Dec 1 2008
Leadis Technology, Inc. (NASDAQ: LDIS), a provider of best-in-class semiconductor solutions for display, power management, touch and audio applications, today announced sample availability of the LDS291 supporting VP Dynamics' advanced VPW™ RGBW display technology.
This breakthrough is significant as the patented VPW™ RGBW pixel structure provides: 1) significant advantages in backlight power saving, 2) higher brightness for improved outdoor readability, and 3) superior image quality compared to conventional RGB pixel structures. The innovative RGBW architecture allows the LDS291 to provide two modes of operation -- a physical QVGA resolution mode and a virtual VGA resolution mode using a pixel density equivalent to conventional QVGA resolution. This unique combination overcomes limitations associated with other RGBW pixel schemes, allowing for excellent Asian character text rendering and enhanced image/video resolution.
The LDS291 delivers backlight power savings of over 40% in physical mode and 70% in virtual mode. It also offers Super Power Saving (SPS) mode and Dynamic Backlight Control (DBC) mode to further maximize savings in power consumption. The SPS mode and DBC functions each provide an additional 10~20% reduction in backlight power consumption.
The 262K color LDS291 is targeted at small to mid-sized TFT displays supporting QVGA to virtual VGA applications. The state-of-the-art features of the LDS291 make it an ideal solution for devices requiring vivid color display with very low power consumption, such as mobile phone, portable navigation device, personal media player, electronic dictionary and other handheld applications. In order to broaden its appeal, the device is compliant with MPU, RGB, and MIPI DSI interfaces.
"With the LDS291 RGBW LCD driver we are demonstrating a leadership position in extending the performance of TFT LCD displays for portable electronics products," said Keeho Kim, General Manager of the Display Driver Business Unit at Leadis. "While we are currently working with two major display module manufacturers on small screen applications, our intent is to extend the RGBW technology demonstrated by the LDS291 to larger screen sizes."