Image display device

An image display device for an electronic device, the image display device comprising:

• a first light source emitting a first light beam;
• a second light source emitting a second light beam;
• an image display layer located over the first light source and the second light source, wherein the image display layer comprises plural pattern sections;
• and
• a refractive structure layer arranged between the first light source, the second light source and the image display layer, wherein the first light beam or the second light beam is refracted by the refractive structure layer and guided to the image display layer, wherein the refractive structure layer has an optical axis and a reference plane, and the reference plane is perpendicular to the optical axis,
• wherein when the image display device is in a first usage state and the first light beam is irradiated on the refractive structure layer, there is a first angle between the first light beam and the reference plane, and the first light beam is guided to a first pattern section of the plural pattern sections, so that a first image is displayed on the image display layer, wherein when the image display device is in a second usage state and the second light beam is irradiated on the refractive structure layer, there is a second angle between the second light beam and the reference plane and the second light beam is guided to a second pattern section of the plural pattern sections, so that a second image is displayed on the image display layer, wherein the first angle and the second angle are different,
• wherein there is a distance X between the light source and the image display layer, and a long side of each pattern section has a length Y, wherein X≥1/3Y.