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45results about How to "Reduce current difference" patented technology
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Power distribution network electromagnetic optimization dynamic loss reduction method, system and synthetic loss reduction system
InactiveCN101404414ARealization of comprehensive loss reductionSelf loss is smallPolyphase network asymmetry elimination/reductionReactive power adjustment/elimination/compensationElectromagnetic optimizationEngineering
The invention relates to a dynamic loss reduction method for a distribution network and a synthesized loss reduction system of a distribution network. A principle that an electric field and a magnetic field are mutually symbiotic and affected is applied for dynamically realizing electromagnetic balance; the treatment of'peak load shifting'is carried out on the current difference value between three-phase unbalanced currents caused by the dynamic unbalance of the power used by a three-phase load at the secondary side of a distribution transformer so as to lead the current difference value to approach balance, reduce a zero sequence current and the unbalance degree of the three phases, and restrain a harmonic, thereby realizing the self loss (loss on transmission) of the distribution transformer and the line loss (the copper loss of the line) at the first side and the secondary side of the distribution transformer; the synthesized loss reduction system of the distribution network realizes the synthesized loss reduction management of the distribution network, the loss on transmission of the distribution transformer as well as the automatic measuring and accounting on the data of the copper loss of the line at the first side and the secondary side thereof; the system also realizes the remote automatic collection on the power data of the distribution transformer in the same time as well as the accounting of the line loss of a distribution line, calculates and accounts the line loss of the distribution network, calculates and analyzes the loss reduction as well as analyzes the benefits of energy saving and emission reduction.
Owner:王磊
Display and display panel thereof
ActiveCN109742128ASimple designReduce current differenceStatic indicating devicesFinal product manufactureDisplay deviceElectrical impedance
The invention discloses a display and a display panel. A VDD wire is added in a special-shaped display area and the VDD wire is connected with pixels in the special-shaped display area through a plurality of breakover wires, so that benefit is brought to the design of narrow frames and the split screen risk caused by relatively large impedance is avoided.
Owner:KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD
Driving circuit for backlight system of light-emitting diode
InactiveCN101848575AReduce complexityLow costStatic indicating devicesElectric light circuit arrangementAudio power amplifierReference current
The invention discloses a driving circuit for a backlight system of a light-emitting diode, which comprises input voltage, input resistance, an operational amplifier, a first transistor and a current arithmetic unit, wherein the positive input end of the operational amplifier is electrically connected with the input voltage through the input resistance, and the output end of the operational amplifier is electrically connected with the negative input end of the operational amplifier through a feedback network; the first transistor is used for acquiring reference current according to the input voltage and the input resistance to control the output voltage of the operational amplifier; and the current arithmetic unit is used for generating a plurality of operating currents which are proportional to the reference current according to the output voltage of the operational amplifier to drive a plurality of light-emitting diode series groups.
Owner:华映视讯(吴江)有限公司 +1
Pixel circuit for compensating shift of threshold voltage and thin film transistor backplane
The embodiment of the invention provides a pixel circuit for compensating shift of a threshold voltage and a thin film transistor backplane, so as to solve the problem of uneven display of an image caused by the shift of the threshold voltage in the prior art. The pixel circuit comprises a driver module and a signal loading module, wherein the driver module comprises a VDD (virtual device driver) signal source, a driver transistor T1, a storage capacitance C1 and an OLED (organic light emitting diode) D1; a grid electrode of the driver transistor T1 is connected with an output end of the signal loading module and drives the OLED D1 to emit light; one end of the storage capacitance C1 is connected with an output end of the VDD signal source, and the other end of the storage capacitance C1 is connected with the grid electrode of the driver transistor T1; the driver module further comprises a p-shaped decaying transistor T2, the grid electrode is connected with a source electrode and is connected with the output end of the VDD signal source, a drain electrode is connected with the source electrode of the driver transistor T1; alternatively, the driver module further comprises a n-shaped decaying transistor T2, the grid electrode is connected with the drain electrode and is connected with the output end of the VDD signal source, and the source electrode is connected with that of the driver transistor T1.
