Display device and manufacturing method of the same
According to one embodiment, a display device comprises a first display element including a first lower electrode, a first upper electrode, and a first organic layer, a second display element including a second lower electrode, a second upper electrode, and a second organic layer, and a partition between the first and second display elements. The partition comprises a lower portion including first and second side surfaces, and an upper portion including a first end portion protruding from the first side surface and a second end portion protruding from the second side surface. The first end portion has a light-shielding property, and the second end portion has translucency.
1 . A display device comprising:
a first display element including a first lower electrode, a first upper electrode, and a first organic layer emitting light in accordance with a voltage between the first lower electrode and the first upper electrode;
a second display element including a second lower electrode, a second upper electrode, and a second organic layer emitting light in accordance with a voltage between the second lower electrode and the second upper electrode; and
a partition arranged between the first display element and the second display element,
wherein
the partition comprises:
a lower portion including a first side surface on the first display element side and a second side surface on the second display element side; and
an upper portion including a first end portion protruding from the first side surface and a second end portion protruding from the second side surface,
the first end portion has a light-shielding property, and
the second end portion has translucency.
2 . The display device of claim 1 , wherein
the upper portion comprises:
a transparent layer extending from the first end portion to the second end portion; and
a light-shielding layer arranged at the first end portion.
3 . The display device of claim 2 , wherein
the light-shielding layer is arranged on the transparent layer.
4 . The display device of claim 2 , wherein
the light-shielding layer is formed of titanium.
5 . The display device of claim 2 , wherein
the light shielding layer has a transmittance of 10% or less for light having a wavelength of 436 nm or light having a wavelength of 405 nm.
6 . The display device of claim 2 , wherein
the partition surrounds the first display element and the second display element, and
the light-shielding layer surrounds the first display element.
7 . The display device of claim 2 , wherein
the transparent layer includes:
a first transparent layer formed of a silicon oxide; and
a second transparent layer formed of a conductive oxide.
8 . The display device of claim 2 , wherein
the transparent layer has a single-layer structure of a silicon oxide.
9 . The display device of claim 1 , wherein
the lower portion is conductive,
the first upper electrode is in contact with the first side surface, and
the second upper electrode is in contact with the second side surface.
10 . The display device of claim 1 , further comprising:
a first sealing layer formed of an inorganic material covering the first display element, the first side surface, and the first end portion; and
a second sealing layer formed of an inorganic material covering the second display element, the second side surface, and the second end portion,
wherein
end portions of the respective first sealing layer and second sealing layer are located on the upper portion and are separated from each other.