Patents Issued in April 19, 2007
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Publication number: 20070085771Abstract: In a sustain period, a positive voltage is applied to an address electrode during at least one part of a period for applying a last sustain discharge pulse that is gradually increased and applied to a scan electrode. In this manner, an occurrence of misfiring between the address electrode and the sustain electrode of a discharge cell that is sustain-discharged without having been addressed in the next consecutive subfield is reduced or prevented.Type: ApplicationFiled: October 5, 2006Publication date: April 19, 2007Inventors: Suk-Jae Park, Woo-Joon Chung, Jin-Ho Yang, Seong-Joon Jeong, Tae-Seong Kim, Seung-Min Kim
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Publication number: 20070085772Abstract: A plasma display apparatus and a method of driving the same are disclosed. In the plasma display apparatus, a scan driver supplies scan signals to a plurality of scan electrodes using a first scan type in a first subfield of a frame, and supplies the scan signals to the plurality of scan electrodes using a second scan type, which directs the scan driver to supply the scan signals in an order different from the first scan type, in a second subfield of the frame. Further, the scan driver consecutively supplies a first scan signal and a second scan signal to a first scan electrode and a second scan electrode of the plurality of scan electrodes. A supply end time point of the first scan signal is later than a supply start time point of the second scan signal.Type: ApplicationFiled: October 13, 2006Publication date: April 19, 2007Inventors: Kirack PARK, Jongwoon Bae, Seonghwan Ryu, Yoonjoo Cho, Dooyong Wang
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Publication number: 20070085773Abstract: A plasma display apparatus is disclosed. The plasma display apparatus includes a plasma display panel, a first driver, and a second driver. The plasma display panel includes a sustaining electrode and a data electrode intersecting the sustaining electrode. The first driver supplies a positive sustain pulse and a negative sustain pulse to the sustaining electrode in a sustain period. The second driver supplies a positive voltage to the data electrode prior to an application point of time of the positive sustain pulse.Type: ApplicationFiled: October 13, 2006Publication date: April 19, 2007Inventor: Seonghak Moon
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Publication number: 20070085774Abstract: A method and apparatus for driving a plasma display panel and improving the display characteristics through multi-discharge phenomenon is provided. The driving method is used for providing energy to light up at least a display unit in the plasma display panel and includes the following steps. Before providing any external energy, an energy recovery circuit provides internally stored energy so that the display unit has a first discharge through a resonance effect initiated by the internally stored energy. After the first discharge, external energy is provided to the display unit to trigger a second discharge. Thereafter, the energy recovery circuit stops providing internally stored energy to the display unit. Similarly, external energy to the display unit is also stopped. After the second discharge, the energy in the display unit is returned to the energy recovery circuit to serve as internally stored energy.Type: ApplicationFiled: November 8, 2005Publication date: April 19, 2007Inventors: Chi-Hsiu Lin, Han-Yu Chao
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Publication number: 20070085775Abstract: A plasma display apparatus is disclosed. The plasma display apparatus includes a plasma display panel, a source capacitor, an inductor, and an energy recovery/supply controller. The source capacitor supplies energy to the plasma display panel, and recovers energy from the plasma display panel. The inductor is connected in series to the source capacitor. The energy recovery/supply controller is connected between the plasma display panel and the inductor, for forms an energy supply path and an energy recovery path.Type: ApplicationFiled: October 12, 2006Publication date: April 19, 2007Inventor: Jeong Choi
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Publication number: 20070085776Abstract: An electron emission type display apparatus has on a flat plane a matrix layout of multiple light-emitting elements which are connected to cross-points of longitudinal and lateral common electrodes, for sequentially turning on a line of light-emitting elements connected to a common electrode. In such the device, distortion takes place in drive waveform since a low-pass filter (LPF) is formed by a combination of the wiring resistance of the common electrode and the capacitance of a light-emitting element. To avoid such waveform distortion, the width of a light-emitting element driving voltage pulse is caused to be greater than the width of a scan voltage pulse.Type: ApplicationFiled: September 19, 2006Publication date: April 19, 2007Inventors: Mikio Shiraishi, Eiji Miwa, Toshiyuki Kurita, Katsumi Ashizawa
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Publication number: 20070085777Abstract: An image display apparatus includes a display panel having an electron source, an acceleration electrode for accelerating electrons emitted from the electron source and phosphors for emitting light by collision of electrons accelerated by the acceleration electrode, and a detector for detecting a current flowing through the acceleration electrode during a non-display period. In addition, a controller is provided to decrease the luminance level, stop display driving or transmit warning information when the current detected becomes more than a predetermined value.Type: ApplicationFiled: November 28, 2006Publication date: April 19, 2007Applicant: CANON KABUSHIKI KAISHAInventors: Mitsutoshi Kuno, Osamu Sagano, Akira Fujii
