Synchronizing Means Patents (Class 345/213)
  • Publication number: 20150029173
    Abstract: An image projection device includes: a drive controller that causes generation of light of a specified color tone by a combination of light to be transmitted by a liquid crystal panel to project image data onto a projection plane; an image capturing controller that receives a synchronization signal that specifies a period in which the liquid crystal panel does not transmit light from the drive controller and causes capturing of an image of the projection plane according to the period that is specified by the synchronization signal; an illuminated image detector that detects, from the captured image of the image data, an illuminated image that is illuminated by an illuminating device on the projection plane; and an illuminated image generator that generates projection image data obtained by combining given image data in a position in which the illuminated image is detected.
    Type: Application
    Filed: July 14, 2014
    Publication date: January 29, 2015
    Inventors: Otoichi NAKATA, Fumihiro NAKASHIGE, Shinichi SUMIYOSHI
  • Publication number: 20150029234
    Abstract: Disclosed is a light source unit which emits fluorescence light to a display element which displays an image by using the fluorescence light including an excitation light source which emits excitation light, a fluorescent plate including a fluorescence emission region on a surface of a circular substrate which emits the fluorescence light by the fluorescence emission region being irradiated with the excitation light from the excitation light source, a drive unit which rotates the fluorescent plate in a circumferential direction and a control unit which controls the excitation light source and the drive unit.
    Type: Application
    Filed: July 15, 2014
    Publication date: January 29, 2015
    Inventors: Takeo ISHIZU, Toshiharu ARAI
  • Publication number: 20150029174
    Abstract: A display device including a scanning circuit formed using single conductivity type thin-film transistors suppresses threshold changes in the thin-film transistors forming the scanning circuit by controlling a circuit for maintaining an internal node of the unit circuits forming the scanning circuit at a constant potential is controlled by a clock signal or a pulse signal having a smaller amplitude than the amplitude of an output signal.
    Type: Application
    Filed: July 23, 2014
    Publication date: January 29, 2015
    Applicant: NLT Technologies, Ltd.
    Inventor: Tomohiko OTOSE
  • Patent number: 8941575
    Abstract: According to one embodiment of the present invention, a timing controller for a display, includes a first unit, a second unit and a third unit. The first unit is configured to generate an image signal from a first input signal. The second unit is configured to generate a multitude of timing signals and a control signal from a multitude of second input signals, the control signal being generated after the multitude of timing signals are generated. The third unit is configured to generate a multitude of first signals from the multitude of timing signals after receipt of the control signal from the second unit. The image signal and the multitude of first signals are configured to drive the display when the timing controller is connected to the display.
    Type: Grant
    Filed: March 20, 2013
    Date of Patent: January 27, 2015
    Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Ling Shen, Yuan Li
  • Patent number: 8935551
    Abstract: A semiconductor IC including a supply voltage generator, one or more first circuit blocks, and one or more second circuit blocks. The supply voltage generator is configured to generate a first supply voltage and a second supply voltage based on an external supply voltage, and to provide the first supply voltage to a first power bus and the second supply voltage to a second power bus. The first circuit blocks are connected between the first power bus and the second power bus, and the second circuit blocks are connected between the second power bus and ground.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: January 13, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Wang Yu, Jae-Youl Lee, Jae-Jin Park
  • Publication number: 20150009203
    Abstract: The present invention relates to a digital display plotter for plotting images on a digital display device 18. A cursive imagery generator 12 generates imagery inputs at a plurality of respective update phases during a refresh period of the display device. A control 20 for the display device activates selected pixels of the digital display device in response to respective said imagery inputs, activation being controlled subsequent to each update phase during a refresh period. An input store 14, 16 associates each cursively generated imagery input with an update phase that the imagery input was generated during a refresh period. The control 20 is responsive to the input store and configured to deactivate the selected pixels activated in response to each imagery input dependent on the associated update phase of each imagery input.
    Type: Application
    Filed: September 22, 2014
    Publication date: January 8, 2015
    Applicant: BAE SYSTEMS plc
    Inventor: Robin George Fulton
  • Patent number: 8928651
    Abstract: A display includes a display panel, a pixel driving unit and a power supply for supplying power to the pixel driving unit. The display panel includes a plurality of pixels arranged in a matrix manner. The pixel driving unit is used for driving the pixels. The power supply includes an input power source, an output capacitor for providing an output voltage, and a control unit for controlling the input power source, such that in a frame period, the input power source charges the output capacitor during the non-refreshing duration of the pixels by the input power source and stops charging the output capacitor during the refreshing duration of the pixels.
