Abstract: Disclosed herein is an untact DC electric-field sensor having improved sensitivity. The untact DC electric-field sensor has a circuit composed of a variable capacitor and an RF generator and improves sensitivity through resonance of the circuit by connecting an inductor to the sensor.

Abstract: The present invention relates to a flexible energy conversion device using a liquid, and more specifically, to a method and a device for converting mechanical energy into electric energy by applying an opposite phenomenon of electrowetting, which can change a surface contacting the liquid between one pair of electrodes, and use the change of the surface contacting the liquid to generate electric energy, so as to prevent channel blocking or so that a lubricating layer or electrodes patterned onto a channel in a complicated manner are not required, thereby enabling simplification of the device, reduction of manufacturing cost, and the energy conversion device that is less faulty.

Abstract: A device for measuring a penetration rate of outdoor air including humidity or oxygen of a material, and a reaction material cartridge for measuring an outdoor air penetration rate. The device includes a reacting part including a reaction material which reacts upon contact with outdoor air passing through a substrate; a cartridge body which accommodates the reaction part, and which is detachable from a measuring unit for measuring a change corresponding to the contact of the reaction material with the outdoor air; and a shielding means which shields the cartridge body, and which is separated from the cartridge body for contact between the reaction material and the outdoor air.

Abstract: An organic electroluminescent (EL) display device having a plurality of pixel circuits formed at crossing points of a plurality of scan lines and a plurality of data lines is provided. Each pixel circuit includes at least two driving transistors connected to a first power voltage line, the at least two driving transistors receiving a data signal through at least one of the data lines and outputting a driving current corresponding to the data signal; and an organic light emitting diode having at least two first electrodes respectively connected to the at least two driving transistors and emitting a light corresponding to the driving current. The organic light emitting diode has the at least two first electrodes and a common second electrode per pixel in order to prevent the whole pixel from not operating due to a short circuit occurring between one of the first electrodes and the second electrode.

Abstract: Provided are a flat panel display device including a protection board configured to prevent damage of a display panel from external impact, and a method of fabricating the same. The display panel and the protection board are closely attached, and distortion of an image displayed on the display panel due to a space between the display panel and the protection board can be prevented. The flat panel display device includes a display panel including a lower substrate, an upper substrate and at least one light emitting element disposed between the lower and upper substrates, a protection board disposed on the display panel, and an adhesive layer disposed between the display panel and the protection board.

Abstract: An organic light emitting display and a driving method thereof. The organic light emitting display includes a display unit for emitting light in response to a current flowing through the display unit from a first power supply to a second power supply. The current corresponds to a data signal and a scan signal. According to one embodiment, the organic light emitting display further includes a power supply unit having a first output terminal for outputting a first power of the first power supply and a second output terminal for outputting a second power of the second power supply to the display unit, and a driving voltage calculation unit for determining a voltage of the second power corresponding to the current, thereby the power consumption of the organic light emitting display may be reduced.

Abstract: An organic light emitting diode (OLED) display includes an illuminance sensing unit configured to sense an external illuminance, a brightness determination unit configured to determine a brightness of the OLED display according to an illuminance sensed by the illuminance sensing unit, a driving voltage determination unit configured to determine a driving voltage corresponding with a current saturation point of the OLED display, the driving voltage being determined based at least in part on a driving current and the brightness determined by the brightness determination unit, a voltage conversion unit configured to receive an input voltage, generate a first voltage higher than the input voltage, and generate a second voltage lower than the input voltage, and a display unit configured to receive the first and second voltages from the voltage conversion unit and display an image.

Abstract: An organic electroluminescent (EL) display device having a plurality of pixel circuits formed at crossing points of a plurality of scan lines and a plurality of data lines is provided. Each pixel circuit includes at least two driving transistors connected to a first power voltage line, the at least two driving transistors receiving a data signal through at least one of the data lines and outputting a driving current corresponding to the data signal; and an organic light emitting diode having at least two first electrodes respectively connected to the at least two driving transistors and emitting a light corresponding to the driving current. The organic light emitting diode has the at least two first electrodes and a common second electrode per pixel in order to prevent the whole pixel from not operating due to a short circuit occurring between one of the first electrodes and the second electrode.

Abstract: A flat display panel is constructed in such a manner that weak impact resistance of a substrate, due to a step difference present on the flat display panel, is prevented. The flat display panel includes: a substrate; a facing member bonded to the substrate, and having a surface area smaller than that of the substrate; a display unit disposed between the substrate and the facing member; a bonding unit which bonds the substrate and the facing member, and which is interposed between the substrate and the facing member along outer sides of the display unit; and a buffer member included on outer sides of the bonding unit of the substrate.

Abstract: An active matrix organic light emitting device having a structure where a plurality of emission layers having each separate current path are stacked. In the active matrix organic light emitting device of the present invention, a plurality of emission layers are stacked on an insulating substrate. A thin film transistor is formed on the insulating substrate and is connected in common with a number of electrode layers to independently drive the plurality of emission layers.

Abstract: The invention provides an electronic device configured to prevent or reduce electrostatic discharge from causing a pixel to malfunction. An electronic device manufactured according to the principles of the invention may include multiple conductive layers that cross but do not contact each other, wherein at least one of the conductive layers includes a width change part having a width that changes in a length direction of the at least one of the conductive layers, and a tab connected to at least one of the conductive layers at a region thereof that does not cross a neighboring conductive layer. Alternatively, the width change part may have a width that continuously varies along a length of the at least one conductive layer and may also have obtuse corner edges. The invention also provides a flat organic electroluminescent display (OELD) or LCD display device that includes such an electronic device.

