Abstract: The disclosure provides a backlight module. The backlight module has a first light-emitting region and a second light-emitting region encircling the first light-emitting region. The backlight module further includes at least one first light-emitting module and at least one second light-emitting module, the at least one second light-emitting module is arranged on a peripheral side of the first light-emitting module, the at least one first light-emitting module is located in the first light-emitting region, and the at least one second light-emitting module is located in the second light-emitting region. The first light-emitting module includes multiple first light strings, the second light-emitting module includes multiple second light strings, and the multiple first light strings has a layout density greater than the multiple second light strings.

Abstract: A light emitting display device includes: a first display area including a first light-emitting element and a first pixel circuit unit; and a second display area including a second light-emitting element disposed to overlap a driving unit and a second pixel circuit unit which drives the second light-emitting element, where the first pixel circuit unit further include a first boost capacitor.

Abstract: An LED lamp and a power source module thereof are provided. The power source module includes a switch-type DC-to-DC converter integrated with a function for detecting whether a foreign external impedance exists. The switch-type DC-to-DC converter is configured to enter an installation detection mode when the switch-type DC-to-DC converter is activated. When the switch-type DC-to-DC converter is in the installation detection mode, the switch-type DC-to-DC converter receives an external AC signal received by the LED lamp to detect whether a foreign external impedance exists based on the received signal.

Abstract: A display device is disclosed, which includes: a first substrate; an oxide semiconductor layer disposed on the first substrate; a silicon semiconductor layer disposed on the first substrate; and a capacitor including a first conductive component and a second conductive component, wherein the first conductive component is electrically connected to the oxide semiconductor layer and the second conductive component is electrically connected to the silicon semiconductor layer.

Abstract: A light-emitting device includes a carrier with a first surface and a second surface opposite to the first surface; and a light-emitting unit disposed on the first surface and configured to emit a light toward but not passing through the first surface. When emitting the light, the light-emitting device has a first light intensity above the first surface, and a second light intensity under the second surface, a ratio of the first light intensity to the second light intensity is in a range of 2˜9.

Abstract: A light-emitting diode (LED) tube lamp comprising a tube, end caps with contact pins and located on both ends of the tube, a first rectifying circuit and a second rectifying circuit and a filtering circuit that are coupled with the contact pins on the two end caps respectively, and a switch circuitry that is located between the rectifying circuits and the filtering circuit characterized in that the switch circuitry is capable of detecting whether the LED tube lamp is correctly installed on a lamp socket so as to reduce the risk of electric shock.

Abstract: A pixel circuit and a driving method thereof, and a display device are provided. The pixel circuit includes a data writing circuit, a driving circuit, a first compensation circuit, a second compensation circuit and a light emitting element. The driving circuit includes a control terminal, a first terminal and a second terminal, and is configured to control a driving current which runs through the first terminal and the second terminal and is used to drive the light emitting element to emit light; the data writing circuit is connected with the control terminal of the driving circuit, and is configured to write a data signal or a reference voltage signal to the control terminal of the driving circuit in response to a scan signal.

Abstract: The invention further describes tube LED lamp (1) realised to replace a fluorescent tube lamp (70), which tube LED lamp (1) comprises a tube (12) containing an LED arrangement (10) with a number of LEDs (100); a connector arrangement (16A, 16B) with connectors (16) realized for insertion into sockets (50) of a socket arrangement (50A, 50B) of a tube lamp housing (5) incorporating a dimming ballast (20, 21); a driver circuit arrangement (11) for driving the LED arrangement (10), which driver circuit arrangement (11) is realized to output an LED current (ILED) on the basis of an input current provided by the dimming ballast (20, 21); and a safety switch (S13, M1) arranged within the tube (12) to electrically isolate connectors (16) of the connector arrangement (16A, 16B), wherein the safety switch (S13, M1) is arranged between the driver circuit arrangement (11) and the LED arrangement (10).

Abstract: An LED light with a shift switch related to the technical field of LED lights includes a diffuser, a light body, and a light head sequentially connected from top to bottom. A driving power board and an LED light source board are provided in the light body. A position hole is provided on a side wall of the light body. The driving power board is provided with the shift switch, and the shift switch is provided with a shift handle which passes through the position hole. According to the present application, the effects of reducing the difficulty of modification and replacement and improving the convenience of using the LED light are achieved by controlling the color temperature, the timing or the light intensity of the LED light by multiple positions of the shift switch.

