Patent application number | Description | Published |
20080219547 | METHOD OF ANALYZING A WAFER SAMPLE - In a method of analyzing a wafer sample, a first defect of a photoresist pattern on the wafer sample having shot regions exposed with related exposure conditions is detected. A first portion of the pattern includes the shot regions exposed with an exposure condition corresponding to a reference exposure condition and a tolerance error range of the reference exposure condition. The first defect repeatedly existing in at least two of the shot regions in a second portion of the pattern is set up as a second defect of the pattern. A first reference image displaying the second defect is obtained. The first defect of the shot regions in the first portion corresponding to the second defect is set up as a third defect corresponding to weak points of the pattern. The exposure conditions of the shot region having no weak points are set up as an exposure margin of an exposure process. | 09-11-2008 |
20090238445 | Method of detecting a defect on an object - In a method of detecting a defect on an object, a preliminary reference image can be obtained from a plurality of comparison regions defined on the object. The preliminary reference image is divided into reference zones by a similar brightness. Each of the reference zones is provided with substantially the same gray level, respectively, to obtain a reference image. Whether a defect exists in an inspection region in the comparison regions is determined using the reference image. Thus, defects in the inspection regions having different brightnesses can be detected using the properly obtained reference image. | 09-24-2009 |
20090325326 | Apparatus and method for manufacturing semiconductor devices through layer material dimension analysis - Apparatus and method for manufacturing a semiconductor device through a layer material dimension analysis increase productivity. The method includes performing a semiconductor manufacturing process of at least one reference substrate and at least one target substrate in a semiconductor process device, detecting a reference spectrum and a reference profile for the reference substrate, determining a relation function between the detected reference spectrum and reference profile, detecting a real-time spectrum of the target substrate, and determining in real time a real-time profile of the target substrate processed in the semiconductor process device by using the detected real-time spectrum as a variable in the determined relation function. | 12-31-2009 |
20100156446 | METHOD OF INSPECTING A SUBSTRATE - A method of inspecting a substrate includes measuring a first current flowing between a first region and a second region of the substrate using a first probe. A second current flowing between the first region and the second region of the substrate may be measured using a second probe including a material different from that of the first probe. By comparing the first and second currents, it can be determined whether there is a change in a physical composition of the substrate and a change in a physical configuration of the substrate between the first region and the second region. Thus, when the current change is induced by the change in a physical configuration of the substrate, a determination error that the contaminants on the semiconductor substrate may exist based on the current change may be prevented. | 06-24-2010 |
20110097829 | METHOD FOR INSPECTION OF DEFECTS ON A SUBSTRATE - A method for inspection of defects on a substrate includes positioning a probe of a scanning probe microscopy (SPM) over and spaced apart from a substrate, includes scanning the substrate by changing a relative position of the probe with respect to the substrate on a plane spaced apart from and parallel to the substrate, and includes measuring a value of an induced current generated via the probe in at least two different regions of the substrate. The value of the induced current is variable according to at least a shape and a material of the substrate. The method further includes determining whether a defect exists by comparing the values of the induced currents measured in the at least two different regions of the substrate. | 04-28-2011 |
20130234021 | METHOD AND APPARATUS TO MEASURE STEP HEIGHT OF DEVICE USING SCANNING ELECTRON MICROSCOPE - A method of measuring a step height of a device using a scanning electron microscope (SEM), the method may include providing a device which comprises a first region and a second region, wherein a step is formed between the first region and the second region, obtaining a SEM image of the device by photographing the device using a SEM, wherein the SEM image comprises a first SEM image region for the first region and a second SEM image region for the second region, converting the SEM image into a gray-level histogram and calculating a first peak value related to the first SEM image region and a second peak value related to the second SEM image region, wherein the first peak value and the second peak value are repeatedly calculated by varying a focal length of the SEM, and determining a height of the step by analyzing a trend of changes in the first peak value according to changes in the focal length and a trend of changes in the second peak value according to the changes in the focal length. | 09-12-2013 |
