1
Yasuo Okuno: Light-emitting diode display. Zaidan Hojin Handotai Kenkyu Shinkokai, Cushman Darby & Cushman, November 3, 1981: US04298869 (396 worldwide citation)

A plurality of light-emitting diodes are connected in series to elevate the working voltage. A plurality of said series connection are connected in parallel to maintain display even upon a disconnection accident. The total number of light-emitting diodes provides a bright and failure-safe colored li ...


2
Jun ichi Nishizawa, Yasuo Okuno, Keishiro Takahashi: Light-responsive light-emitting diode display. Zaidan Hojin Handotai Kenkyu Shinkokai, Cushman Darby & Cushman, May 11, 1982: US04329625 (276 worldwide citation)

A light-responsive light-emitting diode display comprises a light-emitting diode circuit including a series connection of light-emitting diodes and a light-responsive current-controlling circuit connected in series to said light-emitting diode circuit for supplying a current thereto in correspondenc ...


3
C Eric Hunter: Shuttered and cycled light emitting diode display and method of producing the same. Cree Research, Bell Seltzer Park & Gibson, October 25, 1994: US05359345 (269 worldwide citation)

A high resolution, full color display is provided having a liquid crystal pixel selectably addressable during a predetermined time period, a set of at least one red, one green and one blue color light source adjacent the liquid crystal pixel for emitting light through the liquid crystal pixel, and m ...


4
C Eric Hunter: High resolution, high brightness light emitting diode display and method and producing the same. Cree Research, Philip Summa Patent Attorney, March 3, 1998: US05724062 (231 worldwide citation)

A high resolution, high brightness, full color display is provided having a liquid crystal pixel selectably addressable during a predetermined time period, a set of at least one red, one green, and one blue color light emitting diodes positioned adjacent the liquid crystal pixel for emitting light t ...


5
Robert E Gleason: Active matrix light emitting diode display. Agilent Technologies, May 21, 2002: US06392617 (216 worldwide citation)

An active matrix pixel within an active matrix display includes a photodiode that is optically connected to a light emitting diode within the pixel in order to detect a portion of the luminous flux that is generated by the light emitting diode. The photodiode discharges excess charge within the pixe ...


6
Carl Joseph Molinaroli: Light emitting diode display device. Kathleen M Harleston, Harleston Law Firm, July 24, 2001: US06265984 (206 worldwide citation)

A pre-programmed device and method for forming and displaying images includes: electrically powered light emitters in one or more rows that can be moved in a path generally perpendicular with the row of lights; a microprocessor(s) controlling the lights; motion or speed sensors which enable the disp ...


7
Elkin Acevedo: Display keyboard. October 6, 1998: US05818361 (185 worldwide citation)

A display keyboard including a conventional keyboard having an upper edge, lower edge, and pair of side edges. A plurality of display keys are situated on the keyboard. Each display key has a liquid crystal display, light emitting diode display, or any future state of the art display invention situa ...


8
Michael Simon, Benjamin Roque: Light-emitting diode display system. Alfred A Equitz, December 12, 1989: US04887074 (174 worldwide citation)

A computer-controlled LED display system including an N.times.M rectangular array of light units. Each light unit includes one or more LED's that are driven so as to emit a train of light pulses separated by intervals of substantially zero light intensity. The temperature of the LED cathodes will de ...


9
Der Jong Chen: Light emitting diode display. Bacon & Thomas, July 13, 1993: US05226723 (165 worldwide citation)

An improved light emitting diode display includes a printed circuit board, a reflector and one or more LED chips. The printed circuit board serves as a base to fix the LED chips and the reflector has an appropriate thickness, contains one or more bowl-like reflective surfaces each with a correspondi ...


10
Michael P Norman, Paige M Holm: Full color light emitting diode display. Motorola, Robert F Hightower, December 10, 1996: US05583349 (156 worldwide citation)

A full color light emitting diode display (310) utilizes semiconductor light emitting diodes (313) to produce red light and organic light emitting diodes (312) to produce blue light. Green light is produced by either semiconductor light emitting diodes (313) or by organic light emitting diodes (331) ...