Hitachi unveiled a new 4.5" a-Si based IPS LCD display with 329ppi (720x1280). The company says that using amorphous silicon instead of an LTPS backplane means that the new display is cheaper then their previous IPS displays - with only a slight drop in performance (a lower contrast ratio).
Last month we heard that Hitachi, Sony and Toshiba signed an agreement to merge their small/medium display business. The new business venture will invest in OLED R&D and according to the companies, they consider OLED to be the core technology for next-gen small/medium displays. We do not know if Hitachi's new technology is relevant for OLEDs as well.