Abstract:
An electroluminescent display and a method of sensing electrical characteristics of the electroluminescent display are disclosed. The electroluminescent display includes a display panel including a plurality of pixels, a plurality of gate lines, and a plurality of data lines and a driver integrated circuit connected to the data line through a channel terminal. The driver integrated circuit includes a data voltage generator configured to generate a data voltage to be supplied to the pixel, a first switch connected between the channel terminal and the data voltage generator, a sensor configured to sense electrical characteristics of the pixel, and a second switch connected between the channel terminal and the sensor.
Abstract:
A display device includes a plurality of scanning lines (X 1 - X m ), a plurality of signal lines (Y 1 - Y n ), a scanning driver (5) which sequentially supplies to the scanning lines selection signals that select the scanning lines, a data driver (3) which supplies a designation current to the plurality of signal lines within a selection period when the scanning lines are being selected, a plurality of pixel circuits which supplies a driving current corresponding to a current value of the designation current that flows to the signal lines, a plurality of optical elements (E 1,1 - E m,n ) which emit light in accordance with the driving current supplied by the plurality of pixel circuits and a power supply (6) which outputs to the plurality of pixel circuits a driving current reference voltage to supply the driving current.
Abstract:
Disclosed herein is a current control for a lighting assembly, which may be an LED lighting assembly, which may be a pulse width modulated ("PWM") current control or other form of current control where each current-controlled unit is uniquely addressable and capable of receiving illumination color information on a computer lighting network. In an embodiment, the invention includes a binary tree network configuration of lighting units (nodes). In another embodiment, the present invention comprises a heat dissipating housing, made out of a heat-conductive material, for housing the lighting assembly. The heat dissipating housing contains two stacked circuit boards holding respectively the power module and the light module. The light module is adapted to be conveniently interchanged with other light modules.
Abstract:
The present disclosure relates to a pixel driving circuit, a display apparatus and a pixel driving method. The pixel driving circuit comprises a reset unit. The reset unit is arranged to enable the storage capacitor to store not only a data voltage but also a threshold voltage of the driving unit in the charging phase, to compensate for the driving unit in the driving phase, so that the operating current of the driving unit is not influenced by the threshold voltage. This eliminates the influence of the threshold voltage of the driving unit to the operating current of the driving unit, thereby solving the technical problem of non-uniformity of display brightness of the light-emitting elements due to inconsistency of threshold voltages and improving the display quality of the display apparatus. Further, the reset unit is moved outside an active display area, and is shared by a row of pixel driving circuits, which can significantly increase the aperture rate of the pixels. In this way, the current density of the organic light-emitting layer is reduced, thereby extending the usage life of the display panel.
Abstract:
The present disclosure relates to a pixel driving circuit, a display apparatus and a pixel driving method. The pixel driving circuit comprises a reset unit. The reset unit is arranged to enable the storage capacitor to store not only a data voltage but also a threshold voltage of the driving unit in the charging phase, to compensate for the driving unit in the driving phase, so that the operating current of the driving unit is not influenced by the threshold voltage. This eliminates the influence of the threshold voltage of the driving unit to the operating current of the driving unit, thereby solving the technical problem of non-uniformity of display brightness of the light-emitting elements due to inconsistency of threshold voltages and improving the display quality of the display apparatus. Further, the reset unit is moved outside an active display area, and is shared by a row of pixel driving circuits, which can significantly increase the aperture rate of the pixels. In this way, the current density of the organic light-emitting layer is reduced, thereby extending the usage life of the display panel.
Abstract:
A display device includes a differential signaling driver configured to produce a differential signal using a variable current, first and second signal lines configured to maintain a loop current in response to a signal output by the differential signaling driver, a current controller configured to reduce the variable current when one of low data and high data of image data is equal to or greater than a critical value, and a receiving unit configured to receive the differential signal through the first and second signal lines.