The PVM-741 is a professional monitor with a 7.4" 960x540 OLED display, a direct replacement of the PVM-740. The monitor features a 10-bit panel driver, multi-format signal interfaces with two 3G/HD/SD-SDI input capability, 3G-SDI interface, 8-channel audio level meter, HDMI and more.

The PVM-741 will be released in October 2012, you can find more info over at Sony's site.

OLED type: 

7.4" 960x540 OLED