    Type: Grant
    Filed: March 19, 2012
    Date of Patent: January 6, 2015
    Assignee: AU Optronics Corp.
    Inventors: Hung-Min Huang, Shih-Chieh Kuo
  • Publication number: 20150002504
    Abstract: A shift register for reducing size of a display apparatus through a reduction in falling edge time of a scan pulse. The shift register includes stages for sequentially outputting carry pulses and scan pulses. Each stage includes a carry output unit for generating a carry pulse, based on a first discharge voltage and a clock pulse having a low-level voltage with a level substantially equal to the first discharge voltage, and supplying the carry pulse to at least one of an upstream stage and a downstream stage, a scan output unit for generating a scan pulse, based on a second discharge voltage having a higher voltage value than the first discharge voltage and the clock pulse, and supplying the scan pulse to a corresponding gate line, and a node controller for controlling voltages at nodes connected to the carry output unit and the scan output unit.
    Type: Application
    Filed: June 26, 2014
    Publication date: January 1, 2015
    Inventor: Sung-Hak Jo
  • Publication number: 20150002505
    Abstract: Described herein are apparatus, system, and method for controlling temperature drift and/or voltage supply drift in a digital phase locked loop (DPLL). The apparatus comprises a DPLL including a digital filter to generate a fine code for controlling a frequency of an output signal of a digital controlled oscillator (DCO) of the DPLL; a logic unit to monitor the fine code and to generate a compensation signal based on the fine code; and a voltage adjustment unit to update a power supply level to the DCO based on the compensation signal, wherein the updated power supply level to cause the digital filter to generate the fine code near the middle of an entire range of the fine code across various temperatures, and wherein the digital filter to generate the fine code near the middle of the entire range across power supply drift.
    Type: Application
    Filed: September 15, 2014
    Publication date: January 1, 2015
    Inventor: Martin VANDEPAS
  • Publication number: 20140375624
    Abstract: According to an embodiment, an image processing device is operable by switching an operation mode among a first mode and a second mode. In the first mode, a first synchronization signal and a first image signal are inputted. The first synchronization signal comprising pulses having a first cycle, and the first image signal is composed of a plurality of frames switching in synchronization with the pulses of the first synchronization signal. In the second mode, an input of the first synchronization signal and the first image signal is stopped and a second image signal written to a frame memory is read.
    Type: Application
    Filed: December 11, 2013
    Publication date: December 25, 2014
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventor: Takashi Kanoh
  • Publication number: 20140375703
    Abstract: A display panel driving apparatus includes an image pattern analyzing part, a clock signal generating part and a data driving part. The image pattern analyzing part is configured to analyze an image pattern of an image data. The clock signal generating part is configured to generating a clock signal having a different pulse width according to the image pattern of an image data. The data driving part is configured to drive a data line of a display panel in response to the clock signal. Thus, power consumption and heating of the data driving part may be decreased.
    Type: Application
    Filed: May 23, 2014
    Publication date: December 25, 2014
    Applicant: Samsung Display Co., LTD.
    Inventors: Young-Il BAN, Sun-Koo KANG, Seung-Hwan MOON, Sun-Kyu SON, Kyung-Ha KIM, Jae-Han LEE
  • Publication number: 20140375625
    Abstract: A display device includes display panel includes a first source driver including a first input terminal and a first output terminal connected to the display panel; a first gate driver including a first input-output terminal, a second input-output terminal connected to the first input-output terminal, and a second output terminal connected to the display panel; a timing controller including a first terminal for outputting or inputting a first signal to or from the first input-output terminal and a second terminal; a first signal line connected to the first terminal; a second signal line connected to the second terminal; and a third signal line connected to the first source driver and the timing controller for transmitting a second signal indicating a display direction of the image data. The first source driver operates according to the first signal from the first terminal or the second terminal selected.
    Type: Application
    Filed: June 9, 2014
    Publication date: December 25, 2014
    Inventors: Yukinobu WATANABE, Yuichi MATSUSHITA
  • Patent number: 8917266
    Abstract: A timing controller that includes a noise detection circuit and a setting control unit. The noise detection circuit includes a detection unit and a reset signal generating unit. The detection unit outputs a detection signal having a first logic level based on at least one of a plurality of reference data toggling asynchronous with a clock signal. The reset signal generating unit outputs a reset signal having a second logic level based on the detection signal. The setting control unit stores setting data and initializes the setting data in response to the reset signal having the first logic level, and the setting data are used to process red, green and blue (RGB) image data.
