Abstract: An acoustic wave resonator includes a resonating part disposed on and spaced apart from a substrate by a cavity, the resonating part including a membrane layer, a first electrode, a piezoelectric layer, and a second electrode that are sequentially stacked. 0 ???Mg?170 ? may be satisfied, ?Mg being a difference between a maximum thickness and a minimum thickness of the membrane layer disposed in the cavity.

Abstract: A vent valve for a closed tank, the vent valve being provided in an upper surface of the closed tank storing liquid, may include an upper housing provided with an upper air hole disposed outside the closed tank; a lower housing provided with a lower air hole disposed inside the closed tank; and a valve core provided in a housing space area surrounded by the upper housing and the lower housing and providing a ventilation path through which only gas passes between the upper air hole and the lower air hole.

Abstract: A conference system and a method for interworking between an audio conference and a web conference in the system are provided. The method for interworking between an audio conference and a web conference according to one embodiment of the present disclosure includes recognizing, at an audio conference server, an access of a host terminal to an audio conference and activating the audio conference, transmitting, at the audio conference server, a notification of activation of the audio conference to a web conference server, and activating, at the web conference server, a web conference corresponding to the audio conference according to the notification of activation of the audio conference.

Abstract: A bulk acoustic resonator includes: a substrate including an upper surface on which a substrate protection layer is disposed; and a membrane layer forming a cavity together with the substrate, wherein a thickness deviation of either one or both of the substrate protection layer and the membrane layer is 170 ? or less.

Abstract: A display panel includes: a light emitting device to generate light; a plurality of color conversion patterns including: a first color conversion pattern including first scattering particles dispersed in the first color conversion pattern and configured to scatter the light of the light emitting device; and a second color conversion pattern including second scattering particles dispersed in the second color conversion pattern and configured to scatter the light of the light emitting device; a plurality of color filters including: a first color filter overlapping the first color conversion pattern; and a second color filter overlapping the second color conversion pattern; and a single, low index of refraction layer substantially continuously extending in the surface direction to overlap the first and the second color conversion patterns. The single, low index of refraction layer has a refractive index lower than refractive indexes of the first and second color conversion patterns.

Abstract: Provided are a conference access method and a terminal for performing the same. A terminal according to an embodiment of the present disclosure includes: an interface configured to receive a plurality of different access addresses for access to a conference from a conference server; an access attempter configured to attempt to simultaneously access the conference via each of the plurality of access addresses; and a priority allocator configured to collect an access result for each of the plurality of access addresses, and to allocate an access priority to each of the plurality of access addresses based on the access result, wherein the access attempter attempts to access the conference via an access address having a highest access priority among the plurality of access addresses.

Abstract: A device for opening and closing a urea inlet for a vehicle is configured to close an inlet of a urea filler neck in a push manner and to open the same in a pull manner, preventing a user from touching the vehicle body or peripheral portions when opening and closing the inlet.

Abstract: Disclosed are an undercover for vehicles with high elasticity and rigidity and a method of manufacturing the same. The undercover for vehicles with high elasticity and rigidity may include a needle-punched nonwoven fabric having a multi-layer structure of felt layers including a first PET fiber and a low-melting-point PET fiber, and each of the felt layers may have improved tensile strength and have optimized fiber alignment, to thereby improve the binding between fibers, mechanical rigidity and elasticity, as well as to reduce the weight of components, improve durability and secure harmlessness and inline workability.

Abstract: A terminal for connecting to a conference via a network according to an embodiment of the present invention includes an image acquisition unit configured to acquire each participant image received from a plurality of other terminals connected to the conference, a network monitoring unit configured to monitor performance of the network, an image analyzer configured to analyze the each participant image to acquire one or more of image information, speech information, and quality information of the each participant image when the performance of the network changes, and a quality controller configured to change the quality of at least some of the participant images according to the analysis result of the each participant image.

Abstract: A display device including: a first substrate; a transflective layer disposed on a surface of the first substrate; a wavelength conversion layer disposed on the transflective layer; a capping layer disposed on the wavelength conversion layer; a first polarizing layer disposed on the capping layer; and a second polarizing layer disposed on the other surface of the first substrate. The first polarizing layer and the second polarizing layer have different polarization directions.