Owner:BOE TECH GRP CO LTD
Manufacturing method of array substrate, array substrate and display device
ActiveCN109994510ALight evenlyWeaken the effect of hydrogen replenishmentSolid-state devicesSemiconductor devicesCapacitanceHydrogen
Embodiments of the invention provide a manufacturing method of an array substrate, the array substrate and a display device. The manufacturing method is characterized by firstly opening a hole on a first thin film transistor, then simultaneously performing hydrogen supplement processing for the first thin film transistor and a second thin film transistor, and opening a hole on the second thin filmtransistor, so that the first thin film transistor and the second thin film transistor can be repaired and compensated to different degrees through the hydrogen supplement processing respectively, wherein, because the hole is opened on the first thin film transistor firstly, the hydrogen supplementing effect of the first thin film transistor is weakened, in this way, the gradient of a current-voltage curve of the first thin film transistor can be properly reduced, a current difference caused by a threshold voltage difference is reduced, and electron mobility of the second thin film transistoris increased as much as possible, the charging electric quantity of a capacitor within the rated time is increased, the current difference between circuits is reduced, therefore, the display device can emit light uniformly, the occurrence probability of Mura is reduced, and the Mura effect is reduced.
Owner:BOE TECH GRP CO LTD +1
Method, device and system for flow equalization
ActiveCN104659899AReduce current differenceSolve the defects of large volume and high costEmergency power supply arrangementsGreek letter alphaElectronics
The embodiment of the invention discloses a method, device and system for flow equalization, and relates to the field of electronics. Through the use of the method, device and system, flow equalization of which the volume, the cost and the extra loss are not increased is realized. The technical scheme adopted by the method comprises the following steps: through sampling, obtaining a present current value of a passage of each switching device in N switching devices which are connected in parallel; regulating a conduction angle of the switching device of which the present current value is greater than or equal to a first preset threshold value to a theta-alpha degree, wherein theta is the present conduction angle of the switching device of which the present current value is greater than or equal to the first preset threshold value, and alpha is greater than 0. The method, device and system disclosed by the invention are used for the flow equalization of the switching devices.
Owner:HUAWEI DIGITAL POWER TECH CO LTD +1
Reference current generating circuit and generating method for EEPROM memory
ActiveCN109189136AGuaranteed anti-interference abilityGuaranteed accuracyElectric variable regulationPower flowReference current
The invention relates to a reference current generating circuit for an EEPROM memory, comprising a storage unit and a mirror unit. The storage unit is configured to output a standard current I0_cell to the mirror unit, the mirror unit is configured to process the standard current I0_cell and output a current m*I0_cell as a reference current Iref, wherein m is 0 (m (1; and a reference current generating method is disclosed). The reference current Iref is associated with the standard current I0_cell to ensure that the reference current Iref always satisfies a formula (1.3), and the current difference brought by a process, the temperature and the like can be reduced as much as possible; a reference CELL is shared in the memory as a reference current source, and the required area is small compared to the conventional current detecting circuit; the reference current Iref generated by this circuit is a relative current, which varies with changes in voltage, temperature and process angle, andsatisfies the formula (1.3) regardless of any change, so that the anti-interference ability and the accuracy of the subsequent read performance can be ensured.
Owner:四川中微芯成科技有限公司
Driving method and device of display panel
ActiveCN112489591AReduce leakage currentReduce current differenceStatic indicating devicesHemt circuitsElectrical and Electronics engineering
The invention discloses a driving method and device of a display panel. The display panel comprises a pixel circuit. The method comprises the following steps: setting a first initialization voltage according to a display brightness value; and providing a first initialization voltage to the pixel circuit, and initializing a light emitting module in the pixel circuit. The first initialization voltage is set according to the display brightness value, when the display brightness value is relatively low, the first initialization voltage is set to be relatively high, and in the light emitting stageof the pixel circuit, the leakage current of the driving current by providing the initialization voltage to a transistor of a light emitting device can be reduced, so that the leakage current phenomenon in the pixel circuit can be reduced, the current difference, caused by the leakage current characteristic of the transistor, of the pixel circuit for driving the light emitting device to emit lightis reduced, and the brightness uniformity of the display panel is improved.
