Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

379results about How to "Save wiring space" patented technology

Pixel driving circuit for active organic light-emitting diode (OLED) display and driving method thereof

InactiveCN101986378ACompensation for brightness non-uniformityIncrease contrastStatic indicating devicesCapacitanceDisplay device
The invention discloses a pixel driving circuit for an active organic light-emitting diode (OLED) display and a driving method thereof. The pixel driving circuit comprises a driving transistor, three switch transistors, a storage capacitor and an OLED, wherein the drain electrode of a first transistor is connected with a data line; the grid electrode of the first transistor is connected with a first scanning control line; the source electrode of the first transistor is connected with the end A of the storage capacitor; the drain electrode of a second transistor is connected with the source electrode of a third transistor; the grid electrode of the second transistor is connected with the end A of the storage capacitor; the source electrode of the second transistor is connected with the drain electrode of a fourth transistor and the end B of the storage capacitor and is grounded through the OLED; the drain electrode of the third transistor is connected with a power wire; the grid electrode of the third transistor is connected with a light-emitting control line; the grid electrode of the fourth transistor is connected with a second scanning control line; and the source electrode of the fourth transistor is grounded. The pixel driving circuit of the invention can effectively compensate the non-uniformity of threshold voltages of the transistors and the degradation of a starting voltage of the OLED so as to realize uniform display screen brightness of the OLED and high contrast ratio.
Owner:SOUTH CHINA UNIV OF TECH

LCD (liquid crystal display) data driven IC (integrated circuit) output compensation circuit and compensation method

The invention relates to an LCD (liquid crystal display) data driven IC (integrated circuit) output compensation circuit and a compensation method. The circuit comprises a data driven IC, a plurality of first switching unit and a delay control unit. A plurality of output channels of the data driven IC are respectively connected with pixel electrodes on corresponding lines in a glass substrate through data lines and output charging signals to charge the pixel electrodes on the corresponding lines; each output channel is provided with one first switching unit for controlling the output channel on which the first switching unit is positioned according to delay control signals generated by the delay control unit and outputting the charging signals according to preset delayed time; and the delay control unit generates the corresponding delay control signals according to impedance values of the corresponding data lines so as to control to start the corresponding first switching unit according to the preset delayed time and ensure each pixel electrode to have equal charging time. The LCD data driven IC output compensation circuit does not need to be wound with a wire; the routing space of the glass substrate is reduced, the LCD data driven IC output compensation circuit is beneficial to the design of a narrow border of a liquid crystal display, and the EMI (Electro Magnetic Interference) problem generated when all the output channels are simultaneously opened are improved.
Owner:TCL CHINA STAR OPTOELECTRONICS TECH CO LTD

Magnetic resonance three-component noise removing device and noise removing method

ActiveCN103823244AEliminate the influence of strong electromagnetic interferenceSolve the problem of limited applicationWater resource assessmentDetection using electron/nuclear magnetic resonanceCapacitanceNMR - Nuclear magnetic resonance
The invention relates to a magnetic resonance three-component noise removing device. The magnetic resonance three-component noise removing device is formed through a structure. The structure is characterized in that an upper computer is connected with a transmitting coil through a control system, a transmitting circuit and a resonance matching capacitor; the transmitting circuit is connected with a power supply; the control system is connected with a receiving coil and a reference coil respectively through an A/D (Analog to Digital) collection and amplification circuit and a conditioning circuit. The magnetic resonance three-component noise removing device is applicable to a detection area with complex and changeable environment noise and uneven space distribution of the noise; due to the adoption of relevance between x-component signals, y-component signals and z-component signals which are sensed by coils paved in the same detection place, the z-component noise is removed, then filtered and processed to obtain reliable magnetic resonance signals, so that the wiring space is greatly saved and the processing result is flexible and accurate; in particular, when sharp-peak noise with great amplitude exists, the noise removing effect is excellent. Through the magnetic resonance three-component noise removing device, the influence of strong electromagnetic interference near the cities, the villages and the water-deficient areas is eliminated, and the problem of limited application of a nuclear magnetic resonance underground water detection method is solved.
Owner:JILIN UNIV

LED display screen with same-color chips arrayed diagonally and method for reusing pixels

ActiveCN103325320AReduce wiring stressIncrease physical pixel densityStatic indicating devicesIdentification meansLED displayDiagonal
The invention relates to an LED display screen with same-color chips arrayed diagonally and a method for reusing pixels. The three-primary-color LED chips of the display screen are respectively transversely and longitudinally linearly arranged equidistantly, the same-primary-color LED chips are arranged to form diagonals, and the corresponding three-primary-color LED chips are equidistantly, sequentially, alternately and diagonally arranged in the direction perpendicular to each diagonal. The method for reusing the pixels includes corresponding to primary-color display data of an optional LED chip to primary-color display data of n adjacent pixels of an image source, adding the primary-color display data of the n adjacent pixels to obtain a sum, and dividing the sum by the number n to obtain display data of the LED chip; transmitting acquired display data of the various three-primary-color LED chips to the display screen via a scanning driving circuit so that the display data can be displayed on the display screen. The LED display screen and the method have the advantages that the circuit board wire arrangement pressure is effectively relieved, the production cost can be greatly lowered, the production efficiency is improved, and the LED display screen and the method are particularly applicable to ultrahigh-density LED display.
Owner:长春瑞隆达电子技术有限公司

