Control Means At Each Display Element Patents (Class 345/90)
  • Publication number: 20130285891
    Abstract: The present invention discloses a pixel electrode of a liquid crystal display (LCD) panel. The pixel electrode has a specific pattern or layout. The pixel electrode has a peripheral portion and branches surrounded by the peripheral portion. The pixel electrode further has at least one opening located inside a region surrounded by the peripheral portion. Each branch has a part connecting to the peripheral portion and said part has a width smaller than respective widths of other parts in each branch. The pixel electrode can improve the aperture rate of the LCD panel and suppress the appearance of disclination line at the center domain of the pixel.
    Type: Application
    Filed: April 27, 2012
    Publication date: October 31, 2013
    Applicant: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Xin Zhang
  • Patent number: 8570265
    Abstract: A liquid crystal display includes a first gate line transmitting a first gate signal, a first data line transmitting a first data voltage, and a first pixel connected to the first gate line and the first data line and including a first subpixel and a second subpixel. The first subpixel includes a first switching element connected to the first gate line, a first liquid crystal capacitor connected to the first switching element, and a first storage capacitor having a first terminal and a second terminal. The second subpixel includes a second switching element connected to the first gate line and the first data line, a second liquid crystal capacitor connected to the second switching element, and a second storage capacitor having a first terminal and a second terminal and having a capacitance different from a capacitance of the first storage capacitor.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: October 29, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kwang-Chul Jung, Mee-Hye Jung
  • Patent number: 8570264
    Abstract: A liquid crystal display with an improved reference viewing angle is presented. A pixel electrode includes first and second sub-pixel electrodes. A first switching device is connected to the first sub-pixel electrode, one of gate lines, and one of the data lines. A voltage of the second sub-pixel electrode relative to a predetermined voltage is lower than a voltage of the first sub-pixel electrode relative to the predetermined voltage, and an area of the first sub-pixel electrode is smaller than that of the second sub-pixel electrode.
    Type: Grant
    Filed: February 10, 2006
    Date of Patent: October 29, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong-Gyu Kim, Sang-Soo Kim
  • Patent number: 8564626
    Abstract: A line-sequential driving display that displays an image by exciting phosphor disposed on the rear surface of a face plate, transmitting light emitted from the excited phosphor through the face plate, and emitting the light from the front surface of the face plate. The display includes a light blocking layer disposed closer to the front surface of the face plate than the phosphor, the light blocking layer being configured to control the emission and non-emission of the light from the front surface on the basis of an electrical signal. Upon driving the line-sequential driving display, an area of the light blocking layer above a line-sequential driving selected line enters a light transmitting state and at least part of an area of the light blocking layer above a line-sequential driving unselected line enters a light blocking state.
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: October 22, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Minoru Ookoba
  • Patent number: 8564833
    Abstract: A problem of the present invention is to provide a control apparatus, a controlling method, a program, and a recording medium which can print by using at least one or more special colors in addition to four colors of Cyan, Magenta, Yellow, and Black. To solve the above problem, the control apparatus according to the present invention includes analyzing unit that provides command analysis for a CMYK plate and a clear toner plate, generating unit that generates image data of the CMYK plate based on a result of the command analysis by the analyzing unit, and embedding unit that embeds a clear toner attribute obtained by analyzing the clear toner plate in an attribute flag accompanying each of pixels of the image data of the CMYK plate, which is generated by the generating unit.
    Type: Grant
    Filed: September 1, 2011
    Date of Patent: October 22, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Junichi Yamakawa
  • Patent number: 8564582
    Abstract: A display device includes a pixel array and a drive unit that drives the pixel array. The pixel array includes first and second scanning lines in rows, signal lines in columns, a matrix of pixels arranged at respective intersections of the scanning lines and the signal lines, power supply lines that supply power to each of the pixels, and ground lines. The drive unit includes a first scanner that sequentially supplies first control signals to the corresponding first scanning lines to perform line-sequential scanning on the pixels on a row-by-row basis, a second scanner that sequentially supplies second control signals to the corresponding second scanning lines in synchronization with the line-sequential scanning, and a signal selector that supplies video signals to the signal lines in synchronization with the line-sequential scanning. Each pixel includes a light-emitting element, a sampling transistor, a drive transistor, a switching transistor, and a pixel capacitor.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: October 22, 2013
    Assignee: Sony Corporation
    Inventors: Junichi Yamashita, Katsuhide Uchino
  • Patent number: 8564519
    Abstract: An operating method and a display panel are provided. The method Includes a number steps. A display panel is provided, and has a pixel element, the pixel element including an n-bit memory, n being a positive integer in accordance with image data. The pixel element is driven by using a k-th data voltage, k being smaller than 2n, the k-th data voltage ranging between a plurality of data voltages having absolute values in an increasing order. When k is odd, the k-th data voltage has one of positive and negative polarities. When k is even, the k-th data voltage has the other one of positive and negative polarities.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: October 22, 2013
    Assignee: Chimei Innolux Corporation
    Inventors: Keitaro Yamashita, Masahiro Yoshiga, Satoru Takahashi
  • Patent number: 8552945
    Abstract: A liquid crystal display device and method for driving the same is described for reducing a compensating deviation of a common voltage. The liquid crystal display device includes a liquid crystal display panel; a data driver for driving data lines of the liquid crystal display panel; a gate driver for driving gate lines of the liquid crystal display panel; and a common voltage compensating unit for generating a plurality of compensating signals for compensating respective distortions of common voltages at a plurality of common regions of a common electrode of the liquid crystal display panel by using common voltages fed back from the common regions, and supplying compensating signals corresponding to each of the plurality of common regions.
