Abstract: Bias supplies, plasma processing systems, and associated methods are disclosed. One bias supply comprises a first inductor coupled between a first node of a switch and an output node where a first node of a second inductor is coupled to one of the output node or the first node of the switch. A voltage source is coupled between a second node of the switch and a second node of the second inductor. A connection is made between the return node and one of the second node of the switch and the second node of the second inductor. The bias supply also comprises a controller configured to cause an application of the periodic voltage between the output node and the return node by repeatedly closing the switch so current through the switch completes a full cycle.

Abstract: The disclosure provides an electronic device including a pixel circuit and a protection circuit. The pixel circuit includes a driving transistor. The protection circuit includes a first connection transistor, a first switching transistor, and a logic circuit. The first connection transistor is coupled to the driving transistor. The first switching transistor is coupled to the first connection transistor. The logic circuit is coupled to the first switching transistor. The electronic device of the disclosure may provide a pixel protection function through the protection circuit coupled with the pixel circuit.

Abstract: A pixel driving circuit is provided. The pixel driving circuit includes a data write sub-circuit connected to a data line and connected to a second capacitor electrode, the data write sub-circuit configured to write a voltage of a data voltage signal and a threshold voltage of a driving transistor into the second capacitor electrode in a data write phase; a light emitting control sub-circuit connected to the driving transistor, the light emitting control sub-circuit configured to control a voltage supply signal of a voltage supply line to be written into the driving transistor to generate a driving signal in a light emitting phase; and a first reset transistor having a gate electrode connected to a reset control signal line, a source electrode connected to a first reset signal line, and a drain electrode connected to the gate electrode of the driving transistor and the second capacitor electrode.

Abstract: The disclosure provides a lighting device that provides light via one or more non-incandescent lamps that can be moved and arranged while operating. The lighting device includes a non-opaque shroud, or casing, that sits upon a base to create a volume within which the non-incandescent lamps rest and can be moved while still providing light. The non-incandescent lamp can use one or more light-emitting diodes (LEDs). The non-incandescent lamps can provide illumination with minimal heat and low power consumption that contributes to user interaction and can be battery powered. In addition to a non-incandescent lamp, a lighting device having at least one of the non-incandescent lamps is disclosed. Additionally, a lighting system having at least one of the lighting devices and a lighting control application is provided herein.

Abstract: [Object] It is possible to further improve reliability. [Solution] There is provided a display device including: a pixel unit which is configured with a plurality of pixel circuits arranged in a matrix, each of the pixel circuits including a light emitting element and a driving circuit for driving the light emitting element; scanning lines which are interconnections connected to the respective pixel circuits and are provided to extend in a first direction and correspond to respective rows of a plurality of the pixel circuits; and signal lines which are interconnections connected to the respective pixel circuits and are provided to extend in a second direction orthogonal to the first direction and correspond to respective columns of a plurality of the pixel circuits. One of the scanning lines and the signal lines, provided for the one pixel circuit, which is larger in number is positioned in a lower-level interconnection layer.

Abstract: A driving circuit includes a light-emitting element, a first transistor, a second transistor, a third transistor, a fourth transistor, a first capacitor and a regulator circuit. The first transistor, the second transistor and the light-emitting element are coupled in series between a first system voltage terminal and a second system voltage terminal. A first terminal of the first transistor is coupled to the first system voltage terminal. The third transistor is electrically coupled between a gate terminal and a second terminal of the first transistor. The fourth transistor is electrically coupled between the gate terminal of the first transistor and the second system voltage terminal. A first terminal of the first capacitor is electrically coupled to the gate terminal of the first transistor. A regulator circuit is electrically coupled to a second terminal of the first capacitor.

