Here at CES 2014, its all 4K, all the time. Budget TV maker TCL has just revealed a curved, 55-inch 4K model of its own, claiming the arc angle is the same as your retina for a truer picture that minimizes eye strain. Were not quite sure we follow that logic, but if flat is more your thing, the Chinese company is also flaunting an ultra-thin 55-inch OLED model, claiming it has a wider color gamut, better contrast and a faster refresh rate.