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.
AI classification
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.