Abstract: A fingerprint detection apparatus comprising: an insulating substrate; a plurality of photoelectric conversion elements arrayed in a detection region of the insulating substrate, each of the photoelectric conversion elements configured to output a signal in accordance with light incident on each of the photoelectric conversion elements; first switching element, each corresponding to each of the photoelectric conversion elements and including a first semiconductor made of oxide semiconductor; a plurality of gate lines coupled with the first switching elements and extending in a first direction; a plurality of signal lines coupled with the first switching elements and extending in a second direction intersecting the first direction; and a gate line drive circuit including a second switching element that includes a second semiconductor made of polycrystalline silicone, the gate line drive circuit being provided in a peripheral region outside the detection region and configured to drive the gate lines.

Abstract: A pixel circuit includes a light-emitting module, a drive module configured to drive the light-emitting module to emit light according to a voltage of a control terminal of the drive module, a storage module configured to store the voltage of the control terminal of the drive module, and a leakage current suppression module electrically connected to the control terminal of the drive module and configured to maintain a potential of the control terminal of the drive module.

Abstract: The present application discloses a display panel and an electronic device. The display panel includes a power access end configured to supply a first power voltage. A driving module is configured to input a second power voltage to a second end of a light-emitting element under a control of a data signal. An equivalent resistance of a driving module of a pixel adjacent to the power access end is greater than an equivalent resistance of a driving module of a pixel away from the power access end.

Abstract: An image sensor array includes pixels arranged in rows and columns, wherein each pixel includes a transistor serially coupled to a photodiode, data lines coupled to a first node of the pixel, bias lines coupled to a second node of the pixel, gate lines coupled to a third node of the pixel, and electrostatic-discharge (ESD) circuits coupled between the gate lines and an ESD bus, wherein the ESD circuits each include first and second metal oxide offset bottom gate transistors in parallel connection.

Abstract: A driver circuit that includes an input side including a power input circuit and an output side including a light emitting diode (LED) output current circuit. The output side of the driver circuit includes an output smoothing capacitor for controlling flicker percentage. A light emitting diode (LED) power supply circuit is present between the input side and the output side for controlling current from the AC power input circuit to the light emitting diode (LED) output current circuit. The LED power supply circuit includes at least two linear current regulators that are connected in parallel. The circuit also includes a controller circuit including a controller for signaling the light emitting diode (LED) power supply to control current to the light emitting diode (LED) output current circuit to provide a lighting characteristic.

Abstract: The present disclosure relates to a pixel driving circuit and a driving method for the same and a display panel. The pixel driving circuit includes a driver unit, a circuit switching unit, and a storage capacitor unit. The driver unit includes a first sub-driver unit and a second sub-driver unit. The circuit switching unit has a first switching unit and a second switching unit. Two terminals of the first switching unit are electrically connected to a first terminal of the light emitting unit and the first sub-driver unit, respectively, two terminals of the second switching unit are electrically connected to the light emitting unit and the second sub-driver unit, respectively, and the circuit switching unit is configured to switch conductive states of the first switching unit and the second switching unit.

Abstract: An organic light emitting diode (OLED) display device includes a display panel including a plurality of OLED pixels arranged in a matrix form to display an image, and the plurality of OLED pixels each includes a switching thin film transistor (TFT) to switch a data voltage pass supplied from a data line in response to a scan signal input through a gate line, a driving TFT turned on in accordance with a magnitude of a data voltage supplied from the switching TFT to control an amount of light emitted from an OLED, and a variable storage capacitor connected in parallel to a gate electrode of the driving TFT and having a capacitance varying in accordance with a magnitude of a voltage applied to the gate electrode of the driving TFT may increase a charging speed and a charging rate of a data voltage of the OLED pixel. As a result, it is possible to improve threshold voltage compensation efficiency and solve a problem such as non-uniform luminance and an afterimage.

Abstract: Provided is a pixel circuit. The pixel circuit comprises a driving transistor and a light-emitting element both coupled in series between a first level end and a second level end, and comprises a second transistor, a third transistor, a fourth transistor, a first capacitor and a second capacitor. The second capacitor is coupled between a control electrode of the driving transistor and a second end of the light-emitting element. A threshold voltage is stored by the first capacitor, so that threshold voltage compensation for the driving transistor and the light-emitting element is implemented, and therefore the non-uniformity of the display of the pixel circuit is compensated. Also provided is a display device, wherein a first control line and a light-emitting control line are both global lines. Also disclosed is a pixel circuit driving method.