    Type: Grant
    Filed: June 5, 2008
    Date of Patent: October 8, 2013
    Assignee: LG Display Co., Ltd.
    Inventor: Chae Wook Lim
  • Patent number: 8553022
    Abstract: Disclosed herein is an image display device including a display section, a signal line driving circuit, and a scanning line driving circuit. The display section is formed by arranging pixel circuits in a form of a matrix. The signal line driving circuit is configured to output a driving signal for a signal line to the signal line of the display section. The scanning line driving circuit is configured to output a driving signal for a scanning line to the scanning line of the display section. The pixel circuits each include at least a light emitting element, a driving transistor configured to drive the light emitting element connected to a source by a driving current corresponding to a gate-to-source voltage, a storage capacitor configured to retain the gate-to-source voltage, and a writing transistor configured to set a terminal voltage of the storage capacitor by a voltage of the signal line.
    Type: Grant
    Filed: July 22, 2009
    Date of Patent: October 8, 2013
    Assignee: Sony Corporation
    Inventors: Tomoaki Handa, Yuuki Seo, Katsuhide Uchino
  • Patent number: 8547368
    Abstract: A display driving circuit of the present invention includes: a source driver (20) which outputs a source signal; a gate driver (30) which outputs a gate signal for turning on a switching element on a row; and a CS driver (40) which outputs a CS signal (CSOUT) whose electric potential is switched in a predetermined direction (low to high or high to low) in accordance with a polarity of the source signal. A CS driver (CSn) on an n-th row outputs a CS signal (CSOUT) to the n-th row in accordance with a gate signal (GLn) for the n-th row outputted from a gate driver (Gn) provided on the n-th row. This makes it possible to provide a display driving circuit which enables CC driving with a simple configuration.
    Type: Grant
    Filed: September 2, 2008
    Date of Patent: October 1, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Makoto Yokoyama, Yasushi Sasaki, Yuhichiroh Murakami
  • Patent number: 8548528
    Abstract: A mobile terminal including a touch pad; a first display unit including a transparent display; a second display unit including a non-transparent display disposed below the transparent display; and a controller configured to selectively control the first and second display units to operate in a dual-operation mode by controlling at least a portion of the first display unit to be transparent and not display information and controlling the second display unit to display information that can be viewed through the at least the portion of the first display unit that is transparent.
    Type: Grant
    Filed: November 26, 2010
    Date of Patent: October 1, 2013
    Assignee: LG Electronics Inc.
