Synchronizing Means Patents (Class 345/213)
  • Patent number: 10109250
    Abstract: There are presented a shift register and a driving method thereof, a gate driving circuit and a display apparatus. The shift register includes a first feedback module and a pull-down module, wherein the first feedback module comprises at least two feedback units, control terminals of respective feedback units are connected to different control points respectively, each feedback unit has an input terminal connected to a first level input terminal and an output terminal connected to a first node, the first node is connected to a control terminal of the pull-down module, and the pull-down module has an input terminal connected to the first level input terminal and an output terminal connected to a signal output terminal of the shift register. The shift register is used to enhance noise resistance capability of the shift register.
    Type: Grant
    Filed: May 3, 2016
    Date of Patent: October 23, 2018
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.
    Inventor: Jiguo Wang
  • Patent number: 10110928
    Abstract: A video processing apparatus and a video processing circuit of the video processing apparatus are provided. The video processing circuit includes a video processor, a first memory controller, a second memory controller and a distributor. The video processor includes at least one sub-processing-tasks processor which is configured to execute one or more sub-processing tasks respectively. The first memory controller controls a first memory. The second memory controller controls a second memory. The distributor stores the data outputted by the video processor to the first memory and the second memory through the first memory controller and the second memory controller respectively.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: October 23, 2018
    Assignee: Novatek Microelectronics Corp.
    Inventors: Yu-Wei Chang, Po-Chin Hu
  • Patent number: 10096293
    Abstract: The present invention proposes a gate driver including a plurality of gate driver on array (GOA) units. Each of the GOA unit includes a main driving circuit, a starting signal output circuit, and a plurality of gate driving circuits. The gate driver utilizes a starting signal and two inversed clock signals to control the charging period and the discharging period of the gate driver. Furthermore, the gate driver utilizes multiple clock signals to control the output of the gate driving signals. In this way, the number of the clock signals is reduced and thus the power consumption is also reduced.
    Type: Grant
    Filed: January 11, 2016
    Date of Patent: October 9, 2018
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Peng Du
  • Patent number: 10089912
    Abstract: A display panel includes a first substrate, and at least one data driver integrated circuit. The data driver integrated circuit is electrically connected to the first substrate, wherein the data driver integrated circuit receives a first set signal and a second set signal, the first set signal includes a first data transmission interface, the second set signal includes a second data transmission interface, and the first data transmission interface and the second data transmission interface are different.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: October 2, 2018
    Assignee: INNOLUX CORPORATION
    Inventors: Yung-Yu Tsai, Chia-Liang Lin
  • Patent number: 10078235
    Abstract: A pure color screen inspection method for a display panel is provided. The method includes selecting the sub-pixels of an undetected color; turning on the gate electrodes of odd row using a first scan line; providing a data signal to the sub-pixels of odd row using a corresponding data line; turning on the gate electrodes of even row using a second scan line; providing a data signal to the sub-pixels of even row using a corresponding data line; and repeating above steps. The beneficial effects of the method are that a display panel can be lighted up with a pure color screen without mixed colors via a printed circuit board.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: September 18, 2018
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventor: Mian Zeng
  • Patent number: 10070018
    Abstract: A display driver for a display device including a sync extraction circuit configured to generate a vertical sync source signal in response to a vertical sync period start instruction indicating a start of a vertical sync period, a timing generator configured to generate an internal vertical sync signal in response to the vertical sync source signal; and a drive circuit configured to drive the display panel in synchronization with the internal vertical sync signal.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: September 4, 2018
    Assignee: Synaptics Japan GK
    Inventor: Tsuyoshi Kuroiwa
  • Patent number: 9997125
    Abstract: A GOA circuit and a liquid crystal device (LCD) are disclosed. The GOA circuit includes a plurality of GOA units and a control module. Each of the cascaded GOA units is configured for charging corresponding horizontal scanning lines within a display area when being driven by a first level clock, a second level clock, a first control clock, and a second control clock. After the horizontal scanning lines are fully charged by the GOA circuit, the control module is configured for resetting the gate driving signals to be at the first level, i.e., the invalid level, via the turn-on pulse signals and the negative-voltage constant-voltage source.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: June 12, 2018
    Assignees: Shenzhen China Star Optoelectronics Technology Co., Ltd., Wuhan China Star Optoelectronics Technology Co., Ltd.
