Patents Issued in July 17, 2008
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Publication number: 20080169989Abstract: An antenna is integrated with a window of a vehicle primarily for operating in multiple cellular telephone frequency bands. The antenna includes a conductive area formed of conductive material defining a slot. The slot is dimensioned such that edges adjacent the slot radiate primarily in a first frequency band. The antenna also includes a conductive strip formed of conductive material extending from the conductive area. The conductive strip is dimensioned to radiate primarily in a second frequency band.Type: ApplicationFiled: October 18, 2007Publication date: July 17, 2008Applicant: AGC AUTOMOTIVE AMERICAS R&D, INC.Inventors: Qian Li, Wladimiro Villarroel, Nuttawit Surittikul, Masaru Shiina, Kwan-ho Lee
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Publication number: 20080169990Abstract: There is provided an AM/FM receiving antenna, which is provided at a windowpane of a vehicle, comprising an AM antenna element including an end portion as a power supply point and another end portion forming an open end, and an AM/FM antenna element connected to the AM antenna element via the power supply point, wherein a distance L between the end portion and the another end portion of the AM antenna element, a reduction ratio ? of a material of the windowpane, a minimum wavelength ?min of a receiving FM frequency band, and a maximum wavelength ?max of the receiving FM frequency band meet a requirement equation of ?·?min/2?L??·?max/2. The AM/FM receiving antenna can properly achieve the compatibility of receiving sensitivity of the AM and FM electric waves, having a smaller layout space for antenna elements.Type: ApplicationFiled: December 21, 2007Publication date: July 17, 2008Applicant: MAZDA MOTOR CORPORATIONInventors: Tatsuaki TANIGUCHI, Kazuo SHIGETA
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Publication number: 20080169991Abstract: A ground conductor constituting a bottom board and a loop antenna formed of a strip conductor formed separately from and around the ground conductor are provided on one face of a dielectric substrate, and a transmitter-receiver is connected to one end of the loop antenna serving as the power dispatching unit via a first matching circuit, and a second matching circuit is connected to the other end. A conductor formed of the strip conductor is provided on the dielectric substrate on the other face of the dielectric substrate so as to oppose the loop antenna with the intermediary of the dielectric substrate. A third matching circuit is connected to one end of the conductor and a fourth matching circuit is connected to the other end of the conductor. The loop antenna and the conductor are set to have a wavelength shorter than that of the frequency band to be used.Type: ApplicationFiled: January 8, 2008Publication date: July 17, 2008Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Nobuyasu TAKEMURA, Masataka OHTSUKA
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Publication number: 20080169992Abstract: The dual-polarization, slot-mode antenna includes an array of dual-polarization, slot-mode, antenna units carried by a substrate, and each dual-polarization, slot-mode antenna unit includes a plurality of patch antenna elements arranged in spaced apart relation. The substrate is preferably a flexible substrate. Adjacent patch antenna elements of each dual-polarization, slot-mode antenna unit may have respective spaced apart edge portions defining gaps therebetween, and a respective capacitive coupling feed plate may be associated with each gap and overlap the respective spaced apart edge portions of adjacent patch antenna elements of each dual-polarization, slot-mode antenna unit. Each capacitive coupling feed plate may include a feed point.Type: ApplicationFiled: January 16, 2007Publication date: July 17, 2008Applicant: Harris CorporationInventors: Sean Ortiz, Timothy Durham, Griffin Gothard
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Publication number: 20080169993Abstract: An antenna device includes: a plurality of element arrays; a mast member which holds the plurality of element arrays such that the element arrays are arranged in a direction perpendicular to a reference plane; and a first feeding circuit which feeds the element arrays, wherein each element array comprises: a predetermined number of dipole antennas; and a second feeding circuit which feeds the predetermined number of dipole antennas such that the predetermined number of dipole antennas can transmit and/or receive predetermined circularly polarized wave components alone, for each of the element arrays, the first feeding circuit and the second feeding circuit of the element array are connected through an independent transmission path, and each element array is fed with a predetermined phase difference.Type: ApplicationFiled: September 13, 2007Publication date: July 17, 2008Applicant: NEC CORPORATIONInventors: Yoshihiko Matsuzawa, Ryuichi Iwata, Hitoshi Tanno
