83 results about "Driving circuit" patented technology

The invention enhances a production yield of a display device (an electro-optical device). The invention provides a method of manufacturing an electro-optical device including a display region in which a plurality of basic pixels are arranged, each basic pixel including a plurality of color pixels. The method includes: forming on a first substrate lines to drive a plurality of electro-optical elements respectively constituting the color pixels, correspondingly to the arrangement of the basic pixels; forming on a second substrate, as a chip to be transferred to each basic pixel, a drive circuit to drive the plurality of electro-optical elements which constitutes the plurality of color pixels of the basic pixels to obtain a plurality of basic-pixel driving chips; and transferring step of transferring the respective basic-pixel driving chips from the second substrate onto the first substrate, and connecting the drive circuits to regions of the lines corresponding to the basic pixels.

A touch-sensitive display panel including a first substrate, a second substrate, an active pixel matrix, many driving circuits, many sensing electrodes and many color filter layers is provided. The active pixel matrix includes many pixels. The second substrate has a first surface and a second surface, wherein the first surface faces the active pixel matrix. The driving circuits are corresponding to the edges of the pixels for forming many openings. Each driving circuit includes a first main line and a second main line. The first main line has a first end connected to the active pixel matrix and a second end connected to the first substrate. The second main line is connected to the second end of the first main line through the first substrate. The color filter layers are filled in the openings. The sensing electrodes and the driving circuits are used for detecting at least one touch point.

A gate line driving circuit includes a shift register section that selects gate lines for gradation display and for black insertion, and an output circuit that outputs a driving signal to the gate line which is selected by the shift register section. In particular, the output circuit is configured to obtain an overlap between an output period of a driving signal to each selected gate line and an output period of a driving signal to a gate line that is driven in precedence to the selected gate line, and independently control a first preliminary driving period corresponding to the overlap for gradation display and a second preliminary driving period corresponding to the overlap for black insertion.

This invention provides a kind of display device with a touch input function; the display device includes the dock, display panel, sensor plate and the light source. Display panel is installed on the dock.The display panel has a driving circuit layer including plural light sensor components. Sensor plate with interface and underside is installed at the side of the display panel, thereinto the underside looking towards the display surface of display panel. Light source is installed along the edge of the sensor plate, and launch into the sensor plate. When the contact surface in the state of no touching interface, the light in contact with a total reflection on interface and underside; when a specific location of the contact surface in the state of contact interface, the specific location of contact surface will scatter parts of light penetrating underside to arrive components. This invention can be carried out more input and fingerprint recognition, without the impact from the environment of electric field, improves the accuracy of sensors.

A display device comprises pixels PX each of which has one of different luminosity characteristics, signal line blocks each including a preset number of signal lines X connected to the pixels PX having a common one of the luminosity characteristics, and a signal line driving circuit which drives the signal lines X according to a video signal. Particularly, the signal line driving circuit includes a selection circuit which sequentially selects the signal line blocks in an effective picture period of the video signal and an external driving unit which drives the preset number of signal lines included in the signal line block selected by the selection circuit.

The invention is suitable for the technical field of electronics and provides a driving circuit of optoelectronic equipment and a driving method thereof. The driving circuit comprises a first series-to-parallel conversion chip and a second series-to-parallel conversion chip, wherein the first series-to-parallel conversion chip is connected with a singlechip through a three-wire bus and is used for converting serial data output by the singlechip into parallel data and outputting the parallel data to the section control end of the optoelectronic equipment; and the second series-to-parallel conversion chip is used for converting the serial data spilled by the first series-to-parallel conversion chip into the parallel data and outputting the parallel data after the conversion to the position gate end of the optoelectronic equipment to control the data of the display section of the optoelectronic equipment. According to the invention, multiple series-to-parallel conversion chips are connected between the singlechip and a digital tube, and the serial-in-parallel-out conversion of data is completed through the series-to-parallel conversion chips, thereby achieving the control of the driving optoelectronic equipment by only using the three-end bus, reducing the occupancy rate of the I/O (input/output) port of the singlechip so that more control tasks can be completed at the limited I/O port of the singlechip, simplifying a circuit and improving the reliability of the circuit.

A resonant gate drive circuit provides efficient switching of, for example, MOSFETs. However, the operation of resonant gate drive circuits often does not allow applications where high switching frequencies are required. According to the invention, a precharging of the inductance of the resonant gate drive circuit is performed. This allows highly efficient and fast MOSFET operation.

