Electroluminescent display with integrated drive circuitry

Details Electroluminescent display with integrated drive circuitry Electroluminescent display with integrated drive circuitry

1994-08-05

1996-06-11

Pascal, Robert

Electric lamp and discharge devices: systems

Plural power supplies

Plural cathode and/or anode load device

445 1, 313505, 313506, 313509, G09G 310

Patent

active

055258670

ABSTRACT:
An electroluminescent display and method of fabricating the same is described in which an active driver panel (14) is integrated with a processed display panel (12) using a unique application of semiconductor wafer technology. A microelectronic driver circuit (32) and back electrode (34) are fabricated on a semiconductor wafer (30) to provide a panel for driving the display. Multiple driver circuits (32) and respective back electrodes (34) may be arranged on the wafer to form an active-matrix electroluminescent display. The display panel (12) includes a front electrode (18) and an adjacent phosphor panel (20) for illuminating the display. The driver panel (14) is adhered to the display panel (12) using either an indium bump connection or a thermal bond, which provide both mechanical and electrical coupling between the back electrodes (34) and the phosphor panel (20). Exposure of the active devices on the driver panel to destructive high processing temperatures inherent in display panel processing is avoided.

REFERENCES:
patent: 4006383 (1977-02-01), Luo et al.
patent: 4808983 (1989-02-01), Benjamin et al.
patent: 4977350 (1990-12-01), Tanaka et al.
patent: 5317236 (1994-05-01), Zavracky et al.

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