LED drivers for smaller panels

Himax's white LED drivers were developed by Himax Analogic, Inc., a Himax subsidiary focusing on analog semiconductor solutions. The HA7305 is a white LED driver with 4.5V to 24V input voltage range and up to 44V output voltage; it drives up to 80 LEDs at 90% efficiency. The built-in LED balance control circuitry offers stable and uniform current in and between channels with less than 3% inaccuracy. Moreover, the HA7305 embeds patented PWM (Pulse Width Modulation) dimming control technology and protection features including over voltage, over current, over temperature and under voltage lockout protections.

Following the previously launched white LED drivers for smaller panels, HA7305 presents a milestone for Himax's white LED driver line to penetrate into larger panels, namely netbook and notebook applications. Looking forward, Himax expects to launch an integrated white LED driver with power management function at around the end of 2009, and will continue to expend its white LED driver offerings suitable for monitor and TV applications.

The lawsuit claimed that the United Kingdom firm's quantum dot technology infringes upon five seminal quantum dot patents held by Nanosys. In the settlement, Nanoco agreed to terminate its current U.S. business for its core-shell quantum dots. Those quantum dots were sold in the U.S. by its U.S. distributor, Sigma-Aldrich under the name Lumidots. In the settlement, Nanoco did not admit that the asserted patents are either infringed or valid. Additional terms of the settlement were not disclosed.