40results about How to "Guaranteed charging time" patented technology

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 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 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.

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 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 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.