    Type: Grant
    Filed: April 4, 2012
    Date of Patent: December 23, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong-Yun Park, Jong-Seon Kim, Ki-Joon Kim, Min-Hwa Jang
  • Publication number: 20140368559
    Abstract: A liquid crystal display device includes: a first image signal generating unit for acquiring an image signal and for generating a first image signal in which at least a part of the pixel drive values are reduced; a second image signal generating unit for acquiring the image signal and for generating a second image signal in which at least a part of the pixel drive values are increased; a display signal selection unit for selecting one of the first image signal and the second image signal as a display signal; and a polarity control unit for controlling a polarity of the display signal. The polarity control unit inverts the polarity of the display signal. The display signal selection unit selects the first image signal in a frame immediately before the inversion and selects the second image signal in a frame immediately after the inversion.
    Type: Application
    Filed: February 20, 2014
    Publication date: December 18, 2014
    Applicant: Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Sachiko YAMAZAKI, Yoshihisa OOISHI
  • Patent number: 8913045
    Abstract: A gate drive circuit for a display device is disclosed, by which output states of scan pulses are identically maintained in a manner of minimizing load deviation between connecting units. The present disclosure includes at least two clock transmission lines transmitting at least two clock pulses having a phase difference in-between, a shift register outputting scan pulses sequentially based on the clock pulses transmitted from the clock transmission lines, and a plurality of connecting units connecting the clock transmission lines to the shift register, respectively, wherein at least one of the connecting units is zigzagged in part, the at least one connecting unit comprising: a pad connected to the corresponding clock transmission line via a pad connecting unit; a zigzagged line connected to one side of the pad; and a connecting line that has one side connected to the zigzagged line and the other side connected to the shift register.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: December 16, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Mi-Young Son, Hong-Jae Shin
  • Publication number: 20140362073
    Abstract: Aspects of the present invention relate to a display device, a timing controller, and an image display method. When a frame of an input image signal including an odd-field signal and an even-field signal is received, a timing controller outputs a gate scanning clock (GCK) signal and an output enable (OE) signal in an interlaced scanning manner, to separately scan the odd-field image and the even-field image in the interlaced scanning manner in real time. The interlaced scanning manner is used for the interlaced signal, thereby saving a storage equipped in a converter.
    Type: Application
    Filed: December 31, 2013
    Publication date: December 11, 2014
    Applicants: HISENSE USA CORPORATION, HISENSE HIVIEW TECH CO., LTD
    Inventor: Shunming Huang
  • Patent number: 8907937
    Abstract: A display apparatus for displaying the state of an external device and a method thereof are provided. According to the present invention, messages indicating the connection state, the power state and the sleep mode of the external device are displayed on a screen of the display apparatus to which a USB is applied. Therefore, the state of an external device which inputs a video signal to the display apparatus, may be shown on the screen, and thus a user can easily know the state of the external device.
    Type: Grant
    Filed: January 17, 2008
    Date of Patent: December 9, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Young-kyan Yun
  • Patent number: 8907933
    Abstract: A display system includes: an image output apparatus and an image display apparatus, wherein the image output apparatus has: a display image generating unit which generates a display image which is an image which the image display apparatus is caused to display; a control image generating unit which generates a control image which is an image including control information for controlling the image display apparatus; and an image output unit which outputs the display image and control image to the image display apparatus, and the image display apparatus has: a display unit which displays the input display image; a control information acquisition unit which acquires the control information included in the input control image; and a drive control unit which, based on the acquired control information, controls a drive of the image display apparatus.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: December 9, 2014
    Assignee: Seiko Epson Corporation
    Inventor: Hiroyuki Ichieda
  • Patent number: 8907735
    Abstract: A PWM circuit that can have two refresh rates, including: a first PWM signal generator and a second PWM signal generator; wherein the first PWM signal generator and the second PWM signal generator respectively control refresh rates in two dimensions of an output data generated from a target apparatus. A PWM signal generation method that can have two refresh rates, including: generating a first PWM signal; generating a second PWM signal; and controlling refresh rates in different dimensions of an output data generated from a target apparatus respectively by using the first PWM signal and the second PWM signal.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: December 9, 2014
    Assignee: Silicon Touch Technology Inc.
    Inventors: Chi-Yuan Chin, Kuei-Jyun Chen
  • Patent number: 8902144
    Abstract: It is an object to decrease the number of transistors connected to a capacitor. In a structure, a capacitor and one transistor are included, one electrode of the capacitor is connected to a wiring, and the other electrode of the capacitor is connected to a gate of the transistor. Since a clock signal is input to the wiring, the clock signal is input to the gate of the transistor through the capacitor. Then, on/off of the transistor is controlled by a signal which synchronizes with the clock signal, so that a period when the transistor is on and a period when the transistor is off are repeated. In this manner, deterioration of the transistor can be suppressed.
