Patent application number | Description | Published |
20110097857 | ARRAY SUBSTRATE FOR LIQUID CRYSTAL DISPLAY DEVICE AND METHOD OF FABRICATING THE SAME - An array substrate for a liquid crystal display device includes a gate line and a data line crossing each other on a substrate to define a pixel region, an insulating layer between the gate line and the data line, a gate electrode extending from the gate line, and a transistor in the pixel region having an active layer on the insulating layer, ohmic contact layers of a first material that are adjacent to ends of the active layer, buffer layers of a second material, which is different from the first material, on the ohmic contact layers, a source electrode contacting one of the buffer layers and a drain electrode contacting another one of the buffer layers, wherein the active layer is in an island shape over the gate electrode and within a boundary defined by a perimeter of the gate electrode. | 04-28-2011 |
20110171793 | LIQUID CRYSTAL DISPLAY DEVICE AND FABRICATION METHOD THEREOF - A method for fabricating a display includes providing a first substrate divided into a pixel part and first and second pad parts, forming a gate electrode and a gate line in the pixel part of the first substrate and forming a gate pad line in the first pad part of the first substrate, forming a first insulation film and a semiconductor film over the gate electrode, the gate line and the gate pad line, forming an active pattern over the gate electrode from the semiconductor film with the first insulation film interposed therebetween and forming a contact hole exposing a portion of the gate pad line using a single mask, forming source and drain electrodes in the pixel part, forming a pixel electrode in the pixel part, forming a gate pad electrode electrically connected with the gate pad line via the contact hole, forming a second insulation film over the pixel electrode and the gate pad electrode, exposing a portion of the pixel electrode and at least one portion of the gate pad electrode, and attaching the first substrate and a second substrate. | 07-14-2011 |
20110212581 | ARRAY SUBSTRATE FOR LIQUID CRYSTAL DISPLAY DEVICE AND METHOD OF FABRICATING THE SAME - An array substrate for a liquid crystal display device comprises a substrate having a pixel region, a gate line on the substrate, and a data line crossing the gate line to define the pixel region. A thin film transistor (TFT) includes a gate electrode connected to the gate line, an insulating layer on the gate electrode, an active layer on the insulating layer, an ohmic contact layer on the active layer, a source electrode connected to the data line and a drain electrode spaced apart from the source electrode. A pixel electrode connects to the drain electrode and is disposed in the pixel region. An opaque metal pattern is provided on end portions of the pixel electrode. | 09-01-2011 |
Patent application number | Description | Published |
20090146724 | SWITCHING CIRCUIT FOR MILLIMETER WAVEBAND CONTROL CIRCUIT - Provided is a switching circuit for a millimeter waveband control circuit. The switching circuit for a millimeter waveband control circuit includes a switching cell disposed on a signal port path to match an interested frequency and including at least one transistor coupled vertically to an input/output transmission line and a plurality of ground via holes disposed symmetrically in an upper portion and a lower portion of the input/output transmission line; capacitors for stabilizing a bias of the switching cell; and bias pads coupled in parallel to the capacitor to control the switching cell. Therefore, the switching circuit may be useful to improve its isolation by simplifying its design and layout through the use of symmetrical structure of optimized switching cells without the separate use of different switch elements, and also to reduce its manufacturing cost through the improved yield of the manufacturing process and the enhanced integration since it is possible to reduce a chip size of an integrated circuit in addition to its low insertion loss. | 06-11-2009 |
20100133551 | HIGH-SPEED OPTICAL INTERCONNECTION DEVICE - Provided is a high-speed optical interconnection device. The high-speed optical interconnection device includes a first semiconductor chip, light emitters, optical detectors, and a second semiconductor chip, which are disposed on a silicon-on-insulator (SOI) substrate. The light emitters receive electrical signals from the first semiconductor chip to output optical signals. The optical detectors detect the optical signals to convert the optical signals into electrical signals. The second semiconductor chip receives the electrical signals converted by the optical detectors. | 06-03-2010 |
