Patents Examined by Jason Mandeville
  • Patent number: 8274451
    Abstract: The present invention relates to an electroluminescent device, particularly to an organic electroluminescent device reliably receiving driving voltage from a voltage source, and a method of driving the same. A driving circuit of the electroluminescent device includes first to third sub-pixels formed on crossing areas of data lines and scan lines, a pre-charge driving circuit which applies pre-charge current to the data lines of the first to third sub-pixels and a data driving circuit which applies data current to the pre-charged data lines. The pre-charge current is applied to the first to third sub-pixels in different time. The organic electroluminescent device of the present invention and the method of driving the same can reliably receive the driving voltage from the voltage source, and prevent quick flames of the device.
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: September 25, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Ji Hun Kim, Hee Young Lee, Jae Do Lee
  • Patent number: 8259085
    Abstract: An information terminal device has a touch panel and a display unit which are integrally configured, and an operation button provided around the display unit, and the information terminal device includes: a touch number counting unit operable to count number of times of touching the operation button; a touch number storing unit operable to store the number of times counted by the touch number counting unit; and a control unit operable to control the information terminal device by switching an operation mode between a normal mode for working the information terminal device according to operations of the touch panel and the operation button and a cleaning mode for cleaning the touch panel, wherein in the cleaning mode, the control unit prohibits an application from being executed according to operations of the touch panel and the operation button, and terminates the cleaning mode when the number of times of touching the operation button counted by the touch number counting unit reaches a predetermined number.
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: September 4, 2012
    Assignee: Panasonic Corporation
    Inventor: Takashi Kobayashi
  • Patent number: 8237747
    Abstract: A method is described which converts a three primary color input signal (Cx, Cy, Cz) into N drive signals (P1, . . . , PN) to drive N>3 primary colors of a multi-primary color display (3). The method determines (1) a valid range (VS) wherein the N drive signals (P1, . . . , PN) have valid values by performing the steps of (i) defining 3 functions representing 3 of the drive signals (P1, P2, P3) as a function of the remaining N?3 drive signal(s) (P4, . . . , PN), and (ii) calculating (1) a common range in a space formed by the N?3 drive signal(s) (P4, . . . , PN) wherein each one of the 3 functions has valid values. The method selects (2) a point from the common range to determine the N drive signals (P1, . . . , PN).
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: August 7, 2012
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Oleg Belik, Claus Nico Cordes, Gerben Johan Hekstra
  • Patent number: 8237689
    Abstract: An image encoding device includes a dynamic range generator for outputting dynamic range data Dd1 of block image data Dc1, an average value generator for outputting average value data De1 of the block image data Dc1, a number-of-pixel reducing unit 20 for decreasing number of pixels of the block image data by reduction-number of pixels to generate reduced-number-of-pixel block image data Dc1?, an encoding parameter generator 18 for generating encoding parameter pa1 specifying a quantization bit rate and the reduction-number of pixels in accordance with the dynamic range data Dd1, a quantization threshold generator 19 for generating a quantization threshold value tb1, and an image data quantizer 21 for generating quantized image data Df1 from the reduced-number-of-pixel block image data Dc1? with use of the quantization threshold value tb1.
    Type: Grant
    Filed: October 18, 2006
    Date of Patent: August 7, 2012
    Assignee: Mitsubishi Electric Corporation
    Inventors: Akihiro Nagase, Jun Someya, Noritaka Okuda
  • Patent number: 8237658
    Abstract: A handheld electronic device includes a reduced QWERTY keyboard and is enabled with disambiguation software. The device provides an improved text case feature. The device provides output in the form of a default output and a number of variants. The output is based largely upon the frequency, i.e., the likelihood that a user intended a particular output, but various features of the device provide additional variants that are not based solely on frequency and rather are provided by various logic structures resident on the device. The device enables editing during text entry and also provides a learning function that allows the disambiguation function to adapt to provide a customized experience for the user. The disambiguation function can be selectively disabled and an alternate keystroke interpretation system provided.
    Type: Grant
    Filed: April 4, 2005
    Date of Patent: August 7, 2012
    Assignee: Research In Motion Limited
    Inventors: Vadim Fux, Jason T. Griffin
  • Patent number: 8232945
    Abstract: A gamma voltage generator can control brightness of a first color pixel unit and a second color pixel unit. A first potential divider is coupled between a first node and a second node for generating a first main gamma voltage. At least one second potential divider is coupled between the second node and a third node for generating a first sub-gamma voltage and a second sub-gamma voltage. The brightness of the first color pixel unit is controlled by the first main gamma voltage and the first sub-gamma voltage. The brightness of the second color pixel unit is controlled by the first main gamma voltage and the second sub-gamma voltage.
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: July 31, 2012
    Assignee: AU Optronics Corp.
