Organic EL display device
View Patent ↗A bank partitions a plurality of pixels and has an opening in each of the plurality of pixels. An organic layer includes a light emitting layer, and covers the bank opening. A first inorganic barrier layer is formed of an inorganic material, and covers the bank and the organic layer. A plurality of organic barrier portions are formed of organic materials, and are disposed on the first inorganic barrier layer. A second inorganic barrier layer is formed of the inorganic material, and covers the first inorganic barrier layer and the plurality of organic barrier portions. A recessed portion is formed on the bank and the first inorganic barrier layer (for example, the recessed portion is formed in an area which covers a contact hole), and a portion of the organic barrier portion is formed in the recessed portion.
1. An organic EL display device comprising:
a bank partitioning a plurality of pixels, and having an opening formed in each of the plurality of pixels;
an organic layer including a light emitting layer, and including a portion formed inside the opening of the bank;
a first barrier layer formed of an inorganic material, and covering the bank and the organic layer;
a plurality of organic portions formed of organic materials, and disposed on the first barrier layer;
a second barrier layer formed of an inorganic material, and covering the first barrier layer and the plurality of organic portions,
a TFT provided in each of the plurality of pixels;
a planarization film covering the TFT; and
a lower electrode provided in each of the plurality of pixels, formed on the planarization film, and connected to the TFT via a contact hole formed on the planarization film,
wherein a recessed portion is formed on the bank and the first barrier layer,
a portion of the plurality of organic portions is formed in the recessed portion,
the bank covers the contact hole, and
the recessed portion on the bank and the first barrier layer is a portion which is recessed due to the contact hole.
2. The organic EL display device according to claim 1 ,
wherein a thickness of the bank is smaller than a thickness of the planarization film.
3. The organic EL display device according to claim 1 ,
wherein each of the plurality of pixels has, in the bank and the first barrier layer, the recessed portion in which the organic portion is disposed.
4. The organic EL display device according to claims 1 ,
wherein an area in which the organic portion does not exist is formed between the first barrier layer and the second barrier layer.
5. An organic EL display device comprising:
a bank partitioning a plurality of pixels, and having an opening formed in each of the plurality of pixels;
an organic layer including a light emitting layer, and including a portion formed inside the opening of the bank;
a first barrier layer formed of an inorganic material, and covering the bank and the organic layer;
a plurality of organic portions formed of organic materials, and disposed on the first barrier layer; and
a second barrier layer formed of an inorganic material, and covering the first barrier layer and the plurality of organic portions,
wherein a recessed portion is formed on the bank and the first barrier layer,
a portion of the plurality of organic portions is formed in the recessed portion, and
each of the plurality of pixels has, in the bank and the first barrier layer, the recessed portion in which the organic portion is disposed.
6. The organic EL display device according to claim 5 , further comprising a planarization film covering a TFT provided in each of the plurality of pixels,
wherein a thickness of the bank is smaller than a thickness of the planarization film.
7. The organic EL display device according to claims 5 ,
wherein an area in which the organic portion does not exist is formed between the first barrier layer and the second barrier layer.