55results about How to "Stable voltage difference" patented technology

The invention discloses a shift register unit, a driving method thereof, a grid driving circuit, and a display panel. The shift register unit comprises an input module, a first control module, a second control module, a third control module, a first output module, and a second output module. By adopting cooperation among the input module, the first control module, the second control module, the third control module, the first output module, and the second output module, pull-down time of a driving signal output end is reduced, and the driving capability of the shift register unit is improved, and power consumption is reduced.

The invention discloses a shifting register unit, a grid driving circuit and a display device. The shifting register unit comprises an input module, a first control module, a second control module, a third control module, a first output module and a second output module. The above six modules are cooperated with each other, and by adjusting the duration of an effective pulse signal of an input signal end, the duration of a scanning signal output by a driving signal output end can be controlled. The electric potential of the driving signal output end is controlled by a first reference signal end and a second reference signal end, so that the stability of the driving signal output end can be improved. Compared with the prior art that the duration of the scanning signal output by the driving signal output end is controlled through the grid driving circuit of a complex structure, the difficulty of the grid driving circuit is lowered, and the process complexity is lowered, so that the cost is lowered.

The invention discloses a shifting register, a grid-driven circuit and a display device. The shifting register comprises an input module, a first resetting module, a node control module, a first output module, a second output module and a cutting angle control module, wherein by virtue of setting the cutting angle control module and by virtue of mutual cooperation of the six modules, electric potentials of output scanning signals can change gradually, so that scanning signals with cutting angle waveforms can be formed; when the shifting registers of various grades sequentially input the scanning signals with cutting angle waveforms into pixel units in corresponding rows through grid lines of all the rows, the electrical impedance influence of each pixel unit can be reduced, the waveform stability of the scanning signals supplied to the pixel units in each row can be maintained, and thus the splash screen influence of a display panel is improved.

The invention provides a stepwise utilization method of decommissioned batteries. The stepwise utilization method comprises decommissioned battery sorting, decommissioned battery grouping and formingan energy storage system by the decommissioned batteries. The invention further provides a stepwise utilization system of decommissioned batteries, comprising an energy storage system and an energy management unit for controlling the energy storage system to perform charging and discharging, the energy storage system is composed of a plurality of battery clusters with a working voltage of 570 to 832.2V, and each battery cluster comprises a plurality of battery packs connected in parallel; and each battery pack comprises decommissioned batteries connected in series, a PCS and a monitoring unit.According to the stepwise utilization method and system provided by the invention, the consistency problem of the decommissioned batteries is solved through string distributed architecture, which greatly simplifies the process, can not only refine the management of energy storage batteries, but also can ensure the battery consistency to the greatest extent. In addition, the long-term stable operation of the entire system can be ensured, and the safety and the service life of the energy storage system are also objectively improved; and meanwhile, the stepwise utilization cost is reduced by thestepwise utilization method and system provided by the invention, so that the stepwise utilization method and system provided by the invention can be widely used, promoted and applied.

The invention discloses a shift register and driving method, grid driving circuit and display device thereof provided by an embodiment of the invention. The shift register comprises an input module, a reset module, the first control module, the second control module and an output module; through the coordination of the above modules, the scanning signals used for inputting in the corresponding grid lines can be output through the scanning signal output end by using a simple structure, the cascade signals are output from the output end of the cascaded signal, and the cascade signals are used as the signals of the signal input ends of other cascaded shift registers, so that the cascade signal output end for outputting cascade signals is different from the scanning signal output end for outputting scanning signals, so the signal interference of the scanning signals input in the grid lines to the input signal end of the next shift register can be avoided, so that the stability of the shift register can be improved, and then the overall stability of the circuit formed by cascading the plurality of the shift registers can be improved.