    Inventors: Juncheng Xiao, Mang Zhao
  • Patent number: 9997124
    Abstract: A GOA circuit and a liquid crystal device (LCD) are disclosed. The GOA circuit includes a plurality of GOA units and a control module. Each of the cascaded GOA units is configured for charging corresponding horizontal scanning lines within a display area when being driven by a first level clock, a second level clock, a first control clock, and a second control clock. After the horizontal scanning lines are fully charged by the GOA circuit, the control module is configured for resetting the gate driving signals to be at the first level, i.e., the invalid level, via the turn-on pulse signals and the negative-voltage constant-voltage source.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: June 12, 2018
    Assignees: Shenzhen China Star Optoelectronics Technology Co., Ltd., Wuhan China Star Optoelectronics Technology Co., Ltd.
    Inventors: Juncheng Xiao, Mang Zhao
  • Patent number: 9992445
    Abstract: Presently disclosed are systems and method for identifying a video aspect-ratio frame attribute of a current frame. One example embodiment takes the form of a frame-processing device including a processor and a non-transitory computer-readable medium containing instructions that, when executed by the processor, cause a set of steps to be carried out, the set of steps including: (i) receiving a frame of video from a video source device; (ii) defining a region of the received frame, wherein the region is associated with a plurality of pixels of the received frame; (iii) using a plurality of luma values associated with the plurality of pixels as a basis to identify the received frame as having a particular video aspect-ratio attribute; and (iv) storing in a memory an indication that the received frame has the identified particular video aspect-ratio frame attribute.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: June 5, 2018
    Assignee: Tribune Broadcasting Company, LLC
    Inventors: Hank J. Hundemer, Dana A. Lasher
  • Patent number: 9984664
    Abstract: Briefly, methods and apparatus provide image content to, and display image content on, displays with a variable refresh rate that reduce frame delays and avoid display image flickering problems. In one example, the methods and apparatus are operative to vary a display's refresh rate by varying a current frame's vertical blanking period by re-providing the current frame for display prior to providing a new frame for display. In this fashion, the displaying of a new frame may be advanced by assuring that a new frame can be provided for display as soon as it has been rendered and available for display. In addition, by re-providing the current frame for display prior to providing a new frame for display, new frames may be provided for display at rates within a safe rate range such that display image flickering issues are avoided or reduced.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: May 29, 2018
    Assignee: ATI Technologies ULC
    Inventors: David I. J. Glen, Syed A. Hussain
  • Patent number: 9972283
    Abstract: The present disclosure relates to scanning driving circuit and flat display device. A pull-up maintaining module receives clock signals at the previous level, to charge a pull-up control signal node and pull up a pull-down control signal node; a control module receives pull-up control signals at the previous level and scanning driving signals at the previous level, and control the pull-up maintaining module; an output module connects to the pull-up maintaining module and the control module for outputting the scanning driving signals to scanning lines; the scanning lines transmits the scanning driving signals to pixel cells.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: May 15, 2018
    Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd
    Inventor: Mang Zhao
  • Patent number: 9971039
    Abstract: A method of operating a digital radiographic detector having an array of imaging pixels, wherein a predetermined gate voltage is applied to the transistor gates in the array in a dark environment. The preselected gate voltage is maintained for a predetermined duration to increase a threshold voltage of the transistor.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: May 15, 2018
    Assignee: Carestream Health, Inc.
    Inventor: Ravi K. Mruthyunjaya
  • Patent number: 9972269
    Abstract: A GOA circuit and a liquid crystal device (LCD) are disclosed. The GOA circuit includes a plurality of GOA units and a control module. Each of the cascaded GOA units is configured for charging corresponding horizontal scanning lines within a display area when being driven by a first level clock, a second level clock, a first control clock, and a second control clock. After the horizontal scanning lines are fully charged by the GOA circuit, the control module is configured for resetting the gate driving signals to be at the first level, i.e., the invalid level, via the turn-on pulse signals and the negative-voltage constant-voltage source.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: May 15, 2018
    Assignees: Shenzhen China Star Optoelectronics Technology Co., Ltd., Wuhan China Star Optoelectronics Technology Co., Ltd.