Abstract: A display device includes: a substrate; a pixel connected to a gate line and a data line on the substrate; a connection unit connected to one of the gate line and the data line of the substrate; and a driving integrated circuit mounted on the connection unit. The connection unit includes: a lead line connected to the driving integrated circuit; and a first dummy line adjacent to a first side of the connection unit, the first side intersecting a side of the substrate, the first side extending in a first direction, the first dummy line extending in a second direction intersecting the first direction. The side of the substrate overlaps the connection unit, and a third side of the connection unit overlaps the substrate without intersecting the side of the substrate, the third side extending in the second direction. The first dummy line is disposed between the side of the substrate and the third side of the connection unit.

Abstract: A flexible display structure and an electronic device are disclosed, which both includes a flexible substrate having a first region, at least one second region, and at least one first bendable region; a display function layer disposed on the first region; and a first function assembly disposed on the at least one second region and electrically connected to the display function layer through the first metal wiring.

Abstract: A display device includes a pixel, a first control pad, a second control pad, and a first dummy pad. The pixel may emit light with luminance corresponding to a data signal. Supply of the data signal to the pixel depends on a first control signal and a second control signal. The first control pad is connected to a first control line for supplying the first control signal. The second control pad is connected to a second control line for supplying the second control signal. The first dummy pad is positioned between the first control pad and the second control pad and may receive a first dummy signal. A voltage level of the first dummy signal is in a range from a voltage level of the first control signal to a voltage level of the second control signal.

Abstract: A lamp module group includes an LED lamp board, a power supply driving module, a concentric male terminal, and a first housing, which can achieve the purposes of heat conduction and heat dissipation, waterproofing, and rotational coaxial connection power extraction. A waterproof rubber ring is squeezed by the first housing causing a second housing where the concentric male terminal and the concentric female terminal is located, achieving the purpose of capable of achieving waterproofing between the first housing and the second housing. The first housing and the second housing are connected into one body by a thread, which may conduct the heat of the power supply driving module and the LED lamp board, thereby achieving the purpose of dissipating the heat of the power supply driving module and the LED lamp board.

Abstract: A LED lighting apparatus has a circuit board and a base. The base is a hollow structure. The base with lateral wall has a conducting element. The circuit board is in the base and has a LED power driving circuit and a LED source. The LED power driving circuit has a full-bridge rectification. A ?-filter circuit and a non-isolated switch driving circuit connected in order. An output terminal of the non-isolated switch driving circuit is connected with the LED source. The full-bridge rectification, the ?-filter circuit and the non-isolated switch driving circuit are common grounded to form a power ground. The power ground is electronically connected with the conducting element in order to reduce the interference of an electromagnetic energy generated by the high-frequency switch signal to other appliances.

Abstract: Disclosed is a protective device of a lighting assembly, the lighting assembly comprising at least one LED, a first end lamp base and a second end lamp base, and the protective device including a first detecting module and a second detecting module and a driving module. The first detecting module and the second detecting are configured to detect a connection state of the first end lamp base to output a first detecting signal, and a connection state of the second end lamp base to output a second detecting signal. The driving module is connected to the at least one LED and configured to control the at least one LED to work based on the first detecting signal and the second detecting signal. The present disclosure also discloses a lighting assembly including the protective device and a protective method of the lighting assembly.

Abstract: A lighting driver is for receiving an alternating current power supply from a fluorescent lighting ballast. A shunt device is provided for selectively shunting the power supply to implement dimming control. A detector is provided for generating a detection signal and for providing the detection signal to the control circuit to operate the shunt device. The detector has a detection circuit for analyzing a voltage at the driver input and generating 5 the detection signal accordingly, when the voltage is detected. In addition, for situations where the voltage detection does not correctly generate the detection signal, a correction circuit generates the detection signal for a time delay from the end of operating the shunt device. This prevents control stability problems at low dimming levels.

Abstract: A power supply module is configured to provide, based on an external driving signal, a driving current for driving an LED tube lamp. The power supply module includes a detection path circuit, configured to establish a detection path which is capable of affecting an electrical signal on a power line of the power supply module when the detection path is turned on, and a driving circuit, electrically connected to the detection path circuit, and configured to produce the driving current based on the external driving signal. When the driving circuit is activated by receiving the external driving signal, the driving circuit enters into a first mode to detect whether a foreign external impedance is electrically connected to the LED tube lamp. When the foreign external impedance is detected, the driving circuit remains in the first mode, and when the foreign external impedance is not detected, the driving circuit enters into a second mode to produce the driving current.

