Sharp has announced on Wednesday that it will start to sell an 32-inch ultrathin IGZO 4K LED display with  a Full HD 3,840x2,160 resolution on February 15, 2013. and it has a production target of 1,500 units a month. No pricing was given.

The most  salient feature is the use of IGZO technology -- something Apple has had its eye on for the iPad because IGZO can yield very-high-resolution yet thin displays. Including the chassis, the model PN-K321 display is 35mm thick and compatible with DisplayPort and HDMI connectors.

Sharp also plans to bring out denser small displays. Last month the company said it has begun production of a 5-inch 1,080x1,920 display.

That's a pixel density of 443 pixels per inch. By comparison, Apple's iPhone 5 has a pixel density of 326 pixels per inch.