Organic electroluminescent display device containing filter to provide high contrast

A multicolor light-emitting organic electroluminescent (EL) display device including a plurality of organic EL light-emitting regions which include a red-light emitting region which emits red light, a green-light emitting region which emits green light, a blue-light emitting region which emits blue light, and a non light-emitting region arranged on a main substrate, said organic EL display device comprising:na first light-adjusting layer including a first portion and a second portion, the first portion selectively transmitting desired blue light and overlaying the blue-light emitting region, and the second portion absorbing visible light other than the desired blue light and overlaying the non-light emitting portion; anda second light-adjusting layer selectively absorbing light with a wavelength between desired red light and desired green light and overlaying the red-light emitting region, the green-light emitting region, the blue-light emitting region and the non-light emitting region,wherein a light-adjusting layer selectively transmitting red light, and a light-adjusting layer selectively transmitting green light are omitted from the organic EL display device entirely.

A multicolor light-emitting organic electroluminescent (EL) display device including a plurality of organic EL light-emitting regions which include a red-light emitting region which emits red light, a green-light emitting region which emits green light, a blue-light emitting region which emits blue light, and a non light-emitting region arranged on a main substrate, said organic EL display device comprising:na first light-adjusting layer including a first portion and a second portion, the first portion selectively transmitting desired blue light and overlaying the blue-light emitting region, and the second portion absorbing visible light other than the desired blue light and overlaying the non-light emitting portion; anda second light-adjusting layer selectively absorbing light with a wavelength between desired red light and desired green light and overlaying the red-light emitting region, the green-light emitting region, the blue-light emitting region and the non-light emitting region,wherein the red-light emitting region has a red luminescent material, the green-light emitting region has a green luminescent material, and the blue-light emitting region has a blue luminescent material.

A multicolor light-emitting organic electroluminescent (EL) display device including a plurality of organic EL light-emitting regions which include a red-light emitting region which emits red light, a green-light emitting region which emits green light, a blue-light emitting region which emits blue light, and a non light-emitting region arranged on a main substrate, said organic EL display device comprising:na first light-adjusting layer comprising a material selectively transmitting desired blue light and absorbing visible light other than the desired blue light, and including a first portion and a second portion, the first portion overlaying the blue-light emitting region, the second portion overlaying the non-light emitting portion, and the first portion and the second portion are integrally formed; anda second light-adjusting layer selectively absorbing light with a wavelength between desired red light and desired green light and overlaying the red-light emitting region, the green-light emitting region, the blue-light emitting region and the non-light emitting region,wherein the first light-adjusting layer has a plurality of openings andeach of the plurality of openings is overlaying the red light-emitting region or the green light-emitting region.