Light-controlling Display Elements Patents (Class 345/84)
  • Publication number: 20130286051
    Abstract: A mobile communication terminal can comprise a hand-held housing, a microprocessor disposed within the housing, a display incorporated into the housing and equipped with a backlight, a display adapter configured to control the display, a video memory configured to store data representing images displayed by the display, and a wireless communication interface at least partially disposed within the housing. The mobile communication terminal can be configured, responsive to detecting a byte sequence representing an image of decodable indicia being transferred to the video memory, to increase an intensity of the backlight to a pre-defined level, increase a timeout associated with the backlight to a pre-defined value, disable a power save mode for the display, and/or change a display color scheme to a pre-defined color scheme.
    Type: Application
    Filed: April 27, 2012
    Publication date: October 31, 2013
    Applicant: Honeywell International Inc. doing business as (d.b.a.) Honeywell Scanning and Mobility
    Inventors: Sean Philip Kearney, Thomas Amundsen, Bejamin Hejl, Mark Schmidt, Taylor Smith, Timothy Williams
  • Patent number: 8570447
    Abstract: A digital display device including an electronic display screen. The device has a frame and a support extendable rearward from the digital display device. The support includes a corner portion and two elongate members extending from the corner portion in two substantially mutually perpendicular directions to respective mounting portions. The mounting portions are hinged respectively to two adjacent sides of a rear face of the frame along a common axis and at respective positions allowing the elongate members to fold flat to the rear face of the frame.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: October 29, 2013
    Assignee: Sony Corporation
    Inventor: Mirko Goetzen
  • Patent number: 8571217
    Abstract: A display system includes display terminals (1-1-1-4) that display pictures, a display control apparatus (3) that controls the display of pictures on the display terminals (1-1-1-4), and optical shutters (2-1-2-4) that are provided corresponding to each of the display terminals (1-1-1-4) and that enter a state of transmitting incident light in intervals in which private pictures are displayed on corresponding terminals and enter a state of blocking incident light in other intervals. The display control apparatus (3) controls the display terminals (1-1-1-4) such that private pictures are not simultaneously displayed on display terminals (1-1-1-4).
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: October 29, 2013
    Assignee: NEC Corporation
    Inventors: Junichirou Ishii, Masao Imai
  • Patent number: 8569958
    Abstract: To provide a light emitting device without nonuniformity of luminance, a correcting circuit for correcting a video signal supplied to each pixel to a light emitting device. The correcting circuit is stored with data of a dispersion of a characteristic of a driving TFT among pixels and data of a change over time of luminance of a light emitting element. Further, by correcting a video signal inputted to the light emitting device in conformity with a characteristic of the driving TFT of each pixel and a degree of a deterioration of the light emitting element based on the over-described two data, nonuniformity of luminance caused by a deterioration of an electroluminescent layer and nonuniformity of luminance caused by dispersion of a characteristic of the driving TFT are restrained.
    Type: Grant
    Filed: August 9, 2012
    Date of Patent: October 29, 2013
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Hajime Kimura, Mai Akiba, Aya Anzai, Yu Yamazaki
  • Publication number: 20130278574
    Abstract: An electro-optical device includes first and second output circuits and first and second data lines. A first pixel column is arranged alongside the first data line and the second data line and the first pixel column includes a first pixel and a second pixel. The first output circuit supplies a first data signal that is supplied to the first pixel through the first data line during a first period. The second output circuit supplies a second data signal that is supplied to the second pixel through the second data line during the first period.
    Type: Application
    Filed: June 18, 2013
    Publication date: October 24, 2013
    Inventor: Akihiko Ito
  • Patent number: 8564515
    Abstract: A gate driver circuit includes a driving section and a wiring section. The wiring section receives a plurality of signals from an external device. The driving section includes a plurality of stages providing a plurality of gate lines with a gate signal. The wiring section includes first and second signal wirings. The first signal wiring is disposed adjacent to a first side of the driving section, where the first side receives the signals from the wiring section. The second signal wiring is disposed adjacent to a portion that is disposed at an outer side of the driving section and the first signal wiring. Therefore, a signal applied to the first signal wiring is prevented from being delayed by the second signal wiring. Furthermore, a distortion of signal applied to the gate driver and a maloperation of the gate driver are prevented.