Owner:KUNSHAN NEW FLAT PANEL DISPLAY TECH CENT
Solar cell module and manufacture method thereof
InactiveCN108735860AImprove light and shadeReduce package lossFinal product manufacturePhotovoltaic energy generationElectricityPower flow
The invention provides a solar cell module and a manufacture method thereof, comprising: cutting a solar cell piece into a plurality of blocks; testing the electric properties of each block to obtainthe efficiency and the maximum working current of each block; grouping the plurality of bocks according to the efficiencies of the blocks and a plurality of predetermined efficiency intervals to obtain a plurality of first block groups; grouping a plurality of blocks in each first block group according to the maximum working currents of the blocks and a plurality of predetermined current intervalsto obtain a plurality of second block groups; and manufacturing a solar cell module by using blocks in the same second block group. The current difference between blocks in the same solar cell modulecan be reduced, thus not only reducing the luminance difference between the blocks and improving the luminance of the module, but also ensuring that the parameters of the electric properties of the blocks are highly matched, so as to reduce the packaging loss of the module and improve the power output of the module.
Owner:ZHEJIANG JINKO SOLAR CO LTD +1
Backlight lamp panel, backlight module and display device
PendingCN113421499AReduce internal resistance pressure dropReduce current differenceStatic indicating devicesIdentification meansControl switchOptics
The embodiment of the invention discloses a backlight lamp panel, a backlight module and a display device. The backlight lamp panel comprises a substrate and a light-emitting unit. The substrate is provided with a control circuit, a first power signal line and a second power signal line. The light-emitting unit comprises a plurality of sub light-emitting units, each sub light-emitting unit comprises a light-emitting device, a first control switch and a voltage dividing element which are connected in series between the first power supply signal line and the second power supply signal line, and the control circuit is electrically connected with the first control switches to control the first control switches to be switched on or switched off. The resistance values of the voltage dividing elements of the sub light-emitting units are gradually reduced in the direction from the input end to the output end of the first power signal line. The resistance values of the voltage dividing elements of the sub light-emitting units are gradually reduced in the direction from the input end to the output end of the first power signal line, so that the difference of currents flowing through all the sub light-emitting units is reduced, and the uniformity of the overall light-emitting brightness of the backlight lamp panel is improved.
Owner:TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
Organic light-emitting device, and method for improving brightness uniformity
PendingCN112289959AImprove brightness uniformityReduce the impactSolid-state devicesSemiconductor/solid-state device manufacturingAuxiliary electrodeElectrical and Electronics engineering
The invention provides an organic light-emitting device, and a method for improving brightness uniformity. The device and the method are used for solving the problem of non-uniform brightness of an OLED light-emitting device in the prior art. The device is composed of a light-emitting region and a non-light-emitting region, the light-emitting region comprises a substrate, a first electrode, a functional layer and a second electrode, and the first electrode, the functional layer and the second electrode are sequentially arranged on the substrate in a layered mode, and the first electrode and the second electrode are used for being connected with a power source. The non-light-emitting region comprises an auxiliary electrode which is arranged between the first electrode and the functional layer and electrically connected with the first electrode, and the path resistance Ra of the auxiliary electrode, the path resistance Rb from the injection point of the auxiliary electrode to the point,farthest away from the injection point, of the light-emitting region and the equivalent resistance ROLED of the electroluminescent device meet a preset relational expression. By designing a longitudinal resistor and combining a transverse path resistor for proportional adjustment, the brightness uniformity of a screen is improved, the process is simple, and industrial production is easy to realize.
Owner:GUAN YEOLIGHT TECH CO LTD
Current equalization circuit and method, and LDO power supply system
ActiveCN111756239AReduce current differenceStable output voltageDc-dc conversionElectric variable regulationHemt circuitsBranch current
The invention discloses a current equalization circuit and method, and an LDO power supply system. The current equalization circuit comprises N compensation modules, wherein the N compensation modulesand the N LDOs are in one-to-one correspondence. Each compensation module comprises a branch current sampling module, an average current sampling module and a feedback module, wherein the branch current sampling module is used for sampling current provided for a current consumption point by the LDO corresponding to the branch current sampling module so as to obtain branch sampled current; the average current sampling module is used for sampling average current provided for the current consumption point by each LDO to obtain average sampled current; and the feedback module is used for comparing the branch sampled current with the average sampled current to obtain an error current, and feeding back the error current to the corresponding LDO. According to the current equalization circuit andmethod and the LDO power supply system provided by the invention, current equalization in power supply to the same network by multiple LDOs can be realized.
