Including Optical Means Patents (Class 345/697)
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Publication number: 20150070412Abstract: A projection display device is disclosed herein. The projection display device includes an image processing module and a light source driver. The image processing module is configured for receiving an image data and generating a display signal which includes an image period and a black state period. The light source driver is configured for generating a light driving signal to drive a projection light source, wherein the light driving signal includes a first segment and a second segment in the black state period, and the average amplitude of the light driving signal in the second segment is lower than the average amplitude of the light driving signal in the image period. A driving method is disclosed herein as well.Type: ApplicationFiled: February 26, 2014Publication date: March 12, 2015Applicant: Delta Electronics, Inc.Inventors: Chung-Yi YANG, Bor WANG, Cheng-Hsun CHANG
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Publication number: 20150062205Abstract: The invention provides a gray level control method for outputting a total gray level during a total period, including: dividing the total period into M unit periods; alternatively outputting a gray level “0” or a selected gray level during each unit period; and integrating the gray levels output during the M unit periods to obtain the total gray level, wherein during each of N successive unit periods of the M unit periods the selected gray level is a first gray level, and during each of the remaining (M-N) unit periods the selected gray level is lower than the first gray level.Type: ApplicationFiled: May 15, 2014Publication date: March 5, 2015Applicant: DELTA ELECTRONICS, INC.Inventor: Yu-Chang Wang
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Patent number: 8970461Abstract: Disclosed herein is a display including: a reflective image display section having pixels arranged in the display region; and a lighting device adapted to irradiate light to the image display section from diagonally in front, in which the light scattering characteristics in the display region are angle-dependent, and in which the lighting device irradiates light whose intensity distribution is adjusted so that when the display region displaying an image having an equal gray level is viewed from a given viewing position, the image luminance is uniform.Type: GrantFiled: February 16, 2012Date of Patent: March 3, 2015Assignee: Japan Display West Inc.Inventors: Tatsuya Yata, Kenji Tanase, Susumu Kimura, Takafumi Suzuki
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Publication number: 20150042704Abstract: A display system which includes a first image display; a second image display; a reflective polariser disposed between the first image display and the second image display, with the second image display disposed on a viewing side of the display system; and a controller for addressing image data to the first image display and the second image display, wherein the controller, the first image display and second image display are configured to selectively operate in accordance with: a first display function in which the first image display is visible to a viewer through the second image display and the second image display appears substantially transparent to the first image display; a second display function in which the display system is in a reflective mode that conveys information to a user; and a third display function in which images are addressed to both the first image display and the second image display.Type: ApplicationFiled: October 27, 2014Publication date: February 12, 2015Inventors: Nathan James SMITH, Paul Antony GASS
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Patent number: 8952978Abstract: A display device includes a display panel unit having predetermined viewing angle characteristics. An image data conversion unit is included that converts original image data to be displayed on the display panel unit so that a luminance difference in a low gray level region does not substantially change between before and after conversion and so that a luminance difference in a high gray level region changes in such a manner that a luminance difference obtained after conversion becomes smaller than a luminance difference obtained before conversion. A data holding unit holds predetermined oblique-view image data corresponding to the predetermined viewing angle characteristics of the display panel unit. An image combining unit combines image data obtained through conversion by the image data conversion unit with the predetermined oblique-view image data to generate composite image data. The composite image data is displayed on the display panel unit.Type: GrantFiled: May 6, 2011Date of Patent: February 10, 2015Assignees: Sony Corporation, Sony Mobile Communications Inc.Inventors: Takeshi Ogita, Takao Yagi
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Publication number: 20150022568Abstract: The white balance for a high brightness region and a low brightness region is improved in an image display device using MEMS and a laser light source. An image processing unit of the device superposes a signal based on a first measured value of a light quantity at a first temperature on a picture signal, during its blanking period, which is supplied to the laser light source, and superposes a high frequency signal on the picture signal during its effective scanning period. An amplification factor of the light source drive unit is changed so that a second measured value at a second temperature comes close to the first measured value at the first temperature as a target value based on the second measured value at which the light quantity of light generated at the laser light source is measured at the second temperature different from the first temperature on the signal based on the first measured value.Type: ApplicationFiled: March 6, 2014Publication date: January 22, 2015Applicant: Hitachi Media Electronics Co., Ltd.Inventors: Yasunori ISHII, Fumio HARUNA
