TPV ELECTRONICS (FUJIAN) CO., LTD.
|TPV ELECTRONICS (FUJIAN) CO., LTD. Patent applications|
|Patent application number||Title||Published|
|20120256744||DISPLAY WITH FUNCTION OF DARK SHINING AND CURRENCY IDENTIFIER - A display with function of dark shining and currency identifier is provided. The display comprises a micro controller, a button unit and an ultraviolet emitter. The button unit contains an ultraviolet button, and the button unit might output an ultraviolet signal (S||10-11-2012|
|20120181950||DRIVING CIRCUIT FOR SINGLE-STRING LED LAMP - A driving circuit for a single-string light-emitting diode (LED) lamp includes a push-pull converter. The push-pull converter converts an input low DC voltage (such as 12-19V) to a high DC voltage (such as above 200V) to supply power to the single-string LED lamp. The driving circuit controls a lamp current flowing through the single-string LED lamp by means of constant current and adjusts brightness of the single-string LED lamp by means of pulse-width modulation (PWM) dimming. In addition, the single-string LED lamp provides the standardization design for connectors of the driving circuit used to connect to the single-string LED lamp so that the driving circuit has better common-use characteristic. Moreover, the driving circuit does not need a current balance circuit and only needs a cheaper and general-purpose integrated circuit to control the push-pull converter to reduce design cost of the driving circuit.||07-19-2012|
|20120176565||LED LAMP TUBE AND LIQUID CRYSTAL DISPLAY DEVICE - An LED lamp tube includes a plurality of primary light emitting units connected in series. Each of the primary light emitting units includes a plurality of light emitting sub-units connected in parallel. Each of the light emitting sub-units includes at least one light emitting diode. A liquid crystal display device includes the LED lamp tube, a drive circuit, an optical module and a liquid crystal layer.||07-12-2012|
|20120133849||DISPLAY STRUCTURE - A display structure comprising a rear casing, a circuit board, at least one connector and a labeling unit is provided. The rear casing is disposed at behind of the display structure. The circuit board is disposed at interior of the display structure. The connector connects to the circuit board. The labeling unit contains at least one fitting hole penetrating the labeling unit. The connector is corresponded to and located inside the fitting hole. Each fitting hole has a labeling figure disposed nearby and corresponded to the connector. The labeling unit fastens the rear casing by means of its outer edge. Whereby, the display structure may have function of mass production, convenient assembly and adaption for all kind of connectors.||05-31-2012|
|20120044142||DISPLAY HAVING AUTO-OFF FUNCTION BY PERSON INFRARED SENSING - A display having an auto-off function by person infrared sensing includes a display unit, an infrared sensor module, a control unit and a power supply unit. The infrared sensor module senses whether or not a person is within a zone surrounding the display, and generates a sensing trigger signal when sensing no person within the zone. A processor of the control unit stops outputting a control signal when keeping on receiving the sensing trigger signal for a predetermined period of time. The power supply unit supplies power to the control unit or to the display unit and the control unit when receiving the control signal, and enters a DC off mode to stop supplying power when not receiving the control signal. The present invention can automatically turn off the display when sensing no person within the zone for the predetermined period of time so as to achieve power saving.||02-23-2012|
|20110309758||DRIVING CIRCUIT FOR LED LAMP - A driving circuit for an LED lamp including no more than 4 strings each having an input and an output terminals outputs a DC voltage of no more than 70V to the input terminals. The driving circuit includes constant current circuits each coupled between the output terminal of a corresponding string and ground. An on-off control signal controls whether the constant current circuits work to control whether the LED lamp works. A dimming control signal controls a duty cycle of working of to the constant current circuits to control a brightness of the LED lamp. The driving circuit further includes an overvoltage protection circuit and a switch. When a voltage at one input terminal is too high or a short circuit occurs in one string, the overvoltage protection circuit outputs an overvoltage control signal and accordingly the switch forces the on-off control signal to control the constant current circuits not to work.||12-22-2011|
Patent applications by TPV ELECTRONICS (FUJIAN) CO., LTD.