US5044733A
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Super twisted nematic liquid crystal display device having the standard deviation of the spherical grains being not more than 3% and the dispersion quantity of the spherical grains being 100-200 grains/mm2
Abstract A super twisted nematic type liquid crystal display device includes two of substrates, at least one of which is made of a plastic film, transparent electrode films disposed on each inner face of the two of the substrates, a plurality of spacers dispersed between the two of the substrates for maintaining the two of the substrates at a predetermined space and a liquid crystal enclosed between said substrates. The spacers are of spherical grains, a standard deviation of a distribution with respect to diameters of the spherical grains is not more than 3.5% of an average diameter of the spherical grains, a dispersion quantity of the spherical grains between said substrates is 100 to 200 grains/mm 2 , and the liquid crystal has a twisted angle of 180° to 270° with respect to liquid crystal molecules thereof.
A super twisted nematic type liquid crystal display device, comprising: two of substrates, at least one of which is made of a plastic film; transparent electrode films disposed on each inner face of the two of said substrates; a plurality of spacers dispersed between said substrates for maintaining the two of said substrates at a predetermined space, said spacers being of spherical grains, a standard deviation of a distribution with respect to diameters of said spherical grains being not more than 3.5% of an average diameter of said spherical grains, a dispersion quantity of said spherical grains between said substrates being 100 to 200 grains/mm 2 ; and a liquid crystal enclosed between said substrates and having a twisted angle of 180° to 270° with respect to liquid crystal molecules thereof.
Claim 2
Dependent Claim
131 words
A super twisted nematic type liquid crystal display device, comprising: two of substrates, at least one of which is made of a plastic film; transparent electrode films disposed on each inner face of the two of said substrates; a plurality of spacers dispersed between said substrates for maintaining the two of said substrates at a predetermined space, said spacers being of spherical grains, a standard deviation of a distribution with respect to diameters of said spherical grains being not more than 3.5% of an average diameter of said spherical grains, a dispersion quantity of said spherical grains between said substrates being 100 to 200 grains/mm 2 ; and a liquid crystal enclosed between said substrates and having a twisted angle of 180° to 270° with respect to liquid crystal molecules thereof.
Claim 3
Dependent Claim
23 words
The liquid crystal display device according to claim 1, in which said spherical grain is made of plastics, glass fiber or metal oxide.
Claim 4
Dependent Claim
28 words
The liquid crystal display device according to claim 1 or 2, in which a standard deviation of the diameters of said spherical grains is 0.3 μm or less.