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Publication number: 20080169994Abstract: An antenna device can be designed using a micro-strip array antenna designing method while improving a F/B ratio, and resisting wind pressure load despite small size and lightweight. The antenna device includes an array antenna having a plurality of radiation elements arranged on one surface of a rectangular ground plate composed of a short side and a long side and a reflector having a conductive material whose cross section is nearly a half cylinder in a circular arc shape, in which a width between parallel linear end portions corresponding to an arc of the cross section is longer than the short side of the ground plate. The array antenna is disposed such that the other surface of the ground plate faces inner wall of a depression part of the reflector and the ground plate is disposed in the same plane as or in nearly the same plane as each of the linear end portions of the reflector.Type: ApplicationFiled: December 21, 2007Publication date: July 17, 2008Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventor: Minoru HASEGAWA
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Publication number: 20080169995Abstract: An embodiment of the present invention provides a power amplifier, comprising tunable impedance matching circuit including a plurality of tunable dielectric varactors and a DC voltage source interface capable of providing voltage to said plurality of said tunable dielectric varactors.Type: ApplicationFiled: March 17, 2008Publication date: July 17, 2008Inventors: Cornelis Frederik du Toit, Deirdre A. Ryan
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Publication number: 20080169996Abstract: A waterproof housing is used for accommodating electronic components of an antenna device. The waterproof housing includes a casing and a base body. The casing has a plurality of combination holes disposed on a sidewall thereof, and the electronic components are disposed on the base body. The base body has a plurality of combination members corresponding to the combination holes. The electronic components are accommodated inside the casing by snapping the combination members and the combination holes. The positions of the electronic components are higher than those of the combination holes, when rain water comes into the casing through the combination holes, the rain water will flow down into the base body, and thus the electronic components are prevented from being wet and damaged by the rain water.Type: ApplicationFiled: January 15, 2008Publication date: July 17, 2008Applicant: SMARTANT TELECOM CO., LTD.Inventor: Sheng-Hsiung YANG
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Publication number: 20080169997Abstract: A multi-dimensional image selectable display device, including an image panel adapted to output images and a barrier panel on an upper portion of the image panel so as to display the images as a two-dimensional (2D) image or a three-dimensional (3D) image. The barrier panel may include a first substrate having a first electrode and a second electrode to generate a horizontal electric field between the first and second electrodes, a second substrate having a transparent electrode on a front surface thereof, and a liquid crystal layer between the first and second substrates. The liquid crystal layer may include liquid crystals. The first and second electrodes may include a plurality of pattern units, wherein each of the pattern units may include a plurality of fine patterns extending therefrom.Type: ApplicationFiled: January 16, 2008Publication date: July 17, 2008Inventor: Kyung-ho Choi
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Publication number: 20080169998Abstract: An apparatus includes a monocular display with a wireless communications interface, a user input device, a transmitter, receiver and a controller. The controller is configured to control the transmitter for sending and receiving control signals to and from an external device via the wireless interface. The monocular display is positioned relative to the user's dominant eye to display images to the user while occluding less than half of the user's maximum viewing space, while enabling the user to send and receive audible information or music.Type: ApplicationFiled: January 8, 2008Publication date: July 17, 2008Applicant: Kopin CorporationInventors: Jeffrey J. Jacobsen, Stephen A. Pombo
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Publication number: 20080169999Abstract: A dielectric layer of a plasma display panel that can coat a discharge electrode regardless of the form of the discharge electrode and that can be manufactured using a low temperature process, a method of forming the dielectric layer, and a plasma display panel including the dielectric layer. Thus the dielectric layer includes an organic material and is manufactured using an electro-deposition coating method.Type: ApplicationFiled: July 30, 2007Publication date: July 17, 2008Applicant: Samsung Techwin Co., Ltd.Inventors: Eun-hee Kim, Woo-suk Choi, Jin-woo Lee
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Publication number: 20080170000Abstract: A driving method and apparatus of a plasma display panel prevents a low discharge and an over discharge from occurring in a sustain period of a following sub-field by gradually changing a rising time of a last sustain pulse applied in the sustain period in each sub-field. The driving method includes dividing one frame into a plurality of sub-fields, each sub-field respectively including a reset period, an address period, and a sustain period, wherein a rising time of a last sustain pulse applied in the sustain period is gradually changed in each sub-field.Type: ApplicationFiled: January 9, 2008Publication date: July 17, 2008Applicant: Samsung SDI Co., Ltd.Inventor: Byeongseon MIN