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Publication number: 20070085778Abstract: To provide a highly reliable display device whose electrical element is applied with a low voltage. The display device is an active matrix FED display device whose pixel has an individual extraction gate electrode, an emitter array, a driving transistor which is connected to the emitter array in series, a potential control circuit which controls the potential of the extraction gate electrode, and a circuit which includes a switching element and a voltage holding element. By varying the potential of the extraction gate electrode in accordance with Vgs of the driving transistor, the active matrix driving method is performed by connecting a driving transistor to the emitter array in series and voltage which is applied to the driving transistor can be reduced.Type: ApplicationFiled: October 11, 2006Publication date: April 19, 2007Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTDInventor: Yasunori Yoshida
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Publication number: 20070085779Abstract: This invention relates to methods and apparatus for driving emissive, in particular organic light emitting diodes (OLED) displays using multi-line addressing (MLA) techniques. Embodiments of the invention are particularly suitable for use with so-called passive matrix OLED displays.Type: ApplicationFiled: September 29, 2005Publication date: April 19, 2007Inventors: Euan Smith, Paul Routley, Jonathan Halls
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Publication number: 20070085780Abstract: Systems for controlling pixels are provided. A representative system comprises a scan driver comprises: a data signal line operative to provide data to the pixel; and a scan driver operative to control illumination of the pixel during sequential time periods such that, if data provided by the data signal line is different between a first time period and a second time period, brightness of the pixel differs during a third time period and a sequential fourth time period. The pixel is illuminated during the third time period and the fourth time period.Type: ApplicationFiled: October 19, 2005Publication date: April 19, 2007Inventors: Du-Zen Peng, Shih-Chang Chang
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Publication number: 20070085781Abstract: A data driving circuit for driving pixels of a display to display images with uniform brightness may include a gamma voltage unit that generates gray scale voltages, a digital-analog converter that selects, as a data signal, one of the gray scale voltages using first data, a decoder that generates second data using the first data, a latch for storing the first data and the second data, a current sink that receives a predetermined current from the pixel during a first partial period of a complete period for driving the pixel based on the selected gray scale voltage, a voltage controller that controls a voltage value of the data signal using the second data and a compensation voltage generated based on the predetermined current, and a switching unit that supplies the data signal to the pixel during any partial period of the complete period elapsing after the first partial period.Type: ApplicationFiled: July 25, 2006Publication date: April 19, 2007Inventors: Bo Chung, Do Ryu, Oh Kwon
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Publication number: 20070085782Abstract: A capacitance setting line is disposed at the top end of a pixel, a light emission setting line is disposed at the bottom end of the pixel, and a gate line is disposed at the center between both the lines. A selection transistor, a potential control transistor and a capacitor are disposed between the gate line and a capacitance setting line. A short-circuit transistor, a drive transistor and a drive control transistor are disposed between the gate line and the light emission setting line. With such an arrangement, the efficient arrangement of wiring contacts can be performed, and an aperture ratio can be increased.Type: ApplicationFiled: October 13, 2006Publication date: April 19, 2007Inventors: Shoichiro Matsumoto, Yasunori Kinpara
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Publication number: 20070085783Abstract: An active matrix type EL display device is provided, which is capable of suppressing the unevenness of luminance display due to the unevenness of the characteristics of TFTs which constitute pixels, or due to variations in the environmental temperature at which the display device is used. The active matrix type EL display is driven by a time gray scale method, and is capable of keeping the drain current of each of its EL driving TFTs constant by operating each of the EL driving TFTs in a saturation region in an ON state. Accordingly, constant current can be made to flow in each of the EL elements, whereby it is possible to provide an active matrix type EL display device with accurate gray scale display and high image quality.Type: ApplicationFiled: December 13, 2006Publication date: April 19, 2007Inventor: Jun Koyama