A liquid crystal display device is provided which is capable of reducing EMI (ElectraMagnetic Interference) noises while simultaneously responding to requirements for the high-speed transmission of image data, miniaturization and thinning of a signal processing board. A timing controller outputs, in accordance with an input data signal and input clock signal, a data line driving circuit controlling signal, internal data signal, internal clock signal to a data line driving circuit and outputs a scanning line driving circuit controlling signal to a scanning line driving circuit. The timing controller has a clock signal frequency setting mode in which a frequency of each of clock signals is set to a different value and the clock signals are supplied to the data line driving circuits and other data line driving circuits in one region and another region.

The invention relates to the technology of a power source and an integrated circuit, in particular to a DC-DC converter with the output voltages capable of being adjusted quickly. The DC-DC converter comprises a driving circuit, a PMOS tube MP, an NMOS tube MN, a PWM comparator, an EA amplifier, an inductor L, a capacitor C, a resistor R and a power source Vin. The DC-DC converter is characterized in that a calculating amplifier is further included, the driving circuit, the PMOS tube MP, the NMOS tube MN, the PWM comparator, the EA amplifier, the inductor L, the capacitor C, the resistor R and the power source Vin form a traditional DC-DC converter, and the positive input end and the output end of the calculating amplifier are connected to be used as one end, connected to the capacitor C, of a bumper. The DC-DC converter has the advantages of being simple in structure, easy to achieve, low in power consumption, and capable of achieving quick adjusting of the output voltages of the DC-DC converter only by small domain area. The DC-DC converter is particularly suitable for DC-DC converters.

An embodiment of the present invention includes an LED driving device that causes a plurality of LEDs to emit light, wherein the device includes: an LED driving circuit configured to drive the LEDs so that at least one of the plurality of LEDs emits light as a first. LED and an LED around the first LED is prevented from emitting light as a second LED; a photodetection unit configured to detect light emission of the first LED through the second LED and detect a light emission quantity of the first LED; and a controller configured to adjust a light emission quantity of the first LED based on the light emission quantity of the light emission of the first LED detected by the photodetection unit.

The invention discloses a remote control electric water heater fault diagnosis system which comprises an electric water heater control device. The electric water heater control device comprises a controller which is connected with a WIFI module, an electrical leakage monitoring circuit, a heating fault detecting circuit used for detecting faults of an electric heating pipe and a driving circuit, a water temperature sensor fault detecting circuit and an environment temperature sensor. The WIFI module is in wireless connection with a router, the router is in wireless connection with user terminal equipment and a network server, the electrical leakage monitoring circuit is connected with the electric heating pipe, and the water temperature sensor fault detecting circuit is connected with the water temperature sensor. According to the remote control electric water heater fault diagnosis system, fault diagnosis is conducted on an electric water heater device, fault problems are transmitted to an after-sale service system of the network server to be recorded and analyzed through the WIFI module, and relevant fault information is sent to the user terminal equipment.

The invention provides an OLED display panel and a manufacturing method thereof, and an OLED display device. The OLED display panel comprises a back plate, a substrate, a driving circuit layer, a light-emitting function layer and a packaging layer, wherein the substrate is arranged on the back plate; the driving circuit layer is arranged on the substrate; and the light-emitting function layer is arranged on the driving circuit layer, the packaging layer is arranged on the light-emitting function layer, and a sum of thicknesses of the back plate and the substrate in an electronic element setting area corresponding to an electronic element setting position is smaller than the sum of the thicknesses of the back plate and the substrate in other areas. In the invention, the thickness of at least one layer of the substrate and the back plate in the electronic element setting area is reduced so that light transmittance of the electronic element setting area is increased, an under-screen camera area is normally displayed, an under-screen camera is realized without digging a hole, a screen-to-body ratio is improved, and a technical problem that a display effect is influenced due to a fact that the under-screen camera area of the existing OLED display panel needs hole digging is solved.

An output circuit comprises first and second transistors, a driving circuit and a current mirror circuit. The driving circuit supplies a relatively small constant current to the base of the first transistor. When a current flows to the collector of the first transistor, a current with a magnitude set at a fixed ratio with respect to the current flows to the collector of the second transistor, and a current proportional to the current flowing to the collector of the second transistor flows to the base of the first transistor by way of the current mirror circuit. That is, a current, which is determined in accordance with a current flowing to the collector of the first transistor, flows to the base of the first transistor.

