Patent application number | Description | Published |
20080199788 | MANUFACTURING METHOD OF THIN FILM TRANSISTOR ARRAY PANEL USING AN OPTICAL MASK - A photo mask is provided. The mask includes: a transmitting area and a translucent area, wherein the translucent area includes a plurality of light blocking portions blocking light, and wherein the light blocking portions have a plurality of areas blocking different amounts of light. By using this type of photo mask, a substantially flat layer of photoresist film can be deposited even on top of an uneven surface. The flat photoresist film reduces processing cost and enhances the reliability of the panel manufacturing process. | 08-21-2008 |
20080239188 | DISPLAY SUBSTRATE, LIQUID CRYSTAL DISPLAY DEVICE HAVING THE SAME AND METHOD OF MANUFACTURING THE SAME - A display substrate includes a base substrate, a thin-film transistor (TFT), a pixel electrode, a pad part, and a cell-gap compensating part. The base substrate has a display region, a seal region surrounding the display region, and a peripheral region surrounding the seal region. The TFT is in the display region. The pixel electrode is connected to a drain electrode of the TFT and contacts the base substrate. The pad part is interposed between a first side of the base substrate and the seal region and is connected to the TFT through a first transmission line. The cell-gap compensating part is in the seal region and includes a compensating pattern adjacent to a second side of the base substrate and an insulating pattern on the compensating pattern. | 10-02-2008 |
20080239226 | LIQUID CRYSTAL DISPLAY - A liquid crystal display is provided with a control pattern to allow liquid crystal and a sealing agent to desirably flow during a liquid crystal injection process. The liquid crystal display includes an insulating substrate, a plurality of thin film transistors formed on the insulating substrate, a liquid crystal injection opening formed in a portion outside a region where the plurality of thin film transistors is formed, a first display panel including a plurality of control patterns formed in the liquid crystal injection opening, and a second display panel disposed to face the first display panel. | 10-02-2008 |
20080268581 | Method of manufacturing thin film transistor substrate - A method of manufacturing a TFT substrate includes: sequentially forming a transparent conductive layer and an opaque conductive layer on a substrate, patterning the transparent conductive layer and the opaque conductive layer by using a first mask to form a gate pattern including a pixel electrode, and forming a gate insulating layer and a semiconductor layer above the substrate. A contact hole is formed which exposes a portion of the pixel electrode and a semiconductor pattern using a second mask. A conductive layer is formed above the substrate and patterned to form a source/drain pattern including a drain electrode which overlaps a portion of the pixel electrode. Portions of the gate insulating layer and the opaque conductive layer above the pixel electrode are removed except a portion overlapping the drain electrode, by using a third mask. | 10-30-2008 |
20090152554 | THIN FILM TRANSISTOR, DISPLAY DEVICE INCLUDING THE SAME AND MANUFACTURING METHOD THEREOF - A thin film transistor, a display device, and a manufacturing method thereof. The thin film transistor includes a control electrode, a semiconductor overlapping the control electrode, and an input electrode and an output electrode disposed on or under the semiconductor and opposite to each other. The semiconductor includes a first portion disposed between the input electrode and the output electrode and having a first crystallinity, and a second portion connected with the first portion, which overlaps the input electrode or the output electrode, and having a second crystallinity. The first crystallinity is higher than the second crystallinity. | 06-18-2009 |
20090174690 | THIN FILM TRANSISTOR, DISPLAY DEVICE INCLUDING THE SAME, AND METHOD FOR MANUFACTURING THE SAME - A display device and a manufacturing method thereof, include a first thin film transistor including a first control electrode, a first semiconductor disposed on the first control electrode, and a first input electrode and a first output electrode opposite to each other on the first semiconductor; and a second thin film transistor including a second control electrode, a second semiconductor disposed on the second control electrode, and a second input electrode and a second output electrode opposite to each other on the second semiconductor, wherein the first semiconductor includes a first lower semiconductor including polysilicon, and a first upper semiconductor disposed on the first lower semiconductor, the first upper semiconductor including amorphous silicon. | 07-09-2009 |
