Synchronizing Means Patents (Class 345/213)
  • Patent number: 10592021
    Abstract: An electronic device may be provided with a display. The display may be a variable frame rate display capable of adaptively adjusting a frame rate at which display frames are displayed in response to information associated with the current state of operation of the device. The information may be gathered using control circuitry in the electronic device. The control circuitry may gather the information for adjusting the frame rate by monitoring the electronic device power supply configuration, other device components, the type of content to be displayed, and user-input signals. The control circuitry may adjust the frame rate based on the gathered information by increasing or decreasing the frame rate. The control circuitry may be formed as a portion of display control circuitry for the device such as a display driver integrated circuit or may be formed as a portion of storage and processing circuitry external to the display.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: March 17, 2020
    Assignee: Apple Inc.
    Inventors: Brijesh Tripathi, Jean-Pierre S. Guillou
  • Patent number: 10575009
    Abstract: Systems, devices and methods are provided for video encoding. For example, video data is encoded based at least in part on a preset encoding algorithm to obtain a video encoding stream that comprises a plurality of coding frames. A stream tag is added for the video encoding stream, and a frame tag is added for each coding frame in the video encoding stream. The stream tag includes information characterizing whether the stream tag is added into the video encoding stream. The frame tag includes type information of the coding frame.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: February 25, 2020
    Assignee: Hangzhou Hikvision Digital Technology Co., Ltd.
    Inventors: Jie Chen, Shiliang Pu, Hai Yu
  • Patent number: 10540939
    Abstract: A display apparatus includes a display panel to display an image, a first frame counter to count a first number of frames during a first duration and to be reset when the first number reaches a first reference number, a second frame counter to count a second number of the frames during a second duration and to be reset when the second number reaches a second reference number, wherein the second duration occurs after and is shorter than the first duration, a level counter to hold a count value at a first count value during the first duration, to change the count value when the first frame counter is reset, and to change the count value when the second frame counter is reset, and a common voltage generator to control a level of a common voltage to correspond to the count value and to output the common voltage.
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: January 21, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jimyoung Seo, Kyoungwon Lee, Silyi Bang, Kwan-Young Oh, Junghwan Cho, Sangsu Han, Sangmi Kim, Jang-Hyun Yeo
  • Patent number: 10529292
    Abstract: A method of driving a display panel and a display apparatus having a plurality of gate lines and a plurality of data lines that cross the gate lines. The method includes determining whether to compensate a gate signal or not according to input image data displayed on a display panel, transmitting a first gate signal having a first falling waveform to a first gate line and a second gate signal having a second falling waveform different from the first falling waveform to the second gate line. A first gate clock signal may be adjusted when the gate signal is determined to be compensated. A timing controller may compensate the first gate signal when an artifact would be displayed based on a variation in brightness when a first subpixel row to which the first gate signal is applied is brighter than a second subpixel row for a same target luminance.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: January 7, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Chanwook Shim
  • Patent number: 10510279
    Abstract: The present disclosure provides a shift register unit, a gate scanning circuit, a driving method, and a display apparatus.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: December 17, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Xiaoxiang Zhang, Xi Chen, Mingxuan Liu, Huibin Guo, Liping Luo
  • Patent number: 10491871
    Abstract: A projector includes an input unit configured to receive an image signal, a display configured to display an image based on the image signal received by the input unit, an image displacement unit configured to change a position of the image to be displayed by the display, and a control unit configured to control a driving signal to drive the image displacement unit. An output timing of the driving signal is changed based on a frequency of the image signal.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: November 26, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Hideaki Nishizawa, Satoru Nasukawa, Takao Hirakura, Shohei Minato
  • Patent number: 10466737
    Abstract: A control system for overclocking a computer is disclosed. The control system includes a casing for housing a computer assembly and, on the casing, a control device electrically connected to the computer assembly, a display device electrically connected to the control device, an operation device data-linked to the control device, and a fan device electrically connected to the control device so as to be controlled by the operation device.
    Type: Grant
    Filed: August 6, 2017
    Date of Patent: November 5, 2019
    Assignee: EVGA CORPORATION
    Inventor: Yu-Sheng Han
  • Patent number: 10460651
    Abstract: A method of driving a display having a light emitting diode (LED) is provided. A driving pulse of a pulse width modulation method is applied to each pixel by a drive circuit, and a time for illuminating a red light, a blue light, and a green light, which are three primary colors, of each pixel is controlled, thereby controlling the luminance of the pixel.
    Type: Grant
    Filed: February 19, 2018
    Date of Patent: October 29, 2019
    Assignee: SUNDIODE KOREA
    Inventor: James Chinmo Kim
  • Patent number: 10460654
    Abstract: A semiconductor device includes: a receiving circuit which receives communication frames each transmitted with a first period or a second period that are different from each other and including a synchronization code and data; a logic circuit which has a first operation state in which the received communication frames are each processed as data other than a digital video signal, and a second operation state in which the received communication frames are each processed as the digital video signal; a detecting circuit which detects the synchronization code from each of the received communication frames; a measuring circuit which measures a period of the detected synchronization code; and a determining circuit which determines the measured period. The logic circuit substantially makes a transition to the first operation state or the second operation state according to a result of the determining.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: October 29, 2019
    Assignee: JOLED INC.