    Inventors: Jonghwan Kim, Byunghee Hwang
  • Patent number: 8547320
    Abstract: In conventional liquid crystal display controllers, the display is reduced in the stand-by state but the liquid crystal display duty is not changed, i.e., even the common electrodes of the rows that are not producing display are scanned, and the consumption of electric power is not decreased to a sufficient degree in the stand-by state. A liquid crystal display controller includes a drive duty selection register capable of being rewritten by a microprocessor, and a drive bias selection register. When the display is changed from the whole display on a liquid crystal display panel to a partial display on part of the rows only, the preset values of the drive duty selection register and of the drive bias selection register are changed, so that the display is selectively produced on a portion of the liquid crystal display panel at a low voltage with a low-duty drive.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: October 1, 2013
    Assignee: Renesas Electronics Corporation
    Inventors: Yoshikazu Yokota, Kunihiko Tani, Gorou Sakamaki, Katsuhiko Yamamoto, Takashi Yoneoka, Kazuhisa Higuchi, Kimihiko Sugiyama
  • Patent number: 8547315
    Abstract: The invention provides an active matrix EL display device which can perform a clear multi-gray scale color display. In particular, the invention provides a large active matrix EL display device at low cost by a manufacturing method which can selectively form a pattern. Power supply lines in a pixel portion are arranged in matrix by the manufacturing method which can selectively form a pattern. Further, capacitance between wirings is reduced by providing a longer distance between adjacent wirings by the manufacturing method which can selectively form a pattern.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: October 1, 2013
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yasunori Yoshida, Hajime Kimura, Shinji Maekawa, Osamu Nakamura, Shunpei Yamazaki
  • Publication number: 20130249876
    Abstract: A shift register apparatus including a first shift register cell is disclosed. The first shift register cell includes a first logic unit, a first control unit and a first output unit. The first logic unit generates a first control signal and a second control signal according to a start signal and a first setting signal. During a first period, the first control unit employs the first and second control signals to make a first clock signal update the first setting signal and the first output unit employs the first and second control signals to make a second clock signal update the first shifted signal. During a second period, the first output unit controls the first shifted signal according to the first and second control signals such that the first shifted signal does not follow the second clock signal.
    Type: Application
    Filed: March 11, 2013
    Publication date: September 26, 2013
    Applicant: INNOLUX CORPORATION
    Inventors: Sheng-Feng HUANG, Cheng-Hsiao LIN
  • Patent number: 8542227
    Abstract: In a display apparatus, pixels are arranged in a matrix defined by gate lines and data lines, and each pixel includes a first sub pixel charged to a first pixel voltage and a second sub pixel charged to a second pixel voltage having a same voltage level as the first pixel voltage. A voltage controller controls a voltage level of the first and second pixel voltages charged in the pixels corresponding to the first through penultimate pixel rows in response to a next gate signal. A dummy voltage controller controls a voltage level of the first and second pixel voltages charged in the pixels corresponding to the last pixel row in response to a dummy gate signal. Where a dummy voltage controller is not included, a black matrix partially covers the efficient display area of the pixels corresponding to the last pixel row.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: September 24, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hye-Ran You, Hee-Wook Do, Seung-Hoo Yoo, Sung-Min Kang, Hoon Kim, Hyun-Cheol Moon, Ho-Kyoon Kwon
  • Patent number: 8542493
    Abstract: A flat display apparatus has a flat display panel; a frame that is installed on a rear face side of the display panel; a cover that covers at least a rear face side of the frame; and a high-voltage power supply that applies high voltage to the display panel. The high-voltage power supply has a plurality of cases, each of which encloses one or more transformers and rectifier circuits, and obtains high voltage by connecting the plurality of cases in series, and the plurality of cases are arranged in a space created between the frame and the cover so as to be disposed on a plane in parallel with a screen of the display panel.
    Type: Grant
    Filed: July 14, 2010
    Date of Patent: September 24, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Naoto Abe, Eisaku Tatsumi, Tatsuya Nakajima
  • Patent number: 8537103
    Abstract: An object of the present invention is to provide an active matrix type electrophoresis display device whose number of the times of writings is further smaller. In an electrophoresis display device which performs the display of picture using a n-bit digital picture signal, the respective pixels are divided into a plurality of sub-pixels, the respective sub-pixels have a 1-bit memory circuit. Since an electrophoresis element is stable in once written state, upon the display of static picture, the picture is retained by the digital picture signal retained in a memory circuit, therefore, a periodic refresh operation which is conventionally considered to be required are capable of being omitted.
    Type: Grant
    Filed: May 27, 2009
    Date of Patent: September 17, 2013
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Jun Koyama
  • 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
  • Publication number: 20130235025
    Abstract: In one embodiment, a liquid crystal display device is disclosed in which a gate driver applies a gate-on pulse so that a second period is longer than a first period. Among gate-on pulses applied before the moment of polarity inversion of a data signal, the last end of the gate-on pulse nearest to the moment of the polarity inversion is earlier than the end time of the horizontal period during which the gate-on pulse is applied. The first period starts at the last end of the gate-on pulse and ends at the end time of the horizontal period during which the gate-on pulse is applied. The second period starts at the moment of the polarity inversion and ends at the moment of the application start of the gate-on pulse nearest to the moment of the polarity inversion among the gate-on pulses applied after the polarity inversion.
