Actually this screen has been lying on my desk for a long time, I got it in Hong Kong. Actually it is exactly the screen used in the Hong Kong Metro. I got two of them, one has some LEDs knocked off, the other is intact. The screen is self-scanned, means that it can be controlled by slower MCUs without introducing lot of flickering.
Was planning to use with Raspberry Pi. HVGA resolution, made by Tianma, uses SPI for configuration and DPI for pixel data. This screen actually has its own controller and GRAM. There are 2 modes provided: RGB pass-through, and RGB async. I thought pass-through should be better, however it turns out that it is very strict about timing, and I see very serious tearing effect (why?). Async mode works far better.
I have got this for some while. But I had fairly bad luck driving it previously. But it turns out it was due to a problem of pin multiplexing on my development board. After fixing that, this screen is working fine.