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Publication number: 20080170001Abstract: A display driver includes a first circuit configured to supply a first voltage and a second voltage to at least one electrode of a plasma display panel, and a second circuit configured to supply a third voltage from a first node of the second circuit to the at least one electrode, the third voltage being between the first voltage and the second voltage. The second circuit includes a first switching transistor controlled by a switching control signal, a second switching transistor controlled by the first switching transistor, the second switching transistor being configured control a connection between a first power terminal and the first node, the first power terminal supplying the first voltage, and a capacitor coupled between the first node and a second power terminal, the second power terminal supplying the second voltage, the capacitor being charged when the second switching transistor is turned on.Type: ApplicationFiled: November 27, 2007Publication date: July 17, 2008Inventor: Yoo-Jin Song
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Publication number: 20080170002Abstract: A method of driving a Plasma Display Panel (PDP) while improving a brightness saturation phenomenon that is caused by an increase in the total number of sustain discharge pulses. A sustain discharge is performed by a plurality of first and second electrodes, a number of sustain discharge pulses for a subfield is provided based on a rate of load of an input signal, and first and second voltages are alternately and respectively supplied to the first and second electrodes in a sustain period according to the provided number of the sustain discharge pulses, the second voltage being greater than the first voltage. A duration in which the first voltage is increased to the second voltage is inversely proportional to the number of sustain discharge pulses for the subfield.Type: ApplicationFiled: December 13, 2007Publication date: July 17, 2008Inventors: Sang-Young Lee, Kwang-Ho Jin, Sun-Kyung Ahn, Jung-Jin Choi
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Publication number: 20080170003Abstract: The areas of the transparent electrodes of the row electrodes constituting each row electrode pair facing the required discharge cells vary in accordance with the positions of the corresponding discharge cells within the panel screen. Required column electrodes of a plurality of column electrodes, which are provided for allowing an opposing discharge to be initiated across the discharge space between the column electrode and a row electrode of each row electrode pair in each discharge cell of the PDP, have portions facing the transparent electrodes of the row electrodes and provided with widened portions. The areas of the widened portions vary in accordance with the positions of the corresponding discharge cells within the panel screen.Type: ApplicationFiled: November 28, 2007Publication date: July 17, 2008Inventors: Atsuya Ito, Yasuhiro Torisaki, Tetsuya Matsumoto
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Publication number: 20080170004Abstract: An organic light emitting display and an image compensation method improves the Long Range Uniformity (LRU) of the output image by displaying the identical image when the identical image is input to each pixel, by measuring the luminance, chromaticity coordinates and color temperature after an organic light emitting display panel is fabricated, by storing the compensation values thereof in a memory in the form of a look-up table in advance, and by compensating one of a power supply voltage, a data voltage and a light emission time.Type: ApplicationFiled: April 23, 2007Publication date: July 17, 2008Inventor: Jin-Woung Jung
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Publication number: 20080170005Abstract: A-light-emitting device which realizes a high aperture ratio and in which the quality of image is little affected by the variation in the characteristics of TFTs. A large holding capacitor Cs is not provided in the pixel portion but, instead, the channel length and the channel width of the driving TFTs are increased, and the channel capacitance is utilized as Cs. The channel length is selected to be very larger than the channel width to improve current characteristics in the saturated region, and a high VGS is applied to the driving TFTs to obtain a desired drain current. Therefore, the drain currents of the driving TFTs are little affected by the variation in the threshold voltage. In laying out the pixels, further, wiring is arranged under the partitioning wall and the driving TFTs are arranged under the wiring in order to avoid a decrease in the aperture ratio despite of an increase in the size of the driving TFT.Type: ApplicationFiled: August 1, 2007Publication date: July 17, 2008Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventors: Mitsuaki Osame, Aya Anzai, Jun Koyama, Makoto Udagawa, Masahiko Hayakawa, Shunpei Yamazaki
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Publication number: 20080170006Abstract: An organic light emitting display capable of preventing the occurrence of a line defect. A pixel region includes a plurality of organic light emitting diodes connected to scan lines and data lines. A scan driver supplies scan signals to the scan lines. A data driver supplies data signals to the data lines. A current limit device is connected between the scan driver and the pixel region and cuts-off a flow of an electric current flowing from the scan driver to the pixel region.Type: ApplicationFiled: August 8, 2007Publication date: July 17, 2008Applicant: Samsung SDI Co., Ltd.Inventors: Young-mo KOO, Ok-keun SONG, Hye-in JEONG, Tae-shick KIM