Abstract: A display device includes a resin substrate, a TFT layer, a light-emitting element, a frame region, a terminal portion, a bending portion, a plurality of frame wiring lines, and at least a one-layer inorganic film. The light-emitting element includes a metal electrode provided on a flattening film included in the TFT layer. In the bending portion, an opening is formed in at least the one-layer inorganic film. A frame flattening film is provided to fill the opening. The plurality of frame wiring lines are provided on the frame flattening film across the opening. The frame wiring line is formed of a metal material identical to the metal material of the metal electrode. The frame flattening film is formed of a resin material identical to the resin material of the flattening film.

Abstract: A retrofit Light Emitting Diode, LED, tube for connecting to a High Frequency, HF, ballast, which LED tube comprises a switchable capacitor arrangement for ensuring that the ballast does not go into over current protection mode, wherein the switching is controlled based on a desired dimming level of the LED tube. The switchable capacitor arrangement is provided in parallel with said input of said rectifier, and comprises at least a first capacitor and a second capacitor in series, and said control circuit is adapted to configure said switchable capacitor arrangement to conduct the AC power and switch at least one of the first capacitor and the second capacitor between the rectifier and the LED array to block the DC power to said LED array.

Abstract: This disclosure relates to a display panel, an electroluminescent device and a manufacturing method for the electroluminescent device. The electroluminescent device includes a first transparent electrode layer, an electroluminescent layer, a channel layer, a second transparent electrode layer, a dielectric layer, a light absorption layer and a third electrode layer stacked in turn, wherein the light absorption layer can be excited by a light emitted from the electroluminescent layer to generate photocarriers. The present disclosure may reduce power consumption of the panel and also reduce cost and enable products such as a panel to meet the needs for ultra-thinning and miniaturization.

Abstract: Disclosed techniques include energy management with multiple pressurized storage elements. Energy is obtained from one or more energy sources. Energy requirements are modeled over a first time period and a second time period. A first subset of the energy that was obtained is allocated for storage in a first energy store based on the modeling. A second subset of the energy that was obtained is allocated for storage in a second energy store based on the modeling, where the second energy store comprises a pressurized storage element. Energy is routed to the first energy store from the second energy store based on the modeling. Recovering energy further includes using the energy routed to the first energy store or the second energy store, based on the modeling.

Abstract: An LED light bulb with integrated power supply, and which may incorporate integrated communications and processing functions. The LED light bulb is designed to be efficiently manufactured in mass quantities using automated assembly techniques, and is constructed to exhibit the spatial light pattern of a regular incandescent bulb as closely as possible. Where communications and processing functions are integrated, the LED light bulb is able to communicate via wireless communications to a mobile phone, notebook, tablet, or other computing device.

Abstract: An LED tube lamp comprises a lamp tube, two end caps attached at two ends of the lamp tube respectively, a power supply disposed in one of the two end caps or separately in both of the end caps, an LED light strip disposed inside the lamp tube and a protective layer disposed on the LED light strip. The LED light strip comprises a mounting region and a connecting region. The plurality of LED light sources is mounted on the mounting region and two soldering pads are disposed on the connecting region. The mounting region and the connecting region are electrically connecting the plurality of LED light sources with the power supply. The protective layer comprises a plurality of first openings arranged on the mounting region for accommodating the LED light sources and two second openings are arranged on the connecting region for accommodating the two soldering pad.

Abstract: An LED tube lamp comprises a lamp tube, two end caps attached at two ends of the lamp tube respectively, a power supply disposed in one of the two end caps or separately in both of the end caps, an LED light strip disposed inside the lamp tube and a protective layer disposed on the LED light strip. The LED light strip comprises a mounting region and a connecting region. The plurality of LED light sources is mounted on the mounting region and two soldering pads are disposed on the connecting region. The mounting region and the connecting region are electrically connecting the plurality of LED light sources with the power supply. The protective layer comprises a plurality of first openings arranged on the mounting region for accommodating the LED light sources and two second openings are arranged on the connecting region for accommodating the two soldering pad.

Abstract: An internet of things system having a smart light bulb and a smart fixture. The smart light bulb may be inserted into and connect with the smart fixture for power to the smart light bulb. The smart light bulb may be configured by reading configuration information from a memory in the smart fixture. As a whole, the system may have two or more smart light bulbs inserted in two or more smart fixtures, respectively. The two or more smart light bulbs may be interconnected with one another with communication links to make up a mesh network. Non-bulb devices may be connected to the mesh network.

