Liquid crystal display device having particular electrodes
View Patent ↗A liquid crystal display device includes an array substrate including a pixel electrode which is disposed in each of pixels, a counter-substrate which is disposed to be opposed to the array substrate and includes a counter-electrode which is common to a plurality of the pixels, and a liquid crystal layer which is held between the array substrate and the counter-substrate. The pixel electrode includes a first major electrode portion having a strip shape, and the counter-electrode includes second major electrode portions each having a strip shape, the second major electrode portions being disposed in parallel to the first major electrode portion in a manner that the first major electrode portion is interposed between the second major electrode portions and that the first major electrode portion and the second major electrode portions are alternately arranged.
1. A liquid crystal display device comprising:
an array substrate comprising
a storage capacitance line extended in a row direction; and
a pixel electrode which is disposed in each of pixels, the pixel electrode comprising:
a first major electrode portion having a strip shape extended in a column direction; and
a first subelectrode portion which is positioned above the storage capacitance line and is electrically connected to the first major electrode portion;
a counter-substrate which is disposed to be opposed to the array substrate and comprises a counter-electrode which is common to the pixels, the counter-electrode comprising second major electrode portions each having a strip shape and a second sub-electrode portion; and
a liquid crystal layer which is held between the array substrate and the counter-substrate,
wherein:
the second major electrode portions are disposed in parallel to the first major electrode portion in a manner that the first major electrode portion is interposed between the second major electrode portions; and
the second sub-electrode portion is opposed to the first sub electrode portion and is electrically connected to the second major electrode portion.
2. The liquid crystal display device according to claim 1 , wherein:
the array substrate further comprises signal lines which are disposed along the column direction; and
the first sub-electrode portion is disposed equidistant from two signal lines which sandwich the first sub-electrode portion.
3. The liquid crystal display device according to claim 1 , wherein the second subelectrode portion is disposed on the boundary side between the first major electrode portion and the first sub-electrode portion.
4. The liquid crystal display device according to claim 1 , wherein:
the array substrate further comprises a first alignment film covering the pixel electrode;
the counter-electrode further comprises a second alignment film covering the counter-electrode; and
a first rubbing direction of the first alignment film and a second rubbing direction of the second alignment film are parallel to the column direction.
5. A liquid crystal display device comprising:
an array substrate comprising
a storage capacitance line extended in a row direction; and
a pixel electrode which is disposed in each of pixels, the pixel electrode comprising:
first major electrode portions each having a strip shape extended in a column direction; and
a first sub-electrode portion which is positioned above the storage capacitance line and is electrically connected to the first major electrode portions;
a counter-substrate which is disposed to be opposed to the array substrate and comprises a counter-electrode which is common to a plurality of the pixels, the counter-electrode comprising second major electrode portions each having a strip shape and a second sub-electrode portion; and
a liquid crystal layer which is held between the array substrate and the counter-substrate,
wherein
the second major electrode portions are disposed in parallel to the first major electrode portions in a manner that each of the first major electrode portions is interposed between the second major electrode portions and that the first major electrode portion and the second major electrode portion are alternately arranged, and
the second sub-electrode portion is opposed to the first sub electrode portion and is electrically connected to the second major electrode portion.
6. The liquid crystal display device according to claim 5 , wherein:
the array substrate further comprises signal lines which are disposed along the column direction; and
the first sub-electrode portion is disposed equidistant from two signal lines which sandwich the first sub-electrode portion.
7. The liquid crystal display device according to claim 5 , wherein the second subelectrode portion is disposed on the boundary side between the first major electrode portions and the first sub-electrode portion.
8. The liquid crystal display device according to claim 5 , wherein:
the array substrate further comprises a first alignment film covering the pixel electrode;
the counter-electrode further comprises a second alignment film covering the counter-electrode; and
a first rubbing direction of the first alignment film and a second rubbing direction of the second alignment film are parallel to the column direction.
9. A liquid crystal display device comprising:
an array substrate comprising a pixel electrode which is disposed in each of pixels, the pixel electrode comprising
a first major electrode portion having a strip shape extended in a column direction; and
a rectangular first sub-electrode portion which is electrically connected to the first major electrode portion;
a counter-substrate which is disposed to be opposed to the array substrate and comprises a counter-electrode which is common to a plurality of the pixels, the counter-electrode comprising second major electrode portions each having a strip shape and a second sub-electrode portion; and
a liquid crystal layer which is held between the array substrate and the counter-substrate,
wherein:
the second major electrode portions are disposed in parallel to the first major electrode portion in a manner that the first major electrode portion is interposed between the second major electrode portions, and
the second sub-electrode portion is opposed to the first sub electrode portion and is electrically connected to the second major electrode portion.
10. The liquid crystal display device according to claim 9 , wherein the array substrate further comprises signal lines which are disposed along the column direction; and
the first sub-electrode portion is disposed equidistant from two signal lines which sandwich the first sub-electrode portion.
11. The liquid crystal display device according to claim 9 , wherein the second subelectrode portion is disposed on the boundary side between the first major electrode portion and the first sub-electrode portion.
12. The liquid crystal display device according to claim 9 , wherein:
the array substrate further comprises a first alignment film covering the pixel electrode;
the counter-electrode further comprises a second alignment film covering the counter-electrode; and
a first rubbing direction of the first alignment film and a second rubbing direction of the second alignment film are parallel to the column direction.