Laser diode driver (LDD) technology has evolved from driving DVD, CD and Blue-ray optical drives to include laser projection in smartphones, automotive head-up displays (HUDs) and pico projectors. Renesas has developed LDDs for RGB scanning laser projection systems and laser-based pico projectors. Automotive HUDs are benefiting from big innovations in MEMS projection systems and are now central to advanced driver assistance systems (ADAS) and safety. The latest laser scanned-MEMS projection systems can provide higher resolution images at a lower cost. Finally, Renesas' LDD product portfolio includes a push-pull oscillator used to reduce laser noise.