Method of producing micro-lenses and image display device with the same

A method of producing micro-lenses used in an image display device not requiring positioning of the micro-lenses and an image display device provided with the micro-lenses capable of displaying images of high luminance and a high contrast. The method includes the steps of: forming a TFT substrate having a plurality of pixel electrodes, a switching element, and light blocking layers having a predetermined apertures covering clearances of the pixel electrodes on a first light transmitting type substrate; forming a counter substrate having counter electrodes on a second light transmitting type substrate; arranging the TFT substrate and the counter substrate to face each other and bonding peripheries of the substrates; forming a focusing layer containing a photosensitive material on a surface facing the bonding surface of the counter substrate; irradiating light from the TFT substrate side to expose portions of the focusing layer facing the apertures of the light blocking layer; and exposing unexposed portions of the focusing layer.