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Publication number: 20080170007Abstract: A self light emitting device having a function of correcting drops in brightness in self light emitting elements in a pixel portion, and capable of displaying a uniform image without brightness irregularities, is provided. A specific test pattern is displayed when an electric power source is connected, brightnesses are detected by photoelectric conversion elements arranged in each pixel, and then stored in a memory circuit. A correction circuit then corrects a first image signal based on portions which are insufficient from standard brightnesses (brightnesses of normal self light emitting elements at the same gray stale, stored in advance), and a second image signal is obtained. Display of an image in a display device is performed in accordance with the second image signal.Type: ApplicationFiled: September 4, 2007Publication date: July 17, 2008Applicant: Semiconductor Energy Laboratory Co., Ltd.Inventor: Yoshifumi TANADA
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Publication number: 20080170008Abstract: An organic light emitting display including a demux is disclosed. The display include a plurality of RGB switching transistors which apply a data voltage through RGB data lines as the RGB switching transistors are coupled to the respective RGB data lines, and a plurality of RGB pixel circuits coupled to the RGB switching transistors of the demux. In addition, the RGB data voltage of the demux can be applied during a period which a turn-on emission control signal is applied to the RGB pixel circuits.Type: ApplicationFiled: July 16, 2007Publication date: July 17, 2008Inventor: Yangwan Kim
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Publication number: 20080170009Abstract: An organic light emitting display operates on at least two different selection signals, which may perform a bi-directional scan that allows a double-sided screen to be displayed. The organic light emitting display includes a data line, first and second scan lines, a bi-directional data driver for applying a data signal in both directions, a first scan driver adapted to receive a forward or reverse signal and to selectively output a first selection signal having a forward or reverse direction to the first scan line in accordance with the forward or reverse signal, and a second scan driver adapted to receive the first selection signal and to selectively output a second selection signal of a forward or reverse direction to the second scan line in accordance with the forward or reverse signal.Type: ApplicationFiled: August 20, 2007Publication date: July 17, 2008Inventor: Ki Myeong Eom
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Publication number: 20080170010Abstract: An organic light emitting display is disclosed. The display includes a scan line, a data line, and a pixel coupled to the scan line and the data line. The pixel is configured to at least partially compensate for transistor threshold variation and for IR-drop in a power supply line, where the pixel includes no more than three transistors and no more than two capacitors.Type: ApplicationFiled: December 27, 2007Publication date: July 17, 2008Inventor: Yangwan Kim
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Publication number: 20080170011Abstract: In organic EL display apparatuses, when the reset operating time required for compensating variations in the OLED drive TFT voltage threshold is too short then fluctuations in the threshold voltage Vth cannot be corrected and an accurate gray scale is impossible. A precharge voltage is supplied from the precharge TFT switch prior to the reset TFT switch and the light TFT switch resetting the Vth of the OLED driver TFT, in order to apply a specified voltage value to the gate voltage of the OLED driver TFT prior to reset. The voltage potential on the gate of the OLED driver TFT prior to reset is therefore no longer an undetermined voltage potential so variations in the gate voltage after reset are suppressed and variations in the gray scale are suppressed.Type: ApplicationFiled: December 27, 2007Publication date: July 17, 2008Inventors: Tohru Kohno, Mitsuhide Miyamoto, Hajime Akimoto
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Publication number: 20080170012Abstract: The present invention relates to displays that use LED strings for backlighting. A lead string is provided with continuous drive voltage and the non-lead strings are provided with pulsed drive pulses. The string having the highest forward voltage is selected as the lead string. Feedback information indicative of the currents flowing through the non-lead strings is used to determine the duty cycles of the voltage pulses provided to drive the non-lead strings. The non-lead strings are controlled using pulsed drive voltages to minimize power dissipation in the circuit.Type: ApplicationFiled: January 12, 2007Publication date: July 17, 2008Inventors: Dilip S, Gurjit S. Thandi, Hendrik Santo, Kien Vi
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Publication number: 20080170013Abstract: An organic light emitting diode display and a fabricating method thereof are disclosed. Embodiments provide an organic light emitting diode display and a fabricating method thereof which prevents a pixel and a driver included in the organic light emitting diode display from being damaged due to an electrostatic discharge by forming a protective layer along at least one edge region of a substrate having a pixel region and a non-pixel region.Type: ApplicationFiled: March 12, 2007Publication date: July 17, 2008Inventors: Seoni Jeong, Michael Choi
