Abstract: A device for irradiating a laser beam onto an amorphous silicon thin film formed on a substrate. The device includes: a stage mounting the substrate; a laser oscillator for generating a laser beam; a projection lens for focusing and guiding the laser beam onto the thin film; a reflector for reflecting the laser beam guided onto the thin film; a controller for controlling a position of the reflector, and an absorber for absorbing the laser beam reflected by the reflector.

Abstract: A slim type portable terminal is provided comprising a first housing on which a keypad and a microphone unit are arranged, and a second housing comprising a liquid crystal display unit and a speaker unit, in which a printed circuit board is disposed adjacent to the liquid crystal display unit and arranged side by side with the liquid crystal display unit on a co-planar surface, and a buffer member is attached to an upper surface of the liquid crystal display unit, through which a flexible circuit provided to the terminal extends.

Abstract: A mask for forming polysilicon has a first slit region where a plurality of horizontal slit patterns are arranged in the vertical direction while bearing the same width, a second slit region where a plurality of horizontal slit patterns are arranged in the vertical direction while baring the same width, a third slit region where a plurality of horizontal slit patterns are arranged in the vertical direction while bearing the same width, and a fourth slit region where a plurality of horizontal slit patterns are arranged in the vertical direction while bearing the same width. The slit patterns arranged at the first to fourth slit regions are sequentially enlarged in width in the horizontal direction in multiple proportion to the width d of the slit pattern at the first slit region. The centers of the slit patterns arranged at the first to fourth slit regions in the horizontal direction are placed at the same line.

Abstract: In a communication system, subchannel state information for a plurality of user equipments (UEs) are collected, and a plurality of subchannel state prediction parameter values for the respective UEs are calculated using the subchannel state information. In addition, the communication system allocates at least one subchannel among the plurality of subchannels to a first UE having the highest priority. Subsequently, the communication system determines whether to allocate additional power to the at least one subchannel based on the plurality of subchannel state prediction parameter values, and allocates additional power to a subchannel that needs the additional power among the at least one subchannel.

Abstract: A crystallization mask for laser illumination for converting amorphous silicon into polysilicon is provided, which includes: a plurality of transmissive areas having a plurality of first slits for adjusting energy of the laser illumination passing through the mask; and an opaque area.

Abstract: The present invention relates to a thin film transistor and a liquid crystal display. A gate electrode is formed to include at least one portion extending in a direction perpendicular to a gain growing direction in order to make electrical charge mobility of TFTs uniform without increasing the size of the driving circuit. A thin film transistor according to the present invention includes a semiconductor pattern a thin film of poly-crystalline silicon containing grown grains on the insulating substrate. The semiconductor pattern includes a channel region and source and drain regions opposite with respect to the channel region. A gate insulating layer covers the semiconductor pattern. On the gate insulating layer, a gate electrode including at least one portion extending in a direction crossing the growing direction of the grains and overlapping the channel region is formed.

Abstract: A mask for forming polysilicon has a first slit region where a plurality of horizontal slit patterns are arranged in the vertical direction while bearing the same width, a second slit region where a plurality of horizontal slit patterns are arranged in the vertical direction while bearing the same width, a third slit region where a plurality of horizontal slit patterns are arranged in the vertical direction while bearing the same width, and a fourth slit region where a plurality of horizontal slit patterns are arranged in the vertical direction while bearing the same width. The slit patterns arranged at the first to fourth slit regions are sequentially enlarged in width in the horizontal direction in multiple proportion to the width d of the slit pattern at the first slit region. The centers of the slit patterns arranged at the first to fourth slit regions in the horizontal direction are placed at the same line.

Abstract: The present invention relates to a thin film transistor and a liquid crystal display. A gate electrode is formed to include at least one portion extending in a direction perpendicular to a gain growing direction in order to make electrical charge mobility of TFTs uniform without increasing the size of the driving circuit. A thin film transistor according to the present invention includes a semiconductor pattern a thin film of poly-crystalline silicon containing grown grains on the insulating substrate. The semiconductor pattern includes a channel region and source and drain regions opposite with respect to the channel region. A gate insulating layer covers the semiconductor pattern. On the gate insulating layer, a gate electrode including at least one portion extending in a direction crossing the growing direction of the grains and overlapping the channel region is formed.

Abstract: A plurality laser beams generated by a plurality of beam generators are synthesized by a beam synthesizer. The synthesized beam is splitted into a plurality of beamlets and provided for a plurality of optical units controlling the beamlets. Each beamlet controlled by each optical unit is illuminated onto an amorphous silicon layer deposited on a substrate that is mounted on a plurality of stages to be polycrystallized.

Abstract: A crystallization mask for laser illumination for converting amorphous silicon into polysilicon is provided, which includes: a plurality of transmissive areas having a plurality of first slits for adjusting energy of the laser illumination passing through the mask; and an opaque area.