Owner:XI AN UNIIC SEMICON CO LTD
Pixel drive circuit
InactiveCN110706650AImprove display uniformityReduce voltage lossStatic indicating devicesCapacitanceDriver circuit
A pixel drive circuit includes a driving thin film transistor; the first end of a voltage stabilizing capacitor is connected to the control end of the driving thin film transistor, and the second endof the voltage stabilizing capacitor is connected to the first end of the driving thin film transistor; the first end of a first capacitor is connected to the control end of the driving thin film transistor, and the second end of the first capacitor is connected to the second end of the driving thin film transistor; and the first end of a light-emitting device is connected to the second end of thedriving thin film transistor, and the second end of the light-emitting device is grounded. According to the pixel drive circuit, the voltage stabilizing capacitor is additionally arranged on the gridelectrode of the driving thin film transistor, so that the voltage loss caused by a punch-through effect can be reduced. The display uniformity of a panel is improved.
Owner:SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
Wafer electroplating device and electroplating method
InactiveCN112831821AReduce grinding difficultyReduce current differenceSemiconductor devicesElectrodesPhysicsLiquid crystal
The invention provides a wafer electroplating device and electroplating method. The wafer electroplating device comprises an electroplating bath, an electroplating anode, a virtual anode and a power source. Electroplating liquid is arranged in the electroplating bath, a seed layer is arranged on the surface of a wafer, the electroplating anode comprises a first surface facing the seed layer, the seed layer comprises a second surface facing the electroplating anode, and at least part of the first surface and at least part of the second surface are immersed in the electroplating liquid. The power source comprises a positive electrode and a negative electrode, the electroplating anode is connected to the positive electrode of the power source, the seed layer is connected to the negative electrode of the power source, the virtual anode is immersed in the electroplating liquid and located between the electroplating anode and the seed layer, the virtual anode can enable ions in the electroplating liquid to pass through, and the resistance of the virtual anode is larger than the sum of the resistance of the electroplating liquid and the resistance of the seed layer. The wafer electroplating device and electroplating method solve the technical problem that the thickness of an electroplated layer formed on the wafer through electroplating is not uniform.
Owner:YANGTZE MEMORY TECH CO LTD
A half-bridge igbt module with multiple chips connected in parallel
ActiveCN108074917BReduce current differenceVoltage balanceSemiconductor/solid-state device detailsSolid-state devicesFlyback diodeEngineering
Owner:南京银茂微电子制造有限公司
Display driving circuit and driving method of display driving circuit
ActiveCN113112962AImprove display uniformityReduce current differenceStatic indicating devicesEnergy efficient computingDriver circuitControl signal
The invention provides a display driving circuit and a driving method of the display driving circuit. A source electrode driving module of the display driving circuit inputs a first data signal to a first input end of a selection module and inputs a control signal to a control end of the selection module, and a reverse bias circuit inputs a second data signal to a second input end of the selection module; in the display time of the display frame period, the selection module outputs the first data signal to the display module, and the display module emits light normally, and in the non-display time of the display frame period, in the non-display frame period or in a shutdown state, the selection module outputs the second data signal to the display module, and a pixel circuit of the display module is in a reverse bias state; the driving transistors are quenched and tempered, the state of electrons is recovered, the aging of the driving transistors is delayed, the threshold voltage Vth characteristic of the driving transistors is compensated, the current difference between the driving transistors is reduced, and the display uniformity of the display module is improved.
Owner:SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
Adaptive power adjusting device for FDS testing
ActiveCN110837031AReduce current differenceVoltage peak adjustableTesting dielectric strengthElectrical measurement instrument detailsVoltage amplitudeControl signal
The invention relates to an adaptive power adjusting device for FDS testing. After a control module obtains a turning frequency calculated according to an approximate equivalent capacitance value of atested sample measured under a power frequency, a control signal is outputted to a power module according to the turning frequency; and the power module is controlled to enable the amplitude of the output voltage to be a first type of voltage amplitude when the frequency of the output voltage is smaller than the turning frequency and to enable the amplitude of the output voltage to be a second type of voltage amplitude when the frequency of the output voltage is larger than or equal to the turning frequency, wherein the first type of voltage amplitude is larger than the second type of voltageamplitude. On the basis of combination of the turning frequency, the frequency and the amplitude of the output voltage of the power module are adjusted; the voltage peak value can be adjusted duringthe frequency sweeping process of the tested sample testing; the current difference between the low frequency band and the high frequency band is reduced; and the measurement accuracy is improved. Meanwhile, the power output of the whole frequency sweeping stage can be controlled by adjusting the output voltage, so that waveform distortion caused by exceeding of the rated output power of the device can be avoided.
