Patents Examined by Matthew Fry
  • Patent number: 8212752
    Abstract: A method of economically manufacturing display devices having a matrix of drivable pixels arranged in rows and columns arranged to be driven by IC drivers, including the steps of including a plurality of sensor signal lines in the display device that are selectively connectable to certain of the pixel rows, a plurality of sensor signal lines selectively connectable to certain of the pixel columns, transmitting test signals to test predetermined ones of the rows and columns of pixels, and connecting pixel driving circuits to those display devices exhibiting uniform pixel brightness in response to the test signals.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: July 3, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Myung-Woo Lee, Joo-Hyung Lee, Sang-Jin Pak, Kee-Han Uh
  • Patent number: 8179366
    Abstract: A system and method for controlling operation of a computer based on movements and/or position of a movable object. The system includes a sensing apparatus configured to obtain positional data based on movements of a sensed object. Engine software may process the positional data and generate control commands to produce a virtual position in an application running on the computer. A visual comparator is operatively coupled with the engine software and configured to display an actual indicator and a virtual indicator to provide a visual comparison between the virtual position and the actual position of the sensed object.
    Type: Grant
    Filed: December 6, 2005
    Date of Patent: May 15, 2012
    Assignee: NaturalPoint, Inc.
    Inventors: Jim Richardson, Birch Zimmer, Eric Wesley Davison
  • Patent number: 8174464
    Abstract: A display device, adapted to display a two-dimensional image or a three-dimensional image, includes an image panel for displaying an image and a barrier panel located in front of the image panel. The barrier panel includes a first substrate including In-Plane-Switching type electrodes arranged on a surface of the substrate, a second substrate having a transparent electrode on the inner side surface, and a liquid crystal layer located between the first and second substrates. The barrier panel displays the image as a two-dimensional image or a three-dimensional image depending on electric fields established between first and second substrates of the barrier panel and between the In-Plane-Switching type electrodes formed on the first substrate. The two-dimensional image may be displayed with wide viewing angle and narrow viewing angle options.
    Type: Grant
    Filed: October 10, 2006
    Date of Patent: May 8, 2012
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Kyung Ho Choi, Brent Jang, Hui Nam
  • Patent number: 8144089
    Abstract: A liquid crystal display device is divided into a display region and a non-display region. A first thin film transistor is formed in each pixel region of the display region, and a second thin film transistor is formed in the non-display region. The first thin film transistor is a switch for controlling the supply of a data voltage to the pixel region, and the second thin film transistor is a switch for controlling the supply of a common voltage to the pixel region. The first thin film transistor has the same parasitic capacitance as that of the second thin film transistor. Accordingly, the flicker or image-sticking can be prevented. Also, the aperture ratio of each pixel region can be improved.
    Type: Grant
    Filed: June 7, 2006
    Date of Patent: March 27, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Hyung Beom Shin, Hong Sik Kim
  • Patent number: 8115717
    Abstract: A method for line-by-line addressing of RMS responding display matrix with wavelets, said method comprises steps of: selecting the wavelets such that energy of them is proportional to an integer power of two to form a wavelet matrix; obtaining select waveform profile by summing elements of column in the wavelet matrix; obtaining column waveforms by dot product of data with column of the wavelet matrix; and applying the select waveform and the corresponding column waveforms by selecting one row of the display matrix at a time.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: February 14, 2012
    Assignee: Raman Research Institute
    Inventor: Temkar Narasingarao Ruckmongathan
  • Patent number: 8111208
    Abstract: Display apparatus and methods of making them are disclosed. The display apparatus includes frame members assembled to form a frame for the display apparatus and display modules configured for displaying at least a portion of an adaptable image. Each display module is coupled to the frame members to form a matrix organization of display modules for the display apparatus. The display module includes a removable panel and apertures formed therethrough. The apertures are arranged as pixel rows including pixel arrangements distributed along each pixel row. The display module also includes coupling devices attached to the removable panel, which are configured for detachably coupling the removable panel to the frame members, wherein the coupling devices may be operated to attach or remove the removable panel. Furthermore, the coupling devices are configured such that they can be operated from a front side or from a back side of the removable panel.