The invention discloses a display panel and a multiplexing drive circuit for driving the display panel. The multiplexing drive circuit comprises a plurality of drive units, wherein each drive unit receives eight channels of data signals with negative-positive-positive-negative-positive-negative-negative-positive polarity or negative-positive-negative-positive-positive-negative-positive-negative polarity so as to enable twenty-four data lines to sequentially receive the data signals with the positive-negative-negative-positive-negative-positive-positive-negative positive polarity or the negative-positive-negative-positive-positive-negative-positive-negative polarity; therefore, when the display panel displays pure color images, any two adjacent sub-pixels of the same color in any row of sub-pixels respectively receive the data signals with different polarities, and the problem of picture crosstalk caused by the same color along the row direction is further improved; furthermore, the multiplexing drive circuit is less in winding, so that the thickness of the display panel can be reduced.

Disclosed is a drive circuit for generating the drive current used to energize the windings of a motor. The drive circuit includes a data processing unit that produces two outputs used to control an H-bridge and generation of the drive current. One output, a commutation signal, controls the timing of generation of drive current. The drive current in turn is determined based on the other output, a speed signal. The speed signal waveform includes blanking portions to avoid occurrences of shoot through in the H-bridge.

The invention relates to a vehicle window controller based on temperature difference identification, comprising a motor for driving vehicle window glass to move, a relay for controlling the motor, an internal temperature sensor (1) arranged inside the carriage, an external temperature sensor (2) arranged outside the carriage, an A/D conversion module, a microcontroller and a relay-driving circuit, wherein, the internal temperature sensor (1) and the external temperature sensor (2) are connected with the microcontroller via the A/D conversion module, and the microcontroller controls the relay by means of the relay-driving circuit. The vehicle window controller of the invention controls the relay-driving circuit according to the temperature difference between the inside and the outside of a vehicle, thus automatically regulating the movement distance of the vehicle window glass and movement distance thereof per unit time, improving the comfort of a driver in the process of driving and enhancing driving safety.

The embodiment of the invention disclose an array substrate and an electronic paper display device. The array substrate includes a plurality of data lines arranged in the first direction and extendingin the second direction, and a plurality of scan lines arranged in the second direction and extending in the first direction, wherein the first direction intersects with the second direction; in thefirst direction, the data lines are continuously divided into multiple sets of data line groups, the data lines in the same data line group are electrically connected to each other, each set of the data line group is electrically connected to a driving circuit located in a non-display area through a fan-out line, the data line groups are arranged in the direction from the middle of a display areato the two sides, the number of the data lines in the latter set of the data line group is less than or equal to the number of the data lines in the previous set of the data line group, and the numberof the data lines in at least one data line group is smaller than the number of the data lines in the adjacent data line group. The array substrate improves the problem of data line resistance mismatch, and achieves a narrow frame design of an ultra-long electronic paper.

A cutter unit is incorporated in a printer to cut a paper in accordance with an instruction from a controller of the printer. The cutter unit includes a cutter blade, a position sensor for detecting that the cutter blade is or is not in a reference position, a motor for driving the cutter blade, a drive circuit for the motor, and a cutter control element for controlling the drive circuit on the basis of a result of the detection of the position sensor to operate the cutter blade in accordance with the instruction from the controller.

The invention discloses a leakage protection device which can prevent electric shock accidents caused by faults of electric equipment and also can prevent the electric shock accidents caused by the fact that an earth wire is electrified accidently. The leakage protection device is also provided with a weak current detection sensor, a voltage comparator circuit and a one-way output circuit; an iron core of the weak current detection sensor is wound by a primary winding and a secondary winding; a detection circuit which is formed by serially connecting the primary winding with a current-limiting capacitance resistance element is connected between the earth wire and a neutral wire; a standard voltage obtained from a stable-voltage power supply is input into an input end of the voltage comparator circuit; an output end of the secondary winding of the weak current detection sensor and the other output end thereof are respectively connected with the other input end of the voltage comparatorcircuit and a cathode of the output end of a rectifying circuit; and the output end of the voltage comparator circuit is connected with a driving circuit of an electromagnetic coil through the one-way output circuit.

The invention discloses a non-scan intelligent digit integrated SPR detector, composed of an optical system, a sensor chip, and a signal check circuit, wherein the optical system comprises a LED light source, a polarizing disc, a lens and a mirror, the sensor chip is a glass sheet plated with a metal film on which a ligand is grown relative to the object molecule, the sensor chip is coupled on the lens, the signal check circuit comprises a LED drive circuit, a CCD array and a relative drive circuit, a signal detect and collect circuit, an A/D convert circuit, a MCU control circuit, and a digit communication circuit. The invention holds the characters of SPR sensor technique, while the invention uses wide-angle incidence of LED light source to avoid accurate incident angle scanning device, to simplify the angle adjuster, avoid the test error caused by transmission element, and improve operation property. The inventive integrated SPR detector can directly output digit, with high intelligent degree, small volume, portable property and easy application.