Abstract:
A power supply device includes n power supply circuits connected in parallel and a controller to control a number of the operating power supply. The controller includes n detectors, a comparator, and an on/off controller. The n detectors are respectively connected to the n power supply circuits. The n detectors receive feedback current from the number of operating power supply circuits. The comparator compares the feedback current with predetermined first and second reference currents and outputs first, second, and third state signals. The on/off controller determines the number of the operating power supply circuits according to a cumulative number of each of the first to third state signals during a predetermined window section, and controls a on/off state of the power supply circuits according to the determined number.
Abstract:
A display panel includes a substrate in which a transmission area, a dummy area surrounding the transmission area are defined, and a display area surrounding the dummy area, a driving circuit in the display area and including a transistor, a voltage line in the display area and electrically connected to the driving circuit, an insulating layer on the voltage line, a first pixel electrode on the insulating layer, in the display area, a bank layer covering an edge of the first pixel electrode and defining a first opening overlapping the first pixel electrode, an emission layer overlapping the first pixel electrode, an opposing electrode disposed on the emission layer, and a dummy electrode layer on the insulating layer, in the dummy area. The bank layer extends towards the dummy area and defines a plurality of dummy openings overlapping the dummy electrode layer.
Abstract:
Provided is a display device including a first base substrate, a plurality of pixels disposed on the first base substrate and each of which including a pixel area and a non-pixel area around the pixel area, a second base substrate facing the first base substrate with the pixels therebetween, and a plurality of light conversion layers disposed under the second base substrate and overlapping the pixel areas of the pixels, wherein the second base substrate includes a first part overlapping the non-pixel area, and a second part around the first part, wherein a refractive index of the first part is different from a refractive index of the second part.
Abstract:
A display device includes a display panel, pixels on the display panel, data and gate drivers, a timing controller which applies control signals respectively to the data and gate drivers, and a power management integrated circuit (“PMIC”) which applies a driving voltage to the data and gate drivers. The timing controller detects an operational condition of the display panel and selects one of stored power setting values to output the selected one of the power setting values to the PMIC. The PMIC includes, first and second storage banks, a controller which receives the power setting value from the timing controller, stores the power setting value in one of the first and second storage banks, and calls the stored power setting value to determine the driving voltage, and a power generator which applies the driving voltage based on the driving voltage determined by the controller.
Abstract:
A display device includes: a display panel including a plurality of pixels; a driving circuit configured to control the plurality of pixels; and a power controller configured to apply an output voltage to the driving circuit and to receive a feedback signal indicating an input level of the output voltage applied at an input of the driving circuit. The power controller is configured to adjust an output level of the output voltage in response to the feedback signal.
Abstract:
A display device includes a first interconnection line, a first data driver, a second interconnection line, an electrostatic discharge (ESD) circuit, and a display panel. The first connection line transmits a data driving signal. The first data driver includes the first interconnection line and output a data signal based on the data driving signal. The second interconnection line passes through the first data driver and transmits a gate driving signal. The ESD) circuit in the first data driver and discharges static electricity transmitted through the second interconnection line. The first gate driver outputs a gate signal based on the gate driving signal transmitted through the second interconnection line. The display panel receives the data signal and the gate signal.
Abstract:
A liquid crystal lens panel includes a first substrate including a lens area, a non-lens area disposed adjacent to the lens area, and a cutting area disposed adjacent to the non-lens area and including a liquid crystal driving part, a second substrate disposed opposite to the first substrate, and a liquid crystal layer interposed between the first substrate and the second substrate, where the liquid crystal driving part applies a liquid crystal driving voltage to the liquid crystal layer through the non-lens area, and liquid crystal molecules of the liquid crystal layer are driven substantially in a vertical direction by the liquid crystal driving voltage.
Abstract:
An inspection apparatus for a display substrate includes a reflection plate, a liquid crystal layer, an electrode layer, a ¼ wavelength retardation plate and a polarization plate. The liquid crystal layer is disposed on the reflection plate and includes liquid crystal molecules which have a retardation value of about 140 nanometers to about 200 nanometers and are operated in a twisted nematic mode. The electrode layer is disposed on the liquid crystal layer and generates an electric field in cooperation with an electrode of the display substrate. The ¼ wavelength retardation plate is disposed on the electrode layer and the polarization plate is disposed on the ¼ wavelength retardation plate.
Abstract:
A liquid crystal lens panel includes a first substrate including a lens area, a non-lens area disposed adjacent to the lens area, and a cutting area disposed adjacent to the non-lens area and including a liquid crystal driving part, a second substrate disposed opposite to the first substrate, and a liquid crystal layer interposed between the first substrate and the second substrate, where the liquid crystal driving part applies a liquid crystal driving voltage to the liquid crystal layer through the non-lens area, and liquid crystal molecules of the liquid crystal layer are driven substantially in a vertical direction by the liquid crystal driving voltage.
Abstract:
A liquid crystal lens panel includes a first substrate including a first base substrate and a first electrode layer disposed on the first base substrate; a second substrate including a second base substrate facing the first base substrate and a second electrode layer disposed on a surface of the second base substrate, the second substrate facing the first base substrate; and a liquid crystal layer disposed between the first substrate and the second substrate. The liquid crystal layer has a refractive index of about 0.2 to about 0.29 and a dielectric constant of about 5.5 F/m to about 10 F/m.