Abstract: Provided is a solar cell and a manufacturing method thereof. The cell includes a back-contact electrode on a substrate, a light absorbing layer on the back-contact electrode, an anti-defect layer on the light absorbing layer, a buffer layer on the anti-defect layer, and an upper electrode on a buffer layer. The anti-defect layer may contain an alkaline earth metal.

Abstract: The present invention relates to a lighting device and a control method therefor. The lighting device according to the present invention comprises: a light source unit comprising one or more light emitting elements; a first body to which the light source unit is mounted; a second body; a sensor unit for sensing at least one of a relative posture and a relative position of the first body to the second body; and a control unit for controlling the light emitting operation of the light source unit on the basis of at least one of the relative posture and the relative position of the first body.

Abstract: Disclosed are a display device and a method for driving a pixel of the display device. The device and method is capable of securing a time to sense a threshold voltage of a driving transistor and of compensating for the threshold voltage during operation of the pixel. Each of a plurality of pixels has a 5T1C structure including first to fourth transistors and a driving transistor. The first to fourth transistors are configured to apply driving signals through first to fourth scan lines, respectively. Thus, even without increasing the number of driving signals applied to each pixel, a long time for sensing a threshold voltage of each pixel can be secured.

Abstract: A pixel circuit driving method of controlling an operation of a light-emitting element provided in a pixel of a display panel may comprise: applying pulse amplitude modulation (PAM) signals having a plurality of levels to a first terminal of a first transistor having a second terminal connected to a control terminal of a second transistor configured to drive the light-emitting element with a current according to a gray scale required for the light-emitting element; and applying a PAM signal of any one level selected from the PAM signals to the control terminal of the second transistor during each sub-frame time corresponding to a turn-on time of the first transistor controlled by a pulse width modulation (PWM) signal having a plurality of sub-frames in a single frame according to the gray scale.

Abstract: Disclosed are a pixel circuit comprising an optical fingerprint sensing circuit, a method of driving a pixel circuit comprising an optical fingerprint sensing circuit, and a display device comprising a pixel circuit comprising an optical fingerprint sensing circuit. According to the present disclosure, the pixel circuit comprising an optical fingerprint sensing circuit comprises a pixel control circuit, the pixel control circuit comprising: a first photodetector which receives a light and generates a first signal; a second photodetector which receives a light and generates a second signal; and a self-illuminator which receives differential signals of the first signal and second signal and outputs an output signal, includes at least one transistor component and at least one capacitor component, and outputs a light on the basis of a data signal.

Abstract: The present disclosure relates to a pixel circuit including an optical fingerprint sensing circuit, a method for driving a pixel circuit including the optical fingerprint sensing circuit, and a display device including the pixel circuit including the optical fingerprint sensing circuit. The pixel circuit includes: a self-light emitting element which displays images by a driving current controlled by a driving transistor; and a light-receiving element which receives light emitted from the self-light emitting element and reflected through a fingerprint of a user and converts it into a photocurrent. The driving transistor functions as a buffer which transmits an output voltage of the light-receiving element to an output line of the pixel circuit.

Abstract: A pixel circuit may comprise: a first transistor having a first terminal connected to a data line and to which a data signal is applied and a gate terminal connected to a scan line and to which a scan signal is applied; a third transistor having a gate terminal connected to a second terminal of the first transistor and a second terminal connected to a light emitting device; a capacitor having a second terminal commonly connected to the second terminal of the first transistor and the gate terminal of the third transistor; and a second transistor having a second terminal commonly connected to a first terminal of the capacitor and a first terminal of the third transistor, a first terminal connected to a first power supply voltage, and a gate terminal connected to an emission line to which an emission signal is applied.

Abstract: A pixel circuit driving method of controlling an operation of a light-emitting element provided in a pixel of a display panel may comprise: applying pulse amplitude modulation (PAM) signals having a plurality of levels to a first terminal of a first transistor having a second terminal connected to a control terminal of a second transistor configured to drive the light-emitting element with a current according to a gray scale required for the light-emitting element; and applying a PAM signal of any one level selected from the PAM signals to the control terminal of the second transistor during each sub-frame time corresponding to a turn-on time of the first transistor controlled by a pulse width modulation (PWM) signal having a plurality of sub-frames in a single frame according to the gray scale.

Abstract: The present disclosure related to an optical fingerprint identification display and a driving method thereof. In the optical fingerprint identification display and the driving method thereof, the fingerprint identification display includes: a display panel and a processor. The display panel includes a plurality of pixels arranged in a two-dimensional matrix. The pixel includes: at least one subpixel which emits light on the basis of a first signal received from the processor; and an optical sensor which receives the light emitted from the subpixel and is reflected from a fingerprint and generates a second signal. The processor determines a touch region on the display panel, and transmits the first signal to one or more pixels included in the touch region, and identifies the fingerprint of the user on the basis of the second signal received from the pixel.

