Electric lamp and discharge devices: systems inventions 02/06

20060038497 - Halogen lamps with mains-to-low voltage drivers: A halogen lamp (28) includes a mains base (34); a converter (32) operably connected to the mains base (34), the converter (32) having a lamp socket (38); and a lamp (36) removably disposed in the lamp socket (38); wherein the converter (32) has a power density between 0.75 and 3.75...

20060038498 - Modulation of a background light or any illumination of a mobile phone: A communication device such as a cellular or wireless telephone handset has a light display, such as handset cover light or display backlight, synchronized to audio signals from multiple audio sources such as a microphone or AM/FM receiver. The communication device further includes an audio to illumination conversion apparatus for...

20060038499 - Monitoring apparatus with connector: A monitoring apparatus with a connector is disclosed. The monitoring apparatus is inserted directly into a device, such as bulb socket or power socket, to which electric power has been supplied thereby the monitoring apparatus can be operated automatically through the supplied electric power. The present invention comprises a main...

20060038500 - Driving circuit for display device: A driving circuit for a display device including a plurality of stages connected to each other and sequentially generating output signals, wherein each of the stages comprises a plurality of transistors, wherein each of the transistors comprises: a control electrode; a first insulating layer formed on the control electrode; a...

20060038501 - Display device, driving method of the same, and electronic device: A light emitting element has a property that a luminance changes when an environment temperature changes. In view of this, the invention provides a display device which suppresses the influence of variations of a current value supplied to a light emitting element caused by a temperature change. In particular, luminance...

20060038502 - Minimizing bond wire power losses in integrated circuit full bridge ccfl drivers: A technique is described that reduces parasitic losses in circuits used to drive current through a load. An example of a system according to the technique includes four switches in series with five pins such that one pin is connected to ground. An example of an apparatus according to the...

20060038503 - Electronic high intensity discharge lamp driver: A high intensity discharge (HID) driver for a HID lamp which can be used as a HID ballast is provided. The HID driver at least includes an input processor connected to an input power for suppressing a transient and an in-rush current of the input power, a main driver connected...

20060038504 - Power supply, backlight apparatus, and display device: A power supply includes a light source, a signal converting unit converting an externally supplied AC voltage into a DC voltage, a DC-DC converting unit converting a magnitude of the DC voltage, and a light source protecting unit. The light source protecting unit outputs the DC voltage of a predetermined...

20060038505 - Flash lamp irradiation apparatus: A flash lamp irradiation apparatus comprises at least one flash lamp having a bulb made of translucent material, two or more trigger members disposed along a tube axis of the at least one flash lamp, wherein voltage is simultaneously impressed to the two or more trigger members at lighting in...

20060038506 - Systems and methods to control light-emitting diodes: According to some embodiments, systems and methods may be employed for receiving a power consumption signal. An on-state of a light-emitting diode may be defined. A duty cycle of the light-emitting diode may be determined based at least in part on the power consumption signal. The duty cycle may reduce...

20060038507 - Flat lamp having photocatalytic layer: Provided is a flat panel having a photocatalytic layer. The flat panel may include a bottom substrate; a plurality of barrier ribs on the bottom substrate; a top substrate separated from the bottom substrate by the barrier ribs with a discharge space surrounded by the bottom substrate, the top substrate...

20060038508 - Protection for external electrode fluorescent lamp system: The present invention provides a protection means for a driving circuit which drives a set of external electrode fluorescent lamps (EEFL). The driving circuit with protection function for driving a set of EEFLs consistent with the present invention includes: a transformer connected to the set of EEFLs; a switching network...

20060038513 - Apparatus and method for striking a fluorescent lamp: A lamp inverter with continuous strike voltage facilitates faster striking of a fluorescent lamp, especially at cold temperatures. A frequency sweep generator sweeps the frequency of the lamp inverter to a striking frequency corresponding to a striking lamp voltage and then maintains the striking frequency until the lamp strikes....

20060038511 - Control device: A control device can stably control the quantity of the emitted light of a backlight unit by means of a simple arrangement. The control device comprises an electric current supply section for supplying a predetermined drive current to a group of light emitting elements, a quantity of emitted light detecting...

20060038512 - Electronic equipment equipped with switching power circuit and power supply control method: To provide electronic equipment equipped with a switching power circuit which oscillates intermittently when an apparatus is OFF, where the apparatus is prevented from failing to start up upon power-on due to intermittent oscillation. A microcomputer 110 judges state of intermittent oscillation based on an oscillation on/off signal received from...

20060038509 - Led optical energy detection and feedback system: A system for the throughput detection and feedback of optical energy for making sure of white balance of the LED array in a flat fluorescent light source when the LED array in emitting light by respectively connecting in series a selected LED lamp respectively from RGB LED groups in an...

