Abstract: An organic light emitting device comprising an anode, a cathode, and a light emitting layer between the anode and the cathode, the light emitting layer comprising a compound of Chemical Formula 1 and a compound of Chemical Formula 2, and having improved driving voltage, efficiency and lifetime is provided.

Abstract: An organic light emitting device comprising an anode; a cathode; and a light emitting layer between the anode and the cathode, the light emitting layer including a compound represented by Chemical Formula 1 and a compound represented by Chemical Formula 2, is provided.

Abstract: An organic light emitting device comprising an anode; a cathode; and a light emitting layer between the anode and the cathode, the light emitting layer comprising a first compound of Chemical Formula 1 and a second compound of Chemical Formula 2: wherein: Ar1 and Ar2 are each independently a substituted or unsubstituted C6-60 aryl; R is deuterium or a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing at least one of N, O and S, provided that carbazolyl and benzocarbazolyl are excluded from R; X is O or S; R1 and R10 are each independently hydrogen, deuterium, or a substituent of Chemical Formula 3, provided that one of R1 to R10 is a substituent of Chemical Formula 3: and the other substituents are as defined in the specification, the device exhibiting improved driving voltage, luminous efficiency and lifetime.

Abstract: A compound of Chemical Formula 1 and an organic light emitting device including the same: wherein: Ar1 is unsubstituted benzophenanthrenyl, chrysenyl, or fluoranthenyl; Ar2 is a substituted or unsubstituted C6-60 aryl, or a substituted or unsubstituted C6-60 heteroaryl containing any one or more of N, O and S; L1, L2, and L3 each independently is a direct bond or a substituted or unsubstituted C6-60 arylene; and R1 and R2 are each independently hydrogen, deuterium, a substituted or unsubstituted C1-12 alkyl, or a substituted or unsubstituted C6-14 aryl. The compound of Chemical Formula 1 can be used as a material for an organic material layer of an organic light emitting device for hole injection, hole transport, hole injection and transport, electron blocking, light emission, electron transport, or electron injection, and can improve the efficiency, achieve low driving voltage and/or improve lifetime characteristics of the device.

Abstract: Provided is a compound of Chemical Formula 1: wherein: L1 to L3 are each independently a single bond or a substituted or unsubstituted C6-60 arylene or C2-60 heteroarylene containing at least one of N, O and S; Ar1 and Ar2 are each independently a substituted or unsubstituted C6-60 aryl; or C2-60 heteroaryl containing at least one of N, O and S, provided that Ar1 and Ar2 are not benzocarbazolyl, and at least one of Ar1 and Ar2 is an azachrysenyl, azabenzo[c]phenanthrenyl, azafluoranthenyl, azatetracenyl, azatetraphenyl, azapyrenyl, azatriphenylenyl, azaaceanthrylene, azaacephenanthrylene, or azapleiadenyl that is substituted or unsubstituted, and the other substituents are as defined in the specification; and an organic light emitting device comprising a first electrode, a second electrode, and one or more organic layers between the first electrode and the second electrode, wherein at least one layer among the organic layers contains the compound of Chemical Formula 1.

Abstract: A novel compound of Chemical Formula 1 and an organic light emitting device including the same: wherein: Ar1 and Ar2 are each independently a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing any one or more heteroatoms selected from the group consisting of N, O and S; at least one of the Ar1 and Ar2 is an aryl with two or more substituted or unsubstituted benzene rings fused, R1 to R7 are each independently hydrogen or deuterium, and at least one of the Ar1 and Ar2 is substituted with deuterium or at least one of the R1 to R7 is deuterium. The compound of Chemical Formula 1 can be used as a material of an organic material layer in an organic light emitting device, and can improve the efficiency, achieve low driving voltage and/or improve lifetime characteristics in the organic light emitting device.

Abstract: An enamel composition, a method for preparing an enamel composition, and a cooking appliance are provided. The enamel composition may include 15 to 50 wt % of silicon dioxide (SiO2); 1 to 10 wt % of boron oxide (B2O3); 10 to 20 wt % of at least one of lithium oxide (Li2O), sodium oxide (Na2O), or potassium oxide (K2O); 1 to 5 wt % of sodium fluoride (NaF); 1 to 10 wt % of zinc oxide (ZnO); and 20 to 50 wt % of at least one of titanium dioxide (TiO2), molybdenum oxide (MoO3), bismuth oxide (Bi2O3), cerium dioxide (CeO2), manganese dioxide (MnO2), or Iron oxide (Fe2O3), which provides an enamel composition with a reduced cleaning time, and facilitates cleaning without soaking in water.

Abstract: A compound represented by Chemical Formula I and an organic light emitting device including the same are provided.

Abstract: Provided is a compound of Chemical Formula 1: wherein: Y is a direct bond, O or S; A1 and A2 are each independently a benzene ring, a naphthalene ring, or ?with the proviso that at least one of them is a naphthalene ring or each X is independently CR1R2, SiR3R4, NR5, O, S, or SO2; R1 to R5 are each independently hydrogen, deuterium, or a substituted or unsubstituted: C1-60 alkyl, C3-60 cycloalkyl, or C6-60 aryl; L1 and L2 are each independently a direct bond, or a substituted or unsubstituted C6-60 arylene or C2-60 heteroarylene; B1 and B2 are each independently *—NR6R7; and R?1 and R?2 are each independently hydrogen, deuterium, halogen, cyano, or a substituted or unsubstituted: C1-60 alky, C1-60 alkoxy, C1-60 haloalkyl, C1-60 haloalkoxy, tri(C1-60 alkyl)silyl, or C6-60 aryl; and and an organic light emitting diode comprising: a first electrode; a second electrode opposite to the first electrode; and at least one organic material layer between the first electrode and the se

Abstract: Disclosed are a facial shape classification method and a denture design device therefor. A facial shape classification method according to an embodiment and a denture design device therefor classify and provide an artificial tooth shape according to the facial shape of a patient, and thus can minimize a user's manipulation, reduce inconvenience, and increase a patient's aesthetic satisfaction.

