Abstract: Polyphenylene compounds such as compounds represented by Formula 1 may be used in electronic devices such as organic light-emitting devices. For example, the compounds may be used as host materials in a light-emitting layer.

Abstract: The present disclosure relates to an emissive construct, which can be used in various OLED applications, for example, top-emission white organic light-emitting diodes. The emissive construct includes a fluorescent emissive layer, a partial hole-blocking layer, and a phosphorescent emissive. A recombination zone is shared between the fluorescent emissive layer and the phosphorescent emissive layer, such that the thickness of the partial hole-blocking layer is less than about one-third of the thickness of the recombination zone.

Abstract: Embodiments of the present invention provide a reconfigurable optical add-drop multiplexer apparatus, and relate to the field of communications, so as to solve the problem of inconvenient line failure detection. The ROADM apparatus includes: a first ROADM, a second ROADM, one splitting coupler, four optical amplifiers, and four couplers. The embodiments of the present invention are used in a communications line architecture.

Abstract: Included herein is the compound: and related compounds, and light-emitting devices comprising the same.

Abstract: The present disclosure relates to an emissive construct, which can be used in various OLED applications, for example, top-emission white organic light-emitting diodes. The emissive construct includes a fluorescent emissive layer, a partial hole-blocking layer, and a phosphorescent emissive. A recombination zone is shared between the fluorescent emissive layer and the phosphorescent emissive layer, such that the thickness of the partial hole-blocking layer is less than about one-third of the thickness of the recombination zone.

Abstract: A method for detecting a submarine optical cable line includes: splitting a detection signal input to a first optical functional unit in an optical functional module of an optical cable line into a first detection signal and a second detection signal; directly coupling and looping back the first detection signal to an output end of a second optical functional unit in a direction opposite to the first optical functional unit to constitute a first loopback path, and outputting a first detection loopback signal; looping back the second detection signal passing through the first optical functional unit to the output end of the second optical functional unit to constitute a second loopback path, and outputting a second detection loopback signal; and detecting a status of the submarine optical cable line according to power of the first detection loopback signal and power of the second detection loopback signal.

Abstract: Polyphenylene compounds such as compounds represented by Formulas 1-28 may be used in electronic devices such as organic light-emitting devices. For example, the compounds may be used as host material in an emissive layer.

Abstract: The present disclosure relates to an emissive construct, which can be used in various OLED applications, for example, top-emission white organic light-emitting diodes. The emissive construct can include an optional second fluorescent emissive layer having an emitter with a second T1, a first fluorescent emissive layer having an emitter with a first T1, the first T1 being greater than the second T1 value, a hole-blocking layer, and a phosphorescent emissive layer.

Abstract: Some porous films, such as organic non-polymeric porous films, may be useful for light outcoupling to increase light-emitting device efficiency. They may also be used for light scattering in other devices and for other applications related to the transfer of light.

Abstract: Generally, the devices provided herein comprise at least a hole-transport layer, two light-emitting layers, and an electron-transport layer, each having a highest occupied molecular orbital (HOMO) energy level and a lowest unoccupied molecular orbital (LUMO) energy level, wherein at least one of the HOMO energy levels and/or the LUMO energy levels of at least one of the light-emitting layers does not decrease in a stepwise fashion.

Abstract: Polyphenylene compounds such as compounds represented by Formula 1 may be used in electronic devices such as organic light-emitting devices. For example, the compounds may be used as host materials in a light-emitting layer.

Abstract: Light-emitting devices comprising light-emitting diodes are described herein. These devices may include a substrate, a reflective anode, a hole-injection layer, a hole-transport layer, an emissive component, an electron-transport layer, a cathode, an enhancement layer, and a light-scattering layer. The emissive component may include first and second fluorescent light-emitting layers with an intervening phosphorescent light-emitting layer or first and second phosphorescent light-emitting layers with an intervening fluorescent light-emitting layer.

Abstract: Generally, the devices provided herein comprise at least a hole-transport layer, two light-emitting layers, and an electron-transport layer, each having a highest occupied molecular orbital (HOMO) energy level and a lowest unoccupied molecular orbital (LUMO) energy level, wherein at least one of the HOMO energy levels and/or the LUMO energy levels of at least one of the light-emitting layers does not decrease in a stepwise fashion.

Abstract: Polyphenylene compounds such as compounds represented by Formula I may be used in electronic devices such as organic light-emitting devices. For example, the compounds may be used as host materials in a light-emitting layer.

Abstract: Methods and devices related to the treatment of diseases using phototherapy are described. Some embodiments provide an organic light-emitting diode device, such as a light-emitting device for phototherapy, comprising Ring system 1, Ring system 2, Ring system 3, or Ring system 4. Methods of treating disease with phototherapy are also described.

Abstract: A method, an optical add-drop multiplexer branching unit, and a system for disaster recovery of an optical communication system are provided. The method for disaster recovery of an optical communication system using an optical add-drop multiplexer unit (OADM) includes: detecting a transmission link fault in an optical communication system; and when a transmission link fault is detected, switching the state of a link where the transmission link fault occurs from pass-through to loopback, so that an optical signal input from a non-faulty end of the link is looped back to the end for outputting. In this way, when a transmission link fault occurs in an optical communication system, the power level of a link where the transmission link fault occurs can be maintained by using the solutions in the embodiments of the present invention, thereby keeping transmission performance stable.

Abstract: A method for detecting a submarine optical cable line includes: splitting a detection signal input to a first optical functional unit in an optical functional module of an optical cable line into a first detection signal and a second detection signal; directly coupling and looping back the first detection signal to an output end of a second optical functional unit in a direction opposite to the first optical functional unit to constitute a first loopback path, and outputting a first detection loopback signal; looping back the second detection signal passing through the first optical functional unit to the output end of the second optical functional unit to constitute a second loopback path, and outputting a second detection loopback signal; and detecting a status of the submarine optical cable line according to power of the first detection loopback signal and power of the second detection loopback signal.

Abstract: Polyphenylene compounds such as compounds represented by Formulas 1-28 may be used in electronic devices such as organic light-emitting devices. For example, the compounds may be used as host material in an emissive layer.

Abstract: Emissive constructs having three emissive layers, each having the same fluorescent host are described. At least one of the layers further includes a phosphorescent dopant. Light-emitting devices including these emissive constructs are also described.

Abstract: Disclosed herein are compounds represented by a formula: Wherein Ar1, Cb, Ph1, Het1, and A are described herein. Compositions and light-emitting devices related thereto are also disclosed.