An electronic apparatus is provided. The electronic apparatus includes: a plurality of LED arrays disposed in parallel, a first sensing inductor connected to a first LED array of the plurality of LED arrays in series, a first auxiliary inductor disposed adjacent to the first sensing inductor, a second sensing inductor connected to a second LED array of the plurality of LED arrays in series, a second auxiliary inductor disposed adjacent to the second sensing inductor, a variable resistance connected to the plurality of LED arrays and configured to adjust an amount of a current flowing to the plurality of LED arrays according to a resistance value, and an LED driver configured to, based on at least one of a first induced voltage generated on the first auxiliary inductor or a second induced voltage generated in the second auxiliary inductor being a threshold voltage or more, identify that an error occurs in at least one of the first LED array or the second LED array, and adjust the resistance value of the variable resistance based on the identified result.

A speaker outputting sound from a speaker portion arranged facing upward. The speaker is provided with: a first head portion including the speaker portion; a first base portion; a transparent first housing arranged between the first head portion and the first base portion; at least one LED unit arranged inside the first housing; and a control portion for driving LED elements of the LED unit on the basis of a sound signal from the outside. Each LED unit is provided with: a second head portion; a second base portion; and a transparent second housing arranged between the second head portion and the second base portion. As a result, light linked to the sound, emitted from the LED elements of the LED units, can be efficiently delivered to the eye of the user.

A speaker outputting sound from a speaker portion arranged facing upward. The speaker is provided with: a first head portion including the speaker portion; a first base portion; a transparent first housing arranged between the first head portion and the first base portion; at least one LED unit arranged inside the first housing; and a control portion for driving LED elements of the LED unit on the basis of a sound signal from the outside. Each LED unit is provided with: a second head portion; a second base portion; and a transparent second housing arranged between the second head portion and the second base portion. As a result, light linked to the sound, emitted from the LED elements of the LED units, can be efficiently delivered to the eye of the user.

A backlight module and a display device are disclosed. By allowing one backlight in a set of light sources controlled by one of driving devices to be spaced at least one row and/or one column apart from at least another backlight in the set of light sources controlled by the one of the driving devices, the present disclosure can effectively reduce influences of local dark areas caused by defects occurred in the set of light sources controlled by the one of the driving devices, and ensures normal display of the display device.

A backlight module and a display device are disclosed. By allowing one backlight in a set of light sources controlled by one of driving devices to be spaced at least one row and/or one column apart from at least another backlight in the set of light sources controlled by the one of the driving devices, the present disclosure can effectively reduce influences of local dark areas caused by defects occurred in the set of light sources controlled by the one of the driving devices, and ensures normal display of the display device.

A wireless power receiving device (WPRD) comprises an RFID responder and a beacon signal oscillator to transmit an RFID response in a case where there is no electric power which is necessary for transmission of a beacon signal. A wireless power transmitting device (WPTD) operates in a wide area power transmission mode for transmitting the electric power at a wide angle toward a direction that it receives the RFID response. When the WPRD receives the electric power in a wide area power transmission mode and transmission of the beacon signal becomes possible, it transmits the beacon signal. The WPTD operates in a centralized power transmission mode for transmitting the electric power at a narrower angle toward a direction receiving the beacon signal. Also, during the centralized power transmission mode, it cyclically performs transmission and reception of the beacon signal to detect positions of the WPRD and the WPTD.

A tube lamp including a light source including at least one string of light emitting diodes within a tube body; end caps having pin contacts on each end of the tube body; and driver electronics including a filament detector portion provided by a passive resistance capacitor (RC) circuit that simulates the filament load of a fluorescent lamp when installed into a ballast containing fixture. The tube lamp may also include a switch for selecting light characteristics for light emitted by the light source.

Disclosed herein are system, apparatus, article of manufacture, method and/or computer program product embodiments, and/or combinations and sub-combinations thereof, for a dimmer device including a driver, and a controller communicatively coupled to the driver and to a monitor device. The monitor device can include a camera and is configured to take a plurality of images of the illumination load. The controller provides a control signal that indicates to the driver to adjust power supplied to an illumination load. The control signal is provided in response to a determination that a performance of the illumination load fails to satisfy a predetermined performance indicator. The performance of the illumination load is determined based on information related to the plurality of images of the illumination load taken by the camera of the monitor device. The controller can adjust a dimming level of the illumination load by providing the control signal to the driver.

Disclosed herein are system, apparatus, article of manufacture, method and/or computer program product embodiments, and/or combinations and sub-combinations thereof, for a dimmer device including a driver, and a controller communicatively coupled to the driver and to a monitor device. The monitor device can include a camera and is configured to take a plurality of images of the illumination load. The controller provides a control signal that indicates to the driver to adjust power supplied to an illumination load. The control signal is provided in response to a determination that a performance of the illumination load fails to satisfy a predetermined performance indicator. The performance of the illumination load is determined based on information related to the plurality of images of the illumination load taken by the camera of the monitor device. The controller can adjust a dimming level of the illumination load by providing the control signal to the driver.

The present disclosure provides a light-emitting device that is able to output light with a shorter pulse. A light-emitting device according to the present disclosure includes a capacitor, one or more solid-state light-emitting elements that emit light when electric power is supplied from the capacitor, and a semiconductor switch that controls electric power supply from the capacitor to the solid-state light-emitting element. Furthermore, the solid-state light-emitting element is placed on an outer face of the capacitor, the semiconductor switch is placed on the outer face of the capacitor or provided inside the capacitor, and the capacitor includes a connecting electrode between outer electrodes, the connecting electrode allowing the solid-state light-emitting element and the semiconductor switch to be connected in series.