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Publication number: 20150022569Abstract: An image display device adapted to display an image based on an image signal includes a light source, an adjustment section adapted to adjust light intensity of a light emitted from the light source based on a feature amount related to a luminance of the image, a modulation section adapted to modulate the adjusted light based on the image signal, and a control section adapted to suppress reduction of the light intensity by the adjustment section in a case in which a predetermined condition related to temperature of the modulation section is satisfied.Type: ApplicationFiled: July 14, 2014Publication date: January 22, 2015Inventor: Tatsuya IGUCHI
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Publication number: 20150015623Abstract: A display panel and a display device are provided. The display panel includes a substrate, multiple data line groups which are arranged on the substrate sequentially and adjacently, and multiple gate line groups which are arranged on the substrate sequentially and adjacently. The display panel further includes multiple pixel electrode array units which are arranged in an array on the substrate. The pixel electrodes in the pixel electrode array unit are electrically connected with the data lines and the gate lines via switch elements. Data driving signals received by any two adjacent pixel electrodes in a same column have opposite polarities. The pixel electrode array unit includes a first pixel electrode, a second pixel electrode, a third pixel electrode, and a fourth pixel electrode. Data driving signals received by any two adjacent pixel electrodes of a same type in the same row have opposite polarities.Type: ApplicationFiled: March 14, 2014Publication date: January 15, 2015Applicants: Tianma Micro-Electronics Co., Ltd., Shanghai Tianma Micro-Electronics Co., Ltd.Inventors: Kang YANG, Jun Ma, Tianyi Wu, Hao Chen
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Patent number: 8928708Abstract: An object is to suppress crosstalk. A display device includes a pixel portion which includes a first display region, a second display region, and a non-light-emitting region provided between the first display region and the second display region; and a parallax barrier which includes a first light control region, a second light control region, and a light-transmitting region provided between the first light control region and the second light control region. The first light control region overlaps with the first display region, the second light control region overlaps with the second display region, and the center of the width of the light-transmitting region overlaps with the non-light-emitting region.Type: GrantFiled: July 10, 2012Date of Patent: January 6, 2015Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Jun Koyama, Hiroyuki Miyake, Kouhei Toyotaka, Hikaru Harada, Makoto Kaneyasu
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Publication number: 20150002563Abstract: An electronic device is provided with a display such as a liquid crystal display. The display includes a display module having an array of display pixels and a backlight unit configured to provide backlight to the array of display pixels. The array of display pixels includes display pixels in a central region surrounded by display pixels in a border region. To minimize light leakage from the display, display control circuitry drives the display pixels in the central region according to a first gray level mapping function and drives the display pixels in the border region according to a second gray level mapping function. Light leakage reduction structures may be used to reduce the intensity of backlight received by display pixels in the border region relative to the intensity of backlight received by display pixels in the central region.Type: ApplicationFiled: June 26, 2013Publication date: January 1, 2015Inventors: Cheng Chen, Nicholas A. Rundle
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Publication number: 20140375706Abstract: A stereoscopic image display includes a display panel; a polarization control panel that is positioned on the display panel and controls the polarization direction of light incident from the display panel; a lens panel positioned on the polarization control panel and having a plurality of lens shaping portions; a first driver for driving the display panel; a second driver for supplying a driving voltage to the polarization control panel; a timing controller for controlling the first driver and the second driver; and a sensing unit that senses the driving voltage supplied to the polarization control panel and outputs a decision signal for deciding whether the sensed driving voltage is in normal condition or abnormal condition.Type: ApplicationFiled: December 13, 2013Publication date: December 25, 2014Applicant: LG DISPLAY CO., LTD.Inventors: Changho Lee, Seungho Baek, Jooah Kim
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Publication number: 20140375707Abstract: A light source module adapted to provide a first illumination beam to a display apparatus is provided. The display apparatus includes a display panel for displaying a 2D/3D image. The light source module includes a first wedge-shaped light guide plate, a first light emitting device, a second light emitting device, and a light source driving module. The first wedge-shaped light guide plate has a first and second light incident surfaces and an optical grating pattern. The first light emitting device and the second light emitting device are respectively disposed beside the first light incident surface and the second light incident surface. In a 2D/3D image display mode, the light source driving module controls to turn on the first/second light emitting device for providing the first illumination beam to the first wedge-shaped light guide plate. A method for driving the display apparatus is also provided.Type: ApplicationFiled: June 9, 2014Publication date: December 25, 2014Applicant: Young Lighting Technology Inc.Inventors: Jhong-Hao Wu, Chin-Ku Liu
