In February during the Goldman Sachs Conference, Tim Cook described OLED displays as awful. "If you buy things online, you should think twice before you depend on the color of the OLED display. The Retina display is twice as bright as an OLED display." Cook added that "Some people use OLED displays, but the color saturation is awful." While Apple's CEO downplayed OLED, the fact is that Apple has a great number of patents covering the improvement of OLED displays and in February they recruited a former senior researcher at LG Display to work on display technology. In today's patent application published by the US Patent and Trademark Office we learn that Apple is working to integrate thermal sensors into displays in order to control color. The advantage to OLED that Apple may not be able to ignore is that they can be flexible for future wearable computers like a computer band or iWatch.