Home

Primary Examiner: Bauer, Edward S.
Assistant Examiner:
Attorney: Blum Moscovitz Friedman & Kaplan

Next ten patents ordered by date:

Bi-stable image storage apparatus
Symmetrical type four-component lens system
Catoptric lens arrangement
Catoptric lens arrangement
Quick-opening sight glass assembly
Hinge attached to the split ends means for aligning an eyeglass frame at the split ends thereof and also the front
Method and apparatus for transferring wide-band sound signals
Miniature motion picture camera
Film handling apparatus control system
Vernier carriage control

Translate:
En
De
Es
Fr
It
Pt
Ja
Ko
Zh

Title: Display device with oriented liquid crystals

Abstract: In a display device using liquid crystals, including opposed transparent insulating plates which define the volume containing said liquid crystals, the inner surfaces of said transparent plates are oriented as the result of unidirectional rubbing, the direction of rubbing on the opposed plates being at 90.degree. to each other. A device using such plates has a preferred direction for viewing same.

Do you think this is a good invention? Vote now:

Votes so far: For:(0) Against:(0)
Other info:

Inventors: Maezawa, Shuji (Suwa, JA)

Application Number: 387430
Filing Date: 1973-08-10
Publication_date: 1976-03-02
Assignee: Kabushiki Kaisha Suwa Seikosha (Tokyo, JA)
Primary Class(es): 349/132
Other Classes:
US Patent Ref:

3731986

May, 1973

Fergason

350/150.

Other Refs: Other References: "Voltage-Dependent Optical Activity of a Twisted Nematic Liquid Crystal," by Schadt et al., Appl. Phys. Ltrs., Vol. 18, No. 4, pp. 127-128, 2/15/71.