razor-thin OLED TVs and vibrant AMOLED screens, but as Philips keeps reminding us, the organic diodes are good for more than displays -- they also make a fancy light bulb, too. This week, the company took the wraps off the latest advance in that direction: a bright-white OLED module that takes alternating current. Philips says that up until now, OLED technology required low-power DC voltage, which necessitated costly switching mechanisms built into such products in turn, but now they've got panels that sip fresh-squeezed AC juice directly from the wall. Now, it's just a question of when they'll be bright and cheap enough to be remotely worth your while. PR after the break.