Cupertino, Calif. Clairvoyante Inc. has developed a new technology to balance color performance with power management in mobile displays. The PenTile Mode Control technology delivers a set of backlight control options for statically or dynamically selecting varying levels of power consumption and color purity.
Clairvoyante says it developed the PenTile Mode Control technology to address growing capabilities such as web browsing, navigation, e-mail access, and mobile TV in next-generation mobile devices that need varying levels of color saturation and power reduction to run effectively. The new solution offers a way to set a balance between color saturation and power efficiency in mobile devices, selectable by the user interface.
The initial features include three static modes that enable a user interface to control the amount of power reduction or color control, and one dynamic mode that uses dynamic backlight control (DBLC) to automatically analyze image content in order to provide variable power savings of 15 to 65 percent, said Clairvoyante. This gives display manufacturers the flexibility to select the appropriate balance of color purity and power reduction that best fits the application.
The technology supports three static backlight control modes Power Saver Mode, Pure Color Mode and Outdoor Mode all of which can be supported by driver chips that are currently available.
The PenTile Power Saver Mode enables a fixed power reduction of 50 percent and is optimized to display lifelike, natural-looking colors such as full-screen video at maximum power efficiency. This mode can be selected when content is dominated by natural colors such as video, or when the battery is running low and the user needs to conserve power at the expense of some pure color appearance, said Clairvoyante.
The PenTile Pure Color Mode offers a fixed 15 percent power savings and targets applications where content is dominated by bright, highly saturated colors such as web browsers or computer-generated graphics. This mode is suitable for extending battery life of portable devices like ultra-mobile PCs and mobile Internet devices.
PenTile Outdoor Mode is suitable for displaying images and text in outdoor settings with high ambient light where visibility is most important. This may enable transmissive panels to be used instead of transflective technology, said the company.
In the area of dynamic backlight control options, the PenTile Dynamic Power Optimization Mode combines the power-saving properties of PenTile RGBW technology with content-dependant power savings achieved through dynamic backlight control techniques to achieve a variable power savings of 15 to 65 percent. PenTile RGBW technology is also compatible with conventional dynamic backlight control from third parties.
Clairvoyante is demonstrating these new backlight control techniques, including a side-by-side comparison of PenTile Dynamic Optimization Mode, at the SID International Symposium, May 22-24.
Availability: Availability in products is expected in fourth quarter 2007.
Clairvoyante, Inc., 1-408-200-7300, www.clairvoyante.com