Owner:GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD
Organic light emitting diode pixel circuit and display device
ActiveCN103971643AReduce unevennessReduce current differenceStatic indicating devicesDisplay deviceData signal
Owner:WUHAN TIANMA MICRO ELECTRONICS CO LTD +2
Anti-electric shock intelligent electric control cabinet and using method thereof
InactiveCN111327115AEasy to monitor in real timeAvoid enteringThermometer detailsCurrent/voltage measurementTransformerControl engineering
The invention discloses an anti-electric shock intelligent electric control cabinet and a use method thereof. The anti-electric shock intelligent electric control cabinet comprises a cabinet body, a dry-type transformer is arranged in an inner cavity of the cabinet body, U-shaped plates are fixedly connected to the two sides of the bottom of the dry-type transformer, the bottoms of the U-shaped plates make contact with the bottom of the inner cavity of the cabinet body, a support is transversely and fixedly connected to the inner cavity of the cabinet body, and the support is located above thedry-type transformer. The invention has the advantages of remote monitoring and control, and shock resistance and intelligent heat dissipation, and is advantageous in that data is synchronized to begiven to operators, and real time monitoring by the operators is facilitated; and the invention solves the problems that the existing power distribution cabinet has simple structure, does not have thefunctions of remote monitoring and control, cannot timely inform operators after the circuit of the electrical component fails, cannot effectively synchronize each data parameter to the remote operators, is not beneficial to the operators to quickly take remedial operation, does not have the functions of anti-vibration and intelligent heat dissipation, and reduces the applicability of the electrical control cabinet.
Owner:中交三公局第一工程有限公司
Nonvolatile memory circuit, and storage method and reading method thereof
The invention discloses a nonvolatile memory circuit and a storage method and a reading method thereof; the nonvolatile memory circuit comprises: a spin-orbit momentum magnetic memory, wherein the spin-orbit momentum magnetic memory comprises a spin Hall effect layer, a first magnetic tunnel junction and a second magnetic tunnel junction, the spin Hall effect layer is provided with a first surface and a second surface which are opposite to each other, the first magnetic tunnel junction is positioned on the first surface, the second magnetic tunnel junction is positioned on the second surface, and the spin Hall effect layer further comprises a first end and a second end; a first bit line; a second bit line; a third bit line; a fourth bit line; and a switch assembly that couples the first end with the first bit line, couples the second end with the second bit line, and couples the first magnetic tunnel junction with the third bit line, and couples the second magnetic tunnel junction with the fourth bit line. Therefore, the cost of the memory is reduced, and the performance of the memory is improved.
Owner:SEMICON MFG INT (SHANGHAI) CORP +1
Power MOSFET packaging thermal resistance comparison device
ActiveCN105572559AReduce current differencePractical to produce and useIndividual semiconductor device testingControl functionSwitched-mode power supply
The invention provides a power MOSFET packaging thermal resistance comparison device, which comprises an adjustable DC power source, a switch power supply, a constant current control panel, a double-channel point temperature meter, a power MOSFET and a heat radiator. The power MOSFET is arranged on the heat radiator; the constant current control panel accurately controls different power MOSFETs to work in an amplification area and ensures same power consumption; and the double-channel point temperature meter measures the temperature on the surface of the power MOSFET and the temperature of the heat radiator at the lower portion of the power MOSFET. Through the control function of the constant current control panel, the current passing through the power MOSFETs is allowed to be controlled accurately, thereby greatly reducing the current difference since different power MOSFETs have start voltage difference; and meanwhile, under the condition of same power consumption, the temperature on the surface of the power MOSFET and the temperature of the heat radiator at the lower portion of the power MOSFET are measured by the double-channel point temperature meter, and thus packaging thermal resistance of the different power MOSFETs can be compared accurately and quickly.