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Patent number: 8917223Abstract: There are provided an illumination unit and a display apparatus which are capable of improving convenience for users. The illumination unit includes a light source section including a laser light source, an optical device allowing a laser beam from the laser light source to pass therethrough, a drive section allowing the optical device to oscillate, and a control section performing one or both of control of decreasing brightness of emitted light from the light source section and control of outputting to the outside information that oscillation of the optical device has been stopped when the oscillation of the optical device has been stopped during drive operation by the drive section.Type: GrantFiled: February 7, 2012Date of Patent: December 23, 2014Assignee: Sony CorporationInventor: Hiroshi Isobe
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Publication number: 20140362131Abstract: A color filter array or a backplane for a color display has first and second areas with substantially different optical properties. The invention also provides a color filter with a low resistivity. The invention further provides a color display utilizing fluorescent or phosphorescent material.Type: ApplicationFiled: February 6, 2014Publication date: December 11, 2014Inventors: Richard J. Paolini, JR., Stephen J. Telfer
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Publication number: 20140347411Abstract: There is provided a driving method for a display, which includes a display unit and a phase modulation unit. The display unit includes a plurality of pixel rows and generates image signals having a polarization direction. The phase modulation unit includes two oppositely disposed electrodes and an LC layer sandwiched between the two electrodes. The driving method changes a potential difference provided on the two electrodes of the phase modulation unit to control the twist of the LC layer thereby changing the polarization direction of the image signals generated by the display unit and passing through the phase modulation unit.Type: ApplicationFiled: August 8, 2014Publication date: November 27, 2014Inventors: Heng-Cheng TSENG, Ra-Bin LI, Mu-Kai KANG
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Publication number: 20140253613Abstract: The invention relates to a display device including a plurality of pixels forming an image, and an optical plate arranged opposite the image and having transparency areas configured to allow the light from the pixels to at least partially pass therethrough. The optical plate further includes at least one array of functional elements corresponding to an electronic and/or mechanical function. The functional elements are inserted between the transparency areas and arranged such that the light emitted by the pixels is directed so as to pass through the transparency areas without intercepting the arrays of functional elements, so as to render the arrays of functional elements invisible or quasi-invisible to an observer of the display device. The invention can be used in any type of display device in which functions other than display itself must be integrated in a visually discreet manner.Type: ApplicationFiled: October 10, 2012Publication date: September 11, 2014Inventor: Joël Gilbert
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Publication number: 20140218422Abstract: A display device according to embodiments of the present disclosure includes a determination unit to determine a display mode, a light generator to selectively irradiate a 2D light or a hologram 3D light, a spatial light modulator to selectively display a 2D image or a hologram 3D image, and a control unit that controls the light generator to selectively irradiate the 2D light or the hologram 3D light and controls the spatial light modulator to modulate the 2D light or the hologram 3D light irradiated from the light generator to display the 2D image or the hologram 3D image according to the display mode determined by the determination unit.Type: ApplicationFiled: August 8, 2013Publication date: August 7, 2014Inventors: Woojae PARK, Dowoo Kwon, Wonseok Moon
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Publication number: 20140210879Abstract: The present invention provides a display device which can display a clear stereoscopic image by distinctly separating a left image from a right image, and a method of driving the display device. The display device includes a display panel that sequentially displays a left image and a right image, and a polarizing panel disposed on the display panel, the polarizing panel to change a polarization direction of at least one of the left image and the right image so that polarization directions of the left image and the right image are different from each other. Each left image and a right image includes a black image.Type: ApplicationFiled: March 31, 2014Publication date: July 31, 2014Applicant: Samsung Display Co., Ltd.Inventors: Hee-Bum PARK, Bong-Hyun You
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Publication number: 20140210875Abstract: A two dimensional/three dimensional (2D/3D) switchable display module comprising a display panel, an optical module, a gate driver and a data driver is disclosed. The display panel comprises a plurality of sub pixels electrically coupled to a plurality of gate lines and a plurality of data lines. The optical module is disposed on the display panel for changing light path from the display panel. The gate driver provides a plurality of scan signals to the gate lines. The data driver provides a plurality of data signals to the data lines. The gate driver provides the same scan signal to more than one gate lines at a same time or the data driver provides the same data signal to more than one data lines at a same time for displaying images.Type: ApplicationFiled: January 25, 2013Publication date: July 31, 2014Applicant: INNOLUX CORPORATIONInventors: Naoki SUMI, Kazuyuki HASHIMOTO, Toshihiko ARAKI