Abstract: Provided is a system for providing a personal-information-sharing platform service based on a right to data portability, the system including: a user terminal configured to consent to provision of personal information for use of the personal information, input at least one type of personal information for the use of the personal information, and set a price for the at least one type of personal information; a requester terminal configured to request personal information of the user terminal and view a preset item of personal information included in the personal information within a preset information usage period; and a platform-service-providing server including a consent storage unit configured to obtain consent to provision of personal information for use of the personal information from the user terminal, a database storage unit configured to receive at least one piece of personal information from the user terminal and store the received at least one piece of personal information, an auction unit configur

Abstract: Provided is an organic light emitting device comprising: an anode; a cathode; and a light emitting layer between the anode and cathode, the light emitting layer comprising a compound of Chemical Formula 1 and a compound of Chemical Formula 2: wherein any one of Y1 to Y7 is N and the others are CR; Ar1 and Ar2 are each independently a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing at least one of N, O and S; A is fused with an adjacent pentagonal ring and is a benzene ring that is unsubstituted or substituted with deuterium, or a naphthalene ring that is unsubstituted or substituted with deuterium; Ar?1 to Ar?3 are each independently a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing at least one of N, O and S; and the other substituents are as described in the specification.

Abstract: A glass frit according to this application may include a composition of P2O5, V2O5, TeO2, CuO, ZnO, and BaO configured to replace a conventional lead glass composition and enable a low temperature calcination. A coefficient of thermal expansion (CTE) of the glass frit may be matched with that of a glass substrate. The composition may not include an inorganic filler or at least reduce a content of an inorganic filler to reduce or prevent separation and breakage and to improve durability. The glass frit may be used as a paste for a vacuum glass assembly.

Abstract: The present technology relates to an adhesion strength measurement system for a wet electrode specimen that can evaluate the adhesion strength of an electrode specimen impregnated with an electrolyte solution, and an adhesion strength measurement method for a wet electrode specimen using the same. The adhesion strength measurement system includes: a test substrate; an electrode specimen attached to the test substrate; a fixing jig configured to fix the test substrate so that the electrode specimen attached to the test substrate is immersed in an electrolyte solution; and an adhesion strength measurement unit configured to measure a force at which a mixture layer of the electrode specimen is peeled off by applying a tensile force to the gripped electrode specimen, the adhesion strength measurement unit including a grip part configured to grip one region of the electrode specimen.

Abstract: Provided is an organic light emitting device that includes a light emitting layer comprising a compound of Chemical Formula 1 and a compound of Chemical Formula 2: wherein any one of Y1 to Y7 is N, and the others are CR; Ar1 and Ar2 are each independently a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing at least one heteroatom selected from the group consisting of N, O and S; any one of A1 to A10 is a substituent represented by Chemical Formula 2-1 below, and the others are each independently hydrogen or deuterium: wherein Ar?1 and Ar?2 are each independently a substituted or unsubstituted C6-60 aryl or a C2-60 heteroaryl containing at least one heteroatom selected from the group consisting of substituted or unsubstituted N, O and S, and all other substituents are as defined in the specification.

Abstract: Provided is a novel compound of Chemical Formula 1 or Chemical Formula 2: wherein X1 and X2 are each independently O or S; each R1 is independently hydrogen, deuterium, a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing any one or more of N, O, and S; L is a direct bond or a substituted or unsubstituted C6-60 arylene or C2-60 heteroarylene containing any one or more of N, O, and S; and Z is the following Chemical Formula 3 or Chemical Formula 4: wherein each A is independently a substituted or unsubstituted C6-60 aromatic ring or C2-60 heteroaromatic ring containing any one or more of N, O, and S fused with an adjacent five-membered ring; and the other substituents are as defined in the specification; and an organic light emitting device including the same.

Abstract: Disclosed is an operation method of a neural network including a first network and a second network, the method including acquiring state information output from the first network based on input information, determining whether the state information satisfies a condition using the second network, iteratively applying the state information to the first network in response to determining that the state information does not satisfy the condition, and outputting the state information in response to determining that the state information satisfy the condition.

Abstract: A displacement meter including a photonic crystal color conversion film configured to change in color in accordance with a deformation thereof, and a mechanism connected to the photonic crystal color conversion film is disclosed. The displacement meter may not only measure a pressure in a severe environment such as an outdoor environment or an underwater environment, but also may easily and conveniently measure deformation of a construction, without using a separate power supply device or separate measurement equipment.

Abstract: Provided is a novel compound of Chemical Formula 1: wherein Ar1 and Ar2 are each independently a substituted or unsubstituted C6-15 aryl, R1 and R2 are each independently hydrogen or deuterium, n1 is an integer of 1 to 7, and n2 is an integer of 1 to 6. Also provided is an organic light-emitting device including the compound. When a compound of Chemical Formula 1 is used as a material for hole injection, hole transport, light emission, or electron transport and injection of an organic electroluminescent device, a device having low voltage, high efficiency, and long lifetime characteristics can be obtained.

Abstract: An organic light emitting device having improved driving voltage, efficiency and lifetime is provided. The organic light emitting device comprises an anode, a cathode, and a light emitting layer between the anode and the cathode, and the light emitting layer comprises a compound represented by Chemical Formula 1, and a compound represented by Chemical Formula 2 or 3.