Abstract: The present invention relates to a lighting device and a control method therefor. The lighting device according to the present invention comprises: a light source unit comprising one or more light emitting elements; a first body to which the light source unit is mounted; a second body; a sensor unit for sensing at least one of a relative posture and a relative position of the first body to the second body; and a control unit for controlling the light emitting operation of the light source unit on the basis of at least one of the relative posture and the relative position of the first body.

Abstract: Disclosed is a pixel circuit including an optical fingerprint sensing circuit, a method for driving a pixel circuit including an optical fingerprint sensing circuit, and a display device comprising a pixel circuit including an optical fingerprint sensing circuit. The pixel circuit according to the present disclosure is characterized by comprising: a self-light emitting element which displays an image with a drive current controlled by a drive transistor; and a light-receiving element which receives light emitted from the self-light emitting element and reflected through a user's fingerprint, and converts the light into a photoelectric current, wherein the drive transistor functions as a buffer which transfers the output voltage of the light receiving element to an output line of the pixel circuit.

Abstract: Disclosed are a pixel circuit comprising an optical fingerprint sensing circuit, a method of driving a pixel circuit comprising an optical fingerprint sensing circuit, and a display device comprising a pixel circuit comprising an optical fingerprint sensing circuit. According to the present disclosure, the pixel circuit comprising an optical fingerprint sensing circuit comprises a pixel control circuit, the pixel control circuit comprising: a first photodetector which receives a light and generates a first signal; a second photodetector which receives a light and generates a second signal; and a self-illuminator which receives differential signals of the first signal and second signal and outputs an output signal, includes at least one transistor component and at least one capacitor component, and outputs a light on the basis of a data signal.

Abstract: The present disclosure related to an optical fingerprint identification display and a driving method thereof. In the optical fingerprint identification display and the driving method thereof, the fingerprint identification display includes: a display panel and a processor. The display panel includes a plurality of pixels arranged in a two-dimensional matrix. The pixel includes: at least one subpixel which emits light on the basis of a first signal received from the processor; and an optical sensor which receives the light emitted from the subpixel and is reflected from a fingerprint and generates a second signal. The processor determines a touch region on the display panel, and transmits the first signal to one or more pixels included in the touch region, and identifies the fingerprint of the user on the basis of the second signal received from the pixel.

Abstract: Disclosed is a hybrid type air-compressor, which has a main body including a cylinder having upper and lower portions, a motor assembly including an eccentric shaft passing through a side surface of the main body to eccentrically rotate in the cylinder, a first communication part covering an upper portion of the cylinder of the main body and introducing air to discharge the air to the upper portion of the cylinder, a second communication part covering a lower portion of the cylinder of the main body and introducing air to discharge the air to the lower portion of the cylinder; and an air compressing means connected to the eccentric shaft of the motor assembly and vertically moving in the cylinder to alternately compress air introduced into the upper and lower portions of the cylinder.

Abstract: A universal input device to attach to a target of a user, including a motion detector to detect motion of the target, a contact detector to detect types of contacts with the target, a controller to generate position data corresponding to the motion and control data, including mode setting data to set a mode of the device, corresponding to the types of the contacts, a communicator which transmits the position and the control data to an external host device, and a casing, accommodating the motion detector, the contact detector, the communicator, and the controller, into which the target is inserted.

Abstract: Disclosed herein are novel 1,3-dihydro-5-isobenzofurancarbonitrile derivatives represented by Formula 1, or pharmaceutically acceptable salts thereof. Also disclosed is a pharmaceutical composition for treating or preventing premature ejaculation including the compound. The 1,3-dihydro-5-isobenzofurancarbonitrile derivatives have a short half-life and inhibit the ejaculation process by selectively inhibiting serotonin reuptake via a serotonin reuptake transporter present in a presynaptic neuron. Thus, the compounds are useful in the treatment and prevention of premature ejaculation.

Abstract: Disclosed is a hybrid type air-compressor, which has a main body including a cylinder having upper and lower portions, a motor assembly including an eccentric shaft passing through a side surface of the main body to eccentrically rotate in the cylinder, a first communication part covering an upper portion of the cylinder of the main body and introducing air to discharge the air to the upper portion of the cylinder, a second communication part covering a lower portion of the cylinder of the main body and introducing air to discharge the air to the lower portion of the cylinder; and an air compressing means connected to the eccentric shaft of the motor assembly and vertically moving in the cylinder to alternately compress air introduced into the upper and lower portions of the cylinder.

Abstract: The present invention provides a 3?,4?,5-trimethoxy flavone derivative and a pharmaceutically acceptable salt thereof, preparation thereof, and a pharmaceutical composition for the treatment and prevention of dry eye syndrome comprising the same as an active ingredient. The 3?,4?,5-trimethoxy flavone derivative and its pharmaceutically acceptable salt inhibit corneal damage through excellent stimulatory action on mucus secretion in the conjunctiva and therefore may be effective as a prophylactic or therapeutic agent for dry eye syndrome.