Back to results
US 8,076,841 B2Granted
Organic electroluminescent display apparatus
AssigneeCanon Kabushiki Kaisha
InventorsSatoru Shiobara, Toshifumi Mori, Kenichi Ikari, Koichi Suzuki, Akira Tsuboyama
Life of this patent
Estimating the term…
Abstract
An organic electroluminescent display apparatus having organic electroluminescent devices each of which is excellent in color reproducibility and has high emission efficiency in which green organic electroluminescent devices each have a delayed fluorescent material and a microcavity, and the hole transport layer of each of the devices has the same thickness as that of the hole transport layer of each of blue organic electroluminescent devices.
Claims2
An organic electroluminescent display apparatus, comprising:
- red organic electroluminescent devices;
- green organic electroluminescent devices;
- and
- blue organic electroluminescent devices,
- each of the electroluminescent devices serving as a pixel and having a pair of electrodes, a hole transport layer, and an emission layer,
- wherein:
- the emission layer of each of the green organic electroluminescent devices has a delayed fluorescent material;
- each of the green organic electroluminescent devices has a microcavity between the pair of electrodes;
- and
- the hole transport layers of the green organic electroluminescent devices and the blue organic electroluminescent devices are provided so that the layers have the same thickness and are common to the devices.
7 more elements
Dependencies are inferred from the claim text.