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High density LED display panel on silicon microreflector and integrated circuit

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3 Author(s)
Takahashi, K. ; Dept. of Electron., Saitama Univ., Urawa, Japan ; Tadokoro, N. ; Takeuchi, Satoshi

Two types of high density light-emitting-diode (LED) array units for a display panel were fabricated using LED chips. One is so made that LED chips are mounted on a silicon microreflector. The reflector was formed on a (100) silicon wafer by anisotropic chemical etching. LEDs on the unit are arrayed in a matrix structure and the strength of light emission is controlled by the pulse width of the current into the LEDs. The other has a complex structure with integrated circuits for driving the LED. The driving circuits, on which LED chips are mounted, hold and control the selected LED currents. The latter is superior to the former in brightness of the display

Published in:

Electronic Manufacturing Technology Symposium, 1995, Proceedings of 1995 Japan International, 18th IEEE/CPMT International

Date of Conference:

4-6 Dec 1995