20150115154 | SCANNING ELECTRON MICROSCOPE SYSTEM CAPABLE OF MEASURING IN-CELL OVERLAY OFFSET USING HIGH-ENERGY ELECTRON BEAM AND METHOD THEREOF - A method of measuring an overlay offset using a scanning electron microscope system includes: scanning an in-cell region, which includes a lower structure and an upper structure stacked in a sample, using a primary electron beam with a landing energy of at least 10 kV; detecting electrons emitted from the scanned in-cell region; and measuring an overlay offset with respect to overlapping patterns included in the in-cell region using an image of the in-cell region that is generated based on the detected electrons emitted from the scanned in-cell region. | 04-30-2015 |
20150248127 | PROCESS MANAGEMENT SYSTEMS USING COMPARISON OF STATISTICAL DATA TO PROCESS PARAMETERS AND PROCESS MANAGEMENT DEVICES - A process management system can include a processing device that can be configured to perform a semiconductor process on a plurality of wafers, the processing device controlled by a process parameter. A control device can be configured to acquire statistical data relating to the process parameter and can be configured to select a reference wafer from the plurality of wafers. The control device can be configured to compare a respective process parameter used for the reference wafer with the statistical data and can be configured to set a reference condition for the process parameter. | 09-03-2015 |
20160025618 | Spectral Ellipsometry Measurement and Data Analysis Device and Related Systems and Methods - Spectral ellipsometry measurement systems are provided including a polarizer that rotates at a first angle and adjusts a polarizing direction of incident light of a measurement sample; a compensator that rotates at a second angle, different from the first angle, and adjusts a phase difference of the incident light; an analyzer that rotates at a third angle and adjusts a polarizing direction of light reflected on the measurement sample; a detector that detects a spectral image from the reflected light; a controller that controls one of the polarizer, the compensator, and the analyzer according to polarizer-compensator-analyzer (PCA) angle sets including the first to third angles; and a processor that receives, from the detector, a first spectral image corresponding to a first PCA angle set and a first wavelength and a second spectral image corresponding to a second PCA angle set and a second wavelength, different from the first wavelength, and generates a polarizer-compensator-analyzer rotating (PCAR) spectral matrix using the first and second spectral images. | 01-28-2016 |
20160025654 | APPARATUS AND METHOD FOR INSPECTION OF SUBSTRATE DEFECT - Example embodiments relate to an apparatus and method for inspecting a substrate defect. The substrate defect inspecting apparatus includes a substrate, a light source emitting an infrared beam to the substrate, a detector detecting the infrared beam reflected from the substrate, and a defect analyzer receiving first information and second information from the detector and analyzing defects existing in the substrate. According to at least one example embodiment, the second information is acquired during a later process than the first information. | 01-28-2016 |
20160033550 | CONDUCTIVE ATOMIC FORCE MICROSCOPE AND METHOD OF OPERATING THE SAME - A conductive atomic force microscope including a plurality of probe structures each including a probe and a cantilever connected thereto, a power supplier applying a bias voltage, a current detector detecting a first current flowing between a sample object and each of the probes and a second current flowing between a measurement object and each of the probes, and calculating representative currents for the sample and measurement objects based on the first and second currents, respectively, and a controller calculating a ratio between representative currents of the sample object measured by each of the probe structures, calculating a scaling factor for scaling the representative current with respect to the measurement object measured by each of the probes, and determine a reproducible current measurement value based on the second measurement current and the scaling factor may be provided. | 02-04-2016 |
20160061583 | APPARATUS FOR MEASURING THICKNESS OF THIN FILM, SYSTEM INCLUDING THE APPARATUS, AND METHOD FOR MEASURING THICKNESS OF THIN FILM - An apparatus and a system for measuring the thickness of a thin film are provided. The apparatus includes a signal detector, a Fast Fourier Transform (FFT) generator, an Inverse Fast Fourier Transform (IFFT) generator, and a thickness analyzer. The signal detector detects an electric field signal with respect to a reflected light that is reflected from a thin film. The FFT generator performs FFT with respect to the electric field signal to separate a DC component from an AC component of the electric field signal. The IFFT generator receives the separated AC component of the electric field signal, performs IFFT with respect to the AC component, and extracts a phase value of the AC component. The thickness analyzer measures the thickness of the thin film using the extracted phase value. | 03-03-2016 |
