Patent ID: 6958790

Claim:
A liquid crystal display apparatus comprising: a light conductor plate; a liquid crystal cell arranged on a front surface side of the light conductor plate; a light source arranged on a side surface of the light conductor plate so as to light the liquid crystal cell from a back surface side thereof; and two light condensing plates disposed between the light conductor plate and the liquid crystal cell; wherein said light conductor plate has an incident surface for a light from the light source, a light emitting surface for emitting the input light to the liquid crystal cell, and a plurality of dots constituted by small projecting portions or small recess portions for changing a moving direction of the light from the incidence surface toward a direction of the light emitting surface, said dots being formed in at least one of the light emitting surface and a surface of the light conductor plate opposite to the light emitting surface with each of said dots having a height or depth within a range of 2 to 100 μm, an area within a range of 0.2 to 0.000025 square mm and an angle of inclination of a cross section within a range of 7 to 43 degrees.