Image light generation module and image display device

An image light generation module, comprising:

• a first display element configured to emit first image light;
• a second display element configured to emit second image light of color light different from color light of the first image light;
• a third display element configured to emit third image light of color light different from the color light of the first image light and the second image light;
• a combining prism configured to emit combined image light combined from the first image light, the second image light, and the third image light;
• a first gap defining member configured to define a first gap between the first display element and the combining prism;
• a second gap defining member configured to define a second gap between the second display element and the combining prism;
• and
• a third gap defining member configured to define a third gap between the third display element and the combining prism, wherein
• at least one of the first gap, the second gap, or the third gap is different in size from another of the gaps.