Abstract: A display device includes: a substrate: a first electrode and a second electrode disposed on the substrate and facing each other; an emission layer disposed between the first electrode and the second electrode; a common voltage line disposed on the substrate and connected to the second electrode to transmit a common voltage; a thin film encapsulation layer covering the second electrode; auxiliary wiring disposed on the thin film encapsulation layer and connected to the common voltage line; a covering layer covering the auxiliary wiring; and a touch panel disposed on the covering layer. Thus, a voltage drop of the common voltage ELVSS may be minimized, and the luminance uniformity may be improved.

Abstract: A driving and scanning circuit, a display screen and a mobile terminal, comprise driving and scanning units which are distributed in an array, each comprising an AMOLED driving unit for driving an OLED to emit light and a fingerprint scanning unit for forming pixel capacitances, wherein the AMOLED driving unit comprises a first thin film transistor, a second thin film transistor, a third thin film transistor and an OLED, the first thin film transistor is connected with a driving voltage and a first switching voltage, the second thin film transistor and the third thin film transistor are respectively connected with an anode terminal and a cathode terminal, and the OLED is positioned between the cathode terminal and the second thin film transistor; the cathode terminal also comprises a fourth thin film transistor connected with a second driving voltage and a second switching voltage.

Abstract: System controller and method for a power converter. For example, a system controller for a power converter includes a logic controller configured to generate a modulation signal, and a driver configured to receive the modulation signal, generate a drive signal based at least in part on the modulation signal, and output the drive signal to a switch to affect a current flowing through an inductive winding for a power converter. Additionally, the system controller includes a voltage-to-voltage converter configured to receive a first voltage signal, the modulation signal, and a demagnetization signal, and to generate a second voltage signal based at least in part on the first voltage signal, the modulation signal, and the demagnetization signal.

Abstract: A retrofitted light fixture can include a power source that delivers primary power. The retrofitted light fixture can also include at least one light fixture component of an existing light fixture, where the at least one light fixture component, as part of the existing light fixture, was directly coupled to the power source. The retrofitted light fixture can further include an adapter coupled to the power supply and the at least one light source, where the adapter comprises a controller, where the adapter receives the primary power from the power source, where the controller delivers power to the at least one light fixture component based on instructions.

Abstract: Apparatuses for controlling light modules (5) comprise first circuits (1) for detecting first control information transported via first signals and second circuits (2) for converting first control information into second control information. The second control information is transported via second signals. The first and second control information define light settings of the light modules (5) and have different representations. The first control information may be phase-cut information or first data. The second control information may be a parameter of the second signal or second data. The apparatus may further comprise a third circuit (3) for converting power from the first signals into third signals destined for power inputs (51) of the light modules (5). The second signals may be destined for control inputs (52) of the light modules (5). This way, a control of a light module (5) has been separated from powering the light module (5). Many more control options have become possible.

Abstract: A circuit is provided to drive a controlled current from a drive transistor into one electroluminescent element of a pixel array. The circuit is operable to compensate for threshold voltage variation of the drive transistor, thereby providing improved image quality. The circuit is suitable for implementation with p-channel MOSFETs and a conventional geometry having in order: substrate, TFT layer(s), anode, electroluminescent layer(s), cathode. A driving method for this circuit is provided. A display incorporating this circuit is provided. The circuit is operable to provide an inspection function prior to fabrication of the electroluminescent layer(s). An inspection method is provided.

