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US 2023/0413615 A1Published application
Display device
AssigneeSharp Kabushiki Kaisha
InventorsTAKAO SAITOH, YOHSUKE KANZAKI, MASAKI YAMANAKA, YI SUN, MASAHIKO MIWA
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Abstract
According to an aspect pf the disclosure, a display device includes a base substrate; a thin film transistor layer provided on the base substrate and including a wiring layer; and a light-emitting element layer provided on the thin film transistor layer and including a plurality of first electrodes, a plurality of functional layers, and a common, second electrode, which are sequentially stacked in such a manner as to correspond to a plurality of subpixels in a display area.
Claims21
A display device comprising:
- a base substrate;
- a thin film transistor layer provided on the base substrate and including a wiring layer;
- and
- a light-emitting element layer provided on the thin film transistor layer and including a plurality of first electrodes, a plurality of functional layers, and a common, second electrode, which are sequentially stacked in such a manner as to correspond to a plurality of subpixels in a display area, wherein
- an insular non-display area is provided in the display area,
- a through hole extends in a direction of a thickness of the base substrate in the non-display area,
- a partition wall is provided in the non-display area so as to surround the through hole, and
- the partition wall is made of a same material, and provided in a same layer, as the wiring layer in such a manner that an edge on a through hole side of an upper side segment on a light-emitting element layer side projects toward the through hole side beyond an edge on the through hole side of a lower side segment, as opposed to the upper side segment, on a base substrate side,
- wherein
- the wiring layer includes a first metal layer, a second metal layer, and a third metal layer, all of which are sequentially stacked from the base substrate side toward the light-emitting element layer side,
- the partition wall includes a wall bottom portion made of a same material, and provided in a same layer, as the first metal layer and shaped like a frame, a wall middle portion made of a same material, and provided in a same layer, as the second metal layer and shaped like a frame, and a wall top portion made of a same material, and provided in a same layer, as the third metal layer and shaped like a frame, and
- the wall top portion has, on the through hole side, an edge shaped like an eave so as to project toward the through hole side beyond an edge of the wall middle portion on the through hole side, and
- wherein
- the thin film transistor layer includes a first inorganic insulating film provided on the light-emitting element layer side of the wiring layer, and
- an inorganic insulating layer made of a same material, and provided in a same layer, as the first inorganic insulating film and shaped like a frame is provided on the partition wall.
12 more elements
2-3. (canceled)
A display device comprising:
- a base substrate;
- a thin film transistor layer provided on the base substrate and including a wiring layer;
- and
- a light-emitting element layer provided on the thin film transistor layer and including a plurality of first electrodes, a plurality of functional layers, and a common, second electrode, which are sequentially stacked in such a manner as to correspond to a plurality of subpixels in a display area, wherein
- an insular non-display area is provided in the display area,
- a through hole extends in a direction of a thickness of the base substrate in the non-display area,
- a partition wall is provided in the non-display area so as to surround the through hole, and
- the partition wall is made of a same material, and provided in a same layer, as the wiring layer in such a manner that an edge on a through hole side of an upper side segment on a light-emitting element layer side projects toward the through hole side beyond an edge on the through hole side of a lower side segment, as opposed to the upper side segment, on a base substrate side,
- wherein
- the wiring layer includes a first metal layer, a second metal layer, and a third metal layer, all of which are sequentially stacked from the base substrate side toward the light-emitting element layer side,
- the partition wall includes a wall bottom portion made of a same material, and provided in a same layer, as the first metal layer and shaped like a frame, a wall middle portion made of a same material, and provided in a same layer, as the second metal layer and shaped like a frame, and a wall top portion made of a same material, and provided in a same layer, as the third metal layer and shaped like a frame, and
- the wall top portion has, on the through hole side, an edge shaped like an eave so as to project toward the through hole side beyond an edge of the wall middle portion on the through hole side, and
- wherein
- the thin film transistor layer includes a second inorganic insulating film provided on the base substrate side of the wiring layer, and
- the second inorganic insulating film is provided on the base substrate side of the partition wall so as not to extend beyond the partition wall.
12 more elements
Dependencies are inferred from the claim text.