48results about How to "Inhibition of shortened lifespan" patented technology

To provide a novel heterocyclic compound that can be used as a host material in which a light-emitting substance of a light-emitting layer is dispersed. A heterocyclic compound comprising a dibenzo[f,h]quinoxaline ring and two hole-transport skeletons, where the dibenzo[f,h]quinoxaline ring and the two hole-transport skeletons are bonded to an aromatic hydrocarbon group. A heterocyclic compound represented by the following general formula (G1) is provided.Note that in the formula, A1 and A2 each independently represent any of a substituted or unsubstituted carbazole skeleton, a substituted or unsubstituted dibenzofuran skeleton, and a substituted or unsubstituted dibenzothiophen skeleton; B represents a substituted or unsubstituted dibenzo[f,h]quinoxaline skeleton; and Ar represents an arene skeleton having 6 to 13 carbon atoms. A light-emitting element including the heterocyclic compound is provided.

A valve control device comprising a receiving unit, an opening degree control unit, and a fixing control unit. The receiving unit receives information concerning the measured temperature of a fluid to be cooled that is cooled by a vaporizer in a refrigerant circulation path that is equipped with the vaporizer and a condenser. The opening degree control unit variably controls the opening degree of a valve that controls the flow rate of the refrigerant that circulates through the circulation path in accordance with the difference between the measured temperature and a target temperature provided in advance. The fixing control unit fixes the opening degree of the valve with priority over variable control performed by the opening degree control unit in the case where a fixing condition based on the difference between the measured temperature and the target temperature and a valve opening degree variation condition is satisfied.

A lithium ion battery comprises a positive electrode terminal and a negative electrode terminal, a battery case, and an electrode body housed inside the battery case. The electrode body has a positive electrode current collector and a positive-electrode electrode plate and a negative electrode current collector and a negative-electrode electrode plate, and has a structure in which the positive-electrode electrode plate and the negative-electrode electrode plate are laminated via a separator. A carbon-based porous material in a battery case has a methane gas absorption capacity and preferably has a carbon dioxide gas absorption capacity and has a pore volume of 0.3 mL / g or less, for pores having a pore size of 4.5 Å or more. Such a gas absorber for a lithium ion battery generates no gas from reaction with an electrolytic solution of the lithium ion battery and can suitably absorb methane gas generated at the time of abnormality.

Provided are a light-source drive circuit substrate and a light source component which can drive a light source with sufficiently high light source characteristics even when environmental temperature Provided are a light-source drive circuit substrate and a light source component which can drive a light source with sufficiently high light source characteristics even when environmental temperaturegreatly changes, and a display apparatus which includes the light source component. A light-source drive circuit (X) according to the present embodiment includes a controller (C) configured to drive agreatly changes, and a display apparatus which includes the light source component. A light-source drive circuit (X) according to the present embodiment includes a controller (C) configured to drive a first light source (L1) and a second light source (L2) having at least one light source characteristics higher than those of the first light source (L1) when the environmental temperature is equal tofirst light source (L1) and a second light source (L2) having at least one light source characteristics higher than those of the first light source (L1) when the environmental temperature is equal toor below a reference temperature. The controller (C) includes a selector (10) which selects a first driver (D1) for driving the first light source (L1) when the environmental temperature goes above t or below a reference temperature. The controller (C) includes a selector (10) which selects a first driver (D1) for driving the first light source (L1) when the environmental temperature goes above the reference temperature, and selects a second driver (D2) for driving the second light source (L2) when the environmental temperature becomes equal to or below the reference temperature.he reference temperature, and selects a second driver (D2) for driving the second light source (L2) when the environmental temperature becomes equal to or below the reference temperature.