Liquid crystal display device and electronic apparatus
View Patent ↗Disclosed herein is a liquid crystal display device in which a plurality of electrodes is provided on one of a plurality of substrates with a liquid crystal layer interposed therebetween and liquid crystal molecules configuring the liquid crystal layer are driven by an electric field generated between the pair of electrodes, wherein the one substrate has an alignment film which contacts the liquid crystal layer to regulate an alignment direction of the liquid crystal molecules and is provided so as to cover at least one of the pair of electrodes, and wherein the thickness of the alignment film is larger than that of at least one of the electrodes contacting the alignment film.
1. A liquid crystal display device in which a plurality of electrodes is provided on one of a plurality of substrates with a liquid crystal layer interposed therebetween and liquid crystal molecules configuring the liquid crystal layer are driven by an electric field generated between a pair of the electrodes,
wherein the one substrate has an alignment film which contacts the liquid crystal layer to regulate an alignment direction of the liquid crystal molecules and is provided so as to cover at least one of the pair of electrodes,
wherein a thickness of the one electrode contacting the alignment film is 30 nm to 55 nm, and a thickness of the alignment film is 80 nm to 125 nm, and
wherein an upper surface of the alignment film includes a step difference in areas above the plurality of electrodes, and the step difference is less than the thickness of the one electrode contacting the alignment film.
2. The liquid crystal display device according to claim 1 , wherein a sum of the thickness of the one electrode contacting the alignment film and the thickness of the alignment film formed thereon less the thickness of the alignment film is less than or equal to 15 nm.
3. The liquid crystal display device according to claim 1 ,
wherein the one electrode contacting the alignment film has a plurality of band-shaped portions electrically connected to each other, and
wherein the other electrode of the pair of electrodes includes a plane region in which the one electrode is formed, has a larger area than the one electrode, and is opposed to the one electrode with an insulating layer interposed therebetween.
4. The liquid crystal display device according to claim 3 , wherein the one electrode has a connection portion for connecting one end of each of the plurality of band-shaped portions with one another, and
wherein the other end of each of the plurality of band-shaped portions is an open end.
5. The liquid crystal display device according to claim 3 , wherein curved portions, which become further away from a central line of a central portion with increasing proximity to both ends of the band-shaped portions, are formed at the both ends of the band-shaped portions.
6. An electronic apparatus comprising the liquid crystal display device according to claim 1 .
7. The liquid crystal display device according to claim 1 , wherein the at least one of the pair of electrodes is directly connected to a capacitive electrode,
wherein a capacitive line is formed below the capacitive electrode, the capacitive electrode and capacitive line forming a storage capacitor, and
wherein the capacitive electrode is directly connected to a drain of a TFT driving element.
8. The liquid crystal display device according to claim 1 , wherein the one electrode contacting the alignment film includes a plurality of band-shaped electrodes having gaps therebetween, and the alignment film is provided in the gaps.