Abstract: An exemplary liquid crystal display includes a data circuit, a memory, and a timing controller. The data circuit includes a polarity generating circuit. The timing controller includes: a data analysis circuit configured for analyzing video signals stored in the memory and generates a corresponding symbol bit to each datum according to the category of each datum; and a symbol bit generating circuit configured for receiving the video data from the data analysis circuit, and keeping or altering the symbol bit of each datum according to the symbol bit of each datum outputted from the data analysis circuit. The data circuit is configured for receiving the video data having symbol bits from the timing controller. The polarity generating circuit is configured for generating a corresponding polarity control signal according to each of the symbol bits of the video data. A related method for driving the liquid crystal display is also provided.

Abstract: An exemplary liquid crystal display includes a data circuit, a memory, and a timing controller. The timing controller includes: a data analysis circuit configured for analyzing video signals stored in the memory and generating a corresponding control signal; and a polarity generating circuit configured for receiving the control signal and outputting a selected one of a first polarity control signal and a second polarity control signal to the data circuit according to the control signal. A related method for driving the liquid crystal display is also provided.

Abstract: An exemplary backlight system includes a power input circuit (21), a detection circuit (27), a control circuit (28), a light emitting diode driving circuit (25), and a light emitting diode array (26). The detection circuit is configured to detect a connection state of the power input circuit with respect to an external power source, and send a corresponding connection states signal to the control circuit. The control circuit is configured to output a control signal to the light emitting diode driving circuit according to the connection state signal. The light emitting diode driving circuit is configured to drive or shut down the light emitting diode array according to the control signal.

Abstract: An exemplary liquid crystal display includes a power supply circuit, a scaler, and an alternating current off control circuit connected between the power supply circuit and the scaler. The alternating current off control circuit is configured to detect an operation state of the power supply circuit, and output a corresponding control signal to the scaler.

Abstract: An exemplary liquid crystal display (300) includes a liquid crystal panel (301) having a plurality of pixel units (340), a data processor (391) having a calculation circuit (393) and an analyzing circuit (394), and a common voltage circuit (305). The calculation circuit is configured to carry out a predetermined calculation between display signals corresponding to a current frame period and display signals corresponding to a previous frame period. The analyzing circuit is configured to provide a compensating signal according to a result of the calculation. The common voltage circuit is configured to adjust a reference voltage signal according to the compensating signal, so as to generate a common voltage signal for the pixel units. A related method for driving a liquid crystal display is also provided.

Abstract: An exemplary display device (200) includes a display module (230), a power supply circuit (240), a detecting circuit (210), and an anti-interfering circuit (250). The detecting circuit detects a predetermined type of radiation from an object near the display module. The anti-interfering circuit determines whether the radiation is from a potential user of the display device via identifying the frequency of the radiation and the time period that the radiation subsists. The power supply circuit provides power to the display module according to the identifying result.

Abstract: An exemplary voltage generating circuit (34) includes a first pulse generator (341) configured to provide a first pulse signal having a fixed duty ratio, a second pulse generator (342) configured to provide a second pulse signal having a variable duty ratio, and a charge pump (343) electrically coupled to the first pulse generator and the second pulse generator. The charge pump outputs a voltage signal according to the first and second pulse signals. When the voltage signal is adjusted, the duty ratio of the second pulse signal is modulated by the second pulse generator, such that the voltage signal outputted by the charge bump is adjusted to have a corresponding value. A liquid crystal display (300) using the voltage generating circuit is also provided in the present invention.

Abstract: An exemplary liquid crystal display device (20) includes a plurality of pixel electrode (26), a common electrode (22), a data driving circuit (33) configured for providing data voltages to each pixel electrode, and a common voltage generating circuit (34) configured for providing a common voltage to the common electrode. The common voltage generating circuit includes a hysteresis comparator circuit (341) and a direct current voltage adjusting circuit (343). The hysteresis comparator circuit is configured for providing an alternating current voltage, and the direct current voltage adjusting circuit is configured for providing a direct current voltage with periodic change. The direct current voltage is configured for superimposing on the alternating current voltage to form a common voltage, and an absolute value of the common voltage changes only slightly within a predetermined range from each frame to the next adjacent frame. A method for driving the liquid crystal display device is also provided.