Owner:华羿微电子股份有限公司
Driving circuit for backlight system of light-emitting diode
InactiveCN101848575BReduce complexityLow costStatic indicating devicesElectric light circuit arrangementElectrical resistance and conductancePower flow
The invention discloses a driving circuit for a backlight system of a light-emitting diode, which comprises input voltage, input resistance, an operational amplifier, a first transistor and a current arithmetic unit, wherein the positive input end of the operational amplifier is electrically connected with the input voltage through the input resistance, and the output end of the operational amplifier is electrically connected with the negative input end of the operational amplifier through a feedback network; the first transistor is used for acquiring reference current according to the input voltage and the input resistance to control the output voltage of the operational amplifier; and the current arithmetic unit is used for generating a plurality of operating currents which are proportional to the reference current according to the output voltage of the operational amplifier to drive a plurality of light-emitting diode series groups.
Owner:华映视讯(吴江)有限公司 +1
Method for manufacturing an array substrate, array substrate and display device
ActiveCN109994510BLight evenlyWeaken the effect of hydrogen replenishmentSolid-state devicesSemiconductor devicesCapacitanceDisplay device
The method for fabricating an array substrate, the array substrate, and the display device provided by the embodiments of the present invention firstly open holes for the first thin film transistor, then perform hydrogen replenishment treatment on the first thin film transistor and the second thin film transistor, and then perform the hydrogen replenishment treatment on the second thin film transistor. The thin film transistor is opened, and the first thin film transistor and the second thin film transistor can be repaired and compensated to different degrees through hydrogen replenishment treatment. Among them, since the first thin film transistor is opened first, the compensation of the first thin film transistor is weakened. The hydrogen effect can not only appropriately reduce the slope of the current-voltage curve of the first thin film transistor, reduce the current difference caused by the threshold voltage difference, but also increase the electron mobility of the second thin film transistor as much as possible, and increase the charging capacity of the capacitor within the rated time , reduce the current difference between the circuits, so that the display device can emit light evenly, reduce the chance of mura occurrence, and alleviate the mura effect.
Owner:BOE TECH GRP CO LTD +1
Display panel driving method and device
ActiveCN112489591BThe first initialization voltage constant increasesThe first initialization voltage increasesStatic indicating devicesDriving currentHemt circuits
The invention discloses a driving method and device of a display panel. The display panel includes a pixel circuit, and the method includes: setting a first initialization voltage according to a display brightness value; providing the first initialization voltage to the pixel circuit to initialize a light-emitting module in the pixel circuit. By setting the first initialization voltage according to the display luminance value, when the display luminance value is relatively low, the first initialization voltage is set to be relatively large, and the driving current can be reduced by providing the initialization voltage to the transistor of the light-emitting device during the light-emitting phase of the pixel circuit The leakage current of the pixel circuit can be reduced, thereby reducing the leakage current phenomenon in the pixel circuit, reducing the current difference of the pixel circuit driving the light-emitting device to emit light caused by the leakage current characteristic of the transistor, and improving the brightness uniformity of the display panel.
Owner:KUNSHAN NEW FLAT PANEL DISPLAY TECH CENT
Ethernet power supply equipment interface circuit and Ethernet power supply equipment
ActiveCN111901130AGood power managementExtend your lifeData switching current supplyEmergency protective arrangements for limiting excess voltage/currentHemt circuitsInterface circuits
An embodiment of the invention provides an Ethernet power supply equipment interface circuit and Ethernet power supply equipment. The Ethernet power supply equipment interface circuit comprises a first MOS tube, a second MOS tube, a current balance module, a first network transformer and a socket, wherein the current balance module is used for balancing current between a data line pair of the socket and an idle line pair of the socket; the first MOS transistor is connected with a first network transformer, and the first network transformer is connected with two pairs of data line pairs of thesocket; a positive electrode of a center tap of the first network transformer is connected with a POE positive electrode port, and a negative electrode of the center tap of the first network transformer is connected with a first PSE negative electrode port; and the second MOS transistor is connected with the current balance module, and the current balance module is connected with the idle line pair of the socket. According to the Ethernet power supply equipment interface circuit, the balance of the current power of two channels is realized, the situation that the single-path output power of the PSE chip is too large is reduced, the service life of the PSE chip is prolonged, and the heating and damage situations caused by the fact that the current is too large by a single-path line are reduced.
