength region of the lower charge generating layer are substantially different from each other.

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