Abstract: The present invention relates to a carbon-based precious metal-transition metal composite catalyst and a preparation method therefor, and more particularly, to a catalyst synthesis method in which, when preparing a high-content precious metal-transition metal composite catalyst, a catalyst having uniform particles and composition can be prepared, and cyclohexane dimethanol (CHDM) is efficiently produced by the hydrogenation reaction of cyclohexane dicarboxylic acid (CHDA) in an aqueous solution.

Abstract: Provided are a noble metal-transition metal complex catalyst supported on a carbon-coated silica-alumina support and a preparation method therefor, the catalyst being capable of obtaining a fast reaction rate and catalyst stability, as compared to a conventional catalyst, when cyclohexane dimethanol (CHDM) production is carried out by a cyclohexane dicarboxylic acid (CHDA) hydrogenation reaction in an aqueous solution by using a carbon-coated supported catalyst.

Abstract: The present invention relates to a multi-band optical filtering method and apparatus and to a multi-band optical filtering method and apparatus capable of filtering wavelengths of two or more bands in order to create a multi-wavelength image of a subject. In the present invention, the optical filtering apparatus for creating a multi-wavelength image of a subject comprises a filter unit having a plurality of sub filter units comprising a first sub filter unit through which a first wavelength band passes and a second sub filter unit through which a second wavelength band, which is different from the first wavelength band, passes, wherein while the light generated in a light source passes through the filter unit, the filter unit filters the light such that an intensity of the first wavelength band is dominant in a first region, and an intensity of the second wavelength band is dominant in a second region.

Abstract: The present invention relates to a multi-band optical filtering method and apparatus and to a multi-band optical filtering method and apparatus capable of filtering wavelengths of two or more bands in order to create a multi-wavelength image of a subject. In the present invention, the optical filtering apparatus for creating a multi-wavelength image of a subject comprises a filter unit having a plurality of sub filter units comprising a first sub filter unit through which a first wavelength band passes and a second sub filter unit through which a second wavelength band, which is different from the first wavelength band, passes, wherein while the light generated in a light source passes through the filter unit, the filter unit filters the light such that an intensity of the first wavelength band is dominant in a first region, and an intensity of the second wavelength band is dominant in a second region.

Abstract: A fingerprint sensor includes a pixel array, an analog-to-digital converter, and a reference signal generator. The pixel array includes a plurality of unit pixels arranged in rows and columns, and each of the plurality of unit pixels generates an analog signal by detecting a fingerprint of a user. The analog-to-digital converter performs an analog-to-digital conversion operation on the analog signal to generate a digital signal. The analog-to-digital converter is configured to perform the analog-to-digital conversion based on a reference signal. The reference signal generator generates the reference signal such that the reference signal decreases at a first rate from a start voltage, and adjusts a magnitude of the start voltage based on the digital signal.

Abstract: A fingerprint recognition device includes a display, a touch sensor panel (TSP) which senses a touch, and a fingerprint recognition integrated circuit (FPIC) which scans a fingerprint. The FPIC includes a pixel including a photoelectric element which receives light reflected by the fingerprint, a low noise amplifier (LNA) which outputs a signal voltage by converting an electric charge received from the photoelectric element, and an analog-to-digital converter (ADC) which converts the signal voltage into a digital signal. The ADC includes a variable reference voltage generator which provides a variable reference voltage, a comparator which adds the variable reference voltage to the signal voltage, performs correlated double sampling on the result of the addition, and outputs a comparison signal by comparing the result of the correlated double sampling with a ramp voltage, and a counter which outputs the digital signal by counting the comparison signal.

Abstract: Provided is a technology for measuring a user's blood pressure by using light sources, in which the blood pressure measuring apparatus includes: a light emitter configured to emit one or more lights having different penetration characteristics toward a user; a light receiver configured to receive the lights that have penetrated through the user, and acquire photo-plethysmography (PPG) signals from the received lights; and a blood pressure measurer configured to measure a phase difference between the acquired PPG signals, and measure a blood pressure based on the measured phase difference.

Abstract: A method for acquiring capacitance of a capacitive touch panel includes acquiring a selected capacitance value at a selected point among a plurality of points at which a plurality of capacitances are present, in the capacitive touch panel, determining the selected capacitance value as a reference capacitance value, and performing a multi-driving using a balanced code, and acquiring a capacitance value from at least one point among the plurality of points using the reference capacitance value.

Abstract: A fingerprint recognition device includes a display, a touch sensor panel (TSP) which senses a touch, and a fingerprint recognition integrated circuit (FPIC) which scans a fingerprint. The FPIC includes a pixel including a photoelectric element which receives light reflected by the fingerprint, a low noise amplifier (LNA) which outputs a signal voltage by converting an electric charge received from the photoelectric element, and an analog-to-digital converter (ADC) which converts the signal voltage into a digital signal. The ADC includes a variable reference voltage generator which provides a variable reference voltage, a comparator which adds the variable reference voltage to the signal voltage, performs correlated double sampling on the result of the addition, and outputs a comparison signal by comparing the result of the correlated double sampling with a ramp voltage, and a counter which outputs the digital signal by counting the comparison signal.

Abstract: A method for acquiring capacitance of a capacitive touch panel includes acquiring a selected capacitance value at a selected point among a plurality of points at which a plurality of capacitances are present, in the capacitive touch panel, determining the selected capacitance value as a reference capacitance value, and performing a multi-driving using a balanced code, and acquiring a capacitance value from at least one point among the plurality of points using the reference capacitance value.

