Organic electro luminescent display device
View Patent ↗An organic EL display device includes plural pixels that is arranged on a substrate in a matrix, a light shielding film that shields boundaries of the plurality of pixels, and a light emitting area in which an organic layer that is arranged between a lower electrode and an upper electrode, and formed of a plurality of layers including a light emitting layer that emits a light comes in contact with the lower electrode, in each of the plurality of pixels, in which the light shielding film has wide portions and narrow portions which are arranged along sides of the pixels, and different in width from each other.
1. An organic EL display device, comprising:
a plurality of pixels that is arranged on a substrate in a matrix;
a light shielding film that shields boundaries of the plurality of pixels; and
light emitting areas each of which is provided in each of the plurality of pixels and is an area where an organic layer makes contact with a lower electrode, the organic layer arranged between the lower electrode and an upper electrode, and formed of a plurality of layers including a light emitting layer,
wherein each of the light emitting areas has a long side that extends along a side of a corresponding one of the plurality of pixels and a short side that extends along another side of the corresponding one of the plurality of pixels, the long side and the short side being different in length,
wherein each of the light emitting areas is adjacent to another first one of the light emitting areas and another second one of the light emitting areas,
wherein the short side of each of the light emitting areas lies next to the short side of the first one of the light emitting areas,
wherein the long side of each of the light emitting areas lies next to the long side of the second one of the light emitting areas,
wherein the light shielding film has a wide portion and a narrow portion which are different in width from each other,
wherein the narrow portion is arranged along the short side so as to expose the short side, between each of the light emitting areas and the first one of the light emitting areas, and
wherein the wide portion is arranged along the long side so as to cover the long side, between each of the light emitting areas and the second one of the light emitting areas.
2. The organic EL display device according to claim 1 ,
wherein the wide portion has a width wide enough to cover an organic layer slope area in which the organic layer and the upper electrode around each of the light emitting areas are inclined compared with the organic layer and the upper electrode in each of the light emitting areas in a plan view, and
wherein the narrow portion has a width not wide enough to extend to the organic layer slope area.
3. The organic EL display device according to claim 1 ,
wherein the wide portion has a width wide enough to cover a sealing film slope area in which an inorganic sealing film formed on the upper electrode to cover the plurality of pixels is inclined as compared with the inorganic sealing film at a center portion of each of the light emitting areas when viewed from an upper surface.
4. The organic EL display device according to claim 1 ,
wherein the light shielding film covers a contact hole that connects the lower electrode and a transistor in the plan view.
5. The organic EL display device according to claim 1 ,
wherein the pixels are formed on a first substrate, and the light shielding film is formed on a second substrate.
6. The organic EL display device according to claim 1 ,
wherein the pixels are formed on a first substrate, and the light shielding film is formed on a second substrate, and
wherein each of the light emitting areas emits a white light, and the second substrate includes a color filter.