20110037521 | POWER AMPLIFIER HAVING DEPLETION MODE HIGH ELECTRON MOBILITY TRANSISTOR - Provided is a power amplifier including: a depletion mode high electron mobility transistor (D-mode HEMT) configured to amplify a signal inputted to a gate terminal and output the amplified signal through a drain terminal; an input matching circuit configured to serially ground the gate terminal; and a DC bias circuit connected between the drain terminal and a ground. Through the foregoing configuration, the HEMT may be biased only by a single DC bias circuit without any biasing means to provide a negative voltage. Also, superior matching characteristic may be provided in various operation frequency bands through a shunt inductor and a choke inductor. | 02-17-2011 |
20110057853 | PATCH ANTENNA WITH WIDE BANDWIDTH AT MILLIMETER WAVE BAND - Provided is a millimeter wave band patch antenna. The patch antenna includes a multi-layer substrate, at least one metal pattern layer, an antenna patch, a ground layer, and a plurality of vias. In the multi-layer substrate, a plurality of dielectric layers are stacked. The metal pattern layer is disposed between the dielectric layers except for a center region of the multi-layer substrate. The antenna patch is disposed on an upper surface of the multi-layer substrate in the center region. The ground layer is disposed on a lower surface of the multi-layer substrate opposing to the upper surface. The vias is disposed around the center region through the dielectric layers for electrically connecting the metal pattern layer to the ground layer. The center region, which is surrounded by the ground layer and the vias, functions as a resonator. | 03-10-2011 |
20120007781 | ANTENNA MODULE - There is provided an antenna module. The antenna module according to the present invention may include a patch antenna resonator formed on a surface of a dielectric substrate; and a surface wave-radiation resonator disposed to be separated from the patch antenna resonator, and formed to surround the patch antenna resonator so that signals from the patch antenna resonator are radiated. In this instance, the signals may flow on the surface of the dielectric substrate. | 01-12-2012 |
20120092219 | ANTENNA STRUCTURE USING MULTILAYERED SUBSTRATE - Disclosed is an antenna structure using a multilayered substrate, including: a multilayered substrate having a multilayered structure; a dielectric resonator formed in the multilayered substrate; a metal surface formed on the top surface of the multilayered substrate except for an upper area of the dielectric resonator; a ground surface formed on a layer border where the bottom surface of dielectric resonator is positioned in the multilayered substrate and including at least one aperture; and a feed line formed on the bottom surface of the multilayered substrate and transferring energy through the aperture. | 04-19-2012 |
20120235857 | RADAR APPARATUS SUPPORTING SHORT AND LONG RANGE RADAR OPERATION - Disclosed is a radar apparatus supporting short range and long range radar operations, wherein a plurality of short range transmitting chirp signals and a plurality of long range transmitting chirp signals are generated by a predetermined modulation scheme and is transmitted to an object through at least one transmitting array antenna and signals reflected from the object is received through at least one receiving array antenna, and the plurality of long range transmitting chirp signals have transmission power larger than that for the plurality of short range transmitting chirp signals. | 09-20-2012 |
20120287008 | ANTENNA - An antenna includes: a dielectric resonator surrounded by a via fence within a multilayered substrate; a patch antenna formed on an opening surface of the dielectric resonator; a coupling aperture formed on an internal ground surface within the multilayered substrate; and a feeding line for transferring a signal applied from the outside. | 11-15-2012 |
20130292689 | WAFER LEVEL PACKAGED GAN POWER SEMICONDUCTOR DEVICE AND THE MANUFACTURING METHOD THEREOF - Disclosed are a GaN (gallium nitride) compound power semiconductor device and a manufacturing method thereof. The gallium nitride compound power semiconductor device includes: a gallium nitride compound element formed by being grown on a wafer; a contact pad including a source, a drain, and a gate connecting with the gallium nitride compound element; a module substrate to which the nitride gallium compound element is flip-chip bonded; a bonding pad formed on the module substrate; and a bump formed on the bonding pad of the module substrate so that the contact pad and the bonding pad are flip-chip bonded. By this configuration, it is possible to reduce the process costs by forming the bump on the substrate based on the wafer level, rapidly emit the heat generated from an AlGaN HEMT device by forming the sub source contact pad and the sub drain contact pad of the substrate in the active region, and efficiently emit the heat generated from the AlGaN HEMT device by forming a via hole on the substrate and filling the via hole with the conductive metal. | 11-07-2013 |