    Inventors: Juncheng Xiao, Mang Zhao
  • Patent number: 9966028
    Abstract: A LCD and the gate driving circuit thereof are disclosed. The gate driving circuit includes a shift register circuit and a shift register circuit and a level transition circuit connected with the shift register circuit. The level transition circuit generates clock signals, selection signals, and negative voltage reference signals for the shift register circuit. The clock signals, the selection signals, and the negative voltage reference signals are configured for driving the shift register circuit. A negative voltage value of the negative voltage reference signals (VSS) is larger than the negative voltage value of one of the clock signals or the selection signals. In this way, the TFTs of the shift register circuit own better turn-off capability so as to avoid malfunction.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: May 8, 2018
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Hua Zhang
  • Patent number: 9965097
    Abstract: The present disclosure provides in some embodiments a pixel driving circuit, a display panel, a method for driving the display panel, and a display device. The pixel driving circuit includes a preset unit, a driving unit, a compensation unit, an energy storage unit, and a driving signal output unit.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: May 8, 2018
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Shengji Yang, Xue Dong, Hailin Xue, Haisheng Wang, Xiaochuan Chen, Hongjuan Liu, Tuo Sun, Lifei Ma, Yingming Liu, Weijie Zhao, Changfeng Li
  • Patent number: 9959832
    Abstract: A GOA circuit and a liquid crystal device (LCD) are disclosed. The GOA circuit includes a plurality of GOA units and a control module. Each of the cascaded GOA units is configured for charging corresponding horizontal scanning lines within a display area when being driven by a first level clock, a second level clock, a first control clock, and a second control clock. After the horizontal scanning lines are fully charged by the GOA circuit, the control module is configured for resetting the gate driving signals to be at the first level, i.e., the invalid level, via the turn-on pulse signals and the negative-voltage constant-voltage source.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: May 1, 2018
    Assignees: Shenzhen China Star Optoelectronics Technology Co., Ltd., Wuhan China Star Optoelectronics Technology Co., Ltd.
    Inventors: Juncheng Xiao, Mang Zhao
  • Patent number: 9959830
    Abstract: The present invention provides a GOA circuit, comprising a forward-backward scan control module, an output module, an output pull-down module, a node control module, a second node signal input module, a second node signal control module, a voltage stabilizing module and a second capacitor; the forward scan of the circuit is controlled with the ninth and the tenth thin film transistors, and the signal input of the second node is controlled with the first and the eleventh thin film transistors, and the mutual control of the first node and the second node are achieved with the second, the fourth and the fifth thin film transistors, and meanwhile, as the GOA circuit applies to a display of dual side drive interlaced scan structure, the GOA circuits of the two sides can respectively receive four different clock signals to reduce the loading of the signal line of the GOA circuit.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: May 1, 2018
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Juncheng Xiao, Yao Yan, Ronglei Dai, Shangcao Cao
  • Patent number: 9953611
    Abstract: The present application provides a shift register and a driving method thereof, a gate driving circuit and a display device. The shift register includes: an input module for introducing a signal of an output terminal of a previous level shift register to the pull-up node; an output module for introducing a signal of the first clock signal terminal to the output terminal; a reset module for resetting the pull-up node, the output terminal, the first pull-down node, and the second pull-down node using signals of the OFF signal terminal, the first signal terminal, and the second signal terminal; a voltage setting module for introducing a signal of the OFF signal terminal to the first pull-down node and the second pull-down node; and a holding module for introducing signals of the first signal terminal and the second signal terminal to the first pull-down node and the second pull-down node, respectively.
    Type: Grant
    Filed: February 16, 2016
    Date of Patent: April 24, 2018
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Zheng Wang
  • Patent number: 9953593
    Abstract: The present invention provides a liquid crystal display, comprising a first circuit board and a second circuit board and a source driving circuit which are electrically coupled to the first circuit board, wherein the first circuit board comprises a sequence controller, and the sequence controller provides a control signal and codes the control signal, and transmits the coded control signal from the first circuit board to the source driving circuit through the second circuit board, and the sequence controller directly outputs the uncoded control signal through the first circuit board to ensure a phase delay relationship between the uncoded control signal and a control signal outputted by the source driving circuit. The present invention further provides a control signal debugging method applied with the aforesaid liquid crystal display.