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Publication number: 20070085784Abstract: A driver apparatus for an electroluminescent display comprising a plurality of rows to be scanned and a plurality of columns which intersect the rows to form a plurality of pixels, comprises addressable row drivers, each row driver applying an output voltage to its associated row when addressed. The value of the output voltage is approximately equal to the numerical average of the threshold voltage for the electroluminescent display and the voltage required to provide the maximum desired pixel luminance for the electroluminescent display. Bipolar column drivers each supply an output voltage to its associated column. The output voltage is either positive or negative depending on the desired luminance of the pixels. The range of both positive and negative column output voltages is from zero volts to about one half of the difference between the threshold voltage and the voltage to provide the desired maximum pixel luminance for the electroluminescent display.Type: ApplicationFiled: September 11, 2006Publication date: April 19, 2007Applicant: iFIRE TECHNOLOGY CORP.Inventor: Willy Liu
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Publication number: 20070085785Abstract: A drive apparatus is provided which can calculate a suitable APL value when driving a color display panel using PLE control. Further, a drive apparatus is provided which can inhibit output capacity of a power supply circuit by controlling display brightness according to a lighting rate of a pixel. An APL calculation means 20 is provided with a weighting means 22A for performing weighting according to a light emitting current rate of each color at the time of displaying a gray scale with respect to a picture signal of each of the colors R, G, and B. Being averaged by an averaging means 23, each signal weighted by this weighting means 22A acquires an APL value. The peak brightness control means 29 is controlled using this APL value so that PLE operation of controlling a peak brightness of the picture signal is realized.Type: ApplicationFiled: October 12, 2006Publication date: April 19, 2007Applicant: TOHOKU PIONEER CORPORATIONInventors: Mayumi Ozaki, Katsuhiro Kanauchi, Akinori Hayafuji
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Publication number: 20070085786Abstract: The present invention is an apparatus with balance-dimming capability for controlling the brightness of keypad backlight. The keypad backlight includes a plurality of light emitting diodes (LEDs). The apparatus includes a switch and a pulse-width modulation (PWM) generator. The switch is coupled between a power supply and the plurality of LEDs. The PWM generator is coupled to the power supply and the switch, and is capable of generating a PWM signal and controlling the brightness of the plurality of LEDs.Type: ApplicationFiled: June 15, 2006Publication date: April 19, 2007Inventors: Jacky Lin, Crystal Cheng, Mingkwang Han
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Publication number: 20070085787Abstract: The present invention relates to a light emitting device where difference of brightness of pixels can be reduced when the same data currents are applied to the pixels. The light emitting device includes anode electrode layers, cathode electrode layers, pixels and cathode lines. The anode electrode layers are disposed in a first direction. The cathode electrode layers are disposed in a second direction. The pixels are formed in cross areas of the anode electrode layers and the cathode electrode layers. The cathode lines are coupled to the cathode electrode layers. Here, in one cathode electrode layer, at least one of resistors between parts corresponding to pixels except a first pixel next to a cathode line corresponding to the cathode electrode layer has resistance smaller than resistor between a part corresponding to the first pixel and a part corresponding to a pixel next to the first pixel.Type: ApplicationFiled: June 20, 2006Publication date: April 19, 2007Inventor: Do Kim
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Publication number: 20070085788Abstract: A method drives a spatial light modulation device to record an image into the device. The device includes first and second light modulation layers. The method includes exposing the device to imagewise light while applying a first voltage between electrodes of the first light modulation layer. If the second light modulation layer has such a characteristic that a curve of an intensity of light, which has the same wavelength as the imagewise light and is applied to the second light modulation layer, versus a reflectivity of the second light modulation layer after finishing applying the light has a local maximum point, an intensity of the imagewise light in the exposing is larger than an intensity, which the curve has at the local maximum point, and in the exposing, the second light modulation layer has a reflectivity lower than a reflectivity, which the curve has at the local maximum point.Type: ApplicationFiled: July 12, 2006Publication date: April 19, 2007Applicant: FUJI XEROX CO., LTDInventors: Haruo Harada, Hiroshi Arisawa, Yasunori Okano, Makoto Gomyou, Taiju Gan
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Publication number: 20070085789Abstract: A color display system and a method of displaying an image uses at least four primary colors, where one of the primary colors can achieve substantially greater brightness levels than the closest of the three other primary colors. Where six primary colors are used, color saturation requirements and brightness requirements for the display system can be effectively separated between different primary color elements. Therefore, there is no longer such a severe requirement to use only materials that can simultaneously provide high color saturation and brightness. Accordingly, a color display system, with two sets of three primary colors can utilize a wider range of materials, and simultaneously achieve higher color saturation and brightness levels.Type: ApplicationFiled: September 27, 2004Publication date: April 19, 2007Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventor: Adrianus De Vaan