    Type: Grant
    Filed: November 9, 2009
    Date of Patent: December 2, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Atsushi Umezaki
  • Patent number: 8902214
    Abstract: A voltage generator includes a boosting circuit boosting a power voltage to generate first through fourth voltages, and a boosting controller controlling the boosting circuit. The boosting controller sets the third and fourth voltages to a voltage level lower than that of a ground voltage while the first and second voltages are generated, so that a plurality of voltages may be stably generated, i.e., without latch-up.
    Type: Grant
    Filed: July 13, 2007
    Date of Patent: December 2, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-Ho Park, Won-Sik Kang
  • Publication number: 20140347349
    Abstract: In one embodiment, a display panel includes a substrate and a gate driver disposed on the substrate. The gate driver comprises a wiring unit which receives signals and a circuit unit which outputs driving signals in response to the signals received from the wiring unit. The circuit unit comprises a shift register and a shift register wiring connected to the shift register. The wiring unit comprises first through n-th signal lines (n is a natural number greater than two) arranged sequentially adjacent to the shift register. The first line is located farthest from the shift register and the n-th signal line is closest from the shift register. Further, the first signal line is electrically connected to the shift register by a first connection line that comprises a first contact portion connected to the first signal line and a second contact portion connected to the shift resistor wiring.
    Type: Application
    Filed: August 13, 2014
    Publication date: November 27, 2014
    Inventors: Kwi-Hyun KIM, Jang-Soo KIM, Hyeong-Jun JIN, Soo-Chul KIM, Kyoung-Hae MIN
  • Publication number: 20140347344
    Abstract: A display device includes gate lines which transmits a plurality of gate signals, data lines which transmits a plurality of data signals, and pixels connected to the gate lines and the data lines; a signal controller which generates image data, a data control signal and a gate control signal based on an input video signal and an input control signal; a timing setter including connection pads connected to a voltage of a first level or a voltage of a second level; and a gate driver which generates timing information based on tuning signals transmitted from the timing setter through the connection pads and generates gate signals using the gate control signal and the timing information, where the gate control signal includes a scan start reference signal, which instructs a scan start, and a clock control reference signal, which controls each pulse width of the gate signal.
    Type: Application
    Filed: November 18, 2013
    Publication date: November 27, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Won-Jun LEE, In-Soo WANG, Gi-Chang LEE
  • Publication number: 20140347348
    Abstract: Each of image-signal-line drive circuits includes a timing controller that generates a control signal controlling itself and other image-signal-line drive circuit, and a master/slave selection circuit that sets itself as a master mode image-signal-line drive circuit or a slave mode image-signal-line drive circuit based on a selection signal to be given from outside. From among the plurality of image-signal-line drive circuits, the master mode image-signal-line drive circuit gives the control signal to the slave mode image-signal-line drive circuit.
    Type: Application
    Filed: May 2, 2014
    Publication date: November 27, 2014
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Yukio IJIMA
  • Publication number: 20140347347
    Abstract: A pixel includes an organic light emitting diode and a pixel control circuit. The pixel control circuit includes a first transistor, a second transistor, and a third transistor. The first transistor controls an amount of current to the organic light emitting diode from a first power source based on a voltage applied to a first node. The second transistor is coupled between the first node and a data line and turns on when a scan signal is supplied to a scan line. The third transistor is coupled between the first power source and a second node that is a common terminal of first and second capacitors, which are coupled in series between the first node and the first power source. In operation, the third transistor turns on when a first control signal is supplied to a first control line.
    Type: Application
    Filed: March 31, 2014
    Publication date: November 27, 2014
    Applicants: Industry-University Cooperation Foundation Hanyang University, Samsung Display Co., Ltd.
    Inventors: Jin-Tae JEONG, Oh-Kyong KWON
  • Publication number: 20140347345
    Abstract: According to one embodiment, a circuit includes: a synchronous driver configured to generate a control signal in synchronization with an output pulse of an AC/DC converter; and an LED current controller configured to start to control a current of an LED in response to the control signal, and configured to output a stop signal for stopping the control signal when a predetermined LED current is detected; wherein the synchronous driver is caused to stop the control signal by the stop signal.
