Abstract: An organic thin film transistor that has good adhesiveness and good contact resistance as well as allows ohmic contact between an organic semiconductor layer and a source electrode and a drain electrode, and its manufacturing method. There is also provided a flat panel display device using the organic thin film transistor. The organic thin film transistor includes a source electrode, a drain electrode, an organic semiconductor layer, a gate insulating layer, and a gate electrode formed on a substrate, and a carrier relay layer including conductive polymer material formed at least between the organic semiconductor layer and the source electrode or the organic semiconductor layer and the drain electrode.

Abstract: A light-emitting polymer composition for a light-emitting layer in an organic EL display device includes at least first and second light-emitting polymers having different interfacial characteristics which lower a cohesion between elements of the first and second light-emitting polymers.

Abstract: A battery pack is constructed with a rechargeable battery, a protection circuit part that protects the battery when the battery is charged and discharged, and a switching unit that turns on or off a power source of the protection circuit part. Also, the battery pack may be constructed with a rechargeable battery, a protection circuit part that protects the battery when the battery is charged and discharged, and electric wiring lines constructed so that the power source of the protection circuit part may be turned on and off. When the battery pack is not connected to a charger or a load by the switching unit or the electric wire lines, the power source of the circuit is blocked to prevent the battery pack from being shorted and to reduce the idle power. When the battery pack is connected to the charger or the load, the power source is applied to the circuit so that the circuit operates.

Abstract: An organic light emitting diode display includes a panel assembly having a display section and a pad section, and a bezel that couples with the panel assembly. The bezel includes a back on which the panel assembly is placed, side walls located at an edge of the back of the bezel, and a protrusion reinforcing portion formed at a region corresponding to the pad section and a vicinity of the pad section in the back of the bezel.

Abstract: An organic light emitting device and a method of manufacturing the same, the organic light emitting device includes a first electrode, a second electrode, and an organic layer that has at least a multi-coated emissive layer and which is interposed between the first and second electrodes. The multi-coated emissive layer is a single layer composed of a neutral emissive material and an no?ne parameter of the emissive layer is greater than an no?ne parameter of a single-coated layer. The organic light emitting device has a longer lifetime and high efficiency.

Abstract: An apparatus and method for aligning a mask that includes disposing and firstly aligning a mask over a first substrate, with a space interposed therebetween, bringing the mask into contact with the first substrate and then measuring the alignment state of the mask with respect to the first substrate to detect an alignment error, secondly aligning the mask with respect to the first substrate based on the alignment error, transferring the first substrate to the next process, disposing and thirdly aligning the mask over a second substrate with the space interposed therebetween, and bringing the mask into contact with the second substrate.

Abstract: A substrate etching apparatus includes a supporting unit for supporting substrate in a vertical position and an etching solution supply unit disposed above the substrate to supply an etching solution to the top of the substrate such that the etching solution runs down both of faces of the substrate from the top of the substrate.

Abstract: A flat panel display sequentially supplying data signals to a pixel portion using a demultiplexer and a method of driving the flat panel sufficiently supply scan signals in a horizontal period to prevent deformation and distortion of the data signal supplied to each pixel and compensate for a threshold voltage of a drive transistor of the pixel. The flat panel display includes a pixel portion having a plurality of pixels, a scan driver to supply scan signals to the pixel portion, a data driver to generate data signals, a demultiplexer portion to sequentially supply the data signals to the pixel portion, and a lighting tester to supply a lighting test signal and an initialization signal to the pixel portion. Alternatively, the flat panel display includes a pixel portion having a plurality of pixels, a scan driver to supply scan signals to the pixel portion, a data driver to output data signals and a demultiplexer portion to sequentially supply an initialization signal and the data signal to the pixel portion.

Abstract: An X-ray detector constructed as an exemplary embodiment of the present invention includes a semiconductor layer, a data line including a source electrode covering a first portion of the semiconductor layer, a drain electrode disposed opposite to the source electrode, a first lower electrode formed on the upper portion of a second portion of the semiconductor layer and a gate insulating layer and elongated from the drain electrode, and a passivation layer formed on the upper portion of one part of the lower electrode including the drain electrode. Further, the second lower electrode is formed approaching the gate electrode. The X-ray detector constructed as the exemplary embodiment of the present invention includes a second lower electrode formed on the passivation layer and placed approaching a gate electrode. The area in which a diode is disposed may be maximized, and the amount of leakage current may be reduced.

Abstract: Provided is a flat display device, and more particularly, an active matrix (AM) flat display device having a thin film transistor (TFT). The flat display device includes a substrate, a plurality of TFTs (thin film transistors) provided on the substrate, each TFT comprising an active layer, a source electrode and a drain electrode that contact the active layer, and an ohmic contact layer interposed between the active layer and the source and drain electrodes, and a light emitting device electrically connected to the TFT, wherein the ohmic contact layer and a layer including the source and drain electrodes are formed to have the same pattern.

Abstract: The present invention relates to a large-sized and high-quality bismuth-zinc-borate (Bi.sub.2 ZnB.sub.2 O.sub.7) single crystal, preparation methods and applications thereof. The crystal has cross-sectional dimensions greater than one centimeter, a nonlinear optical effect of about 3-4 times that of KH.sub.2 PO.sub.4 (KDP), and an optical transmission wavelength range of 330-3300 nm. The crystal can be grown from a compound melt by a Czochralski method, a Kyropoulos method or a Bridgman method with the raw material being the synthetic compound Bi.sub.2 ZnB.sub.2 O.sub.7. Alternatively, the crystal may be grown from a high-temperature solution method by using Bi.sub.2 O.sub.3 as a flux. The crystal may be applied in nonlinear optical devices such as frequency doubling generators, frequency upconverters or downconverters, and optical parametric oscillators.

