Abstract: Provided are optical compositions comprising quantum dots and glass fiber segments dispersed in a matrix material, the compositions exhibiting reduced aggregation between quantum dots. The disclosed compositions may be extruded into film form, and may be used in display devices.

Abstract: Provided are compositions comprising quantum dots bearing organic ligands, the quantum dots being disposed onto polymeric particles, and the polymeric particles in turn being dispersed into a medium. The compositions are characterized by enhanced dispersion of the quantum dots and improve the performance of display devices that include the compositions.

Abstract: An apparatus for identifying a fake fingerprint includes a housing, a prism, a first light source unit, a second light source unit, a sensor unit and a control unit. The prism is disposed in the internal space of the housing. The first light source unit irradiates light in the internal space to allow the light to pass through the prism. The second light source unit irradiates light to allow the light not to pass the prism. The sensor unit acquires a first image through the first light source unit and a second image through the second light source unit. The control unit identifies a fake fingerprint on the basis of a result acquired by comparing the first image and the second image. The housing includes a light irradiating unit that fixes and supports the second light source unit to form a predetermined angle with the fingerprint contact surface.

Abstract: A clock generation apparatus includes a pulse generator configured to generate a pulse signal and a selection signal using a reference clock signal, a delay line circuit, a switch and a controller. The delay line circuit selects, as an input signal to a delay path, the pulse signal or a fed back portion of a delay clock signal at an output of the delay path, where the selection is based on the selection signal; and thereby generates the delay clock signal. The switch switches a first voltage or a second voltage to the delay line circuit for its operation, where the first voltage further provides power to the pulse generator. The second voltage is generated based on a phase difference between the reference clock signal and the delay clock signal. The controller generates a switch control signal based on a frequency of the delay clock signal.

Abstract: Provided are a radio-frequency integrated chip (RFIC) and a wireless communication device including the RFIC. An RFIC configured to receive a carrier aggregated receive signal having at least first and second carrier signals may include first and second carrier receivers configured to generate, from the receive signal, first and second digital carrier signals, respectively. A phase-locked loop (PLL) may output a first frequency signal having a first frequency to the first carrier receiver and the second carrier receiver. The first and second carrier receivers may include first and second analog mixers, respectively, for translating frequencies of the receive signal, using the first frequency signal and the second frequency signal, respectively. Each of the first and second carrier receivers may further include a digital mixer for further translating the frequencies of the receive signal in the digital domain.

Abstract: A sensing circuit in a device having a moving body in which a unit to be detected including first and second pattern units spaced apart from each other is formed includes an oscillation circuit unit including first and second oscillation circuits fixedly mounted on a substrate spaced apart from the unit to be detected, including, respectively, first and second sensing coils having first and second inductance values depending on areas of overlap between the first and second sensing coils and the first and second pattern units and outputting, respectively, first and second sensed oscillation signals based on the first and second inductance values; and a sensing circuit outputting an output signal having movement information of the moving body based on each period count value for each of the first and second sensed oscillation signals using a reference oscillation signal.

Abstract: An actuator of a camera module includes a position detector configured to generate a feedback signal based on a detected position of a lens barrel; and a driver configured to drive the lens barrel based on a difference between an input signal indicating a target position of the lens barrel and the feedback signal, wherein the driver includes a signal adjuster configured to calculate an offset between the target position of the lens barrel and an actual position of the lens barrel, and apply the input signal to a calibration function based on the offset to generate a calibrated input signal.

Abstract: A method and device for determining a distance are provided. The method includes determining a first binocular distance between two eyes of a user by using a first image captured through a camera of the device, determining a second binocular distance between the two eyes of the user by using a second image captured through the camera, determining a distance from the camera to the two eyes of the user based on the first binocular distance and the second binocular distance, and providing an image to a display of the device, the image converted according to the distance from the camera to the two eyes of the user.

Abstract: An apparatus for identifying a fake fingerprint includes a housing, a prism, a first light source unit, a second light source unit, a sensor unit and a control unit. The prism is disposed in the internal space of the housing. The first light source unit irradiates light in the internal space to allow the light to pass through the prism. The second light source unit irradiates light to allow the light not to pass the prism. The sensor unit acquires a first image through the first light source unit and a second image through the second light source unit. The control unit identifies a fake fingerprint on the basis of a result acquired by comparing the first image and the second image. The housing includes a light irradiating unit that fixes and supports the second light source unit to form a predetermined angle with the fingerprint contact surface.

Abstract: An apparatus for sensing a rotating body includes a unit to be detected, including a first pattern portion having at least one first pattern and a second pattern portion having at least one second pattern, and configured to rotate around a rotating shaft, a sensor module comprising a first sensor disposed opposite to the first pattern portion and a second sensor disposed opposite to the second pattern portion, and a rotation information calculator configured to calculate a difference value by differentiating output signals of the first sensor and the second sensor, and to compare comparison values, determined according to a target sensing angle and a size of the first pattern and the second pattern, with the difference value.