Owner:HANGZHOU HIKVISION DIGITAL TECH
Field emission type display panel
InactiveCN102436998AImprove uniformityReduce current differenceImage/pattern display tubesConductive polymerOptoelectronics
The invention provides a field emission type display panel, which comprises a substrate provided with at least a display region and a non-display region. A first conductive layer disposed on the display region comprises a first electrode line and a first electrode electrically connected with the first electrode line. A resistance material layer is positioned on the first conductive layer in the display region. An insulating layer covering the resistance material layer in the display region is provided with a first opening and a second opening. Part of the resistance material layer above the first electrode is exposed through the first opening. Part of the resistance material layer above the first electrode line is exposed through the second opening. An electronic emission element is arranged on the resistance material layer exposed through the first opening. A second conductive layer disposed on the insulating layer is positioned in the second opening. The second conductive layer comprises a second electrode line and a second electrode electrically connected with the first electrode line. The second electrode is provided with a third opening so as to expose the electronic emission element. At least a first sub-pixel region and a second sub-pixel region are defined through the second electrode line and the first electrode line.
Owner:AU OPTRONICS CORP
Display panel and display device
PendingCN114373773AImprove display uniformityReduce brightnessStatic indicating devicesSolid-state devicesDisplay deviceComputational physics
The invention relates to the technical field of display, and provides a display panel and a display device. The display panel comprises a second initial signal line and a third initial signal line, the orthographic projection of the second initial signal line on the substrate extends in the first direction, and the orthographic projection of the third initial signal line on the substrate extends in the second direction. The second initial signal line may provide an initialization signal for the first transistor or the seventh transistor. And at least partial sections of the orthographic projection of the third initial signal line on the substrate in the extension direction of the third initial signal line are located on the same side of the orthographic projection of the second conductive part on the substrate in the first direction. And the second initial signal lines form a grid structure, so that the display uniformity of the display panel at a low gray scale can be improved, the current difference between the middle part and the two side parts of the display panel is reduced, and the problem of light and dark alternation under the low gray scale caused by different cross voltages of OLED devices at different positions of the display panel is prevented.
Owner:BOE TECH GRP CO LTD +1
Field emission type display panel
InactiveCN102436998BImprove uniformityReduce current differenceImage/pattern display tubesOptoelectronicsElectron
Owner:AU OPTRONICS CORP
A Pixel Circuit and Thin Film Transistor Backplane Compensating for Threshold Voltage Shift
Owner:BOE TECH GRP CO LTD
Power distribution network electromagnetic optimization dynamic loss reduction method, system and synthetic loss reduction system
InactiveCN101404414BRealization of comprehensive loss reductionSelf loss is smallPolyphase network asymmetry elimination/reductionReactive power adjustment/elimination/compensationElectromagnetic optimizationEngineering
The invention relates to a dynamic loss reduction method for a distribution network and a synthesized loss reduction system of a distribution network. A principle that an electric field and a magnetic field are mutually symbiotic and affected is applied for dynamically realizing electromagnetic balance; the treatment of'peak load shifting'is carried out on the current difference value between three-phase unbalanced currents caused by the dynamic unbalance of the power used by a three-phase load at the secondary side of a distribution transformer so as to lead the current difference value to approach balance, reduce a zero sequence current and the unbalance degree of the three phases, and restrain a harmonic, thereby realizing the self loss (loss on transmission) of the distribution transformer and the line loss (the copper loss of the line) at the first side and the secondary side of the distribution transformer; the synthesized loss reduction system of the distribution network realizes the synthesized loss reduction management of the distribution network, the loss on transmission of the distribution transformer as well as the automatic measuring and accounting on the data of the copper loss of the line at the first side and the secondary side thereof; the system also realizes the remote automatic collection on the power data of the distribution transformer in the same time aswell as the accounting of the line loss of a distribution line, calculates and accounts the line loss of the distribution network, calculates and analyzes the loss reduction as well as analyzes the benefits of energy saving and emission reduction.
Owner:王磊
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