Abstract: The fingerprint sensing circuit includes sensing units and a sensing circuit. The sensing units are arranged as columns and rows. Each of the sensing units includes a sensing electrode. The sensing circuit is electrically connected to the sensing electrodes in at least two first sensing units of the sensing units in a first period to obtain a first fingerprint grey level.

Abstract: The fingerprint sensing circuit includes sensing units and a sensing circuit. The sensing units are arranged as columns and rows. Each of the sensing units includes a sensing electrode. The sensing circuit is electrically connected to the sensing electrodes in at least two first sensing units of the sensing units in a first period to obtain a first fingerprint grey level.

Abstract: An electronic apparatus is provided. The electronic apparatus includes a first integrated circuit (IC) and a second IC. The direction pin of the first IC outputs a direction control signal to the direction pin of the second IC. The first IC takes a control right when the direction control signal is in a first logic state. The clock pin of the first IC outputs a first clock signal to the clock pin of the second IC when the first IC takes the control right. The second IC takes the control right when the direction control signal is in a second logic state. The clock pin of the second IC outputs a second clock signal to the clock pin of the first IC when the second IC takes the control right.

Abstract: The fingerprint sensing circuit including sensing electrodes, switches, a sensing line and flip flops. First terminals of the switches are respectively coupled to the sensing electrodes. The sensing line is coupled to second terminals of the switches. Output terminals of the flip flops are respectively coupled to control terminals of the switches. An input terminal of part of the flip flops is coupled to the output terminal of a previous flip flop.

Abstract: An electrical device is provided and includes a touch electrode and a receiving circuit. The receiving circuit includes a first demodulator, a first analog to digital converter, a second demodulator, and a second analog to digital converter. The first demodulator is coupled to the touch electrode and demodulates a touch signal received from the touch electrode according to a first frequency to generate a first analog signal. The first analog to digital converter is coupled to the first demodulator and converts the first analog signal into a first digital signal. The second demodulator is coupled to the touch electrode and demodulates the touch signal according to a second frequency to generate a second analog signal. The second frequency is different from the first frequency. The second analog to digital converter is coupled to the second demodulator and converts the second analog signal into a second digital signal.

Abstract: A display device includes an active matrix substrate and a detection circuit. The active matrix substrate has pixels that are configured to display an image. The pixels include display and photo sensing pixels each including a display region and a photo sensing region. The display region is configured to emit light with a predetermined emitting frequency in a blank period of the display device. The photo sensing region is adjacent to the display region, and is configured to detect the light emitted by the display region and reflected from a biometric object and to convert the reflected light into photo detection signals. The detection circuit is coupled to the photo sensing circuit of each of the display and photo sensing pixels, and is configured to construct a biometric pattern corresponding to the biometric object based on the photo detection signals.

Abstract: An active stylus, a touch sensor, and a signal transmission and sensing method are provided. The active stylus comprises: an integrated circuit (IC) and a transmitting circuit. The IC comprises: a first modulator, a second modulator, and a mixer. The first modulator is utilized for modulating a first signal with a first frequency to generate a first frequency modulated signal. The second modulator is utilized for modulating a second signal with a second frequency to generate a second frequency modulated signal. The mixer is coupled to the first modulator and the second modulator, and utilized for mixing the first frequency modulated signal and the second frequency modulated signal to generate a mixed signal having the first frequency and the second frequency. The transmitting circuit is coupled to the IC, and utilized for transmitting the mixed signal to the touch sensor.

Abstract: A touch apparatus and a sensing method and a touch sensing circuit thereof are provided. The touch apparatus includes a touch panel and the touch sensing circuit. In a first period, the touch sensing circuit applies the same driving signal to a plurality of sensing electrodes of the touch panel at the same time, and performs self-capacitance touch detection on the sensing electrodes to obtain a self-capacitance detection result. In a second period, the touch sensing circuit performs mutual-capacitance touch detection on at least one of the sensing electrodes to obtain a mutual-capacitance detection result. The touch sensing circuit determines whether a touch event of the touch panel is triggered by water based on the mutual-capacitance detection result and the self-capacitance detection result.

Abstract: A display device is provided. The display device includes a display panel having a biometric detecting area configured to detect a biometric pattern of a biometric object in a blanking period of the display device. The biometric detecting area has plural blocks and each of the blocks comprises plural first pixels and plural photodetectors adjacent to the first pixels, respectively. The light sequentially penetrates the first pixels within each of the blocks in the blanking period of the display device.

Abstract: A touch screen includes a display, a touch sensor disposed above or within the display, and a conductive layer disposed under the display for detecting pressure.

