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Displays offer enhanced color

Posted: 19 Sep 2005 ?? ?Print Version ?Bookmark and Share

Keywords:american bright optoelectronics? super blue? dot matrix display?

American Bright Optoelectronics announced the availability of its newest "Super Blue" seven-segment (single- and dual-digit) and dot matrix displays with multiplex and serial drivers for enhanced color and uniform brightness. These new BHS, BD and BM series devices provide improved information display quality in critical control applications such as medical instrumentation, scanners, avionics and industrial controls as well as other general application uses.

The BHS single-digit (14.22mm digit height) and BD dual-digit (13.80mm digit height) series displays are said to feature excellent character appearance, using super-blue chips based on high-efficiency InGaN or GaN technologies, respectively.

Dual-digit displays are TTL compatible, using constant current drivers and serial data input, and offer a wide supply voltage range (3.5V to 6.5V LED 0.5V). These single- or dual-digit units can be formed into uniform arrays. Integral IC circuits include MOS, N-channel silicon gate technology; serial data, 35-bit shift registers, 34 LED driver output and brightness controls.

Performance characteristics include DC forward current (IF) per segment of 30mA (peak duty current 150mA), and power dissipation of 120mW per segment. The standard wavelength is 460nm peak. The operating temperature range is -40C to 80C. All configurations are manufactured in compliance with Pb-free (RoHS) materials and processes.

The BM series dot matrix module features a compact 5 x 7 grid design, using 3mm dots on a black surface for enhanced super blue color (GaN/SIC substrate), with a 39.1mm matrix height, which is capable of forming easily readable characters. Operation is based on a multiplex drive. Electrical and temperature characteristics are the same as the seven-segment devices.

The BHS and BD (with driver) blue seven-segment displays are priced from $3 and $8.50 each in production quantities, respectively. The BM series blue dot matrix displays are priced from $6 each. All are available from stock or the factory in special configurations. Modules are packaged in auto insertion tubes (50 pieces per tube, 50 tubes per carton).

- Gina Roos


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