Display device having a partition provided on a rib covering a part of a lower electrode and manufacturing method thereof
AssigneeMagnolia White Corporation
InventorsKaichi Fukuda, Hiroshi Ogawa, Nobuo Imai
Life of this patent
Estimating the term…
Abstract
According to one embodiment, a display device includes a lower electrode, a rib including an aperture overlapping the lower electrode, a partition on the rib, an upper electrode which is in contact with the partition, an organic layer between the lower electrode and the upper electrode, and a sealing layer above the upper electrode. The partition includes a lower portion provided on the rib, and an upper portion provided on the lower portion and including an end portion protruding from a side surface of the lower portion. The upper portion contains at least one of a conductive oxide and titanium.
Claims18
A display device comprising:
- a lower electrode;
- a rib which covers part of the lower electrode and comprises an aperture overlapping the lower electrode;
- a partition provided on the rib;
- an upper electrode which faces the lower electrode and is in contact with the partition;
- an organic layer located between the lower electrode and the upper electrode and emitting light based on a potential difference between the lower electrode and the upper electrode;
- and
- a sealing layer located above the upper electrode, wherein
- the partition comprises a lower portion provided on the rib, and an upper portion provided on the lower portion and comprising an end portion protruding from a side surface of the lower portion,
- the upper portion includes a first layer formed of titanium and a second layer formed of a conductive oxide, and
- the second layer is thinner than the first layer.
A display device comprising:
- a lower electrode;
- a rib which covers part of the lower electrode and comprises an aperture overlapping the lower electrode;
- a partition provided on the rib;
- an upper electrode which faces the lower electrode and is in contact with the partition;
- an organic layer located between the lower electrode and the upper electrode and emitting light based on a potential difference between the lower electrode and the upper electrode;
- and
- a sealing layer located above the upper electrode, wherein
- the partition comprises a lower portion provided on the rib, and an upper portion provided on the lower portion and comprising an end portion protruding from a side surface of the lower portion, and
- the upper portion comprises a single-layer structure of titanium.
A display device comprising:
- a lower electrode;
- a rib which covers part of the lower electrode and comprises an aperture overlapping the lower electrode;
- a partition provided on the rib;
- an upper electrode which faces the lower electrode and is in contact with the partition;
- an organic layer located between the lower electrode and the upper electrode and emitting light based on a potential difference between the lower electrode and the upper electrode;
- and
- a sealing layer located above the upper electrode, wherein
- the partition comprises a lower portion provided on the rib, and an upper portion provided on the lower portion and comprising an end portion protruding from a side surface of the lower portion, and
- the upper portion includes a first layer formed of titanium and a second layer formed of silicon oxide.
A manufacturing method of a display device, the method comprising:
- forming a lower electrode;
- forming a rib which covers at least part of the lower electrode;
- forming a partition comprising a lower portion provided on the rib, and an upper portion containing at least one of a conductive oxide and titanium and protruding from a side surface of the lower portion;
- forming an organic layer on the lower electrode;
- forming an upper electrode which is in contact with the partition and is located on the organic layer;
- forming a sealing layer on the upper electrode;
- forming a resist on the sealing layer;
- and
- removing portions of the organic layer, the upper electrode and the sealing layer exposed from the resist by etching using the resist as a mask.
Dependencies are inferred from the claim text.