Image source, display device, head up display apparatus and transportation equipment

A display device, comprising:

• an image source component, configured to emit image light;
• a refractor, arranged on a light exiting side of the image source component, and configured to change an optical distance of at least a part of the image light, so as to change an image distance of at least a part of a virtual image formed by the image light;
• and
• a processing portion, arranged on a light exiting side of the refractor, and configured to enable at least part of the image light to propagate to the eyebox, wherein the at least part of the image light processed by the processing portion comprises refracted light formed by the image light which is emitted by the image source component and then emitted from the refractor;
• the display device comprises an image source, the image source comprises the image source component and a light compensation component, and the image source component comprises a light modulation layer;
• the light compensation component is configured to emit light-source light, the light-source light is incident into the light modulation layer, and the light modulation layer is configured to convert the incident light-source light into the image light;
• the light compensation component is configured to cause the light-source light to be incident onto a light incident surface of the light modulation layer with at least one refraction angle;
• and
• the refraction angle is an included angle between the light-source light and a normal line of the light incident surface of the light modulation layer;
• the image source is configured to perform light compensation on the display device, and the refractor is configured to refract the image light and then emit the refracted light;
• a first refraction of the light-source light emitted by the light compensation component at least partially offsets a second refraction of the image light caused by the refractor.