20090231522 | LIQUID CRYSTAL DISPLAY PANEL AND METHOD FOR MANUFACTURING THE SAME - Embodiments of a liquid crystal display panel include a first substrate, a second substrate and a liquid crystal layer interposed between the first substrate and the second substrate. The first substrate may include a color filter layer covering a thin-film transistor and having a recess portion. The second substrate may include a first spacer making contact with the first substrate and a second spacer disposed at a position corresponding to the recess portion of the color filter layer to be separated from the first substrate. The first substrate may further include a protrusion pattern formed under the recess portion of the color filter layer. The second spacer may be correspondingly disposed at a position where the recess portion and the protrusion pattern are formed. | 09-17-2009 |
20090272980 | THIN FILM TRANSISTOR ARRAY PANEL AND MANUFACTURING METHOD OF THE SAME - A semiconductor including a channel, a data line including a source electrode, a drain electrode, and a pixel area definition member is formed on a gate insulating layer, and a passivation layer is deposited on the data line, the pixel area definition member, and the channel of the semiconductor. A first photosensitive film pattern including a first portion disposed at a position corresponding to the drain electrode and a second portion that is thicker than the first portion, and exposing the passivation layer at a position corresponding to the pixel area definition member, is formed on the passivation layer, the passivation layer that is exposed by using the first photosensitive film pattern as an etch mask is etched, and a second photosensitive film pattern is formed by etching the whole surface of the first photosensitive film pattern to remove the first portion. The pixel area definition member exposed by the passivation layer is etched, and the passivation layer exposed by the removal of the first portion and the semiconductor exposed by the removal of the pixel area definition member are etched. A conductor layer for a pixel electrode is formed, and the second photosensitive film pattern is removed to form the pixel electrode. | 11-05-2009 |
20100001275 | THIN-FILM TRANSISTOR SUBSTRATE AND METHOD OF FABRICATING THE SAME - A thin-film transistor (“TFT”) substrate and a method of fabricating the same include: an insulating substrate; gate wiring which is disposed on the insulating substrate and includes a gate line and a gate electrode; a semiconductor pattern which is disposed on the gate electrode; data wiring which is disposed on the semiconductor pattern and includes a data line, a source electrode, and a drain electrode; a passivation layer which includes a first sub-passivation layer and a second sub-passivation layer deposited on the data wiring; and a pixel electrode which is electrically connected to the drain electrode through a contact hole disposed in the passivation layer, wherein the second sub-passivation layer has a lower density than the first sub-passivation layer. | 01-07-2010 |
20100001277 | THIN FILM TRANSISTOR ARRAY AND METHOD OF MANUFACTURING THE SAME - A method of manufacturing a thin film transistor array substrate includes: forming a gate pattern on a substrate; forming a first gate insulating film and a second gate insulating film on the substrate; forming a source/drain pattern and a semiconductor pattern on the substrate; forming a passivation film on the substrate; forming a photo-resist pattern on the passivation film; patterning the passivation film using the photo-resist pattern to form a passivation film pattern, the patterning of the passivation film including over-etching the passivation film to form an open region in the passivation film; forming a transparent electrode film on the substrate; removing the photo-resist pattern and a portion of the transparent electrode film on the photo-resist pattern; and forming a pixel electrode on the first gate insulating layer. | 01-07-2010 |
20100002172 | LIQUID CRYSTAL DISPLAY INCLUDING COLOR FILTERS, AND MANUFACTURING METHOD THEREOF - A liquid crystal display includes a first display panel including a first substrate, and first and second color filters disposed on the first substrate and adjacent to each other, a second display panel including a second substrate facing the first display panel and a first spacer disposed on the second substrate, and a liquid crystal layer disposed between the first and second display panels. The first color filter includes a first protrusion protruded toward and overlapped with the second color filter. The first spacer faces the first protrusion, and the first and second display panels contact each other at a location area of the first spacer. | 01-07-2010 |
