Non-glaring rearview mirror with liquid crystal mixture

Details Non-glaring rearview mirror with liquid crystal mixture Non-glaring rearview mirror with liquid crystal mixture

1988-01-11

1989-07-18

Miller, Stanley D.

350339R, G02F 113

Patent

active

048488780

ABSTRACT:
There is disclosed a rearview mirror absorbing the light when the orientation of the liquid crystal is caused to change.
A suitable amount of cholesteric material is added to the nematic liquid crystal of negative dielectric anisotropy mixed with a blue dye by 2%. The ratio of the thickness of the liquid crystal layer to the focal conic pitch d/p is limited within the range of 0.4 to 0.6. A silicone nitride layer is deposited on the upper transparent electrode so as to form an insulating film. A transparent adhesive layer is formed on the upper surface of the upper glass plate with a glass plate being pressed down to said adhesive layer.

REFERENCES:
patent: 3597044 (1971-08-01), Castellano
patent: 4490015 (1984-12-01), Kawarada et al.
patent: 4588617 (1986-05-01), Oka
patent: 4664479 (1987-05-01), Hiroshi
patent: 4715686 (1987-12-01), Iwashita et al.
patent: 4729638 (1988-03-01), Shirai

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