Abstract:
A display has a spatial light modulator 10 for dynamically controlling a luminance of each pixel according to an input signal, the spatial light modulator having a non uniform spatial characteristic, the display also having an optical filter 20 having a spatial pattern to alter the luminance to compensate at least partially for the non uniform spatial characteristic. An electronic signal processing element applies some pre compensation predominantly of higher spatial frequencies for the non uniform spatial characteristic. Such dynamic and optical compensation can enable tuning for different optimizations or for compensating for variations over time. A backlight has an optical source and an optical filter, the source having a colour output which has a non uniform spatial characteristic, and the optical filter having a spatial pattern to alter the colour to compensate in part at least for the non uniform spatial characteristic.
Abstract:
The embodiment of the present disclosure provides a pixel unit driving circuit comprising: a driving unit; a charging unit; a storage unit configured to be charged during the charging stage of the pixel unit driving circuit, and provide a control voltage to the driving unit during a driving stage of the pixel unit driving circuit; a lighting control unit configured to make that a driving current provided from the driving unit to the lighting element during the driving stage of the pixel unit driving circuit is independent on a threshold voltage of the driving unit; and the driving control unit connected to the lighting control unit, the storage unit and the driving unit and configured to control the supply of the control voltage of the driving unit. According the embodiments of the present disclosure, the influence of the threshold voltage of the driving unit on the operating current is eliminated by providing the lighting control unit and the driving control unit, so as to moderate the drift of the threshold voltage caused by process procedure and a long term operation and to ensure the uniformity of the displayed brightness of the lighting element.
Abstract:
A radio resource selecting method according to the present invention semi-persistently selects a radio resource to be allocated to an uplink acknowledgement signal indicating a reception state of a persistently allocated downlink signal from a plurality of radio resources defined by frequencies and codes, and includes the steps of: (A) selecting candidates for an allocation radio resource to be allocated to the uplink acknowledgement signal from the plurality of radio resources; (B) notifying candidate information on the selected candidates for the allocation radio resource; and (C) selecting a single allocation radio resource from the plurality of candidates for the allocation radio resource indicated in the candidate information notified in the step (B).
Abstract:
In an EL display device in which color purity of each of red, blue and green is different, the EL display device displaying an image of a desired balance of red, blue and green is provided. A video signal supplied to each EL element is gamma (³)-corrected by a correction circuit, the color purity of each of blue luminescence, green luminescence, and red luminescence is suitably controlled in accordance with the voltage and current of the corrected video signal.
Abstract:
A liquid crystal display according to an exemplary embodiment of the present inventive concept includes: a plurality of pixels including a plurality of pixel electrodes formed on a first substrate and including first domain division means, and a common electrode formed on a second substrate that faces the first substrate and including second domain division means; a gate driver and a data driver connected to the plurality of pixels; and a compensation controller connected to the data driver, the compensation controller transmits compensation voltages to the data driver, wherein, when viewed on the same plane, distances between the first domain division means and the second domain division means are changed according to a location of the plurality of pixels, and wherein the compensation voltages are changed corresponding to the distances between the first domain division means and the second domain division means..