Why do the organic light-emitting diode (OLED) TVs from Sony measure only 11 inches (28cm) across?
Because large OLEDs are really tough to make. While praising the OLED format during a press conference here with a few reporters at the Consumer Electronics Show on Monday morning, Sony executives acknowledged that producing large OLED screens in large quantities remains a work in progress. OLEDs now are mostly used in mobile phones, which have small screens. “The difficult challenge with the larger screen sizes is improving the yields. There are a lot of complications, many more than with LCD,” said Katsumi Ihara, executive deputy president and head of Sony’s Consumer Products Group. “The yields tend to be low. That is the biggest challenge.” The company declined to provide dates for when it might provide larger versions of the TV for sale. Sony is showing off a 25-inch diameter OLED prototype at the show this year, but it’s the same size as a prototype the company showed last year. Ihara added that Sony may seek collaborators in expanding OLED. Sony and Samsung have a joint venture i
