Abstract: Provided are a hole machining apparatus for an optical film, comprising: a clamping part for fixing a plurality of optical films in stacked laminated state; and a machining part for performing a hole operation on a predetermined region of the plurality of optical films so as to sequentially pass through the optical films along the laminated direction in a state where the optical films are fixed to the clamping part, wherein upon the hole operation, the machining part comprises a drill part provided to perform a primary hole machining operation and a bite unit provided to perform a secondary hole operation in the primary hole operation region. Also provided is a hole machining method for an optical film, comprising clamping a plurality of laminated optical films at a predetermined pressure in the hole machining apparatus.

Abstract: Improved electrochemical yarn energy harvesters that convert mechanical energy to electrical energy. These harvesters include an ionically conducting electrolyte, and an electronically conducting material, and a material that can undergo charge injection, which can also be the electronically conducting material. At least one device electrode is either twisted, twisted and coiled, or twisted and plied.

Abstract: The present disclosure relates to a novel organic light emitting material and an organic light emitting device including the same.

Abstract: An organic light emitting device including a first electrode; a second electrode provided to face the first electrode; and an organic material layer having one, two or more layers provided between the first electrode and the second electrode, wherein the organic material layer includes a first organic material layer including a compound of Chemical Formula 1 and a second organic material layer including a compound of Chemical Formula 2.

Abstract: A proximity sensor is provided with multiple channels and a proximity sensor chip (IC) connected to the multiple channels through a sensing line. The proximity sensor chip (IC) includes an internal temperature sensor, senses a first sensing value through the multiple channels, senses a second sensing value through the internal temperature sensor, and compensates the first sensing value through addition or subtraction of the second sensing value with respect to the first sensing value. The internal temperature sensor includes: a clock signal generator including a first oscillator and generating first clock signals variable according to temperature characteristics; and a temperature compensator generating second clock signals according to a setting condition corresponding to the first clock signals generated from the clock signal generator and outputting the second sensing value by counting the second clock signals through a second oscillator generating reference clock signals independent of temperature change.

Abstract: Provided is an electricity generating module. The electricity generating module comprises: a cylinder; a piston that reciprocates inside the cylinder; and a power generating fiber of which one end is fixed to the piston and the other end is fixed to the cylinder, and of which the length varies according to the reciprocating of the piston, wherein, as the length of the power generating fiber varies, a potential value of the power generating fiber varies, and electricity is generated by using the varied potential value of the power generating fiber.

Abstract: The present disclosure provides a compound represented by the following Chemical Formula 1, and an organic light emitting device including the same. The compound is used as a material of an organic material layer of the organic light emitting device.

Abstract: Air purification apparatuses and methods are provided. An air purification apparatus includes an air purification chamber and a supply chamber coupled to the air purification chamber. The air purification chamber includes a purification reactor, a first electron accelerator that irradiates a first electron beam to the purification reactor, and a second electron accelerator that irradiates a second electron beam to the purification reactor. The supply chamber includes a power supply that supplies power to each of the first electron accelerator and the second electron accelerator. The second electron accelerator is opposite to the first electron accelerator across the purification reactor.

Abstract: A seat headrest includes: a pad assembly; a main cover surrounding a rear side of the pad assembly; an upper guide coupled to the main cover and provided with an upward/downward movement guide groove formed in the upper guide and elongated upward/downward; a post stay including an upper portion inserted in the upward/downward movement guide groove; and a post holding guide, in which the lower portion of the post stay is inserted and held and which is held to a seat back frame.

Abstract: A proximity sensor is provided with multiple channels and a proximity sensor chip (IC) connected to the multiple channels through a sensing line. The proximity sensor chip (IC) includes an internal temperature sensor, senses a first sensing value through the multiple channels, senses a second sensing value through the internal temperature sensor, and compensates the first sensing value through addition or subtraction of the second sensing value with respect to the first sensing value. The internal temperature sensor includes: a clock signal generator including a first oscillator and generating first clock signals variable according to temperature characteristics; and a temperature compensator generating second clock signals according to a setting condition corresponding to the first clock signals generated from the clock signal generator and outputting the second sensing value by counting the second clock signals through a second oscillator generating reference clock signals independent of temperature change.

Abstract: Provided is an amine based compound of Chemical Formula 1: and an organic electroluminescent device comprising the same. The amine based compound can be used as a material of an organic material layer of an organic electroluminescent device, and can achieve an improvement of the efficiency, a low driving voltage and/or an improvement of the lifetime characteristic when applied to the organic electroluminescent device.

