As more electronic devices with display are targeted for both indoor and outdoor uses (e.g. cameras, telephones, music players), it becomes increasingly important to solve the problem of contrast of the display under strong external lighting, more particularly under sunlight. In such conditions, the eye has difficulty discriminating the light emitted by the display from the light reflected from the device and surrounding. Increasing the contrast thus consists basically in making sure that the light emitted by the display dominates any other surrounding light reaching the observer. Undesired light from the display itself could be residual light emitted from “off” (or dark) pixels, or ambient light reflected on or within the display.