There are rumors (coming from a leaked internal Sony document) that Sony's new OLED TV will be called the Sony KDL-ZX. No more information is available - although interestingly they say it's the KDL-ZX series, so maybe Sony will introduce several new OLEDs?

Sony OLED TV prototypeSony 27-inch OLED prototype

Sony were planning a 27" OLED TV, and later on showed new 21" prototypes, so it could be either, or both.

Atomic Force Microscopy for next-gen OLED processesAtomic Force Microscopy for next-gen OLED processes