41results about How to "Guaranteed charging time" patented technology

The invention discloses a shift register unit, a grid driving circuit and a driving method thereof, relates to the technical field of display, and solves the problems that great charging of pixels cannot be guaranteed due to long reset time of a grid driving signal. According to the shift register unit, an input module is used for pulling up voltage of a pull-up node under the effect of an input signal in the input phase; an output module is used for outputting the grid driving signal under the effect of a clock signal and further pushing up voltage of the pull-up node in the output phase; the output module is used for pulling down voltage of the output end of the output module to reference voltage under the effect of the clock signal in the reset phase; and a first pull-down control module is used for regulating voltage of the output end of the output module to grid turn-off voltage from reference voltage under the effect of a first pull-down control signal. The shift register unit is used for providing the grid driving signal.

The embodiment of the invention discloses a TFT-LCD (thin film transistor-liquid crystal display) driving circuit and a liquid crystal display device, relating to the technical field of liquid crystal display and used for reducing the number of source drivers and reducing the manufacturing cost of a TFT-LCD under the condition of not affecting the normal charge of a pixel electrode. The TFT-LCD driving circuit comprises the source driver, and each output end of the source driver is connected with at least two data wires; furthermore, transfer switches of which the number corresponds to that of the data wires are arranged between the output ends of the source driver and the data wires, and the transfer switches are used for controlling the data transmission from the source driver to the data wires, wherein a sampling and holding unit is arranged between the transfer switches and the data wires, and the sampling and holding unit is used for saving display data which is provided from thesource driver to the data wires. The scheme provided in the embodiment of the invention is applicable to any thin-film transistor liquid crystal display equipment.

The invention aims to provide a charge control method and electronic equipment. The charge control method is utilized to control charging of a chargeable battery of the electronic equipment and includes the steps of acquiring a charging current determining parameter of the chargeable battery at beginning of the charging; determining charging current for the charging according to the acquired charging current determining parameter; and charging the chargeable battery by the determined charging current during charging so as to enable charging rate of the chargeable battery within a preset range. By the aid of the charge control method, the service life of the chargeable battery can be prolonged.

The invention discloses a display driving method and device and a display device. The display driving method comprises the following steps: acquiring preset charging data at the beginning of frame scanning; precharging display pixels on a preset row signal line according to the acquired preset charging data; and after precharging the display pixels on the preset row signal line, sequentially charging all the display pixels on the row signal line and charging the display pixels on the current row signal line, precharging the display pixels on the row signal line with a preset number of rows atthe current row signal line interval. The technical proposal of the invention ensures that each row of display pixels of the display device can be precharged, and the brightness of the display deviceis uniform.

The embodiment of the invention provides an array substrate, a display device and a driving methodthereof. The array substrate comprises a substrate, a plurality of scanning lines and a plurality of data lines. The plurality of scanning lines and the plurality of data lines are arranged in a crossed manner to form a plurality of pixel units which are arranged in an array manner. At least one row of pixel units corresponds to two scanning lines, and the two scanning lines corresponding to the same row of pixel units synchronously receive scanning signals. According to the array substrate, the two scanning lines are arranged on the same row of pixel units, the number of the electrically connected pixel units on each scanning line is reduced, then the resistance and capacitance delay on the scanning lines is reduced, and the charging time of the grid electrode is guaranteed. Moreover, the two scanning lines corresponding to the pixel units in the same row synchronously receive scanning signals, so that the grid electrodes of the pixel units in the same row are enabled to be synchronously opened, and the normal display of images is realized.

The invention provides a display driving method and a liquid crystal display device. The display driving method comprises the following steps of providing a liquid crystal display panel of an HG2D framework, and setting every two adjacent sub-pixels in the same column of sub-pixels in the liquid crystal display panel to be one display unit; obtaining an original gray-scale value of each display unit; processing the original gray-scale value of each display unit to generate a first display gray-scale value and a second display gray-scale value of each display unit; using the first display gray-scale value and the second display gray-scale value of each display unit for respectively driving two sub-pixels in each display unit to display; driving one of any two adjacent sub-pixels in the liquid crystal display panel by the first display gray-scale value of the display unit corresponding to the sub-pixel. According to the invention, the HG2D architecture is matched with the brightness change processing, so that the charging time of the sub-pixels can be ensured, the large-view-angle color cast can be improved, and the display effect can be improved.

The invention provides a touch detection method and device for a touch display screen. The scanning time for the touch display screen in each frame comprises a display scanning stage and a touch scanning stage. The method includes the steps that a part of the touch display screen is scanned in the touch scanning stages to detect whether a touch signal exists or not; when the touch signal is detected, the frame rate of the touch display screen is reduced, and the whole touch display screen is scanned. In this way, the charging time of a panel is guaranteed while the display function and the touch detecting function are reused.