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Publication number: 20070085790Abstract: A flat panel display device includes a display panel, a memory storing a compensation value that corresponds to a panel defect location, the panel defect location being where any one of a brightness and a color difference exists compared to other part of the display panel, a compensating unit to adjust image data to be displayed in the panel defect location using the compensation value, and a driver to apply the adjusted image data from the compensating unit to the display panel.Type: ApplicationFiled: June 30, 2006Publication date: April 19, 2007Inventors: In Chung, Chul Jang, Sung Jo, Deuk Lee, Jong Kim, Jong Hwang
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Publication number: 20070085791Abstract: A gray-scale method for a flat panel display is provided, which includes the following: A plurality of scan-line initial signals are provided during a frame period. The scan-line initial signals are transmitted sequentially. According to the scan-line initial signals, the scan-lines are scanned. In which, the frame period includes X horizontal periods. And each horizontal period includes Y initial periods. X and Y each is a positive integer. The scan-line initial signal Kij is appeared during the jth initial period of the ith horizontal period. In which, the i and j at one to one correspondence. The i and j each is a positive integer where 1?i?X and 1?j?Y.Type: ApplicationFiled: December 26, 2005Publication date: April 19, 2007Inventor: Der-Yuan Tseng
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Publication number: 20070085792Abstract: A display device and a gray-scale voltage generating device for the display device are provided. The gray-scale voltage generating device includes a reference voltage source, a curve-shifting control unit, and a gray-scale voltage output unit. By correcting the output voltage of the curve-shifting control unit, the devices are able to shift the Gamma curve of the gray-scale voltage output unit. Therefore, the original Gamma curve can be shifted without having distortion.Type: ApplicationFiled: January 5, 2006Publication date: April 19, 2007Inventor: Ching-Wu Tseng
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Publication number: 20070085793Abstract: A display device for displaying display data includes a display panel having pixel sections in a matrix form, a scanning circuit which selects a line of the pixel sections, a generation circuit which generates a plurality of gray-scale voltages based on a reference voltage, and a selection circuit which selects a gray-scale voltage corresponding to the display data from the plurality of gray-scale voltages, and outputs the gray-scale voltage thus selected to a pixel section of the display panel. The generation circuit one of increases and decreases a steady-state current of the generation circuit at a second period within one scanning period of the scanning circuit.Type: ApplicationFiled: December 12, 2006Publication date: April 19, 2007Inventors: Yasuyuki Kudo, Atsuhiro Higa, Yoshikazu Yokota, Hiroshi Kurihara, Kazunari Kurokawa
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Publication number: 20070085794Abstract: A display device includes a display panel having display elements, arranged in a matrix, a drain driver which supplies gradation voltages corresponding to image data to the display elements, a gate driver which scans lines of the display elements for supplying the gradation voltage, and a data generation circuit which divides image data for one frame into a plurality of pieces of sub-field image data in a time direction. The data generation circuit operates to convert one piece of sub-field image data into bright gradation data which has a higher brightness than the inputted image data which has been inputted, and to convert another piece of sub-field image data into dark gradation data which has a lower brightness than the inputted image data.Type: ApplicationFiled: December 14, 2006Publication date: April 19, 2007Inventors: Kazuyoshi Kawabe, Junichi Hirakata
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Publication number: 20070085795Abstract: A driving circuit of a display panel includes a plurality of data lines equidistantly arrayed in a substrate of the display panel and including a plurality of first data lines and a plurality of second data lines, a plurality of scan lines equidistantly arrayed in the substrate and perpendicular to the plurality of the data lines, a plurality of first thin-film transistors coupled to a first side of a scan line of the plurality of the scan lines and the plurality of the first data lines for controlling pixels in the first side of the scan line, and a plurality of second thin-film transistors coupled to a second side of the scan line and the plurality of the second data lines for controlling pixels in the second side of the scan line.Type: ApplicationFiled: April 6, 2006Publication date: April 19, 2007Inventors: Hsin-Ta Lee, Yung-Chou Chan