    Type: Application
    Filed: March 25, 2013
    Publication date: September 12, 2013
    Inventors: Masae KITAYAMA, Kentaro Irie, Fumikazu Shimoshikiryoh, Toshihide Tsubata, Naoshi Yamada
  • Patent number: 8525767
    Abstract: The present invention directs to a method for automatically compensating a common electrode voltage, comprising: calculating an average shift amount of a common electrode voltage according to gray scale data in a line on a displayed image, processing the average shift amount of the common electrode voltage to be a digital signal then converting it into an analog signal then into an average shift amount voltage waveform, and superposing it with a common electrode voltage waveform to form a new output signal waveform for driving the common electrode; the present invention also directs to a device for automatically compensating a common electrode voltage, comprising a data input module, a looking up module, a data operation module, a data encoding and converting module, a waveform generator and an operational amplification module.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: September 3, 2013
    Assignee: Beijing Boe Optoelectronics Technology Co., Ltd.
    Inventor: Xinshe Yin
  • Patent number: 8513897
    Abstract: An OLED display with a current stabilizing device employs a current stabilizing device which is coupled between the driving-voltage line of the data driver and the data-power-supply wires to produce an output voltage higher than the driving voltage by boosting the driving voltage of the data driver, and then to maintain the current of the OLEDs at a constant level by performing current limiting, so that the problem of the current-ununiformity caused uneven luminance of the conventional OLED display can be solved, and the possibility that the luminance of the OLED panel will decay in a short period of time is reduce.
    Type: Grant
    Filed: October 1, 2010
    Date of Patent: August 20, 2013
    Assignee: Winstar Display Co., Ltd
    Inventors: Yu-Pin Liao, Ying-Ju Liu, Chih-Wei Chiang
  • Patent number: 8514179
    Abstract: A method and handheld electronic device for compensating for differential aging of display screen on a handheld electronic device wherein in a first position a first portion of the display screen is hidden from view while a second portion of the display screen is viewable, and in a second position the first portion and the second portion of the display screen are viewable. Over time, relative illumination durations of the first and second portions are tracked and based on the relative illumination durations, a relative degree of illumination of one or both of the first portion and the second portion are adjusted when the display screen is in the second position to compensate for differential aging between the first and second portion.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: August 20, 2013
    Assignee: Research In Motion Limited
    Inventor: Jason Tyler Griffin
  • Patent number: 8508513
    Abstract: A display device which enhances time-wise likelihood for a leak current from a floating memory node by increasing the number of writings of a voltage to a floating memory node. A vertical driver includes: a shift register including basic circuits which output common electrode driving pulses based on a transfer; and a common electrode driver including common basic circuits which receive the common electrode driving pulses and the transfer clock. Each common basic circuit includes: a circuit A which fetches an AC signal based on the common electrode driving pulse; a circuit B which outputs, based on the AC signal, a first common voltage or a second common voltage which differs from the first common voltage in voltage level to the common electrodes corresponding to the AC signal; and a circuit C which holds a state of the circuit B based on the transfer clock.
    Type: Grant
    Filed: March 5, 2009
    Date of Patent: August 13, 2013
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Takumi Shigaki, Toshio Miyazawa, Hideo Sato, Masahiro Maki
  • Patent number: 8502799
    Abstract: Displays with touch sensing circuitry integrated into the display pixel stackup are provided. An integrated touch screen can include multi-function circuit elements that can operate as circuitry of the display system to generate an image on the display, and can also form part of a touch sensing system that senses one or more touches on or near the display. The multi-function circuit elements can be, for example, capacitors in display pixels that can be configured to operate as storage capacitors/electrodes, common electrodes, conductive wires/pathways, etc., of the display circuitry in the display system, and that may also be configured to operate as circuit elements of the touch sensing circuitry.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: August 6, 2013
    Assignee: Apple Inc.
    Inventors: Steven Porter Hotelling, Marduke Yousefpor, Shih Chang Chang, John Z. Zhong
  • Patent number: 8502754
    Abstract: A method and a driving circuit for driving a current-driven active matrix organic light emitting diode (AMOLED) pixel are provided. A driving power source is used to pre-charge the capacitor before a current source charges/discharges a capacitor connected to a driving thin film transistor of the pixel. Therefore, an insufficient brightness problem during displaying a low gray can be solved.
    Type: Grant
    Filed: February 16, 2004
    Date of Patent: August 6, 2013
    Assignee: Au Optronics Corporation
    Inventor: Chiao-Ju Lin
  • 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
  • Patent number: 8493302
    Abstract: The present invention aims to reduce flickers of the liquid crystal display device and enable the use of liquid crystal material exhibiting a high response speed, and to enhance light usage efficiency of the field sequential type liquid crystal display device. After writing the video signal to all the pixels in each sub-frame period, a correction voltage signal or an alternating signal having a frequency of greater than or equal to a certain frequency is input to the data line, so that the magnitude of the leakage current of each pixel TFT caused by the difference in polarity of the video signal with respect to the opposing electrode written to the pixel electrode is equalized, and the flickers are greatly reduced.