Patent application number | Description | Published |
20080266248 | COORDINATE INFORMATION PROVIDING METHOD AND VIDEO APPARATUS THEREOF - A method for providing coordinate information to an external device and a video apparatus thereof. The coordinate information providing method includes receiving coordinate information input by a user from an input device; and transmitting a coordinate information delivery message containing the coordinate information input through the input device, to an external device connected according to a High Definition Multimedia Interface (HDMI) Consumer Electronics Control (CEC) specification. Accordingly, the video apparatus can control the external device by transferring the coordinate information to the external device. | 10-30-2008 |
20080266455 | INACTIVE INFORMATION PROVIDING METHOD AND VIDEO APPARATUS THEREOF - An inactive information providing method of a video apparatus includes, in an inactive mode, generating an inactive message which provides notification of the inactive mode; and transmitting the inactive message to an external device connected according to a High Definition Multimedia Interface (HDMI) Consumer Electronics Control (CEC) specification. | 10-30-2008 |
20080270636 | METHOD FOR MANAGING LOGICAL ADDRESS AND DEVICE THEREOF - An address management method and a device thereof are provided. The address management method includes determining by a device whether all logical addresses corresponding to a type of the device are currently being used by external devices; setting by the device a non-use logical address as a logical address of the device, if it is determined that one of the logical addresses is currently not in use; and setting by the device a predetermined logical address as a logical address of the device, if it is determined that all the logical addresses are currently being used. Therefore, logical addresses may be allocated to a device even if all logical addresses corresponding the type of the device are currently being used. | 10-30-2008 |
20080271073 | METHOD OF PROVIDING KEY CODE INFORMATION AND VIDEO DEVICE THEREOF - A method of providing key code information of an external device and a video device thereof are provided. The method of providing key code information includes transmitting a message for requesting supportable key code information of a connected external device, and receiving a response message regarding the supportable key code information from the external device in response to the request message. Accordingly, the video device can provide the key code information supported by the external device to a user. | 10-30-2008 |
20080281995 | ADDRESS MANAGEMENT METHOD AND VIDEO APPARATUS USING THE SAME - An address management method and a video apparatus using the same are provided. The address management method includes determining whether an external device is connected or not; when determining the connection to the external device, generating an invalidation message for invalidating an address; and transmitting the generated invalidation message to the external device. Accordingly, when the port connection is changed, the physical address can be correctly updated by invalidating the former physical address. | 11-13-2008 |
20080291324 | PACKET GENERATING METHOD IN WIRELESS HDMI CEC - A packet generating method in a wireless High Definition Multimedia Interface (HDMI) environment includes generating a packet which includes either AV data or control data in a payload and a field indicative of a packet type in a header according to a HDMI environment; and transmitting the generated packet. Accordingly, the AV data and the control data can be transceived over the single channel in the HDMI. | 11-27-2008 |
20090147137 | METHOD FOR PROVIDING INFORMATION ON TYPE OF IMAGE APPARATUS AND IMAGE APPARATUS ADOPTING THE SAME - A method for providing information on types of image apparatus being used and an image apparatus adopting the same are provided. The method for providing information on the types of image apparatus being used includes transmitting a request message to external devices inquiring whether or not the external device which is connected using a high definition multimedia interface consumer electronics control (HDMI CEC) standard is a device of a particular type, and receiving from the external devices a response message answering whether or not the external device is a device of the particular type, in response to the request message. Accordingly, information on the type of connected external devices is obtained, and a list of external devices or a menu of external devices is provided according to the obtained type to the user so that the user can use the image apparatus more conveniently. | 06-11-2009 |