    Type: Grant
    Filed: October 15, 2015
    Date of Patent: April 24, 2018
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Yu Wu, Lei Wang
  • Patent number: 9953597
    Abstract: A driving unit of display panel includes a data driving part, a timing controlling part and a gate driving part. The data driving part is configured to receive reference image data and includes a first data driving circuit part having a first channel outputting a first reference data signal based on the reference image data and a k-th channel outputting a k-th reference data signal based on the reference image data. The timing controlling part is configured to detect a time difference between the first reference data signal and the k-th reference data signal. The gate driving part is configured to output a gate signal to each of gate lines. By delaying data signals based on the gate signal delay caused by long line load and RC delay, the present invention may improve display quality of a display device.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: April 24, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong-Hyun Yeo, Eun-Seon Kim, Yong-Bum Kim, Suk-Jin Park, Byung-Kil Jeon, Su-Hyun Jeong
  • Patent number: 9953606
    Abstract: A GOA circuit and a liquid crystal device (LCD) are disclosed. The GOA circuit includes a plurality of GOA units and a control module. Each of the cascaded GOA units is configured for charging corresponding horizontal scanning lines within a display area when being driven by a first level clock, a second level clock, a first control clock, and a second control clock. After the horizontal scanning lines are fully charged by the GOA circuit, the control module is configured for resetting the gate driving signals to be at the first level, i.e., the invalid level, via the turn-on pulse signals and the negative-voltage constant-voltage source.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: April 24, 2018
    Assignees: Shenzhen China Star Optoelectronics Technology Co., Ltd., Wuhan China Star Optoelectronics Technology Co., Ltd.
    Inventors: Juncheng Xiao, Mang Zhao
  • Patent number: 9934377
    Abstract: A device comprises a detector configured to detect an event, and a selector coupled to the detector and configured to generate a signal in response to a detection of an event by the detector. The signal is operable to select a set of input/output (I/O) parameters from among first and second stored sets of parameters. The device also includes a configuration module coupled to the selector. The configuration module is configured to output the selected set of I/O parameters.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: April 3, 2018
    Assignee: Atmel Corporation
    Inventors: Pierre Samat, Alain Vergnes, Michel Douguet
  • Patent number: 9934715
    Abstract: Disclosed is a timing controller including: a receiving unit configured to receive image data; a buffer memory configured to temporarily store and output the received image data; a timing controller circuit configured to generate a transmission clock signal; and a transmitter configured to receive the transmission clock signal and a transmission data signal, wherein the transmission data signal includes the image data output by the buffer memory, wherein the transmitter is configured to transmit a transmission signal, wherein the transmission clock signal is embedded in the transmission data signal, and wherein the transmission clock signal has a magnitude different from the transmission data signal.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: April 3, 2018
    Assignee: ANAPASS INC.
    Inventor: Yong-Jae Lee
  • Patent number: 9928794
    Abstract: A shift register according to the present invention is a shift register in which a plurality of unit circuits are connected in cascade, wherein the unit circuit includes a first output transistor whose current path is connected between an output terminal and a clock terminal to which a first clock signal is provided; a second output transistor whose current path is connected between the output terminal and a predetermined potential node; a setting device which, when a control signal is active, sets a signal level of the output terminal to a predetermined signal level; a first output control device which provides a signal level of the control signal to a control electrode of the first output transistor to turn off the first output transistor when the control signal is active; and a second output control device which turns off the second output transistor when the control signal is active.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: March 27, 2018
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hiroyuki Ohkawa, Shige Furuta, Yuhichiroh Murakami
  • Patent number: 9923042
    Abstract: An organic light-emitting diode (OLED) display is disclosed. In one aspect, the display includes a substrate and a plurality of pixels formed over the substrate. Each of the pixels comprises a first region configured to emit light and a second region configured to pass external light therethrough. The second regions of at least three adjacent ones of the pixels have different areas.
