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32results about How to "No flickering phenomenon" patented technology
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Controllable silicon dimming circuit with nondestructive leakage circuit and method thereof
ActiveCN102946674ASimple structureImprove utilization efficiencyElectroluminescent light sourcesDc-dc conversionEngineeringAlternating current
The invention provides a controllable silicon dimming circuit with a nondestructive leakage circuit. Sine alternating-current voltage received by the controllable silicon dimming circuit is processed by controllable silicon and a rectified bridge to obtain default phase input voltage, and the default phase input voltage is input to a power level circuit to perform electric energy conversion so as to drive light load. The leakage circuit is used for controlling a main switch tube in the power level circuit in a first preset time interval so as to perform opening and closing movement in a specific mode to provide a charging circuit loop for a controllable silicon circuit. The controllable silicon dimming circuit does not need extra leakage switches and related elements, is simple in structure, does not generate extra energy consumption in a leakage process, and improves utilization efficiency of electric energy. In addition, an enable signal controls the power level circuit to stop working before input current is reduced to holding current of the controllable silicon, the state is maintained in a second preset time interval, namely load current in a connection interval of the controllable silicon is guaranteed to be above the holding current of the controllable silicon always, and sparkling of a light-emitting diode (LED) lamp caused by misconnection of the controllable silicon is avoided.
Owner:SILERGY SEMICON TECH (HANGZHOU) CO LTD
Display device and driving method thereof
The present invention discloses a display device and a driving method thereof. The display device comprises a display panel and a cleanup voltage generation module; the display panel comprises scanning lines and data lines which are criss-crossed, a common electrode, a pixel electrode, a plurality of pixel areas crosswise limited by the scanning lines and the data lines and a plurality of cleanupvoltage lines; the cleanup voltage generation module outputs cleanup voltages to the cleanup voltage lines and outputs a common voltage to the common electrode; each pixel area is internally providedwith a first thin film transistor and a second thin film transistor; the grid of each second thin film transistor is connected with the cleanup voltage lines, the source of each second thin film transistor is connected with the pixel electrode, and the drain of each second thin film transistor is connected with a common voltage line; and when the display device is shut down, the cleanup voltages are high level, the second thin film transistors are opened, the drains of the first thin film transistors and the pixel electrode connected with the drains of the first thin film transistors are in short connection with the common electrode, the display frame is a black state without a splash screen phenomenon; and the residual charges in the pixel area are completed released. The present invention further discloses a driving method of the display device.
Owner:NANJING CEC PANDA FPD TECH CO LTD
Dimming drive circuit of AC (Alternating Current) direct drive LED module
ActiveCN102892238AColor temperature adjustableColor adjustableElectrical apparatusElectroluminescent light sourcesDriver circuitAlternating current
The invention discloses an AC (Alternating Current) dimming drive circuit for an LED (Light-Emitting Diode). The AC dimming drive circuit comprises a rectification unit and N levels of LED DC (Direct Current) drive circuits, wherein in the ith-level LED DC drive circuit, a first end of an ith voltage sampling unit and the input end of an ith LED light source module directly or indirectly receive the output voltages of the rectification unit; the voltage diving end of the ith voltage sampling unit is connected with a second input end of an ith switching unit; a first input end of the ith switching unit is connected with the output end of the ith LED light source module; the output end of the ith switching unit, a second end of the ith voltage sampling unit and a second output end of the rectification unit are grounded; when the ith switching unit is switched on, the first to ith LED light source modules emit light; and when the ith switching unit is switched off, if i is less than N, the first to (i+1)th LED light source modules emit light, and if i is equal to N, the first to Nth LED light source modules stop emitting light. By utilizing the dimming drive circuit, the AC direct drive LED light source module is realized and cannot twinkle when the AC voltage fluctuates.
