Display device
According to one embodiment, a display device includes a first emitting layer provided in each of first pixels, a second emitting layer provided in each of second pixels, a third emitting layer provided in each of third pixels and a color filter provided to oppose the third emitting layer, and a threshold of the third emitting layer is higher than a threshold of the first emitting layer and a threshold of the second emitting layer, and the color filter overlaps a boundary between each first emitting layer and a respective third emitting layer and a boundary between a second emitting layer and a respective third emitting layer.
1 . A display device comprising:
a plurality of first pixels, a plurality of second pixels and a plurality of third pixels;
a first emitting layer provided in each of the plurality of first pixels, which emits a first color;
a second emitting layer provided in each of the plurality of second pixels, which emits a second color,
a third emitting layer provided in each of the third plurality of third pixels, which emits a third color;
a first color filter opposing the first emitting layer;
a second color filter opposing the second emitting layer; and
a third color filter provided to oppose the third emitting layer, wherein
a threshold voltage of the third emitting layer is higher than a threshold voltage of the first emitting layer and a threshold voltage of the second emitting layer,
the third color filter overlaps a boundary between each first emitting layer and a respective third emitting layer and a boundary between a second emitting layer and a respective third emitting layer, so that the third color filter overlaps the first emitting layer and the second emitting layer,
the third color filter overlaps the first color filter and the second color filter,
the third color filter is larger than each of the first color filter and the second color filter,
the first color filter includes a first region which overlaps the third emitting layer,
the second color filter includes a second region which overlaps the third emitting layer,
the third color filter includes a third region which overlaps each of the first emitting layer and the second emitting layer, and
the third region is larger than each of first region and the second region.
2 . The display device according to claim 1 , wherein
the first color, the second color and the third color are red, green and blue, respectively.
3 . The display device according to claim 1 , wherein
the first emitting layer, the second emitting layer and the third emitting layer each comprises an organic electroluminescent emitting material.
4 . The display device according to claim 1 , wherein
the first pixels, the second pixels and the third pixels each comprises,
a pixel electrode,
an electron transport layer,
one of the first emitting layer, the second emitting layer and the third emitting layer corresponding to the first pixels, the second pixels and the third pixels, respectively,
a hole transport layer, and
a common electrode.
5 . The display device according to claim 1 , wherein
the plurality of first pixels, the plurality of second pixels and the plurality of third pixels are arranged in a square-stripe array.
6 . The display device according to claim 1 , wherein
the plurality of first pixels, the plurality of second pixels and the plurality of third pixels are arranged in a stripe array.
7 . The display device according to claim 1 , wherein
the plurality of first pixels, the plurality of second pixels and the plurality of third pixels are arranged in a pen-tile array.
8 . A display device comprising:
a plurality of first pixels, a plurality of second pixels and a plurality of third pixels;
a first emitting layer provided in each of the plurality of first pixels, which emits a red color;
a second emitting layer provided in each of the plurality of second pixels, which emits a green color;
a third emitting layer provided in each of the third plurality of third pixels, which emits a blue color;
a red color filter opposing the first emitting layer;
a green color filter opposing the second emitting layer; and
a blue color filter provided to oppose the third emitting layer, wherein
the blue color filter overlaps a boundary between each first emitting layer and a respective third emitting layer and a boundary between a second emitting layer and a respective third emitting layer, so that the blue color filter overlaps the first emitting layer and the second emitting layer,
the blue color filter overlaps the red color filter and the green color filter,
the blue color filter is larger than each of the red color filter and the green color filter,
the red color filter includes a first region which overlaps the third emitting layer,
the green color filter includes a second region which overlaps the third emitting layer,
the blue color filter includes a third region which overlaps each of the first emitting layer and the second emitting layer, and
the third region is larger than each of first region and the second region.
9 . The display device according to claim 8 , wherein
a threshold voltage of the third emitting layer is higher than a threshold voltage of the first emitting layer and a threshold voltage of the second emitting layer.
10 . The display device according to claim 8 , wherein
the first emitting layer, the second emitting layer and the third emitting layer each comprises an organic electroluminescent emitting material.
11 . The display device according to claim 8 , wherein
the first pixels, the second pixels and the third pixels each comprises,
a pixel electrode,
an electron transport layer,
one of the first emitting layer, the second emitting layer and the third emitting layer corresponding to the first pixels, the second pixels and the third pixels, respectively,
a hole transport layer, and
a common electrode.
12 . The display device according to claim 8 , wherein
the plurality of first pixels, the plurality of second pixels and the plurality of third pixels are arranged in a square-stripe array.
13 . The display device according to claim 8 , wherein
the plurality of first pixels, the plurality of second pixels and the plurality of third pixels are arranged in a stripe array.
14 . The display device according to claim 8 , wherein
the plurality of first pixels, the plurality of second pixels and the plurality of third pixels are arranged in a pen-tile array.