Abstract:
Plasma display panel (PDP 10) includes sustain/scan and sustain electrodes (26,28) arranged parallel with one another and data electrodes (14) arranged generally orthogonal to the sustain/scan and sustain electrodes (26,28). The sustain/scan and sustain electrodes (26,28) are driven simultaneously substantially at opposite phase (phase difference shown in the waveform 1X and 2X) and between low and high electrical potentials (70,72,74,76,78) with respect to one another thereby substantially eliminating electrical potential pulses from being induced on the data electrodes (14). The sustain/scan and sustain electrodes (26,28) are switched substantially simultaneously for changing electrical potential and the rate of electrical potential change on these electrodes are substantially the same but in opposite direction (the waveform as shown in the figure). Preferably, the PDP (10) is divided into a plurality of display areas which are electronically independently controlled.
Abstract:
A pixel driving circuit includes a storage capacitor, a first, a second, and a third transistor. A method for driving an organic light emitting diode (OLED) display includes controlling the second transistor by a first signal from a gate line such that the second transistor is switched "Off" for a first phase, and "On" for a second phase and a third phase, "Off" for a fourth phase. During the second phase, storing a threshold voltage of the first transistor on the storage capacitor coupled between the gate and the source of the first transistor. During the third phase, supplying a data voltage from a data line to the gate of the first transistor, and switching off the third transistor by a second signal such that the voltage at an anode of the OLED does not vary with pixel location and provides brightness uniformity for the display.
Abstract:
A display device includes a display panel having a display area in which a plurality of display pixels are two-dimensionally arranged along a plurality of rows and a plurality of columns, to display image information based on display data, a power supply driving section applying, to each of the display pixels in the display area, one of a first power supply voltage having a voltage value at which the display pixel is set to a non-display-operation state and a second power supply voltage having a voltage value at which the display pixel is set to a display operation state, and a control section controlling the power supply driving section to set a area-ratio of an first area in the display area in which the display pixels to which the first power supply voltage is applied are arranged to an second area in which the display pixels to which the second power supply voltage is applied are arranged.