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Publication number: 20080170014Abstract: An organic light emitting display and a method of correcting images thereof prevents the occurrence of excessive pixel aging, burning and image sticking caused by loading effect and includes: a loading effect measuring unit to measure a luminance according to a level at which an image signal having an equal gray scale value is loaded into a display panel of the organic light emitting display; an average loading level calculating unit to calculate a loading level at which the luminance averages; a loading effect compensating unit to compensate the power supply voltage corresponding to the image signal to obtain a luminance equal to the luminance at the average loading level; and a power supply control unit to control the power supply voltage to supply the compensated power supply voltage to the display panel of the organic light emitting display.Type: ApplicationFiled: June 13, 2007Publication date: July 17, 2008Inventors: Jin Woung Jung, Sun A Yang, Eun Jung Lee, Su Young Kim, Youn Chul Oh, Hye Hyang Park
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Publication number: 20080170015Abstract: A display device includes a substrate having light emitting elements for display on a front surface; a substrate supporting body having an opening in the center and positioned on the back surface side of the substrate to support a peripheral region of the substrate; a case body positioned on the back surface side of the substrate supporting body and covering a part of the center opening; a fan unit arranged in the case body; a wind path plate arranged between the fan unit and the back surface of the substrate and forming a wind path to pass airflow generated by driving the fan unit only on the back surface side of the substrate; and a power supply arranged in the case body and on the back surface of the wind path plate; and wherein the airflow impinges the wind path plate through the fan, thereafter passes through the wind path and is discharged to the outside from the back side of the wind path plate.Type: ApplicationFiled: January 10, 2008Publication date: July 17, 2008Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Koji Kise, Kazuhiro Ioki, Yoshimi Iwasaki, Hironobu Kawaguchi
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Publication number: 20080170016Abstract: A liquid crystal device is provided with wiring lines on a second substrate. The signal lines are connected to common electrodes provided on a first substrate at their ends overlaying a sealing material. The wiring lines extend in an area surrounded by the inside edges of the sealing material on the first substrate. The effective value of a voltage applied to the liquid crystals at cross sections between one of the wiring lines and common electrodes other than the common electrode connected to the corresponding wiring line among the multiple common electrodes is set to be smaller than the effective value of a voltage applied to the corresponding pixel for turning on the pixel.Type: ApplicationFiled: September 19, 2003Publication date: July 17, 2008Inventors: Hiroshi Wada, Minoru Ikeda
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Publication number: 20080170017Abstract: A liquid crystal display (LCD) device and a method of driving the same applies dummy pixel signals each representing a substantially identical brightness level during a blanking period, wherein the horizontal stripe phenomenon is substantially prevented from being generated due to differences in capacitive coupling between liquid crystal cells and adjacent data line.Type: ApplicationFiled: November 26, 2003Publication date: July 17, 2008Inventors: Hun Jeoung, Hong Soo Kim
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Publication number: 20080170018Abstract: This invention relates to a liquid crystal device with grey scale. The invention uses dither, either spatial or temporal. For spatial dither the invention arranges so that at least one bit of dither is not a multiple of the size of a smaller bit of dither—in other words there is a fractional weighting. The two bits of dither have the same number of addressable transmission levels and the weighting sacrifices some linearity in exchange for reduction of manufacturing tolerances for the smaller bit. For temporal dither the invention relates to fractional weighting of the duration of the sub-frames.Type: ApplicationFiled: July 7, 2003Publication date: July 17, 2008Inventors: John C. Jones, Stephen M. Beldon
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Publication number: 20080170019Abstract: In the liquid crystal display device, in case a value prepared for setting brightness to a pixel is “001110”(L14), 8 bits obtained by the bit-shifting to lower direction by 2 bits(2 bit-shifting) and the setting of the bit value “1” is “11001110”. Frame rate control is thereafter performed by using upper 6 bits “110011” and 6 bits “110010” obtained when 1 is reduced from “110011”.Type: ApplicationFiled: December 13, 2007Publication date: July 17, 2008Inventor: Hirofumi KATO
