摘要:
A display panel includes a gate line dividing a pixel region into a first region and a second region and including a gate electrode, a data line crossing the gate line and including a source electrode, a thin film transistor connected to the gate line and the data line and including the gate electrode, the source electrode, and a drain electrode facing the source electrode, a protective layer disposed on the thin film transistor and comprising a first contact hole and a second contact hole, and first and second sub-pixel electrodes disposed on the first and second regions of the divided pixel region, respectively. The drain electrode is directly connected to the first sub-pixel electrode through the first contact hole, and the drain electrode is directly connected to the second sub-pixel electrode through the second contact hole.
摘要:
The present invention relates to a method for compensating voltage drop of a display device, a system for voltage drop compensation, and a display device including the same. A method for compensating a voltage drop of a display device including a display panel, a maximum compensation voltage table MLEC LUT for voltage compensation when a voltage drop is a maximum in the display panel, and a voltage drop coefficient table LEC LUT representing voltage drop coefficients with respect to total output currents during one frame according to an embodiment of the present invention comprises: receiving an input image signal; gamma-converting the input image signal to obtain a pre-compensation data voltage; obtaining a first total output current flowing in all pixels PX of the display panel during one frame based on the input image signal; obtaining a first voltage drop compensation voltage V_LEC based on the voltage drop coefficient table LEC LUT and the maximum compensation voltage table MLEC LUT; and adding the first voltage drop compensation voltage V_LEC to the pre-compensation data voltage to obtain the post-compensation data voltage.
摘要:
An automatic gain control apparatus and method of a mobile station in an OFDM system are provided. The method includes identifying a preamble section and a data symbol section in a received frame signal; when a current symbol is the preamble section, measuring a power value of a preamble signal, comparing the measured power value of the preamble signal and a threshold value, and amplifying the received frame signal based on a predetermined gain; when a data symbol section includes a pilot carrier, measuring an average power value of the pilot carrier in the data symbol, comparing the measured average power value and the threshold value, and amplifying the received frame signal based on a predetermined gain; and when the data symbol section includes no pilot carrier, maintaining an existing gain, or performing an automatic gain control operation according to a gain estimated by using the pilot carrier during the data symbol section.
摘要:
An organic light-emitting display device preventing edge defects between a pixel define layer and a pixel electrode, and a method of manufacturing the same. The organic light-emitting display device, comprises: a substrate; a pixel electrode disposed on the substrate and comprising a first pattern unit and a second pattern unit which are electrically disconnected; a pixel define unit disposed on the substrate and exposing the pixel electrode; an intermediate layer disposed on the pixel electrode and emitting light; and a counter electrode disposed on the intermediate layer and the pixel define layer.
摘要:
A printing method and a printer for implementing the printing method are disclosed. When a printhead including a first end and a second end sequentially prints a first area and a second area which are adjacent to each other, the method comprises performing printing by means of the printer by relatively moving locations of the printhead and a print object in such a way that a surface printed by the second end in the first area and a surface printed by the second end in the second area face each other. The printhead rotates around a rotational axis comprising at least one point on the printhead, one end of the printhead, a center of the printhead, or both ends of the printhead.
摘要:
An organic light emitting display device includes at least one thin film transistor (TFT) on a substrate, the at least one TFT including a semiconductor active layer, a gate electrode insulated from the semiconductor active layer, and source and drain electrodes contacting the semiconductor active layer, a plurality of first electrodes electrically connected to the at least one TFT, a plurality of banks between the plurality of first electrodes, a plurality of organic layers on respective first electrodes, a plurality of second electrodes on respective organic layers, the second electrodes being separated from each other, and a connection electrode on the plurality of banks and the plurality of second electrodes, the connection electrode being electrically connected to the plurality of the second electrodes.
摘要:
A tape feeder including an electronic component accommodating part installed at one side of a tape feeder main body to accommodate electronic components which are not picked up by a suction nozzle of an electronic component conveyance robot installed at an electronic component mounting device, thereby preventing the electronic components from clogging a carrier tape moving path, and storing the electronic components in the electronic component accommodating part. Therefore, it is possible to increase efficiency of equipment without operational delay and stoppage of the equipment, readily extract and reuse the electronic components accommodated in the electronic component accommodating part, and keep an operational environment clean.
摘要:
A MAC address-based communication restricting method is disclosed. In the MAC address-based communication restricting method, packet data is received upon request of communication through an Ethernet switch, a MAC destination address and a MAC source address of the received packet data are read, it is determined whether access vectors of the MAC addresses are present in an address entry table, and access is denied if the access vectors (security keys) of the MAC destination and source addresses are not matched.
摘要:
An LCD apparatus is provided. The LCD apparatus includes lamps for generating a first light, a diffusing member, and a receiving member. The diffusing member diffuses the first light from the lamps and reflected light to emit a second light having uniform brightness distribution. The LCD apparatus also includes an LCD panel receiving the second light and displaying images in response to the second light by use of liquid crystal, and a top chassis combined to the receiving member to secure the LCD panel onto the receiving member. The distances between the respective lamps and the diffusing member vary in association with positions of the respective lamps such that the closer to a central portion of the diffusing member a lamp is placed, the shorter a distance between the lamp and the diffusing member.
摘要:
The present invention relates to a method for estimating a timing error and a frequency offset in a high-speed portable Internet system and a method thereof. A predetermined preamble symbol is added to an OFDM frame to be transmitted by a transmitter according to an exemplary embodiment of the present invention, an IFFT operation is performed, and then a pseudo noise is multiplexed by the preamble symbol to estimate the timing error and the frequency offset. A receiver receives an OFDM symbol, extracts the preamble symbol from the OFDM symbol, and multiplexes the extracted preamble symbol by a local pseudo noise, which is equal to the pseudo noise used by the transmitter but is shifted.