Thanks for the tips Tom!
I need it to work offline and with no PC near, so using ethernet wouldnt be a choice
Anyway, i have found a TFT display which uses Solomon´s SSD1926 chipset, which is capable of handling JPEG images.
Link for it is : This product is no longer available.
Chipset specifications: Solomon Systech (International) Limited
I will see if i can find it somewhere else than alibaba.
BR