摘要:
A current limitation method of a display device includes: calculating a brightness average in each frame of an inputted image; calculating a brightness difference between successive frames of the image by using the calculated brightness average, and calculating a cumulative average brightness value by cumulating the brightness average with respect to the frames included in a frame length which is varied depending on the brightness difference; converting the cumulative average brightness value into a preset brightness adjustment value; and adjusting the brightness of the inputted image according to the brightness adjustment value.
摘要:
The present invention relates to a device for generating RGB gamma voltage and a display driving apparatus using the same. The device for generating RGB gamma voltage includes: an RGB gamma compensation voltage output unit that outputs a plurality of R, G, B gamma compensation voltage corresponding to gamma compensation data with respect to R, G, and B signals; a multiplexer that receives the R, G, and B gamma compensation voltages among the outputted gamma compensation voltages one by one and selects and outputs any one gamma compensation voltage among the R, G, and B gamma compensation voltages in accordance with an RGB selection control signal; and a multiplexer controller that generates an RGB selection control signal corresponding to an output order of the R, G, and B signals and transmits the generated signal to the multiplexer and controls the signal outputted from the multiplexer in accordance with the RGB selection control signal.
摘要:
There is provided an apparatus for compensating for deterioration in an active matrix organic light-emitting diode. An apparatus for compensating for deterioration in an active matrix organic light-emitting diode being operated by a pixel driving unit may include: a switching control unit being synchronized with an operation of the pixel driving unit to thereby generate a switching control signal in order to compensate for deterioration in a pixel; and a switch circuit unit connected between an anode of the active matrix organic light-emitting diode and a terminal of a deterioration compensation voltage, being turned on or off according to the switching control signal from the switching control unit, and supplying the deterioration compensation voltage to the anode of the active matrix organic light-emitting diode while being turned on.
摘要:
Provided are a finger type photodiode and a method of manufacturing the same, which can reduce noise by forming a shallow doping layer. The finger type photodiode includes a bottom substrate supporting layers to be formed thereon, an epitaxial layer formed on the bottom substrate, a finger doping layer formed in a finger shape on a top surface of the epitaxial layer, and a shallow doping layer formed with a shallow depth on an externally exposed top surface of the epitaxial layer and a top surface of the finger doping layer. Since the dangling bond generated on the epitaxial layer and the finger doping layer is reduced, noise can be reduced, thereby improving the light efficiency and reliability of the photodiode.