Abstract: Provided are a flat panel display device including a protection board configured to prevent damage of a display panel from external impact, and a method of fabricating the same. The display panel and the protection board are closely attached, and distortion of an image displayed on the display panel due to a space between the display panel and the protection board can be prevented. The flat panel display device includes a display panel including a lower substrate, an upper substrate and at least one light emitting element disposed between the lower and upper substrates, a protection board disposed on the display panel, and an adhesive layer disposed between the display panel and the protection board.

Abstract: The invention provides an electronic device configured to prevent or reduce electrostatic discharge from causing a pixel to malfunction. An electronic device manufactured according to the principles of the invention may include multiple conductive layers that cross but do not contact each other, wherein at least one of the conductive layers includes a width change part having a width that changes in a length direction of the at least one of the conductive layers, and a tab connected to at least one of the conductive layers at a region thereof that does not cross a neighboring conductive layer. Alternatively, the width change part may have a width that continuously varies along a length of the at least one conductive layer and may also have obtuse corner edges. The invention also provides a flat organic electroluminescent display (OELD) or LCD display device that includes such an electronic device.

Abstract: An organic light emitting display and a driving method thereof. The organic light emitting display includes a display unit for emitting light in response to a current flowing through the display unit from a first power supply to a second power supply. The current corresponds to a data signal and a scan signal. According to one embodiment, the organic light emitting display further includes a power supply unit having a first output terminal for outputting a first power of the first power supply and a second output terminal for outputting a second power of the second power supply to the display unit, and a driving voltage calculation unit for determining a voltage of the second power corresponding to the current, thereby the power consumption of the organic light emitting display may be reduced.

Abstract: An organic light emitting diode (OLED) display includes a first substrate, a second substrate, a sealing member, wire patterns, and a planarization layer. The first and second substrates face each other. The sealing member is disposed between the first substrate and the second substrate for sealing a space between the first substrate and the second substrate. The wire patterns are formed on at least one of the first and second substrates. The planarization layer is disposed between the wire patterns and is connected to the sealing member.

Abstract: An organic light emitting diode (OLED) display includes an illuminance sensing unit configured to sense an external illuminance, a brightness determination unit configured to determine a brightness of the OLED display according to an illuminance sensed by the illuminance sensing unit, a driving voltage determination unit configured to determine a driving voltage corresponding with a current saturation point of the OLED display, the driving voltage being determined based at least in part on a driving current and the brightness determined by the brightness determination unit, a voltage conversion unit configured to receive an input voltage, generate a first voltage higher than the input voltage, and generate a second voltage lower than the input voltage, and a display unit configured to receive the first and second voltages from the voltage conversion unit and display an image.

Abstract: The invention provides an electronic device configured to prevent or reduce electrostatic discharge from causing a pixel to malfunction. An electronic device manufactured according to the principles of the invention may include multiple conductive layers that cross but do not contact each other, wherein at least one of the conductive layers includes a width change part having a width that changes in a length direction of the at least one of the conductive layers, and a tab connected to at least one of the conductive layers at a region thereof that does not cross a neighboring conductive layer. Alternatively, the width change part may have a width that continuously varies along a length of the at least one conductive layer and may also have obtuse corner edges. The invention also provides a flat organic electroluminescent display (OELD) or LCD display device that includes such an electronic device.

Abstract: Provided is an OLED display in which one surface is used as a display and the other surface is used as a mirror by forming a reflective layer to a predetermined thickness on a non-emission surface. The OLED display includes at least one OLED display element that includes a pixel electrode, an organic layer having at least an emission layer, an opposite electrode and a thin-film transistor. A top-emitting OLED display includes a reflective pixel electrode and a transparent opposite electrode. A bottom-emitting OLED display includes a transparent pixel electrode and a reflective opposite electrode. The reflective layer may be a metal layer having a reflectivity of approximately 70% or more, and may be formed of at least one material selected from the group consisting of Cr-based, Al-based, Ag-based, Sn-based, Mo-based, Fe-based, Pt-based, and Hg-based metals. The reflective layer may have a thickness of about 100 ? or more.

Abstract: An organic electroluminescent (EL) display device having a plurality of pixel circuits formed at crossing points of a plurality of scan lines and a plurality of data lines is provided. Each pixel circuit includes at least two driving transistors connected to a first power voltage line, the at least two driving transistors receiving a data signal through at least one of the data lines and outputting a driving current corresponding to the data signal; and an organic light emitting diode having at least two first electrodes respectively connected to the at least two driving transistors and emitting a light corresponding to the driving current. The organic light emitting diode has the at least two first electrodes and a common second electrode per pixel in order to prevent the whole pixel from not operating due to a short circuit occurring between one of the first electrodes and the second electrode.

Abstract: A flat display panel is constructed in such a manner that weak impact resistance of a substrate, due to a step difference present on the flat display panel, is prevented. The flat display panel includes: a substrate; a facing member bonded to the substrate, and having a surface area smaller than that of the substrate; a display unit disposed between the substrate and the facing member; a bonding unit which bonds the substrate and the facing member, and which is interposed between the substrate and the facing member along outer sides of the display unit; and a buffer member included on outer sides of the bonding unit of the substrate.