The embodiment od of the invention provides a common electrode driving unit, a liquid crystal display panel and a liquid crystal display device, and the common electrode driving unit is used for providing driving voltage for a common electrode in the liquid crystal display panel. The liquid crystal display panel comprises a pixel electrode and a grid driving unit. The invention is characterized in that: the common electrode driving unit comprises an output unit which is connected between the grid driving unit and the common electrode; the output unit is used for correspondingly outputting a third driving voltage and a fourth driving voltage when the grid driving unit outputs a first driving voltage and a second riving voltage, wherein the second driving voltage is larger than the first driving voltage, and the third driving voltage is larger than the fourth driving voltage; and a first voltage difference and a second voltage difference mutually counteract, wherein the first voltage difference is voltage drop generated when the first driving voltage and the second driving voltage mutually convert on the pixel electrode, and the second voltage difference is the voltage drop generated when the third driving voltage and the fourth driving voltage mutually convert on the pixel electrode. By the invention, a flare phenomenon of a liquid crystal display is eliminated.

The invention discloses a shifting register, a gate driving circuit and a display device. The shifting register comprises an input module, a first reset module, a node control module, a cutting angle control module, a first output module and a second output module, wherein through the setting of the cutting angle control module and the mutual cooperation of the six modules, the potential of a scanning signal output by a driving signal output end can be changed to form a scanning signal with a cutting angle waveform; and when the scanning signal with the cutting angle waveform passes through each gate line in sequence to be input into each pixel unit in the corresponding lines, the leaping voltage <Delta>Vp can be decreased, so that the phenomena such as flicker, residual images and the like of a display panel are improved and the display quality of the display panel is improved.

The invention discloses a shifting register, a driving method thereof, a gate drive circuit and a display device. The shifting register comprises an input module, a first control module, a second control module and an output module. With related matching of the four modules, namely, the input module, the first control module, the second control module and the output module, the floating state of a pull-down node can be shortened, and the influence of electric leakage on potential of the pull-down node can be reduced after effective pulse signals of scanning signals are output from a driving signal output end, accordingly, noise of the output scanning signals is reduced, and the output stability of the shifting register is improved.

The invention provides a pixel circuit, a driving method of the pixel circuit, a display panel and a display device. The pixel circuit comprises a data writing module, a compensation control module, a storage module, a luminescence control module, a driver transistor and a luminous device. In the cooperation of the four modules and the driver transistor, a working current used for making the driver transistor drive the luminous device to give out light in the pixel circuit is only correlated with the voltage at the data signal end and the voltage at a reference signal end, and uncorrelated with the threshold voltage of the driver transistor and the voltage of a first power source end so that the working current flowing through the luminous device can be avoided from being affected by the threshold voltage of the driver transistor and IR Drop, accordingly the working current driving the luminous device to give out light keeps stable, and then the uniformity of screen brightness in a display area in the display device can be improved.

The invention discloses a pixel circuit, a driving method thereof, an organic electroluminescence display panel and a display device, comprising a data write-in module, a reset module, a first storing module, a second storing module, a light emission control module, a driving transistor and a light emitting device. For the cooperation of the above five modules, the working current of the light emitting device driven by the driving transistor in the pixel circuit can be made relevant only to the voltage of the data signal terminal and the voltage of the reference signal terminal, irrespective of the threshold voltage of the driving transistor. This can avoid the effect of the threshold voltage of the driving transistor on the working current across the light emitting device, thereby stabilizing the working current for driving the light emitting device and improving the brightness uniformity of the display area in the display panel.

The invention discloses a square wave chamfering circuit and a drive method thereof and a display panel. The circuit comprises an input module, an output module , a chamfering control module, a chamfering module and a capacitor module, square wave signals input into the signal input end can form signals in chamfering wave shapes when output to the signal output end through the coordination of the five modules, thus the output signals are changed from rectangular sudden change to slope slow descent, accordingly the adverse influences brought by electrical level sudden change when the square wave signals are changed from a high electrical level to a low electrical level can be reduced, and in this way, when the square wave chamfering circuit is applied to the display panel, the quality of displayed pictures can be improved.