    Type: Application
    Filed: January 9, 2014
    Publication date: November 27, 2014
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventor: Yoshiaki Yoshizawa
  • Publication number: 20140347346
    Abstract: A display driver integrated circuit includes a gate driving unit configured to control voltages of a plurality of gate lines connected to a display panel, a voltage boosting unit configured to supply a gate voltage to the gate driving unit, and a control logic, unit configured to receive data, a horizontal synchronization signal, and a vertical synchronization signal, generate a gate control signal based on the data, the horizontal synchronization signal, and the vertical synchronization signal, and transfer the gate control signal to the gate driving unit and the voltage boosting unit. The voltage boosting unit adjusts a level of the gate voltage based on the gate control signal.
    Type: Application
    Filed: February 25, 2014
    Publication date: November 27, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang-Won HAN, Jaehyuck Woo, Byunghun Han
  • Publication number: 20140347340
    Abstract: A system performs a method for detecting display driver error. The method includes sending a first command signal to a display driver to operate according to a first operating state that includes the display driver sending a synchronization signal, and monitoring for the synchronization signal during a first time period after sending the first command signal. The method further includes sending a second command signal to the display driver to operate according to a second operating state that includes the display driver withholding sending the synchronization signal, and monitoring for the synchronization signal during a second time period after sending the second command signal. In addition, the method includes detecting a display driver error based on results of the monitoring during at least one of the first or the second time periods.
    Type: Application
    Filed: November 8, 2013
    Publication date: November 27, 2014
    Applicant: MOTOROLA MOBILITY LLC
    Inventors: Lighten Tse, JOHN J. GORSICA
  • Patent number: 8896590
    Abstract: In one embodiment of the present invention, a display controller includes a stable pixel writing period in one horizontal period in a display device, the stable pixel writing period being a period during which a voltage outputted from a gate driver is at a high level. The display controller also includes a first stable pixel writing period determination circuit which determines, by using a reference signal independent from the frame rate in the display device, the stable pixel writing period during which the voltage is at the high level. Thus, the display controller can be provided in which, regardless of whether and how the frame rate is changed, the stable pixel writing period can be of a target length.
    Type: Grant
    Filed: June 8, 2007
    Date of Patent: November 25, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshihiro Yanagi, Takuji Miyamoto, Atsuhito Murai
  • Patent number: 8896591
    Abstract: A pixel circuit includes a first sub-pixel and a second sub-pixel. The first sub-pixel is coupled to a scan line and a data line, so as to determine whether to be enabled according to a first scan signal transmitted on the scan line, and whether to be driven according to a data signal transmitted on the data line. The second sub-pixel is coupled to the scan line, so as to determine whether to be enabled according to the first scan signal. The data signal is in a first state when the first scan signal is in a pre-charged period. The data signal is in a second state during a time interval after the pre-charged period is over and before the first scan signal enters a turn-on period. Voltage polarities of the first state and the second state are opposite. The pixel design can improve color shift and frame flicker.
    Type: Grant
    Filed: May 5, 2014
    Date of Patent: November 25, 2014
    Assignee: Au Optronics Corporation
    Inventors: Chih-Yuan Chien, Chien-Hua Chen, Chen-Kuo Yang, Hsueh-Ying Huang
  • Patent number: 8896585
    Abstract: A display device includes a display unit including a plurality of scan lines, a plurality of data lines to which a plurality of compensation data signals are transmitted, a plurality of light emitting signal lines, and a plurality of pixels respectively connected to the plurality of scan lines, the plurality of data lines, and the plurality of light emitting signal lines, and a data driver generating a data voltage corresponding to a image data signal, and converting the data voltage to the compensation data signal. The data driver includes a compensator generating the compensation data signal in accordance with a feedback voltage. The feedback voltage is determined by a degree of deterioration associated with each pixel, and increases with an increasing deterioration degree of the pixel.
    Type: Grant
    Filed: February 16, 2011
    Date of Patent: November 25, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Myoung-Hwan Yoo, Choon-Yul Oh
  • Patent number: 8896705
    Abstract: A measuring device for measuring a response speed of a display panel is provided. The measuring device includes a microcontroller and at least one photo sensor. The microcontroller provides a control command, according to which a display controller of the display panel provides test pattern to the display panel. The photo sensor senses a test frame displayed corresponding to the test pattern by the display panel, and provides a corresponding sensing signal associated with brightness and a response signal. According to the response signal, the response speed of the display panel is calculated.
    Type: Grant
    Filed: August 21, 2012
    Date of Patent: November 25, 2014
    Assignee: MStar Semiconductor, Inc.