Abstract: Provided is a compound of Chemical Formula 1: wherein: among X1 to X4, one of X1 and X2, X2 and X3, or X3 and X4 are linked with * in the following Chemical Formula 2, and of the remaining two, one is hydrogen, and the other is R3: R1 and R2 are each independently hydrogen, deuterium, halogen, cyano, amino, a substituted or unsubstituted C1-60 alkyl, a substituted or unsubstituted C1-60 haloalkyl, a substituted or unsubstituted C1-60 alkoxy, a substituted or unsubstituted C1-60 haloalkoxy, a substituted or unsubstituted C3-60 cycloalkyl, a substituted or unsubstituted C2-60 alkenyl, a substituted or unsubstituted C6-60 aryl, a substituted or unsubstituted C6-60 aryloxy, or a substituted or unsubstituted C2-60 heterocyclic group containing one or more heteroatoms selected from the group consisting of N, O and S; one of R3 is hydrogen, and the other is —Si(R4)(R5)(R6), R4 to R6 are each independently hydrogen, deuterium, cyano, a substituted or unsubstituted C1-60 alkyl, a substituted or unsubst

Abstract: The present specification relates to an organic electronic device in which a novel compound that may improve a life-span, efficiency, a driving voltage drop, and stability of the organic electronic device is contained in an organic material layer.

Abstract: A color conversion panel includes a substrate and a red color conversion layer, a green color conversion layer, and a transmission layer which are disposed on the substrate. The transmission layer includes at least one of a pigment and a dye.

Abstract: An automatic opening and closing device for a fuel inlet of a vehicle may include a cap cover mounted at the fuel inlet of the vehicle, a fuel cap pivotably mounted at the cap cover and configured to selectively open or close the fuel inlet by being pivoted inside the fuel inlet, and a fuel cap operating mechanism mounted in the fuel inlet and configured, when the fuel door is closed, to pivot the fuel cap by being pressed by the fuel door to close the fuel inlet, and, when the fuel door is opened, pivot the fuel cap to open the fuel inlet according to release of pressing by the fuel door.

Abstract: A bulk acoustic wave resonator includes a substrate including a first via and a second via, a lower electrode connection member, a lower electrode, a piezoelectric layer, an upper electrode, and an upper electrode connection member spaced apart from the lower electrode connection member. The lower electrode, the piezoelectric layer, and the upper electrode constitute a resonant portion. The lower electrode connection member electrically connects the lower electrode to the first via and supports a first edge portion of the resonant portion. The upper electrode connection member electrically connects the upper electrode to the second via and supports a second edge portion of the resonant portion. Either one or both of the upper electrode connection member and the lower electrode connection member includes a respective extension portion connected to a respective one of the first via and the second via that is disposed below the resonant portion.

Abstract: A MEMS device includes a substrate, a MEMS element portion disposed on a surface of the substrate, a cap having a cavity formed to oppose the MEMS element portion, and a diffusion prevention layer formed on at least a portion of the cap, wherein at least one of the cap and the substrate includes a bonding layer disposed outside of the cavity, and wherein the cap includes a spreading prevention portion disposed between the bonding layer and the cavity and having a V-shape in cross-section.

Abstract: A liquid crystal display device includes a light source member and a display panel disposed on the light source member. The display panel includes a first substrate and a second substrate facing each other, a liquid crystal layer, and a color conversion layer that is disposed between the liquid crystal layer and the first substrate. The color conversion layer includes a light emitter and a low refractive body having a refractive index of about 1.0 to about 1.3. The liquid crystal display device exhibits high color reproducibility and improves external light extraction efficiency.

Abstract: A terminal for connecting to a conference via a network according to an embodiment of the present invention includes an image acquisition unit configured to acquire each participant image received from a plurality of other terminals connected to the conference, a network monitoring unit configured to monitor performance of the network, an image analyzer configured to analyze the each participant image to acquire one or more of image information, speech information, and quality information of the each participant image when the performance of the network changes, and a quality controller configured to change the quality of at least some of the participant images according to the analysis result of the each participant image.

Abstract: An acoustic wave resonator includes a resonating part disposed on and spaced apart from a substrate by a cavity, the resonating part including a membrane layer, a first electrode, a piezoelectric layer, and a second electrode that are sequentially stacked. 0 ???Mg?170 ? may be satisfied, ?Mg being a difference between a maximum thickness and a minimum thickness of the membrane layer disposed in the cavity.

Abstract: A photosensitive resin composition according to an exemplary embodiment of the present invention includes: a nanophosphor; a photo-polymerization initiator including an acetophenone-based initiator; and a photo-polymerization compound, wherein the photo-polymerization initiator further includes at least one among a thioxanthone-based initiator, an oxime-based initiator, and a benzophenone-based initiator.