Abstract: A current holding circuit for a bidirectional triode thyristor (TRIAC) dimmer and a linear dimming driving circuit are provided. The current holding circuit for a TRIAC dimmer is a resistance and capacitance (RC) circuit including a first resistor and a first capacitor connected in series. The RC circuit is connected in parallel with any one of rectifying diodes of a rectifying bridge in the linear dimming driving circuit. The linear dimming driving circuit includes an overcurrent protecting circuit, a rectifying bridge including four rectifying diodes connected, the RC circuit, a surge suppressing circuit configured to absorb a high surge voltage of an input voltage, a filtering circuit, a linear constant-current circuit, and a flicker eliminating circuit configured to eliminate flicker caused by an asymmetrical current of a light emitting diode (LED) load due to the RC circuit.

Abstract: An LED tube lamp includes a tube having two ends, two end caps respectively at the ends of the tube, a power supply in one or both of the end caps, an LED light strip in the tube; and a plurality of LED light sources on the LED light strip. Each of the end caps comprises a lateral wall substantially coaxial with the tube, an end wall substantially perpendicular to an axial direction of the lateral wall, and at least one opening penetrating through the end wall. An axial direction of the at least one opening is substantially parallel with an axial direction of the lateral wall. The LED light sources electrically connected to the power supply via the LED light strip.

Abstract: A lighting device includes a filament, a filament fixing element, a driving circuit, a lamp holder and a bulb shell. The filament has a long strip bottom, installed with a plurality of LED modules. The filament fixing element has a bearing surface and a heat dissipation part. The bearing surface connects to the long strip bottom of the filament. The heat dissipation part is connected to the bearing surface to dissipate the heat. The driving circuit provides a suitable current to the filament for emitting light. The lamp holder houses the drive circuit and carries the filament fixing element. The bulb shell and the lamp holder constitute an accommodating space for receiving the filament and the filament fixing element.

Abstract: A lighting device and a method for manufacturing a lighting device, the lighting device comprising an elongated body (10), a cover (20), and one or more light sources (30). The body (10) of the lighting device comprises a bottom (13) and walls (11, 12) extending from the bottom and having open edges, whereby the cover (20) of the lighting device is formed from a light transmitting plastic material tube arranged between the open edges of said walls (11, 12) at a distance from the bottom (13), the one or more light sources (30) being located in a space delimited by the body (10) and the cover (20) of the lighting device, the body of the lighting device comprising at least one curved portion to provide a curved lighting device.

Abstract: A light-emitting diode (LED) tube lamp includes at least a first and second external connection terminal each connected to an opposite side of the ballast by-pass LED tube lamp and is capable of operating in a ballast-bypass mode The LED tube lamp includes an LED module configured to emit light in response to a lamp driving signal and a power supply module electrically connected to the first and second external connection terminals for receiving an AC supply signal having frequency of 50 Hz or 60 Hz in the ballast-bypass mode and configured to provide the driving current to the LED module.

Abstract: A ballast-bypass light-emitting diode (LED) tube lamp includes at least a first and second external connection terminal, the first and second external connection terminals respectively connected to opposite sides of the ballast by-pass LED tube lamp. The tube lamp includes an LED module, configured to emit light in response to a driving current, and a power supply module, electrically connected to the first and second external connection terminals for receiving an AC driving signal and configured to provide the driving current to the LED module. The power supply module comprises a rectifying circuit, a filtering circuit, a driving circuit, and a circuit electrically connected to the driving circuit and configured to operate in response to whether a foreign external impedance is connected to the LED tube lamp.

Abstract: A light source unit includes a light emitting element which functions as a light source, a wiring pattern on which the light emitting element is mounted, an electrode pad connected to the wiring pattern, a substrate on which the wiring pattern is formed and the electrode pad is mounted, a power supply body which supplies external power to the electrode pad, and a socket housing which has an engaging portion engaged with a predetermined member and holds the substrate, the light emitting element and the power supply body. The power supply body has a terminal holding portion formed of an insulating resin material and a connection terminal supported by the terminal holding portion and connected to an external power supply. The connection terminal and the electrode pad are connected to each other by a conduction connecting part.

