The first OLED displays to be used in mobile phones arrived in 2003 – almost all of them flip phones. And there’s a simple reason for that, the displays were tiny and were placed as the secondary screen on the outside of the flip.
Some of them were able to render 256 colors, though others were monochrome. Phones like the Samsung E700 and the LG G7030 had such color displays with 96x64px resolution, while the inner screen were 128x160px that could deliver 65K colors (16-bit).
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