20160084901 | APPARATUS OF INSPECTING RESISTIVE DEFECTS OF SEMICONDUCTOR DEVICES AND INSPECTING METHOD USING THE SAME - A method of inspecting a resistive defect of a semiconductor device is provided. The method includes loading a semiconductor wafer on a wafer stocker, transferring the semiconductor wafer into a laser anneal module, annealing a portion of the semiconductor wafer using a laser beam in an atmospheric pressure, transferring the annealed semiconductor wafer into an E-beam scanning module in a vacuum, scanning the annealed portions of the semiconductor wafer with an E-beam, and collecting secondary electrons emitted from the annealed portions of the semiconductor wafer. | 03-24-2016 |
20160097513 | BROADBAND LIGHT SOURCE AND OPTICAL INSPECTOR HAVING THE SAME - A broadband light source includes a first electrodeless lamp to generate first broadband light from plasma, a first elliptical reflector having first and second focuses, the first elliptical reflector enclosing a rear portion of the first electrodeless lamp positioned at the first focus of the first elliptical reflector such that the first broadband light is reflected from the first elliptical reflector toward a light collector as a collective light, a symmetrically curved reflector having a third focus, the symmetrically curved reflector positioned such that the third focus is coincident with one of the first and second focuses, and a laser irradiator to provide a laser beam to the first electrodeless lamp. | 04-07-2016 |
Patent application number | Description | Published |
20090154901 | METHOD AND APPARATUS FOR REPRODUCING DATA - A method and apparatus for reproducing data. The method includes downloading data in a local storage; and reproducing the data according to a predetermined reproduction order, wherein when data that is to be reproduced next has not yet been downloaded, the reproducing of the data according to the predetermined reproduction order includes: stopping data reproduction; and when downloading the data that is to be reproduced next is completed, reproducing data from the location where data reproduction stopped. | 06-18-2009 |
20090172130 | METHOD OF AND APPARATUS FOR DOWNLOADING DATA - A method of and apparatus for downloading data. The method includes: connecting the downloading apparatus to a server via a communication network and downloading data from the server; generating download information on the data downloading; when connection to the server is interrupted and the data downloading is discontinued, reconnecting the downloading apparatus to the same server using the download information; and downloading data from the server. | 07-02-2009 |
20100165081 | IMAGE PROCESSING METHOD AND APPARATUS THEREFOR - An image processing method, including extracting shot information from metadata, wherein the shot information is used to classify a series of two-dimensional images into predetermined units; if it is determined, by using shot type information included in the shot information, that frames classified as a predetermined shot can be reproduced as a three-dimensional image, extracting background depth information from the metadata, wherein the background depth information is about a background of the frames classified as the predetermined shot; generating a depth map about the background of the frames by using the background depth information; if the frames classified as the predetermined shot comprise object, extracting object depth information about the object from the metadata; and generating a depth map about the object by using the object depth information. | 07-01-2010 |
20100166338 | IMAGE PROCESSING METHOD AND APPARATUS THEREFOR - An image processing method, including extracting compensation information comprising one from among a depth compensation value and a depth value compensated for by using the depth compensation value; when the compensation information comprises the depth compensation value, compensating for a depth value to be applied to a pixel of a two-dimensional (2D) image by using the depth compensation value, and generating a depth map about the 2D image by using the compensated depth value, and when the compensation information comprises the compensated depth value, generating the depth map about the 2D image by using the compensated depth value; obtaining positions in a left-eye image and a right-eye image by using the depth map, wherein the pixel of the 2D image is mapped to the positions; and generating the left-eye image and the right-eye image comprising the positions to which the pixel is mapped. | 07-01-2010 |
20100225740 | METADATA GENERATING METHOD AND APPARATUS AND IMAGE PROCESSING METHOD AND APPARATUS USING METADATA - A metadata generating method including: receiving sub-region dividing information to divide an object into a plurality of sub-regions; and generating sub-region indicating information to indicate each of the plurality of sub-regions divided according to the sub-region dividing information. | 09-09-2010 |
20110292176 | METHOD AND APPARATUS FOR PROCESSING VIDEO IMAGE - A method of processing video images is provided. The method includes reproducing 3-dimensional (3D) video images by generating left-eye video images and right-eye video images from a video stream, receiving a first command for activating a pop-up interactive graphics stream during the reproduction of the 3D video images, and reproducing 2-dimensional (2D) video images by generating either left-eye video images or right-eye video images from the video stream, in response to the first command for activating the pop-up interactive graphics stream. | 12-01-2011 |