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Publication number: 20070085796Abstract: A light emitting device and an element substrate which are capable of suppressing variations in the luminance intensity of a light emitting element among pixels due to characteristic variations of a driving transistor without suppressing off-current of a switching transistor low and increasing storage capacity of a capacitor. According to the invention, a depletion mode transistor is used as a driving transistor. The gate of the driving transistor is fixed in its potential or connected to the source or drain thereof to operate in a saturation region with a constant current flow. A current controlling transistor which operates in a linear region is connected in series to the driving transistor, and a video signal for transmitting a light emission or non-emission of a pixel is inputted to the gate of the current controlling transistor through a switching transistor.Type: ApplicationFiled: November 22, 2006Publication date: April 19, 2007Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventors: Mitsuaki Osame, Aya Anzai, Yu Yamazaki
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Publication number: 20070085797Abstract: A thin film transistor array panel includes: a plurality of pixels including pixel electrodes arranged in a matrix and switching elements connected to the pixel electrodes; first and second gate lines that are connected to the switching elements extend in a row direction and correspond to one row of pixel electrodes; and first and second data lines that are connected to the switching elements extend in a column direction and correspond to three pixel columns. In the thin film transistor array panel, when the three pixel columns are referred to as first to third pixel columns, the pixel electrodes in the first and second pixel columns are connected to the first data line through the switching elements, and the pixel electrodes in the third pixel column are connected to the second data line through the switching elements.Type: ApplicationFiled: October 10, 2006Publication date: April 19, 2007Inventor: Dong-Gyu Kim
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Publication number: 20070085798Abstract: A display device is provided with a display panel, a data line driving circuitry, and a scan line driving circuitry. The display panel includes: a plurality of data lines extending in a column direction; a plurality of scan lines extending in a row direction; a plurality of pixels disposed at respective intersections of the plurality of data lines and the plurality of scan lines, and a dummy data line arranged in parallel to the plurality of data lines. The data line driving circuitry drives the plurality of data lines and the dummy data line. The scan line driving circuitry drives the plurality of scan lines. The data line driving circuitry feeds a dummy signal to the scan line driving circuitry through the dummy data line. The scan line driving circuitry drives the scan lines in response to the dummy signal.Type: ApplicationFiled: October 13, 2006Publication date: April 19, 2007Inventors: Yoshiharu Hashimoto, Hiroshi Hayama, Toru Kume
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Publication number: 20070085799Abstract: A liquid crystal display panel includes a pixel having a switching element electrically connected to a gate wiring and a source wiring and a liquid crystal capacitor electrically connected to the switching element. A timing controller receives a mode selecting signal corresponding to an impulsive driving mode, and outputs a first common voltage corresponding to the impulsive driving mode. A common voltage converter converts the first common voltage into a second common voltage of analog type, and outputs the second common voltage to the liquid crystal capacitor. Therefore, in the LCD apparatus operated in an impulsive driving method, a common voltage is selectively applied to the liquid crystal display panel, thus improving a display quality.Type: ApplicationFiled: October 2, 2006Publication date: April 19, 2007Applicant: SAMSUNG ELECTRONICS CO., LTDInventors: Sung-Jin HONG, Cheol-Woo PARK, Chang-Hun LEE, Hee-Seop KIM, Jun-Woo LEE
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Publication number: 20070085800Abstract: A liquid crystal display driving device that reduces horizontal crosstalk and a liquid crystal display employing the driving device are presented. The driving device includes a common voltage generator that generates first and second common voltages, and the common voltage generator includes a first capacitor provided between a first terminal for outputting the first common voltage and a second terminal for outputting the second common voltage. Since the capacitor is provided between two output terminals of the two common voltages, it reduces the distortion components of the common voltages, thereby reducing horizontal crosstalk. The invention reduces the number of parts in the driving device conferring the added benefit of reduced manufacturing cost.Type: ApplicationFiled: October 11, 2006Publication date: April 19, 2007Inventors: Sung-Hee Lee, Seoung-Bum Pyoun
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Publication number: 20070085801Abstract: In a flat panel display, a display panel has a data line, a gate line and a pixel electrically connected to the data line and the gate line, and a timing controller outputs control signals and an image data signal. A data driver drives the data line in response to a portion of the control signals and the image data signal, and a gate driver drives the gate line in response to a different portion of the control signals. A control circuit controls the data driver such that the data line is maintained in a reset state for a predetermined time after a power-on is initiated. Thus, the flat panel display may prevent the display of the error-images on the liquid crystal panel.Type: ApplicationFiled: May 23, 2006Publication date: April 19, 2007Inventors: Woo-Il Park, Dae-Seop Kim
