Light-transmitting substrate, optical film, polarizing plate and image display device
AssigneeFUJIFILM Corporation
InventorsHiroyuki YONEYAMA, Jun Watanabe
Life of this patent
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Abstract
A light-transmitting substrate has an uneven profile on at least one surface thereof, the light-transmitting substrate contains a thermoplastic resin and a flat translucent particle; a tilt angle of the uneven profile on at least one surface of the light-transmitting substrate has the following distribution: (a) an integral value of frequencies of from 0° to less than 1.0° is from 0% to less than 25%, (b) an integral value of frequencies of from 1.0° to less than 10° is from 60% to less than 100%, and (c) an integral value of frequencies of 10° or more is from 0% to less than 25%, and an average distance between trough and crest in the uneven profile is from 10 to 300 μm.
Claims16
A light-transmitting substrate having an uneven profile on at least one surface, wherein
- the light-transmitting substrate comprises a thermoplastic resin and a flat translucent particle;
- a tilt angle of the uneven profile on at least one surface of the light-transmitting substrate has the following distribution:
- (a) an integral value of frequencies of from 0° to less than 1.0° is from 0% to less than 25%,
- (b) an integral value of frequencies of from 1.0° to less than 10° is from 60% to less than 100%, and
- (c) an integral value of frequencies of 10° or more is from 0% to less than 25%,
- and
- an average distance between trough and crest in the uneven profile is from 10 to 300 μm.
Dependencies are inferred from the claim text.