    Type: Grant
    Filed: March 21, 2008
    Date of Patent: July 23, 2013
    Assignee: NLT Technologies, Ltd.
    Inventor: Hiroyuki Sekine
  • Patent number: 8487861
    Abstract: There is provided a driving circuit that drives an electro-optic device by outputting data signals that are subjected to serial-to-parallel conversion into m (m is a natural number greater than or equal to 2) channels through m image signal lines to a plurality of data lines. The driving circuit includes an adjusting section that adjusts the m-channel data signals so that, when a reference signal whose signal level is a reference level is input, the m-channel data signals at least partly reach signal levels different from the reference level for each channel, and the differences between the signal levels and the reference level fall within a predetermined range; and an interchanging section that interchanges the adjustment values adjusted by the adjusting section among the m-channel data signals every predetermined period.
    Type: Grant
    Filed: February 5, 2009
    Date of Patent: July 16, 2013
    Assignee: Seiko Epson Corporation
    Inventor: Akihiko Yonemochi
  • Patent number: 8487878
    Abstract: The terminal apparatus includes input keys configured to detect pressing conducted thereon respectively, key backlights each of which emits a plurality of colors of light to shine corresponding one of the input keys, and a backlight controller configured to control the plurality of colors of light independently for each of the key backlights. The backlight controller causes the key backlights to emit light of a first color in a case where an input key out of the input keys detects pressing thereon, and changes an emission color of a key backlight corresponding to the input key detecting the pressing from the first color to a second color when a state of the pressing becomes a predetermined state.
    Type: Grant
    Filed: July 23, 2009
    Date of Patent: July 16, 2013
    Assignee: NEC Corporation
    Inventor: Toru Aoike
  • Patent number: 8487860
    Abstract: There is provided a driving circuit that drives an electro-optic device by outputting data signals that are subjected to serial-to-parallel conversion into m channels through m (m is a natural number greater than or equal to 2) image signal lines to a plurality of data lines. The driving circuit includes an adjusting section that adjusts the m-channel data signals so that, when a reference signal whose signal level is a reference level is input, the m-channel data signals at least partly reach signal levels different from the reference level for each channel, the number of continuous channels of signals at the same signal level is smaller than a predetermined number, and the differences between the signal levels and the reference level fall within a predetermined range.
    Type: Grant
    Filed: February 5, 2009
    Date of Patent: July 16, 2013
    Assignee: Seiko Epson Corporation
    Inventor: Akihiko Yonemochi
  • Patent number: 8482503
    Abstract: A liquid crystal display and a method of driving the same are disclosed. The liquid crystal display includes a liquid crystal display panel including data lines and gate lines crossing each other and liquid crystal cells, a timing control signal generating unit, a data drive circuit supplying a data voltage to the data lines, and a gate drive circuit. The timing control signal generating unit generates a first gate timing control signal for controlling a scan direction of the liquid crystal display panel in a sequential direction and a second gate timing control signal for controlling the scan direction in a reverse sequential direction. The gate drive circuit supplies a gate pulse to the gate lines while a shift direction of the gate pulse changes in response to the first and second gate timing control signals.
    Type: Grant
    Filed: November 19, 2008
    Date of Patent: July 9, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Hongsung Song, Woongki Min, Yonggi Son, Suhyuk Jang
  • Patent number: 8482508
    Abstract: A LCD display device includes a LCD panel including a plurality of LCD units with trapezoid structure, and three sides of the LCD unit all include three liquid crystal molecules (LCM), the LCMs of all of the first side of the LCD unit constitute a first LCM array and form a first display interface, the LCMs of all of the second side constitute a second LCM array and form a second display interface, and the LCMs of all of the third side constitute a third LCM array and form a third display interface. The LCD display device also includes three signal conversion modules configured to convert three display signals into three control signals respectively, and three driving modules configured to drive the three LCM arrays according to the control signals and cause the first, the second, and the third display interface to display corresponding images.