20100006844 | THIN-FILM TRANSISTOR ARRAY PANEL AND METHOD OF FABRICATING THE SAME - A thin-film transistor (“TFT”) array and a method of fabricating the TFT array panel include: an insulating substrate; a gate line and a data line which are insulated from each other on the insulating substrate and are arranged in a lattice; common wiring extended parallel to the gate line on the insulating substrate; a gate insulating film disposed on the gate line and the common wiring; a semiconductor layer disposed on the gate insulating film; contact holes which penetrate through the gate insulating film and the semiconductor layer disposed on the common wiring; a plurality of common electrodes connected to the common wiring by the contact holes and arranged parallel to each other; and a plurality of pixel electrodes arranged parallel to the plurality of common electrodes. | 01-14-2010 |
20100084658 | DISPLAY SUBSTRATE AND METHOD OF MANUFACTURING THE SAME - A display substrate having a low-resistance metallic layer and a method of manufacturing the display substrate. The gate conductors are extended in a first direction. The source conductors are extended in a second direction crossing the first direction including a lower layer of molybdenum or a molybdenum alloy, and an upper layer of aluminum or an aluminum alloy. The pixel areas are defined by the gate conductors and the source conductors. A switching element is formed in each of the pixel areas and includes a gate electrode extended from the gate conductor and a source electrode extended from the source conductor. The pixel electrode includes a transparent conductive material, and is electrically connected to a drain electrode of the switching element. | 04-08-2010 |
20100230679 | CONTACT PORTION OF WIRE AND MANUFACTURING METHOD THEREOF - A contact portion of wiring and a method of manufacturing the same are disclosed. A contact portion of wiring according to an embodiment includes: a substrate; a conductive layer disposed on the substrate; an interlayer insulating layer disposed on the conductive layer and having a contact hole; a metal layer disposed on the conductive layer and filling the contact hole; and a transparent electrode disposed on the interlayer insulating layer and connected to the metal layer, wherein the interlayer insulating layer includes a lower insulating layer and an upper insulating layer disposed on the lower insulating layer, the lower insulating layer is undercut at the contact hole, and the metal layer fills in the portion where the lower insulating layer is undercut. | 09-16-2010 |
20100264417 | THIN-FILM TREANSISTOR ARRAY PANEL AND METHOD OF FABRICATING THE SAME - A thin-film transistor array panel and a manufacturing method thereof are provided for one or more embodiments. The thin-film transistor array panel may include: a substrate; a gate electrode formed on the substrate; a gate insulating layer formed on the gate electrode; a source electrode and a drain electrode formed on the gate insulating layer; and a flatness layer formed on the source electrode and the drain electrode, wherein the drain electrode has a higher height than the flatness layer. | 10-21-2010 |
20100283932 | DISPLAY SUBSTRATE AND METHOD OF MANUFACTURING THE SAME - A display substrate includes a first metal pattern, a first insulating layer, a first electrode, and a second metal pattern. The first metal pattern includes a gate line and a signal line. The first insulating layer is disposed on a substrate having the first metal pattern formed thereon. A first opening passes through the first insulating layer to partially expose the signal line. The first electrode is disposed on the first insulating layer corresponding to a unit pixel. The second metal pattern includes a connection electrode contacting the first electrode and the signal line through the first opening and a data line. | 11-11-2010 |
20110065220 | THIN FILM TRANSISTOR ARRAY PANEL AND METHOD FOR MANUFACTURING THE SAME - The present invention provides a thin film transistor array panel comprising: an insulating substrate; a gate line formed on the insulating substrate and having a gate electrode; a gate insulating layer formed on the gate line; a semiconductor formed on the gate insulating layer and overlapping the gate electrode; diffusion barriers formed on the semiconductor and containing nitrogen; a data line crossing the gate line and having a source electrode partially contacting the diffusion barriers; a drain electrode partially contacting the diffusion barriers and facing the source electrode on the gate electrode; and a pixel electrode electrically connected to the drain electrode. | 03-17-2011 |
20110133198 | THIN FILM TRANSISTOR, DISPLAY DEVICE INCLUDING THE SAME AND MANUFACTURING METHOD THEREOF - A thin film transistor, a display device, and a manufacturing method thereof. The thin film transistor includes a control electrode, a semiconductor overlapping the control electrode, and an input electrode and an output electrode disposed on or under the semiconductor and opposite to each other. The semiconductor includes a first portion disposed between the input electrode and the output electrode and having a first crystallinity, and a second portion connected with the first portion, which overlaps the input electrode or the output electrode, and having a second crystallinity. The first crystallinity is higher than the second crystallinity. | 06-09-2011 |