    Type: Grant
    Filed: June 6, 2006
    Date of Patent: February 7, 2012
    Assignee: Young Electric Sign Company
    Inventor: Brent W. Brown
  • Patent number: 8085218
    Abstract: Mechanisms for providing a floating display without moving electronics is provided. The mechanisms include a stationary array of light emitting elements and a moving reflective element. As the reflective element rotates, oscillates, or otherwise moves in a path relative to the array of light emitting elements, a controller controls the illumination, i.e. the pulsing on and off, of the light emitting elements based on a location of the reflective element so as to achieve a desired image, alphanumeric message, graphical display, animated display, or the like. The reflective element may be a reflective sphere having a reflective exterior surface. In this way, the electronics used to generate the floating display are kept stationary while the reflective element is moved along a path of motion to generate the floating image. This reduces the complexity and cost of the electronics needed to generate a floating image.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: December 27, 2011
    Assignee: International Business Machines Corporation
    Inventor: Randall R. Heisch
  • Patent number: 8044884
    Abstract: A plasma display apparatus comprises a driver for supplying a rising signal of finite slope and a scan signal of negative polarity to a scan electrode using one voltage source. The driver also supplies a falling signal to the scan electrode using the same voltage source. This apparatus may be used to perform a panel driving method that includes applying a rising signal, which rises from a first voltage to a second voltage, to the scan electrode during a reset period and applying a scan signal, of a magnitude at least substantially the same as a difference between the first voltage and the second voltage, to the scan electrode during an address period.
    Type: Grant
    Filed: June 6, 2006
    Date of Patent: October 25, 2011
    Assignee: LG Electronics Inc.
    Inventors: Yun Kwon Jung, Hyun Jae Lim, Sung Kwang Cho
  • Patent number: 8022916
    Abstract: A liquid crystal display driving device that reduces horizontal crosstalk and a liquid crystal display employing the driving device are presented. The driving device includes a common voltage generator that generates first and second common voltages, and the common voltage generator includes a first capacitor provided between a first terminal for outputting the first common voltage and a second terminal for outputting the second common voltage. Since the capacitor is provided between two output terminals of the two common voltages, it reduces the distortion components of the common voltages, thereby reducing horizontal crosstalk. The invention reduces the number of parts in the driving device conferring the added benefit of reduced manufacturing cost.
    Type: Grant
    Filed: October 11, 2006
    Date of Patent: September 20, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-Hee Lee, Seoung-Bum Pyoun
  • Patent number: 7982704
    Abstract: A data driving circuit may include a shift register unit which may further include a plurality of first stages connected in series that may receive data signals and may output the data signals, in which each first stage may receive the data signals output from a preceding first stage, a latch unit including a plurality of second stages, in which each second stage may be connected to a different predetermined first stage, in which each second stage receives the data signals output from the predetermined first stage, in which the number of second stages may be substantially half the number of the first stages, and a D/A converter connected to the latch unit which may receive digital data signals and output analog data signals.
    Type: Grant
    Filed: November 6, 2006
    Date of Patent: July 19, 2011
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventor: Dong Yong Shin
  • Patent number: 7928950
    Abstract: The present invention provides a data latch circuit which can operate stably with a low-amplitude signal, which consumes less electric power, and which is resistant against the variation in TFTs. When an analog switch is turned on, a data signal is inputted to a gate electrode of an n-channel TFT and, at this time, VDD is supplied to an input terminal of an inverter. When the analog switch in turned off, the n-channel TFT is turned on or off depending on a level of the data signal. When the data signal is at an H level, the n-channel TFT is turned on and VSS is supplied to the input terminal of the inverter. When the data signal is at an L level, VDD is supplied to an input terminal of the inverter. Therefore, only VDD and VSS levels are applied to the input terminal of the inverter.
    Type: Grant
    Filed: April 13, 2006
    Date of Patent: April 19, 2011
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Mitsuaki Osame, Tatsuro Ueno
  • Patent number: 7903127
    Abstract: A display device including a display unit including a plurality of data lines for transmitting data currents, a plurality of scan lines for transmitting scan signals, and a plurality of pixel areas defined by the data lines and the scan lines; a data driver for converting a plurality of grayscale data that include first data and second data into at least one of the data currents, and applying the at least one of the data currents to at least one of the data lines; and a scan driver for sequentially applying the scan signals to the plurality of scan lines, and wherein the data driver divides the plurality of grayscale data into at least two grayscale ranges including a first grayscale range, outputs a first current of the first grayscale range including at least one of the plurality of grayscale data by using the first data, and outputs a second current that corresponds to the second data in the first grayscale range.