20060038510 - Power supply, display device, and light source driving apparatus: A power supply is provided, which includes a DC-DC converter being supplied with an external DC input voltage and a first switching control signal and outputting a duty sensing signal of which a magnitude is varied in accordance with the first switching control signal, the duty sensing signal being indicative...

20060033441 - Index tube with tracking structures: The invention is related to a cathode ray tube of the index type (1). Tracking elements (16,18) from a tracking structure flank, preferably above and below each phosphor element (20), being provided on an inner surface of a screen (10). A tracking signal that is derived from response signals from...

20060033442 - High efficiency led driver: An LED driver includes a current sink positioned to control the flow of current between a battery and an LED. The LED driver also includes a charge pump. A control circuit monitors the forward voltage of the LED. A second voltage (VTRIP) is derived to predict the voltage required to...

20060033443 - Led control circuit: An LED control circuit for controlling a plurality of LEDs with different emission colors comprises a counter which increments or decrements a count value at a predetermined clock in response to a count start signal externally supplied, a signal conversion circuit which converts the count value into an analog signal...

20060033444 - Electron emission display (eed) and method of driving the same: An electron emission display (EED) includes an anode and a panel electrode unit comprising a scan electrode that extends in one direction of a lattice type panel and a data electrode that extends across the scan electrode. In the display and a method of driving the same, when power is...

20060033447 - Method and apparatus for a tft array: A testing method for a TFT array substrate arranging pixels in a matrix where a pixel comprises a pixel selection transistor having a gate formed from a first structural material and a source and a drain formed from a second structural material, and a drive transistor having a gate formed...

20060033446 - Organic electroluminescent device and method of fabricating the same: An organic electroluminescent device including a driving element having a driving gate electrode connected to the switching element, the driving gate electrode formed uniformly on the substrate, a driving source electrode having a first driving source electrode along a first direction and a plurality of second driving source electrodes extending...

20060033445 - Organic light emitting diode device and method for driving the same: An organic light emitting diode (OLED) device and a method of driving the OLED device are provided. The OLED device according to an embodiment includes a timing controller and a data drive unit. The timing controller performs a gamma correction of inputted image data for the OLED device, and then...

20060033448 - Plasma display panel (pdp): A Plasma Display Panel (PDP) includes: first and second substrates arranged opposite to each other; address electrodes arranged parallel to each other on the first substrate; barrier ribs arranged in a space between the first and second substrates to divide a plurality of discharge cells; phosphor layers respectively arranged within...

20060033449 - Organic light emitting display: An organic light emitting display that is capable of preventing degradation of picture quality, and a method of manufacturing the organic light emitting display are provided. A unit pixel for the organic light emitting display, includes a first transistor coupled to a data line and having a first voltage threshold,...

20060033450 - Drive circuit for a fluorescent lamp with a diagnosis circuit, and method for diagnosis of a fluorescent lamp: a diagnosis circuit (30) with a resistance element (R1) which is coupled to the resonant tuned circuit (L1, C1), at least one current/voltage converter (31) which is connected to the resistance element (R1) and produces at least one measurement voltage (V31; V311, V312) from a current (I1) flowing through the...

20060033451 - Computer power supply with a display function: A computer power supply with a display function has a rectifying circuit, an EMI filter, a power factor corrector, a switching circuit, a transformer and a secondary coil voltage regulator located between an AC voltage input and a DC voltage output. A linear rectifying circuit as a major technique connects...

20060033452 - Light emitting device using light emitting element and driving method of light emitting element, and lighting apparatus: c

20060033453 - Soft-switching techniques for power inverter legs: This invention relates to new soft-switching techniques for minimizing switching losses and stress in power electronic circuits using inverter legs. By choosing the switching frequency with specific relationships with the resonant frequency of the power electronic circuits, the proposed switching technique enables the power electronic circuits to achieve soft switching...

20060033454 - High speed data interface to the ac power line through a standard light bulb socket: There is disclosed a data receiving device for coupling to an AC power line through a standard light bulb socket. A standard medium lamp base is supported by a frame and connected to a branch circuit of the AC power line. An electrical device having signal terminals and supported by...

20060033455 - Method and apparatus for driving discharge lamps in a floating configuration: A technique is described that facilitates sensing current through a load. A method according to the technique includes mounting a discharge lamp in a floating point configuration, sensing current through the discharge lamp, and controlling current through the discharge lamp to improve power conversion efficiency. A device constructed according to...

20060033456 - Flashing light control apparatus and method thereof: The present invention describes a flashing light apparatus and method for operating the same. A pulse signal generated by a pulse signal generator and the states of the general purpose Input/Output pins of a CPU are used to control the lights to flash....

