Abstract: An organic light emitting display device capable of maintaining a voltage of a driving power of a display panel in a substantially constant manner. The organic light emitting display device includes a display panel for receiving an image data and an input voltage to display an image; a driving IC for supplying the image data to the display panel, receiving the input voltage, and outputting an offset control signal in accordance with the received input voltage; and a power supply for controlling the input voltage in accordance with the offset control signal, and supplying the controlled input voltage to the display panel.

Abstract: An organic light-emitting diode (OLED) display apparatus, including a control unit to receive an image signal and to generate a frame-based image data signal and a frame identification signal based at least in part on the received image signal, the frame identification signal being synchronized with the frame-based image data signal, a driving voltage supply unit to generate a first voltage for a switching unit and a second voltage for a display unit, and a switching unit to receive the first voltage and the frame identification signal and to supply the first voltage for the display unit based at least in part on the frame identification signal.

Abstract: An electrical coupling configured to prevent voltage surges during coupling and uncoupling. A plurality of ground terminals and a plurality of signal terminals are arrayed to open onto an exterior mating surface of an electrical coupling such as a D-sub type electrical connector, with the distal ends of the ground terminals protruding outwardly farther from their corresponding pinholes towards the exterior mating surface than the distal ends of the signal terminals. These configurations prevent the input and output controlling circuit stages from being disabled by the occurrence of noise superimposed upon the power lines or momentary surges of voltage generated while the system is temporarily ungrounded during coupling, with an assurrance that during coupling, the ground terminals establish electrically conducting paths before the signal terminals. These configurations are suitable for printer cables, repeater cables and connector cables of other devices.