    Type: Grant
    Filed: October 15, 2009
    Date of Patent: October 22, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yun-Hee Kwak, Jong-Woong Chang, Seong-Young Lee
  • Patent number: 8564466
    Abstract: To increase the number of analog inputs at low cost, an analog input system includes: one or more analog slave units each connected to a bus to which a CPU unit is connected, and each including an A/D-conversion device converting an analog value outputted by an external device into a first digital value, a buffer memory buffering a second digital value to be transferred to the CPU unit, and a nonvolatile storage device containing specific information of its own unit; and an analog master unit connected to the bus and including an operation section performing operation processing based on the specific information stored in the storage device with the first digital value being used as an input, to calculate the second digital value, the master unit performing on each of the slave input units the operation processing and processing of transferring the calculated second digital value to the buffer memory.
    Type: Grant
    Filed: August 1, 2011
    Date of Patent: October 22, 2013
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masaru Hoshikawa, Shigeaki Takase
  • Patent number: 8564508
    Abstract: A display device including pixel circuits arranged in a form of a matrix, with the pixel circuits respectively including an electro-optical element, a drive transistor, a sampling transistor, and a capacitive element. The sampling transistor samples a signal from the signal line in the capacitive element. The drive transistor and the electro-optical element are arranged in series to form a current path between a power supply line and a ground line. The drive transistor is configured to control a driving current through the current path according to a signal potential stored in the capacitive element. Compensation for driving current dependence on a characteristic of the drive transistor is provided, with such compensation being based upon a current through the current path occurring before a light emission period.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: October 22, 2013
    Assignee: Sony Corporation
    Inventors: Katsuhide Uchino, Junichi Yamashita
  • Patent number: 8552939
    Abstract: A pixel circuit, disposed at a part where a scanning line and a signal line intersect each other, includes at least an electrooptic element, a drive transistor, a sampling transistor, and a retaining capacitance. The drive transistor has a gate connected to an input node, a source connected to an output node, and a drain connected to a predetermined power supply potential and supplies a driving current to the electrooptic element according to a signal potential retained in the retaining capacitance. The electrooptic element has one terminal connected to the output node and another terminal connected to a predetermined potential. The sampling transistor is connected between the input node and the signal line and operates when selected by the scanning line, samples an input signal from the signal line, and retains the input signal in the retaining capacitance. The retaining capacitance is connected to the input node.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: October 8, 2013
    Assignee: Sony Corporation
    Inventors: Katsuhide Uchino, Junichi Yamashita
  • Publication number: 20130257843
    Abstract: A TFT for controlling the amount of current flowing into a power supply line when an EL element does not emit light (electric discharge TFT) is provided in each pixel. When an EL driving TFT is turned ON to make an EL element emit light, the electric discharge TFT is turned OFF. On the other hand, the electric discharge TFT is turned ON when the EL driving TFT is turned OFF and no EL element emit light. Therefore variation of the difference in electric potential over the length of a power supply line depending on an image to be displayed is contained. Thus reduced is the difference in amount of current flowing into EL elements in adjacent pixels while the EL elements emit light, thereby avoiding crosstalk.
    Type: Application
    Filed: December 26, 2012
    Publication date: October 3, 2013
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Hajime Kimura
  • Publication number: 20130257918
    Abstract: An image display apparatus according this invention includes: a light-emitting unit configured to emit light; a display panel configured to display an image by transmitting the light from the light-emitting unit at a transmittance based on an input image signal; and a control unit configured to set a plurality of lighting periods respectively having different lengths on a frame-by-frame basis and control lighting and extinction of the light-emitting unit in such a manner that the light-emitting unit is lit during the lighting periods and extinguished during a period other than the lighting periods, wherein the control unit makes the number of lighting periods within one frame larger when a brightness of the image is bright than when the brightness of the image is dark.
    Type: Application
    Filed: March 11, 2013
    Publication date: October 3, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Mitsuru Tada
  • Publication number: 20130257699
    Abstract: Disclosed is a driver circuit including a latch circuit, a shift register circuit, and a switching circuit, where the latch circuit is provided over the shift register circuit and the switching circuit. The shift register circuit and the switching circuit may have a silicon-based semiconductor, while the latch circuit may have an oxide semiconductor. The latch circuit includes a first transistor and a second transistor connected in series. The latch circuit may further include a first capacitor and a second capacitor which are electrically connected to the first transistor and the second transistor. A display device using the driver circuit as well as a method for preparing the driver circuit is also disclosed.