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Patent number: 8791969Abstract: A display device includes a first display panel facing a second display panel with a liquid crystal layer between them. The first display panel has a first gate line, a second gate line spaced apart from the first gate line, a first and second storage lines both spaced apart from the first gate line, first and second switching elements controlled by a first gate signal applied through the first gate line, a first sub-pixel electrode connected to the first switching element, a second sub-pixel electrode connected to the second switching element, a third switching element controlled by a second gate signal applied through the second gate line, and a coupling electrode connected to the third switching element and having a portion overlapping the second storage line. Different voltages are applied to the first storage line and the second storage line.Type: GrantFiled: June 10, 2011Date of Patent: July 29, 2014Assignee: Samsung Display Co., Ltd.Inventors: Yong-Jo Kim, Yoon-Jang Kim, Yoon-Sung Um, Jong-Hee Na, Young-Min Choi
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Publication number: 20140204134Abstract: A projection system is provided that uses an additional light valve in series with the conventional color splitting-converging prism in order to increase the contrast of a projected image, wherein bit sequences are generated for the additional light valve that do not result in interference with the conventional color light valve bit sequences.Type: ApplicationFiled: January 18, 2013Publication date: July 24, 2014Inventor: Lawrence GOERZEN
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Publication number: 20140198141Abstract: An image display apparatus, including: a light source which emits coherent light; a spatial modulation element which diffracts the coherent light by displaying a diffraction grating pattern corresponding to an input image and which displays a virtual image by the diffracted light; and a control unit which calculates a total brightness representing a sum total of brightnesses of all pixels of the input image, and controls at least one of the light source and the spatial modulation element in such a manner that, if the total brightness has decreased, the virtual image is displayed at a lower brightness than a reference virtual image displayed when the input image is used directly.Type: ApplicationFiled: October 18, 2012Publication date: July 17, 2014Applicant: PANASONIC CORPORATIONInventors: Kenichi Kasazumi, Keiji Sugiyama, Kakuya Yamamoto
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Publication number: 20140198142Abstract: Dual modulator displays are disclosed incorporating a phosphorescent plate interposed in the optical path between a light source modulation layer and a display modulation layer. Spatially modulated light output from the light source modulation layer impinges on the phosphorescent plate and excites corresponding regions of the phosphorescent plate which in turn emit light having different spectral characteristics than the light output from the light source modulation layer. Light emitted from the phosphorescent plate is received and further modulated by the display modulation layer to provide the ultimate display output.Type: ApplicationFiled: March 17, 2014Publication date: July 17, 2014Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Lorne A. Whitehead, Gregory John Ward, Louis D. Silverstein, Helge Seetzen
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Publication number: 20140184671Abstract: A display device, and an optical compensation system and an optical compensation method thereof. A display device including a display panel including pixels; and a display driving circuit for driving the display panel and including: a storage unit for storing defect pixel information indicating which of the pixels are detected as defect pixels based on a brightness trend line of the pixels, and for storing compensation parameters regarding the defect pixels; and a brightness compensation unit for converting image data corresponding to the defect pixels according to the defect pixel information and the compensation parameters.Type: ApplicationFiled: June 13, 2013Publication date: July 3, 2014Inventor: Gil-Jae LEE
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Publication number: 20140176626Abstract: A liquid crystal display device includes a display screen which displays an input image based on input image data. In a case where the display screen displays an image having a uniform grayscale, the display screen displays a check-patterned image on a part that includes a luminance boundary. This makes it possible to provide (i) a displays device capable of certainly reducing display unevenness so as to increase display quality and (ii) a method of driving the display device.Type: ApplicationFiled: August 29, 2012Publication date: June 26, 2014Applicant: Sharp Kabushiki KaishaInventor: Takashi Sasaki
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Patent number: 8730211Abstract: In an exemplary optical touch circuit and a LCD device using the same, an optical sensing unit is turned on or off according to an irradiation light intensity and accordingly generates a first signal. A first signal readout unit is electrically coupled to the optical sensing unit and turned on or off according to a first operation timing sequence and accordingly outputs the first signal. A touch reference unit is for providing a reference voltage. A second signal readout unit is turned on or off according to a second operation timing sequence and accordingly outputs the reference voltage. The touch sensing unit is electrically coupled to the first and second signal readout units and uses a voltage difference between the first signal and the reference voltage as a basis to determine that whether the optical touch circuit is touched or not.Type: GrantFiled: June 7, 2012Date of Patent: May 20, 2014Assignee: AU Optronics Corp.Inventors: Yi-Ru Cheng, Ya-Ling Hsu, Yueh-Hung Chung, Hsueh-Ying Huang