Abstract: A driving circuit and method for a pixel unit, the pixel unit and a display apparatus. The driving circuit for the pixel unit includes a switching unit, a storage capacitor (Cst), a first transistor (T1), a second transistor (T2) and a sixth transistor (T6). The switching unit includes a third transistor (T3), a fourth transistor (T4) and a fifth transistor (T5) for controlling a data signal current (Idata) to charge the storage capacitor (Cst). The driving circuit for the pixel unit expedites the speed for charging the storage capacitor (Cst); further, it has an excellent negative feedback function for the leak current of the storage capacitor (Cst), and ensures the stable operation of the circuit.

Abstract: The present invention provides a driving circuit and method for a pixel unit, a pixel unit and a display apparatus. The driving circuit for a pixel unit comprises: a driving thin-film transistor, a first switching element, a storage capacitor and a driving control unit; said driving control unit is used to control said storage capacitor to be charged/discharged so as to control said driving thin-film transistor to operate in a saturation region, so that the threshold voltage Vth of said driving thin-film transistor is compensated by utilizing the gate-source voltage of said driving thin-film transistor. The present invention can address the problems of ununiformity and attenuation of the brightness of OLED panel.

Abstract: A pixel includes a first transistor, an organic light emitting diode, and a second transistor having a terminal connected between the first transistor and the organic light emitting diode. The first transistor is a driving transistor. The second transistor controls flow of leakage current along a signal path that bypasses the organic light emitting diode.

Abstract: An LED light-adjustment driver module includes a duty cycle detection unit, a current output unit, a comparator and a capacitor unit. The first input end of comparator is connected to capacitor unit, and the second input end of comparator inputs a default threshold voltage. The duty cycle detection unit is for receiving externally inputted PWM signal and detecting the duty cycle of the PWM signal; when the duty cycle detection unit detects the duty cycle is less than a default threshold, the current output unit increases the output current or the capacitor unit reduces the capacitance provided to reduce the time for the voltage of the capacitor unit to reach the threshold voltage. Hence, the charging speed of the capacitor unit can be increased.

Abstract: A drive circuit for a light emitting element small in the number of components which can correct a threshold voltage of a drive transistor is provided. The drive circuit includes a line that is connected between two reference voltages, a light emitting element on the line, a drive transistor on the line, a first capacitor connected between a gate and a drain of the drive transistor, a second capacitor connected between the gate and a source of the drive transistor, a first switching element connected to the gate of the drive transistor and turning on during a signal writing period to supply a signal voltage to the gate of the drive transistor, and a second switching element disposed on the line and having one side connected to the source of the drive transistor, and the second capacitor.

Abstract: An organic light emitting display includes a plurality of pixels. Each pixel includes an organic light emitting diode, a first driver, and a second driver. The first driver supplies a predetermined current to the OLED based on a current data signal or first data signal. The second driver is coupled between the first driver and OLED, and controls the coupling between the first driver and OLED based on a second data signal.

Abstract: A compensation unit includes a current source unit, a current sink unit, a sensing resistor, a comparator, and a memory. The current source unit is configured to supply a first reference current to a first node. The current sink unit is configured to sink a second reference current from the first node. The sensing resistor is coupled between the first node and a second node. The comparator is configured to: compare a voltage at the first node with a voltage at the second node, and output a comparison result signal based on the comparison. The memory unit is configured to: store compensation data related to operational disparity of at least one organic light emitting diode and/or of at least one driving transistor, output the compensation data, and modify the compensation data based on the comparison result signal.

Abstract: A pixel for a display panel includes an organic light emitting diode and two driving transistors. The first driving transistor supplies current from a first power source to the organic light emitting diode based on a voltage applied to a first node. The second driving transistor coupled between an electrode of the first driving transistor and the organic light emitting diode. The second driving transistor is turned on or turned off corresponding to a data signal supplied from a data line. A third transistor, coupled between a gate electrode of the second driving transistor and the data line, is turned on when a scan signal is supplied to a scan line. A compensation circuit is coupled to the first node to compensate for a voltage corresponding to a threshold voltage of the first driving transistor.