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Publication number: 20070085802Abstract: A timing control method and device for LCD panel is provided. The timing control device comprises a mode selection unit storing timing parameters corresponding to resolutions of the LCDs, with the timing parameters updateable; a video device outputting a video signal; and a logic unit receiving the video signal and fetching corresponding timing parameters according to a resolution of the video signal and outputting a control signal according to the timing parameter.Type: ApplicationFiled: August 3, 2006Publication date: April 19, 2007Applicant: AU OPTRONICS CORP.Inventors: Hui-Lung Yu, Yung-Zhi Wu
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Publication number: 20070085803Abstract: A circuit generates a reference voltage in inverse proportion to the variation in temperature to control the gate-on voltage for a gate line of a liquid crystal display so that the liquid crystal display may display an image without distortion.Type: ApplicationFiled: July 21, 2006Publication date: April 19, 2007Inventor: Hong-Sig Chu
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Publication number: 20070085804Abstract: In a driving circuit for an electro-optical device in which a transmissive display mode and a reflective display mode can be switched, the driving circuit includes an image-processing circuit that converts image data for reflective display for the reflective display mode to image data for transmissive display for the transmissive display mode; and a control circuit that outputs the image data for the transmissive display converted by the image-processing circuit in the transmissive display mode, and stops driving the image-processing circuit to output the image data for the reflective display in the reflective display mode.Type: ApplicationFiled: September 28, 2006Publication date: April 19, 2007Applicant: SANYO EPSON IMAGING DEVICES CORPORATIONInventor: Kenichi TAJIRI
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Publication number: 20070085805Abstract: An electro-optical device includes a pair of a first substrate and a second substrate between which an electro-optical material is held, a first electrode formed in each of a plurality of pixel portions disposed in an pixel area on one of the first substrate and the second substrate, a first pixel circuit formed in the pixel portion on the one of the first substrate and the second substrate and including a first active element that controls the first electrode, a second electrode formed in each of the plurality of pixel portions disposed in the pixel area on the one of the first substrate and the second substrate or the other one of the first substrate and the second substrate, the second electrode being formed in association with the first electrode, and a second pixel circuit formed in the pixel portion on one of the first substrate and the second substrate or the other one of the first substrate and the second substrate and including a second active element that controls the corresponding second electrode,Type: ApplicationFiled: October 4, 2006Publication date: April 19, 2007Applicant: SEIKO EPSON CORPORATIONInventors: Tatsuya Ishii, Keiji Fukuhara
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Publication number: 20070085806Abstract: In a liquid crystal display, a driving voltage generating circuit generates a driving power voltage and a gate on voltage substantially in inverse proportion to a temperature variation of an ambient temperature. A data driver outputs a data signal in response to the driving power voltage and a gate driver outputs a gate signal in response to the gate on voltage. A liquid crystal display panel displays an image in response to the data signal and the gate signal.Type: ApplicationFiled: October 6, 2006Publication date: April 19, 2007Inventor: Seung-Hwan Moon
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Publication number: 20070085807Abstract: A method of controlling a liquid crystal display (LCD) integrated within a sensing device for operation in cold temperature is provided. The method includes providing electrical power to the LCD, providing an electrical signal to the LCD to update displayed information, measuring the ambient temperature proximate the LCD and making adjustments to the power and update information supplied to the LCD based on the ambient temperature. Another aspect of the invention includes a field device including an LCD, an electronic control module configured to provide power and communication signals to the LCD, and a temperature sensor coupled to the electronic control module. The electronic control module is configured to measure the temperature proximate the LCD and control power and communication supplied to the LCD based on the temperature at the LCD.Type: ApplicationFiled: October 17, 2006Publication date: April 19, 2007Applicant: Rosemount Inc.Inventor: Robert Hedtke
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Publication number: 20070085808Abstract: Systems for driving displays are provided. In this regard, an representative system for driving a display comprises a signal driving circuit having a first shift register and a second shift register coupled in series to the first shift register. The signal driving circuit is operative to drive a display according to inputs provided by only two clock signals.Type: ApplicationFiled: October 19, 2005Publication date: April 19, 2007Inventor: Ching-Hone Lee