The embodiment of the invention provides an image display device and an image display method, relating to the field of display devices, and being capable of increasing the charging time and reducing the switching frequency of drive data in the process of driving the display device. The image display method is used for driving the display device, the display device comprises m rows and n lines of combined pixels, each combined pixel comprises a first line of sub-pixels and a second line of sub-pixels (the second line of sub-pixels is arranged below the first line of sub-pixels, and constitutes the combined pixel with the first line of sub-pixels), a first grid lead is connected with the first line of sub-pixels, a second grid lead is connected with the second line of sub-pixels, and while the display device is driven in a 2D (two-dimensional) image mode, the first lines of sub-pixels and the second lines of sub-pixels of each line of combined pixels all receive display data; and when the display device is driven in a 3D (three-dimensional) image mode, the first lines of sub-pixels of each line of combined pixels receive data, and the other liens of sub-pixels of each line of combined pixels do not receive data. The method disclosed by the embodiment of the invention is applied to the driving of image display devices.

The present invention provides a control circuit for a display panel, a driving method of a display panel, and a display device. The control circuit for the display panel is used for controlling the display panel, wherein the display panel includes shielding electrodes, gate lines and a gate driving circuit, wherein corresponding shielding electrodes are arranged above a row of gate lines and are used for blocking the gate lines; the control circuit for the display panel includes a shielding electrode control unit; the shielding electrodes are connected with a common electrode through the shielding electrode control unit; and the shielding electrode control unit is used for controlling the corresponding the shielding electrodes to be in floating states when the gate lines are switched on. With the control circuit of the invention adopted, time required by the gate signals lines to perform charging and discharging can be effectively decreased, and the charging time of pixels can be ensured, electric leakage areas can be reduced, and the high-aperture ratio frame of the pixels can be ensured.

The invention discloses a display panel, a driving method thereof and a display device, which utilize a plurality of gating circuits to provide data signals for data lines and are beneficial for realizing the design of a high screen-to-body ratio and a narrow frame. Moreover, for the same sub-pixel group connected with the same gating circuit, the gating circuit outputs a data signal to the sub-pixel group in sequence when the first scanning line corresponding to the sub-pixel group outputs a scanning signal, and completes the output of the data signal to the sub-pixel group before the secondscanning line corresponding to the sub-pixel group outputs the scanning signal. Namely, for the same sub-pixel group, the sub-pixels are divided into multiple sub-pixels; the time of outputting the scanning signal by the first scanning line is overlapped with the time of outputting the data signal by the gating circuit; therefore, the charging time of the scanning signal can be ensured to be the time for scanning a row of pixels, namely, the scanning signal is ensured to have enough charging time, so that vertical stripes caused by relatively short charging time of the scanning signal can be eliminated while high-frequency display is realized, and the display effect is improved.

The invention provides an array substrate, and a 3D display device and a drive method thereof, belonging to the field of 3D display. The array substrate comprises a substrate, m lines and 2n columns of pixel units formed on the substrate by adopting a matrix mode, data lines corresponding to the m lines of pixel units and gate lines corresponding to the 2n columns of pixel units, wherein each data line is connected with a source electrode of a thin film transistor in the corresponding pixel unit, each gate line is connected with a gate electrode of the thin film transistor in the corresponding pixel unit, the gate lines are used for receiving gate electrode scanning signals according to a preset time period, the gate line corresponding to the (2k-1)th column of pixel units is used for receiving the gate electrode scanning signal within a first time quantum of the preset time period, and the gate line corresponding to the (2k)th column of pixel units is used for receiving the gate electrode scanning signal within a second time quantum of the preset time period. According to the technical scheme, the refreshing frequency of a display panel can be increased, the charging time of pixel electrodes is ensured, and the 3D display is realized.

In the 2H line inversion driving method among the driving methods of the liquid crystal display device, etc., the time point (T2) indicating that the polarity of the data signal (Dm) is reversed to the time when the first gate selection signal (Gn) is turned off The first period (Wn) of the time interval up to the time point (T3) has the same time length as the second period (Wn+1) indicating the on-period of the second gate selection signal (Gn+1), and will indicate from The period from the time (T3) when the first gate selection signal is turned off to the time (T4) when the data signal (Dm) switches to the data output corresponding to the pixel selected by the second gate selection signal The time interval is set to be equal to or less than the time interval from the time (T5) when the second gate selection signal is turned off to the time (T6) when the polarity of the data signal is reversed. Accordingly, a high-resolution liquid crystal display device and a driving method thereof are provided with suppressed horizontal unevenness.

