Liquid crystal display having microlens and manufacturing process thereof

A liquid crystal display comprising:

• a first substrate comprising a transparent insulating substrate, lens formed on said transparent insulating substrate, and a flattening layer formed on said lens;
• a second substrate comprising another transparent insulating substrate on which a plurality of electrodes are formed;
• and
• a liquid crystal layer disposed between said flattening layer of said first substrate on one side and said second substrate on another side;
• wherein said first substrate has a function of refracting a light in accordance with a difference between a refractive index of said lens and that of said flattening layer,
• wherein each lens has a sectionally convex shape including tapered portions protruding from the transparent insulating substrate,
• wherein each lens has sectionally triangular shapes formed of two tapered portions, and
• wherein the lens each having the sectionally triangular shapes have a refractive index smaller than that of the flattening layer, and are arranged discontinuously so as to be coincident to positions where the electrodes are formed.

A liquid crystal display comprising:

• a first substrate comprising a transparent insulating substrate, lens formed on said transparent insulating substrate, and a flattening layer formed on said lens;
• a second substrate comprising another transparent insulating substrate on which a plurality of electrodes are formed;
• and
• a liquid crystal layer disposed between said flattening layer of said first substrate on one side and said second substrate on another side;
• wherein said first substrate has a function of refracting a light in accordance with a difference between a refractive index of said lens and that of said flattening layer,
• wherein each lens has a sectionally trapezoidal shape protruding from the transparent insulating substrate and including a flat portion and two tapered portions each adjacent to two ends of said flat portion, and
• wherein the lens each having a sectionally trapezoidal shape have a refractive index larger than that of the flattening layer, and are arranged continuously so that the tapered portions of the adjacent lens are coincident to positions where the electrodes are formed.