    Type: Grant
    Filed: October 25, 2009
    Date of Patent: July 9, 2013
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Shih-Fang Wong, Xin Lu, Yu-Cui Zhou
  • Patent number: 8477130
    Abstract: A display device capable of driving at low power consumption is provided. In a display device (1) for displaying images by supplying voltages on the sub-pixel electrode (Ep) and the common electrode (Ecom), the display device (1) includes a voltage selection circuit (102) for receiving first and second refresh voltages (4V and ?5V). The voltage selection circuit (102) supplies the first refresh voltage (5V) on the sub-pixel electrode (Ep) through a first current path (Pa) when the data voltage on the sub-pixel electrode (Ep) is ?5V, while the second refresh voltage (?5V) is supplied to the sub-pixel electrode (Ep) through a second path (Pb) when the data voltage on the sub-pixel electrode (Ep) is 5V.
    Type: Grant
    Filed: May 9, 2006
    Date of Patent: July 2, 2013
    Assignee: TPO Hong Kong Holding Limited
    Inventor: Kazuyuki Hashimoto
  • Patent number: 8471799
    Abstract: A liquid crystal display having pixel data self-retaining functionality includes a gate line for delivering a gate signal, a data line for delivering a data signal, a control unit for providing a first control signal and a second control signal, a data switch, a voltage-control inverter, a liquid crystal capacitor, and a pass transistor. The data switch is utilized for inputting the data signal to become a first data signal according to the gate signal. The voltage-control inverter is utilized for inverting the first data signal to generate a second data signal furnished to the liquid crystal capacitor according to the enable operation of the first control signal. The pass transistor is used for passing the second data signal to become the first data signal or for passing the first data signal to become the second data signal according to the second control signal.
    Type: Grant
    Filed: April 6, 2010
    Date of Patent: June 25, 2013
    Assignee: AU Optronics Corp.
    Inventors: Yu-Hsuan Li, Yu-Jung Liu, Chun-Hung Kuo, Chun-Huai Li
  • Patent number: 8471800
    Abstract: A display device displays images with a plurality of signal lines and includes spare lines, each being arranged to be connectable to the signal lines so as to be used for recovery of the signal lines from disconnection. Each of the spare lines has constricted sections for cutting. With this arrangement, it is possible to easily and properly recover the signal lines from disconnection.
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: June 25, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Hidetoshi Nakagawa
  • Patent number: 8466864
    Abstract: A field-sequential display is operated in one of a color mode or a grayscale mode. In the color mode, a video source provides image content in the form of multiple-color image data having a frame rate of X Hz and a display controller uses the multiple-color image data to drive the field-sequential display so as provide multiple-color image content at the field-sequential display. In the grayscale mode, the display controller generates grayscale image data from the multiple-color image data and the display controller then drives the field-sequential display with the grayscale image data at a lower frame rate of Y Hz. While in the grayscale mode, the display controller can take advantage of the enhanced contrast provided by the grayscale image content to reduce or disable backlighting at the field-sequential display. The reduced timing requirements afforded by the lower frame rate, as well as the reduction or elimination of backlighting, can reduce power consumption compared to the color mode.
    Type: Grant
    Filed: October 8, 2008
    Date of Patent: June 18, 2013
    Assignee: Dell Products, LP
    Inventors: Eugen Munteanu, Stefan Peana, John M. Knadler, IV
  • Patent number: 8456399
    Abstract: A liquid crystal display that is unsusceptible to the effect of a pixel potential during writing of data to a memory, allowing a large margin to be provided against variation in characteristics of transistors forming a pixel circuit, and a portable terminal having the liquid crystal display. In a pixel circuit including a memory circuit (25), separate paths are provided for writing image data from a signal line (16-i) to the memory circuit (25) via a data-write switch (24) and for reading image data held in the memory circuit (25) out into a liquid crystal cell unit via a data-read switch (27). Furthermore, image data are read via a data-read buffer (26). Accordingly, when image data is written to the memory, data held in the memory circuit (25) is not affected by a pixel potential. Thus, a large margin can be provided against variation in the characteristics of the transistors forming the pixel circuit, serving to avoid variation in picture quality due to the variation in the transistor characteristics.
    Type: Grant
    Filed: May 10, 2010
    Date of Patent: June 4, 2013
    Assignee: Japan Display West, Inc.
    Inventors: Noboru Toyozawa, Yoshiharu Nakajima
  • Patent number: 8456400
    Abstract: A liquid crystal device including a plurality of scanning lines, a plurality of data lines, a plurality of pixel electrodes, a capacitor electrode, a control circuit, a scanning line driving circuit, and a data line driving circuit.
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: June 4, 2013
    Assignee: Japan Display West Inc.
