Product category:
Other OEM Display Modules and Meters
News Release from: Rohm Electronics | Subject: LUM-512Hx351
Edited by the Electronicstalk Editorial
Team on 16 January 2003
LED modules are brighter outside
Rohm has expanded its family of dot matrix LED displays with two low weight, highly integrated 512 dot single colour units.
Rohm has expanded its family of dot matrix LED displays with two low weight, highly integrated 512 dot single colour units that will significantly simplify the design and implementation of large scale indoor and outdoor display screens Combining high brightness yellow (LUM-512HY351) or high brightness orange (LUM-512HD351) output with low current operation, Rohm's new LUM-512Hx351 single-colour 16 x 32 high-performance dot matrix displays feature 512 chip LEDs and all of the necessary driving and control circuitry for operation
This article was originally published on Electronicstalk on 29 May 2008 at 8.00am (UK)
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Combining multiple LUM-512Hx351 units together in either horizontal or vertical directions allows designers to quickly and easily create large-scale display applications such as passenger information systems and information boards.
The LUM-512Hx351 displays use AlGaInP surface mount yellow and orange chip LEDs that operate with typical wavelengths of 590 and 612nm respectively.
Maximum LED current consumption is just 2A in both cases.
A dot pitch of 6mm results in display screen dimensions of 96 x 192mm, and typical brightness ratings are 2000cd/m2 for the yellow display and 3000cd/m2 in the case of the orange unit.
Both modules weigh just 100g.
Based around a proprietary ASIC developed by Rohm, the display controller circuitry offers display data memory for two screens and operates with a 6.25% duty cycle.
Maximum control circuit current consumption is rated at just 30mA.
A built-in, potentiometer-based luminance adjustment circuit allows designers to closely match the luminance of multiple display units.
Designed to operate at temperatures of between -10 and +45C, the Rohm LUM-512Hx351 displays requires a typical LED and control circuit power supply voltage of 5V.
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