Abstract: A display device includes a first substrate having light transmitting portions, a plurality of pixels positioned on the first substrate and including light emitting devices, a light sensor layer overlapping the first substrate and including light receiving devices respectively corresponding to the light transmitting portions, and a light guide layer positioned between the display panel and the light sensor layer and including light guide paths respectively corresponding to the light transmitting portions.

Abstract: An apparatus for creating virtual joint sensation is provided. The apparatus includes: a controlling part for creating control signals for controlling respective user's joints by referring to information on torques to be applied to the respective user's joints, wherein the information on the torques is acquired by analyzing information on forces to be applied to the user's body contacting a virtual object; and a torque-applying part, including one or more torque-applying units worn on the respective user's joints, for giving the torques to the respective user's joints by using the control signals.

Abstract: An apparatus for creating virtual joint sensation is provided. The apparatus includes: a controlling part for creating control signals for controlling respective user's joints by referring to information on torques to be applied to the respective user's joints, wherein the information on the torques is acquired by analyzing information on forces to be applied to the user's body contacting a virtual object; and a torque-applying part, including one or more torque-applying units worn on the respective user's joints, for giving the torques to the respective user's joints by using the control signals.

Abstract: A burning protection circuit of a display device includes a plurality of current measuring units and a control unit. The display device includes a plurality of pixel blocks. Each of the pixel blocks includes a plurality of pixels. The pixel blocks are respectively supplied with power through a plurality of power supply lines. The current measuring units are configured to respectively generate a plurality of measured current values by respectively measuring a plurality of currents respectively supplied to the pixel blocks through the power supply lines. The control unit is configured to respectively generate a plurality of block data for the pixel blocks based on pixel data for the pixels of corresponding ones of the pixel blocks, and determine whether an overcurrent occurs based on a plurality of ratios of the measured current values to corresponding ones of the block data.

Abstract: An organic light emitting display device includes a display unit including pixels coupled to scan lines and data lines, first and second power lines coupled to the pixels, a DC-DC converter configured to output first and second power sources to the pixels via the first and second power lines, respectively, and a short-circuit-sensing circuit configured to detect whether a short-circuit between the first and second power lines occurs, and configured to control an operation of the DC-DC converter when the short-circuit is detected, wherein voltage levels of the first and second power sources are configured to be changed in a frame period, the frame period including a reverse voltage application period in which the voltage level of the second power source is higher than that of the first power source.

Abstract: An organic light emitting display apparatus includes a power generating unit and a display panel. The power generating unit generates a first power voltage and a second power voltage. The display panel includes a plurality of organic light emitting elements. The organic light emitting elements have first electrodes to which the first power voltage is applied in a first direction and second electrodes to which the second power voltage is applied in a second direction.

Abstract: An organic light emitting diode (OLED) display includes a display unit including first pixels emitting first color light, second pixels emitting second color light, and third pixels emitting third color light, and a power source voltage supplier supplying a driving voltage to the respective pixels of the display unit. The display further includes a first voltage wire transferring the driving voltage to the first pixels, a second voltage wire transferring the driving voltage to the second pixels, and a third voltage wire transferring the driving voltage to the third pixels. The first, second and third voltage wires being provided in a first layer. The display includes auxiliary voltage wires provided in a second layer different from the first layer. Contact areas between the first, second and third voltage wire and the auxiliary voltage wires are different from each other.

Abstract: An organic light emitting display apparatus includes a power generating unit and a display panel. The power generating unit generates a first power voltage and a second power voltage. The display panel includes a plurality of organic light emitting elements. The organic light emitting elements have first electrodes to which the first power voltage is applied in a first direction and second electrodes to which the second power voltage is applied in a second direction.

Abstract: An organic light emitting display capable of preventing data collision to improve picture quality. The organic light emitting display includes pixels positioned at crossings between scan lines and data lines, a scan driver for driving the scan lines, a data driver for driving the data lines, a timing controller for controlling the scan driver and the data driver, and an input controller for receiving data and an input clock, and for controlling a point in time where the data is supplied to the timing controller in response to at least one clock signal supplied from the timing controller.

Abstract: The self-lighting subpixels of a display device are ones whose output luminances are functions of analog drive voltages applied to the subpixels and corresponding digital grayscale command signals used for controlling the subpixels. The display device generates corresponding analog dimming values and digital dimming values in accordance with supplied current limiting parameters and generates control value signals using the analog dimming values and the digital dimming values. It also changes the original grayscale digital data values of input video signals of one frame in accordance with the digital dimming values.

Abstract: A pixel circuit and organic light emitting display device using the pixel circuit are disclosed. One aspect of the pixel circuit includes an organic light emitting diode, a switching transistor configured to transfer a data signal in response to a scan signal, a storage capacitor configured to store the data signal transferred through the switching transistor, an amplifying unit configured to amplify the data signal stored in the storage capacitor to generate an amplified signal having a swing range greater than a swing range of the data signal, and a driving transistor configured to drive the organic light emitting diode in response to the amplified signal.