Owner:四川能投智慧光电有限公司
Backlight adjusting method and device
InactiveCN112509527ANo flickering phenomenonStable outputStatic indicating devicesEngineeringVisual perception
The embodiment of the invention discloses a backlight adjusting method and device. The method comprises the steps of obtaining the current light brightness of ambient light at the current moment; determining a brightness change trend corresponding to the ambient light according to the current light brightness and the ambient light brightness collected at the previous moment; determining a target backlight grade corresponding to the current light brightness according to a preset corresponding relationship between the hysteresis brightness and the grade and the brightness change trend, the preset corresponding relationship between the hysteresis brightness and the grade comprising a preset corresponding relationship between the rising hysteresis brightness and the grade or a preset corresponding relationship between the falling hysteresis brightness and the grade; when ambient light fluctuates within a certain range, the backlight level can be stably output, the flickering phenomenon that the screen flickers suddenly is avoided, the visual perception is improved, and the service life of the display screen is prolonged.
Owner:SHANGHAI OUFEI INTELLIGNET VEHICLE INTERNET TECH CO LTD
led dimming drive circuit
ActiveCN104540287BColor temperature adjustableColor adjustableElectric light circuit arrangementDriver circuitTerminal voltage
The invention relates to an LED dimming driving circuit, which includes a rectifying unit and an N-level LED direct current driving circuit. Wherein, the i-th LED DC drive circuit is composed of an i-th voltage sampling unit, an i-th switching unit and an i-th LED light source module. N is a natural number, i=1,2,3,...,N; the first end of the i-th voltage sampling unit and the input end of the i-th LED light source module are jointly connected to the first output end of the rectification unit when i is 1 , when i is not 1, they are commonly connected to the output end of the i‑1th LED light source module. The second end of the i-th voltage sampling unit is grounded, and the voltage dividing end of the i-th voltage sampling unit is connected to the second input end of the i-th switch unit. The first input end of the i-th switch unit is connected to the output end of the i-th LED light source module, and the output end of the i-th switch unit and the second output end of the rectification unit are grounded. The invention is compatible with traditional thyristor dimmers, and realizes adjustment of brightness, color temperature or color without separate wiring.
Owner:SICHUAN SUNFOR LIGHT
HDMI service equipment
ActiveCN104994320ANo flickering phenomenonReduce flickerTelevision system detailsColor television detailsControl signalData transmission
An embodiment of the invention provides HDMI service equipment and relates to the television technology field. By using the equipment, generation of a screen flicker phenomenon of the HDMI service equipment is reduced. The HDMI service equipment comprises a HDMI interface, a transmission branch, a first switch unit and a control processor. A first end of the transmission branch is connected to a voltage pin of the HDMI interface. A second end of the transmission branch is connected to a HPD pin of the HDMI interface. A first end of the first switch unit is connected to the transmission branch. A second end of the first switch unit is grounded. A control end of the first switch unit is connected to the control processor. The control processor is used to sent a control signal to the first switch unit so as to control conduction and disconnection of the first switch unit when a situation that HDMI external connection equipment accesses the HDMI service equipment is determined. The equipment is suitable for a HDMI data transmission scene.
Owner:HISENSE VISUAL TECH CO LTD
Image processing method, device and system and display device
ActiveCN109194944AAvoid visual fatigueNo flickering phenomenonSteroscopic systemsImaging processing3 d display
The present invention provides an image processing method, device and system and a display device, belonging to the technical field of display. The method comprises the steps of: obtaining two continuous images, and identifying 2D display areas and 3D display areas in the two images; maintaining the data in the 2D display area of each frame unchanged, and performing compression of the data in the3D display areas to obtain processed images; and alternately outputting the two processed images to a display, wherein the alternately output images are configured to be displayed alternately by the display screen. Therefore, watchers only need to wear polaroid glasses to see the images in the 2D display areas in a 2D display effect and see the images in the 3D display areas in the 3D display effect. When the polaroid glasses are cooperated with the images for display, the polaroid glasses cannot generate blinking so as to avoid visual fatigue of the watcher and overcome the problem in the traditional time-share three-dimensional display technology. The image processing method, device and system and the display device are used for processing of the 2D+3D fusion image.
