We have been looking for a display like this for a long time - its only 1.5 in diagonal, but has a high density of 220 ppi, 240 x 240 pixels display with full angle view. It looks similar to our 1.44 display with 128 x 128 pixels, but has 4x as many pixels and looks great at any angle. We have already seen displays of this caliber in smartwatches and small electronic devices, but they always had a MIPI interface. Finally we found one that is SPI and has a friendly display driver, so it works with any microcontrollers or microcomputers! This pretty little display breakout is the best way to add a small, colorful and very bright display to any project. Because the display communicates via 4-wire SPI and has its own pixel-addressable frame buffer, it can be used with any type of microcontroller. Even with a very small one with little memory and few available pins! The 1.54 display has 240x240 16-bit full-color pixels and is an IPS display, so the color looks good up to 80 degrees off-axis in any direction. The TFT driver (ST7789) is very similar to the popular ST7735, and our Arduino library supports it well. Our breakout has soldered the TFT display (it uses a sensitive flex circuit port) as well as an ultra-low dropout 3.3V regulator and a 3/5V level shifter, so you can use it with 3.3V or 5V current and logic. Since we had some space, we put a microSD card holder so you can easily load full-color bitmaps from a FAT16/FAT32 formatted microSD card. The microSD card is not included. Of course, we wouldnt just give you a data sheet and good luck! leave behind. - We have a full open source graphics library (https://learn.adafruit.com/adafruit-1-3-and-1-54-240-x-240-wide-angle-tft-lcd-displays)