    Type: Grant
    Filed: October 28, 2014
    Date of Patent: March 20, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Joo-Sun Yoon, Ki-Wan Ahn
  • Patent number: 9916647
    Abstract: A liquid crystal display apparatus, which displays an image on the basis of an input image signal input from an outside, includes a liquid crystal display element, a processor that performs a plurality of processing to reduce disclination in the liquid crystal element with respect to the input image signal selectively or in combination so as to acquire an output image signal, and a liquid crystal driver that drives the liquid crystal display element using the output image signal.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: March 13, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Atsushi Ishii
  • Patent number: 9898993
    Abstract: The present disclosure provides method for controlling a message signal within a timing controller integrated circuit, the timing controller integrated circuit and a display panel. The method includes: receiving a low voltage differential signaling signal; decoding the low voltage differential signaling signal to obtain a transistor-transistor logic RGB data signal and a control signal, wherein the control signal comprises: a start signal, a horizontal synchronization and a vertical synchronization; processing the transistor-transistor logic RGB data signal to obtain an input RGB data; controlling a timing of the start signal before a timing of the input RGB data; and processing the input RGB data to obtain a mini-low voltage differential signaling data. Therefore, the technical scheme provided by the present disclosure has an advantage of the low cost.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: February 20, 2018
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Jingjing Wu, Zhi Xiong
  • Patent number: 9898987
    Abstract: A gate driving circuit is provided, where includes a plurality of gate driving units connected in cascade, each of the gate driving units is used to drive two scan lines arranged continuously, a gate driving signal of a first scan line and a first cascading signal are respectively transmitted by a first pull up module and a first down transmitting module, and a gate driving signal of a second scan line and a second cascading signal are respectively transmitted by a second pull up module and a second down transmitting module. By the above manner, the disclosure is capable of decreasing a component quantity of GOA circuit, thus achieving the ultra-narrow frame design.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: February 20, 2018
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventor: Chao Dai
  • Patent number: 9881587
    Abstract: Circuits for programming a circuit with decreased programming time are provided. Such circuits include a storage device such as a capacitor for storing display information and for ensuring a driving device such as a driving transistor drives a light emitting device according to the display information. The present disclosure provides driving schemes for decreasing flickering perceived while displaying video content by introducing idle phases in between in emission phases to increase the effective refresh rate of a display. Driving schemes are also disclosed for reducing the effects of cross-talk by ensuring that programming information is refreshed in a display array that utilizes a driver connected to multiple data lines via a multiplexer.
    Type: Grant
    Filed: May 26, 2012
    Date of Patent: January 30, 2018
    Assignee: Ignis Innovation Inc.
    Inventors: Gholamreza Chaji, Jackson Chi Sun Lai, Yaser Azizi, Maran Ran Ma
  • Patent number: 9881540
    Abstract: A gate driver includes first and second shift registers and a selector. The first shift register outputs first pulses. The second shift register outputs second pulses different from the first pulses. The selector selects one of the first pulses or the second pulses. When the selector selects the first pulses, the gate driver generates a first gate signal including first and second high periods, and output the first gate signal to a first gate line. The second high period is apart from the first high period by a first interval. When the selector selects the second pulses, the gate driver generates a second gate signal including the first high period and a third high period, and output the second gate signal to the first gate line. The third high period is apart from the first high period by a second interval different from the first interval.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: January 30, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyoung-Rae Lee, Moon-Ju Kim, Eun-Suk Kim, Seok-Kun Yoon, Kwang-Youl Lee, Young-Min Choi, Jong-Won Choo
  • Patent number: 9875676
    Abstract: A display device according to one or more embodiments of the present disclosure includes a plurality of pixels located at crossing regions of a plurality of scan lines and a plurality of data lines; a data driver coupled to ends of the plurality of data lines at a first side and configured to supply a plurality of data signals to the plurality of data lines; an inspection unit coupled to ends of the plurality of data lines at a second side and configured to supply a plurality of inspection signals to the plurality of pixels; at least one detection line electrically coupled to the inspection unit and extending from a first side of the panel to a second side of the panel; and a reset transistor coupled between the detection line and a reset power supply and configured to turn on when it receives a first control signal.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: January 23, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min Woo Byun, Seung Kyu Lee
  • Patent number: 9865193
    Abstract: Provided herein is an image display apparatus including a receiver configured to receive first image data; a signal processor configured to process the received first image data; an outputter configured to output the processed first image data; a storage configured to store second image data; and a controller configured to cut off power supplied to at least one component from among components of the image display apparatus and to control the outputter to output the stored second image data to an area of a screen, in response to the image display apparatus entering a power saving mode.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: January 9, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung-jin Lim, Sung-soo Kim
  • Patent number: 9864635
    Abstract: Methods and apparatuses to reduce the number of read/write operations performed by a CPU may involve duplicating source data to enable parallel processing on the source data. A memory controller may be configured to duplicate data written to a first buffer to one or more duplicate buffers that are allocated to one or more processing threads, respectively. In some implementations, the one or more duplicate buffers are dedicated buffers, and the addresses of the first buffer and the one or more duplicate buffers are stored in a register of memory controller.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: January 9, 2018
    Assignee: Intel Corporation
    Inventor: Yen Hsiang Chew
  • Patent number: 9858899
    Abstract: To manage dynamic adjustment of the refresh rate of a computer display, the operating system defines at least two playback modes: one or more custom modes that can be selected by applications, and a standard mode which is a default setting for the system that can be expected by applications. The operating system provides an application programming interface that enables an application to request using a custom mode. If approved to use the custom mode, then the application presents frames for display based on the custom mode. The operating system stores timing data for each buffered frame indicating how to play the frame in both standard mode and the custom mode. If a transition back to the standard mode occurs, the operating system uses the timing data to properly present frames of video until the application stops generating frames of video in the custom mode.
