Indicia display for electro-optic devices wherein the indicia co

Details Indicia display for electro-optic devices wherein the indicia co Indicia display for electro-optic devices wherein the indicia co

1991-01-28

1993-02-23

Sikes, William L.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 70, 359 79, 359254, 359838, 362 831, 359 38, G02F 113, B60Q 126

Patent

active

051895374

ABSTRACT:
An electro-optic device useful as a vehicular mirror or panel, an architectural panel, or the like includes two optically transparent substrates positioned in spaced relation to each other. An electro-optic medium having a light transmittance which is variable with the application of an electric field is captured in the space between the substrates. Indicia is applied to one of the inside surfaces of the substrates. In one aspect of the invention, a dielectric material is used for the indicia. The indicia remain visible for viewing at all times during operation of the device.

REFERENCES:
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patent: 4940315 (1990-07-01), Demiryont
Gladstone et al, "liquid crystal display device configuration" JBM, vol. 15, No. 2, Jul. 1972.

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