    Inventors: Shin Fujita, Tomotoshi Kato, Kengo Shiragami
  • Patent number: 8456403
    Abstract: A liquid crystal display and a driving method thereof are provided. The liquid crystal display includes: a liquid crystal display panel including a plurality of data lines, a plurality of gate lines crossing the data lines, and pixels arranged in m×n matrix; a register for defining polarity pattern information, frame rotation information, and line rotation information to determine a polarity of a data voltage charged in N lines, wherein N is a positive integer less than n; a timing controller for generating a polarity control signal to control polarities of data voltages charged in n lines of the liquid crystal display panel based on the information read from the register; and source drive ICs for converting the polarities of the data voltages supplied to the data lines in response to the polarity control signal.
    Type: Grant
    Filed: September 10, 2009
    Date of Patent: June 4, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Suhyuk Jang, Yangseok Jeong, Songjae Lee
  • Patent number: 8456398
    Abstract: A liquid crystal display module including a liquid crystal display having a plurality of liquid crystal cells, a plurality of switches and a common connection, each liquid crystal cell being connected between a respective switch and a common connection. The common connection includes strips, each extending in a first direction and the strips being arranged side-by-side in a second direction. The liquid crystal cells are arranged in rows, each row being along and connected to a strip. The liquid crystal display has gate lines, each gate line operating a respective plurality of the switches. For dot inversion, each gate operates switches connected to respective liquid crystal cells of two adjacent rows. For each row, a first set of alternate liquid crystal cells are connected to respective switches operated by a respective gate line and a second set of interspersed liquid crystal cells are connected to respective switches operated by another respective gate line.
    Type: Grant
    Filed: April 3, 2009
    Date of Patent: June 4, 2013
    Assignee: Sony Corporation
    Inventors: Daisuke Ito, Yoshitoshi Kida, Takeya Takeuchi, David Pusey, Peter Shadwell
  • Patent number: 8456401
    Abstract: The gate electrode is formed above the polycrystalline semiconductor layer through the gate insulating film. The polycrystalline semiconductor layer includes a first region overlapping with the gate electrode in plan view. The first region is sandwiched between the second region and the third region. The second region of the polycrystalline semiconductor layer includes a first impurity diffusion region and two second impurity diffusion regions opposite in conductivity type to the first impurity diffusion region. The first region and the first impurity diffusion region are in contact with each other at a first boundary. The first region and the two second impurity diffusion regions are in contact with each other at second boundaries. The two second impurity diffusion regions sandwiching the first impurity diffusion region are provided along the gate electrode. Thus, a leak current is suppressed.
    Type: Grant
    Filed: August 7, 2008
    Date of Patent: June 4, 2013
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Katsumi Matsumoto, Kozo Yasuda, Yasukazu Kimura, Takuo Kaitoh, Toshihiko Itoga, Hiroshi Kageyama
  • Patent number: 8451203
    Abstract: A pixel arrangement method for a liquid crystal display includes the steps of: inputting data signals with different driving polarities to odd data lines and even data lines respectively; and changing connections between a gate of thin film transistor and gate lines and connections between a source of thin film transistor and data lines in every pixel area whereby the driving polarity is inverted every two pixel areas in a transverse direction and is inverted every pixel area in a longitudinal direction. The present invention further provides a liquid crystal display.
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: May 28, 2013
    Assignee: Hannstar Display Corp.
    Inventors: Ling Chih Kao, Chia Hua Yu, Sung Chun Lin, Kun Chen Lee
  • Patent number: 8451202
    Abstract: A display assembly may include a plurality of pixel elements, of which a set of pixel elements include both a display cell and a memory cell. The display cell and the memory cell may be connected to receive data from a common source at the same time.
    Type: Grant
    Filed: March 5, 2008
    Date of Patent: May 28, 2013
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Mostafa Kashi
  • Publication number: 20130127697
    Abstract: A multiplexer circuit includes multiple groups of switches and multiple groups of control lines. Each control line in each one of the groups of control lines is coupled to a control end of at least one switch in corresponding one of the groups of switches, and each group of control lines is configured for synchronously transmitting an identical group of control signals. A display panel and method for transmitting signals in a display panel is also disclosed herein.
    Type: Application
    Filed: April 27, 2012
    Publication date: May 23, 2013
    Applicant: AU Optronics Corporation
    Inventors: Nan-Ying LIN, Yu-Hsin TING, Chung-Lung LI, Chung-Lin FU, Wei-Chun HSU, Pei-Hua CHEN
  • Patent number: 8446354
    Abstract: An exemplary liquid crystal display (200) includes a liquid crystal panel (201) having a plurality of pixel units (240), a scanning circuit (202) configured to activate the pixel units, a data circuit (203) configured to provide data voltage signals the pixel unit via a plurality of data lines (220), and a common voltage circuit (205) configured to generate a common voltage signal. Each pixel unit includes a pixel electrode (242), a common electrode (243), and a coupling member (245). The coupling member is connected between the pixel electrode and a corresponding one of the data lines, and is configured to transfer an electrical potential shift of the corresponding common electrode to the corresponding data line when one of the data voltage signals is applied to the pixel electrode. The common voltage circuit is configured to compensate the common voltage signal according to a feedback signal obtained from the data lines.