Abstract: Provided are a fingerprint controller for driving a fingerprint sensing array in a touchscreen divided by at least a touch sensing region and a fingerprint sensing region, a method of operating the fingerprint controller, and a driver integrated circuit for driving the touchscreen including the fingerprint sensing array. The method includes: receiving a reference timing signal from an external module; generating a fingerprint sensing timing signal for driving the fingerprint sensing array in synchronization with the reference timing signal; and driving the fingerprint sensing array based on the fingerprint sensing timing signal.

Abstract: A fingerprint sensor includes a pixel array, an analog-to-digital converter, and a reference signal generator. The pixel array includes a plurality of unit pixels arranged in rows and columns, and each of the plurality of unit pixels generates an analog signal by detecting a fingerprint of a user. The analog-to-digital converter performs an analog-to-digital conversion operation on the analog signal to generate a digital signal. The analog-to-digital converter is configured to perform the analog-to-digital conversion based on a reference signal. The reference signal generator generates the reference signal such that the reference signal decreases at a first rate from a start voltage, and adjusts a magnitude of the start voltage based on the digital signal.

Abstract: A photocurable coating composition includes 50 to 150 parts by weight of a urethane acrylate oligomer having a number average molecular weight of 1300 to 1700 g/mol and 9 functional groups, 50 to 150 parts by weight of an acrylate monomer, 10 to 15 parts by weight of a photoinitiator, and 1 to 3 parts by weight of a surfactant.

Abstract: A fingerprint sensor includes a pixel array, an analog-to-digital converter, and a reference signal generator. The pixel array includes a plurality of unit pixels arranged in rows and columns, and each of the plurality of unit pixels generates an analog signal by detecting a fingerprint of a user. The analog-to-digital converter performs an analog-to-digital conversion operation on the analog signal to generate a digital signal. The analog-to-digital converter is configured to perform the analog-to-digital conversion based on a reference signal. The reference signal generator generates the reference signal such that the reference signal decreases at a first rate from a start voltage, and adjusts a magnitude of the start voltage based on the digital signal.

Abstract: A grip-type blood pressure measuring apparatus and a method of operating the apparatus are provided. The grip-type blood pressure measuring apparatus may include a pulse wave measuring sensor array comprising a plurality of pulse wave measuring sensors that are spaced apart from each other at a predetermined interval; and a blood pressure measurer configured to select a first pulse wave and a second pulse wave from among a plurality of pulse waves measured by the plurality of pulse wave measuring sensors, analyze the selected first pulse wave and second pulse wave, and determine a blood pressure based on an analysis result of the first pulse wave and the second pulse wave.

Abstract: A fingerprint sensor includes a pixel array and a controller. The pixel array includes a plurality of unit pixels arranged in rows and columns, each of the plurality of unit pixels including, a sensing electrode configured to form a detection capacitance with a finger, a signal generation circuit configured to output an analog signal through a column line based on the detection capacitance, and a protection circuit configured to control a voltage transfer between the sensing electrode and a common line. The controller is configured to control the protection circuit in each of the plurality of unit pixels to transfer a voltage at the sensing electrode of an active unit pixel of the plurality of unit pixels to the sensing electrode in at least one protection unit pixel of the plurality of unit pixels through the common line.

Abstract: A sensor for increasing security using biometric data, a mobile device including the same, and an authentication method of the mobile device are provided. The sensor includes a fingerprint sensor configured to detect fingerprint data of a user contacting a fingerprint acquisition region, a plurality of electrodes, and a bio sensor connected to the electrodes to detect at least one type of biometric data. A first electrode among the electrodes is located such that a finger of the user contacts the first electrode when the finger of the user is in contact with the fingerprint acquisition region.

Abstract: A unit pixel of a fingerprint sensor is provided. The unit pixel includes a sensing electrode located to form a capacitance with an object touching a touch surface, a first switch connected between a first node and a second node to transmit at least one driving voltage input through the second node, the first node connected to the sensing electrode, the switch configured to the sensing electrode, an amplifier configured to receive a signal from the sensing electrode and amplify the signal, and a first capacitor connected between a first input terminal and an output terminal of the amplifier, the first capacitor configured to transmit the signal from the sensing electrode to the output terminal. The amplifier is configured to output a different output voltage according to the at least one driving based on an operation of the first switch.

Abstract: Provided are a fingerprint controller for driving a fingerprint sensing array in a touchscreen divided by at least a touch sensing region and a fingerprint sensing region, a method of operating the fingerprint controller, and a driver integrated circuit for driving the touchscreen including the fingerprint sensing array. The method includes: receiving a reference timing signal from an external module; generating a fingerprint sensing timing signal for driving the fingerprint sensing array in synchronization with the reference timing signal; and driving the fingerprint sensing array based on the fingerprint sensing timing signal.

Abstract: An operating method of an optical fingerprint sensor, an operating method of an electronic device including the optical fingerprint sensor, and a display device including the optical fingerprint sensor are disclosed. The method of operating a fingerprint sensor, wherein the fingerprint sensor senses a fingerprint image based on light reflected from a fingerprint, may include transmitting a first signal indicating a first request to turn on light emission, to a display driving circuit which drives a display panel disposed on the fingerprint sensor, scanning an object on the display panel, based on light irradiated from the display panel, and transmitting, to the display driving circuit, a second signal indicating a second request to turn off the light emission.