20110298797 | GRAPHIC IMAGE PROCESSING METHOD AND APPARATUS - Provided are a method and apparatus for processing a graphic stream. The method may include determining whether a graphic picture is reproducible as a three-dimensional (3D) image by assigning different depth values according to graphic objects or by assigning the same depth value to the graphic picture, using 3D capability information. | 12-08-2011 |
20130286008 | GRAPHIC IMAGE PROCESSING METHOD AND APPARATUS - Provided are a method and apparatus for processing a graphic stream. The method may include determining whether a graphic picture is reproducible as a three-dimensional (3D) image by assigning different depth values according to graphic objects or by assigning the same depth value to the graphic picture, using 3D capability information. | 10-31-2013 |
Patent application number | Description | Published |
20090133608 | Tilting device - A tilting device is disclosed. The tilting device may include: an arm, on which a tilt-shaft is formed; a tilt-base coupled to the tilt-shaft in a manner that allows tilting; a pulley rotatably coupled to the tilt-base; a wire, which is wound around the pulley, and of which either end is coupled to either side of the arm on opposite sides of the tilt-shaft; and a driving unit, which drives the pulley. An embodiment of the invention enables tilting operations using a smaller driving device, and also allows manual operations. | 05-28-2009 |
20090256040 | Wall mount - A wall mount is disclosed. The wall mount can include a bracket and a frame, where the frame can be configured to support an outward portion of the bracket. The frame can be open to one side, and a guide part can be formed on the frame to guide the bracket in such a way that the bracket may be slidably inserted into the frame from the one side of the frame. In certain embodiments of the invention, the adjusting screws can be utilized to enable levelness adjustment, so that the wall mount can be installed in a more convenient manner, and the levelness of the bracket can be adjusted easily and accurately. | 10-15-2009 |
20100327673 | LINEAR VIBRATOR - A linear vibrator is disclosed. In accordance with an embodiment of the present invention, the linear vibrator includes a base, a coil unit, which is coupled to the base, a magnet, which is coupled to the coil unit such that the magnet can move relatively with respect to the coil unit, and a leaf spring, which is interposed between the magnet and the base and includes a plurality of plate-shaped members having center portions thereof being separated from one another and both respective ends thereof being coupled to one another. Thus, the linear vibrator can increase the range of displacement in the leaf spring and increase the magnitude of vibration in the linear vibrator. | 12-30-2010 |
20110006618 | VIBRATION MOTOR - A linear vibrator is disclosed. The linear vibrator includes a base, a coil unit, which is coupled to the base, a magnet, which is coupled to the coil unit such that the magnet can move relatively, and a plurality of leaf springs, which are interposed between the magnet and the base. Here, the plurality of leaf springs face one another and are coupled to one another Thus, the linear vibrator can increase the range of vibration displacement in a structure and increase the amount of vibration in the linear vibrator. Also, even though the linear vibrator becomes thinner, the range of displacement can be increased because the weight is vibrated horizontally. | 01-13-2011 |
20110012442 | LINEAR TYPE VIBRATION MOTOR HAVING MAGNET CASING - A linear type vibration motor having a magnet casing is disclosed. The linear type vibration motor in accordance with an embodiment of the present invention includes a magnet assembly having a pair of magnets, in which same magnetic poles thereof face each other, a magnet casing, which has a hollow part formed therein and houses the magnet assembly in the hollow part, a base, which has a bobbin formed thereon and in which the magnet casing is inserted into the bobbin, a coil, which is coupled to the bobbin, a weight, which is coupled to both ends of the magnet casing, and a pair of elastic bodies, which are interposed between either end of the base and either end of the weight, respectively. Thus, the operating lifetime of the linear type vibration motor can be extended, and this arrangement can prevent the linear type vibration motor from being damaged by an external shock. | 01-20-2011 |
20150125320 | PLATE TYPE COOLING APPARATUS - A plate type cooling apparatus is disclosed. The plate type cooling apparatus in accordance with an embodiment of the present invention includes: a first elastic plate made of an elastic material; a second elastic plate made of an elastic material and having one end thereof joined with the first elastic plate and the other end thereof separated from the first elastic plate; a piezoelectric element coupled with at least one of the first elastic plate and the second elastic plate and being deformable by applied electric power; and a power source coupled with the piezoelectric element so as to apply electric power to the piezoelectric element. | 05-07-2015 |
Patent application number | Description | Published |