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Patent number: 8730282Abstract: A 2D/3D switchable backlight unit and an image display device employing the same are provided. The 2D/3D switchable backlight unit includes a light source, a light guide plate in which light emitted from the light source is total-internal-reflected, and a switch array comprising a plurality of switches that selectively contact a first surface of the light guide plate and emit light by frustrated total internal reflection inside the light guide plate. In 2D mode, each of the switches contacts the first surface of the light guide plate. In 3D mode, some of the switches contact the first surface of the light guide plate.Type: GrantFiled: February 4, 2011Date of Patent: May 20, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Jung-mok Bae, Hoon Song, Yun-woo Nam, Hong-seok Lee, Mi-jeong Song
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Patent number: 8717446Abstract: The present invention evaluates the quality of an image shot by a terminal device in a state closer to that seen with the eye. A computer evaluates the quality of an image obtained by shooting a photographic subject including a periodic pattern that fluctuates periodically in one direction. A Fourier transform unit accomplishes a two-dimensional Fourier transform on the image to obtain two-dimensional spatial frequency spectrum components. An analysis unit analyzes the resolution of the image on the basis of spectrum components of spatial frequencies included in the periodic pattern, among the two-dimensional spatial frequency spectrum components obtained by the Fourier transform unit, and analyzes the deterioration of the image on the basis of spectrum components other than these.Type: GrantFiled: January 11, 2011Date of Patent: May 6, 2014Assignee: NEC Casio Mobile Communications Ltd.Inventor: Kozo Masuda
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Publication number: 20140118428Abstract: This disclosure provides systems, methods, and apparatus for an analog or multistate electromechanical systems display devices including movable absorber together with a movable reflective layers. In one aspect, an electromechanical systems display device may include a movable reflector assembly and a movable absorber assembly. The absorber assembly may be disposed between the reflector assembly and a substrate. The absorber assembly may be configured to move to an absorber white state position proximate the reflector assembly and defining a first gap when the reflector assembly is in a reflector white/black position. The absorber assembly may be configured to move to a closed position closer to the substrate, defining a second gap, when the reflector assembly is in the reflector white/black position. The reflector assembly may be configured to move from the reflector white/black position to increase a height of the second gap when the absorber assembly is in the closed position.Type: ApplicationFiled: November 1, 2012Publication date: May 1, 2014Applicant: QUALCOMM MEMS TECHNOLOGIES, INC.Inventors: Jian J. Ma, John Hyunchul Hong
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Patent number: 8711188Abstract: A reading device includes a computing device and an image input device coupled to the computing device for capturing low resolution images and high resolution images. The reading machine also includes a computer program product residing on a computer readable medium. The medium is in communication with the computing device and includes instructions to operate in a plurality of modes to optimize performance for specific uses of the reading device and process low and high resolution images during operation of at least one of the plurality of modes.Type: GrantFiled: February 9, 2010Date of Patent: April 29, 2014Assignee: K-NFB Reading Technology, Inc.Inventors: Raymond C. Kurzweil, Paul Albrecht, James Gashel, Lucy Gibson
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Patent number: 8711081Abstract: A driving apparatus and a driving method of a backlight module are provided. The backlight module includes multiple LEDs. The driving apparatus includes at least one thermal sensor, an optical sensor, and a processor. The thermal sensor is for detecting a working temperature of the LEDs. The optical sensor is for detecting brightness and color of the backlight module after a calibration function is enabled, to obtain difference values of the detected brightness and color with respect to predetermined brightness and color. The processor is for providing at least one initial thermal compensation table, to determine working currents of the LEDs associated with the working temperature. The processor further is for calibrating a content of the initial thermal compensation table corresponding with a current working temperature of the LEDs and storing the calibrated thermal compensation table as the initial thermal compensation table after the calibration function is enabled.Type: GrantFiled: April 6, 2010Date of Patent: April 29, 2014Assignee: Young Lighting Technology Inc.Inventors: Chiao-Chih Yang, Chih-Hua Lin, Wei-Jen Chou, Chien-Chung Hsiao