Abstract: To minimize stress variations applied to mother glasses when a glass sealing material is melted via a laser to combine the mother glasses, a method of manufacturing a flat panel display device includes providing a plurality of emission units between a first substrate and a second substrate, wherein the first substrates faces the second substrate and each emission unit forms a unit display device; providing a plurality of walls between the first substrate and the second substrate, wherein each wall respectively surrounds one of the emission units; irradiating a laser beam onto the walls, wherein the laser beam is simultaneously irradiated to wall portions aligned in a row in a first direction; scanning the laser beam in a second direction, wherein the second direction is different from the first direction to irradiate other wall portions of the plurality of walls; and cutting the first and second substrates to obtain individual display devices.

Abstract: A laser system including an optical cable jumper with input and output terminals, and a laser gun, wherein the optical jumper transmits a laser beam from a bundle-type optical cable connected to an input terminal thereof to a single-type optical cable connected to an output terminal thereof. The laser gun is connected to the single-type optical cable at a rear of the optical cable jumper to illuminate the laser beam to a target object.

Abstract: An organic lighting emitting diode display device (OLED display device) and a method of fabricating the same. The OLED display device includes: a substrate; a first electrode disposed on the substrate; an emission layer disposed on the first electrode; a second electrode disposed on the emission layer; and a hole injection layer disposed between the first electrode and the emission layer or between the emission layer and the second electrode, and formed of an inorganic semiconductor material, which evaporates at a temperature of 1100° C. or less. The method includes forming the hole injection layer between the first electrode and the second electrode, by thermally evaporating the inorganic semiconductor material, at a temperature of 1100° C., or less.

Abstract: A touch screen panel that includes a transparent substrate, first sensing patterns formed on the transparent substrate and having first sensing cells arranged in a column and first coupling lines for coupling adjacent first sensing cells, second sensing patterns formed on the transparent substrate and having second sensing cells arranged in a row of the same Y coordinate in a second direction. An insulating layer is formed on the first and second sensing patterns with a number of contact holes formed to expose end portions of the second sensing cells that form the second sensing patterns are formed. A number of coupling patterns are formed on the insulating layer where the contact holes were formed. A number of metal patterns are arranged on edges of regions in which the first and second sensing patterns are formed to electrically couple the sensing patterns in the units of the column or the row to position detection lines.

Abstract: A thin film transistor using an oxide semiconductor as an active layer, and its method of manufacture. The thin film transistor includes: a substrate; an active layer formed of an oxide semiconductor; a gate insulating layer formed of a dielectric on the active layer, the dielectric having an etching selectivity of 20 to 100:1 with respect to the oxide semiconductor; a gate electrode formed on the gate insulating layer; an insulating layer formed on the substrate including the gate electrode and having contact holes to expose the active layer; and source and drain electrodes connected to the active layer through the contact holes. Since the source and drain electrodes are not overlapped with the gate electrode, parasitic capacitance between the source and drain electrodes and the gate electrode is minimized. Since the gate insulating layer is formed of dielectric having a high etching selectivity with respect to oxide semiconductor, the active layer is not deteriorated.

Abstract: The secondary battery according to the present invention has a vent deformation accelerator which promotes the operation of a vent formed on a wide side of a can in the cap plate, a bottom side of a can or a narrow side of a can so that the vent operates at the low pressure. Therefore, a secondary battery is provided with a vent which operates at a lower pressure than the operating pressure of existing vents. Also, the vent can be formed relatively thick when the operating vent which operates at the same pressure as the operating pressure of an existing vent so that it can avoid forming a vent having a minute thickness, thereby reducing the manufacturing costs and processing time.

Abstract: An organic light emitting diode (OLED) display that includes a first substrate having a display area, a photo sensor arranged on a first substrate external to the display area, and a condensing lens arranged at an upper portion of the photo sensor to condense external light into the photo sensor, allowing the photo sensor to more efficiently detect an amount of external light. In this OLED display, an automatic luminance control function can be efficiently performed by increasing a condensing efficiency of the photo sensor.

Abstract: An organic light emitting display which minimizes the IR drop of voltages supplied to an organic light emitting display panel includes an organic light emitting display panel having a pixel unit on which an image is displayed and first and second power source pads provided at two or more edges outside the pixel unit to receive first and second voltages from at least two directions, and a voltage supplier Flexible Printed Circuit Board (FPCB) including pads electrically coupled to the first and second power source pads and arranged on the outer circumference of the organic light emitting display so as not to overlap with the pixel unit.

Abstract: A plasma display panel including a front substrate and a rear substrate facing each other; a barrier wall interposed between the front substrate and the rear substrate, including base portions arranged on either side of a main discharge space and protruding portions protruding on the base portions, and defining stepped spaces on either side of the main discharge space; a scan and a sustain electrode pair including a pair of bus electrodes disposed in the main discharge space and a pair of transparent electrodes extending from the bus electrodes toward the stepped space; an address electrode that generates, together with the scan electrode, an address discharge and crossing the scan electrode; a phosphor layer formed across the main discharge space and the stepped spaces; and a discharge gas filled in the main discharge space and the stepped spaces.