Abstract: The present disclosure provides an array substrate and a preparation method thereof, a display panel and a driving method thereof, which belongs to the field of display technology. The array substrate includes a base substrate, a driving circuit layer, a reflective electrode layer, a light-emitting layer, an electrochromic layer, and a common electrode layer. The driving circuit layer is provided with a first and second driving circuit. The reflective electrode layer is provided on a side of the driving circuit layer away from the base substrate and provided with a first and second reflective electrode insulated from each other. The light-emitting layer includes a light-emitting unit arranged on the surface of the second reflective electrode away from the base substrate. The electrochromic layer is arranged on the surface of the first reflective electrode away from the base substrate. The common electrode layer covers the electrochromic layer and the light-emitting unit.

Abstract: The present disclosure is directed to an impedance spectroscopy system for bio-impedance measurement. The impedance spectroscopy system includes a signal generator configured to generate a signal with a broadband frequency spectrum and to generate an analog injection current from the signal with the broadband frequency spectrum. The analog injection current has a high pass frequency characteristic. The impedance spectroscopy system also includes an amplifier configured to measure a voltage signal in response to the analog injection current and to simultaneously measure a biopotential signal. Further, the impedance spectroscopy system includes a processor configured to analyze the voltage signal to derive a bio-impedance spectrum as well to derive further information from the biopotential signal.

Abstract: The present application provides a touch module and a touch screen. The touch module includes a first metal grid layer and a second metal grid layer. First touch electrodes are disposed in the first metal grid layer and arranged along a first direction, and each of the first touch electrodes extends along a second direction which intersects the first direction. Second touch electrodes are disposed in the second metal grid layer and arranged along the second direction, and each of the second touch electrodes extends along the first direction. The touch module further includes a first dummy electrode and a second dummy electrode, where the first dummy electrode is coupled to a part of the second touch electrode in parallel and the second dummy electrode is coupled to a part of the first touch electrode in parallel.

Abstract: A touch screen, a manufacturing method thereof, and a display device. The touch screen includes: a plurality of mutually independent touch detection regions. Each touch detection region includes a plurality of strip transparent electrodes arranged along a first direction and extending along a second direction, and a plurality of mesh electrodes arranged along the second direction and extending along the first direction. The strip transparent electrodes and the mesh electrodes are insulated from each other, and the second direction is intersected with the first direction. Strip ground electrodes extending along the second direction exist between every two adjacent touch detection regions arranged along the first direction, and the strip ground electrodes and the strip transparent electrodes are disposed on the same layer.

Abstract: A touch screen and a manufacturing method thereof, and a touch display device are provided. The touch screen includes a plurality of touch electrodes and a plurality of first touch lines, the plurality of touch electrodes extending in a same direction, each of the plurality of touch electrodes including a mesh structure formed by a plurality of metal lines, and the touch electrode including a first end and extending from the first end, each of the plurality of first touch lines being located between two adjacent touch electrodes and electrically connected with one of the two adjacent touch electrodes, and the first touch line being electrically connected with the first end of the touch electrode.

Abstract: A touch panel, a display device and a manufacturing method of the touch panel are provided, including: a display area and a peripheral area including a bonding area; a first electrode layer and a second electrode layer configured to sense touch and an insulating layer provided between the first electrode layer and the second electrode layer; a first ground wire layer provided in the bonding area on the substrate, the insulating layer including an opening provided on the first ground wire layer, the opening exposing a part of the first ground wire layer; and a second ground wire layer provided on the first insulating layer and the exposed part of the first ground wire layer. The exposed part of the first ground wire layer and the second ground wire layer contact each other in the opening of the insulating layer in the bonding area.

Abstract: The present application discloses a touch control display panel including a base substrate; an auxiliary electrode layer on the base substrate; an insulating layer on a side of the auxiliary electrode layer distal to the base substrate; and a first touch electrode layer and a second touch electrode layer on a side of the insulating layer distal to the auxiliary electrode layer. The first touch electrode layer and the auxiliary electrode layer are electrically connected in parallel; and the second touch electrode layer is insulated from the first touch electrode layer and the auxiliary electrode layer.

Abstract: A light-to-digital converter (2) comprises a light-to-current converter (10); a current integrator (4) with an integrator output (30) resettable to a baseline level; and a counter (18) with a digital output (26), wherein the light-to-current converter (10) is switchably connectable as a positive integration input to the current integrator (4), for, during a light-collecting phase (404-406), integrating a current from the light-to-current converter (10), the integrator output (30) starting from the baseline value and ending at a value to be digitized; a reference current source (14) is switchably connectable as a negative integration input to the current integrator (4), for, during a counting phase (406-408) subsequent to the light-collecting phase (404-406), integrating a reference current from the reference current source (14), the integrator output (30) starting from the value to be digitized and ending at the baseline value, the time spent integrating the reference current corresponding to the value to be

Abstract: A touch device is provided, which includes an elastic material layer, a photosensitive layer and a touch layer disposed in sequence; wherein a key region is disposed in the touch layer; at least one deformable pad is disposed in the elastic material layer and each of the at least one deformable pad has a plurality of deformable blocks; some or all of the deformable blocks of the deformable pad are deformed so as to vary lights incident on the photosensitive layer in response to a corresponding position of the touch layer being subjected to a pressing operation; an electrical signal at a position of the photosensitive layer corresponding to the pressing operation changes in response to the photosensitive layer sensing a change in lights.