Abstract: A seat headrest includes: a pad assembly; a main cover surrounding a rear side of the pad assembly; an upper guide coupled to the main cover and provided with an upward/downward movement guide groove formed in the upper guide and elongated upward/downward; a post stay including an upper portion inserted in the upward/downward movement guide groove; and a post holding guide, in which the lower portion of the post stay is inserted and held and which is held to a seat back frame.

Abstract: An organic light emitting device comprising a light emitting layer including a compound of Chemical Formula 1, and a first organic material layer including a compound of Chemical Formula 2.

Abstract: Provided is an electricity generating module. The electricity generating module comprises: a cylinder; a piston that reciprocates inside the cylinder; and a power generating fiber of which one end is fixed to the piston and the other end is fixed to the cylinder, and of which the length varies according to the reciprocating of the piston, wherein, as the length of the power generating fiber varies, a potential value of the power generating fiber varies, and electricity is generated by using the varied potential value of the power generating fiber.

Abstract: An organic light emitting device including a first electrode; a second electrode provided to face the first electrode; and an organic material layer having one, two or more layers provided between the first electrode and the second electrode, wherein the organic material layer includes a first organic material layer including a compound of Chemical Formula 1 and a second organic material layer including a compound of Chemical Formula 2.

Abstract: Provided are a hole machining apparatus for an optical film, comprising: a clamping part for fixing a plurality of optical films in stacked laminated state; and a machining part for performing a hole operation on a predetermined region of the plurality of optical films so as to sequentially pass through the optical films along the laminated direction in a state where the optical films are fixed to the clamping part, wherein upon the hole operation, the machining part comprises a drill part provided to perform a primary hole machining operation and a bite unit provided to perform a secondary hole operation in the primary hole operation region. Also provided is a hole machining method for an optical film, comprising clamping a plurality of laminated optical films at a predetermined pressure in the hole machining apparatus.

Abstract: Yarn energy harvesters containing conducing nanomaterials (such as carbon nanotube (CNT) yarn harvesters) that electrochemically convert tensile or torsional mechanical energy into electrical energy. Stretched coiled yarns can generate 250 W/kg of peak electrical power when cycled up to 24 Hz, and can generate up to 41.2 J/kg of electrical energy per mechanical cycle. Unlike for other harvesters, torsional rotation produces both tensile and torsional energy harvesting and no bias voltage is required, even when electrochemically operating in salt water. Since homochiral and heterochiral coiled harvester yarns provide oppositely directed potential changes when stretched, both contribute to output power in a dual-electrode yarn.

Abstract: The present disclosure provides a compound represented by the following Chemical Formula 1, and an organic light emitting device including the same. The compound is used as a material of an organic material layer of the organic light emitting device.

Abstract: Provided is an organic light-emitting diode comprising: a positive electrode; a negative electrode provided to face the positive electrode; a light-emitting layer provided between the positive electrode and the negative electrode; a hole adjusting layer having one or more layers provided between the positive electrode and the light-emitting layer, in which one or more layers of the hole adjusting layers includes at least one compound of Formulae 1 or Formula 2, and the light-emitting layer includes a compound of Formula 3: wherein: G1 to G4 are each independently a substituted or unsubstituted alkyl or aryl group; L1 to L7 are each independently a direct bond, or a substituted or unsubstituted arylene or heteroarylene group; at least one of X1 to X3 is N, and any remaining is each CR8; and Ar1 to Ar6 are each independently a substituted or unsubstituted aryl or heteroaryl group, or Ar2 and Ar3 together form a substituted or unsubstituted hetero ring.

Abstract: Yarn energy harvesters containing conducing nanomaterials (such as carbon nanotube (CNT) yarn harvesters) that electrochemically convert tensile or torsional mechanical energy into electrical energy. Stretched coiled yarns can generate 250 W/kg of peak electrical power when cycled up to 24 Hz, and can generate up to 41.2 J/kg of electrical energy per mechanical cycle. Unlike for other harvesters, torsional rotation produces both tensile and torsional energy harvesting and no bias voltage is required, even when electrochemically operating in salt water. Since homochiral and heterochiral coiled harvester yarns provide oppositely directed potential changes when stretched, both contribute to output power in a dual-electrode yarn.