Liquid crystal display device and liquid crystal display apparatus using liquid crystal display device

A liquid crystal display device comprising:

• a first substrate having a plurality of pixel electrodes formed thereon in a matrix fashion;
• a second substrate having a common electrode formed thereon as facing the pixel electrodes with a specific gap;
• a liquid crystal filled in the gap;
• and
• a multi-layered optical film formed on the pixel electrodes and including:
• a first optical film that exhibits a first refractive index;
• a second optical film formed on the first optical film, the second optical film exhibiting a second refractive index higher than the first refractive index;
• a third optical film formed on the second optical film, the third optical film exhibiting a third refractive index lower than the second refractive index;
• a fourth optical film formed on the third optical film, the fourth optical film exhibiting a fourth refractive index higher than the third refractive index;
• and
• a fifth optical film formed on the fourth optical film, the fifth optical film exhibiting a specific resistance ranging from 1×109 Ωcm to 8×1012 Ωcm.

A liquid crystal display apparatus for displaying images on a screen comprising:

• a light source for emitting light;
• at least one liquid crystal display device for modulating the light for image displaying;
• and
• an optical component for directing the light emitted from the light source to the liquid crystal display device and the light modulated by the liquid crystal display device to the screen,
• wherein the liquid crystal display device includes:
• a first substrate having a plurality of pixel electrodes formed thereon in a matrix fashion;
• a second substrate having a common electrode formed thereon as facing the pixel electrodes with a specific gap;
• a liquid crystal filled in the gap;
• and
• a multi-layered optical film formed on the pixel electrodes and including:
• a first optical film that exhibits a first refractive index;
• a second optical film formed on the first optical film, the second optical film exhibiting a second refractive index higher than the first refractive index;
• and
• a third optical film formed on the second optical film, the third optical film exhibiting a specific resistance ranging from 1×109 Ωcm to 8×1012 Ωcm.

A liquid crystal display apparatus for displaying images on a screen comprising:

• a light source for emitting light;
• at least one liquid crystal display device for modulating the light for image displaying;
• and
• an optical component for directing the light emitted from the light source to the liquid crystal display device and the light modulated by the liquid crystal display device to the screen,
• wherein the liquid crystal display device includes:
• a first substrate having a plurality of pixel electrodes formed thereon in a matrix fashion;
• a second substrate having a common electrode formed thereon as facing the pixel electrodes with a specific gap;
• a liquid crystal filled in the gap;
• and
• a multi-layered optical film formed on the pixel electrodes and including:
• a first optical film that exhibits a first refractive index;
• a second optical film formed on the first optical film, the second optical film exhibiting a second refractive index higher than the first refractive index;
• a third optical film formed on the second optical film, the third optical film exhibiting a third refractive index lower than the second refractive index;
• a fourth optical film formed on the third optical film, the fourth optical film exhibiting a fourth refractive index higher than the third refractive index;
• and
• a fifth optical film formed on the fourth optical film, the fifth optical film exhibiting a specific resistance ranging from 1×109 Ωcm to 8×1012 Ωcm.

A multi-layered optical film for use in a liquid crystal display device having pixel electrodes arranged in a matrix fashion with a specific gap therebetween, the multi-layered optical film comprising:

• a first low refractive film that exhibits a first refractive index;
• a first high refractive film formed on the first refractive film, the first high refractive film exhibiting a second refractive index higher than the first refractive index;
• and
• a first dielectric film formed on the first high refractive film, the first dielectric film exhibiting a specific resistance ranging from 1×109 Ωcm to 8×1012 Ωcm,
• wherein the multi-layered optical film is formed on the pixel electrodes to prevent light to be incident below the pixel electrodes through the gap.