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: January 2, 2018
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Daniel Wood, Vlad Alexandrov, Zhigang Xu, Max McMullen, Marcus Andrews, Bennett Sorbo, Andrei Baioura, Mikhail Leonov
  • Patent number: 9847068
    Abstract: A scan driving circuit includes a repair assembly, a pull-up assembly, a pull-up control assembly that drives the pull-up assembly, a pull-down maintaining assembly, and a reference low-level signal. When the pull-down maintaining assembly turns off in a work stage of a current scanning line, the repair assembly turns off. When the pull-down maintaining assembly turns on in the work stage of the current scanning line, the repair assembly is connected with the pull-down maintaining assembly. In the work stage of the current scanning line, the reference low-level signal is sent to the repair assembly via the turn-off unit, and turns off the pull-down maintaining assembly through the repair assembly.
    Type: Grant
    Filed: May 26, 2014
    Date of Patent: December 19, 2017
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD
    Inventor: Chao Dai
  • Patent number: 9824614
    Abstract: Disclosure are a display device that provides effective partitive driving using an optimal signal line structure, and provides partial driving that effectively drive a partial area under the signal line structure and partial driving, and a gate driving method thereof.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: November 21, 2017
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Dong-Woo Lee, SungGae Lee
  • Patent number: 9818361
    Abstract: A GOA circuit and a liquid crystal device (LCD) are disclosed. The GOA circuit includes a plurality of GOA units and a control module. Each of the cascaded GOA units is configured for charging corresponding horizontal scanning lines within a display area when being driven by a first level clock, a second level clock, a first control clock, and a second control clock. After the horizontal scanning lines are fully charged by the GOA circuit, the control module is configured for resetting the gate driving signals to be at the first level, i.e., the invalid level, via the turn-on pulse signals and the negative-voltage constant-voltage source.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: November 14, 2017
    Assignees: Shenzhen China Star Optoelectronics Technology Co., Ltd, Wuhan China Star Optoelectronics Technology Co., Ltd
    Inventors: Juncheng Xiao, Mang Zhao
  • Patent number: 9799293
    Abstract: A liquid crystal display device and a gate driving circuit are disclosed. The gate driving circuit includes multiple-stage gate driving units and a control chip. Each stage gate driving unit includes a first pulling control unit, a first pulling unit, a second pulling control unit, a second pulling unit, a first control unit, a second control unit and a third control unit. The control chip is used for pulling a first clock signal and a first voltage reference signal to a first voltage level. Accordingly, the scanning lines driven by the gate driving circuit are all turned on in order to stably realize an All-Gate-On function.