Abstract: A thin film transistor array panel is provided, which includes: a substrate including a plurality of pixel areas; a semiconductor layer formed on the substrate and including a plurality of pairs of first and second semiconductor portions in respective pixel areas; a first insulating layer formed on the semiconductor layer; a gate wire formed on the first insulating layer; a second insulating layer formed on the gate wire; a data wire formed on the second insulating layer; a third insulating layer formed on the data wire; a pixel electrode formed on the third insulating layer and connected to the data wire, wherein width and length of at least one of the first and the second semiconductor portions vary between at least two pixel areas.

Abstract: A silicon crystallization system includes a beam generator generating a laser beam, first and second optical units for controlling the laser beam from the beam generator; and a stage for mounting a panel including an amorphous silicon layer to be polycrystallized by the laser beam from the optical units. The first optical unit makes the laser beam have a transverse edge and a longitudinal edge longer than the transverse edge, and the second optical unit makes the laser beam have a transverse edge and a longitudinal edge shorter than the transverse edge.

Abstract: A device for irradiating a laser beam onto an amorphous silicon thin film formed on a substrate. The device includes: a stage mounting the substrate; a laser oscillator for generating a laser beam; a projection lens for focusing and guiding the laser beam onto the thin film; a reflector for reflecting the laser beam guided onto the thin film; a controller for controlling a position of the reflector, and an absorber for absorbing the laser beam reflected by the reflector.

Abstract: A thin film transistor array panel is provided, which includes: a substrate including a plurality of pixel areas; a semiconductor layer formed on the substrate and including a plurality of pairs of first and second semiconductor portions in respective pixel areas; a first insulating layer formed on the semiconductor layer; a gate wire formed on the first insulating layer; a second insulating layer formed on the gate wire; a data wire formed on the second insulating layer; a third insulating layer formed on the data wire; a pixel electrode formed on the third insulating layer and connected to the data wire, wherein width and length of at least one of the first and the second semiconductor portions vary between at least two pixel areas.

Abstract: In a method of manufacturing a thin film transistor according to the present invention, an amorphous silicon thin film is firstly formed on an insulating substrate and a planarization layer is formed thereon. Thereafter, the amorphous silicon thin film is crystallized by a solidification process using a laser-irradiation to form a polysilicon thin film. Next, the polysilicon thin film and the planarization layer are patterned to form a semiconductor layer, and a gate insulating layer covering the semiconductor layer is formed. Then, a gate electrode is formed on the gate insulating layer opposite the semiconductor layer. Next, impurities are implanted into the semiconductor layer to form a source region and a drain region opposite each other with respect to the gate electrode, and a source electrode and a drain electrode electrically connected to the source region and the drain region, respectively, are formed.

Abstract: An analog buffer, display device having the same and a method of drving the same are provided. The analog buffer applies an analog voltage to a load. The analog buffer includes a comparator and a transistor. The comparator is configured to compare an input voltage provided from an external device with the analog voltage applied to the load. The transistor is turned on to electrically charge the load when the analog voltage is lower than the input voltage or turned on to electrically discharge the load when the analog voltage is higher than the input voltage, and turned off when the analog voltage becomes substantially the same as the input voltage.

Abstract: According to the present invention, a flat panel display is provided, which includes a display panel where a plurality of pixels are formed. One pixel includes a first and a second signal lines extending in any one direction and a pixel circuit connected to the first and the second signal lines, and the first and the second signal lines intersect with each other. The pixel circuit includes a plurality of storages, a plurality of first and second switching elements connected to the storages, respectively, and a display cell. The storages store data transmitted through the first signal during predetermined time. The first switching elements send data transmitted through the first signal line to the respective storages in response to a signal transmitted through the second signal line. The second switching elements are sequentially driven during one frame to transmit the data stored in the storages to the display cell. The display cell displays image of the pixel according to the data stored in the storages.

Abstract: A method of manufacturing a thin film transistor array panel is provided, which includes: depositing an amorphous silicon layer on an insulating substrate; converting the amorphous silicon layer to a polysilicon layer by a plurality of laser shots using a mask; forming a gate insulating layer on the polysilicon layer; forming a plurality of gate lines on the gate insulating layer; forming a first interlayer insulating layer on the gate lines; forming a plurality of data lines on the first interlayer insulating layer; forming a second interlayer insulating layer on the data lines; and forming a plurality of pixel electrodes on the second interlayer insulating layer, wherein the mask comprises a plurality of transmitting areas and a plurality of blocking areas arranged in a mixed manner.

Abstract: A crystallization mask for laser illumination for converting amorphous silicon into polysilicon is provided, which includes: a plurality of transmissive areas having a plurality of first slits for adjusting energy of the laser illumination passing through the mask; and an opaque area.

Abstract: A method of manufacturing a thin film transistor array panel is provided, which includes: depositing an amorphous silicon layer on an insulating substrate; converting the amorphous silicon layer to a polysilicon layer by a plurality of laser shots using a mask; forming a gate insulating layer on the polysilicon layer; forming a plurality of gate lines on the gate insulating layer; forming a first interlayer insulating layer on the gate lines; forming a plurality of data lines on the first interlayer insulating layer; forming a second interlayer insulating layer on the data lines; and forming a plurality of pixel electrodes on the second interlayer insulating layer, wherein the mask comprises a plurality of transmitting areas and a plurality of blocking areas arranged in a mixed manner.