Owner:BOE TECH GRP CO LTD
A dual-frequency mixed spectrum type and pulse width regulation type dimming electronic ballast
InactiveCN101217848ANo flickering phenomenonChange brightnessElectrical apparatusElectric lighting sourcesDriver circuitDual frequency
The invention provides a dual-frequency lighting mixed pulse width modulation dimming electronic ballast, relating to an electronic ballast. The invention provides a dual-frequency lighting mixed pulse width modulation dimming electronic ballast which can ensure the lightness of the lamp to be in 100% to 30% with reliable light modulation, leads to no flashing lamp phenomenon, is convenient for being applied in single-line illumination control circuits and can be widely applied to existing energy-saving lamps and ballasts. The invention is provides with a rectification circuit, a zero cross detection circuit, a system control circuit, a dual-frequency point power output circuit and a lamp driving circuit. The input terminal of the rectification circuit is externally connected with a power supply; the input terminal of the zero cross detection circuit is connected with the output terminal of the rectification circuit; the input terminal of the system control circuit is connected with the output terminal of the zero cross detection circuit; the power supply input terminal of the dual-frequency point power output circuit is connected with the output terminal of the rectification circuit; the control input terminal of the dual-frequency point power output circuit is connected with the system control circuit; the input terminal of the lamp driving circuit is connected with the output terminal of the dual-frequency point power output circuit; the output terminal of the lamp driving circuit is externally connected with loads.
Owner:李东方 +2
Dimming drive circuit of AC (Alternating Current) direct drive LED module
ActiveCN102892238BColor temperature adjustableColor adjustableElectrical apparatusElectroluminescent light sourcesDriver circuitEngineering
Disclosed is an alternating current dimming drive circuit for an LED, comprising a rectification unit and N stages of LED direct current drive circuits. In the ith stage of LED direct current drive circuit, a first end of the ith voltage sampling unit and an input end of the ith LED light source module directly or indirectly receive the output voltage of the rectification unit; a voltage division end of the ith voltage sampling unit is connected to a second input end of the ith switch unit; and a first input end of the ith switch unit is connected to an output end of the ith LED light source module, and an output end of the ith switch unit, a second end of the ith voltage sampling unit and a second output end of the rectification unit are grounded. When the ith switch unit is switched on, the first to the ith LED light source modules emit light. When the ith switch unit is switched off, if i is less than N, the first to the (i + 1)th LED light source modules emit light, and if i is equal to N, the first to the Nth LED light source modules stop emitting light. The present invention realizes an alternating current directly-driven LED light source module and will not flicker in the case of alternating current voltage fluctuation.
Owner:四川能投智慧光电有限公司
Cold cathode fluorescent lamp assembly
InactiveCN1705074ANo flickering phenomenonPicture stabilizationLighting support devicesGas discharge lamp detailsCold cathodeEngineering
A cold cathode fluorescent lamp assembly contains metal lamp stand, conductive piece and cold cathode fluorescent lamp which are in metal lamp stand, the conductive piece contacted with metal lamp stand and cold cathode fluorescent lamp which is coated with conductive layer on outer surface, in lighting process the overcurrent is led to metal lamp stand by conductive piece and conductive layer, then led to outer side by metal lamp stand.
Owner:TPO DISPLAY
Handwriting display processing method, system and device, equipment and storage medium
PendingCN114237481ADisplay delay is smallReduce display lagDigital output to display deviceHandwritingData display
The embodiment of the invention provides a handwriting display processing method, system, device and equipment and a storage medium, which are applied to a first operating system sharing a display screen with a second operating system running writing software. The first operating system receives a writing starting instruction sent by the second operating system; acquiring handwriting attribute information from the second operating system, and acquiring writing touch data currently input on the display screen by the user; according to the handwriting attribute information, displaying a first target handwriting corresponding to the writing touch data on a display screen, and performing partial erasing processing on the target rendered handwriting; the first target handwriting covers a second target handwriting corresponding to the writing touch data displayed on the display screen by the second operating system. The problems that when writing software running in the second operating system is used for handwriting drawing, the writing handwriting display delay time is long, and the phenomenon of rendering difference and flicker exists when double operating systems jointly conduct handwriting drawing are solved.
Owner:RUIJIE NETWORKS CO LTD
Checker of flat display
ActiveCN1661423AAutomatic brightness controlExtend your lifeStatic indicating devicesWinding mechanismsAutomatic controlDisplay device
A flat panel display inspection apparatus automatically controls brightness of a backlight source according to the magnitude of a flat panel display by means of a ballast stabilizer with a dimming control circuit for brightness adjustment. The flat panel display inspection apparatus for inspecting an appearance of a flat panel display using a backlight lamp emitting light includes: a support unit for supporting the flat panel display; a ballast stabilizer for including a dimming control circuit continuously adjusting brightness of the backlight lamp, and applying a constant voltage to the backlight lamp; a converter controller for transmitting a DC voltage of a predetermined range, adapted to control an output signal of the ballast stabilizer, to the dimming control circuit; and a controller for transmitting a dimmer value adapted to establish a magnitude of the DC voltage to the converter controller.