    Inventors: Chih-Chiang Chiu, Tien-Hua Yu, Wen-Cheng Wu
  • Publication number: 20140340387
    Abstract: A scan driver includes stages dependently connected to each other, where each of the stages outputs a gate signal, where a first scanning start signal is input to a first stage of the stages, where a second scanning start signal is input to a last stage of the stages, where each of the first scanning start signal and the second scanning start signal has one pulse per frame, where the stages sequentially output a gate-on voltage between a time when a pulse of the first scanning start signal for a frame is input to the first stage and a time when a pulse of the second scanning start signal for the frame is input to the last stage, and where the stages output a first low voltage lower than the gate-on voltage after the pulse of the second scanning start signal for the frame is input to the last stage.
    Type: Application
    Filed: August 5, 2014
    Publication date: November 20, 2014
    Inventors: Jun-Yong SONG, Jae Hoon LEE
  • Publication number: 20140340386
    Abstract: Provided are a display device and a method for driving the same. The display device includes: a plurality of display modules; a plurality of display module drivers for respectively driving the display modules; a data divider receiving data signals for displaying an image on the display device and separating the received data signals into output data signals corresponding to each respective display module driver; and a timing control signal generator for generating a timing control signal to be supplied commonly to the display module drivers.
    Type: Application
    Filed: July 30, 2014
    Publication date: November 20, 2014
    Inventors: Seong Gyun KIM, Hee Jung HONG, Nam Yong Gong
  • Patent number: 8890434
    Abstract: To control multiple electronic circuits organized in a series configuration, this document introduces a single-wire power, control, and feedback system. Specifically, individually controlled electronic circuits are arranged in a series configuration that is driven by a control unit located at the head of the series. The head-end control unit provides both electrical power and control signals down a single wire to drive all of the electronic circuits in the series in a manner that allows each electronic circuit to periodically draw power from the single wire and receive control information. Each electronic circuit in the series may communicate back to the head-end control unit by drawing power or not during a specified time slot.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: November 18, 2014
    Assignee: Neofocal Systems, Inc.
    Inventors: Tsutomu Shimomura, Mark Peting, Dale Beyer
  • Patent number: 8890899
    Abstract: A monochrome light emitting display device and a method for fabricating the same are disclosed, in which a pixel structure of a monochrome light emitting display device is changed to improve a contrast ratio and resolution and at the same time color shift is prevented from occurring, so as to display clearer image. The monochrome light emitting display device comprises a display panel having unit pixels of first and second sub-pixels arranged in a matrix arrangement to display a monochrome image; gate and data drivers respectively driving gate lines and data lines of the display panel; and a timing controller aligning externally input RGB data to be suitable for driving of the display panel to supply the RGB data to the data driver and generating data and gate control signals to control the data and gate drivers.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: November 18, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Se-Hee Lee, Byung-Chul Ahn, Seung-Kyu Choi, Nam-Yang Lee, Seok-Jong Lee
  • Patent number: 8890860
    Abstract: The present invention relates to an EL display device in which a stereoscopic image is perceived and eyeglasses having a switching means with which an image for a left eye or an image for a right eye is selectively perceived. The image for the left eye and the image for the right eye are displayed in a display portion of the EL display device by holding an image signal from a signal line in a first capacitor in a first period, holding the image signal held in the first capacitor in a second capacitor to control current that flows through an emission-control transistor in a second period, and turning on a driving transistor to control light emission of a light-emitting element and holding an image signal from a signal line in the first capacitor in a third period.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: November 18, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Jun Koyama
  • Publication number: 20140333607
    Abstract: An electro-optic device includes an electro-optical panel and a polarization axis conversion unit that emits transmission lights corresponding to a first image or a second image with the polarization axis of the first image intersecting the polarization axis of the second image, by converting the polarization axis of the lights emitted from the electro-optical panel. The electro-optic device further includes a scanning signal supply unit supplying scanning signals through the plurality of scanning lines and an image signal supply unit supplying a first image signal corresponding to a first image to the plurality of pixel sections during a first field period and supplying a second image signal corresponding to a second image to the plurality of pixel sections during a second field period through the plurality of data lines, the first field period and the second field period being divided into a plurality of subfield periods respectively.