Abstract: A pixel circuit including a light emitting element outputting a gray scale based on a current supplied thereto, a first transistor configured to control an amount of current supplied to the light emitting element based on a gray scale data voltage supplied to a gate electrode of the first transistor, a second transistor connected between the gate electrode of the first transistor and an initialization voltage, a third transistor connected between the gate electrode of the first transistor and a first terminal of the first transistor; a fourth transistor connected between the first terminal of the first transistor and the light emitting element, and a fifth transistor connected between a second terminal of the first transistor and a data line. The data line is selectively supplied with the gray scale data voltage and a power supply voltage for light emitting of the light emitting element to the fifth transistor.

Abstract: The present disclosure relates to the field of organic light-emitting display, and provides a pixel circuit, a driving method thereof, an organic light-emitting display panel and a display apparatus, comprising a driving transistor, a first storage capacitor, a collecting unit, a writing unit and a light-emitting unit; wherein, the collecting unit is used. for collecting the threshold voltage of the driving transistor and storing the threshold voltage into the first storage capacitor, under the control of the first scan signal; the writing unit is used for storing the data voltage inputted from the input terminal for the data voltage under the control of the second scan signal; and the light-emitting unit is used for emitting lights, driven by the data voltage and a voltage inputted from the input terminal for the controllable low voltage, under the control of the light-emitting control signal.

Abstract: A display device includes a normal pixel including a first driving transistor and a first compensation transistor connected to a gate and drain of the first driving transistor, and a compensation pixel including a second driving transistor and a second compensation transistor connected to a gate and drain of the second driving transistor. The second compensation transistor is open.

Abstract: Disclosed herein is a light-emitting panel including: an organic electroluminescence element adapted to emit electroluminescence light toward a transparent substrate; a pixel circuit formed on the transparent substrate and adapted to drive the organic electroluminescence element; a color filter formed not only between the transparent substrate and organic electroluminescence element but also immediately on or above the pixel circuit; and a conductive layer formed between the pixel circuit and color filter, the conductive layer being more conductive than the color filter.

Abstract: This disclosure describes a non-dissipative snubber circuit configured to boost a voltage applied to a load after the load's impedance rises rapidly. The voltage boost can thereby cause more rapid current ramping after a decrease in power delivery to the load which results from the load impedance rise. In particular, the snubber can comprise a combination of a unidirectional switch, a voltage multiplier, and a current limiter. In some cases, these components can be a diode, voltage doubler, and an inductor, respectively.

Abstract: The present invention provides a driving circuit and method for a pixel unit, a pixel unit and a display apparatus. The driving circuit for a pixel unit comprises: a driving thin-film transistor, a first switching element, a storage capacitor and a driving control unit; said driving control unit is used to control said storage capacitor to be charged/discharged so as to control said driving thin-film transistor to operate in a saturation region, so that the threshold voltage Vth of said driving thin-film transistor is compensated by utilizing the gate-source voltage of said driving thin-film transistor. The present invention can address the problems of ununiformity and attenuation of the brightness of OLED panel.

Abstract: Provided are a pixel circuit, a driving method thereof, and a display device, which relate to the field of the display technology and can effectively compensate variation in currents due to ununiformity and drift of threshold voltages of driving Thin Film Transistors as well as ununiformity of OLEDs. The pixel circuit comprises: a light-emitting element; a driving TFT; a first TFT having a drain connected to a gate of the driving TFT; a second TFT having a drain connected to a source of the driving TFT; a third TFT having a source connected to a drain of the driving TFT, and a drain connected to the light-emitting element; a fourth TFT having a source connected to the gate of the driving TFT, and a drain connected to the drain of the driving TFT; a fifth TFT having a drain connected to the source of the driving TFT; and a capacitor.

Abstract: An ignition system includes an ignition plug, a discharge power supply for applying a high voltage to the gap of the ignition plug, a high-frequency power supply for supplying a high-frequency current to the gap, a matching unit provided between the ignition plug and the high-frequency power supply, and a mixer through which currents output from the two power supplies flow. An oscillation frequency fs (Hz) which maximizes the current flowing between the matching unit and the mixer when spark discharge is generated and an oscillation frequency fo (Hz) which maximizes the current flowing between the matching unit and the mixer when spark discharge is not generated satisfy a relation fs/fo?0.85. Thus, a current whose oscillation frequency is equal to the oscillation frequency fs flows between the matching unit and the mixer when spark discharge is not generated.