20120073275 | TAIL TRIM ASSEMBLY FOR EXHAUST PIPE IN VEHICLE - A tail trim assembly for an exhaust pipe in a vehicle which may be mounted at a rear portion of the exhaust pipe that may be formed at an end of a vehicle muffler and discharges exhaust gas and condensed water from the muffler to the outside, may include a main body fitted around the rear portion of the exhaust pipe, at least a welding part formed at an end of the main body and welded to the exhaust pipe, and a collecting part formed at a rear end of the main body, wherein the rear end of the main body and a rear end of the rear portion in the exhaust pipe may be spaced with a predetermined gap to collect the condensed water discharged from the exhaust pipe therethrough. | 03-29-2012 |
20130118434 | CHAMBER AIR CLEANER AND AN INTAKE APPARATUS FOR ENGINE INCLUDING THE SAME - A chamber air cleaner apparatus may include a chamber housing mounted through a connector onto an air hose wherein the air hose may be connected to a main air cleaner, an intake duct attached to an outer surface of the chamber housing wherein exterior air may be introduced into the chamber housing through the intake duct, a variable valve pivotally installed in the vicinity of the intake duct and selectively opening according to an air suction pressure applied thereto, and a filter element mounted between the intake duct and the connector within the chamber housing to purify the introduced air through the intake duct. | 05-16-2013 |
20130146170 | AIR INTAKE HOSE FOR VEHICLE AND PRODUCTION METHOD THEREOF - An air intake hose for a vehicle may include a blow molding portion formed in a hollow hose shape by blow molding, an injection molding portion formed in a hollow hose shape by injection molding, and a coupling portion formed at one end of the blow molding portion, wherein the blow molding portion and the injection molding portion may be coupled with each other by injecting a material forming the injection molding portion into an injection mold in a state in which the coupling portion may be inserted in the injection mold. | 06-13-2013 |
20140252690 | AIR INTAKE HOSE FOR VEHICLE AND PRODUCTION METHOD THEREOF - An air intake hose for a vehicle may include a blow molding portion formed in a hollow hose shape by blow molding, an injection molding portion formed in a hollow hose shape by injection molding, and a coupling portion formed at one end of the blow molding portion, wherein the blow molding portion and the injection molding portion may be coupled with each other by injecting a material forming the injection molding portion into an injection mold in a state in which the coupling portion may be inserted in the injection mold. | 09-11-2014 |
Patent application number | Description | Published |
20090089572 | BOOTING SYSTEM, IMAGE FORMING APPARATUS HAVING THE SYSTEM AND CONTROL METHOD THEREOF - A booting system including a boot code transmission control unit to sequentially execute a booting operation concurrently with storing boot codes stored in a NAND flash memory in an internal memory. The boot code transmission control unit includes storage units to store addresses of the boot codes stored in the internal memory and an address of a boot code to be accessed by a CPU core for the execution of the booting operation, respectively. These addresses are checked by monitoring a memory interface and a bus interface. When the boot code addresses are the same, the boot code transmission control unit transmits a boot code corresponding to the same address, among the boot codes stored in the internal memory, to the CPU core so that the CPU core can sequentially execute the booting operation. | 04-02-2009 |
20140078530 | IMAGE FORMING APPARATUS, DRIVING METHOD THEREOF, AND COMPUTER-READABLE RECORDING MEDIUM - An image forming apparatus includes a communication interface unit which communicates with an external apparatus, a controller which, if a job performance command is received from the external apparatus when an operation mode of the image forming apparatus is a power saving mode, performs authentication of the external apparatus while maintaining the power saving mode, and a function unit which converts an operation mode of the image forming apparatus according to the authentication result and performs a function corresponding to the job performance command. | 03-20-2014 |
20140079428 | IMAGE FORMING APPARATUS, HOST APPARATUS, SERVER, AND METHOD OF PERFORMING IMAGE FORMING JOB THEREOF - An image forming apparatus includes a storage unit, an interface unit which is connected to a host apparatus and at least one of other image forming apparatuses, an image forming unit which prints image data received through the interface unit, and a controller which, if image data is received when the image forming apparatus is in a normal mode, controls the image forming unit to perform an image forming job using the image data, and if the image data is received when the image forming apparatus is in a power saving mode, controls the interface unit to transmit the image data to another image forming apparatus so that the another image forming apparatus performs an image forming job. | 03-20-2014 |
20140164725 | SYSTEM ON CHIP TO PERFORM A SECURE BOOT, AN IMAGE FORMING APPARATUS USING THE SAME, AND METHOD THEREOF - A system on chip is provided. The system on chip includes a first memory to store a plurality of encryption keys, a second memory, a third memory to store an encryption key setting value, and a CPU to decrypt encrypted data which is stored in an external non-volatile memory using an encryption key corresponding to the encryption key setting value from among the plurality of encryption keys, to store the decrypted data in the second memory, and to perform a boot using data stored in the second memory. Accordingly, security of a boot operation can be improved. | 06-12-2014 |