    Type: Grant
    Filed: September 21, 2015
    Date of Patent: October 24, 2017
    Assignees: Shenzhen China Star Optoelectronics Technology Co., Ltd, Wuhan China Star Optoelectronics Technology Co., Ltd
    Inventors: Juncheng Xiao, Shangcao Cao, Yao Yan, Ronglei Dai
  • Patent number: 9786249
    Abstract: A display system includes a processor coupled to receive image data from an image source and a frame timing circuit. The processor is coupled to output the image data and first sync signals, where each one of the first sync signals is output after M number of pixel values of the image data are output from the processor. The frame timing circuit is coupled to the processor to receive the image data and the first sync signals. The frame timing circuit is coupled to output X number of pixel values of the image data and second sync signals to a display, where the X number of pixel values is an integer multiple of the M number of pixel values of the image data. Each one of the second sync signals is output after X number of pixel values of the image data are output from the frame timing circuit.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: October 10, 2017
    Assignee: OmniVision Technologies, Inc.
    Inventor: Kevin Johnson
  • Patent number: 9787937
    Abstract: A display apparatus that is suitable for a video wall and an operation method thereof are provided. The display apparatus includes a display panel, a memory circuit and a video processing circuit. The memory circuit is used for storing extended display identification data (EDID), and resolution information of the EDID may affect a resolution of a video frame signal of a video source. The video processing circuit transmits the video frame signal to a video output connector. Based on a video wall configuration parameter, the video processing circuit captures part or all of pixel data in the video frame signal to obtain a captured frame, and displays the captured frame on the display panel. Based on the video wall configuration parameter, the video processing circuit can adaptively change the resolution information of the EDID stored in the memory circuit.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: October 10, 2017
    Assignee: Novatek Microelectronics Corp.
    Inventors: Chun-Wei Hung, Chia-Hsing Hou
  • Patent number: 9766730
    Abstract: A method for converting a driving frequency of a touch panel includes receiving a control signal for a display porch time, changing the display porch time based on the control signal, changing a cycle of the horizontal synchronizing signal based on the changed display porch time, and generating a touch driving signal synchronized with the horizontal synchronizing signal.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: September 19, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventor: Ji Gong Lee
  • Patent number: 9721674
    Abstract: Embodiments of the present disclosure provide a GOA unit and a method for driving the same, a GOA circuit and a display device. The embodiments of the preset disclosure relate in particular to the field of display manufacture. The GOA unit specifically comprises: a first node control module and a second node control module, wherein the first node control module is connected to a first control node, an input signal terminal, a first clock signal terminal, and an output signal terminal, wherein the second node control module is connected to a reset signal terminal, a second clock signal terminal, a third clock signal terminal, a first level terminal, the output terminal, and the first control node. The embodiment of the present disclosure may simplify the structure of a GOA circuit and be used for display manufacture.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: August 1, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Xiaofang Gu
  • Patent number: 9721502
    Abstract: A display may include an array of organic light-emitting diode display pixels having transistors characterized by threshold voltages subject to transistor variations. Compensation circuitry may be used to measure at transistor threshold voltage for a pixel. The threshold voltage may be sampled by controlling the pixel to sample the threshold voltage onto a capacitor at the pixel. The compensation circuitry may include sense circuitry that may be operated in combination with the pixel to transfer charge from the capacitor to the sense circuitry such that the threshold voltage is produced at an output of the sense circuitry. The compensation circuitry may generate compensation data based on the measured threshold voltage. During display operations, data circuitry may receive digital image data and process the digital image data along with the compensation data to generate analog data signals for the pixel.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: August 1, 2017
    Assignee: Apple Inc.
