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245results about How to "Fast response time" patented technology

Display panel and display device

The invention discloses a display panel and a display device. The display panel comprises a first substrate, a liquid crystal layer, a waveguide layer, a grating layer, a first electrode and a second electrode, the liquid crystal layer, the first electrode and the second electrode are positioned between the waveguide layer and the first substrate, the first electrode and the second electrode are used for adjusting the refractive index of the liquid crystal layer, the liquid crystal layer is used for controlling light emission from the waveguide layer in a coupling manner, the coupling light emission quantity of the waveguide layer is determined according to the difference between the refractive index of the waveguide layer and the refractive index of the liquid crystal layer, and the grating layer is used for controlling light with a special wavelength among the light coupled from the waveguide layer to be emitted in a special direction. A polarizing film and a color resistor set in the display panel are omitted, so that transmittance of the display panel is improved. As the polarizing film set in the display panel is omitted, the overall phase retardation quantity of the liquid crystal layer is not required, a liquid crystal box can be thin, and the response time of liquid crystals is prolonged.
Owner:BOE TECH GRP CO LTD

Full-duplex communication device based on SPI and method thereof

The invention relates to a full-duplex communication device based on an SPI (serial peripheral interface) and a method thereof. The device comprises a main component, a slave component, a data line used for the mutual communication between the main component and the slave component, a synchronous clock signal line, a slave component selecting signal line and a signal line which is used for requesting the slave component to receive data by the main component and requesting the main component to receive data by the slave component, and the lines are arranged between the main component and the slave component. The communication method comprises the steps that data are sent simultaneously by the main component and the slave component to each other, data are sent from the main component to the slave component, data are sent from the slave component to the main component, and data frames are used for the communication between the main component and the slave component. According to the full-duplex communication device based on the SPI and the method thereof, a full-duplex communication mode is realized, under the condition that the communication rate is invariable, communication efficiency is improved, system response time is improved, and communication data throughput is increased by one time in an ideal condition; and the integrality and the accuracy of respective data frame when data are sent by both of the SPI communication sides at the same time are guaranteed through data verification and the like.
Owner:HUIZHOU DESAY SV AUTOMOTIVE

Liquid crystal display device

The embodiment of the invention discloses a liquid crystal device, and belongs to the technical field of display. The liquid crystal display device comprises an array substrate, a color filter substrate, a liquid crystal layer and frame glue, wherein the array substrate comprises a plurality of scanning lines in parallel, insulated layers arranged on the surfaces of the scanning lines, a plurality of parallel data lines arranged on the surfaces of the insulated layers, a plurality of pixel electrodes arranged on the surfaces of the insulated layers and distributed in a matrix, passivation layers covering the surfaces of the pixel electrodes and the surfaces of the data lines, and a plurality of first common electrodes which cover the surfaces of the passivation layers and are parallel with the data lines and crossed with the scanning lines; the color filter substrate comprises a black matrix, a color resistance layer, a flat layer and a second common electrode covering the surface of the flat layer, and the second common electrode is of a net-shaped structure, the net-shaped structure is a certain distance away from the data lines and the scanning lines in the vertical direction and the net-shaped structure is relatively overlapped with the data lines and the scanning lines. The penetration rate of the liquid crystal display device rises, and the response speed is improved.
Owner:KUSN INFOVISION OPTOELECTRONICS

Pipeline leakage on-line monitoring device and method based on f fiber temperature detection

The invention relates to a pipeline leakage on-line monitoring device and method based on f fiber temperature detection, and belongs to the technical field of pipeline monitoring. The fiber temperature detection based pipeline leakage on-line monitoring device is characterized in that a monitoring main machine is communicated with a temperature sensing optical cable in a communication optical cable way or a wireless signal transmission way; and a light signal sent from the laser source of the monitoring main machine is transmitted to a microprocessor through the temperature sensing optical cable, a signal receiver, a wavelength division multiplexer and an amplifier for processing. The fiber temperature detection based pipeline leakage on-line monitoring method comprises the following steps that: the monitoring main machine is communicated with the temperature sensing optical cable in the communication optical cable way or the wireless signal transmission way; the temperature sensing optical cable senses the change of pipeline leakage temperature and generates a reflected light sensing signal for a laser of the laser source; the signal receiver receivers the light signal and transmits to the microprocessor through the wavelength division multiplexer and the amplifier for processing; and the microprocessor analyzes and displays on-line monitored pipeline leakage. The pipeline leakage on-line monitoring device and method based on the fiber temperature detection have the advantages of wide coverage range, high positioning accuracy, short response time, low false alarm rate, real-time on-line detection, and the like.
Owner:E TECH ENERGY TECH DEV CORP
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