Liquid crystal display device in which display of off state reflected light is suppressed
View Patent ↗According to one embodiment, a liquid crystal display includes a first substrate, a second substrate including a first color filter, located in an area corresponding to first to fourth color pixels, and having an aperture in an area including the second and third color pixels, a second color filter located in an area corresponding to the second color pixel, a third color filter located in an area corresponding to the third color pixel, and a black matrix extending and partitioning the first to fourth color pixels, and a liquid crystal layer held between the substrates. The black matrix includes portions extending on the first color filter, and portions extending on the first color filter between the first and second color pixels and between the third and fourth color pixels.
1. A liquid crystal display device comprising:
a first substrate including pixel electrodes corresponding to a first pixel, a second pixel, a third pixel and a fourth pixel arranged in an order mentioned along a first axis;
a second substrate including a first color filter, a second color filter, a third color filter, and a black matrix layer, the first color filter extending along the first axis and along a second axis perpendicular to the first axis, the first color filter located in an area corresponding to the first to fourth pixels, and having an aperture formed in an area including the second and third pixels, the second color filter located in the aperture in an area corresponding to the second pixel, the third color filter located in the aperture in an area corresponding to the third pixel, the black matrix layer extending along the first and second axes and partitioning the first to fourth pixels; and
a liquid crystal layer held between the first and second substrates,
wherein the black matrix layer includes portions extending on the first color filter along the first axis, and portions extending on the first color filter along the second axis between the first and second pixels and between the third and fourth pixels; and
the first color filter is formed into a grid-like shape having the aperture.
2. The liquid crystal display device of claim 1 , wherein the black matrix layer further includes portions extending on the second color filter along the second axis between the first and second pixels and between the second and third pixels.
3. The liquid crystal display device of claim 1 , wherein the first color filter is a green or blue filter.
4. The liquid crystal display device of claim 1 , wherein the portions of the black matrix layer extending along the first axis have a narrower width than the portions of the black matrix layer extending along the second axis.
5. The liquid crystal display device of claim 1 , wherein the first substrate includes a common electrode opposing the pixel electrodes.
6. The liquid crystal display device of claim 1 , wherein
the first to third color filters have respective first surfaces close to the first substrate, and respective second surfaces opposite to the first surface; and
the black matrix layer includes a portion stacked on the first surface of the first color filter, and portions contacting the second surfaces of the second and third color filters.
7. The liquid crystal display device of claim 6 , wherein the portion of the black matrix layer stacked on the first surface is smaller than portions of the black matrix layer contacting a third surface parallel to the second surfaces.
8. The liquid crystal display device of claim 1 , wherein
the first to third color filters have respective first surfaces close to the first substrate, and respective second surfaces opposite to the first surface; and
the black matrix layer includes portions stacked on the first surfaces of the first and second color filters, and a portion contacting the second surface of the third color filter.
9. The liquid crystal display device of claim 8 , wherein the portions of the black matrix layer stacked on the first surface are larger than a portion of the black matrix layer contacting a third surface parallel to the second surface.
10. A liquid crystal display device comprising:
a first substrate including switching elements and pixel electrodes electrically connected to the switching elements;
a second substrate including an insulating substrate, a first color filter formed on a surface of the insulating substrate opposing the first substrate, a second color filter separate from the first color filter, a third color filter separate from the first and second color filters, and a black matrix layer stacked on at least one of the first to third color filters; and
a liquid crystal layer held between the first and second substrates,
wherein the first to third color filters have respective first surfaces close to the first substrate, and respective second surfaces opposite to the first surface; and
the black matrix layer includes a portion stacked on the first surface of the first color filter, and portions contacting the second surfaces of the second and third color filters.
11. The liquid crystal display device of claim 10 , wherein the black matrix layer is stacked on the first or second color filter, the first color filter is a green filter, and the second color filter is a blue filter.
12. The liquid crystal display device of claim 10 , wherein the first substrate includes a common electrode opposing the pixel electrodes.
13. The liquid crystal display device of claim 10 , wherein the portion of the black matrix layer stacked on the first surface is smaller than portions of the black matrix layer contacting a third surface parallel to the second surfaces.
14. A liquid crystal display device comprising:
a first substrate including switching elements and pixel electrodes electrically connected to the switching elements;
a second substrate including an insulating substrate, a first color filter formed on a surface of the insulating substrate opposing the first substrate, a second color filter separate from the first color filter, a third color filter separate from the first and second color filters, and a black matrix layer stacked on at least one of the first to third color filters; and
a liquid crystal layer held between the first and second substrates,
wherein the first to third color filters have respective first surfaces close to the first substrate, and respective second surfaces opposite to the first surface; and
the black matrix layer includes portions stacked on the first surfaces of the first and second color filters, and a portion contacting the second surface of the third color filter.
15. The liquid crystal display device of claim 14 , wherein the portions of the black matrix layer stacked on the first surface are larger than a portion of the black matrix layer contacting a third surface parallel to the second surface.
16. The liquid crystal display device of claim 1 , wherein
the first color filter overlaps with the black matrix layer, which has a grid-like shape, in an area except a boundary between the second pixel and the third pixel.