    Inventors: Yafei Bi, Wei H. Yao
  • Patent number: 9721520
    Abstract: The application disclosure a GOA circuit and a liquid crystal display. The GOA circuit including a plurality of GOA unit connected in series, wherein a Nth level GOA unit including a fifth transistor, a eighth transistor and a leakage control module. wherein the leakage control module is connected in series between the Nth level gate terminal signal and the drain terminal of the eighth transistor and/or between the Nth level pull-down signal and the drain terminal of the fifth transistor; in the valid period of the Nth level scanning signal can block the Nth level gate terminal signal through the leakage pathway of the eighth transistor and/or to block the Nth level pull-down signal through the leakage pathway of the fifth transistor to achieve the stability of the GOA circuit.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: August 1, 2017
    Assignees: Shenzhen China Star Optoelectronics Technology Co., Ltd, Wuhan China Star Optoelectronics Technology Co., Ltd
    Inventor: Shangcao Cao
  • Patent number: 9721524
    Abstract: A semiconductor integrated circuit includes a power line and a power supply circuitry. The power supply circuitry includes: a first power supply circuit operating on a first power supply voltage and having an output connected with the power line; and a second power supply circuit operating on a second power supply voltage higher than the first power supply voltage and having an output connected with the power line. The first power supply circuit is configured to drive the power line to a first preset, voltage. The second power supply circuit is configured to drive the power line to a second preset voltage lower than the first preset voltage. The second power supply circuit is configured not to decrease a third power supply voltage generated on the power line when the third power supply voltage is higher than the second preset voltage.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: August 1, 2017
    Assignee: Synaptics Japan GK
    Inventor: Teru Yoneyama
  • Patent number: 9715857
    Abstract: The present invention discloses a signal conversion device, a signal conversion method, a signal generating system and a display apparatus. The signal conversion device comprises: a pixel signal transmitting chip transmitting a plurality of pixel signals arranged in a first arrangement order; a patch unit rearranging the plurality of pixel signals in second arrangement order; a signal conversion chip converting the plurality of pixel signals arranged in the first or second arrangement order into a display signal packet in a first or second predetermined format; and a signal generating and outputting unit converting the display signal packet in the second predetermined format into display signal packet in a third predetermined format.
    Type: Grant
    Filed: August 17, 2015
    Date of Patent: July 25, 2017
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Jianfu Liu
  • Patent number: 9697756
    Abstract: A timing controller includes a display mode detection circuit configured to detect an image display mode of a display panel based on a plurality of first image data signals that are output in synchronization with a first clock signal having a first frequency, and to selectively activate at least one clock signal generation selected among a plurality of clock signal generators based on the detected image display mode, the clock signal generators configured to generate a second clock signal having a second frequency, respectively when activated by the display mode detection circuit, and to apply the second clock signal to a plurality of signal converting circuits, respectively, and the signal converting circuits configured to convert the first image data signals into a plurality of second image data signals that are output in synchronization with the second clock signal.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: July 4, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Seok-Hwan Roh
  • Patent number: 9691355
    Abstract: A method of reading data for a display drive IC of a panel is provided. The method includes receiving a write format and at least one image packet, generating a synchronization signal according to the write format, and reading data of the at least one image packet according to the synchronization signal such that the panel uses a video mode to display the data of the at least one image packet.
    Type: Grant
    Filed: August 25, 2013
    Date of Patent: June 27, 2017
    Assignee: NOVATEK Microelectronics Corp.
    Inventors: Teng-Yang Tan, Chun-Yi Chou
  • Patent number: 9671945
    Abstract: Certain aspects direct to a computing device for launching a virtual machine at a hypervisor. In certain embodiments, the computing device is a thin client or a zero client, which stores a user interface (UI), a first virtual desktop client (VDC) and a communication module. The UI receives input from a user of the computing device, and initializes the first VDC locally. The first VDC communicates with a first virtual machine (VM) hosted by a hypervisor of a remote computer system, receives desktop video display signals from the first VM, and sends signals associated with input from a user to the VM hosted by the hypervisor. The communication module constructs a first web-services message in accordance with a first web services protocol, and sends the first web-services message to the hypervisor, wherein the first web-services message instructs the hypervisor to perform a hypervisor management function.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: June 6, 2017
    Assignee: AMERICAN MEGATRENDS, INC.
    Inventors: Venkatesan Balakrishnan, Varadachari Sudan Ayanam, Veerajothi Ramasamy, Vivekanand Promad Kumar, Indira Valmiki
  • Patent number: 9660794
    Abstract: A bi-directional full-duplex lock system applied in a data transmission interface of a liquid crystal display is disclosed. The data transmission interface includes a transmitter and a receiver. The bi-directional full-duplex lock system includes a detection module and a control module. The detection module detects a transmitter link state of transmitter and a receiver link state of receiver respectively. The control module controls transmitter to transmit a lock signal to receiver, controls receiver to transmit the lock signal to transmitter, and controls one receiver to transmit the lock signal to another receiver. The lock signal relates to transmitter link state and receiver link state. When transmitter transmits the lock signal to receiver, a phase of the lock signal will be reversed for the receiver to detect whether its own frequency is correct.
    Type: Grant
    Filed: July 10, 2015
    Date of Patent: May 23, 2017
    Assignee: Raydium Semiconductor Corporation
    Inventor: Da-Rong Huang