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Publication number: 20140104330Abstract: A projection apparatus for projecting an image of a display unit by emitting light from a light source includes a detection unit configured to detect flicker information indicating how easily flicker occurs based on input image information, and a control unit configured to control the number of light emissions of the light source in a time period during which an image in one frame is displayed by the display unit based on the flicker information detected by the detection unit.Type: ApplicationFiled: October 1, 2013Publication date: April 17, 2014Applicant: CANON KABUSHIKI KAISHAInventor: Eisaku Tatsumi
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Patent number: 8698858Abstract: A transmissive display apparatus includes a transparent display panel, a display unit which projects a display light toward a display area of the transparent display panel, a ratio change unit which is provided to the display area, is configured to be capable of changing a light transmittance, and is configured to be capable of changing a ratio of a light quantity of a rear face reflected light reaching a viewpoint relative to a light quantity of a front face reflected light reaching the viewpoint, and a control unit which alternately switches the ratio change unit between a first state and a second state. The ratio change unit lowers, in the first state, the ratio by reducing the light quantity of the rear face reflected light that reaches the viewpoint in comparison to the second state. The light transmittance increases in the second state in comparison to the first state.Type: GrantFiled: June 1, 2012Date of Patent: April 15, 2014Assignee: Panasonic CorporationInventors: Akira Kurozuka, Shinichi Kadowaki, Kakuya Yamamoto, Kenichi Kasazumi, Keiji Sugiyama
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Patent number: 8692841Abstract: A method for modifying color data in a display system is implemented using hardware circuitry. The method includes receiving first-color data associated with a first bit depth, the first-color data including a first-color data value. The method also includes receiving second-color data associated with a second bit depth that is less than the first bit depth, the second-color data including a second-color data value that corresponds to the first-color data value. The method also includes normalizing the second-color data according to the first bit depth for generating normalized second-color data. The method also includes adding an offset value to each data value of the normalized second-color data to generate offset second-color data, the offset second-color data including an offset second-color data value that corresponds to the first-color data value. The method also includes determining a modified second-color data value using the first-color data value and the offset second-color data value.Type: GrantFiled: December 9, 2011Date of Patent: April 8, 2014Assignee: Samsung Display Co., Ltd.Inventor: Anthony Botzas
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Patent number: 8692855Abstract: A compact arrangement of 3D filters is provided by a light source such as an LED and a spectral filter positioned to divide light from the light source into first and second lights having first and second spectral properties. A plurality of the compact sources may be arranged to illuminate (e.g., backlight) a modulator of a display (e.g., an LCD display). The modulator may be configured such that one region is illuminated by the first light and another region is illuminated by the second light (un modulated buffer between regions may be utilized to prevent crosstalk between the regions). The first and second lights are then modulated, for example, according to first and second channels of a 3D display.Type: GrantFiled: January 18, 2011Date of Patent: April 8, 2014Assignee: Dolby Laboratories Licensing CorporationInventors: Chun Chi Wan, Henry Ip
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Patent number: 8681192Abstract: The present invention provides a sensor device and an electronic apparatus each of which does not make malfunction derived from outside ambient light such as sunlight. In the sensor device, an ADC outputs, to one of two input terminals of a comparison circuit, second data which is a digital value ADCOUT corresponding to a current Iin?I1 being the result of subtraction from a current I1 from a current Iin and which is larger than a threshold Data_th.Type: GrantFiled: January 9, 2012Date of Patent: March 25, 2014Assignee: Sharp Kabushiki KaishaInventors: Takahiro Inoue, Isamu Kawabe
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Publication number: 20140078199Abstract: A 3D display device and an operating method thereof, the 3D display device comprising: a display screen (10), for displaying two-dimensional left and right eye pictures; a magnetic field device (20), disposed right in front of the display screen (10) on a light emitting side of the display screen and generating a magnetic field having a varying frequency in synchronization with a refresh frequency of the two-dimensional left and right eye pictures of the display screen (10), thus rotating a direction of a polarization plane of polarized light emitted from the display screen (10).Type: ApplicationFiled: November 21, 2012Publication date: March 20, 2014Applicant: BOE Technology Group Co., Ltd.Inventors: Xiongcan Zuo, Junhwan Lim, Junrui Zhang
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Publication number: 20140062960Abstract: A display apparatus includes a display panel, a first camera and a second camera disposed adjacent to the display panel; and a distance determining part determining a position of a body portion of a viewer and a distance of the body portion of the viewer from the display panel based on a first image of the first camera and a second image of the second camera.Type: ApplicationFiled: January 15, 2013Publication date: March 6, 2014Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Ji-Woong KIM, Bo-Ram KIM, Jong-Yoon LEE, Su-Bin PARK