    Inventors: Hung-Min Shih, Chung-Kuang Tsai
  • Patent number: 8228349
    Abstract: A method for writing data to a display includes the steps of receiving a plurality of data bits, where each bit is associated with a different pixel of the display, reading the value of each data bit, determining whether each data bits has an off-state value, and generating a disable signal if each data bit has an off-state value. Responsive to a disable signal, the method further includes suspending the transfer of data to the pixels of the display, turning off a light source (e.g., an LED, laser, etc.) for a time period dependent on the significance of at least one of the data bits, and/or forcing each pixel of the display into an off state for a time period dependent on the significance of at least one of the data bits. A display driver circuit for performing the methods of the present invention is also disclosed.
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: July 24, 2012
    Assignee: OmniVision Technologies, Inc.
    Inventor: Sunny Yat-san Ng
  • Patent number: 8228350
    Abstract: A method for writing data to a display includes the steps of receiving a plurality of data bits, where each bit is associated with a different pixel of the display, reading the value of each data bit, determining whether each data bits has an off-state value, and generating a disable signal if each data bit has an off-state value. Responsive to a disable signal, the method further includes suspending the transfer of data to the pixels of the display, turning off a light source (e.g., an LED, laser, etc.) for a time period dependent on the significance of at least one of the data bits, and/or forcing each pixel of the display into an off state for a time period dependent on the significance of at least one of the data bits. A display driver circuit for performing the methods of the present invention is also disclosed.
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: July 24, 2012
    Assignee: OmniVision Technologies, Inc.
    Inventor: Sunny Yat-san Ng
  • Patent number: 8217914
    Abstract: An information display apparatus with proximity detection performance contains a display device that displays image information, a sensor constituted of plural detection electrodes, and an adjusting device of detection resolution that adjusts the detection resolution to be detected based on a distance between the sensor and an object that is contacted to any one of the detection electrodes.
    Type: Grant
    Filed: August 1, 2011
    Date of Patent: July 10, 2012
    Assignee: Sony Corporation
    Inventors: Atsushi Koshiyama, Haruo Oba
  • Patent number: 8174514
    Abstract: A demultiplexer, a light emitting display using the same, and a display panel thereof. The light emitting display includes: an image signal line for supplying a data signal for displaying an image through a plurality of first signal lines; a display area including a plurality of data lines for transmitting the data signal, a plurality of scan lines for transmitting a selection signal, and a plurality of pixels coupled to the data lines and the scan lines; a data driver for sequentially outputting a plurality of first control signals; a scan driver for sequentially applying the selection signal to the scan lines; and a demultiplexer including a plurality of switches for transmitting the data signal to at least two data lines in response to the first control signals. One of the first control signals is transmitted in at least two directions to switches in at least one of the switching units.
    Type: Grant
    Filed: June 23, 2005
    Date of Patent: May 8, 2012
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventor: Yang-Wan Kim
  • Patent number: 8164550
    Abstract: In a display device used in a compact mobile apparatus that uses a battery or the like as the poser supply, the display device consumes less power even when the display state is not switched for a long period of time. A memory element is provided in each pixel, but the number of the parts does not increase and the aperture ratio is maintained at a high level. A low power-consumption liquid crystal display device is achieved by providing the memory element in each pixel and transferring no image signal. The voltage held in the pixel memory in the liquid crystal display panel is used to generate an alternating drive signal in the pixel. Even when the image signal is not rewritten, the alternating drive avoids liquid crystal degradation and performs display operations. The simply configured memory element allows a liquid crystal display device without aperture ratio penalty to be achieved.
    Type: Grant
    Filed: February 1, 2007
    Date of Patent: April 24, 2012
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Toshio Miyazawa, Hideo Sato
  • Patent number: 8159417
    Abstract: An image display device includes: a display part, a measuring instrument, a determination unit, a detection unit, a decision unit, and a notification processing unit. The display part allows a user to visually recognize a display image by projecting an image light corresponding to the display image on an eye of the user in a state where some ambient light reaches at least either one of eyes of the user. The measuring instrument measures brightness of the ambient light. The determination unit determines brightness of the display image. The detection unit detects the difference between the brightness of the ambient light and the brightness of the display image. The decision unit decides timing of temporarily stopping the use of the display part. The notification processing unit performs notification which prompts the user to stop the use of the display part at the timing.
    Type: Grant
    Filed: January 11, 2010
    Date of Patent: April 17, 2012
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Kazuhiro Nakashima
  • Patent number: 8154490
    Abstract: A apparatus and method for driving a liquid crystal display that minimizes the generation of electro-magnetic interference (EMI) in a cost effective manner includes a gate control signal generator that generates a gate control signal using a externally inputted synchronizing signal, a data control signal generator that generates a data control signal using the synchronizing signal, a data aligner that re-aligns externally inputted video data, a plurality of buffers at output terminals of the gate control signal generator, the data control signal generator and the data aligner, and a control unit that applies control signals to the buffers to control current values of signals outputted by the buffers.
