Reference
The article provides an in-depth look at OLED display technology, focusing on its ability to achieve deep black levels and superior contrast compared to LCDs, especially in low ambient light conditions. It also delves into the communication protocol, specifically the 3-wire SPI interface, highlighting its efficiency and minimal I/O occupation.
Communication Protocol Description
So it's designed to be driven via 3-wire SPI interface, which is a easier and small number I/O occupied way.
Principle
An OLED display works without a backlight. Thus, it can display deep black levels and can be thinner and lighter than a liquid crystal display (LCD). In low ambient light conditions such as a dark room an OLED screen can achieve a higher contrast ratio than an LCD.
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