20160048745 | IMAGE FORMING APPARATUS, METHOD OF DRIVING THE SAME, AND COMPUTER READABLE RECORDING MEDIUM - An image forming apparatus is provided. The image forming apparatus includes a master unit configured to detect a data capturing timing by using data information received with being synchronized with an arbitrary clock in response to a request for data information with respect to a slave unit and use the detected data capturing timing to capture data of the slave unit and a slave unit configured to provide the data information which is synchronized with an arbitrary clock in response to a request for data information from the master unit. | 02-18-2016 |
Patent application number | Description | Published |
20090028599 | DEVELOPER CARTRIDGE AND IMAGE FORMING APPARATUS HAVING THE SAME - A developer cartridge of an image forming apparatus includes a cartridge frame having a developer chamber holding a developer therein, and a developer discharging port, a developer conveying unit rotatably installed on the cartridge frame to agitate and move the developer towards the developer discharging port, and an elastic damper to change the size of a developer discharge space defined by the vicinity to the developer discharging port according to a developer delivery pressure of the developer conveying unit. The damper contracts to increase a size of the developer discharge space and reduce the developer delivery pressure, when the developer delivery pressure increases above a normal pressure in the developer chamber. | 01-29-2009 |
20090034991 | APPARATUS TO PREVENT ERRONEOUS INSERTION OF PARTS, IMAGE FORMING DEVICE HAVING THE SAME, DEVELOPER CARTRIDGE HAVING THE SAME, AND METHOD OF MANUFACTURING THE SAME - An apparatus to prevent an erroneous insertion of parts in an image forming apparatus, the apparatus includes part placement confirming members provided in a plurality of positions of a plurality of part mounting units, part indication member attachment/detachment units provided in the plurality of parts to be mounted on the part mounting units, and having structures each of which has a plurality of divided sections, and a plurality of part indication members combined into combinations of the respective part indication member attachment/detachment units so as to have corresponding combined structures according to positions of the respective part placement confirming members. | 02-05-2009 |
20090214262 | IMAGE FORMING APPARATUS AND DEVELOPING UNIT THEREOF - An image forming apparatus to enhance a user's convenience by adequately designing developer storage capacities of developing devices in consideration of an amount of consumed developer includes an image carrier, and plural developing devices arranged along a rotational direction of the image carrier to supply a developer to the image carrier. The plural developing devices include a first developing device having a largest developer storage capacity, and a second developing device disposed in a most downstream side with respect to the rotational direction of the image carrier. The second developing device has a second largest developer storage capacity. | 08-27-2009 |
20090245877 | DEVELOPING UNIT AND IMAGE FORMING APPARATUS HAVING THE SAME - Disclosed are a developing unit, in which a developing agent storing part is closed by an agitating member, and an image forming apparatus having the same. The developing unit includes a developing agent storing part to store a developing agent, a developing part connected to the developing agent storing part, and an agitating member rotatably provided in a channel between the developing agent storing part and the developing part to transfer the developing agent stored in the developing agent storing part to the developing part, wherein the channel is closed by the agitating member. | 10-01-2009 |
Patent application number | Description | Published |
20100073641 | DISPLAY DEVICE - A liquid crystal display is provided having improved image quality and visibility. The display device includes: a plurality of display panels which display multiple images from multiple display panels; a projection film which overlaps the display panels; and a lens panel including a first lens unit and a second lens unit is interposed between the display panel and the projection film. The first lens unit refracts images and the second lens unit improves image brightness. Therefore the resultant projection is a seamlessly connected image from the multiple display panels. | 03-25-2010 |
20100302268 | DISPLAY APPARATUS AND METHOD OF DRIVING THE SAME - A display apparatus includes a display panel which receives a light, a backlight which provides the light to the display panel in response to a driving voltage, and a backlight driver which applies the driving voltage to the backlight. The backlight is turned on and off during a communication period to transmit data to an external receiver using visible light communication during the communication period. The backlight driver controls a voltage level of the driving voltage according to a number of turn-on periods of the driving voltage during the communication period. | 12-02-2010 |
