LCD having an alignment film comprising sintered carbon
View Patent ↗To provide a liquid crystal device using carbon films capable of aligning liquid crystal molecules simultaneously with deposition, a manufacturing apparatus of the liquid crystal device, a manufacturing method of the liquid crystal device and a forming method of an alignment film. The liquid crystal device comprises: substrates 1 a and 1 b opposing to each other and including electrodes; an optical cell formed between the opposing electrodes; liquid crystal molecules 2 filled in the optical cell; carbon films 5 a and 5 b deposited adhered on a side of at least one of the substrates 1 a and 1 b , which is exposed to the liquid crystal molecules 2 , in order to align the liquid crystal molecules 2.
1. A liquid crystal device, comprising:
substrates opposing to each other, at least one of which includes an electrode;
an optical cell formed between said substrates;
liquid crystal molecules filled in said optical cell; and
a carbon film deposited on a side of at least one of said substrates, which is exposed to said liquid crystal molecules, to align said liquid crystal molecules, wherein said carbon film comprises an alignment property imparted by sputter depositing a sintered carbon in a magnetic field and inert gas atmosphere to form said carbon film.
2. A liquid crystal device according to claim 1 , wherein said inert gas is He, Ne, Ar, Kr, Xe or a mixture of any thereof.
3. A liquid crystal device according to claim 1 , wherein said carbon film has a thickness of 250 nm or less.
4. A liquid crystal device according to claim 2 , wherein said carbon film has a thickness of 250 nm or less.
5. A liquid crystal device according to claim 1 , wherein the substrates are formed using an alkaline glass material.
6. A liquid crystal device according to claim 1 , wherein the substrates are formed using a nonalkaline glass material.
7. A liquid crystal device according to claim 1 , wherein the electrode is formed using a transparent conductive material.
8. A liquid crystal device according to claim 1 , further comprising spacers disposed between the substrates.
9. A liquid crystal device according to claim 1 , further comprising polarizing plates disposed adjacent to the substrates.
10. A liquid crystal device according to claim 1 , further comprising a color filter.
11. A liquid crystal device according to claim 1 , further comprising a backlight device.
12. A liquid crystal device according to claim 2 , wherein said carbon film has a thickness in a range of about 0.3 nm to about 100 nm.