    Type: Application
    Filed: March 14, 2013
    Publication date: October 3, 2013
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Shunpei YAMAZAKI, Hideto Ohnuma, Kei Takahashi
  • Publication number: 20130257922
    Abstract: A light source module having a plurality of light source blocks corresponding to a plurality of display regions, a method for driving the light source module, and a display device having the light source module. The output brightness of each of the light source blocks is individually dimmed according to a dimming control signal. A dimming control unit determines the average gray level and inherent brightness of each of the respective display regions, calculates a threshold gray level of each display region by using its inherent brightness, outputs a fixed brightness as a dimming control signal when the average gray level of the display region is greater than the threshold gray level, and outputs a variable brightness based upon the inherent brightness value, as the dimming control signal when the average gray level of the display region is less than the threshold gray level.
    Type: Application
    Filed: May 2, 2013
    Publication date: October 3, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventor: Mun-Soo Park
  • Patent number: 8547406
    Abstract: Display element with at least one color-generating cell of the first type which has an emissive light source, and with at least one color-generating cell of the second type which has a reflective and/or transmissive and/or transflective light source, whereby each cell of the second type can be driven so that it makes visible one of the chromatic colors red, green, blue, magenta, cyan and yellow and the achromatic colors white and black, to compensate at least partly for the absence of the color impression created by at least one color-generating cell of the first type on account of the ambient light of the display element.
    Type: Grant
    Filed: August 18, 2010
    Date of Patent: October 1, 2013
    Assignee: Advanced Display Technology AG
    Inventors: Andriy Bitman, Dieter Jerosch, Frank Bartels, Karlheinz Blankenbach, Juergen Rawert
  • Patent number: 8547391
    Abstract: A signal adapting chromacity system to control that may include a signal conversion engine to receive a source signal designating a color of light defined by a two spatial plus luminance dimensional color space, such as the xxY color space. The signal conversion engine may convert the source signal to a three dimensional color space defined within a subset gamut of a full color gamut, such as an RGW, RBW, or GBW color space. The subset gamut may include a first color light, a second color light and a high efficacy light. The signal conversion engine may perform a conversion operation to convert the source signal to an output signal, using the output signal to drive light emitting diodes (LEDs). The conversion operation may be a matrix, angular or linear conversion operation.
    Type: Grant
    Filed: May 15, 2011
    Date of Patent: October 1, 2013
    Assignee: Lighting Science Group Corporation
    Inventors: Fredric S. Maxik, Robert R. Soler, David E. Bartine, Ran Zhou, Valerie A. Bastien, Matthew Regan, Eliza Katar Grove, Eric Bretschneider
  • Patent number: 8547302
    Abstract: An organic light emitting display apparatus minimizes brightness reduction and power consumption increase, and can remove motion blurring. The organic light emitting display apparatus includes a plurality of pixels, each including an organic light emitting device and a pixel circuit, a data driving unit to apply a data signal to data lines connected to the pixels, a scan driving unit to apply a selection signal to selection scan lines connected to the pixels, an emission signal generating unit to generate a first emission signal, an emission duty controlling unit to calculate basic information to reduce motion blurring and to generate an emission duty control signal based on the basic information, a logic gate to output a second emission signal by receiving the first emission signal and the emission duty control signal, and an emission driving unit to apply the second emission signal to emission scan lines connected to the pixels.
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: October 1, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventor: Hyeong-Gwon Kim
  • Patent number: 8542161
    Abstract: A display device includes a substrate, gate lines, data lines, gate tracking lines, and dummy gate tracking lines. The gate lines and the data lines are arranged perpendicularly. Each gate tracking line is disposed between one parts of two adjacent data lines, and substantially parallel to the data lines. Each dummy gate tracking line is electrically disconnected to the gate lines, disposed between other parts of two adjacent data lines, and substantially parallel to the data lines.
    Type: Grant
    Filed: July 6, 2009
    Date of Patent: September 24, 2013
    Assignee: AU Optronics Corp.
    Inventors: Yi-Chen Chiang, Yu-Cheng Chen
  • Patent number: 8542167
    Abstract: A display apparatus has several light emitting elements and several lenses. The light emitting elements generate light of a first and second part of a frame respectively during a first and second period. The lenses pass through by the light from the light emitting elements, and operate to form images of the first and second part of the frame at a first and second location during the first and second period, respectively.