20110044695 | Visible Light Communication System - A visible light communication system includes a light source emitting a first light having information, an optical filter receiving the first light and an externally provided second light and filtering the first and second light according to wavelength bands of the first and second light to output a filtered light, a photoelectric device receiving the filtered light to generate an output signal, and a data output part receiving the output signal to output data. Accordingly, the external light not having information may be substantially prevented from being provided to the photoelectric device, thereby preventing noise from occurring on the output signal. In addition, no additional operation is required to filter the output signal from the photoelectric device. | 02-24-2011 |
20110216049 | VISIBLE LIGHT COMMUNICATION APPARATUS AND METHOD - Provided is a visible light communication apparatus. The visible light communication apparatus includes: a display unit that displays an image according to an image signal; a light source unit that operates as a backlight for the display unit, generates an optical signal by driving a light source based on a data signal, and outputs the generated optical signal to the display unit; a sensor unit that detects a region corresponding to a shape of a terminal which touches or approaches the display unit; and an image signal conversion unit that converts the image signal such that an image displayed in the region detected by the sensor unit is converted to a bright image having a gray level higher than a predetermined reference gray level. | 09-08-2011 |
20120038868 | TRANSPARENT DISPLAY DEVICE AND DISPLAYING METHOD USING THE SAME - A transparent display device includes a liquid crystal display (LCD) module and a transparent reflector. The LCD module includes an LCD panel having a liquid crystal layer, a light source providing light to the LCD panel, and a polarizing plate disposed between the light source and the LCD panel to polarize light from the light source. The transparent reflector and the LCD module are spaced apart. The transparent reflector displays the image by reflecting the image provided from the LCD panel. The transparency of the transparent reflector may be controlled, and the transparent reflector may have a curved shape. | 02-16-2012 |
20140184666 | DISPLAY APPARATUS AND METHOD OF DRIVING THE SAME - A display apparatus includes a display panel which receives a light, a backlight which provides the light to the display panel in response to a driving voltage, and a backlight driver which applies the driving voltage to the backlight. The backlight is turned on and off during a communication period to transmit data to an external receiver using visible light communication during the communication period. The backlight driver controls a voltage level of the driving voltage according to a number of turn-on periods of the driving voltage during the communication period. | 07-03-2014 |
Patent application number | Description | Published |
20080224129 | FLAT PANEL DISPLAY DEVICE AND METHOD OF MANUFACTURING THE SAME - A flat panel display device, more particularly, an Organic Light Emitting Diode (OLED) display device having uniform electrical characteristics and a method of fabricating the same include: a thin film transistor of which a semiconductor layer including a source, a drain, and a channel region formed in a super grain silicon (SGS) crystallization growth region; a capacitor formed in an SGS crystallization seed region; and an OLED electrically connected to the thin film transistor. Further, a length of the channel region of the silicon layer is parallel with the growth direction in the SGS growth region to improve the electrical properties thereof. | 09-18-2008 |
20080246029 | Thin film transistor, organic light emitting display device including the same, and method of manufacturing the organic light emitting display device - A thin film transistor, e.g., for use in an organic light emitting display, may include: a gate insulating layer disposed on a gate electrode located on a substrate; a semiconductor layer, disposed on the gate insulating layer; and a planarization layer disposed on the gate insulating layer, the source and drain electrodes, and the channel area, and having openings exposing parts of the first source and drain areas and the source and drain electrodes, respectively. The semiconductor layer may include: a channel area corresponding to the gate electrode; first source and drain areas doped with an impurity outside the channel area; second source and drain areas, including a metal, outside the first source and drain areas; and source and drain electrodes disposed on the second source and drain areas and exposing the first source and drain areas. A pixel electrode may be disposed in one of the openings. | 10-09-2008 |
20080246037 | Flat display device and method of manufacturing the same - 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. | 10-09-2008 |