Abstract: A camera module actuator includes, a magnet, a coil, a driver, and a position estimating processor. The coil is disposed to face the magnet. The driver is configured to move the magnet by applying a driving signal to the coil. The position estimating processor is configured to estimate a position of the magnet from an oscillating signal. A frequency of the oscillating signal varies according to a movement of the magnet.

Abstract: An apparatus for manufacturing an organic material includes an outer tube including an internal accommodating space, and at least one loading inner tube and at least one collecting inner tube disposed in the accommodation space, the loading inner tube including a mesh boat disposed in a first direction in which the loading inner tube extends.

Abstract: An image forming apparatus capable of detecting a development nip disengaging error and a method of detecting a development nip disengaging error are provided. According to an example method, a test pattern is formed on a photoconductor of an image forming apparatus, the test pattern transferred to an intermediate transfer belt is detected through a sensor from a time when an operation of an adjusting member moving a developing roller is controlled such that the developing roller moves from a disengaging position where the developing roller is spaced from the photoconductor to disengage a development nip from the photoconductor to a developing position where the developing roller is in contact with the photoconductor to form the development nip, and whether the development nip disengaging error occurred is determined based on the detected test pattern.

Abstract: Provided are a radio-frequency integrated chip (RFIC) and a wireless communication device including the RFIC. An RFIC configured to receive a carrier aggregated receive signal having at least first and second carrier signals may include first and second carrier receivers configured to generate, from the receive signal, first and second digital carrier signals, respectively. A phase-locked loop (PLL) may output a first frequency signal having a first frequency to the first carrier receiver and the second carrier receiver. The first and second carrier receivers may include first and second analog mixers, respectively, for translating frequencies of the receive signal, using the first frequency signal and the second frequency signal, respectively. Each of the first and second carrier receivers may further include a digital mixer for farther translating the frequencies of the receive signal in the digital domain.

Abstract: A variable capacitor is provided. The variable capacitor includes a plurality of capacitor segments. The plurality of capacitor segments are connected in parallel within the variable capacitor. When a plurality of candidate capacitances allowable to the variable capacitor according to a connection state of the plurality of capacitor segments connected in parallel are sorted in a magnitude sequence, the plurality of candidate capacitances form a geometric series. The variable capacitor is used for a Voltage Controlled Oscillator (VCO), and the VCO is used for a Phase Locked Loop (PLL).

Abstract: An image forming apparatus capable of detecting a development nip disengaging error and a method of detecting a development nip disengaging error are provided. According to an example method, a test pattern is formed on a photoconductor of an image forming apparatus, the test pattern transferred to an intermediate transfer belt is detected through a sensor from a time when an operation of an adjusting member moving a developing roller is controlled such that the developing roller moves from a disengaging position where the developing roller is spaced from the photoconductor to disengage a development nip from the photoconductor to a developing position where the developing roller is in contact with the photoconductor to form the development nip, and whether the development nip disengaging error occurred is determined based on the detected test pattern.

Abstract: A variable capacitor is provided. The variable capacitor includes a plurality of capacitor segments. The plurality of capacitor segments are connected in parallel within the variable capacitor. When a plurality of candidate capacitances allowable to the variable capacitor according to a connection state of the plurality of capacitor segments connected in parallel are sorted in a magnitude sequence, the plurality of candidate capacitances form a geometric series. The variable capacitor is used for a Voltage Controlled Oscillator (VCO), and the VCO is used for a Phase Locked Loop (PLL).

Abstract: A clock generation apparatus includes a pulse generator configured to generate a pulse signal and a selection signal using a reference clock signal, a delay line circuit, a switch and a controller. The delay line circuit selects, as an input signal to a delay path, the pulse signal or a fed back portion of a delay clock signal at an output of the delay path, where the selection is based on the selection signal; and thereby generates the delay clock signal. The switch switches a first voltage or a second voltage to the delay line circuit for its operation, where the first voltage further provides power to the pulse generator. The second voltage is generated based on a phase difference between the reference clock signal and the delay clock signal. The controller generates a switch control signal based on a frequency of the delay clock signal.

Abstract: A film for light emitting devices, the film formed from a process including a quantum dot solution disposed between a first layer and a second layer, where at least one of the first layer and second layer is a protective layer, and where the protective layer is formed by mixing a barrier polymer with a scavenger.

Abstract: A foldable cover assembly includes a glass layer having a first surface, a second surface opposite the first surface, a first thickness at a first location and a second thickness at a second location, wherein the second thickness is less than the first thickness. The second thickness is further effective to provide bendability to the glass layer. The foldable cover assembly further includes an optically clear polymer film disposed on the first surface of the glass layer. The polymer film includes a thermoplastic polymer, a thermoset polymer, or a combination comprising at least one of the foregoing, wherein a 100 micrometer-thick sample of the optically clear polymer film transmits greater than 85% of visible light as determined according to ASTM D1003-00. A method for the manufacture of the foldable cover assembly is also described. The foldable cover assembly can be useful for use with an electronic device.