    Type: Grant
    Filed: August 1, 2007
    Date of Patent: September 24, 2013
    Assignee: Himax Technologies Limited
    Inventors: Yu-Wen Chiou, Biing-Seng Wu, Lin-Kai Bu
  • Patent number: 8542172
    Abstract: A method of operating an electro-optic display apparatus, wherein the display apparatus includes a display device having image regions and a display driving system having a data input for selecting image regions. The data input is connected to the input of a distributor for providing signals for driving the image regions. Each image region has an active display state in which the image region is driven with an active voltage signal. The active voltage signal includes a first signal level which sets an image region to the active display state and a second signal level different from said first signal level and which is applied for a shorter duration than said first signal level.
    Type: Grant
    Filed: November 15, 2007
    Date of Patent: September 24, 2013
    Assignee: Liquavista B.V.
    Inventors: Robert Gerardus Hendrik Boom, Roy Van Dijk, Henricus Petronella Maria Derckx
  • Patent number: 8542169
    Abstract: A DC/DC converter of a liquid crystal display includes a charge pump having a thin film transistor, a capacitor and a diode. The thin film transistor is formed on an insulating substrate. A first main electrode of the thin film transistor is connected to an output terminal and a control electrode of the thin film transistor receives a control signal. The thin film transistor includes a non-monocrystal semiconductor. The capacitor has a first electrode connected to a second main electrode of the thin film transistor and a second electrode receiving a variable voltage. The diode is electrically connected between the second main electrode of the thin film transistor, the first electrode of the capacitor, and a power terminal in series. The diode includes a mono-crystal semiconductor.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: September 24, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventor: Michiru Senda
  • Patent number: 8542244
    Abstract: System and method for generating multiprimary signals with optimization for bit depth for use in display devices. A preferred embodiment comprises converting an input color signal into an output color signal, wherein the number of colors in the output color signal is less than a number of colors used in a display system, when a weighting of the input color signal is less than a specified threshold, and converting the input color signal into an output color signal, wherein the number of colors in the output color signal is equal to the number of colors used in the display system, when the weighting of the input color signal is greater than the specified threshold. The use of fewer colors eliminates low bit depth colors, allowing increased dither quality in dimmer images.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: September 24, 2013
    Assignee: Texas Instruments Incorporated
    Inventors: Jeffrey Kempf, Rajeev Ramanath
  • Publication number: 20130241812
    Abstract: An output control circuit is configured to have a first circuit which includes a NOT circuit, a NAND circuit and a transmission gate as a first sub circuit, and a second circuit which includes a NAND circuit as a second sub circuit. The NAND circuit controls a transmission to the NAND circuit of the enable signal by the transmission gate based on signal which has been logic reversed by the NOT circuit and the NAND circuit.
    Type: Application
    Filed: March 7, 2013
    Publication date: September 19, 2013
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Shinsuke Fujikawa
  • Patent number: 8537145
    Abstract: According to the invention, the system automatically locates effective visibility zones from which an element to be viewed is visible. For this purpose, for this purpose, the inventive system makes use of the location of potential visibility zones (obtained from data such as sitting, morphology and orientation of the element to be viewed, potential visibility distance assigned to said element, etc.) and the morphology of the region in which the effective visibility zones are to be located. Said system avails of means of appraising the degree of visibility of different visibility zones according to the level of compliance achieved in relation to the criteria for locating visibility zones.
    Type: Grant
    Filed: February 2, 2004
    Date of Patent: September 17, 2013
    Assignee: Cuende Infometrics, S.A.
    Inventor: Daniel Cuende Alonso
  • Patent number: 8537089
    Abstract: A display device includes a first substrate, a first electrode comprising first electrode extensions formed on the first substrate, a second electrode comprising second electrode extensions formed on the first substrate and arranged alternately with the first electrode extensions, a second substrate facing the first substrate, liquid crystal molecules interposed between the first substrate and the second substrate, wherein electrode gaps formed between the first electrode extensions and the second electrode extensions comprise first electrode gaps and second electrode gaps, and the first electrode gaps are different from the second electrode gaps, and wherein the liquid crystal molecules are aligned vertically to the first and the second substrate, when the electric field is not formed between the first and the second substrate.
    Type: Grant
    Filed: January 8, 2008
    Date of Patent: September 17, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yong-hwan Shin, Sung-woon Kim, Hwa-sung Woo, Hee-seop Kim
  • Patent number: 8537082
    Abstract: A display is provided. The display includes at least one display cell having a display circuit; at least one light receiving cell including a light receiving element; a light emitting section operative to radiate light to the side of a display surface; and a polarizing plate disposed on the front side in the display relative to a region in which the light emitting section is disposed and regions in which the display cell and the light receiving cell are formed, wherein a phase difference plate is disposed at a position which is on the front side relative to the light receiving cell and in either of an emitting optical path of the light emitting section and a reflecting optical path toward the light receiving cell.