Thin film transistor liquid crystal display device and manufacturing method thereof

The invention discloses a thin film transistor liquid crystal display device which comprises a plurality of pixel areas, wherein each pixel area comprises a thin film transistor, a transparent electrode, a pixel electrode and a shading electrode; each pixel electrode passes through each thin film transistor, is coupled with scanning lines and data wires, is overlapped with each transparent electrode, is insulated to each transparent electrode, and is overlapped with the scanning line at a former row or the scanning line at a latter row; each shading electrode is insulated to each pixel electrode; the edges of each shading electrode and each pixel electrode are overlapped at least partially; each shading electrode is insulated to the data wire, and is overlapped with the data wire; and each transparent electrode and each shading electrode are electrically connected with the scanning line at the former row or the scanning line at the latter row. According to the invention, the thin film transistor liquid-crystal display device leaves out a storage electrode wire occupying routing space of the conventional liquid-crystal display device, reserves the shading electrode, so that the aperture opening ratio of the pixels is increased.
Owner:SHANGHAI AVIC OPTOELECTRONICS

Wiring method of differential signal line and PCB

The invention discloses a wiring method of a differential signal line and a PCB. The wiring method includes: rectangular fiberglass fabrics are provided, and the fiberglass fabrics are formed by fiberglass mutually woven in a staggered manner and adhesives filled between the fiberglass; the wiring direction of the differential line is determined, and the bundle number of the fiberglass of the fiberglass fabrics in the direction is obtained; the wiring direction comprises the length direction or the width direction of the fiberglass fabrics; the fiberglass fabrics are divided into fiberglass units with the number equal to the bundle number in the wiring direction, the width of the fiberglass units is obtained according to the dimension and the quantity of the fiberglass fabrics in the direction vertical to the wiring direction, and the fiberglass units comprise fiberglass in the wiring direction and the adhesives; the line distance and the line width of the differential signal line are determined according to the width of the fiberglass units; and wiring is performed on a metal layer along the wiring direction according to the line distance and the line width to form the required differential signal line, and the metal layer is pasted on the surface of the fiberglass fabrics. According to the method, the problems of high cost, large occupied wiring space, and long wiring time of the conventional control differential signal delay wiring method are solved.
Owner:ZTE CORP

Array substrate and preparation method thereof

The invention discloses an array substrate and a preparation method thereof. The array substrate comprises a substrate, a buffer layer, a semiconductor pattern layer, a first grid electrode insulation layer, a second grid electrode insulation layer, a first conductive pattern layer, an interlayer insulation layer and a second conductive pattern layer, wherein the substrate comprises a thin-film transistor region and a capacitor region; the buffer layer is formed on the substrate; the semiconductor pattern layer is formed on the buffer layer and comprises a source and drain electrode region and a first electrode; the first grid electrode insulation layer is formed on the semiconductor pattern layer and correspondingly covers regions, except the first electrode, of the thin-film transistor region and the capacitor region; the second grid electrode insulation layer is formed on the first grid electrode insulation layer; the first conductive pattern layer is formed on the second grid electrode insulation layer and comprises a grid electrode and a second electrode; the interlayer insulation layer is formed on the first conductive pattern layer; the second conductive pattern layer is formed on the interlayer insulation layer and comprises a source electrode and a drain electrode which are coupled with the source and drain electrode region as well as a third electrode. With the adoption of the array substrate and the preparation method thereof, the capacitance of a capacitor is increased, film layer structures of the regions except the capacitor region are not changed, the signal line load is effectively decreased, and meanwhile, short-circuit risks of upper and lower film layers of the grid electrode insulation layers are reduced.
Owner:KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD

Capacitive electromagnetic flowmeter

The invention relates to a capacitive electromagnetic flowmeter. A sensor of the capacitive electromagnetic flowmeter comprises a high-dielectric-constant industrial ceramic liner and a non-contact plated metal detecting sheet electrode. The sensor is provided with two opposite excitation coils serially connected to excite the inside of the sensor. The metal detecting electrode and a metal shielding electrode are connected to input and output ends of an operational preamplifier respectively to allow for equipotential shielding. A timing control circuit controls a switch of a full-bridge inverter circuit and an analog switch of a flow signal processing circuit according to logic signals of exciting current so as to control the exciting current in the coils and process the flow signals. The full-bridge inverter circuit is capable of enhancing the exciting current to increase the signal-to-noise ratio of the flow signals while inhibiting differential disturbing influence. The full-bridge inverter circuit is used with the timing control circuit to centrally control the power switch of the inverter circuit and the analog switch of the flow signal processing circuit, differential disturbance in the flow signals are removed accurately, and reliable detection on fluid flow is realized finally.
Owner:FUJIAN WIDE PLUS PRECISION INSTR
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products