Liquid crystal display

Claim 2

A liquid crystal display device, comprising: a first substrate and a second substrate processed for vertical alignment; a liquid crystal having a negative dielectric constant anisotropy and being sandwiched between the first and second substrates; a plurality of color filters on the first substrate, each of the color filters having at least a first depression formed therein; a common electrode on the color filters, the common electrode having a surface facing to the second substrate and a plurality of second depressions corresponding to the first depressions of the color filters; and a dielectric material filling up the second depressions of the common electrode, the dielectric material having a dielectric constant smaller than the dielectric constant of the liquid crystal, wherein the dielectric material has a substantially flat surface level with the surface of the common electrode.

Claim 3

The liquid crystal display device as claimed in claim 1 , further comprising photodefined spacers disposed between the first and second substrates for defining the gap between the two substrates, and the dielectric material is the same as the material of the photodefined spacers.

Claim 4

The liquid crystal display device as claimed in claim 1 , further comprising a vertical alignment film formed on each substrate, and the second depressions are filled up with the material of the vertical alignment film formed on the first substrate.

Claim 5

A liquid crystal display device comprising: a first substrate and a second substrate processed for vertical alignment; a liquid crystal having a negative dielectric constant anisotropy and being sandwiched between the first and second substrates; a plurality of color filters on the first substrate, each of the color filters having at least a first depression formed therein, each of the first depressions extending in a direction, the first depressions being arranged in parallel to one another with a predetermined pitch among them; a common electrode on the color filter layer, the common electrode having a plurality of second depressions corresponding to the first depressions of the color filter layer; a dielectric material filling up the second depressions of the common electrode, the dielectric material having a dielectric constant smaller than the dielectric constant of the liquid crystal, wherein the dielectric material forms a plurality of first protrusions over the second depressions; and an array of second protrusions, depressions or slits provided on the second substrate, each extending in the direction, the second protrusions, depressions or slits being arranged in parallel to one another with the predetermined pitch among them.

Claim 6

A liquid crystal display device comprising: a first substrate and a second substrate processed for vertical alignment; a liquid crystal having a negative dielectric constant anisotropy and being sandwiched between the first and second substrates; a plurality of color filters on the first substrate, each of the color filters having at least a first depression formed therein, each of the first depressions extending in a direction, the first depressions being arranged in parallel to one another with a predetermined pitch among them; a common electrode on the color filter layer, the common electrode having a plurality of second depressions corresponding to the first depressions of the color filter layer; a dielectric material filling up the second depressions of the common electrode, the dielectric material having a dielectric constant smaller than the dielectric constant of the liquid crystal, wherein the dielectric material forms a plurality of first protrusions over the second depressions; and an array of second protrusions, depressions or slits provided on the second substrate, each extending in the direction, the second protrusions, depressions or slits being arranged in parallel to one another with the predetermined pitch among them.

Claim 7

The liquid crystal display device as claimed in claim 4 , further comprising photodefined spacers are formed between the first and second substrates for defining the gap between the two substrates, and the dielectric material is the same as the material of the photodefined spacers.

Claim 8

The liquid crystal display device as claimed in claim 4 , further comprising a vertical alignment film formed on each substrate, and the second depressions are filled up with the material of the vertical alignment film formed on the first substrate.

Claim 9

A liquid crystal display device as claimed in claim 4 , wherein the first depressions of the color filter layer are offset by a half of the predetermined pitch from the second protrusions, depressions or slits of the second substrate.

Claim 10

A liquid crystal display device as claimed in claim 7 , wherein pixel electrodes are formed on the second substrate, and the predetermined pitch is equal to an integral submultiple of an arrangement pitch of the pixel electrodes.

Claim 11

A liquid crystal display device as claimed in claim 4 , wherein the first depressions of the color filter layer are bent in zigzag at intervals of a predetermined cycle, and the second protrusions, depressions or slits provided on the second substrate are bent in zigzag at intervals of the predetermined cycle.

Claim 14

The method as claimed in claim 10 , wherein the filled second depressions have a substantially flat surface level with the surface of the first substrate.

Claim 15

The method as claimed in claim 10 , the material of the spacers forms protrusions over the second depressions.