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Publication number: 20140055433Abstract: An integrated building display and shading system formed of a plurality of exterior building panels arranged in an array, each exterior building panel representing one pixel. A given pixel resides in a first state when a first excitation state is applied to the exterior building panel and can be changed to reside in a second state when a second excitation state is applied to the exterior building panel, thus allowing an image to be presented on the array. The excitation states are controlled by an electronic control system including a frame buffer and an illumination source. Different types of variable property glass can be used such that a first state is a transparent state and the second state is an opaque state or color state (e.g. red, green, blue). The integrated building display and shading system can be illuminated via natural light, or via UV light, or via a projector.Type: ApplicationFiled: February 15, 2013Publication date: February 27, 2014Applicant: Obscura DigitalInventors: Travis Threlkel, Niklas Lundback
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Patent number: 8643681Abstract: A color display device including: at least one spatial light modulation element forming a display picture by modulated light obtained by modulating illumination light, a color sequential light generation device changing in a time series the illumination light or the modulated light into multiple groups of different color lights in one frame of a display period of the display picture, a control device controlling the spatial light modulator, and a color sequential light generation device based on the input picture data. The control device controls the spatial light modulator and the color sequential light generation device to change the ratio of the display time of each color of the reflected light time-shared in the display period of the frame depending on the character and/or the set value of the input picture data.Type: GrantFiled: March 1, 2008Date of Patent: February 4, 2014Assignees: Silicon Quest Kabushiki-Kaisha, Olympus CorporationInventors: Taro Endo, Fusao Ishii, Yoshihiro Maeda, Hirotoshi Ichikawa, Hirokazu Nishino
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Publication number: 20140028743Abstract: A display device 2 includes: a display panel 50 having a display area; and a plurality of position information patterns 3 arranged on the display area and each representing information regarding a position thereof on the display area. Each position information pattern 3 is formed of a plurality of optically readable marks 31 that are formed from a material that transmits visible light. On the display area, a plurality of sub-pixels 5R, 5G, and 5B whose colors are different from each other are repeatedly aligned in a determined alignment direction. A length L between both ends of the mark 31 in the alignment direction meets a relational expression of n×P+w?L?(n+1)×P?w (n is an integer of 0 or greater) where a width of the sub-pixel in the alignment direction is w and a pitch between the pixels 5 in the alignment direction is P.Type: ApplicationFiled: June 27, 2013Publication date: January 30, 2014Inventors: Hiroshi YAMAGUCHI, Kazuhiro YAMADA, Takashi YAMADA, Yosuke ASAI
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Publication number: 20140028744Abstract: The present invention includes a light source unit that emits light to an information pattern including a plurality of marks that can optically be read; an image reading unit that reads information from the information pattern; and a case that houses the light source unit and the image reading unit, and has on its leading end an opening through which light from the light source unit is emitted to the information pattern and into which light for reading the information by the image reading unit is incident. The case has on its leading end a projecting portion formed to have a diameter larger than other parts of the case.Type: ApplicationFiled: July 24, 2013Publication date: January 30, 2014Applicant: PANASONIC CORPORATIONInventors: Hideyuki HASHI, Kazuhiro YAMADA, Naoto YUMIKI
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Publication number: 20140015872Abstract: An EL display device capable of performing clear multi-gradation color display and electronic equipment provided with the EL display device are provided, wherein gradation display is performed according to a time-division driving method in which the luminescence and non-luminescence of an EL element (109) disposed in a pixel (104) are controlled by time, and the influence by the characteristic variability of a current controlling TFT (108) is prevented. When this method is used, a data signal side driving circuit (102) and a gate signal side driving circuit (103) are formed with TFTs that use a silicon film having a peculiar crystal structure and exhibit an extremely high operation speed.Type: ApplicationFiled: September 19, 2013Publication date: January 16, 2014Applicant: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yukio YAMAUCHI, Takeshi FUKUNAGA
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Publication number: 20140015871Abstract: A displaying method for field sequential color displays using two color fields to produce a full color image is disclosed. The displaying method includes: providing a target full color image, displaying a first color field and displaying a second color field. The target full color image is formed by a first color image optical stimulus, a second color image optical stimulus and a third color image optical stimulus. The first color field displays the first color image optical stimulus and a first part of the third color image optical stimulus, while the second color field displays the second color image optical stimulus and a second part of the third color image optical stimulus, which compensates the shortage of the third color image optical stimulus in the first color field. The target full color image is generated by displaying the first and second color fields in sequence, so as to decrease the displaying frequency of field sequential color displays.Type: ApplicationFiled: September 18, 2013Publication date: January 16, 2014Applicant: AU OPTRONICS CORP.Inventors: YU-KUO CHENG, YI-PAI HUANG, YI-RU CHENG, HAN-PING D. SHIEH