    Type: Grant
    Filed: December 9, 2008
    Date of Patent: September 17, 2013
    Assignee: Japan Display West Inc.
    Inventors: Daisuke Takama, Hiroyuki Kawazoe
  • Publication number: 20130234918
    Abstract: A display apparatus includes: a plurality of pixel circuits 6; a reference voltage source for supplying a reference voltage to a reference voltage line 4; a first switch for connecting the reference voltage source to the reference voltage line 4; a data line 5 for supplying a data voltage to the pixel circuit, wherein the pixel circuit 6 includes a light emitting element, a driving transistor M1 having a source connected to an anode of the light emitting element, a holding capacitor CS having one end connected to a gate of the driving transistor M1 and having the other end connected to the source of the driving transistor M1, a second switch for connecting the gate of the driving transistor M1 to the data line 5, and a third switch for connecting the source of the driving transistor M1 to the reference voltage line 4.
    Type: Application
    Filed: February 14, 2013
    Publication date: September 12, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Takanori Yamashita, Masami Iseki, Tatsuhito Goden
  • Publication number: 20130235091
    Abstract: A pixel circuit is provided. The pixel circuit is electrically coupled to a data line, a first scan line, and a second scan line. The pixel circuit includes a first pixel unit, a second pixel unit, and a third pixel unit. The first pixel unit is electrically coupled to the data line and the second scan line, to determine a first displayed gray scale of the first pixel unit. The second pixel unit is electrically coupled to the data line and the first scan line, to determine a second displayed gray scale of the second pixel unit. The third pixel unit is electrically coupled to the data line, the first scan line, and the second scan line, to determine a third displayed gray scale of the third pixel unit.
    Type: Application
    Filed: September 13, 2012
    Publication date: September 12, 2013
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Meng-Ju Tsai, Yu-Sheng Huang, Chia-Lun Chiang, Yan-Ciao Chen
  • Patent number: 8525772
    Abstract: The display area selection circuit selects a desired display area. The signal generating circuit sets a period of each shift signal generated while the selection position of the pixel diode is between the shift start position and the display start position shorter than a period of each shift signal generated while the selection position of the pixel diode is between the display start position and the display end position.
    Type: Grant
    Filed: January 18, 2008
    Date of Patent: September 3, 2013
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Hiroshi Tanaka, Takashi Inoue, Munenori Takumi, Norihiro Fukuchi, Naoya Matsumoto
  • Patent number: 8525424
    Abstract: This disclosure provides a circuit and a method for driving an LED display. The driving circuit comprises a selection circuit for selecting a first light emitter from the plurality of light emitters, a pre-charging circuit for charging an equivalent capacitor of the display panel with respect to the selected first light emitter, and a power circuit for supplying power to the first light emitter after the first light emitter is selected, wherein the power circuit is configured to supply a driving current to the first light emitter in one or more stages. The driving circuit and method of this disclosure can be used to significantly increase the refresh rate and resolution of the LED display.
    Type: Grant
    Filed: December 5, 2011
    Date of Patent: September 3, 2013
    Assignee: SCT Technology, Ltd.
    Inventors: Eric Li, Chun Lu
  • Publication number: 20130222353
    Abstract: This document describes techniques and apparatuses for implementing a prism illumination-optic for a vision-based interactive-display device. A vision-based interactive-display device includes a display to form images for viewing on a display surface of the device. The device further includes an illumination-optic having an upper face positioned towards the display surface and a lower face positioned towards the display. In accordance with various embodiments, the illumination-optic is configured with prisms on the lower face that reflect light out of the upper face of the illumination-optic to illuminate the display surface.
    Type: Application
    Filed: February 29, 2012
    Publication date: August 29, 2013
    Applicant: Microsoft Corporation
    Inventor: Timothy Andrew Large
  • Patent number: 8519923
    Abstract: The invention relates to methods and apparatus for forming images on a display utilizing a control matrix to control the movement of MEMs-based light modulators.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: August 27, 2013
    Assignee: Pixtronix, Inc.
