Abstract: A liquid crystal display (LCD) capable of automated fabrication facilitated by the use of continuous strips of plastic film on the surface of which corresponding electrode patterns are defined. Liquid crystal material, and spacing means, are sealed between the plastic strips, preferably with the aid of sealing rings formed on one of the film strips; thereby, defining the individual liquid crystal display.

Abstract: An electronic learning aid of the type having a keyboard, a display at which problems are posed, a circuit for posing problems at the display, and a circuit for comparing proposed answers entered at the keyboard with correct answers, is provided with a timing circuit for measuring elapsed time while a set of problems is being posed to an operator of the learning aid. The timing circuit is preferably arranged to actuate different segments of a timing character in the display when the timing circuit is performing its timing function. The timing circuit is also preferably arranged to actuate, at the conclusion of a set of problems, the display to provide an indication to the operator of the learning aid the total elapsed time taken in solving the set of problems.

Abstract: An electronic learning aid is provided with a display, a keyboard and circuits for posing a set of problems at the display and for comparing the operator's responses entered at the keyboard with correct solutions to the problems. A memory is provided for counting the total number of problems posed and the number of problems answered correctly. A circuit is provided for actuating the segments of the display with one of at least two different display presentations depending on the difference, if any, between the number of problems posed and the number answered correctly. The display presentations are fanciful actuations of the segments of the display of differing complexity of duration. The display presentations give the operator a "reward" for answering the set correctly. Also, particular display presentations may be initiated after each correct answer is entered.

Abstract: An automated liquid crystal display (LCD) film fabrication process. Automation is facilitated by use of strips, preferably continuous, of plastic film on proposed surface of which corresponding electrode patterns are defined. Liquid crystal material and spacing means are introduced between the plastic strips which are sealed, preferably with the aid of sealing rings screen formed on one of the films, to define individual display units. Each unit has a volume of liquid crystal material enclosed between corresponding pairs of electrode patterns on the two strips.