Owner:DE&T
Cold cathode fluorescent lamp assembly
InactiveCN100342481CNo flickering phenomenonPicture stabilizationLighting support devicesGas discharge lamp detailsOvercurrentEffect light
A cold cathode fluorescent lamp assembly contains metal lamp stand, conductive piece and cold cathode fluorescent lamp which are in metal lamp stand, the conductive piece contacted with metal lamp stand and cold cathode fluorescent lamp which is coated with conductive layer on outer surface, in lighting process the overcurrent is led to metal lamp stand by conductive piece and conductive layer, then led to outer side by metal lamp stand.
Owner:TPO DISPLAY
Method for preparing barium tungsten electrode
InactiveCN102142342BImprove abilitiesIncrease current densityThermionic cathode manufactureParaffin waxBurn treatment
Owner:GUANGZHOU HUIFENG ELECTRONICS SCI & TECHCO
A light source drive circuit and a control circuit for controlling the power of the light source
ActiveCN105657927BNo flickering phenomenonImprove conversion efficiencyElectrical apparatusElectroluminescent light sourcesControl circuitLight-emitting diode
The invention discloses a light source drive circuit and a control circuit for controlling the electric energy of the light source. The light source includes a first plurality of light-emitting diodes and a second plurality of light-emitting diodes. The light source receives a DC voltage. When the DC voltage is within a first preset range, the control circuit only makes the first plurality of light-emitting diodes emit light; When within the two preset ranges, the control circuit makes both the first plurality of light emitting diodes and the second plurality of light emitting diodes emit light, and the total power of the light source is substantially constant without being affected by changes in the DC voltage. The light source driving circuit and the control circuit for controlling the power of the light source provided by the present invention can improve the conversion efficiency of the light source driving circuit in a flexible manner, and the state alternation is imperceptible to the naked eye for the user, so the power of the light source is substantially constant and not The light source flickers.
Owner:AOTU ELECTRONICS WUHAN
Eye-protection classroom lighting lamp
PendingCN111878783AControl ratioRaise the ratioGlobesSpectral modifiersEngineeringPhotoelectric conversion
The invention relates to the technical field of lighting, in particular to an eye-protection classroom lighting lamp which comprises a lamp ballast, a lamp shell and a lamp tube. A self-closing lifting hook used for being fixed to a building and an input end cable used for power input are fixedly arranged at the top of the lamp ballast, and the lamp ballast is fixed to the top of the outer side ofthe lamp shell through screws; and a nanometer reflecting cover is fixedly arranged at the top of the inner side of the lamp shell, the lamp tube is fixed to the bottom of the nanometer reflecting cover through a lamp tube connecting piece, the lamp tube is of an annular electromagnetic induction lamp tube structure, and an optical PC cover is fixedly connected to the bottom of the lamp shell inan involution manner. According to the eye-protection classroom lighting lamp, an electromagnetic induction lamp is adopted for photoelectric conversion, diffuse reflection of the lamp is achieved, the problems of dazzle light and dazzling of the lamp are solved, and the lamp has market prospects and is suitable for popularization.
Owner:杭州莱特司无极光照明有限公司
Image processing method, device and system, and display device
ActiveCN109194944BAvoid visual fatigueNo flickering phenomenonSteroscopic systemsImaging processingComputer graphics (images)
The present invention provides an image processing method, device and system and a display device, belonging to the technical field of display. The method comprises the steps of: obtaining two continuous images, and identifying 2D display areas and 3D display areas in the two images; maintaining the data in the 2D display area of each frame unchanged, and performing compression of the data in the3D display areas to obtain processed images; and alternately outputting the two processed images to a display, wherein the alternately output images are configured to be displayed alternately by the display screen. Therefore, watchers only need to wear polaroid glasses to see the images in the 2D display areas in a 2D display effect and see the images in the 3D display areas in the 3D display effect. When the polaroid glasses are cooperated with the images for display, the polaroid glasses cannot generate blinking so as to avoid visual fatigue of the watcher and overcome the problem in the traditional time-share three-dimensional display technology. The image processing method, device and system and the display device are used for processing of the 2D+3D fusion image.
