Organic light-emitting display device including black matrix-containing neutral density film
View Patent ↗An organic light-emitting display device including: a substrate; a plurality of pixels each including a first electrode, a second electrode, and an organic emission layer interposed between the first electrode and the second electrode; and a black matrix-containing neutral density (ND) film formed in a direction in which light is emitted from the plurality of pixels.
1. An organic light-emitting display device comprising:
a substrate;
a plurality of pixels each comprising a first electrode, a second electrode, and an organic emission layer between the first electrode and the second electrode;
a black matrix-containing neutral density (ND) film arranged in a direction in which light is emitted from the plurality of pixels and comprising a plurality of first regions respectively corresponding to the plurality of pixels and a plurality of second regions,
and a dye-containing layer comprising a first portion and a second portion, the dye-containing layer being a single continuous layer having planar bottom and top surfaces, wherein each of the plurality of second regions comprises a black matrix and the first portion of the dye-containing layer, the black matrix overlaps the first portion of the dye-containing layer in a direction normal to the substrate, wherein each of the plurality of first regions comprises a first portion of a base resin layer, a first portion of a surface treatment layer and the second portion of the dye-containing layer, and wherein the base resin layer separates the dye-containing layer from the black matrix in each of the plurality of second regions, and the first portion of the surface treatment layer directly contacts the first portion of the base resin layer in each of the plurality of the first regions.
2. The organic light-emitting display device of claim 1 , wherein the black matrix corresponds to each of the plurality of second regions.
3. The organic light-emitting display device of claim 1 , wherein the black matrix is patterned in each of the plurality of second regions.
4. The organic light-emitting display device of claim 1 , wherein a concave shape in each of the plurality of second regions is filled with the black matrix.
5. The organic light-emitting display device of claim 1 , wherein the black matrix has a thickness of about 100 μm to about 200 μm.
6. The organic light-emitting display device of claim 1 , wherein the black matrix comprises an organic material.
7. The organic light-emitting display device of claim 1 , wherein the black matrix comprises carbon black, a dye, or a resin.
8. The organic light-emitting display device of claim 1 , wherein each of the plurality of second regions is a non-light emitting region corresponding to a thin film transistor (TFT) and a metal wire.
9. The organic light-emitting display device of claim 1 , wherein each of the plurality of first regions and each of the plurality of second regions of the black matrix-containing ND film are arranged alternately with respect to each other.
10. The organic light-emitting display device of claim 1 , wherein the organic light-emitting display device is a bottom-emission type in which light emitted from the plurality of pixels is emitted towards the substrate.
11. The organic light-emitting display device of claim 1 , wherein the organic light-emitting display device is a top-emission type in which light emitted from the plurality of pixels is emitted in an opposite direction of the substrate.
12. The organic light-emitting display device of claim 1 , wherein the first regions transmit light of a certain color emitted from the plurality of pixels and have an optical transmittance of from about 30% to about 70%.
13. The organic light-emitting display device of claim 1 , wherein the second regions have an optical transmittance of from about 1% to about 10%.
14. The organic light-emitting display device of claim 1 , wherein the black matrix-containing ND film comprises at least one selected from the group consisting of polycarbonate (PC), polyethylene terephthalate (PET), amorphous polyethylene terephthalate (APET), polypropylene terephthalate (PPT), polynaphthalene terephthalate (PEN), polyethylene terephthalate glycerol (PETG), polycyclohexylene dimethylene terephthalate (PCTG), modified triacetyl cellulose (TAC), cycloolefin polymer (COP), cycloolefin copolymer (COC), dicyclopentadiene polymer (DCPD), cyclopentadiene polymer (CPD), polymethyl methacrylate (PMMA), polyimide (PI), polyarylate (PAR), polyethersulfone (PES), polyetherimide (PEI), a silicon resin, a fluorine resin, and an epoxy resin.
15. The organic light-emitting display device of claim 1 , wherein the black matrix-containing ND film comprises from about 10 parts to about 50 parts by weight of a dye based on 1 part by weight of a binder.
16. The organic light-emitting display device of claim 1 , further comprising the surface treatment layer formed by performing an anti-reflector (AR) coating treatment.
17. The organic light-emitting display device of claim 1 , wherein each of the plurality of second regions further comprises a second portion of the surface treatment layer and a second portion of the base resin layer.