Abstract: A touch screen and a manufacturing method thereof, and a touch display device are provided. The touch screen includes a plurality of touch electrodes and a plurality of first touch lines, the plurality of touch electrodes extending in a same direction, each of the plurality of touch electrodes including a mesh structure formed by a plurality of metal lines, and the touch electrode including a first end and extending from the first end, each of the plurality of first touch lines being located between two adjacent touch electrodes and electrically connected with one of the two adjacent touch electrodes, and the first touch line being electrically connected with the first end of the touch electrode.

Abstract: The present application discloses a touch control display panel including, a base substrate; an auxiliary electrode layer on the base substrate; an insulating layer on a side of the auxiliary electrode layer distal to the base substrate; and a. first touch electrode layer and a second touch electrode layer on a side of the insulating layer distal to the auxiliary electrode layer. The first touch electrode layer and the auxiliary electrode layer are electrically connected in parallel; and the second touch electrode layer is insulated from the first touch electrode layer and the auxiliary electrode layer.

Abstract: According to an aspect of the present inventive concept there is provided a reconfigurable sensor circuit comprising: an input stage including a first input terminal and a second input terminal, and an amplification stage including: a first amplifier having a non-inverting input, an inverting input and an output connected to the inverting input of the first amplifier via a first resistor, a second amplifier having a non-inverting input, an inverting input and an output connected to the inverting input of the second amplifier via a second resistor, and first switching circuitry adapted to be arranged in a first state, wherein the amplification stage is in a differential amplifier configuration, and in a second state, wherein the amplification stage is in a transimpedance amplifier configuration, wherein, in the differential amplifier configuration, the first amplifier and the second amplifier are together configured as a differential amplifier connected to the first and the second input terminals, and wh

Abstract: The present disclosure provides a touch substrate and a touch display device. The touch substrate includes: a touch structure, at least a part of which is located in the main touch region; and a connecting member and a wiring, at least partially located in the wiring region, wherein the connecting member is configured to electrically connect the touch structure and the wiring; the connecting member has a hollow portion. Such that, touch sensitivity can be improved.

Abstract: A device for read-out of a photoplethysmography (PPG) signal comprises: a photodiode, which is configured to detect a PPG signal, the photodiode comprising a first and a second terminal; and a read-out circuitry for reading out the PPG signal, wherein an input stage is connected to receive a first and a second input signal from the terminals and a DC bias voltage, and wherein the input stage is configured for current sensing to provide a fully differential amplification of the input signals to a first and a second current signal, and wherein an output stage is configured to receive the current signals, wherein the current signals comprise an AC and a DC component of the PPG signal, and wherein the output stage is configured to generate a differential output voltage through a gain component.

Abstract: A touch display device and a method for forming the same are provided. The touch display device includes a touch panel and a display panel arranged opposite to the touch panel to form a cell, where a deformable layer is arranged between the touch panel and the display panel and configured to be deformed in response to a pressure applied to the touch panel; a plurality of first electrodes is arranged at a side of the touch panel adjacent to the display panel; a plurality of second electrodes is arranged at a side of the display panel adjacent to the touch panel; the first electrodes and the second electrodes are arranged in a one-to-one correspondence manner, and each second electrode and the corresponding first electrode form a pressure sensing capacitor; where the touch display device further includes a pressure sensing module configured to detect a capacitance change of the pressure sensing capacitor and determine a value of the pressure applied to the touch panel based on the capacitance change.

Abstract: The present disclosure provides a touch substrate and a touch display device. The touch substrate includes: a touch structure (10), at least a part of which is located in the main touch region (02); and a connecting member (50) and a wiring, at least partially located in the wiring region (01), wherein the connecting member (50) is configured to electrically connect the touch structure (10) and the wiring (01); the connecting member (50) has a hollow portion. Such that, touch sensitivity can be improved.

Abstract: The present disclosure provides a touch component, a method for manufacturing the touch component and a touch screen. The touch component includes a first metal mesh layer and a second metal mesh layer which are opposite to each other, the first metal mesh layer including a plurality of first touch channel areas, the first virtual wiring area including a plurality of first virtual wiring openings, the second metal mesh layer including a plurality of second touch channel areas and a plurality of second virtual wiring areas, the second virtual wiring area including a plurality of second virtual wiring openings. A projection of at least part of the first virtual wiring opening on the second metal mesh layer intersects with a grid line of the second metal mesh layer.

Abstract: A silicon wafer horizontal growth apparatus comprises a casing forming a cavity; a crucible within the cavity and having a melting zone, an overflow port, a first and a second overflow surface; a feeding assembly for adding raw material to the melting zone at an adjustable rate; a heating assembly comprising two movable heaters disposed on the upper and lower sides of the crucible at an interval; a thermal insulation component for maintaining a temperature in the cavity; a gas flow assembly comprising a jet located above the second overflow surface, a gas conductive graphite member mounted on the bottom of the crucible, a quartz exhaust tube connected with the gas conductive graphite member, and a quartz cooling tube outside the exhaust tube; and a heat insulating baffle located above the second overflow surface for isolating the heating assembly from the jet, dividing the cavity into hot and cold zones.