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Publication number: 20070085809Abstract: A backup shift register module having at least two backup shift registers is used to repair a defective main shift-register module. A normally open link is provided between the input of first backup shift register and the input of each odd-numbered main shift register, and between the output of first backup shift register and the input of each even-numbered main shift register. A normally open link is provided between the input of second backup shift register and the input of each even-numbered main shift register, and between the output of second backup shift register and the input of each odd-numbered main shift register. If one main shift register is defective, the input and output of the defective shift register are disconnected from the cascade link, and the normally open links are connected to the input of the defective shift register and the output of the next shift register are connected.Type: ApplicationFiled: December 13, 2005Publication date: April 19, 2007Inventors: Chun-Ching Wei, Yang-En Wu, Wei-Cheng Lin
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Publication number: 20070085810Abstract: An apparatus and method for driving a liquid crystal display device are disclosed in which the response speed of the liquid crystal can be increased without using a digital memory. The driving apparatus includes a liquid crystal panel with gate lines and data lines arranged perpendicularly to each other, a gate driver that supplies a gate pulse to the gate lines, and a data driver. The data driver samples an input N-bit digital data signal to generate an analog data voltage, generates a modulated data voltage for acceleration of a response speed of the liquid crystal according to an M-bit data value of the sampled digital data signal, mixes the modulated data voltage with the analog data voltage, and supplies the mixed data voltage to the data lines.Type: ApplicationFiled: May 15, 2006Publication date: April 19, 2007Inventors: Seok Lee, Nam Kim
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Publication number: 20070085811Abstract: A gate driving circuit and a display device having the same, in which the gate lines can be divided into p groups using p shift registers and p-time gate lines can be driven using a signal shifted by 1/p, wherein p is an arbitrary natural number of three or more. Accordingly, since a number of gate lines can be driven using the plurality of shift registers, high-resolution display devices can be manufactured at a low cost.Type: ApplicationFiled: September 14, 2006Publication date: April 19, 2007Inventor: Hyun Lee
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Publication number: 20070085812Abstract: A gate driving apparatus and image display device using the same and driving method thereof comprises a start pulse generator which generates a second gate start pulse by a logic operation of a first gate start pulse and a gate output enable signal, a shift register which generates a shift signal by sequentially shifting the second gate start pulse in accordance with a gate shift clock, and an output unit which outputs the shift signal in accordance with the gate output enable signal.Type: ApplicationFiled: September 27, 2006Publication date: April 19, 2007Inventors: Seung O., Soon Cho
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Publication number: 20070085813Abstract: A flat panel display device includes an electron emission substrate; an image forming substrate spaced apart from the electron emission substrate; a spacer disposed between the electron emission substrate and the image forming substrate; a detector coupled to the electron emission substrate for detecting a temperature value of the flat panel display device; a temperature controlling part for receiving the receiving the temperature value and for controlling a temperature of the electron emission substrate based on the received temperature value; and a cooler for cooling the flat panel display device to be at the temperature controlled by the temperature controlling part.Type: ApplicationFiled: September 19, 2006Publication date: April 19, 2007Inventor: Byong Lee
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Publication number: 20070085814Abstract: A display device comprising a display panel (62) having a plurality of separately addressable pixels (64) for displaying an image, a first group (64a) of said pixels being configured to provide emergent light in a first polarisation state (P), and a second group (64b) of said pixels being configured to provide emergent light in a second polarisation state (S), a barrier layer (68) in optical association with the display panel to partially occlude said emergent light, the barrier layer having a first plurality of regions (72) for passing light in one of the first or second polarisation states, and a second plurality of regions (74) for passing light in the other of the first and second polarisation states and a third plurality of regions (76) for occluding said emergent light, and wherein the first (72) and second (74) regions of the barrier layer are respectively registered with the first (64a) and second (64b) groups of pixels so as to provide different views of an image displayed by said display panel.Type: ApplicationFiled: September 9, 2004Publication date: April 19, 2007Applicant: Koninklijke Philips Electronics N.V.Inventors: Willem Ijzerman, Ciska Doornkamp