20080277666 | Thin film transistor, organic light emitting display device including the same, and method of manufacturing the organic light emitting display device - A thin film transistor (TFT) may include a substrate, a gate electrode on the substrate, a gate insulating layer on the gate electrode, and a semiconductor layer on the gate insulating layer. The semiconductor layer may include a top surface, a channel area aligned in a vertical direction with the gate electrode, a plurality of doped areas proximate to the channel area, and a plurality of non-doped areas. Source and drain electrodes may be on the top surface of the semiconductor layer aligned above respective ones of the plurality of non-doped areas of the semiconductor layer. A planarization layer may be on the gate insulating layer, the source and drain electrodes and the semiconductor layer channel area, and may include a plurality of openings respectively exposing the plurality of doped areas of the semiconductor layer and a portion of the source electrode and the drain electrode. | 11-13-2008 |
20090039353 | ORGANIC LIGHT-EMITTING DISPLAY DEVICE AND METHOD OF MANUFACTURING THE SAME - An organic light-emitting display device includes a substrate; a gate electrode disposed on the substrate, the gate electrode including a first portion of a metal oxide layer and a metal layer; a pixel electrode disposed on the substrate so as to be insulated from the gate electrode, the pixel electrode including a second portion of the metal oxide layer; a gate insulating layer disposed on the substrate to cover the gate electrode; a semiconductor layer disposed on the gate insulating layer, the semiconductor layer including a channel region corresponding to the gate electrode, and first and second regions disposed outside the channel region; a first electrode connected to the first region of the semiconductor layer; a second electrode connected to the second region of the semiconductor layer and the pixel electrode; an ohmic contact layer disposed between the first region of the semiconductor layer and the first electrode and between the second region of the semiconductor layer and the second electrode; a pixel defining layer disposed on the substrate to cover the first electrode, the second electrode, the semiconductor layer, and the pixel electrode, the pixel defining layer including an opening through which the pixel electrode is partially exposed; an organic light-emitting layer disposed on the pixel electrode exposed through the opening; and an opposite electrode covering the organic light-emitting layer. | 02-12-2009 |
20090039773 | ORGANIC LIGHT EMITTING DISPLAY APPARATUS AND METHOD OF MANUFACTURING THE SAME - An organic light emitting display apparatus including: a substrate; a thin film transistor formed on the substrate; a planarization layer formed on the substrate to cover the thin film transistor and comprising a closed-loop groove; a pixel electrode that contacts the thin film transistor and is formed on the planarization layer; a pixel defining layer formed to fill the closed-loop groove; a spacer formed on the planarization layer and disposed outside the pixel electrode; an organic light emitting layer formed on the pixel electrode; and an opposite electrode covering the organic light emitting layer. | 02-12-2009 |
20110049502 | ORGANIC LIGHT-EMITTING DISPLAY DEVICE AND METHOD OF MANUFACTURING THE SAME - An organic light-emitting display device includes a substrate; a gate electrode disposed on the substrate, the gate electrode including a first portion of a metal oxide layer and a metal layer; a pixel electrode disposed on the substrate so as to be insulated from the gate electrode, the pixel electrode including a second portion of the metal oxide layer; a gate insulating layer disposed on the substrate to cover the gate electrode; a semiconductor layer disposed on the gate insulating layer, the semiconductor layer including a channel region corresponding to the gate electrode, and first and second regions disposed outside the channel region; a first electrode connected to the first region of the semiconductor layer; a second electrode connected to the second region of the semiconductor layer and the pixel electrode; an ohmic contact layer disposed between the first region of the semiconductor layer and the first electrode and between the second region of the semiconductor layer and the second electrode; a pixel defining layer disposed on the substrate to cover the first electrode, the second electrode, the semiconductor layer, and the pixel electrode, the pixel defining layer including an opening through which the pixel electrode is partially exposed; an organic light-emitting layer disposed on the pixel electrode exposed through the opening; and an opposite electrode covering the organic light-emitting layer. | 03-03-2011 |
20120288975 | ORGANIC LIGHT EMITTING DISPLAY DEVICE AND METHOD OF FABRICATING THE SAME - An organic light emitting display device (OLED) and a method of fabricating the same. The OLED includes: a substrate; a thin film transistor on the substrate and including a source electrode and a drain electrode; a first insulating layer on the substrate; a second insulating layer on the first insulating layer and including a trench; a via hole formed in the trench over the first and second insulating layers and exposing a portion of the source electrode or the drain electrode; a first electrode in the trench and connected to one of the source electrode and the drain electrode through the via hole; a pixel defining layer on the first electrode and having an opening exposing the first electrode; an organic layer in the opening and having at least an organic emission layer; and a second electrode on an entire surface of the substrate having the organic layer. | 11-15-2012 |