Abstract: An LED tube lamp comprises a lamp tube, two end caps attached at two ends of the lamp tube respectively, a power supply disposed in one of the two end caps or separately in both of the end caps, an LED light strip disposed inside the lamp tube and a protective layer disposed on the LED light strip. The LED light strip comprises a mounting region and a connecting region. The plurality of LED light sources is mounted on the mounting region and two soldering pads are disposed on the connecting region. The mounting region and the connecting region are electrically connecting the plurality of LED light sources with the power supply. The protective layer comprises a plurality of first openings arranged on the mounting region for accommodating the LED light sources and two second openings are arranged on the connecting region for accommodating the two soldering pad.

Abstract: Embodiments of the present disclosure relate to a lighting strip, comprising a flexible printed circuit strip which comprises a plurality of wiring portions and a plurality of respective carrying portions, the wiring portions are used to supply electrical power to electric elements disposed on the carrying portions, and the carrying portions protrude from the wiring portions and are adapted to be bent around the wiring portions; a plurality of solid-state lighting elements respectively mounted on the carrying portions; wherein the wiring portion is provided with at least one pitch adjusting portion for adjusting a pitch between two adjacent carrying portions. Embodiments of the present disclosure also relate to a lighting device.

Abstract: An electric candle including a body having a wax-like exterior configured to mimic an appearance of a wax candle, a first non-laser light source disposed at least partially within the body and configured to produce a light which mimics a flame of a wax candle, and a second light source producing a laser light disposed at least partially within the body and including a lens configured to disperse the laser light.

Abstract: The present disclosure discloses an image display method and a display apparatus. The display apparatus includes a pixel array which is composed of a plurality of basic pixel units repeated along horizontal and vertical directions; the pixel array includes first sub-pixels of a first color, second sub-pixels of a second color and third sub-pixels of a third color; wherein, the display method includes: acquiring first data denoting positions and gray values needed to be displayed of each color in the image respectively; acquiring second data denoting space proportions of each color occupied in each pixel of the pixel array respectively; and for each of the sub-pixels contained in each of the pixels, acquiring third data according to the first data and the second data to display the image, the third data denoting a display gray value of each of the sub-pixels of the pixels in the pixel array.

Abstract: An LED tube lamp is disclosed. An installation detection circuit is configured in the LED tube lamp configured to receive an external driving signal. The installation detection circuit is configured to detect during one or more pulse signals whether the LED tube lamp is properly installed on a lamp socket, based on detecting a signal generated from the external driving signal. The installation detection circuit includes a switch circuit coupled to the pulse generating circuit, wherein the one or more pulse signals control turning on and off of the switch circuit.

Abstract: A thin-film transistor array panel includes a gate line disposed on a first substrate, the gate line including a gate electrode, a semiconductor layer disposed on the first substrate, the semiconductor layer including an oxide semiconductor, a data wire layer disposed on the first substrate, the data wire layer including a data line crossing the gate line, a source electrode connected to the data line, and a drain electrode facing the source electrode, a capping layer disposed on the data wire layer, a tilt layer disposed on the capping layer, and a passivation layer disposed on the tilt layer, in which the tilt layer includes a silsesquioxane-based copolymer.

Abstract: An LED tube lamp includes a lamp tube having two pins to receive an external driving signal; a rectifying circuit coupled to the two pins to rectify the external driving signal; a filtering circuit coupled to the rectifying circuit to filter rectified signal; and an LED lighting module coupled to the filtering circuit to receive the filtered signal to emit light. The LED lighting module further has a driving circuit and an LED module, the driving circuit includes a controller and a conversion circuit coupled to the filtering circuit to receive and convert filtered signal into driving signal to drive the LED module. The LED tub lamp further includes an over voltage protection circuit coupled to the filtering circuit for detecting the filtered signal, the over voltage protection circuit clamps the filtered signal when determining the filtered signal is higher than a defined over voltage protection value.

Abstract: A power supply module is applicable to an LED tube lamp adapted to install on a lamp socket, and having electric shock protection function, the LED tube lamp including a lamp tube; two end caps, each having a first external connection terminal, and each coupled to a respective end of the lamp tube, the first connection terminals of the two end caps for receiving an external signal; and an LED module configured for emitting light.

Abstract: A wireless replacement light bulb with one or more accompanying control switches, such as an integrated switch and/or a wireless lamp switch is provided. The bulb comprises a light source, such as an LED element, a controller, a wireless interface, and one or more accompanying control switches, such as an integrated switch and/or a wireless lamp switch. The bulb can be controlled, such as turned on or off, by a user using the integrated switch, the wireless lamp switch, or a combination thereof. The integrated switch and the wireless lamp switch does not remove power from the controller, allowing the controller to control the bulb in response to receiving a wireless control signal from a remote electronic device, such as a remote control, a smartphone, a tablet, or the like.

