Electronic device including structure for adjusting distance between lenses

A head mounted display device comprising:

• a first lens support coupled to a first lens aligned with an eye of a user when the head mounted display device is worn by the user;
• a second lens support movable with respect to the first lens support and coupled to a second lens aligned with another eye of the user when the head mounted display device is worn by the user;
• a first moving member coupled to the first lens support to move together with the first lens support;
• a second moving member coupled to the second lens support to move together with the second lens support;
• a plurality of friction members extending in a moving direction of the first lens support and the second lens support to penetrate the first moving member and the second moving member and movable with respect to each other;
• and
• at least one deforming member disposed between the plurality of friction members and configured to press each of the plurality of friction members in a direction perpendicular to the moving direction.