    Type: Grant
    Filed: September 16, 2005
    Date of Patent: March 8, 2011
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventor: Oh-Kyong Kwon
  • Patent number: 7903056
    Abstract: A voltage-current converting converts a voltage signal into a current signal. In an example operation, a source of a transistor is connected to a first power source, the source is connected to an input terminal via a coupling capacitor, and a gate and a drain of the transistor are connected to a second power source so that current flows between the source and the drain while a constant voltage is applied to the input terminal. To output the current signal, the drain is disconnected from the second power source, the voltage signal is supplied from the input terminal to the holding capacitor via the coupling capacitor, the coupling capacitor is disconnected from the input terminal, the gate is disconnected from the second power source, the drain is connected to the second power source, and the source is connected to an output terminal.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: March 8, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Somei Kawasaki, Takanori Yamashita
  • Patent number: 7772869
    Abstract: A method of economically manufacturing display devices having a matrix of drivable pixels arranged in rows and columns arranged to be driven by IC drivers, including the steps of including a plurality of sensor signal lines in the display device that are selectively connectable to certain of the pixel rows, a plurality of sensor signal lines selectively connectable to certain of the pixel columns, transmitting test signals to test predetermined ones of the rows and columns of pixels, and connecting pixel driving circuits to those display devices exhibiting uniform pixel brightness in response to the test signals.
    Type: Grant
    Filed: October 10, 2006
    Date of Patent: August 10, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Myung-Woo Lee, Joo-Hyung Lee, Sang-Jin Pak, Kee-Han Uh
  • Patent number: 7728828
    Abstract: A unit circuit includes a capacitive element having a first electrode, a second electrode, and a dielectric layer interposed between the first electrode and the second electrode, a transistor having a gate electrode connected to the first electrode, a first terminal supplied with one of a low potential and a high potential, a second terminal connected to a driven element, a first switching element controlling electrical connection between the gate electrode of the transistor and the second terminal, and a second switching element connected to the second electrode. A potential of the first electrode is set to a predetermined potential higher than a first potential, and the potential of the first electrode is set to the first potential in a state that the first electrode is electrically isolated from the predetermined potential by turning off the first switching element.
    Type: Grant
    Filed: April 14, 2006
    Date of Patent: June 1, 2010
    Assignee: Seiko Epson Corporation
    Inventor: Takashi Miyazawa
  • Patent number: 7619598
    Abstract: An OLED (organic light-emitting diode) passive-matrix display includes a display portion and a driver portion. The display portion includes a matrix of OLEDs for displaying information. The driver portion includes a monitor circuit and a voltage adjusting circuit. The voltage adjusting circuit has a power-up portion that generates a supply voltage based on a reference voltage. In response to an indication to switch modes, the voltage adjusting circuit switches to an operational mode wherein the supply voltage is generated based on the maximum voltage drop read across the OLEDs.
    Type: Grant
    Filed: October 10, 2006
    Date of Patent: November 17, 2009
    Assignee: STMicroelectronics S.r.l.
    Inventors: Francesco Pulvirenti, Gregorio Bontempo, Murakata Masaki, Hayafuji Akinori
  • Patent number: 7595778
    Abstract: A display device with a compensation circuit that applies a fixed potential constantly to a gate electrode of a driving transistor for a certain period is provided. Specifically, each difference voltage value between an anode and a cathode of the light emitting element is utilized in the case where the light emitting element emits light and emits no light. In a case where the light emitting element emits light, a potential of the gate electrode of the driving transistor is to be held; and in a case where the light emitting element emits no light, a potential that certainly turns off the gate electrode of the driving transistor is kept on applying to the gate electrode of the driving transistor.
    Type: Grant
    Filed: April 13, 2006
    Date of Patent: September 29, 2009
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Mitsuaki Osame, Taichi Kato