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Publication number: 20080170020Abstract: A liquid crystal display includes a signal control unit which supplies an image signal; a voltage supply unit which outputs a first reference voltage when the image signal is not at a highest grayscale level and outputs a second reference voltage having a voltage level higher than that of the first reference voltage when the image signal is at the highest grayscale voltage level; a grayscale voltage generating unit which receives the first reference voltage or the second reference voltage and generates a plurality of positive- and negative-polarity grayscale voltages whose voltage levels sequentially decrease; and a data driving unit which receives the image signal, the plurality of positive- and negative-polarity grayscale voltages and applies an image data voltage corresponding to the image signal to a pixel.Type: ApplicationFiled: December 19, 2007Publication date: July 17, 2008Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Eun-kyung KIM, Nam-suk BANG, Hyun-suck JEONG
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Publication number: 20080170021Abstract: An exemplary liquid crystal display includes a frame buffer (41), a frame rate conversion circuit (42), a data divider (43), and a data driver (44). The frame buffer is configured for doubling a frame rate of inputted signals. The frame rate conversion circuit is configured for reducing a bit number of signals. The frame rate conversion circuit includes a first and a second look up table. The first look up table converts a gray level of one of the sub-frames into a higher gray level corresponding to signals with the lower bit number. The second look up table is configured for converting a gray level of the other sub-frame into a lower gray level corresponding to signals with the lower bit number. The data divider is configured for transmitting the signals to the data driver in several buses. The data driver drives the liquid crystal display to display images.Type: ApplicationFiled: January 14, 2008Publication date: July 17, 2008Inventor: Eddy Giing-Lii Chen
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Publication number: 20080170022Abstract: A pixel driving circuit of this invention utilizes a storage capacitor and an active loading circuit to serve as a pixel data storage buffer for each pixel. The pixel driving circuit of this invention can write the whole-panel pixel data for a next frame in these storage buffers during the illuminating time of a backlight. When changing the frames, the whole-panel pixels synchronously read the pixel data pre-stored in these storage buffers. As a result, the write-in time of the whole-panel pixel data is reduced and the illuminating time of the backlight is relatively increased.Type: ApplicationFiled: June 7, 2007Publication date: July 17, 2008Inventors: Heng-Yin Chen, Jih-Fon Huang, Chih-Tsung Tsai, Hung-Wei Li
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Publication number: 20080170023Abstract: An aligning method of a ferroelectric liquid crystal display includes; disposing a first mask and a second mask, each of which has opening regions and blocking regions arranged in alternating fashion in vertical direction and horizontal direction corresponding to liquid crystal cells of the liquid crystal display; and injecting a ferroelectric liquid crystal material within the liquid crystal panel.Type: ApplicationFiled: December 12, 2003Publication date: July 17, 2008Inventors: Suk Won Choi, Hong Chul Kim
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Publication number: 20080170024Abstract: A liquid crystal display device includes a liquid crystal display panel including a plurality of data lines to which a data voltage is supplied, a plurality of gate lines to which a gate pulse is supplied, and a plurality of liquid crystal cells, a data drive circuit to invert a polarity of the data voltage in response to a polarity control signal and to output the data voltage to the data lines in response to a source output enable signal, a gate drive circuit to supply the gate pulse to the gate lines, and a POL/SOE logic circuit to invert the polarity control signal for every frame period except at Nth-multiple frame period (where N is a positive integer), wherein the POL/SOE logic circuit controls the polarity control signal at every Nth-multiple frame period such that the polarity of the data voltage is the same as the previous frame period and controls a pulse width of the source output enable signal at every Nth-multiple frame period to be longer than for the other frame periods.Type: ApplicationFiled: December 28, 2007Publication date: July 17, 2008Inventors: Hong Sung Song, Woong Ki Min, Byung Jin Choi, Dong Il Kim, Su Hyuk Jang
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Publication number: 20080170025Abstract: A liquid crystal display device includes a liquid crystal display panel including a plurality of data lines, a plurality of gate lines, and a plurality of liquid crystal cells, the plurality of liquid crystal cells associated to a first and second liquid crystal cell groups, a data drive circuit to supply a data voltage to the data lines in response to a polarity control signal, a gate drive circuit to supply a scan pulse to the gate lines, and a polarity control circuit to generate different polarity control signals for each frame period and to control data voltage frequencies of the first and second liquid crystal cell groups to be different from each other.Type: ApplicationFiled: December 28, 2007Publication date: July 17, 2008Inventors: Hong Sung Song, Ju Young Lee, Woong Ki Min, Dong Hoon Cha, Sun Young Choi, Su Hyuk Jang