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: May 21, 2013
    Assignees: Innocom Technology (Shenzhen) Co., Ltd, Chimei Innolux Corporation
    Inventors: Shun-Ming Huang, An Shih
  • Publication number: 20130120344
    Abstract: An output compensation circuit and an output compensation method for an LCD data drive IC as well as an LCD comprising the same are disclosed. The output compensation circuit comprises a data drive IC, a plurality of first switch units and a plurality of delay control units. A plurality of output channels of the data drive IC each are connected with a corresponding row of pixel electrodes on a glass substrate via a data line respectively to output a charging signal. Each of the first switch units control the corresponding output channel according to a delay control signal generated by the corresponding delay control unit. Each of the delay control units is configured to generate the delay control signal-used to control the first switch unit to be turned on after a predetermined delay so that the charging time is the same for all the pixel electrodes.
    Type: Application
    Filed: November 18, 2011
    Publication date: May 16, 2013
    Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Liang-chan Liao, Po-shen Lin, Dongsheng Guo
  • Patent number: 8436786
    Abstract: A multi-screen synchronized playback system capable of synchronizing, with high accuracy, playback start times of content to be displayed on multiple screens. The multi-screen synchronized playback system has a plurality of display control terminals and a synchronization server connected to the plurality of display control terminals. The synchronization server includes a synchronization time transmitting section for simultaneously transmitting time information of a clock of the synchronization server to the plurality of display control devices. The display control terminal includes a time setting section for setting time on a clock of the display control terminal based on the time information simultaneously transmitted from the synchronization server, and a display control section for starting playback of content at a playback start time set for each content, based on the time on the clock of the display control terminal.
    Type: Grant
    Filed: February 13, 2008
    Date of Patent: May 7, 2013
    Assignee: Sony Corporation
    Inventor: Satoru Kamoto
  • Patent number: 8436794
    Abstract: A device and a method of optimizing brightness of a liquid crystal display panel includes a plate to mount a target liquid crystal display panel, a back light to provide light to the liquid crystal display panel, a connecting unit to connect to a pad unit of the liquid crystal display panel, a detecting unit to produce a brightness signal by detecting a brightness of a predetermined region of the liquid crystal display panel, a converting unit to convert the brightness signal into a brightness data, a comparative unit to store a standard data and to compare the brightness data with the standard data, and a processing unit to produce an operation voltage according to a result signal provided by the comparative unit and to provide the operation voltage to the connecting unit, wherein the detecting unit detects the brightness by concentrating light of sight angle range is ±10° or below.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: May 7, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventor: Jin-woo Park
  • Patent number: 8427725
    Abstract: The present invention relates to a light modulating device, comprising a SLM and a pixelated optical element, in which a group of at least two adjacent pixels of the SLM in combination with a corresponding group of pixels in the pixelated optical element form a macropixel, the pixelated optical element being of a type such that its pixels comprise a fixed content, each macropixel being used to represent a numerical value which is manifested physically by the states of the pixels of the SLM and the content of the pixels of the pixelated optical element which form the macropixel.
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: April 23, 2013
    Assignee: Seereal Technologies S.A.
    Inventors: Gerald Futterer, Bo Kroll, Steffen Buschbeck
  • Patent number: RE44267
    Abstract: A liquid crystal display device which utilizes an active matrix substrate and its substrate, and which is provided with a novel method of manufacture which can reduce the manufacturing process of amorphous silicon thin film transistors of reverse stagger construction, and an electrostatic protection means which is created using this method of manufacture. In a thin film transistor manufacturing process, along with forming an aperture for connecting the contact hole and the external terminal in a manufacturing process for a thin film transistor, utilization is made of ITO film as the wiring. The electrostatic protection means is formed from a bi-directional diode (electrostatic protection element) which is composed utilizing an MOS transistor connected between the electrode (PAD) for connecting the external terminal, and the joint electric potential line.
    Type: Grant
    Filed: October 2, 1996
    Date of Patent: June 4, 2013
    Assignee: Seiko Epson Corporation
    Inventor: Takashi Satou