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Byeong-Hoon

Byeong-Hoon Cho, Seoul KR

Patent application numberDescriptionPublished
20100270552THIN FILM TRANSISTOR SUBSTRATE AND METHOD OF MANUFACTURING THE SAME - A protrusion of dry-etched pattern of a thin film transistor substrate generated due to a difference between isotropy of wet etching and anisotropy of dry etching is removed by forming a plating part on a surface of the wet etched pattern through an electroless plating method. If the plating part is formed on a data pattern layer of the substrate, the width or the thickness of the data pattern layer may be increased without loss of aperture ratio, the channel length of the semiconductor layer may be reduced under the limit according to the stepper resolution and the protrusion part of the semiconductor layer may be removed. As a result, the aperture ratio may be increased, the resistance may be reduced, and the driving margin may be increased due to rising of the ion current. Furthermore, the so-called water-fall noise phenomenon may be eliminated.10-28-2010
20110012115DISPLAY DEVICE WITH IMPROVED SENSING MECHANISM - A display panel that includes: a substrate, a sensing transistor disposed on the substrate, and a readout transistor connected to the sensing transistor and transmitting a detecting signal is presented. The sensing transistor includes a semiconductor layer disposed on the upper substrate, a source electrode and a drain electrode disposed on the semiconductor layer, and a gate electrode overlapping the semiconductor layer on the source electrode and the drain electrode. Accordingly, in a display device and a manufacturing method thereof, an infrared sensing transistor, a visible light sensing transistor, and a readout transistor are simultaneously formed with a top gate structure such that the number of manufacturing processes and the manufacturing cost may be reduced.01-20-2011
20110032461VISIBLE-LIGHT BLOCKING MEMBER, INFRARED SENSOR INCLUDING THE VISIBLE-LIGHT BLOCKING MEMBER, AND LIQUID CRYSTAL DISPLAY DEVICE INCLUDING THE INFRARED SENSOR - In a visible-light blocking member, an infrared sensor including the visible-light blocking member, and a liquid crystal display including the infrared sensor, a visible-light blocking member is a structure including amorphous germanium or a compound of amorphous germanium and has higher transmittance for a wavelength of an infrared ray region than for a wavelength of a visible light region. Accordingly, sensitivity to infrared rays may be increased by applying the visible-light blocking member to the infrared sensor.02-10-2011
20110057189DISPLAY DEVICE AND MANUFACTURING METHOD THEREOF - A display device includes a lower panel including a lower substrate and a pixel transistor formed on the lower substrate; and an upper panel facing the lower panel, and including an upper substrate, a sensing transistor formed on the upper substrate, and a readout transistor connected to the sensing transistor and transmitting a signal. The readout transistor includes a first lower gate electrode formed on the upper substrate, a first semiconductor layer formed on the first lower gate electrode and overlaps the first gate electrode, and a first source electrode and a first drain electrode disposed on the first semiconductor layer. The sensing transistor includes a light blocking film disposed on the upper substrate, a second lower gate electrode contacting the light blocking film on the light blocking film, a second semiconductor layer overlapping the light blocking film on the second lower gate electrode, a second source electrode and a second drain electrode formed on the second semiconductor layer, and a second upper gate electrode overlapping the second semiconductor layer on the second source electrode and the second drain electrode.03-10-2011
20110090420SENSOR ARRAY SUBSTRATE, DISPLAY DEVICE INCLUDING THE SAME, AND METHOD OF MANUFACTURING THE SAME - A sensor array substrate, a display device including the sensor array substrate, and a method of manufacturing the sensor array substrate are provided. The sensor array substrate includes a substrate, a first sensor formed on a first pixel area of the substrate and configured to detect light, an overcoat layer formed on the first sensor, and a shield layer formed over the overcoat layer, wherein the shield layer overlaps the first sensor.04-21-2011
20110147746TOUCH SCREEN SUBSTRATE, METHOD OF MANUFACTURING THE SAME, AND DISPLAY PANEL INCLUDING THE TOUCH SCREEN SUBSTRATE - A touch screen substrate includes a base substrate, a first switching element and a first sensing element which senses infrared light. The first switching element includes a first switching gate electrode, a first active pattern disposed on the first switching gate electrode, a first switching source electrode disposed on the first active pattern and a first switching drain electrode disposed apart from the first switching source electrode. The first sensing element includes a first sensing drain electrode connected to the first switching source electrode, a first sensing source electrode disposed apart from the first sensing drain electrode, a second active pattern disposed below the first sensing drain electrode and the first sensing source electrode and including a first amorphous layer, a doped amorphous layer and a second amorphous layer, and a first sensing gate electrode disposed on the first sensing drain electrode and the first sensing source electrode.06-23-2011