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Publication number: 20080170026Abstract: In one embodiment of the present invention, a display module includes a display screen divided in a vertical direction into screen regions in each of which an image can be independently displayed. A control device for controlling an image display operation of the display module includes: upper- and lower-screen data selectors for each dividing an input image signal in accordance with a corresponding one of the screen regions; and upper- and lower-screen time-division gradation conversion blocks for each generating a display signal for each of a plurality of sub-frames from an image signal, corresponding to a corresponding one of the screen regions, which is outputted from a corresponding one of the data selectors. This makes it possible to provide an image display device in which, even when a sub-frame display is carried out, the voltage of an image signal can be applied to a pixel for a longer time so as to be sufficiently applied to the pixel.Type: ApplicationFiled: March 7, 2006Publication date: July 17, 2008Inventor: Tomoyuki Ishihara
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Publication number: 20080170027Abstract: A driving apparatus of a liquid crystal display device includes a multiplexer array for performing time-division on inputted pixel data to supply time-divided pixel data, a digital-to-analog converter array for converting the time-divided pixel data into pixel voltage signals, and a demultiplexer array for driving data lines in a time-division manner to supply the converted pixel voltage signals, wherein the digital-to-analog converter array receives a plurality of pixel voltage signal levels inputted from an external source and generates the pixel voltage signals using the pixel voltage signal level with a voltage at least one-step higher in absolute value than the original pixel voltage signal level in correspondence to at least one pixel data.Type: ApplicationFiled: November 21, 2003Publication date: July 17, 2008Inventors: Chang Su Kyeong, Seung Kuk Ahn
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Publication number: 20080170028Abstract: To provide an active matrix display device in which power consumption of a signal line driver circuit can be suppressed, so that power consumption of the entire memory can be suppressed. A plurality of memory circuits which can write data of a video signal input to a pixel in one line period and can hold the data are provided in a signal line driver circuit of a display device. Then, the data held in each memory circuit is input to a pixel of a corresponding line as a video signal. By providing two or more memory circuits in a driver circuit, pieces of data of video signals corresponding to two or more line periods can be concurrently held in the memory circuits.Type: ApplicationFiled: January 10, 2008Publication date: July 17, 2008Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventor: Yasunori YOSHIDA
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Publication number: 20080170029Abstract: A scan driver may include first signal processor adapted to receive an initializing signal, a base clock signal, a base negative clock signal and a feedback signal, and to generate a first output signal, a second signal processor adapted to receive the initializing signal, the first output signal, the base clock signal and the base negative clock signal, and to generate a second output signal and a second negative output signal, a first logic gate adapted to receive the base clock signal and the second output signal, and to generate a first clock signal, and a second logic gate adapted to receive the base clock signal and the second negative output signal, and to generate a second clock signal.Type: ApplicationFiled: October 19, 2007Publication date: July 17, 2008Inventor: Mihae Kim
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Publication number: 20080170030Abstract: An image processing apparatus includes a first display image data generation unit which acquires image data and generates first display image data including information about a plurality of pixels, a histogram generation unit which generates a histogram showing luminance distribution of the pixels contained in the first display image data, a second display image data generation unit which generates second display image data by taking a domain corresponding to a predetermined percent with high luminance among the entire luminance distribution area as a cutoff domain in the histogram generated by the histogram generation unit, setting up the luminance of the pixels in the cutoff domain to 100%, and changing the luminance of the pixels whose luminance is in a range from 0% to a cutoff luminance value which is a minimum luminance of the pixels in the cutoff domain to be 0 to 100% while maintaining the luminance distribution, an image display unit which has a backlight and displays an image on the basis of the secType: ApplicationFiled: January 15, 2008Publication date: July 17, 2008Applicant: Seiko Epson CorporationInventor: Hiroshi Oshige
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Publication number: 20080170031Abstract: A method for performing chromatic adaptation while displaying an image having a plurality of pixels within a display device includes: deriving chromaticity coordinate information of an external environment; and utilizing a chromatic adaptation model to perform calculations regarding each pixel according to the chromaticity coordinate information to adjust a plurality of pixel values outputted to a display module of the display device.Type: ApplicationFiled: January 15, 2008Publication date: July 17, 2008Inventor: Chia-Hui Kuo
