This is the serial backpack, not to be confused with a serial handbag, for graphic LCDs, providing a simple serial interface to a full range of controls.
Sometimes you need a graphic LCD. And sometimes you need a GIGANTO 128x160 PIXEL GRAPHICAL LCD. This is the latter, with pretty white pixels against a nice blue background.
These are tiny, sharp, and most impressive OLED monochrome displays! Just about 1" diagonal, made of 128x32 individual white OLED pixels, each one is turned on or off by the controller chip.
This is similar to other 16x2 character LCDs that you've seen before but with one vibrant difference: The backlight is actually an RGB LED.