Back to results
US 12,010,878 B2Granted
Display device
AssigneeJapan Display Inc.
InventorsShinichi Kawamura, Nobuo Imai, Hiroshi Ogawa
Life of this patent
Estimating the term…
Abstract
According to one embodiment, a display device comprises a first lower electrode, a rib including a first pixel aperture, a partition including a lower portion on the rib and an upper portion protruding from a side surface of the lower portion, a first upper electrode, and a first organic layer between the first lower electrode and the first upper electrode. The lower portion includes a bottom layer and a stem layer on the bottom layer. The bottom layer is formed of a material which has a smaller etching rate to a mixed acid containing phosphoric acid, nitric acid, and acetic acid than the stem layer and which is conductive.
Claims25
A display device comprising:
- a first lower electrode and a second lower electrode;
- a rib including a first pixel aperture overlapping with the first lower electrode and a second pixel aperture overlapping with the second lower electrode;
- a partition including a lower portion arranged on the rib between the first pixel aperture and the second pixel aperture, and an upper portion protruding from a side surface of the lower portion;
- a first upper electrode opposed to the first lower electrode;
- a second upper electrode opposed to the second lower electrode;
- a first organic layer located between the first lower electrode and the first upper electrode to emit light;
- a second organic layer located between the second lower electrode and the second upper electrode to emit light;
- a first sealing layer covering the first upper electrode;
- and
- a second sealing layer covering the second upper electrode,
- wherein
- the rib is formed of a first inorganic material,
- the first sealing layer and the second sealing layer are formed of a second inorganic material that is different from the first inorganic material,
- a first end part of the first sealing layer and a second end part of the second sealing layer are located above the upper portion of the partition,
- the lower portion includes a conductive bottom layer and a stem layer which is formed of a metal and is arranged on the conductive bottom layer,
- the conductive bottom layer includes a first end on a side of the first pixel aperture and a second end on a side of the second pixel aperture,
- the stem layer includes a first side surface on a side of the first pixel aperture and a second side surface on a side of the second pixel aperture, and
- the first end protrudes from the first side surface, and the second end protrudes from the second side surface.
15 more elements
A display device comprising:
- a first lower electrode and a second lower electrode;
- a rib including a first pixel aperture overlapping with the first lower electrode and a second pixel aperture overlapping with the second lower electrode;
- a partition including a lower portion arranged on the rib and an upper portion protruding from a side surface of the lower portion;
- a first upper electrode opposed to the first lower electrode;
- a second upper electrode opposed to the second lower electrode;
- a first organic layer located between the first lower electrode and the first upper electrode to emit light;
- a second organic layer located between the second lower electrode and the second upper electrode to emit light;
- a first sealing layer covering the first upper electrode;
- and
- a second sealing layer covering the second upper electrode,
- wherein
- the partition is arranged between the first pixel aperture and the second pixel aperture,
- the rib is formed of an inorganic material,
- the upper portion includes a first layer and a second layer covering the first layer,
- the first layer is formed of a first metal,
- the second layer is formed of a transparent conductive material,
- a first end part of the first sealing layer and a second end part of the second sealing layer are located above the upper portion of the partition,
- the lower portion includes a conductive bottom layer and a stem layer which is formed of a second metal that is different from the first metal and is arranged on the conductive bottom layer, the conductive bottom layer includes a first end on a side of the first pixel aperture and a second end on a side of the second pixel aperture,
- the stem layer includes a first side surface on a side of the first pixel aperture and a second side surface on a side of the second pixel aperture, and
- the first end protrudes from the first side surface, and the second end protrudes from the second side surface.
17 more elements
A display device comprising:
- a first lower electrode and a second lower electrode;
- a rib including a first pixel aperture overlapping with the first lower electrode and a second pixel aperture overlapping with the second lower electrode;
- a partition including a lower portion arranged on the rib and an upper portion protruding from a side surface of the lower portion;
- a first upper electrode opposed to the first lower electrode;
- a second upper electrode opposed to the second lower electrode;
- a first organic layer located between the first lower electrode and the first upper electrode to emit light;
- a second organic layer located between the second lower electrode and the second upper electrode to emit light;
- a first sealing layer covering the first upper electrode;
- and
- a second sealing layer covering the second upper electrode,
- wherein
- the partition is arranged between the first pixel aperture and the second pixel aperture,
- the rib is formed of an inorganic material,
- the upper portion includes a first layer and a second layer covering the first layer,
- the first layer is formed of a first metal,
- the second layer is formed of a transparent conductive material,
- a first end part of the first sealing layer and a second end part of the second sealing layer are located above the upper portion of the partition,
- the lower portion includes a conductive bottom layer that is formed of the first metal and a stem layer that is formed of a second metal that is different from the first metal and that is arranged on the conductive bottom layer, the conductive bottom layer includes a first end on a side of the first pixel aperture and a second end on a side of the second pixel aperture,
- the stem layer includes a first side surface on a side of the first pixel aperture and a second side surface on a side of the second pixel aperture, and
- the first end protrudes from the first side surface, and the second end protrudes from the second side surface.
17 more elements
Dependencies are inferred from the claim text.