    Type: Grant
    Filed: May 28, 2008
    Date of Patent: April 10, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Jong Sang Baek, Sun Young Kwon
  • Patent number: 8144083
    Abstract: A method for driving a light-emitting device in which a plurality of pixel circuits are arranged in correspondence with the intersection of a plurality of scanning lines and a plurality data lines, the pixel circuit having a light-emitting element and a driving transistor that controls the current amount of a driving current flowing the light-emitting device, comprises repeating the process within unit period including a first period and a second period following the first period, wherein the second period process includes selecting one scanning line of the plurality of scanning lines, and supplying and holding a data voltage corresponding to the luminance of the light-emitting element to a gate of the driving transistor via the data lines with respect to the plurality pixel circuits connected the selected scanning lines, and wherein the first period process includes selecting two or more scanning lines of the plurality of scanning lines, and correcting the unbalance of the driving current output from the dri
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: March 27, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Kasori Takahashi, Eiji Kanda, Tokuro Ozawa
  • Patent number: 8139010
    Abstract: A gamma voltage generator can control brightness of a first color pixel unit and a second color pixel unit. A first potential divider is coupled between a first node and a second node for generating a first main gamma voltage. At least one second potential divider is coupled between the second node and a third node for generating a first sub-gamma voltage and a second sub-gamma voltage. The brightness of the first color pixel unit is controlled by the first main gamma voltage and the first sub-gamma voltage. The brightness of the second color pixel unit is controlled by the first main gamma voltage and the second sub-gamma voltage.
    Type: Grant
    Filed: November 18, 2005
    Date of Patent: March 20, 2012
    Assignee: AU Optronics Corp.
    Inventors: Hung-Min Shih, Chung-Kuang Tsai
  • Patent number: 8130206
    Abstract: An apparatus including a touch sensitive display including a first portion and a second portion; and a processor configured to detect user inputs on the touch sensitive display and control the touch sensitive display, wherein; the processor is configured to control the touch sensitive display, to enable a first state, in which the first portion of the touch sensitive display is operable to enable access to a first set of functions and the second portion of the touch sensitive display is operable to enable access to a second set of functions, and to enable, in response to the detection of a first user input when the touch sensitive display is in the first state, a second state in which the second portion of the touch sensitive display is not operable to enable access to any one of the second set of functions and the first portion is operable to enable access to a set of functions.
    Type: Grant
    Filed: October 9, 2007
    Date of Patent: March 6, 2012
    Assignee: Nokia Corporation
    Inventor: Sanna Lindroos
  • Patent number: 8115699
    Abstract: A plurality of positional information transmitters 100, each of which transmits positional information to which a plurality of unit spaces are each uniquely assigned, are disposed on a ceiling. A mobile terminal 10 receives the positional information transmitted from each of the positional information transmitters 100 and changes a terminal-side image in accordance with the received positional information. Furthermore, the mobile terminal 10 transmits to a server 300 current positional information and operation information indicating an instruction inputted by a user. The server 300 changes, in accordance with the current positional information and the operation information received by the mobile terminal 10, a floor image displayed on a plurality of floor displays 200 disposed on a floor. Thus, it becomes possible to provide a highly interesting and novel position detecting system.
    Type: Grant
    Filed: June 12, 2006
    Date of Patent: February 14, 2012
    Assignee: Nintendo Co., Ltd.
    Inventors: Shigeru Miyamoto, Takao Sawano, Hitoshi Yamazaki, Shinya Kawada
  • Patent number: 8106857
    Abstract: A light driving device comprises a signal generator, a demultiplexer and a light driving circuit. The signal generator generates a signal. The demultiplexer converts the signal to at least a control signal. The light driving circuit is controlled by the control signal.
    Type: Grant
    Filed: June 8, 2007
    Date of Patent: January 31, 2012
    Assignee: HTC Corporation
    Inventors: Jung-Yuan Tsai, Kuo-Feng Chen, Ching-Hao Tseng
  • Patent number: 8102331
    Abstract: Described herein is a support system for electronic displays having a support column and a bowed support arm having at least two docking stations. Each docking station is capable of supporting one display. The display supported therefrom can angle independently.
    Type: Grant
    Filed: November 13, 2000
    Date of Patent: January 24, 2012
    Inventor: Jerry Moscovitch
  • Patent number: 8068089
    Abstract: A display apparatus includes a first substrate provided with a closed container, two types of charged particles held in the closed container and having mutually different charge polarities and a substantially identical color, and first, second and third electrodes for generating an electric field in the closed container, with the third electrode being disposed on the first substrate. The display apparatus alternately executes a first display operation and a second display operation, wherein in the first display operation, the charged particles create a first distribution on a first electrode side by changing a voltage applied to the second electrode or the third electrode after a first reset operation in which the charged particles create a second distribution on a second electrode side and on a third electrode side by applying a first voltage to the second electrode and to the third electrode.
    Type: Grant
    Filed: January 26, 2005
    Date of Patent: November 29, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yojiro Matsuda