Abstract: A lighting circuit comprises a first circuit (1) with an element (31) with a diode function coupled serially to a parallel combination of a capacitor (41) and a serial combination of a first LED (21) and a first switch (11) and comprises a second circuit (2) with a second switch (12). The circuits (1, 2) are parallel circuits. The lighting circuit produces light in response to a supply current from a current source (6). The second switch (12), when conducting, lets the supply current pass and prevents it from flowing through the element (31), and, when non-conducting, blocks the supply current and it flows through the element (31). The first switch (11), when non-conducting, prevents the first LED (21) from producing some of the light, and, when conducting, allows the first LED (21) to produce some of the light. Power for the first LED (21) is delivered via the supply current when flowing through the element (31) or via a capacitor current supplied by the capacitor (41).

Abstract: An LED lighting system includes a plurality of light-emitting diodes (LEDs), at least one driver to drive the plurality of LEDs, and at least one heat sink to dissipate thermal energy produced by the LEDs. The heat sink communicates a thermal resistance value or other heat dissipation characteristic information to the LED lighting system. A power adjustment module of the LED lighting system modifies a current flow to the plurality of LEDs based on the characteristics of the heat sink.

Abstract: An ionizer includes: a positive-side transformer, and a negative-side transformer; a positive-side high-voltage output circuit that has a first input terminal and a second input terminal that are respectively connected to a ground terminal and a power supply terminal, the ground terminal and power supply terminal being provided on the secondary of the positive-side transformer, and also has a first output terminal from which a direct-current positive high voltage is output; a negative-side high-voltage output circuit that has a third input terminal and a fourth input terminal that are respectively connected to a ground terminal and a power supply terminal, the ground terminal and power supply terminal being provided on the secondary of the negative-side transformer, and also has a second output terminal from which a direct-current negative high voltage is output; and a discharge electrode connected to the first output terminal.

Abstract: A power converter for an LED assembly includes a switched mode power supply arranged to power the LED assembly, an AC/DC converter arranged to provide a DC supply voltage to the switched mode power supply, and a control unit arranged to receive an input signal representing a required load voltage for powering the LED assembly. The control unit is arranged to control the AC/DC converter based on the input signal.

Abstract: A modular lighting and ancillary component apparatus and system utilizes standard USB protocol and connections between modules so that different modules can be selected, installed, and changed by a user. The USB-C protocol is preferably used, which may permit bidirectional functionality between connected modules in an apparatus and potentially between separate apparatuses. The USB-PD protocol may also be employed so that a greater range of items can be powered. The apparatus includes a base module, and may include one or more ancillary modules and/or a light-emitting module.

Abstract: A power source module for an LED lamp includes a filament-simulating circuit electrically connected to a first bi-pin terminal and a second bi-pin terminal of the LED lamp, each of the first bi-pin terminal and the second bi-pin terminal configured to allow a current to flow from one pin to the other pin via the filament-simulating circuit during a pre-heat process executed by a ballast; a current limiting circuit electrically connected to the filament-simulating circuit configured to limit a current from the filament-simulating circuit; a first rectifier electrically connected to the current limiting circuit configured to rectify the current from the current limiting circuit; and a filter electrically connected between the first rectifier and at least one LED of the LED lamp configured to smooth the current from the first rectifier.

Abstract: An LED tube lamp is disclosed. An installation detection circuit is configured in the LED tube lamp configured to receive an external driving signal. The installation detection circuit is configured to detect during one or more pulse signals whether the LED tube lamp is properly installed on a lamp socket, based on detecting a signal generated from the external driving signal. The installation detection circuit includes a switch circuit coupled to the pulse generating circuit, wherein the one or more pulse signals control turning on and off of the switch circuit.

Abstract: An LED light bulb with integrated power supply, and which may incorporate integrated communications and processing functions. The LED light bulb is designed to be efficiently manufactured in mass quantities using automated assembly techniques, and is constructed to exhibit the spatial light pattern of a regular incandescent bulb as closely as possible. Where communications and processing functions are integrated, the LED light bulb is able to communicate via wireless communications to a mobile phone, notebook, tablet, or other computing device.

Abstract: A lamp head assembly is provided. The lamp head assembly includes a plurality of arrays of light producing elements; a driver circuit configured to provide energy to each of the plurality of arrays; and a microprocessor for controlling operation of the driver circuit.