Owner:BOE TECH GRP CO LTD
Controllable silicon dimming circuit with nondestructive leakage circuit and method thereof
ActiveCN102946674BSimple structureImprove utilization efficiencyElectrical apparatusElectroluminescent light sourcesPower flowLED lamp
Thyristor dimming circuits and methods are disclosed herein. In one embodiment, a thyristor dimming circuit can include: (i) a thyristor and a rectifier bridge configured to receive a sinusoidal AC voltage, and to generate a phase-loss input voltage; (ii) a power stage circuit configured to have the phase-loss input voltage applied thereto, the power stage circuit having a main switch and being configured to drive a lamp load through electrical conversion; and (iii) a discharging circuit configured, during a first predetermined time interval, to control the main switch to operate with a fixed duty cycle at a fixed frequency, where the first predetermined time interval begins prior to an absolute value of the sinusoidal AC voltage being reduced to zero, the first predetermined time interval ending when the phase-loss input voltage is again applied to the power stage circuit.
Owner:SILERGY SEMICON TECH (HANGZHOU) CO LTD
Drive circuit and display device
PendingCN113689815AImprove viewing angleImprove the display effectStatic indicating devicesComputer graphics (images)Display device
The invention discloses a drive circuit and a display device. The level conversion drive circuit comprises a generation module which is used for generating image data; a control module is used for judging whether the generation module updates the image data or not; a time sequence module is used for displaying a picture based on the image data; and if the generation module updates the image data and the picture corresponding to the updated image data is overlapped with the picture corresponding to the image data before updating, the time sequence module stops displaying the picture corresponding to the image data before updating and displays the picture corresponding to the updated image data. According to the invention, the picture corresponding to the updated image data can be prevented from overlapping with the picture corresponding to the image data before updating, so that the visual angle can be improved, a flicker phenomenon cannot be generated in a time domain operation mode, and the display effect of the display device is improved.
Owner:TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
LED driver circuit
ActiveCN105338683BLuminous stabilityNo flickering phenomenonElectric light circuit arrangementPower flowTransmission gate
The light emitting diode driving circuit includes a voltage source, a plurality of current control circuits, at least a third resistor and at least one transmission gate. The voltage source is used to provide an input voltage. Each current control circuit includes a first switch, a comparator, a first resistor and a second resistor. The first switch is coupled to a corresponding group of light emitting diodes. The comparator is coupled to a corresponding reference voltage and the switch. The first resistor is coupled to the comparator and the first switch, and the second resistor is coupled to the first switch and a common reference voltage. The third resistor is coupled to the first switch of a current control circuit in the plurality of current control circuits, and the transmission gate is coupled between the third resistor and another current control circuit in the plurality of current control circuits. between the comparators.
Owner:ELITE SEMICON MEMORY TECH INC +1
A display device and its driving method
The invention discloses a display device and its driving method. The display device includes: a display panel and a clearing voltage generation module. A plurality of pixel areas and a plurality of clearing voltage lines are defined; the clearing voltage generation module outputs the clearing voltage to the clearing voltage line, and outputs the common voltage to the common electrode; each pixel area is provided with a first thin film transistor and a second thin film transistor; The gate of the second thin film transistor is connected to the clearing voltage line, the source is connected to the pixel electrode, and the drain is connected to the common voltage line; The pixel electrode connected to it is short-circuited with the common electrode, and the display screen is in a black state without flickering; at the same time, the residual charge in the pixel area is completely released; the invention also discloses its driving method.