20110240987 | THIN FILM TRANSISTOR, AND METHOD OF MANUFACTURING THE SAME - A thin film transistor and a method of manufacturing the same are provided. The thin film transistor includes a first gate electrode and an active layer including a crystalline oxide semiconductor which is insulated from the first gate electrode by a first insulating layer and the active layer is arranged to overlap the first gate electrode. A source electrode is formed including at least a portion overlaps the active layer, and a drain electrode is arranged being spaced apart from the source electrode and at least a portion of the drain electrode overlaps the active layer, wherein the source electrode and the drain electrode are insulated from the first gate electrode by the first insulating layer. | 10-06-2011 |
20110261040 | INFORMATION DETECTION DISPLAY - An information detection device includes: a plurality of light sensing units each configured to detect light; a plurality of sensor scanning drivers each configured to apply sensor scanning signals to the light sensing units; a sensing signal processor configured to receive position information detected by the light sensing units; a plurality of bias applying units each configured to apply bias voltages to the light sensing units; wherein each bias applying unit applies a different polarity of bias voltage. | 10-27-2011 |
20120091461 | THIN FILM TRANSISTOR SUBSTRATE AND METHOD OF MANUFACTURING THE SAME - A thin film transistor display substrate and a method of manufacturing the same are provided. The thin film transistor substrate includes a gate electrode formed on a display substrate, an active layer formed on the gate electrode to overlap with the gate electrode and including polycrystalline silicon, a first ohmic contact layer formed on the active layer, a second ohmic contact layer formed on the first ohmic contact layer, and a source electrode and a drain electrode each formed on the second ohmic contact layer. | 04-19-2012 |
20120112181 | OXIDE SEMICONDUCTOR, THIN FILM TRANSISTOR INCLUDING THE SAME AND THIN FILM TRANSISTOR DISPLAY PANEL INCLUDING THE SAME - An oxide semiconductor including: (A) at least one element of zinc (Zn) and tin (Sn); and (B) at least one element of arsenic (As), antimony (Sb), chromium (Cr), cerium (Ce), tantalum (Ta), neodymium (Nd), niobium (Nb), scandium (Sc), yttrium (Y), and hafnium (Hf), is provided. | 05-10-2012 |
20120114085 | CHANNEL ESTIMATION METHOD AND APPARATUS - A method and apparatus for estimating a channel efficiently though pilot subcarrier signal transformation and noise reduction in the mobile communication system are provided. The apparatus includes a time domain transformer for transforming received pilot subcarrier signals to time domain signals, a noise reducer for reducing noises of the time domain signals, a frequency domain transformer for transforming the noise-reduced time domain signals to frequency domain signals, and a final channel estimator for estimating channel values of data subcarriers received using the frequency domain signals. The channel estimation method and apparatus of improves performance with the reduction of computational complexity. | 05-10-2012 |
20120181533 | THIN FILM TRANSISTOR ARRAY PANEL - A thin film transistor array panel includes: an substrate; a gate line positioned on the substrate; a data line intersecting the gate line; a thin film transistor connected to the gate line and the data line; a gate insulating layer between the gate electrode of the thin film transistor and the semiconductor of the thin film transistor; a pixel electrode connected to the thin film transistor; and a passivation layer positioned between the pixel electrode and the thin film transistor, wherein at least one of the gate insulating layer and the passivation layer includes a silicon nitride layer, and the silicon nitride layer includes hydrogen content at less than 2×10 | 07-19-2012 |
20120208330 | THIN FILM TRANSISTOR ARRAY AND METHOD OF MANUFACTURING THE SAME - A method of manufacturing a thin film transistor array substrate includes: forming a gate pattern on a substrate; forming a first gate insulating film and a second gate insulating film on the substrate; forming a source/drain pattern and a semiconductor pattern on the substrate; forming a passivation film on the substrate; forming a photo-resist pattern on the passivation film; patterning the passivation film using the photo-resist pattern to form a passivation film pattern, the patterning of the passivation film including over-etching the passivation film to form an open region in the passivation film; forming a transparent electrode film on the substrate; removing the photo-resist pattern and a portion of the transparent electrode film on the photo-resist pattern; and forming a pixel electrode on the first gate insulating layer. | 08-16-2012 |