The present invention discloses a shift register, a gate drive circuit and a display device. The shift register comprises an input module, a first output module, a second output module, an output reset module, a node reset module and a capacitor module. By connecting the control end of the output reset module with a second reference voltage signal end, the rising edge time of a second reference voltage signal sent out by the second reference voltage signal end is shorter, so that the output reset module can reset a second signal output end by a smaller device, and by the usage of the smaller device, the power consumption can be reduced, and a narrow frame is conducive to being realized.

The invention discloses a power device of an electric manned aircraft and the electric manned aircraft. The power device comprises a plurality of motor sets and a plurality of battery packs corresponding to the motor sets. One motor group comprises a plurality of motors, one battery pack comprises a plurality of batteries, and each battery in the battery pack is independently connected with the corresponding motor group so as to supply power to the plurality of motors in the motor group. According to the power device of the electric manned aircraft and the electric manned aircraft, the independent batteries in the battery pack are used for supplying power to the multiple motors in the motor set, the electric quantity of the multiple batteries in the battery pack can be balanced, the voltage difference of the multiple batteries is kept relatively stable, and normal and stable operation of the batteries is ensured.

The invention discloses a pixel circuit, a display panel and a display device. The pixel circuit comprises a luminescence data writing module, a color data writing module, a first storage module, a second storage module and a luminescence module, wherein the five modules are mutually cooperated so that one pixel can display different colors, accordingly it is avoided that colors of a plurality of sub pixels are utilized to synthesize the color of one pixel, and the preparation of the highly fine display panel is benefited.

The present invention discloses a shift register, a gate drive circuit and a display device. The shift register comprises an input module, a clock signal output module, a first output module, a second output and a capacitor module. Through arrangement of the first output module and the second output module, the same shift register can output adjacent two rows of gate drive signals in the gate drive circuit and is controlled to perform switching the sequence of output of the gate drive signals of the Nth row of pixels and gate drive signals of the (N+1)th row of pixels to realize row-by-row output or switching output of the gate circuit so as to realize reduction of the polarity hopping of the input data signals and reduce energy consumption.

The invention discloses a shifting register unit, a drive method of the shifting register unit, a gate drive circuit and a display panel. The shifting register unit comprises an input module, a resetting module, a first control module, a second control module, a first output module and a second output module. Through the match of the six modules, namely, the input module, the resetting module, the first control module, the second control module, the first output module and the second output module, the output of a drive signal output end is realized through the simple structure and few signal lines, thus a preparation process is simplified, and the production cost is reduced.

The invention provides a display device, a pixel driving circuit and a driving method of the display device. According to the invention, a data voltage is supplied to a first electrode of a driving transistor and a storage sub-circuit is charged or discharged. In this way, the voltage difference between a first node and a control electrode of the driving transistor is kept stable when a control electrode of the driving transistor is in a floating connection state. After that, a first voltage signal of a first voltage end is supplied to the control electrode of the driving transistor, and a second voltage signal of a second voltage end or a third voltage signal of a third voltage end is supplied to the first node. A data voltage and a threshold voltage of the driving transistor are writteninto the control electrode of the driving transistor. A second electrode of the driving transistor and a first end of a light-emitting element are turned on. Under the control of a second light-emitting control signal end, the first electrode and the third voltage end of the driving transistor are turned on so as to control a light emitting element to emit the light. In this way, the problem in the prior art that an OLED display picture is abnormal due to the fluctuation of the opening voltage of the transistor is solved in the prior art.

The invention discloses a shift register, a driving method thereof and a gate driving circuit. The shift register comprises an input module, an output module, a resetting module and a resetting control module. Through a first resetting signal end and a second resetting signal end, a control signal is output to the resetting control module for realizing control to voltage of a resetting node, thereby randomly expanding the working time length of the resetting module through controlling by voltage of the resetting node. Therefore the discharging capability of the shift register is effectively improved.