    Type: Application
    Filed: July 23, 2014
    Publication date: November 13, 2014
    Inventor: Akihiko ITO
  • Publication number: 20140333606
    Abstract: A driver for use in a liquid crystal display (LCD) includes a signal generator for supplying direct current (DC) voltage and control signal, the control signal comprising 3D enabling signal, a timing controlling module coupled to the signal generator, for receiving the 3D enabling signal, and a DC/DC converter coupled to the signal generator, for outputting vertical synchronous signal to a gate driver to drive a pixel array of the LCD upon receiving 3D enabling signal. The present invention also proposes a driving method for driving an LCD and related LCD. The present invention proposes a simplified circuit design and reduce cost.
    Type: Application
    Filed: June 26, 2013
    Publication date: November 13, 2014
    Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventor: Dongguang Wu
  • Patent number: 8884945
    Abstract: A gaming system is disclosed for presenting both game content and secondary content on a single display. The gaming system includes: a touch screen game display configured to display content, a gaming controller configured to generate game content, and a secondary controller configured to generate secondary content. The display manager scales at least one of the game content and the secondary content to an altered size, enabling the game content from the gaming controller to be rendered with the secondary content from the secondary controller on the touch screen game display. The gaming system also includes a coordinate transformation calculation device that receives coordinates from an input on the touch screen game display and accommodates any scaling or shifting performed on at least one of the game content and the secondary content to determine transformed coordinates corresponding to the altered size of the rendered content.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: November 11, 2014
    Assignee: Bally Gaming, Inc.
    Inventors: Bryan M. Kelly, Stephen Patton, Kiran Brahmandam, Robert W. Crowder, Jr., Vijay Kompella, Jeffrey Lee Allen
  • Patent number: 8878904
    Abstract: A system, method, and computer program product are provided for enhancing a viewing experience when display content is viewed utilizing stereo glasses. In use, display content is received for being outputted utilizing a display. Further, a duration of a vertical blanking interval associated with the display content is increased for enhancing a viewing experience when the display content is viewed utilizing the stereo glasses.
    Type: Grant
    Filed: December 5, 2011
    Date of Patent: November 4, 2014
    Assignee: NVIDIA Corporation
    Inventors: Gerrit A. Slavenburg, Thomas F. Fox, David Robert Cook
  • Publication number: 20140320480
    Abstract: In at least one embodiment, an electro-optical device displays a right-eye image and a left-eye image for each display period. The driving circuit supplies a gradation potential to each of the pixels according to a specific gradation using image data which corresponds to the unit period in each of a plurality of unit periods in each of the display periods, and sequentially selects one or more scanning lines in a plurality of lines and supplies a gradation potential to each of the signal lines according to a specific gradation of each of the pixels which corresponds to the one or more scanning lines in a selected state in a unit period in each of the display periods. A driving control section executes overdrive of each of the pixels in the driving circuit in a first unit period in each of the display periods.
    Type: Application
    Filed: July 7, 2014
    Publication date: October 30, 2014
    Inventors: Toshiaki Tokumura, Akihiko Ito
  • Publication number: 20140313175
    Abstract: A module circuit (11) comprises a sensor terminal (43) for feeding a sensor signal (SP) and a clock terminal (41) for feeding a pulse width-modulated clock signal (ST) having a first and a second clock phase (A, B). A signal processing circuit (40) of the module circuit (11) is coupled on the input side to the sensor terminal (43) and the clock terminal (41) and is designed to provide an output signal (SAL) dependent on the sensor signal (SP) that can be tapped in the first clock phase (A) and independent of the sensor signal (SP) that can be tapped in the second clock phase (B).
    Type: Application
    Filed: November 7, 2012
    Publication date: October 23, 2014
    Inventor: Peter Trattler
  • Publication number: 20140306948
    Abstract: Provided are: a liquid crystal display device capable of rapidly removing residual electric charges in a panel when a power supply is turned off, and in particular, suitable for a case where IGZO-GDM is adopted; and a driving method of the liquid crystal display device. In the liquid crystal display device, when an OFF state of the power supply is detected, a power supply OFF sequence including an initialization step, a first discharge step and a second discharge step is executed. In the initialization step, only a clear signal (H_CLR) among GDM signals is set at a high level, and a state of each of bistable circuits which constitute a shift register is initialized. In the first discharge step, only the clear signal (H_CLR) among the GDM signals is set at a low level, all of gate bus lines are turned to a selected state, and electric charges in pixel formation portions are discharged.
