A list of current display drivers:

ED060SC4      - E-Ink display
framebuffer   - Supports any non-palletized, non-bitpacked color display with a framebuffer
HX8347D       - Mid-sized color LCD displays eg RGB565 320x240
ILI9320       - Mid-sized color LCD displays eg RGB565 320x240
ILI9325       - Mid-sized color LCD displays eg RGB565 320x240
ILI9341       - Mid-sized color LCD displays eg RGB565 320x240
ILI9342       - Mid-sized color LCD displays eg RGB565 320x240
ILI93xx       - Mid-sized color LCD displays eg RGB565 320x240 (attempt at a common driver)
ILI9481       - Mid-sized color LCD displays eg RGB565 320x240
LGDP4532      - Mid-sized color LCD displays eg RGB565 320x240
Nokia6610GE8  - Small (130x130) 12bit color LCD
Nokia6610GE12 - Small (130x130) 12bit color LCD (untested)
PCD8544       - Small monochrome LCD
PCF8812       - Small monochrome LCD
R61505U       - Mid-sized color LCD displays eg RGB565 320x240
RA8875        - Mid-sized color LCD displays eg RGB565 320x240
S6D1121       - Mid-sized color LCD displays eg RGB565 320x240
SPFD54124B    - Mid-sized color LCD displays eg RGB565 320x240
SSD1289       - Mid-sized color LCD displays eg RGB565 320x240
SSD1306       - Small monochrome LCD
SSD1331       - Small hardware accelerated OLED display RGB565 96x64
SSD1351       - Mid-sized color LCD displays eg RGB565 320x240
SSD1848       - Small grayscale LCD eg 2-Bit 130x130
SSD1963       - Mid-sized color LCD displays eg RGB565 320x240
SSD2119       - Mid-sized color LCD displays eg RGB565 320x240
ST7565        - Small monochrome LCD
STM32LTDC     - STM32 ART graphics STM32F4 and STM32F7 series CPU's
TestStub      - NULL driver just to test compile
TLS8204       - Small monochrome LCD
QImage        - Driver that allows rendering into a QImage object (of the Qt framework)
uGFXnet       - Remote Network display (in drivers/multiple/uGFXnet directory)
Win32         - Microsoft Windows (in drivers/multiple/Win32 directory)
X             - X Windows (Xlib) (in drivers/multiple/X directory)