Byeong-Hoon Lee, Seoul KR

Patent application numberDescriptionPublished
20090095955SEMICONDUCTOR INTEGRATED CIRCUIT AND TESTING METHOD THEREOF - A semiconductor integrated circuit including a detector and a secure checker. The detector generates a detection signal upon sensing an abnormal state in an operating environment of the semiconductor integrated circuit. The secure checker generates a check signal to find an operating condition of the detector and receives the detection signal. The detector activates the detection signal in response to the check signal.04-16-2009
20090113546MEMORY SYSTEM FOR SENSING ATTACK - A memory system includes a main memory, a sub-memory, a controller, first and second data readers and a comparator. The main memory stores data and the sub-memory stores data extracted from the data stored in the main memory for detection of an attack. The controller controls operations of the memory system through interfacing with a host. The first data reader is configured to read first data from the main memory based on address information from the controller. The second data reader is configured to store information relating to second data stored in the sub-memory and to read the second data from the sub-memory based on address information from the controller which is the same as the address information received by the first data reader. The comparator compares the first data read by the first data reader with the second data read by the second data reader to detect the attack.04-30-2009
20100229006Memory for Protecting Data, Memory System Including the Memory, and Method of Driving the Memory - A memory for protecting data includes a first storage area storing N-number of encryption keys, where N is a natural number, a second storage area receiving the N-number of encryption keys from the first storage area and storing again the received N-number of encryption keys, and a selection unit selecting one of the N-number of encryption keys stored in the second storage area according to a control signal, and encoding data input from outside the memory using a selected encryption key or decoding the data stored in the first storage area using the selected encryption key.09-09-2010
20110101114Memory System and Data Reading Method Thereof - A memory system includes a memory and a memory controller operating to control the memory. The memory includes a random accessible memory including a memory cell array operable in a random access mode, a NAND flash memory, and a selection circuit making the memory controller operate either one of the random accessible memory or the NAND flash memory.05-05-2011

Patent applications by Byeong-Hoon Lee, Seoul KR

Byeong-Hoon Park, Suwon-Si KR

Patent application numberDescriptionPublished
20080309887Micro-scanner and image projection apparatus using the same - A micro-scanner adapted for being miniaturized and an image projection apparatus using the same. The micro-scanner includes a scan mirror for scanning incident light to a screen while swinging about a rotary shaft; and upper and lower supports for rotatably supporting the top and bottom parts of the rotary shaft. The upper and lower supports having a driving unit for supplying driving force for rotating the scan mirror.12-18-2008
20100134767LIGHT EMITTING DEVICE FOR PORTABLE COMMUNICATION DEVICE HAVING DIGITAL LIGHT PROCESSING PROJECTOR AND LIQUID CRYSTAL DISPLAY - Provided is a light emitting device of an electronic device, provided with a DLP (Digital Light Processing) projector and a display unit, which is configured in such a manner that the light generated by the operation of the DLP projector can be re-used as a backlight light of the display unit. The disclosed light emitting device includes a first mirror for projecting a light of the DLP projector on a flat area provided ahead of the first mirror in an intermediate operation state of the first mirror; a light concentration mirror for converging the light projected on the flat area, the light concentration mirror being provided at a position adjacent to the flat area; and an optical fiber for transferring the light converged by the light concentration mirror to the display unit and enabling re-use of the transferred light as a light for a backlight of the display unit.06-03-2010
20100171933METHOD FOR COMPENSATING FOR COLOR LOSS OF IMAGE IN IMAGE PROJECTOR AND APPARATUS THEREOF - An apparatus is provided for compensating for color loss of an image in an image projector. A light source has Red (R), Green (G) and Blue (B) lamps. An optical image modulator receives R, G and B lights generated in the light source, receives an electrical image signal, modulates the lights according to the image signal, and outputs the lights so that an associated image is projected on a screen. A camera photographs an area on the screen where the image is projected. A lamp driving controller with a color-temperature table, in which optimal brightness setting values of the R, G and B lamps are stored for each screen color, checks brightness setting values of each of the lamps upon receipt of screen color information from the camera. A lamp driver drives each of the lamps in the light source according to control information from the lamp driving controller.07-08-2010
20100207956DISPLAY METHOD AND APPARATUS - A method of displaying image data is provided, which includes analyzing histograms by color signals of an input image frame; confirming grayscales by color signals in a predetermined frame unit with reference to the analyzed histograms; determining dimming factors in consideration of maximum grayscale values of the grayscales; determining image gains of the image data by color signals using the determined dimming factors; and outputting an image signal by applying the image gains to the input image and applying the dimming factors to a light source.08-19-2010
20100231137LIGHT SOURCE DRIVING APPARATUS - A light source driving apparatus is disclosed which includes a power supply including a power supply terminal connected to a first path through which a power source is supplied to a light source and including a feedback terminal for receiving a feedback of the power source supplied to the light source, a feedback resistor connected to the feedback terminal, and a current divider for branching a current flowing into the first path and supplying the branched current to the feedback resistor.09-16-2010
20110007084APPARATUS AND METHOD FOR CONTROLLING DUAL DISPLAY USING RGB INTERFACE IN MOBILE TERMINAL WITH PROJECTOR MODULE - A method and apparatus is provided for controlling a dual display using a Red, Green and Blue (RGB) interface in a mobile terminal with a projector module, in which the projector module expends a high-resolution image and projects the expended image to the outside, a display displays a menu image for operation of the projector module, an image processor has a first buffer assigned to the display for data transmission to the display, and a second buffer assigned to the projector module for data transmission to the projector module, and a controller transmits image data to the first and second buffers, and outputs control signals for activating both or a selected one of the first and second buffers, depending on selection of a display mode.01-13-2011

Patent applications by Byeong-Hoon Park, Suwon-Si KR