Owner:NANJING BOE DISPLAY TECH CO LTD
A dual-frequency mixed spectrum type and pulse width regulation type dimming electronic ballast
InactiveCN101217848BNo flickering phenomenonChange brightnessElectrical apparatusElectric lighting sourcesDual frequencyMixed spectrum
Owner:李东方 +2
Checker of flat display
ActiveCN100474040CAutomatic brightness controlExtend your lifeStatic indicating devicesWinding mechanismsAutomatic controlDisplay device
A flat panel display inspection apparatus automatically controls brightness of a backlight source according to the magnitude of a flat panel display by means of a ballast stabilizer with a dimming control circuit for brightness adjustment. The flat panel display inspection apparatus for inspecting an appearance of a flat panel display using a backlight lamp emitting light includes: a support unit for supporting the flat panel display; a ballast stabilizer for including a dimming control circuit continuously adjusting brightness of the backlight lamp, and applying a constant voltage to the backlight lamp; a converter controller for transmitting a DC voltage of a predetermined range, adapted to control an output signal of the ballast stabilizer, to the dimming control circuit; and a controller for transmitting a dimmer value adapted to establish a magnitude of the DC voltage to the converter controller.
Owner:DE&T
LED constant-flow driver
InactiveCN100571479CWork remains constantThe operating current remains constantElectric light circuit arrangementMOSFETEngineering
The invention discloses a drive in constant current for LED. Passing through circuits of filter, transformation, rectification filter in high frequency and electric current sampling circuit, electric signal is input to load. One input end of isolated negative feedback circuit receives signal outputted from an output end of the sampling circuit, and the other end receives inputted signal of protective circuit from the rectification filter circuit. One input end of PWM pulse width control circuit receives signal from negative feedback circuit, and the other end receives inputted signal of positive feedback circuit from the transformation circuit (TC). Through V-MOSFET power switch, signal output from the PWM controls TC. Combination between PWM and V-MOSFET power switch makes PWM produced pulse width adjustable. The invention also makes frequency be adjusted automatically when load is changed. Advantages are: constant working current, less power consumption, and low cost.
Owner:BEIJING LAMPEARL PHOTOELECTRIC
Multiple light-source driver, light-crystal displaying device and driving method thereof
InactiveCN1310206CAvoid ambiguityReduce brightnessCathode-ray tube indicatorsRelative luminanceEffect light
A method for driving a liquid crystal display comprises the first luminance adjusting procedure and the second luminance adjusting procedure. In the first luminance adjusting procedure, the relative luminance between a plurality of lighting units is adjusted to make the luminance distribution of the equal lighting units on the displayed tableau on the displaying panel of the liquid crystal display assume a dark zone which covers the position of a driven scanning line; in the second luminance adjusting procedure, the relative luminance between the equal lighting units is adjusted again in a certain sequence to make the position of the dark zone change to ensure that another driven scanning line is positioned in the dark zone. Furthermore, the invention also provides a liquid crystal display and a driver of complex light sources.
Owner:GIGNO TECH CO LTD
Method for preparing barium tungsten electrode
InactiveCN102142342AEasy to operateProduct quality is easy to controlThermionic cathode manufactureParaffin waxHydrogen
The invention discloses a method for preparing a barium tungsten electrode, which comprises the following steps of: uniformly mixing Ba(Ca) ZrO3 powder with tungsten powder and a paraffin wax solution, removing a solvent, and pressing an electrode; raising the temperature of the pressed electrode to remove wax, and then warming to 1800-2000 DEG C to preserve heat; and carrying out hydrogen burning treatment for the electrode, and obtaining the barium tungsten electrode. The method for preparing the barium tungsten electrode is simple to operate, and the quality of product is easily controlled. The electron emission ability of the prepared barium tungsten electrode is improved, the electronic current density of electronic emission is increased, and the light intensity is increased. The glow starting speed of an HID lamp can be improved. When the lamp is used in a stroboscopic state, the stroboscopic frequency can be obviously increased, and the non-flickering phenomenon does not exist. The working temperature of the electrode is reduced, and the service life of the lamp is prolonged.
Owner:GUANGZHOU HUIFENG ELECTRONICS SCI & TECHCO
Real-time image displaying method based on ultrasonic imaging logging data collection process
ActiveCN109538189ANo flickering phenomenonImprove drawing speedConstructionsDigital output to display deviceUltrasound imagingArray data structure
The invention discloses a real-time image displaying method based on an ultrasonic imaging logging data collection process. The method comprises the steps that a drawing buffer area and an array are distributed in an internal storage, and a color bar is established; when a computer starts a data receiving thread, if data is not received, the computer is in a waiting state, otherwise, received datais stored in the array, then whether or not the depth difference meets the predetermined condition is judged, if yes, a drawing thread is started, and if not, the data continues to be stored in the array; after the drawing thread is started, a temporary drawing buffer area is established, an amplitude in the array and all sampling points of traveling time difference data are converted into colorsin the color bar, and then the colors are output to the temporary drawing buffer area; then, according to the logging direction, images in the temporary drawing buffer area are output to the drawingbuffer area which is established at first according to different modes and output to a screen at last, and the drawing thread is hung for waiting for starting of a next thread. According to the method, the two-dimensional images can be quickly drawn in real time, and in the collection process, through scroll bars, the drawn images are checked anytime.
