1
Toru Teshima, Jun ichi Nishizawa, Yasunori Kishi: Colored-light emitting display. Stanley Electric, Cushman Darby & Cushman, June 2, 1981: US04271408 (400 worldwide citation)

A plurality of cellular concave mirror surfaces are formed on a plate-like reflector unit, and a plurality of light-emitting diodes are disposed on these cellular concave mirror surfaces to jointly form a colored light source. Connection wirings to be connected with a power supply source are provide ...


2
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 ...


3
Byun Soon Nam, An Chi Yup: Shower head having a multi colored light emitting display function corresponding to a temperature change in water. Byun Soon Nam, October 15, 2007: KR1020060043042 (1 worldwide citation)

PURPOSE: A shower head, having multicolored light emitting display function corresponding to a temperature change in water is provided to radiate uni-colored or mixed colored lights with different wavelengths based on the temperature zone of water, thereby achieving therapeutic effects on pimples, l ...