The invention discloses an intelligent calibration output charger. The intelligent calibration output charger comprises a charging control circuit and a charging controller, wherein the input end of the charging control circuit is connected with an AC-DC conversion power supply circuit; the charging controller is connected with the charging control circuit, and is used for carrying out calibrationvoltage sampling and battery charging voltage sampling on charging calibration equipment, and controlling on or off of the charging control circuit according to the calibration voltage sampling valueand the charging voltage sampling value, so that safe charging control is carried out on the battery. The intelligent calibration output charger is intelligently corrected through the correction equipment, the correction value is stored in a memory, and when the battery is charged, the output of the battery charging loop is controlled through the correction value and the battery charging voltagesampling value, so that the output voltage can reach a set value range, the charging time of the battery and the service life of the battery are ensured, and the potential safety hazard of the batteryis avoided.

The invention discloses a pixel circuit, a driving method thereof, a display panel and a display device. A reset module resets a driving module and a light emitting device under the signal control ofa reset signal end; a data writing module writes the signal of the data signal end and the threshold voltage of a driving transistor in the driving module into the grid electrode of the driving transistor under the signal control of a first scanning signal end; a light-emitting control module drives the light-emitting device to emit light under the signal control of a light-emitting control signalend; by arranging a black picture insertion module, after a light-emitting stage in a display frame time period, under the signal control of the second scanning signal end, the driving transistor iscontrolled to be cut off so as to drive the light-emitting device not to emit light, and black pictures can be inserted in the display frame time period; therefore, the purpose of inserting the blackpicture is achieved under the condition that the charging time is ensured, the moving image response time of the display panel is shortened, and the display effect is improved.

The invention provides an OLED, an OLED drive array and a charging method of the OLED drive array. In the drive array, every two pixel lines are provided with three line electrodes and three column electrodes; each pixel or sub-pixel is connected with one line electrode and one column electrode; the three line electrodes are sequentially started according to a set sequence; one or more of the three column electrodes are sequentially started according to a set combination and sequence and used for charging the pixels or sub-pixels. Every two pixel lines are provided with three line electrodes, there is no need to configure a source electrode drive channel for each line electrode, and the number of source electrode drive channels can be reduced; under the condition that the number of the source drive channels is small, the charging time of each pixel or sub-pixel is guaranteed, then the overall brightness of an OLED display screen and the accuracy of color display of the OLED display screen are guaranteed, and color display deviation and the non-ideal effect of the display screen caused by too short a charging time are avoided.

The invention discloses an array substrate, a driving method thereof, a display panel, and a display device, and relates to the field of display technology, in order to solve the problems of short charging time and insufficient charging rate in traditional display products. In the array substrate, the charging circuit located in the 2N+1 row is used to control Turn on the connection between the corresponding column data line and the corresponding pixel electrode; the charging circuit located in the 2Nth row is used for the gate drive signal output from the gate line in the 2Nth row and the second charging control signal output from the second control line. When it is at an active level, the connection between the corresponding column data line and the corresponding pixel electrode is controlled to be turned on; when the second charging control signal is at an active level, the first charging control signal is at an inactive level. The array substrate provided by the invention is used for display.

Disclosed is a shift register unit, a gate driving circuit and a driving method, as well as a display apparatus. The shift register unit has a working cycle including an input phase, an output phase, a reset phase and a maintaining phase. In the reset phase, a clock signal is transmitted to an output terminal to pull a voltage of the output terminal down to a reference voltage, and the pulled-down voltage of the output terminal is subsequently changed from the reference voltage to a gate-off voltage. In the maintaining phase, the voltage of the output terminal is maintained at the gate-off voltage. The reference voltage is smaller than the gate-off voltage.

The invention provides a time sequence controller, a driving control method and a gate driving circuit and method. The time sequence controller comprises a controller body, a data receiver, a comparer, an arithmetic unit and a signal generator; the arithmetic unit is used for calculating the sum of maximum data voltage corresponding to pixels in all rows for each frame of pixel data under the control of the controller body and determining the opening time corresponding to the pixels in each row according to the maximum data voltage corresponding to the pixels in each row and the sum of the maximum data voltage corresponding to the pixels in all the rows; the signal generator is used for generating a corresponding control signal according to the opening time corresponding to the pixels in each row for each frame of pixel data under the control of the controller body, so that a scanning signal generating unit generates a corresponding gate scanning signal according to the control signal. The time sequence controller can increase the charging rate of the pixels, and solve the problem of picture distortion caused by the insufficient charging rate.

The invention provides a charging method of a lithium ion power battery. The method comprises the following steps of (1) carrying out constant-current charging test on the battery with a standard current within a charging limitation voltage range of the battery, obtaining a differential capacity curve according to a charging capacity-voltage curve, and dividing the battery voltage into (n+2) segments according to a peak number n of the curve; and (2) sequentially charging within all the voltage segments, carrying out constant-voltage charging with a finish voltage or entering a next voltage segment for charging or stopping charging after the finish voltage of a current voltage segment is reached, wherein constant-current, constant-voltage or pulse charging can be carried out during charging. The peaks of the differential capacity curve represent different electrochemical reactions of the battery, a peak value represents the minimum internal resistance of the battery during each electrochemical reaction, the charging according to the voltage segments of the battery is carried out according to the peak number of the differential capacity curve, the reaction polarization increase caused by excessive large polarization internal resistance difference of the battery in the charging voltage range due to single-current charging of the battery can be prevented, and the service lifetime of the battery is obviously prolonged on the premise of ensuring the battery capacity.

