Press Release

Solomon Systech Launches a series of new single chip TFT LCD drivers with Dynamic Backlight Control

Saving backlight power consumption by up to 50% for portable devices

(Hong Kong – 20 May, 2008) Based on continuous enhancements in display driver IC technology, Solomon Systech Limited is proud to launch today a series of new single chip TFT LCD drivers SSD2118B and SSD2225 with Dynamic Backlight Control (DBC) technology for portable device applications. The DBC technology is designed to reduce backlight power consumption while maintaining image fidelity and quality. By deploying Solomon Systech’s DBC technology, the power consumption of the backlight can be reduced by up to 50%.
SSD2118B TFT LCD Driver in COG package applied in a 320×240 Landscape QVGA TFT module
“Reducing power consumption is one of the most important tasks for battery-operated portable devices nowadays as small physical size and being lightweight are the general norm. And the backlight is always the most power consuming part in the application,” said Mr. WM Lo, Vice President, Business Operations of Solomon Systech Limited. “SSD2118B, SSD2225 and other coming driver ICs with Solomon Systech’s DBC technology bring added value to portable device manufacture without sacrificing the display quality of the end products.”

SSD2118B is a highly integrated single chip driver for portable 16-million color Audio Video TFT (AV TFT) displays in landscape QVGA resolution (320 x 240). It integrates source driver, gate driver and external power chip into a single chip solution. Combined with Solomon Systech’s DBC technology, the SSD2118B is in no doubt a cutting edge device in the market.

SSD2118B Feature Highlights

  • 320RGB x 240 single chip controller driver IC for 16M / 262k / 8 color amorphous TFT LCD
  • 24-bit/18-bit parallel or 8-bit serial RGB and SPI interface
  • NTSC interface ITU-R BT.601/656 8-bit input mode
  • Supports Dynamic Backlight Control (DBC)
  • Built-in Non-Volatile Memory (OTP) for VCOM calibration

SSD2225 is a High Speed Interface version of SSD2220, which supports TFT LCD with wQVGA resolution (240 x 432). For the input pin side, the integrated Mobile Industry Processor Interface (MIPI) on SSD2225 enables high data rate transfer with low EMI and minimized pin count for connection, while at the output pin side to LCD panel, the SSD2225 is made compatible to SSD2220 such that they can share the same LCD panel design. Combined with Solomon Systech’s DBC technology, the SSD2225 further improves power saving and makes it a perfect choice for power sensitive applications.
Without DBC       With DBC
SSD2225 Feature Highlights

  • 240RGB x 432 single chip controller driver IC for 262k/16M color amorphous TFT LCD with integrated MIPI interface
  • 8-color display mode for power saving
  • 3 programmable gamma correction curves for Red, Green and Blue
  • Supports Dynamic Backlight Control (DBC)
  • Built-in Non-Volatile Memory for VCOM calibration
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