Microdisplay//Display

hi, everyone, I was looking for a microdisplay, well I´ve found some of them, but the price it is not so low, I´ve also tried some miniprojectors but the resolution was not what I was searching for..... I would like to mirror the PC screen on some device within 2,3,4..... until 6 inches, the distance between the device and the wall must be short, something like 15,20, until 40 cm. Does anyone know some display or something similar that I could use? Something cheap, thin and with HDMI or VGA input. Please....... I´ve been searching and searching, but I did not find what I looking for.