Abstract: An organic light emitting diode (OLED) display including: a display unit including pixels; and a power supply unit including: an output terminal; a reference terminal having an insulated output; and a bias circuit generating a first power source voltage from a received input voltage and supplying a second power source voltage to the reference terminal wherein the first power source voltage and the second power source voltage are voltages driving the plurality of pixels, wherein the bias circuit supplies the second power source voltage to the reference terminal and the plurality of pixels and is referenced to a ground voltage, and wherein a current flowing to the pixels flows to the reference terminal. In the OLED display, one power supply may be used as a power supply powering electroluminescence (EL), and thereby a cost of the OLED display may be reduced and a power efficiency may be improved.

Abstract: An interface circuit comprises a first integrated circuit to transmit or receive data, a second integrated circuit connected to the first integrated circuit by a transmission line to transmit or receive data, and a constant current generating circuit connected to the transmission line so as to output a current of a constant magnitude to the transmission line. The constant current generating circuit adjusts the amount of current outputted to the transmission line by sensing a voltage level of the transmission line.

Abstract: An organic light emitting display and a driving method of the organic light emitting display capable of reducing or minimizing power consumption. The driving method includes setting a number of selection times constituting one frame, and setting a number of unit times constituting the one frame. Each of the unit times includes j (j is a natural number of 2 or more) of the selection times. Scan signals are non-sequentially supplied to scan lines during each of the unit times. The one frame includes a number of subframes. Data signals for ones of the subframes having a same length are supplied corresponding to i (i is a natural number of 2 or more) consecutive ones of the scan signals.

Abstract: A burning protection circuit of a display device includes a plurality of current measuring units and a control unit. The display device includes a plurality of pixel blocks. Each of the pixel blocks includes a plurality of pixels. The pixel blocks are respectively supplied with power through a plurality of power supply lines. The current measuring units are configured to respectively generate a plurality of measured current values by respectively measuring a plurality of currents respectively supplied to the pixel blocks through the power supply lines. The control unit is configured to respectively generate a plurality of block data for the pixel blocks based on pixel data for the pixels of corresponding ones of the pixel blocks, and determine whether an overcurrent occurs based on a plurality of ratios of the measured current values to corresponding ones of the block data.

Abstract: A scan driver includes a first decoder generating a plurality of output signals through a plurality of first logic gates, and a second decoder including a plurality of first logic circuits connected to a first terminal of a plurality of scan lines and a plurality of second logic circuits connected to a second terminal of the plurality of scan lines. The plurality of first logic circuits supply a source current to a corresponding scan line according to the corresponding output signal among the plurality of output signals. The plurality of second logic circuits sinks a sink current to the corresponding scan line according to the corresponding output signal among the plurality of output signals.

Abstract: An organic light emitting display includes: pixels respectively positioned in areas defined by scan lines and data lines; a scan driver configured to non-sequentially supply a scan signal to the scan lines, and to control a signal supplied by a first control line commonly coupled to the pixels so that the pixels are set in a non-emission state during a first period that is a partial period of an i (i is a natural number) frame and during a first period that is a partial period of an (i+2) frame; a data driver configured to supply a left data signal to the data lines during the i frame and during an (i+1) frame, and to supply a right data signal to the data lines during the (i+2) frame and during an (i+3) frame; and a timing controller configured to control the scan driver and the data driver, and to supply data to the data driver, wherein each of the (i+1) frame and the (i+3) frame is a period shorter than that of the i frame.

Abstract: A pixel and an organic light emitting diode (OLED) display device including the same are disclosed. The pixel includes an organic light emitting diode and an inverse voltage transistor positioned between an anode of the organic light emitting diode and a reverse bias power source, and configured to transmit the inverse voltage to the organic light emitting diode (OLED).

Abstract: An organic light emitting display device includes a display unit including pixels coupled to scan lines and data lines, first and second power lines coupled to the pixels, a DC-DC converter configured to output first and second power sources to the pixels via the first and second power lines, respectively, and a short-circuit-sensing circuit configured to detect whether a short-circuit between the first and second power lines occurs, and configured to control an operation of the DC-DC converter when the short-circuit is detected, wherein voltage levels of the first and second power sources are configured to be changed in a frame period, the frame period including a reverse voltage application period in which the voltage level of the second power source is higher than that of the first power source.

Abstract: A pulse generator that is capable of improving (e.g., increasing) the rising and falling speeds of its pulses. The pulse generator includes a third switch and a first diode serially coupled between a first power source and a data line; a fourth switch and a second diode serially coupled between the data line and a second power source configured to have a voltage lower than that of the first power source; a pulse controller for increasing a voltage of the data line to a voltage higher than that of the first power source or for reducing the voltage of the data line to a voltage lower than that of the second power source; and a first capacitor coupled between the pulse controller and the data line.