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Patent number: 8624806Abstract: A pixel circuit and an organic light-emitting diode (OLED) display using the pixel circuit is provided. The pixel circuit includes: an OLED; a third N-channel metal-oxide semiconductor (NMOS) transistor coupled to a data line and a first scan line and configured to apply a data signal to a first node; a storage capacitor having one terminal coupled to the first node and the other terminal coupled to a second node; a fourth NMOS transistor coupled between a first power and the second node and configured to apply a voltage of the first power to the second node; a first NMOS transistor having a first electrode, a second electrode, and a gate electrode coupled to the second node; and a second NMOS transistor coupled between the second node and the first electrode of the first NMOS transistor and configured to diode-connect the first NMOS transistor.Type: GrantFiled: March 2, 2010Date of Patent: January 7, 2014Assignee: Samsung Display Co, Ltd.Inventors: Bo-Yong Chung, Keum-Nam Kim
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Publication number: 20130342591Abstract: A method for extending dynamic range of a display that can attenuate brightness to match scene brightness is disclosed. Standard RGB sub pixel filtering as well as neutral density sub pixel filtering is performed. The color addressability of the display is utilized to extend the dynamic range of the emitted energy by more than one order of magnitude with the standard RGB sub pixel filtering. The standard filtering extends the dynamic range of the emitted energy by more than one order of magnitude, while the neutral density filtering extends the dynamic range of the emitted energy by two or more orders of magnitude.Type: ApplicationFiled: June 20, 2013Publication date: December 26, 2013Inventor: Stephen F. Sagan
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Publication number: 20130335463Abstract: A 2D/3D switchable display device comprising a display module, an optical control module and a driving module is disclosed. The optical control module comprises a plurality of optical controlling elements. The display module is disposed opposite to the optical control module and thereby relative information is generated. The driving module provides a corresponding pixel data matrix to the display module based on the optical controlling elements and the relative information.Type: ApplicationFiled: June 11, 2013Publication date: December 19, 2013Inventors: Pei-Hsuan Chiang, Chiao-Fu Yu
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Publication number: 20130335462Abstract: A stereoscopic image display apparatus having patterned retarder is described. The stereoscopic image display apparatus having patterned retarder includes an array substrate, a polarized plate and a film-type patterned retarder (FPR). The array substrate includes a gate driver, a source driver, a plurality of pixel units and a plurality of transistor control modules. Each pixel unit corresponds to first scan line, second scan line and third scan line respectively. Each of the pixel units includes at least two data lines wherein the first scan line, the second scan line and the third scan line are insulatedly interlaced with the at least two data lines. A polarized plate receives a light beam passing through the array substrate to generate a linear polarized light beam. A film-type patterned retarder disposed on the polarized plate receives the light beam passing through the array substrate for generating the three-dimensional image on the polarized glasses.Type: ApplicationFiled: July 5, 2012Publication date: December 19, 2013Applicant: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Chengliang Ye, Hung-Lung Hou
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Patent number: 8599465Abstract: A method for making an electrowetting device includes: (a) forming a surrounding wall on an upper surface of a substrate to surround a microchamber, the surrounding wall having an inner surface surrounding the microchamber and a top surface above the inner surface, the upper surface of the substrate being non-hydrophobic; (b) coating the surrounding wall and the upper surface of the substrate with a hydrophobic coating material; (c) removing a portion of the hydrophobic coating material formed on the top surface of the surrounding wall, thereby exposing the top surface of the surrounding wall; and (d) disposing a liquid into the microchamber.Type: GrantFiled: September 23, 2010Date of Patent: December 3, 2013Assignee: Incha HsiehInventor: Incha Hsieh
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Integrated circuit device, electronic apparatus and method for manufacturing of electronic apparatus
Patent number: 8587568Abstract: An integrated circuit device includes a host I/F, an information register, and a control section. The information register stores wave selection information for selecting waveform information which defines a waveform of a drive signal of the electro-optical device. Waveform information selected by the wave selection information stored in the information register from among a plurality of pieces of waveform information is loaded to an information memory at the time of manufacturing an electronic apparatus including the electro-optical device. The control section controls the display of the electro-optical device on the basis of the waveform information read from the information memory at the time of an actual operation of the electronic apparatus.Type: GrantFiled: March 24, 2010Date of Patent: November 19, 2013Assignee: Seiko Epson CorporationInventor: Hideki Ogawa