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Publication number: 20070085815Abstract: A display, a method of controlling contrast of a liquid crystal display, and a liquid crystal display. The display includes a liquid crystal panel and a controller for controlling contrast voltage to the liquid crystal panel. The display further includes a temperature sensor operably attached to the controller. A display contrast of the liquid crystal panel is based on the contrast voltage. The contrast voltage is based on a sensed temperature of the temperature sensor. The method includes sensing a temperature. A contrast voltage to the liquid crystal display is controlled based on the sensed temperature. The liquid crystal display includes means for sensing a temperature; and means for controlling contrast voltage to the liquid crystal display based on the sensed temperature.Type: ApplicationFiled: October 14, 2005Publication date: April 19, 2007Inventors: Christopher Oesterling, Mingheng Wang, Matthew Przybyleski
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Publication number: 20070085816Abstract: A system and method are described herein for controlling the white balance and providing gamma correction without compromising gray-scale dynamic range in a flat panel liquid crystal display (LCD). According to one embodiment of the present invention, the flat panel LCD includes electronic circuitry for coupling to a host computer to receive a white-balance adjustment control signal, and electronic circuitry for receiving image data to be rendered on the flat panel LCD. Further, the flat panel LCD of one embodiment is configured for coupling to a color-sensing device to receive optical characteristics data of the flat panel LCD detected by the color-sensing device. The white balance adjustment mechanisms include the provision of two or more light sources of differing color temperature, whose brightness can be independently varied (and distributed through a light distribution mechanism) to adjust color temperature without altering the grayscale resolution of the RGB colors.Type: ApplicationFiled: November 14, 2006Publication date: April 19, 2007Applicant: Silicon Graphics, Inc.Inventors: Daniel Evanicky, Oscar Medina
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Publication number: 20070085817Abstract: A method for driving a liquid crystal display (200) includes: providing a liquid crystal display having a plurality of pixel units and a backlight; dividing a frame time into a plurality of sub-frames; defining each pixel unit to have two states, namely on or off, in each of the sub-frames; defining the backlight to have a gradation luminance and two states, namely on or off, in each of the sub-frames; and synchronously controlling the state of each pixel unit, a time period of the on state of each pixel unit, the gradation luminance of the backlight, and a time period of the on state of the backlight in each of the sub-frames to make a resulting total luminous flux in each pixel unit corresponding to a gray scale of an image to be displayed in the frame time to be the same as that of other pixel units.Type: ApplicationFiled: October 13, 2006Publication date: April 19, 2007Inventors: Eddy(Ging-Li) Chen, Long-Kuan Chen, Sz Chen, Chih-Sheng Chang, Wen-Chieh Liao, Chueh-Ju Chen, Tsau Hsieh
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Publication number: 20070085818Abstract: A system and method of use of a storage capacitor to improve the appearance and addressing characteristics of an electronically driven display. The capacitor is formed by the overlap of portions of electrodes used to address different pixels, or by the overlap of an addressing line and a conductor. An insulator layer situated between the capacitor electrodes can be the same insulator layer present in an FET transistor used to address the pixel. Methods of use of capacitors to achieve improved display addressing are disclosed.Type: ApplicationFiled: December 19, 2006Publication date: April 19, 2007Applicant: E INK CORPORATIONInventors: Karl Amundson, Paul Drzaic, Peter Kazlas
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Publication number: 20070085819Abstract: A method and system for controlling electrophoretic and other bi-stable displays (310). Coded data (605, 610, 615) for driving the display is stored in memory (320) for different pixel transitions and different temperatures. The coded data includes voltage level and timing information for the different pixel transitions. A portion (705, 710, 715, 720, 725, 730) of the coded data is retrieved by a controller (100) such as an ASIC based on a selected pixel transition, temperature, and update mode. The portion of the coded data, which may include fixed length frame instructions, is decoded to provide decoded data. The decoded data is used to provide voltage waveforms for driving the display.Type: ApplicationFiled: October 14, 2004Publication date: April 19, 2007Applicant: Koninklijke Philips Electronics, N.V.Inventors: Guofu Zhou, Jan Kamer, Mark Johnson, Neculai Ailenei
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Publication number: 20070085820Abstract: A force feedback apparatus of the present invention includes: jetting means that includes a nozzle and that can control a jet amount or a jet direction of gas or liquid jetted from the nozzle; jet control means for controlling the jet amount or the jet direction of the gas or the liquid according to a position or an orientation of a receiver that receives pressure by the gas or the liquid jetted from the jetting means so as to provide force feedback to an operator. When the receiver has a concave shape of a diameter D, intervals for placing the nozzles in the jetting means are set such that at least one nozzle exists within a region having a diameter of a constant×D.Type: ApplicationFiled: July 14, 2005Publication date: April 19, 2007Applicant: NIPPON TELEGRAPH AND TELEPHONE CORP.Inventors: Yuriko Suzuki, Minoru Kobayashi, Katsuhiko Ogawa