    Inventors: Nesbitt W. Hagood, IV, Abraham McAllister, Stephen R. Lewis, Roger W. Barton
  • Patent number: 8519910
    Abstract: An image processing method comprises: (A) separating R and B data and G data from input data; (B) loading data corresponding to respective odd rows of gamma-converted R and B data, and storing data corresponding to respective even rows of the R and B data adjacent to the loaded odd rows; (C) loading two R data of the even row, along with two R data of the odd row corresponding to a first display position, so as to form a 2×2 R pixel area, and loading two B data of the even row, along with two B data of the odd row corresponding to a second display position, so as to form a 2×2 B pixel area; (D) computing the sharpness of the corresponding display data by comparing the data in each of the R and B pixel areas column by column and row by row; (E) computing the luminance of the display data by taking the average value of the data corresponding to the odd row of each of the R and B pixel areas; (F) determining the gray scale value of output R data by adding the sharpness to the luminance of the R data, and determi
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: August 27, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Byunghwee Park, Namyang Lee, Thomas Lloyd Credelle
  • Patent number: 8519945
    Abstract: The invention relates to methods and apparatus for forming images on a display utilizing a control matrix to control the movement of MEMs-based light modulators.
    Type: Grant
    Filed: October 29, 2007
    Date of Patent: August 27, 2013
    Assignee: Pixtronix, Inc.
    Inventors: Nesbitt W. Hagood, Stephen R. Lewis, Abraham McAllister, Roger W. Barton
  • Patent number: 8519938
    Abstract: A method of adjusting intensity of illumination of a device based on change in ambient light, the method comprising: measuring a first level of ambient light for a device, in response to detecting a change in ambient light; adjusting intensity of illumination for the device to a first illumination level, if an association between the first illumination level and the first level of ambient light is recorded in a data structure; monitoring user interaction with the device within a threshold period after detecting the change in ambient light to determine whether the user adjusts the intensity of illumination for the device to a second illumination level; and recording an association between the second illumination level and the first level of ambient light in the data structure.
    Type: Grant
    Filed: December 3, 2007
    Date of Patent: August 27, 2013
    Assignee: Intel Corporation
    Inventors: Thomas J. Hernandez, Karthik Rishi
  • Patent number: 8513898
    Abstract: A light emitting device includes: a plurality of light emitting elements configured to emit light when a direct current is supplied thereto; and a direct current power supply circuit configured to supply an electric current of a given level or more to the light emitting elements. The light emitting device further includes: a light emitting element voltage detection circuit configured to detect a voltage applied to the light emitting elements; and a forward/reverse inverting circuit configured, when the light emitting element voltage detection circuit detects an abnormality in a light emitting element, to apply a reverse voltage to the light emitting element in which the abnormality is detected.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: August 20, 2013
    Assignee: Panasonic Corporation
    Inventors: Masanao Okawa, Hirofumi Takaki, Shin Ukegawa, Minoru Maehara, Hirofumi Konishi
  • Patent number: 8514479
    Abstract: An electro-wetting display includes a first substrate, a second substrate which faces the first substrate, and a fluid layer between the first and second substrates. The first substrate includes a plurality of gate lines, a plurality of data lines, and a plurality of pixels connected to the gate lines and the data lines. A fluid layer includes a first fluid layer having a color and a second fluid layer which is transparent. Each pixel includes a switching device, a pixel electrode in connection with the switching device, and a spacing electrode. The switching device is connected to an i-th gate line of the gate lines and a j-th data line of the data lines. The spacing electrode is adjacent to a side of the pixel electrode and in connection with a (i?1)th gate line of the gate lines.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: August 20, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Joo-Han Bae, Tae Hyung Hwang, Kyungtae Chae, Sang-Myoung Lee, Seok-Joon Hong
  • Patent number: 8514157
    Abstract: A differential amplifier has first and second input terminals (T1, T2), an output terminal, a differential stage connected to the first and second input terminals, and an amplification stage having an input terminal thereof connected to an output terminal of the differential stage and an output terminal thereof connected to the output terminal. The differential stage includes a first differential pair with one of an input pair thereof connected to the first input terminal (T1) and the other connected to the output terminal, a second differential pair with one of an input pair thereof connected to the first input terminal (T1) and the other connected to the second input terminal (T2), a first current source for supplying current to the first differential pair, a second current source for supplying current to the second differential pair, and a load circuit connected to the output pairs of the first and second differential pairs.