Abstract: To prevent an influence of normally-on characteristics of the transistor which a clock signal is input to a terminal of, a wiring to which a first low power supply potential is appled and a wiring to which a second low power supply potential lower than the first low power supply potential is applied are electrically connected to a gate electrode of the transistor. A semiconductor device including the transistor can operate stably.

Abstract: There is provided an organic light emitting display capable of displaying an image with uniform brightness while securing a high aperture ratio. The organic light emitting display includes a plurality of first subpixels and a plurality of second subpixels alternately arranged in a single column line and a third subpixel arranged in another column line adjacent to the first subpixels and the second subpixels. First subpixels positioned in the single column line may be alternately electrically coupled to different data lines.

Abstract: The present invention provides an LED light-adjustment driver module, which includes a duty cycle detection unit, a current output unit, a comparator and a capacitor unit. The first input end of comparator is connected to capacitor unit, and the second input end of comparator inputs a default threshold voltage. The duty cycle detection unit is for receiving externally inputted PWM signal and detecting the duty cycle of the PWM signal; when the duty cycle detection unit detects the duty cycle is less than a default threshold, the current output unit increases the output current or the capacitor unit reduces the capacitance provided to reduce the time for the voltage of the capacitor unit to reach the threshold voltage. The present invention can increase the charging speed of the capacitor unit.

Abstract: This disclosure describes a non-dissipative snubber circuit configured to boost a voltage applied to a load after the load's impedance rises rapidly. The voltage boost can thereby cause more rapid current ramping after a decrease in power delivery to the load which results from the load impedance rise. In particular, the snubber can comprise a combination of a unidirectional switch, a voltage multiplier, and a current limiter. In some cases, these components can be a diode, voltage doubler, and an inductor, respectively.

Abstract: A driving circuit and method for a pixel unit, the pixel unit and a display apparatus. The driving circuit for the pixel unit includes a switching unit, a storage capacitor (Cst), a first transistor (T1), a second transistor (T2) and a sixth transistor (T6). The switching unit includes a third transistor (T3), a fourth transistor (T4) and a fifth transistor (T5) for controlling a data signal current (Idata) to charge the storage capacitor (Cst). The driving circuit for the pixel unit expedites the speed for charging the storage capacitor (Cst); further, it has an excellent negative feedback function for the leak current of the storage capacitor (Cst), and ensures the stable operation of the circuit.

Abstract: A light-source control device includes a light source including a first light emitter for emitting light and a second light emitter for emitting light due to the light emitted by the first light emitter; a constant current unit configured to maintain a current constant that is input via the light source from a power supply; a switching unit configured to switch the current to be input to the constant current unit at a designated duty ratio and cycle; and a control unit configured to control the current applied to the light source so that a rise transition time and a fall transition time of the current applied to the light source are nearly equal to each other.

Abstract: A pixel circuit comprising a plurality of pixel units, wherein each pixel unit comprises a data line (50), a charge gate line (40), a common electrode line (60), a cache module (10), a pixel circuit module (20), and a common gate line (30); the cache module (10) is connected to the charge gate line (40) that supplies a control signal for the cache module (10); an input of the cache module (10) is connected to the data line (50), at the time of supplying a enable control signal by the charge gate line (40), the cache module (10) receives and stores a display signal supplied by the data line (50); the pixel circuit module (20) is connected to the common gate line (30) that supplies a control signal for the pixel circuit module (20); an output of the cache module (10) is connected to an input of the pixel circuit module (20), at the time of supplying an enable control signal by the common gate line (30), the display signal stored in the cache module (10) is written into the pixel circuit module (20).

