A supply circuit adapted to provide a continuous power supply for a string of serially connected light emitting elements driven with a current source, said supply circuit including: a voltage supply capacitor connected to said string and being adapted to provide a supply voltage for a driving control unit configured to control the light emitting elements of said string; and a capacitor bypass switch connected in parallel with said voltage supply capacitor and being controlled by a local control circuit of said driving control unit, wherein said capacitor bypass switch is switched off by said local control circuit to charge said voltage supply capacitor with a charging current to maintain a continuous power supply without disturbing the current to said string of light emitting elements.

An organic light-emitting diode display device having an organic light-emitting diode having an anode electrode, an organic emission layer, and a cathode electrode is provided. The organic light-emitting diode display device includes a low potential source line configured to supply a low potential source voltage; and at least one auxiliary cathode electrode configured to connect the low potential source line to the cathode electrode. The at least one auxiliary cathode electrode includes a first electrode layer connected to the low potential source line, and a second electrode layer connected to the first electrode layer at a plurality of first positions and connected to the cathode electrode at a plurality of second positions different from the plurality of first positions.

Specifically substituted ladder type compounds of formula (I) wherein A is formula (II) a material for an organic electroluminescence device comprising at least one compound of formula (I), and an organic electroluminescence device which comprises one or more organic thin film layers including an emitting layer between a cathode and an anode, wherein at least one layer of the organic thin film layers comprises at least one compound of formula (I). ##STR00001##

A method and system for realizing synchronous display of LED light strings based on a high-precision clock signal, which relates to the field of LED technology and specifically comprises the steps of: performing synchronization timing for a data processing module based on a high-precision clock signal to generate a standard clock; dividing the standard clock into several time periods, each time period circularly corresponding to a group of program data; and converting the program data into a suitable control signal by means of a data conversion module and outputting it to the LED light strings. The present invention enables LED light strings of different controllers to change synchronously, and the distances between the controllers are not limited, and the synchronization effect can be achieved whenever the power is turned on.

A method and system for realizing synchronous display of LED light strings based on a high-precision clock signal, which relates to the field of LED technology and specifically comprises the steps of: performing synchronization timing for a data processing module based on a high-precision clock signal to generate a standard clock; dividing the standard clock into several time periods, each time period circularly corresponding to a group of program data; and converting the program data into a suitable control signal by means of a data conversion module and outputting it to the LED light strings. The present invention enables LED light strings of different controllers to change synchronously, and the distances between the controllers are not limited, and the synchronization effect can be achieved whenever the power is turned on.

The present disclosure discloses an enable signal generation circuit, comprising: an input module configured to input a direct current signal from the first input terminal to a first node; a transmission module configured to transmit the direct current signal at the first node to an output terminal; a first conducting module and a second conducting module configured to conduct signals in an alternating current signal from the second input terminal to the first node; a first filter module configured to filter the signal at the first node such that, at the first node, the alternating current signal from the second input terminal is conducted to a common terminal. The second input terminal is connected to the output terminal. The present disclosure simplifies the circuit structure and solves the problem caused by the difference between timing sequences of inputted signals.

A device and associated PCB structure are provided in which a dedicated area of the device substrate is patterned, so that it can be contacted by a readout arrangement of the PCB. The pattern comprises an arrangement of contact regions. Interconnections and open circuits are used to encode information. A dotted contact area of the PCB is used to probe the pattern, and relay this to a driver which can then derive information about the type of device being driven. The driver can thus be controlled accordingly.

A fluorescent lamp replacement may include one or more LED drivers and lamps in various embodiments, as well as a shock hazard/pin safety circuit. The present invention provides a fluorescent lamp replacement that, for example, powers an LED and/or OLED and/or QD lamp from a fluorescent fixture, including operating 5 and being powered by electronic ballasts. In some embodiments, a fluorescent lamp replacement includes a number of pins configured to electrically connect to a fluorescent lamp fixture, at least one non-fluorescent light source, a transistor between at least one of the pins and the at least one non-fluorescent light source, and a shock hazard protection circuit configured to disable the transistor to limit current flowing through at least some of the pins.

The disclosure provides for a visibility safety strip device, articles, garment, and applications thereof. The disclosure also provides for a lightweight and ultra-bright visibility safety strip and associated methods of promoting the visibility of the wearer, for example, in low-light environments. The disclosure provides for a safety garment that utilizes a specific performance fabric structural under layer, overlaid with a technical retroreflective film to indicate a passive visibility. In an aspect the disclosure also provides for an embedded custom color and functionality light emitting diode (“LED”) and/or organic light-emitting diode (“OLED”) to refract light through the retroreflective film to indicate an active visibility.

The present invention relates to an OLED standing lamp in which a lighting unit includes a band-shaped transparent film and a band-shaped casing plate, which are disposed on a front surface and a back surface of a band-shaped OLED lighting sheet, respectively, a support body has one end portion at an upper side thereof which is fastened to one end portion of the lighting unit and supports the lighting unit so that the lighting unit is spaced apart from the ground, and a base is extended on the ground and supports the support body fastened to the lighting unit, thereby minimizing a thickness and providing light having improved brightness, by adopting an OLED as a light source.