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Publication number: 20080170032Abstract: A presentation system includes a display for displaying data, and an input device for generating a distinctive mark on the display. The distinctive mark has pulse width modulation characteristics. A processor carries out an action determined by the distinctive mark. An image capture device remote from the display detects the distinctive mark on the display. The image capture device is coupled to the processor, and includes a detector. The detector detects the distinctive mark on the display, determines location of the distinctive mark relative to the display, and determines the pulse width modulation characteristics of the distinctive mark corresponding to the action to be carried out by the processor.Type: ApplicationFiled: February 28, 2007Publication date: July 17, 2008Applicant: STMicroelectronics (Research & Development) LimitedInventor: Jeffrey Raynor
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Publication number: 20080170033Abstract: A method, system, and device are provided for displaying a graphical pointer at a location on a display area. The method includes displaying, with an information processing system, a display image at a display area. The pointing device captures an image corresponding to at least a portion of the display image at the display area in a field of view of the pointing device. A location within the display image corresponding to a location in the at least the portion of the display image in the field of view of the pointing device is determined. Optionally, a virtual pointer is caused to be displayed at the determined location within the display image.Type: ApplicationFiled: January 15, 2007Publication date: July 17, 2008Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventor: Mark D. Schultz
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Publication number: 20080170034Abstract: A wireless computer mouse is provided. The wireless computer mouse includes an upper housing having an opening, a press key put around the opening of the upper housing, a containing base coupled to a bottom of the upper housing and for placing the receiver, a lower housing coupled to the base, and a base coupled between the upper housing and the press key as a hinge. By pressing the press key, the upper housing and the lower housing are unfolded such that forms a predetermined angle, and the receiver is flicked from the containing base.Type: ApplicationFiled: October 26, 2007Publication date: July 17, 2008Inventors: Yung-Chao Lin, Ya-Chun Pan, Hung-Chien Huang
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Publication number: 20080170035Abstract: An object of the present invention is to provide a directionality judging method for an operation key in a direction detecting switch, capable of detecting a key operation in any direction; and superior as the cursor can be freely moved by one operation key.Type: ApplicationFiled: December 22, 2005Publication date: July 17, 2008Applicant: SUNARROW LTD.Inventor: Toshiaki Uotani
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Publication number: 20080170036Abstract: When a directional event is triggered, enable the directional event and start to time a first time period, and disable any select event triggered within the first time period. When a select event is triggered, start to time a second time period. If a directional event is triggered within the second time period, disable the select event and enable the directional event. If no directional event is triggered within the second time period, enable the select event. Thus the false trigger of a select event would not enable an unwanted event.Type: ApplicationFiled: November 8, 2007Publication date: July 17, 2008Inventor: Wo-Chin Chen
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Publication number: 20080170037Abstract: An electronic device and method of operating comprises a housing; a base coupled to the housing; and an electro-mechanical transducer coupled to the base, the electro-mechanical transducer configured to operate in a resonant mode and output a haptic effect upon receiving a drive signal at a predetermined drive frequency. In an embodiment, the electro-mechanical transducer further comprises a plurality of electro-mechanical transducers, each electro-mechanical transducer configured to operate in its respective resonant mode and output a respective haptic effect upon receiving a drive signal having a predetermined drive frequency. Alternatively or additionally, the electro-mechanical transducer further comprises a plurality of spaced apart electro-mechanical devices coupled thereto in a serial fashion between a first end proximal to the base and a second end distal to the base.Type: ApplicationFiled: March 14, 2008Publication date: July 17, 2008Applicant: Immersion CorporationInventors: Juan Manuel Cruz-Hernandez, Danny A. Grant, Vincent Hayward
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Publication number: 20080170038Abstract: A shape-changeable mouse includes a first housing, a second housing and a connecting member. Via the connecting member, the first housing is connected with the second housing. The second housing is rotated with respect to the first housing to change the shape of the mouse.Type: ApplicationFiled: March 16, 2007Publication date: July 17, 2008Applicant: PRIMAX ELECTRONICS LTD.Inventor: Hsiao-Lung Chiang