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US 2007/0181887 A1Published application
Display device
AssigneeSony Corporation
InventorsYasunori Kijima, Tetsuo Shibanuma, Shigeyuki Matsunami, Yoichi Tomo
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AssigneeSony Corporation
InventorsYasunori Kijima, Tetsuo Shibanuma, Shigeyuki Matsunami, Yoichi Tomo
Estimating the term…
In a stacked display device with light-emitting units composed of organic layers and stacked together, the use of a stable material in at least a portion of a charge generation layer makes it possible to achieve improvements in environmental stability and also to attain an improvement in the efficiency of injection of charges from the charge generation layer into the light-emitting units. The display device can be readily fabricated. In a display device (11) provided with a plurality of light-emitting units (14-1)(14-2), each of which includes at least an organic light-emitting layer (14c), stacked together between a cathode (16) and an anode (13), and also with a charge generation layer (15) held between the respective light-emitting units (14-1)(14-2), at least a portion of the charge generation layer (15) is composed of an oxide or fluoride which contains at least one of alkali metals and alkaline earth metals.
A display device provided with a plurality of light-emitting units stacked together between a cathode and an anode, each of said light-emitting units including at least an organic light-emitting layer, and also with a charge generation layer held between each two adjacent ones of said light-emitting units, wherein said charge generation layer is composed of an oxide comprising at least one of alkali metals and alkaline earth metals.
A display device provided with a plurality of light-emitting units stacked together between a cathode and an anode, each of said light-emitting units including at least an organic light-emitting layer, and also with a charge generation layer held between each two adjacent ones of said light-emitting units, wherein at an interface on an anode side of each charge generation layer, an interfacial layer composed of a fluoride comprising at least one of alkali metals and alkaline earth metals is arranged.
A display device provided with a plurality of light-emitting units stacked together between a cathode and an anode, each of said light-emitting units including at least an organic light-emitting layer, and also with a charge generation layer held between each two adjacent ones of said light-emitting units, wherein said charge generation layer is formed of a mixed layer of at least one element of alkali metals and alkaline earth metals and an organic material and an intrinsic charge generation layer stacked in contact with each other in this order from the side of said anode.
Dependencies are inferred from the claim text.