20060028144 - Traveling wave tube with radioactive isotope charged particle source: The invention discloses systems and methods for mediating electromagnetic interaction with an RF wave in a TWT. Embodiments of the present invention can be employed in high power amplifiers in satellite transponders or radar systems. Embodiments of the invention extract RF power directly from a radioactive isotope (e.g. 238Pu) by...

20060028145 - Method and device for creating a micro plasma jet: A microhollow cathode discharge assembly capable of generating a low temperature, atmospheric pressure plasma micro jet is disclosed. The microhollow assembly has at two electrodes: an anode and a cathode separated by a dielectric. A microhollow gas passage is disposed through the three layers, preferably in a taper such that...

20060028146 - Display device: A display device of the present invention has light-emitting devices making up a plurality of pixels placed in a matrix form. In the display device of the present invention, the light-emitting devices each possesses an emissive layer and a reflective element placed on the rear surface of the emissive layer;...

20060028147 - Discharge lamp lighting apparatus for lighting multiple discharge lamps: A discharge lamp lighting apparatus is provided for lighting a plurality of discharge lamps including one reference lamp and at least one controllable lamp. First variable inductance element and lamp current detecting unit are connected to the reference lamp, second variable inductance and lamp current unit are connected to the...

20060028148 - Lighting apparatus for illumination light source: In a lighting apparatus for an illumination light source (discharge lamp or the like), a fly-back type DC-DC converter circuit comprises a transformer and a switching element. A control circuit is provided for controlling power supplied to the illumination light source, such that operation is controlled in a current boundary...

20060028149 - Methods and apparatus for operating very high pressure short arc discharge lamps: Methods and apparatus are provided for operating very high pressure short arc mercury discharge lamps primarily used for projection applications. The method includes controlling an alternating lamp current supplied to the lamp at a constant RMS value. In some embodiments, the lamp current is adjusted to a new constant RMS...

20060028150 - Circuitry and methodology for driving multiple light emitting devices: High efficiency drive circuitry for a group of parallel-connected light emitting devices, in which each device is driven in series by a respective source of bias current. The maximum voltage drop among the group of biased light emitting devices is determined and in response, a control voltage to drive all...

20060028153 - Discharge lamp lighting device: Disclosed herein is a discharge lamp lighting device which realizes the minute control of the lighting sequence and electric power of a high-pressure discharge lamp and the control of various anti-error protecting functions by mounting a microcomputer. However, since microcomputer processing typically progresses in accordance with the programs previously recorded...

20060028152 - Lighting apparatus for discharge lamp: In a discharge lamp lighting apparatus, in a transient period from the time a discharge lamp is lit in a cold state to the time the discharge lamp reaches a static lighting state, the power applied to the discharge lamp is reduced over time after an initial maximum power that...

20060028151 - Power supply apparatus for high pressure discharge lamp: It is an object of the present invention to provide a high pressure discharge lamp capable of shifting to arc discharge without going out at initial lighting. The object of the invention is achieved by a high discharge lamp in which mercury of 0.15 mg/mm3 is enclosed, and a power...

20060028154 - Liquid crystal display device: The present invention can prolong a lifetime of a liquid crystal display device by suppressing the increase of a leak current attributed to the deflection of a cold cathode fluorescent lamp toward a lower frame side. An insulating member is arranged right below a cold cathode fluorescent lamp and above...

20060028155 - Intelligent drive circuit for a light emitting diode (led) light engine: A controller for controlling a light emitting diode (LED) light engine. The controller includes a temperature sensor configured to sensor temperature at the LED light engine. A current sensor senses a drive current of the LED light engine. A voltage differential sensor senses a voltage differential across LEDs of the...

20060028156 - Lighting system including photonic emission and detection using light-emitting elements: The present invention provides a system and method for generating light using light-emitting elements and detecting the intensity and spectral power distribution of light using the same light-emitting elements as spectrally sensitive photodetectors. The light-emitting elements function in two modes, an ON mode and an OFF mode, wherein in the...

20060022598 - Field emission cathode gating for rf electron guns and planar focusing cathodes: A novel method of gating electron emission from field-emitter cathodes for radio frequency (RF) electrode guns and a novel cathode that provides a focused electron beam without the need for magnetic fields or a curved cathode surface are provided. The phase and strength of a predefined harmonic field, such as...

20060022599 - Lamp control circuit with selectable color signals: The present invention describes a control circuit to be used in a lamp adapter that gives the user the ability to flash the main bulb on and off and, at the same time, flash a colored LED to indicate the purpose of the main bulb flashing. A first brief power...

20060022601 - Light-emitting device and image forming apparatus: A light-emitting device has a plurality of pixel circuits arranged in one direction, each of the plurality of pixel circuits having a light-emitting element that emits light according to the amount of driving current, a driving transistor that supplies the driving current to the light-emitting element, a holding transistor that...

