A report from Nikkei has revealed that Sony and Panasonic have ended their year old partnership in the field of OLED TVs. Instead the companies will turn their focus to 4K with increased attention. Sales of 4K TVs are on the rise, and some companies are working hard to bring affordable 2K and 4K TVs to the market. In another two years, we expect 4K to become mainstream and completely replace Full HD TVs in the mid-range and high-end markets.