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TFT LCD driver powers wQVGA displays

Posted: 01 Nov 2007 ?? ?Print Version ?Bookmark and Share

Keywords:display driver? TFT LCD? wQVGA? QVGA?


Upon continuous enhancements in display driver IC technology, Solomon Systech Ltd has developed a single chip TFT LCD driver, dubbed SSD2220, for mobile display applications. This driver supports TFT LCD with 240 x 432 (wQVGA) resolutions and it will be one of the most popular resolution options in 2008 mobile phone and portable media player applications.

"The mobile phone and PMP applications are ramping up this year, especially in China where the handset market is expected to reach 170 million units in 2007," said Danny Yip, marketing director of Solomon Systech. "Meanwhile, the display resolution is getting larger from QCIF+ and QVGA, to wQVGA in 2008. Most of the major panel makers from Korea and Taiwan are preparing for this revolution in resolution change and launching wQVGA panels on 2.6-inch, 2.8-inch and 3-inch at the end of 2007. The SSD2220 is launched with over ten panel sources of support to ensure the panel supply and capture the 2008 growth in this resolution."

SSD2220 carries an array of features such as multi-time programming (MTP) for voltage calibration, separated RGB gamma correction to optimize display performance, and charge sharing technology for power consumption improvement. The SSD2220 product is said to be the only IC offering these distinct, value-added features in the market. It also provides a true 262,000 color with 64 levels of middle voltages for grayscale generation. This ensures a true 262,000 colorful display performance.

Solomon Systech also plans to release in December a high-speed interface version of SSD2220. Dubbed the SSD2225, the new device will contain additional features such as MIPI for high data rate transfer with low EMI and minimal pin count, dynamic backlight control (DBC) solutions to further power savings by over 50 percent, and savings in additional masking charge for new panel tooling. SSD2225 will support the same wQVGA resolution TFT LCD display and same pad coordinates designed to share same LCD panel for SSD2220.

Samples of the SSD2220 are now available.

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