20060022600 - Light-emitting device, image forming apparatus, and display apparatus: A light-emitting device has a plurality of data lines and a plurality of pixel circuits. Each of the plurality of pixel circuits includes a light-emitting element that has a first electrode and a second electrode and that emits light having an intensity depending on the amount of driving current; a...

20060022602 - Method and apparatus for driving plasma display panel: A method and apparatus for driving a plasma display panel is disclosed which can prevent the occurrence of erroneous discharge causing generation of bright defects. In accordance with the method and apparatus, the time interval between a final sustain pulse finally applied in a sustain period and a sustain pulse...

20060022603 - Display device and driving method thereof: A display device includes a left and a right panel sections provided adjacently along a sequence of a plurality of data signal lines, and a plurality of source drivers which are provided along a sequence of the data signal lines and correspond to the panel sections. A controller sends data...

20060022605 - Driving current of organic light emitting display and method of driving the same: A driving circuit of an organic light emitting display includes: a first PMOS transistor turned on in response to a driving signal to transfer a data signal; an OLED (organic light emitting diode) where an amount of light emitted is controlled by a control current; a second PMOS transistor for...

20060022604 - Light source: A light source has a rear glass substrate and a front glass substrate having a plate surface disposed in facing relation to a principal surface of the rear glass substrate. The plate surface of the front glass substrate is coated with a phosphor. A two-dimensional array of electron emitters is...

20060022606 - Arrangement, method and electrode for generating a plasma: The present invention provides an arrangement and method for generating a uniform and stable plasma. The arrangement comprises a discharge space (7) between at least a pair of electrodes (1, 2), which electrodes (1, 2) are arranged for providing an electric field and for generating a plasma in the electric...

20060022607 - Device for driving light emitting diode strings: A device for driving light emitting diode (LED) string, including a DC(direct current)-to-DC converter, a LED string, a switch and a feedback circuit. The DC-to-DC converter includes a first DC-to-DC converter end for outputting a DC voltage according to a feedback signal. The LED string is coupled to the first...

20060022608 - Electronic ballast: An electronic ballast includes an inductor, an output transformer, at least two switching elements, a control circuit, a clamping circuit, and at least two return circuits. The inductor is electrically coupled to a DC power supply. The control circuit is electrically connected to the inductor, the output transformer and the...

20060022609 - Integration circuit, decrement circuit, and semiconductor devices: An ignitor comprising a circuit with a millisecond order time constant and with a minimum circuit size and area, which is capable of self-shutdown without leading to erroneous ignition upon detection of an abnormality. An ignitor 1 capable of self-shutdown upon detection of an abnormality comprises an abnormality detection circuit...

20060022610 - Incremental distributed driver: An incremental distributed driver divides power delivered to multiple lamps into two power delivery stages. The first power delivery stage operates in voltage-mode to provide a partial operating voltage to the lamps. The second power delivery stage operates in current-mode to regulate current levels for each of the lamps and...

20060022611 - Incandescent light power controller with predetermined off-state impedance: An incandescent light bulb life extender circuit is designed to attach to the screw base of a conventional light bulb or incorporated in series with the AC powering the bulb. The circuit employs a bidirectional semiconductor switch that reduces the brightness of the bulb marginally while significantly extending the bulb's...

20060022612 - Square wave drive system: A power conversion circuit improves lamp operating life and lamp efficiency by driving a fluorescent lamp with a square wave signal. The square wave signal is an alternating current signal with relatively fast transition times. The square wave signal advantageously reduces lamp current crest factor for more efficient operation of...

20060022613 - Device for operation of a high pressure discharge lamp: To positionally stabilize the arc spot in a super-high pressure discharge lamp which is filled with at least 0.20 mg/mm3 of mercury and to prevent the formation of so-called flicker, in an operation device having a high pressure discharge lamp and a feed device, the feed device of the high...

20060022614 - Dynamic color mixing led device: A dynamic color mixing LED device that includes a plurality of light emitting diode units. Each light emitting diode unit includes e.g. a first LED of a first color (e.g. red) and a second LED of a second color (e.g. green). A third LED of a third color (e.g. blue...

20060022615 - Organic light emitting device: An organic light emitting device driver for driving an organic light emitting device including a plurality of unit pixels each of which includes an organic light emitting element, the organic light emitting device driver includes: a discharge unit for generating a discharge current during a discharge period to thereby discharge...

20060022616 - Display unit and backlight unit: The screen is exempt from variation in brightness due to uneven temperature distribution. The color liquid crystal display unit has a color display panel of transmissive type and a backlight unit placed behind the color display panel. The backlight unit has a plurality of LEDs connected in series, the drive...

20060022617 - Backlight module for reducing interference: A backlight module for reducing interference is provided. The backlight module includes: a plurality of radiating unit, a plurality of transferring units, and a phase control unit. Each transferring unit is connected to a corresponding radiating unit and can provide a set of driving power source to drive the radiating...