Abstract: The common voltage provider includes a channel selector and a voltage generator. The channel selector is coupled to an in-cell touch and display panel, for selecting to connect a plurality of first common voltage blocks to a first channel, and connect a plurality of second common voltage blocks to at least one second channel according to a plurality gate line signals wherein the first common voltage blocks upon a scanned gate line and the second common voltage blocks upon a plurality of non-scanned gate lines, and the gate line signals are respectively received by the scanned gate line and the non-scanned gate lines. The voltage generator is coupled to the first channel and the at least one second channel, and providing a first common voltage to the first channel.

Abstract: A touch device and a waking up method thereof are provided. The touch device includes a sensing area and a sensing circuit. The sensing area includes sensing areas, and each sub sensing area includes sensing points. In the waking up method, at first, a sensing operation is performed at a first time point and a second time to obtain two total capacitance values of the sensing area at the first time point and the second time point. The scan operation scans a portion of the sensing points of each the sub sensing area, and a number of the portion of the sensing points is smaller than a number of the sensing points in one sub sensing area. Then, a difference between the two total capacitance values is calculated, and the touch device is waken up when the capacitance difference value is greater than a threshold capacitance value.

Abstract: A dermatoglyph identification apparatus and an identifying method thereof are provided. The dermatoglyph identification apparatus includes a switch circuit, a signal source and a plurality of sensors. The signal source is selectively connected to the sensors through an impedance element. The switch circuit switches at least one sensor to be connected to the impedance element, and switches rest of the sensors to be connected to a ground terminal of the signal source. The dermatoglyph identification apparatus identifies dermatoglyph according to a sensing signal generated by the sensor connected to the impedance element in response to a reference signal of the signal source.

Abstract: A driver integrated circuit (IC) is arranged to selectively operate in a display mode and a touch-sensing mode when the driver IC is coupled to a touch display panel. When the driver IC operates in the display mode, the driver IC controls a plurality of common voltage lines of the touch display panel to have a common voltage. When the driver IC operates in the touch-sensing mode, the driver IC controls a first source line of the touch display panel which corresponds to a specific common voltage line, or controls a neighboring common voltage line of the specific common voltage line, to have a first signal pattern the same as the first signal pattern on the specific voltage line or to be floating, wherein the specific common voltage line is arranged to detect touch currently.

Abstract: The fingerprint sensing circuit includes sensing units and a sensing circuit. The sensing units are arranged as columns and rows. Each of the sensing units includes a sensing electrode. The sensing circuit is electrically connected to the sensing electrodes in at least two first sensing units of the sensing units in a first period to obtain a first fingerprint grey level.

Abstract: A sensing method of a touch panel is provided. The touch panel includes N control lines, M groups of sense lines and a touch sensor array having a plurality of sensors arranged in M rows and N columns. The N control lines are coupled to N columns of sensors. The M groups of sense lines are coupled to M rows of sensors. The sensing method includes the following steps: alternately driving the N control lines to alternately enable the N columns of sensors to detect a touch event, wherein P control lines are driven at a time such that P sensors within each of the M rows of sensors are enabled simultaneously, and P is a positive integer greater than one; and receiving P sensing results generated by the enabled P sensors through a corresponding group of sense lines, and generating a sensing output according to the P sensing results.

Abstract: A driver integrated circuit (IC), arranged to selectively operate in a display mode, a self-capacitor mode and a mutual-capacitor mode when the driver IC is coupled to a touch display panel, wherein when the driver IC operates in the display mode, the driver IC outputs display data to a plurality of source lines of the touch display panel; when the driver IC operates in the self-capacitor mode, the driver controls the source lines to have a predetermined voltage; and when the driver IC operates in the mutual-capacitor mode, the driver IC sequentially sends an impulse signal to the source lines.

Abstract: A touch display apparatus is provided, which includes a panel and a circuit. The panel is configured for display, active stylus sensing and touch sensing, which includes a sensing layer having sensing blocks arranged in an array of rows and columns. The circuit is coupled to the panel, and is configured to drive the panel to perform display and active stylus sensing with respect to a first reference voltage at a first stage of a frame period and to drive the panel to perform touch sensing with respect to a second reference voltage at a second stage of the frame period.

Abstract: The fingerprint sensing circuit including sensing electrodes, switches, a sensing line and flip flops. First terminals of the switches are respectively coupled to the sensing electrodes. The sensing line is coupled to second terminals of the switches. Output terminals of the flip flops are respectively coupled to control terminals of the switches. An input terminal of part of the flip flops is coupled to the output terminal of a previous flip flop.

Abstract: A touch device and a waking up method thereof are provided. The touch device includes a sensing area and a sensing circuit. The sensing area includes sensing areas, and each sub sensing area includes sensing points. In the waking up method, at first, a sensing operation is performed at a first time point and a second time to obtain two total capacitance values of the sensing area at the first time point and the second time point. The scan operation scans a portion of the sensing points of each the sub sensing area, and a number of the portion of the sensing points is smaller than a number of the sensing points in one sub sensing area. Then, a difference between the two total capacitance values is calculated, and the touch device is waken up when the capacitance difference value is greater than a threshold capacitance value.