Owner:BEIJING RES INST OF URANIUM GEOLOGY
Novel fluorescent lamp
InactiveCN101555995BNo flickering phenomenonThere is no problem of burning the filamentElectrical apparatusElongate light sourcesCapacitanceSilicon-controlled rectifier
The invention relates to a novel fluorescent lamp which comprises a lighting tube, electrodes, an inductance, a resistance and a capacitor, wherein, the left end and the right ends of the lighting tube are respectively provided with an electrode which are of a semicircle spherical shape in the lighting tube; the fluorescent lamp also comprises a trigger diode and bidirectional thyristors; in a circuit, one bidirectional thyristor is adopted to generate pulse voltage which is pressurized by a resistance-capacity coupling circuit to trigger the other bidirectional controlled silicon, thus arousing fluorescent powder or saturated inert gases in the lighting tube. As the fluorescent lamp is provided with a filament loop in the lighting tube, the problem of burning out filament does not exist,and part of electrical energy can not be consumed since the filament emits heat. In addition, the bidirectional thyristors are arranged, so that high voltage of the capacitance can be prevented from discharging towards the lighting tube suddenly after the lighting tube normally shines, and the lighting tube does not generate twinkle, thus the luminance brightness is stable.
Owner:余锐佳
Novel fluorescent lamp
InactiveCN101555995ANo flickering phenomenonThere is no problem of burning the filamentElectrical apparatusElongate light sourcesCapacitanceDIAC
The invention relates to a novel fluorescent lamp which comprises a lighting tube, electrodes, an inductance, a resistance and a capacitor, wherein, the left end and the right ends of the lighting tube are respectively provided with an electrode which are of a semicircle spherical shape in the lighting tube; the fluorescent lamp also comprises a trigger diode and bidirectional thyristors; in a circuit, one bidirectional thyristor is adopted to generate pulse voltage which is pressurized by a resistance-capacity coupling circuit to trigger the other bidirectional controlled silicon, thus arousing fluorescent powder or saturated inert gases in the lighting tube. As the fluorescent lamp is provided with a filament loop in the lighting tube, the problem of burning out filament does not exist, and part of electrical energy can not be consumed since the filament emits heat. In addition, the bidirectional thyristors are arranged, so that high voltage of the capacitance can be prevented from discharging towards the lighting tube suddenly after the lighting tube normally shines, and the lighting tube does not generate twinkle, thus the luminance brightness is stable.
Owner:余锐佳
A Method of Real-time Image Display in the Process of Ultrasonic Imaging Logging Data Acquisition
ActiveCN109538189BNo flickering phenomenonImprove drawing speedConstructionsDigital output to display deviceComputer graphics (images)Ultrasonic imaging
The invention discloses a method for displaying images in real time during the acquisition process of ultrasonic imaging logging. Firstly, a drawing buffer and an array are allocated in the memory, and a color bar is established; when the computer starts the thread for receiving data, if no data It is in a waiting state, otherwise, store the received data into the array, and then judge whether the depth difference meets the set conditions, if so, start the drawing thread, otherwise continue to store data in the array; after the drawing thread starts, create a temporary drawing buffer , and convert each sampling point of the amplitude and travel time difference data in the array into the color in the color bar, and then output it to the temporary drawing buffer; then output the images in the temporary drawing buffer to different ways according to the logging direction In the drawing buffer created at the beginning, it is finally output to the screen, and the drawing thread is suspended, waiting for the next thread to start. The method can draw a two-dimensional image in real time and quickly, and the drawn image can be viewed through a scroll bar at any time during the acquisition process.
Owner:BEIJING RES INST OF URANIUM GEOLOGY
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