    Type: Grant
    Filed: October 27, 2004
    Date of Patent: August 20, 2013
    Assignees: NEC Corporation, NEC Electronics Corporation
    Inventor: Hiroshi Tsuchi
  • Publication number: 20130207884
    Abstract: A display device 10 according to the present invention includes a plurality of pixels 40 each including a plurality of sub pixels 42, a plurality of auxiliary capacitance lines 36 forming an auxiliary capacitance 56 with the sub pixels 42, and an auxiliary capacitance driver 34 configured to supply an auxiliary capacitance drive signal to the auxiliary capacitance lines 36 and to apply a voltage to the auxiliary capacitance. In the display device 10, the auxiliary capacitance driver 34 includes a plurality of connection terminals 64 each connected to each of the auxiliary capacitance lines 36.
    Type: Application
    Filed: October 26, 2011
    Publication date: August 15, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Masahiko Nakamizo, Fumikazu Shimoshikiryoh, Takamitsu Suzuki, Akifumi Hashimoto
  • Patent number: 8508447
    Abstract: A pixel includes a primary element and a secondary element. At least a portion of the primary element is deformable between two positions. In one position, the light source is reflected such that the observer observes a dark pixel. In the other position, the light is reflected such that the observer observes a bright pixel. Gray levels of light are viewable by varying between the two positions.
    Type: Grant
    Filed: November 19, 2007
    Date of Patent: August 13, 2013
    Assignee: Microsoft Corporation
    Inventors: Anna Pyayt, Gary K. Starkweather, Michael J. Sinclair
  • Patent number: 8508516
    Abstract: A display device includes a plurality of pixels arranged in a matrix with columns and rows. A source driver provides either analogue or digital image data for the pixels. Each pixel includes a plurality of sub-pixels. Each sub-pixel includes a display components, a memory unit for memorizing gradation display data included in the digital image data provided by the source driver for the display component, and a data switching unit for switching data providing for the display component to either the gradation display data memorized in the memory unit or the analogue image data provided by the source driver.
    Type: Grant
    Filed: October 2, 2009
    Date of Patent: August 13, 2013
    Assignee: Chimei Innolux Corporation
    Inventors: Keitaro Yamashita, Yoshikazu Matsui
  • Patent number: 8508835
    Abstract: A display structure is described comprising a displaying medium, a backplane provided with an active matrix and a pixel pad comprising a plurality of pixels having an inter-pixel spacing, said pixel pad superposing the active matrix, wherein the inter-pixel spacing is in the range of 2.5-40 micrometers, preferably in the range of 8-20 micrometers.
    Type: Grant
    Filed: November 2, 2010
    Date of Patent: August 13, 2013
    Assignee: Creator Technology B.V.
    Inventors: Nicolaas Aldegonda Jan Maria Van Aerle, Kevin Michael O'Neill, Petrus Johannes Gerardus Van Lieshout
  • Patent number: 8508436
    Abstract: A display or light-modulating device incorporates one or more measures of liquid that obstruct or filter light that passes onto or through the liquid; a space distribution of different light-modulating filters, optical instrument or materials or of materials that change the frequency or color of light passing onto or through them, to emit a different frequency or color of light; and means to apply electrowetting effect to controllably modulate the location or shape of one or more measures of a polar or conductive liquid, so that at least some portion of one or more light-obstructing or light-filtering measures of liquids is caused to be located between one or more light sources and the space distribution of light-modulating filters, optical instruments or light-modulating materials, or said space distribution of materials that change the frequency or color of light passing onto or through them, to emit a different frequency or color of light, thereby controllably modulating properties of light emitted from sa
    Type: Grant
    Filed: January 8, 2010
    Date of Patent: August 13, 2013
    Assignee: Intellectual Properties | Kft
    Inventor: Richard V. Jessop
  • Patent number: 8506086
    Abstract: The invention relates to a device for representing surface colors for simulating print results through a screen, comprising at least one light source and a projection surface. According to the invention the base colors are generated from white light through filters from surface colors and the mixed colors are generated through subtractive color mixing, preferably through reflexive color filters. Through the method for representing surface colors for simulating print results the capability is created to represent surface colors at different locations and at different times identically.
    Type: Grant
    Filed: March 28, 2006
    Date of Patent: August 13, 2013
    Inventor: Marco Diegel
  • Patent number: 8508553
    Abstract: A system may allow an initial viewing adjustment curve set at a factory to be adjusted by a user, and the adjustment may pull the viewing adjustment curve in a particular direction, but may not result in a multistep, jerky viewing adjustment curve. The curve of the viewing adjustment curve may remain a curve, but, through the use of regions and smoothing, the viewing adjustment curve may retain its curve design.
