LIQUID CRYSTAL WRITING SLATE

Patent №

US 5,115,330

Granted

1992-05-19

Filed 1990

Owner

WESTERN PUBLISHING, CO.

+1 more

Lab

AI components

1

vision

Assignment

Recorded

Dataset

AIPD

2023_r1 edition

Application

07566105

A slate, such as a writing/drawing slate, includes a base supporting a laminate which has an LC-layer (liquid crystal layer) formed of polymeric material holding micro-volumes of liquid crystal material, a conductive layer on one surface of the LC-layer, and a substantially transparent protective overlayer on the other surface of the LC-layer, apparatus for transitory application of potential through the LC-layer to the conductive layer to produce an image on the image-displaying surface area, and apparatus secured to the base to facilitate erasing of the image. In preferred embodiments the other surface of the LC-layer is substantially conductor-free.

VisionB43L 1/008G02F 1/1334

AI classification

Vision0.97
Natural language0.00
Speech0.00
Knowledge representation0.00
Machine learning0.00
Evolutionary computation0.00
AI hardware0.00
Planning0.00

Ownership

WESTERN PUBLISHING, CO.

assignment · 54120264

GOLDEN BOOKS PUBLISHING COMPANY, INC.

namechg · 82740827

Assignors

NOBILE, FREDERICK E., HARRIS, JOHN F. III, SILVERMAN, GARY S., BAUMANN, RICHARD A.

On an employer assignment, the assignors are typically the inventors.

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