Abstract: An under-screen fingerprint identification device includes an image sensing element, a display element, an optical lens, and a band pass filter element. The band pass filter element is disposed between the image sensing element and the display element. An object to be identified reflects an initial beam to generate a sensing beam, and the sensing beam is transmitted to the image sensing element through the display element, the optical lens, and the band pass filter element. The band pass filter element allows a beam with a specific wavelength range to pass. The specific wavelength range and a wavelength range of the initial beam are partially overlapped.

Abstract: An electronic device and a fingerprint sensing method are provided. The electronic device includes a display panel, a fingerprint sensor, and an integrated driver chip. The display panel includes a plurality of pixel units arranged in an array. The integrated driver chip integrates a display driver circuit and a fingerprint sensing circuit. When the pixel units of the display panel are in an undriven state and a finger object is in contact with a sensing area of the display panel to perform a fingerprint unlock operation, the display driver circuit drives at least a portion of the pixel units corresponding to the sensing area, so that at least a portion of the pixel units provide illumination light to the sensing area. The fingerprint sensing circuit drives the fingerprint sensor to capture a fingerprint feature image of the finger object.

Abstract: An under-screen fingerprint identification system includes an image sensing element, a display element, a translucent cover, and a Bragg polarization grating. The display element is disposed on the image sensing element. The translucent cover is disposed on the display element, and the display element is located between the translucent cover and the image sensing element. The translucent cover has a first surface and a second surface opposite to each other, and the first surface is farther away from the display element than the second surface. The Bragg polarization grating is disposed on the second surface of the translucent cover.

Abstract: An exposure method, an electronic device and a master-slave system are provided. The electronic device includes an image capturing circuit and a processor coupled to the image capturing circuit. The processor obtains an exposure command and a first quantity, controls the image capturing circuit to perform an exposure operation to capture an image according to the exposure command, and determines whether a quantity of the image reaches the first quantity. When the quantity of the image does not reach the first quantity, the processor performs the operation of controlling the image capturing circuit to perform the exposure operation to capture the image again. When the quantity of the image reaches the first quantity, the processor stops controlling the image capturing circuit to perform the exposure operation.

Abstract: A master-slave system, a command execution method, and a data access method are provided. The master-slave system includes a master device and a slave device. The master device provides a first command and a clock signal to the slave device. The slave device executes a first operation corresponding to the first command according to the first command and the clock signal. When the first operation corresponding to the first command is completed, the slave device generates a response signal according to the clock signal to notify the master device an execution result of the first operation corresponding to the first command.

Abstract: An image data transmission system and an image data transmission method are provided. The image data transmission system includes an image sensing device, a master device, and a serial transmission bus. The serial transmission bus electrically connects the image sensing device and the master device. The master device transmits a read command to the image sensing device through the serial transmission bus, and the image sensing device transmits a first data sequence to the master device through the serial transmission bus in response to the read command.

Abstract: A visible light communication sensor and visible light communication method are provided. The visible light communication sensor includes a comparator, a sensing unit, and a first ramp signal generator. The comparator includes a first input terminal, a second input terminal, and an output terminal. The sensing unit is coupled to the first input terminal of the comparator. The sensing unit is configured to sense a visible light communication signal to output a sensing signal to the first input terminal of the comparator. The first ramp signal generator is coupled to the second input terminal of the comparator and is configured to output the first ramp signal to the second input terminal of the comparator. The comparator outputs a comparison result signal via the output terminal according to the voltage values of the first input terminal and the second input terminal.

Abstract: A visible light communication sensor is provided. The visible light communication sensor includes a sensing module, an image data readout circuit, and a visible light communication data readout circuit. The sensing module includes a plurality of pixel units arranged in an array. When the sensing module performs an image sensing operation, a first portion of the pixel units performs an image sensing operation, and the image data readout circuit is idle. When the sensing module performs a visible light communication operation, a second portion of the plurality of pixel units receives a visible light communication signal, so that the visible light communication data readout circuit outputs the visible light communication data, and the image data readout circuit performs an analog-to-digital conversion on a plurality of image sensing signals outputted by the first portion of the plurality of pixel units performed in the image sensing operation to output image sensing data.

Abstract: An image sensor and a pixel array circuit thereof are provided. The image sensor includes the pixel array circuit and a readout circuit. The pixel array circuit includes pixel units. Each pixel unit includes a photo sensor, N storages, N transmission circuits, and M floating diffusion nodes. The N storages are coupled to the photo sensor and configured to store charges accumulated by the photo sensor at different exposures. Each transmission circuit is coupled between a corresponding storage and a corresponding floating diffusion node, and controlled by one of N transmission control signals to transmit the charges of the corresponding storage to the corresponding floating diffusion node during a certain time period. The readout circuit is coupled to the M floating diffusion nodes and configured to obtain N digital pixel values respectively corresponding to N image frames according to voltages of the M floating diffusion nodes of each pixel unit.

Abstract: An optical apparatus including a substrate, a light-emitting module, a transparent optical element and a connecting unit is provided. The light-emitting module is disposed over the substrate and is electrically connected with the substrate. The transparent optical element is disposed over the light-emitting module. The transparent optical element includes a transparent substrate and an optical element. The optical element is disposed on the transparent substrate. The optical element and the transparent substrate are integrally formed and made of a same material. The connecting unit is disposed beside the light-emitting module and is used for connecting the transparent optical element to the substrate.

Abstract: An optical identification module including a sensor and a collimator is provided. The sensor has a plurality of sensing regions. The collimator is disposed on the sensing regions, and the collimator includes a transparent substrate and a first light shielding layer. The first light shielding layer is disposed on a first surface of the transparent substrate. The first light shielding layer includes a plurality of first openings. A ratio of a thickness of the first light shielding layer to a width of each of the first openings is greater than 1.

Abstract: A light-emitting apparatus including a light source, a light-diverging element, a conductive structure, and a drive control module is provided. The light source is used to emit a light beam. The light-diverging element is disposed on a transmission path of the light beam, wherein after the light beam passes through the light-diverging element, a plurality of light beams separated from each other are produced. The conductive structure is disposed on a first surface of the light-diverging element. The drive control module is used to drive the light source and is electrically connected to the light source and the conductive structure.

Abstract: An image sensing system and a multi-function image sensor thereof are provided. The multi-function image sensor includes a pixel array circuit and a readout circuit. The pixel array circuit includes a plurality of pixel units. Each of the pixel units is controlled by a first control signal group in a first mode to perform a time-of-flight sensing operation and sequentially generates a plurality of first output voltages. Each of the pixel units is controlled by a second control signal group in a second mode to perform a structured light sensing operation and sequentially generates a plurality of second output voltages. The readout circuit respectively obtains a plurality of first digital information corresponding to the time-of-flight sensing operation according to the first output voltages in the first mode. The readout circuit respectively obtains a plurality of second digital information corresponding to the structured light sensing operation according to the second output voltages in the second mode.