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: August 13, 2013
    Assignee: Microsoft Corporation
    Inventors: Steven P. Dodge, Zheng Wang, Xu Chen, Gavin Gear
  • Publication number: 20130201175
    Abstract: A display driving apparatus and driving method thereof are disclosed. The display driving apparatus includes a display panel and a display driver. The display panel has a plurality of pixels, and the pixels are arranged in an array. The pixels are divided into a plurality of first display regions and a plurality of second display regions, and each of the first display regions and each of the second display regions are arranged in the display panel alternatively. The display driver provides a plurality of driving signals for driving the first and second display regions. The driving polarities of the neighboring first display regions are different, and the driving polarities of the neighboring second display regions are different.
    Type: Application
    Filed: January 21, 2013
    Publication date: August 8, 2013
    Applicant: NOVATEK MICROELECTRONICS CORP.
    Inventor: NOVATEK MICROELECTRONICS CORP.
  • Patent number: 8502838
    Abstract: A spoke synchronization technique allowing for lamp-pulsing synchronizes a spoke based on sub-arrays of a spatial light modulator. The lamp pulsing occurs during the spoke synchronization; and the lamp pulse for pulsing the lamp spans substantially across the entire spoke synchronization time period.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: August 6, 2013
    Assignee: Texas Instruments Incorporated
    Inventors: Gregory James Hewlett, Philip Scott King
  • Patent number: 8502751
    Abstract: A pixel circuit for use in a display comprising a plurality of pixels is provided. The load-balanced current mirror pixel circuit can compensate for device degradation and/or mismatch, and changing environmental factors like temperature and mechanical strain. The pixel circuit comprises a pixel drive circuit comprising, switching circuitry, a current mirror having a reference transistor and a drive transistor, the reference transistor and the drive transistor each having a first and second node and a gate, the gate of the reference transistor being connected to the gate of the drive transistor; and a capacitor connected between the gate of the reference transistor and a ground potential, and a load connected between the current mirror and a ground potential, the load having a first load element and a second load element, the first load element being connected to the first node of the reference transistor and the second load element being connected to the first node of the drive transistor.
    Type: Grant
    Filed: September 23, 2004
    Date of Patent: August 6, 2013
    Assignee: Ignis Innovation Inc.
    Inventors: Arokia Nathan, Kapil V. Sakariya, Peyman Servati, Shahin Jafarabadiashtiani
  • Patent number: 8502724
    Abstract: To provide a semiconductor device including an A/D converter circuit that is capable of performing A/D conversion with high accuracy and high resolution and that can be reduced in size. One loop resistance wiring is shared by a plurality of power supply switches and a plurality of output circuits, and a reference voltage having a triangular (step-like) wave generated using the resistance wiring and the plurality of power supply switches is utilized. Thus, high-accuracy digital signals can be obtained using such an A/D converter circuit that can be reduced in size as an output circuit, without using a complicated circuit structure. Further, the number of constituent elements of the A/D converter circuit is small, whereby in the case of providing A/D converter circuits in parallel, variation between the A/D converter circuits can be made small.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: August 6, 2013
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Yoshiyuki Kurokawa
  • Publication number: 20130194167
    Abstract: A display apparatus, a display panel, and a display method are provided. The display apparatus includes: a first panel which displays an object by using a self-emission device formed of a transparent material; a second panel which is disposed on a back surface of the first panel; and a controller which switches a state of the second panel to one of a transparent state and an opaque state.
    Type: Application
    Filed: January 24, 2013
    Publication date: August 1, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: SAMSUNG ELECTRONICS CO., LTD.
  • Patent number: 8497821
    Abstract: A display device, including a substrate; an array of pixels arranged in rows and columns forming a light-emitting area over the substrate, each pixel including a first electrode, one or more layers of light-emitting material located over the first electrode, and a second electrode located over the one or more layers of light-emitting material; a first serial buss having a plurality of electrical conductors, each electrical conductor connecting one chiplet in a first set of chiplets to only one other chiplet in the first set in a serial connection, the chiplets being distributed over the substrate in the light-emitting area, each chiplet including one or more store-and-forward circuits for storing and transferring data connected to its corresponding electrical conductor; and a driver circuit in each chiplet for driving at least one pixel in response to data stored in the store-and-forward circuit.
    Type: Grant
    Filed: February 16, 2009
    Date of Patent: July 30, 2013
    Assignee: Global OLED Technology LLC
    Inventor: Ronald S. Cok