20130021931 | METHOD FOR AND APPARATUS FOR FEEDING BACK CHANNEL INFORMATION IN WIRELESS COMMUNICATION SYSTEM - A method and an apparatus for feeding back channel information in a wireless communication system are provided. The method includes calculating an average Signal to Interference and Noise Ratio (SINR), determining a Modulation and Coding Scheme (MCS) level corresponding to the average SINR, determining an MCS level meeting a predefined condition among MCS levels equal to or less than the determined MCS level, and reporting a channel quality indicator representing the determined MCS level to a base station. | 01-24-2013 |
20130037813 | CRYSTALLIZATION METHOD OF THIN FILM TRANSISTOR, THIN FILM TRANSISTOR ARRAY PANEL AND MANUFACTURING METHOD FOR THIN FILM TRANSISTOR ARRAY PANEL - Exemplary embodiments of the invention disclose a method of manufacturing a thin film transistor array panel having reduced overall processing time and providing a uniform crystallization. Exemplary embodiments of the invention also disclose a crystallization method of a thin film transistor, including forming on a substrate a semiconductor layer including a first pixel area, a second pixel area, and a third pixel area. The crystallization method includes crystallizing a portion of the semiconductor layer corresponding to a channel region of a thin film transistor using a micro lens array. | 02-14-2013 |
20130260498 | THIN FILM TRANSISTOR HAVING SEMICONDUCTOR WITH DIFFERENT CRYSTALLINITIES AND MANUFACTURING METHOD THEREOF - A thin film transistor, a display device, and a manufacturing method thereof. The thin film transistor includes a control electrode, a semiconductor overlapping the control electrode, and an input electrode and an output electrode disposed on or under the semiconductor and opposite to each other. The semiconductor includes a first portion disposed between the input electrode and the output electrode and having a first crystallinity, and a second portion connected with the first portion, which overlaps the input electrode or the output electrode, and having a second crystallinity. The first crystallinity is higher than the second crystallinity. | 10-03-2013 |
20140087677 | APPARATUS AND METHOD FOR CONTROLLING POWER IN TRANSMITTING DEVICE - A power control method for controlling a bias voltage of a power amplifier in a transmitting device having the power amplifier is provided. The power control method includes estimating a Peak-to-Average Power Ratio (PAPR) during signal transmission using basis information that is configured for communication in the transmitting device and controlling a bias voltage of the power amplifier based on the estimated PAPR. | 03-27-2014 |
20140105333 | APPARATUS AND METHOD FOR ESTIMATING CHANNEL IN WIRELESS COMMUNICATION SYSTEM - An apparatus for iteratively estimating a channel in a receiver of a wireless communication system is provided. The apparatus includes a channel estimator configured to estimate a first channel value by using a pilot symbol included in a received signal, a demodulator configured to demodulate the received signal by using the first channel value, a decoding unit configured to decode the received signal demodulated by the demodulator, a feedback determining unit configured to determine whether to iteratively estimate the channel, and a feedback device configured to feed back an input value of the decoding unit when the feedback determining unit determines to iteratively estimate the channel, wherein when the feedback determining unit determines to iteratively estimate the channel, the channel estimator estimates a second channel value by using at least one of the pilot symbol included in the received signal and a data symbol received from the feedback device. | 04-17-2014 |
20140264350 | CRYSTALLIZATION METHOD OF THIN FILM TRANSISTOR, THIN FILM TRANSISTOR ARRAY PANEL AND MANUFACTURING METHOD FOR THIN FILM TRANSISTOR ARRAY PANEL - Exemplary embodiments of the invention disclose a method of manufacturing a thin film transistor array panel having reduced overall processing time and providing a uniform crystallization. Exemplary embodiments of the invention also disclose a crystallization method of a thin film transistor, including forming on a substrate a semiconductor layer including a first pixel area, a second pixel area, and a third pixel area. The crystallization method includes crystallizing a portion of the semiconductor layer corresponding to a channel region of a thin film transistor using a micro lens array. | 09-18-2014 |