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Domain: sharpsma.com

Stories and comments across the archive that link to sharpsma.com.

Stories · 3

  1. IBM Smart Card OS On A 1MB Smart Card

    Yro · Security · · posted by timothy · from the what-will-your-passport-say-about-you dept. · 128 comments
    michaelpapet.com writes "IBM has ported/developed their Javacard smart card operating system for Sharp's 1MB smart card. Read Sharp's announcement here. Interesting features include: AES encryption; elliptical curve encryption; and 1MB of storage. Sharp's smart card package claims to be almost as small as a normal smart card package. In an industry that can considers 64K of memory a luxury, 1MB is staggering. Read Sharp's original 1MB smart card announcement here. Is this a 'Build it and they will come...' kind of solution? How small is an 'almost as small' smart card IC package?"

  2. Toward Micro-Diode Display Panels?

    Hardware · Displays · · posted by Cliff · from the large-two-dimensional-LED-arrays dept. · 150 comments
    VernonNemitz asks: "Light-Emitting Diodes (LEDs) have been around for decades, and they come in all colors. Here are the basic principles behind their operation, information on what's currently in production , and other practical info. Now, you would think it obvious that video displays should be made from LEDs, to take on the various competitors. Certainly this has been done on a large scale, and I am not the first to be interested in LED display technology for home viewing. The apparent goal of silicon LEDs these days seems to be tied up with optical communications between circuits, have they forgotten the possibility of making high-resolution display panels?"

    "Achieving a good image will require smaller pixels, and now I have a better understanding of what has been holding it up, so would like to share what I found out. Basically, unlike a lot of electronic technology, LEDs are mostly -not- made from silicon. So, while silicon diodes are common, and large arrays of them are also made (for sensors), LEDs are not easy to incorporate into standard integrated-circuit manufacturing. Nevertheless, researchers have been pursuing and steadily making progress toward integrating silicon-based LEDs. Even whole arrays, 'suitable for large two-dimensional areas', of silicon laser LEDs have been made, as far back as three years ago."

  3. New Substrate Tech Creates System LCDs

    Science · Science · · posted by timothy · from the just-toss-the-cpu-in-there-too dept. · 129 comments
    smartalix writes "Sharp Microelectronics has recently developed a new LCD substrate technology called Continuous-Grain Silicon (CG-Silicon), that enables device integration on a scale previously impossible. The technology enables the creation of System LCDs that integrate all driver and operation circuitry -- including digital logic, LCD driver, power supply, I/O interfaces, and signal-processing circuitry -- onto the glass itself. Eventually even the device's CPU will be included on the substrate. A key SLCD feature is the ability to dynamically control the resolution and color depth, providing output in multiple-resolution modes while lowering overall power consumption. A 3.7-in. SLCD created with CG-Silicon had a power consumption of 14 mW for color VGA, 8 mW for color QVGA, and 2 mW for monochrome QVGA. The first commercially available product that incorporates the System LCD architecture is Sharp's Zaurus SL-C700 PDA, recently released in Japan."