Abstract: An image sensing circuit includes a plurality of readout circuits and a pre-charge control circuit. Each of the readout circuits is coupled to a sensing line among a plurality of sensing lines and configured to receive a sensing voltage among a plurality of sensing voltages through the corresponding sensing line, wherein at least one of the readout circuits is further configured to receive at least one first pre-scan voltage through the corresponding sensing line prior to reception of the sensing voltage. The pre-charge control circuit, coupled to the readout circuits, is configured to perform a plurality of steps. The steps include receiving the at least one first pre-scan voltage from the at least one readout circuit; calculating a first pre-charge voltage according to the at least one first pre-scan voltage; and pre-charging the sensing lines to the first pre-charge voltage before the readout circuits receive the sensing voltages.

Abstract: A fingerprint sensing apparatus having a three-dimensional (3-D) sensing mechanism that includes optical fingerprint sensing circuits and a processing circuit is provided. The optical fingerprint sensing circuits are configured to perform sensing within sensing areas to obtain sensed images, wherein each of the sensing areas corresponds to one of the optical fingerprint sensing circuits and the sensing areas includes at least one overlapped area. The processing circuit is electrically coupled to the optical fingerprint sensing circuits to receive the sensed images and generate a three-dimensional sensed image having depth information of the overlapped area according to a disparity between the sensed images.

Abstract: A fingerprint sensing apparatus having a large-area sensing mechanism is provided that includes at least three optical fingerprint sensing circuits and a processing circuit. The at least three optical fingerprint sensing circuits are configured to perform sensing within a plurality of sensing areas to obtain a plurality of sensed images, wherein each of the sensing areas corresponds to one of the optical fingerprint sensing circuits. The processing circuit is electrically coupled to the optical fingerprint sensing circuits to receive the sensed images and is configured to splice the sensed images together to form an integrated sensed image.

Abstract: A method of switching a control voltage of a photo sensor cell for a photo sensor includes when the photo sensor cell is switched from a turned-off state to an turned-on state, sequentially switching the control voltage to at least one first voltage provided by at least one first voltage supply, and switching the control voltage to a first target voltage provided by a first charging pump circuit; and when the photo sensor cell is switched from the turned-on state to the turned-off state, sequentially switching the control voltage to at least one second voltage provided by at least one second voltage supply or a ground voltage, and switching the control voltage to a second target voltage provided by a second charging pump circuit.

Abstract: A fingerprint and proximity sensing apparatus for fingerprint recognizing and proximity sensing is provided. The fingerprint and proximity sensing apparatus includes a display panel, a fingerprint sensor, and at least one proximity sensing light emitting diode. The fingerprint sensor has an optical sensing array. The optical sensing array is configured to receive a first light emitted from the display panel and a second light emitted from the at least one proximity sensing light emitting diode at different time periods. The first light and the second light have different ranges of wave length. A sensing process is also provided.

Abstract: A fingerprint sensing method and a fingerprint sensing device are provided. The fingerprint sensing method includes the following steps. A first supply voltage is provided to power a fingerprint sensing circuit of the fingerprint sensing circuit. When the fingerprint sensing circuit is powered by the first supply voltage, it is detected whether a finger touch occurs. In response to determining that the finger touch has occurred, a second supply voltage is provided to power the fingerprint sensing device. A fingerprint image sensing is performed to obtain a fingerprint image when the fingerprint sensing circuit is powered by the second supply voltage.

Abstract: A fingerprint sensing method and a fingerprint sensing device are provided. The fingerprint sensing method includes the following steps. A first supply voltage is provided to power a fingerprint sensing circuit of the fingerprint sensing circuit. When the fingerprint sensing circuit is powered by the first supply voltage, it is detected whether a finger touch occurs. In response to determining that the finger touch has occurred, a second supply voltage is provided to power the fingerprint sensing device. A fingerprint image sensing is performed to obtain a fingerprint image when the fingerprint sensing circuit is powered by the second supply voltage.

Abstract: An artificial retinal prosthesis system comprises an extraocular optical device and an intraocular retina chip. The extraocular optical device receives an external image, converts it into an optical pulse signal, and generates light energy. The intraocular retina chip receives the optical pulse signal from the extraocular optical device and produces an electric simulation signal. The intraocular retina chip includes a solar cell module receiving and converting the light energy into electric energy as a power source of the intraocular retina chip. The artificial retinal prosthesis system uses an optical modulation method to convert an image signal into an optical pulse signal, transmits the optical pulse signal into the eyeball, and decodes the optical pulse signal intraocularly. Thereby, the signal light intensity is improved without affect the contrast ratio.

Abstract: An artificial retinal prosthesis system comprises an extraocular optical device and an intraocular retina chip. The extraocular optical device receives an external image, converts it into an optical pulse signal, and generates light energy. The intraocular retina chip receives the optical pulse signal from the extraocular optical device and produces an electric simulation signal. The intraocular retina chip includes a solar cell module receiving and converting the light energy into electric energy as a power source of the intraocular retina chip. The artificial retinal prosthesis system uses an optical modulation method to convert an image signal into an optical pulse signal, transmits the optical pulse signal into the eyeball, and decodes the optical pulse signal intraocularly. Thereby, the signal light intensity is improved without affect the contrast ratio.