Abstract: In embodiments of the present disclosure, there are provided an AMOLED driving circuit, an AMOLED driving method and an AMOLED display device. The AMOLED driving circuit includes a light emitting device, a first switching transistor, a voltage regulator, a driving transistor and a capacitor. The driving transistor in the AMOLED driving circuit drives the light emitting device to emit light under the control of the voltage regulator, a driving current provided by the driving transistor is independent of Vth of the driving transistor, so that the driving current flowing through the light emitting device is prevented from being affected by the poor uniformity and drift of Vth, the uniformity in the driving currents flowing through the light emitting devices is enhanced, and thus the uniformity in the brightness of the AMOLED is improved.

Abstract: An object is to enable application of forward/reverse voltage to or forward/reverse current to a display element and to lower power consumption of a driver circuit for driving a pixel. A memory storing the potential of a source signal line input through a switch, a first transistor whose gate is supplied with one output of the memory, a second transistor whose gate is supplied with the other output of the memory, a display element electrically connected to one of a source a drain of a first transistor and one of a source and a drain of a second transistor, a power source line electrically connected to the other of the source and the drain of the first transistor and the other of the source and the drain of the second transistor, and a counter power source electrically connected to the display element are included.

Abstract: A display device having at least a plurality of pixel circuits, connected to signal lines to which data signals in accordance with luminance information are supplied, arranged in a matrix, wherein pixel circuits of odd number columns and even number columns adjacent sandwiching an axis in a column direction parallel to an arrangement direction of the signal lines have a mirror type circuit arrangement symmetric about the axis of the column direction, and there are lines different from the signal lines between signal lines of adjacent pixel circuits.

Abstract: A pixel circuit includes a control switch module, a capacitor, a driving switch, and a light emitting element. The control switch module is enabled and disabled according to a scan signal. A first end of the capacitor can be electrically connected to the control switch module, and a second end of the capacitor can be electrically connected to a voltage level. The capacitor receives and stores a predetermined driving voltage when the control switch module is enabled. Area of the capacitor occupies more than 20% area of the pixel circuit. The driving switch can be electrically connected to the capacitor and a voltage source for controlling a driving current flowing through the driving switch according to the predetermined driving voltage stored in the capacitor. The light emitting element emits light according to the driving current flowing through the driving switch.

Abstract: A hybrid power supply for a high intensity light includes a power supply coupled to the high intensity light, wherein the power supply has a power rating less than a power rating for the high intensity light, and a battery, the battery having a power rating greater than or equal to the power rating for the high intensity light. A switch is coupled between the high intensity light and the battery, such that when the switch is closed the battery is coupled to the high intensity light, and such that when the switch is open the battery is not coupled to the high intensity light.

Abstract: A constant voltage dimmable LED (Light Emitting Diode) driver is disclosed that is compatible with all types of dimmers, including conventional phase cut (TRIAC) dimmers, and behaves like a conventional constant voltage driver which can be connected to any size of LED load that has a matching voltage rating. The driver produces a continuous train of pulses for driving the LED load and obtains an averaged measure of the voltage at the AC input for controlling the duty cycle of the continuous train of pulses. Therefore, when the averaged measure of the voltage at the AC input is reduced by a dimmer, the duty cycle reduces, resulting in a dimmed LED. The driver can be created by adding a few components to a conventional wide input range AC-DC converter without or with very little modifications.

Abstract: An image display device includes: an organic EL element, a first electrostatic capacitor, a driving transistor having a gate connected to a first electrode of the first electrostatic capacitor and a source connected to an anode of the organic EL element, a second electrostatic capacitor having an electrode connected to a second electrode of the first electrostatic capacitor, a negative power source line which determines the potential of a cathode of the organic EL element, and a scanning line driving circuit which controls a first switching transistor, a second switching transistor, and a third switching transistor. In a non-light-emitting period, the scanning line driving circuit sets, during a period from a start of a reset period to an end of the non-light-emitting period, a fixed voltage corresponding to the potential of the negative power source line to the source electrode of the driving transistor.