Abstract: An exemplary liquid crystal display (20) includes a plurality of pixel units (240) each including a pixel electrode (26) and a common electrode (22), a data driving circuit (33) providing a plurality of data voltages to each pixel electrode, a common voltage generating circuit (34) providing a common voltage to each common electrode, and a gamma voltage generating circuit (35) providing gamma voltages to the data driving circuit. The plurality of pixel units are arranged in a matrix. The voltage difference between the data voltage and the common voltage in each pixel unit is a sum of a main voltage and an auxiliary voltage with periodical change. An absolute value of the main voltage is constant. An absolute value of the auxiliary voltage is less than the absolute value of the main voltage. A sum of the auxiliary voltage is zero in a minimum period.

Abstract: A liquid crystal display (1) includes a liquid crystal panel (12) including a number of thin film transistors (123), a timing control circuit (16), a common voltage generating circuit (14) and a gamma circuit (13). The timing control circuit is configured for generating timing signals. The common voltage generating circuit is configured for generating a common voltage. The gamma circuit is configured for generating gray-scale voltages. When the liquid crystal panel is powered on, the common voltage is applied to the liquid crystal panel and reaches a predetermined value before the gray-scale voltages are applied to the liquid crystal panel and comes to predetermined values. And when liquid crystal panel is powered off the common voltage and the gray-scale voltages drops to 0V simultaneously by control of the common voltage generating circuit and the gamma circuit with the thin film transistors switched on.

Abstract: An exemplary LCD (30) includes a liquid crystal panel (31) configured for displaying images and a driving circuit (30). The driving circuit includes a pulse generator configured for providing a pulse signal, and a charge pump (315) configured for provide a common voltage to the liquid crystal panel according to the pulse signal. The common voltage is adjusted by adjusting a duty ratio of the signal pulse, and the precision of adjustment of the common voltage is determined according to a resolution of the pulse signal.

Abstract: A mixture of an electrolyte, a first oligomer and an initiating agent is emulsion polymerized to form a precursor solution with a micro void structure for the gel-type electrolyte. A current available jelly-roll is put into an aluminum foil packet, and the precursor solution is then injected into the packet, which is then sealed and baked so that a highly conductive gel-type electrolyte is disposed inside and outside the jelly-roll. The lithium battery with the gel-type electrolyte is very stiff, reliable, and free from expansion and electrolyte leakage.

Abstract: The present invention provides a method for encapsulating a secondary battery. The method first impregnates a fiber fabric with a resin composition, and then a first heating process is performed to form an adhesive sheet. A jelly-roll of a battery is encapsulated with the adhesive sheet, and then a second heating process is performed to cure the adhesive sheet completely. The first heating process initiates a preliminary reaction to transform the resin composition into a B state to form an adhesive sheet, and the adhesive sheet in the B state is convenient to be further processed or stored. Since the adhesive sheet in the B state possesses a property capable of further curing, the adhesive sheet can be processed into any shape when a further curing process is performed. Therefore, the battery can be easily manufactured with a curved, wound or any arbitrary shape, and the thickness of the battery will not be increased obviously.

Abstract: An electricity storage device and a portable electric-powered tool. The device comprises at least a battery; at least a super capacitor, which has lower internal impedance, when fully charged, than that of the battery and connects the battery in parallel; and an output end for supplying the electricity. The super capacitor is the major power supply for the pulse current output; the battery is used for generating electricity to the super capacitor and is the secondary power supply for the pulse current output. The connection of the battery and the super capacitor does not need any converters or current-limiting resistors.