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CMEL shows 25-inch paper-thin OLED display

At a Japanese tech exhibition, a Taiwanese display maker unveils a prototype larger than market leader Sony's.

A Taiwanese display maker just one-upped Sony on the Japanese electronics giant's home turf.

At the FPD International Exhibition in Japan Wednesday, Chi Mei EL, or CMEL, unveiled its OLED (organic light-emitting diode) display that measures less than a millimeter thick and 25 inches diagonal. Sony has a prototype of the same thinness, but it's just 11 inches diagonal.

CMEL's 25-inch OLED panel Digitimes

CMEL's prototype display resolution is WXGA, or 1,366x768 pixels, and shows 16.7 million colors. While it's not yet an actual product, it shows that the race for OLED supremacy is heating up.

Samsung has shown a 12.1-inch OLED prototype, and Toshiba and Panasonic are also working on prototypes for monitors or TVs. In addition, there are several companies that make smaller OLED displays for mobile and handheld devices already, but Sony is the only one with an OLED TV on the market, its 11-inch XEL-1.

The technology is still not ready for mass production, and the price of an OLED TV, using Sony's 11-inch as an example, at $2,500 is still prohibitive for the average consumer.