The invention discloses an overtaking control system and an overtaking control method on the basis of a high beam and low beam integrated xenon headlamp. The control system comprises a combination switch, a ballast, a relay, a vehicle body controller, an electromagnetic valve and a light barrier driven by a motor, wherein one end of the combination switch is grounded and the other end of the combination switch is connected with the input end of the vehicle body controller; a first output port OUT1 of the vehicle body controller is connected with one end of a relay coil J1; a second output port OUT2 of the vehicle body controller is connected with one end of an electromagnetic valve coil J2; the other end of the relay coil J1 and the other end of the electromagnetic valve coil J2 are connected with a +12V power supply; a ballast loop is formed by a relay switch K1, the ballast and the supply power; and an electromagnetic valve loop is formed by an electromagnetic valve switch K2 and the motor. In the control method, the overtaking is controlled by adopting the vehicle body controller; if a vehicle is overtaken when a low beam lamp is not turned on, the charging time of the ballast can be ensured; and if the vehicle is overtaken when the low beam lamp is turned on, the charge-discharge of the ballast can be avoided, so that the service life of the ballast is prolonged.

The invention discloses a ground charging method and system for a lithium battery used for a satellite. According to the ground charging method, the lithium battery is pre-charged by trickle current to enable the voltage of the lithium battery to reach the initial voltage; then the lithium battery is charged by constant current until the upper limit voltage is reached; the process of decreasing the charging current and continuously charging the lithium battery until the upper limit voltage is reached is implemented for multiple times; and the charging process is finished when the current is decreased to the trickle current value and the upper limit voltage of the lithium battery is achieved through continuous charging. The system for implementing the ground charging method comprises a power supply, a charging power supply, a switch and a controller, wherein the controller controls the power supply and the charging power supply to supply power to the lithium battery. By adoption of the method and the system provided by the invention, the lithium battery can be fully charged; multiple times of charging for a certain test project can be avoided; and the risk of shortening the service life of the battery is greatly lowered.

Embodiments of the present invention provide a display panel and a display device, which relate to the field of display technology and are used to reduce the frame width of the display panel and realize the narrow frame design of the display panel. The display panel includes: a main display part, the main display part includes a plurality of main data lines; A secondary data line; non-display part, the non-display part includes a first gating unit and a second gating unit, as well as a first data signal bus and a second data signal bus, wherein a first data signal bus passes through a first A gating unit is connected to M first sub-auxiliary data lines, a second data signal bus is connected to N main data lines through a second gating unit, M and N are integers, and 1≤N<M.

The invention provides a battery charger that can be timed. The charger is provided with a timer. When we charge the battery of an electric vehicle at night, a certain time can be set, and the power will be automatically cut off when the time is up. Then the battery will be charged, which can effectively guarantee the charging time and avoid the trouble caused by overcharging.

The invention discloses a display device which includes a pixel including a pixel driving transistor and a pixel switching transistor, the pixel driving transistor including a first active layer including a first channel area having a first length, a first gate insulating layer on the first active layer, a first gate electrode on the first gate insulating layer, a first source electrode above the first gate electrode and connected to a source area of the first active layer, and a first drain electrode connected to a drain area of the first active layer; wherein the pixel switching transistor comprises: a second active layer comprising a second channel area having a second length that is shorter than the first length, a second gate insulating layer on the second active layer, a second gate electrode on the second gate insulating layer, a second source electrode above the second gate electrode and connected to a source area of the second active layer, and a second drain electrode above the second gate electrode and connected to a drain area of the second active layer.

The invention discloses a driving method of an array substrate, the array substrate and a display panel, the array substrate comprises a plurality of sub-pixels, a plurality of line scanning driving signal lines, a plurality of data driving signal lines and a plurality of common electrode signal lines, the sub-pixels are arranged in an array, each line of sub-pixels is divided into a first pixel group and a second pixel group, and each line of sub-pixels is divided into a plurality of first pixel groups and a plurality of second pixel groups. The sub-pixels in the first pixel group and the sub-pixels in the second pixel group are alternately arranged along the row where the sub-pixels are located, and each data driving signal line is arranged between two columns of sub-pixels in each group and electrically connected with each sub-pixel in the two columns of sub-pixels in each group. And each common electrode signal line is arranged between two adjacent groups of sub-pixels. According to the scheme, the technical problem that the array substrate easily generates bright and dark stripes is solved.