Display device and manufacturing method thereof
AssigneeJapan Display Inc.
InventorsNobuo IMAI, Yuya YAMAMOTO, Hiroshi OGAWA
Life of this patent
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Abstract
According to one embodiment, a display device includes a lower electrode, a rib including a pixel aperture, a partition including a lower portion on the rib and an upper portion protruding from a side surface of the lower portion, an upper electrode facing the lower electrode, an organic layer between the electrodes, and a sealing layer covering a display element and the partition. The rib includes a first rib layer and a second rib layer which covers the first rib layer. The sealing layer and the first rib layer are formed of a first inorganic material. The second rib layer is formed of a second inorganic material different from the first inorganic material.
Claims20
A display device comprising:
- a lower electrode;
- a rib comprising a pixel aperture which overlaps the lower electrode;
- a partition comprising a lower portion provided on the rib and an upper portion which protrudes from a side surface of the lower portion;
- an upper electrode which faces the lower electrode;
- an organic layer which is located between the lower electrode and the upper electrode, is in contact with the lower electrode through the pixel aperture, and emits light based on a potential difference between the lower electrode and the upper electrode;
- and
- a sealing layer which continuously covers a display element including the lower electrode, the upper electrode and the organic layer and the partition, wherein
- the rib includes a first rib layer and a second rib layer which covers the first rib layer,
- the sealing layer and the first rib layer are formed of a first inorganic material, and
- the second rib layer is formed of a second inorganic material different from the first inorganic material.
A manufacturing method of a display device, including:
- forming a lower electrode;
- forming a first rib layer which covers the lower electrode by a first inorganic material;
- forming a second rib layer which covers the first rib layer by a second inorganic material different from the first inorganic material;
- forming a rib comprising a pixel aperture which overlaps the lower electrode by patterning the first rib layer and the second rib layer;
- forming a partition comprising a lower portion provided on the rib and an upper portion which protrudes from a side surface of the lower portion;
- forming an organic layer which is in contact with the lower electrode through the pixel aperture;
- forming an upper electrode which covers the organic layer;
- and
- forming a sealing layer which covers a display element including the lower electrode, the upper electrode and the organic layer by the first inorganic material.
Dependencies are inferred from the claim text.