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2 046 390

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C1

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IPC

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Application

4356632/25, 1988-09-16

(22)

Actual filing date

1988-09-16

(45)

Published

1995-10-20

(72)

Inventor

Beresnev Leonid Alekseevich[Ru]Chernova Nina Ivanovna[Ru]Chigrinov Vladimir Grigor'Evich[Ru]Dergachev Dmitrij Ivanovich[Ru]Ivashchenko Aleksandr Vasil'Evich[Ru]Loseva Marina Vasil'Evna[Ru]Ostrovskij Boris Isaakovich[Ru]Rabinovich Arnol'D Zinov'Evich[Ru]Pozhidaev Evgenij Pavlovich[Ru]Martin Shadt[Ch]Titov Viktor Vasil'Evich[Ru]

(73)

Holder

Moskovskoe Nauchno-Proizvodstvennoe Ob"Edinenie

LIQUID CRYSTAL INDICATOR ELEMENT AND OPTICALLY ACTIVE COMPOSITIONS AS CHIRAL ADDITIVE OF LIQUID CRYSTAL Russian patent published in 1995 - IPC

Abstract RU 2046390 C1

FIELD: indicator elements; shutters. SUBSTANCE: liquid crystal indicator element has chiral ferroelectric liquid crystal, disposed between two transparent plates. Electrodes are used for generating electric field. There are polarizers in front of and behind the liquid crystal. Value of d/p relation is higher than 5 (where d is thickness of liquid crystal layer, and p is pitch screw-type twisting). Turning over angle is equal to 22,5-50 deg, and phase coefficient d·θ2o

·Δn·(1/λ) is higher than 0,45, where d is thickness of liquid crystal layer, θo, is the square of turning over angle, Δn is birefraction value and reverse value of light wavelength λ. EFFECT: improved reliability of operation. 2 cl, 1 dwg, 1 tbl

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RU 2 046 390 C1

Authors

Beresnev Leonid Alekseevich[Ru]

Chernova Nina Ivanovna[Ru]

Chigrinov Vladimir Grigor'Evich[Ru]

Dergachev Dmitrij Ivanovich[Ru]

Ivashchenko Aleksandr Vasil'Evich[Ru]

Loseva Marina Vasil'Evna[Ru]

Ostrovskij Boris Isaakovich[Ru]

Rabinovich Arnol'D Zinov'Evich[Ru]

Pozhidaev Evgenij Pavlovich[Ru]

Martin Shadt[Ch]

Titov Viktor Vasil'Evich[Ru]

Dates

1995-10-20—Published

1988-09-16—Filed

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