Advanced Imaging


Advanced Imaging Magazine

Updated: July 8th, 2008 05:26 PM CDT

Solving the Problems of Mobile Imaging

Brighter Illumination and Sharper Resolution Require Greater Power
The Nokia N95, with optics by Carl Zeiss AG, features higher resolution and more powerful lenses.
The five-megapixel Nokia N95 syncs directly with PictBridge.
Tessera's zoom and auto-focus solutions combine specialized lenses with digital light algorithms.
Tessera recently debuted wafer-level, chip-sized encapsulation for image sensors.

By Lee J. Nelson
Contributing Editor

On every display, an opaque area between each pixel and subpixel prevents light from shining through. The border, plus active image region, equals the total dimensional area. And, the proportion of active-to-total area is the panel's aperture ratio.

Integrating PenTile technology with low temperature polycrystalline silicon abets the inherent aperture ratio and brilliance, while augmenting overall transmissivity and power efficiency. Clairvoyante offers co-development programs and licenses PenTile to some of the largest panel producers including Samsung Electronics Company, Ltd. (Seoul, Korea).

"Displays optimized with PenTile technology that are coming to market will be able to meet the critical need for higher device performance and significantly lower battery consumption," Pollack added. "These displays will generate greater value for the whole supply chain—from the designers to component manufacturers to the carriers—and satisfy the growing functionality demands of consumers."

Eastman Kodak Company's (Rochester, N.Y.) 1.3-megapixel, ¼-inch format KAC-01301 CMOS sensor is optimized specifically to enable price-competitive next generation cell phones while delivering high-quality image capture. Key to the success of the KAC-01301 is the firm's PIXELUX technology, which employs low dark-current pinned photodiodes and a four-transistor shared pixel structure for improved photosensitivity and decreased noise, compared to standard CMOS imagers.

In independent partnerships with Motorola Inc. (Schaumburg, Ill.) and with Texas Instruments Inc. (Dallas), Kodak has demonstrated combined solutions that boost fidelity and facilitate ease-of-sharing mobile phone images. More vibrant colors and richer detail are the outcomes of Kodak's Perfect Touch Technology, which supports CIF, QCIF, QVGA, SVGA, SXGA, VGA and XGA formats.

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