Abstract: The present invention relates to an alphanumeric display unit means for improving the identification quantities at selected key buttons of a computer-linked typewriter console through usage of light-emitting identification indicia attached adjacent to or at the selected key buttons. Each light-emitting display comprises a gaseous glow indicator tube means containing an ionizable gas selectively activated through controller switch means so as to provide a gas glow pattern corresponding to an alphanumeric indicium for which display is sought.

Abstract: The present invention relates to an alphanumeric display unit means for improving the identification quantities at selected key buttons of a computer-linked typewriter console through usage of identification indicia attached adjacent to or at the selected key buttons. Each display is in matrix format consisting of a set of liquid-crystal devices arranged in orthogonal rows and columns. Energization of each set of liquid-crystal devices is via digital control circuitry. Result: a repetitive display in matrix format in a configuration corresponding to an alphanumeric indicium for which display is sought.

Abstract: The present invention relates to an alphanumeric display unit means for improving the identification quantities at selected key buttons of a computer-linked typewriter console through usage of light-emitting indentification indicia attached adjacent to or at the selected key buttons. The light-emitting display means comprises a set of fluorescent luminescent alphanumeric display means each including a pair of side-by-side indicating units. The last-mentioned units are arranged so as to include an array of fluorescent segments formed on a common side of an insulating plate within a transparent envelope containing an ionizable gas. In operation, each pair of side-by-side indicating units is selectively activated by means of controller switch means connected thereto. Result: a luminescent two-character display in a fluorescent pattern of light corresponding to the alphanumeric indicia for which display is sought.

Abstract: The present invention relates to an alphanumeric display unit means for improving the identification quantities at selected key buttons of a computer-linked typewriter console through usage of light-emitting identification indicia attached adjacent to or at the selected key buttons. Each light-emitting display is in matrix format consisting of a set of light-emitting diodes (LED's) arranged in orthogonal rows and columns. Energization of the LED's is by means of digital control circuitry. Result: a repetitive light-emitting display in matrix format in a configuration corresponding to an alphanumeric indicium for which display is sought.

Abstract: The present invention relates to an alphanumeric display unit means for improving the identification quantities at selected key buttons of a computer-linked typewriter console through usage of light-emitting identification indicia attached adjacent to or at the selected key buttons. The light-emitting display unit means comprises a set of planar gas discharge means each including at least a pair of side-by-side indicator units aligned on a common side within a unitary transparent envelope containing an ionizable gas and selectively activated by means of controller switch means connected thereto. Result: a two-character display in a pattern of light corresponding to the alphanumeric indicia for which display is sought.

Abstract: The present invention relates to an alphanumeric display unit means for improving the identification quantities at selected key buttons of a computer-linked typewriter console through usage of light-emitting identification indicia attached adjacent to or at the selected key buttons. Each light-emitting display is in matrix format consisting of a set of fiber optic members arranged in orthogonal rows and columns. Encoding is via stencil tab means inserted in the path of light generated by incandescent bulb means in operational alignment with each set of fiber optic members.

Abstract: The present invention relates to an alphanumeric display unit means for improving the identification quantities at selected key buttons of a computer-linked typewriter console through usage of light-emitting indentification indicia attached adjacent to or at the selected key buttons. Each light-emitting display is in matrix format consisting of a set of fiber optic members arranged in orthogonal rows and columns. Encoding is via cooperative drum means including a plurality of rotatable light-emitting diodes (LED's) columnarly aligned at the interior of the drum means for generating a series of light signals for transmission along each set of fiber optic members.