    Type: Application
    Filed: August 9, 2012
    Publication date: October 16, 2014
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Akihisa Iwamoto, Hideki Morii, Takayuki Mizunaga, Kazuya Nakaminami, Satoshi Horiuchi
  • Patent number: 8860707
    Abstract: Systems and methods provide automatic switching of display update properties such as screen resolution, pixel depth, and refresh rate in response to a power management event. The display update property may be decreased when power is switched from AC power to DC power, for example, when the system is unplugged from a wall outlet and is running on battery power.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: October 14, 2014
    Assignee: Intel Corporation
    Inventors: Terry M. Fletcher, Edward Costales
  • Patent number: 8860711
    Abstract: A timing controller and a Liquid Crystal Display (LCD) using the same are discussed. The timing controller according to an embodiment includes a reception unit which receives a video signal and a timing signal from a system; a control signal generation unit which generates a gate control signal and a data control signal with the timing signal, and outputs the gate control signal and the data control signal to a gate driver and a data driver, respectively; an image signal generation unit which realigns the video signal to output a realigned image signal; and a delay compensation unit which performs delay compensation for the realigned image signal with a circuit recombined according to a delay compensation value between each data drive Integrated Chip (IC) of the data driver and the image signal generation unit, and outputs the delay-compensated image signal to each data drive IC.
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: October 14, 2014
    Assignee: LG Display Co., Ltd.
    Inventor: Hyoung Sik Kim
  • Patent number: 8854542
    Abstract: Methods and systems for implementing video driving circuitry are disclosed. For example, in an embodiment, a system for driving a plurality of different types of video devices is disclosed. The system includes, for example, a System on a Chip (SoC) that itself includes a Liquid Crystal Display (LCD) controller circuit configured to generate digital video data, a first synchronization signal for controlling a first characteristic of the digital video data, and a second synchronization signal for controlling a second characteristic of the digital video data. The SoC further includes a delay circuit configured to variably delay the first synchronization signal and the second synchronization signal relative to the digital video data to generate a delayed first synchronization signal and a delayed second synchronization signal.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: October 7, 2014
    Assignee: Marvell Israel (M.I.S.L) Ltd.
    Inventors: Dan Ilan, Guy Nakibly, Eilon Argov
  • Patent number: 8854354
    Abstract: A power supply circuit of a liquid crystal display device includes a first positive polarity charge charging unit including a first capacitor connected to positive and negative power terminals through switches to charge a charge, a second positive polarity charge charging unit including a second capacitor connected to the positive power terminal and a ground terminal through switches to charge a charge, a first positive polarity charge loading unit loading the charge supplied through the positive power terminal to a negative polarity terminal, a second positive polarity charge loading unit loading the charge charged in the first capacitor to a negative polarity terminal, a third positive polarity charge loading unit loading the charge charged in the second capacitor, and a positive polarity charge charging/loading control unit outputting charging control signals with a same phase to the switches, and periodically or irregularly changing durations of the charging and loading control signals.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: October 7, 2014
    Assignee: Silicon Works Co., Ltd.
    Inventors: Yong Sung Ahn, Jung Min Choi, Sang Rok Cha, Dae Keun Han, Hyung Seog Oh, Yong Suk Kim
  • Publication number: 20140292745
    Abstract: A display apparatus includes pixels arranged in a two-dimensional matrix pattern, each of which including a light-emitting unit and a drive circuit that drives the unit and includes a comparator circuit that compares a control pulse with potential based on signal voltage and outputs predetermined voltage based on the result, a transistor driving the unit in response to the predetermined voltage, and a current source that supplies current to the unit during driving of the transistor, includes a current-source transistor, a capacity unit connected to a gate electrode of the current-source transistor, a differential amplifier that detects a differential between voltage based on reference constant current and reference voltage, and a transistor controlling the voltage based on reference constant current depending on current flowing through the current-source transistor, and controls gate potential of the current-source transistor on the basis of output of the amplifier in synchronization with a scanning signal.
    Type: Application
    Filed: March 25, 2014
    Publication date: October 2, 2014
    Applicant: Sony Corporation
    Inventors: Ken Kikuchi, Takaaki Sugiyama, Takehiro Misonou, Genichiro Oga, Takahiro Kita
  • Patent number: RE45305
    Abstract: A monitor control system capable of reprogramming the function of a LCD monitor. The monitor control system utilizes VGA signal lines for video signal transmission during normal mode of operation and the same VGA signal lines for transmitting erase/record commands and data when the erasable programmable ROM inside the monitor demands reprogramming. Using an isolator circuit in the monitor control system for isolating an erase/record pathway of an erasable programmable ROM from a normal video pathway, data within the erasable programmable ROM can be modified without opening up the monitor casing. Hence, the modification of monitor function is much more convenient.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: December 30, 2014
    Assignee: Novatek Microelectronics Corp.
    Inventor: Te-Hsiu Tsai