The present disclosure discloses a display device, including a glass substrate and a plurality of light emitting diodes (LEDs). The glass substrate includes a first side and a second side. The LEDs include a first LED and a second LED. Compared with a reference anode signal, a first anode signal received by the first LED has a first anode signal difference and a second anode signal received by the second LED has a second anode signal difference. The first anode signal difference is smaller than the second anode signal difference. Compared with a reference cathode signal, a first cathode signal received by the first LED has a first cathode signal difference and a second cathode signal received by the second LED has a second cathode signal difference. The first cathode signal difference is larger than the cathode anode signal difference.

The present disclosure discloses a display device, including a glass substrate and a plurality of light emitting diodes (LEDs). The glass substrate includes a first side and a second side. The LEDs include a first LED and a second LED. Compared with a reference anode signal, a first anode signal received by the first LED has a first anode signal difference and a second anode signal received by the second LED has a second anode signal difference. The first anode signal difference is smaller than the second anode signal difference. Compared with a reference cathode signal, a first cathode signal received by the first LED has a first cathode signal difference and a second cathode signal received by the second LED has a second cathode signal difference. The first cathode signal difference is larger than the cathode anode signal difference.

An apparatus includes a light-emitting diode (LED) driver circuit, one or more LEDs of an LED array, and an electronic switching circuit. The LED driver circuit is configured to generate an electric current. The one or more LEDs are electrically connected to the LED driver circuit. The electronic switching circuit is electrically connected to the one or more LEDs and configured to be placed in one of multiple switching configurations. The electronic switching circuit is further configured to direct a portion of the electric current away from the one or more LEDs, such that a remaining portion of the electric current drives the one or more LEDs. The portion of the electric current corresponds to the one of the multiple switching configurations.

An apparatus includes a light-emitting diode (LED) driver circuit, one or more LEDs of an LED array, and an electronic switching circuit. The LED driver circuit is configured to generate an electric current. The one or more LEDs are electrically connected to the LED driver circuit. The electronic switching circuit is electrically connected to the one or more LEDs and configured to be placed in one of multiple switching configurations. The electronic switching circuit is further configured to direct a portion of the electric current away from the one or more LEDs, such that a remaining portion of the electric current drives the one or more LEDs. The portion of the electric current corresponds to the one of the multiple switching configurations.

The present invention relates to a decorative lighting panel for mounting to a home exterior via mounting holes, brackets, bolts, etc. The panel has a frame that includes a groove between a front surface and rear surface of the panel. A plurality of illumination sources in the form of LED strips or chips are disposed in the groove, for providing illumination and a retractable plastic cover is designed to reveal the LEDs when pulled down. The plastic cover generally covers the LEDs when illumination is not required. The panel has wireless capabilities allowing a remote control or a handheld electronic device with an installed software application to remotely control the operations of the panel. The panel is designed to be electrically connected to other similar panels to form a series of panels for creating a long segment of illumination.

The present invention relates to a decorative lighting panel for mounting to a home exterior via mounting holes, brackets, bolts, etc. The panel has a frame that includes a groove between a front surface and rear surface of the panel. A plurality of illumination sources in the form of LED strips or chips are disposed in the groove, for providing illumination and a retractable plastic cover is designed to reveal the LEDs when pulled down. The plastic cover generally covers the LEDs when illumination is not required. The panel has wireless capabilities allowing a remote control or a handheld electronic device with an installed software application to remotely control the operations of the panel. The panel is designed to be electrically connected to other similar panels to form a series of panels for creating a long segment of illumination.

A control circuit includes: an output terminal configured to be coupled to a control terminal of a transistor that has a current path coupled to an inductor; a transconductance amplifier configured to produce a sense current based on a current flowing through the current path of the transistor; and a first capacitor, where the control circuit is configured to: turn on the transistor based on a clock signal, integrate the sense current with an integrating capacitor to generate a first voltage, generate a second voltage across the first capacitor based on a first current, generate a second current based on the second voltage, generate a third voltage based on the second current, turn off the transistor when the first voltage becomes higher than the third voltage; discharge the integrating capacitor when the transistor turns off; and regulate an average output current flowing through the inductor based on the first current.

A control circuit includes: an output terminal configured to be coupled to a control terminal of a transistor that has a current path coupled to an inductor; a transconductance amplifier configured to produce a sense current based on a current flowing through the current path of the transistor; and a first capacitor, where the control circuit is configured to: turn on the transistor based on a clock signal, integrate the sense current with an integrating capacitor to generate a first voltage, generate a second voltage across the first capacitor based on a first current, generate a second current based on the second voltage, generate a third voltage based on the second current, turn off the transistor when the first voltage becomes higher than the third voltage; discharge the integrating capacitor when the transistor turns off; and regulate an average output current flowing through the inductor based on the first current.

A fault diagnosis device is configured to diagnose a fault in a light emitting unit that emits light of a color according to an operating state of a robot by individually energizing and lighting a plurality of types of LEDs of different emission colors. The fault diagnosis device includes an energization control unit that controls energization of the LEDs, a voltage detection unit that detects a diagnostic voltage that varies depending on a terminal voltage of the LEDs, and a fault detection unit that detects a fault in the light emitting unit based on a control state of energization by the energization control unit and a detected value of the diagnostic voltage by the voltage detection unit.

A light engine that produces UVA1 light, but not UVA2 or UVB radiation, that will provide a human or animal subject a beneficial application of artificial UVA1 light without the deleterious effect of the UVA2 and UVB light. Methods of providing UVA1 light to the human or animal subject over various periods of time provide positive treatments that can reduce stress, reduce anxiety, increase a pain threshold, and induce interferon production. Exposure to UVA1 wavelength light (360-400 nm) provides a positive effect on both humans and animals. This is especially true when the humans or animals do not receive UVB and UVA2 at the time that the UVA1 light is received, and the ratio of UVA1 light to (UVA1 light+visible light) is greater than 10%.