    Inventor: Hiroaki Ishii
  • Patent number: 10460689
    Abstract: Disclosed is a gate driving circuit, which includes multi-stages of gate driving units. Each stage of gate driving unit includes an input control module, an output control module, a pull-down module, a pull-down maintenance module, and a compensation module. Since the compensation module is provided, a threshold voltage of a transistor will not influence an electric potential of a first node. Hence, a stability of the gate driving circuit can be greatly improved, and a display effect of a liquid crystal display panel can be improved.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: October 29, 2019
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Longqiang Shi
  • Patent number: 10453410
    Abstract: Disclosed is a gate driving circuit, which includes multi-stages of gate driving units. Each stage of gate driving unit includes an input control module, an output control module, a pull-down module, a pull-down maintenance module, and an electric current compensation module. The electric current compensation module effectively compensates an electric potential of an output end of a present stage of gate driving unit, so that a stability of the gate driving circuit can be greatly improved, and a display effect of a liquid crystal display panel can be improved.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: October 22, 2019
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventor: Longqiang Shi
  • Patent number: 10403226
    Abstract: A source driver is disclosed, including a data exchanger configured to receive a predetermined number of units of data and store the data corresponding to a predetermined number of channels, and a latch unit configured to store the data output from the data exchanger. The data exchanger mutually exchanges data corresponding to two channels included in each of a plurality of groups, and independently exchanges data for each of the plurality of groups, in which each of the plurality of groups includes two adjacent channels.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: September 3, 2019
    Assignee: DB HiTek Co., Ltd.
    Inventor: Yoo Sung Kim
  • Patent number: 10387646
    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: March 30, 2018
    Date of Patent: August 20, 2019
    Assignee: Atmel Corporation
    Inventors: Pierre Samat, Alain Vergnes, Michel Douguet
  • Patent number: 10381426
    Abstract: A pixel includes a pixel circuit and an organic light emitting diode. The pixel circuit has first, second, third, and fourth transistors. The first transistor controls an amount of current flowing from a first driving power supply coupled to a first node to a second driving power supply through the organic light emitting diode. The turns on when a scan signal is supplied to a first scan line. The third transistor turns on when a scan signal is supplied to a second scan line. The fourth transistor turns on when a scan signal is supplied to a third scan line. The first transistor is a p-type Low Temperature Poly-Silicon thin film transistor and the third transistor and the fourth transistor are n-type oxide semiconductor thin film transistors.
    Type: Grant
    Filed: June 12, 2017
    Date of Patent: August 13, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ji Hyun Ka, Han Sung Bae, Won Kyu Kwak
  • Patent number: 10360839
    Abstract: A display apparatus includes a frame memory storing an input image signal having first and second reference blank durations respectively corresponding to a first frame and a second frame. A blank controller circuit determines a second delay blank duration based on the first and second reference blank durations and a first delay blank duration, a signal delay part generates an output image signal having the first and second delay blank durations corresponding to the first frame and second frame, respectively, is based on the stored input image signal, and a display panel displays an image based on the output image signal. The display apparatus may reduce or prevent flicker caused by variations in driving frequency that may be variable on a per-frame basis. A blank duration of a frame is controller, or a frame may be inserted in a blank duration based on blank durations of adjacent frames.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: July 23, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Heendol Kim, Jai-Hyun Koh, Jaehoon Lee
  • Patent number: 10360863
    Abstract: A gate driving circuit includes: a plurality of stages to provide gate signals to gate lines of a display panel, a k-th stage, where k is a natural number greater than or equal to 2, from among the plurality of stages being configured: to receive a clock signal, a (k?1)th carry signal from a (k?1)th stage, a (k+1)th carry signal from a (k+1)th stage, a (k+2)th carry signal from a (k+2)th stage, a first voltage, and a second voltage, the clock signal being a pulse signal in which a high voltage and a third voltage appear periodically, and the third voltage having a lower voltage level than those of the first voltage and the second voltage; and to output a k-th gate signal and a k-th carry signal.
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: July 23, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Junghwan Hwang, Sehyoung Cho
  • Patent number: 10319325
    Abstract: The embodiments of the present disclosure provides a shift register unit, a driving method thereof, a gate driving circuit and a display device, which relate to the field of display technology. The shift register unit includes a pull-up control module, a reset module, a pull-up module, a pull-down control module and a pull-down module, wherein the pull-down control module is configured to pull a voltage level of the pull-down node down to the second voltage terminal under control of the pull-up node, or the pull-down control module is configured to store a voltage of the third voltage terminal and output a voltage of the third voltage terminal to the pull-down node or release the stored voltage to the pull-down node under control of the third voltage terminal and the second voltage terminal.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: June 11, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Fei Xu
  • Patent number: 10311797
    Abstract: A display panel includes a pad electrically connected to an external device, a data line electrically connected to the pad, a pixel at a crossing region of the data line, a feedback line, and a scan line, and a transferring circuit block configured to provide an initialization voltage to the feedback line in response to an initialization control signal, and configured to electrically connect the feedback line with the data line in response to a first sensing control signal.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: June 4, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventor: Hai-Jung In
  • Patent number: 10304389
    Abstract: An OLED pixel driving circuit and an OLED display device. The OLED pixel driving circuit includes a first switching element, second switching element, a third switching element, a fourth switching element, a fifth switching element, a first capacitor, a second capacitor and an OLED. The signals received by the OLED pixel driving circuit include a data signal formed by reference voltage and data voltage. When lighting the organic electroluminescent device (OLED), a current flowing through the second switching element is proportional to a square of a difference between the data voltage and a reference voltage in the data signal. Through the above method, the present invention can increase the display quality of the OLED.
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: May 28, 2019
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Guang Li
  • Patent number: 10295848
    Abstract: A display device includes: a display panel; a driving frequency converter circuit configured to convert a driving frequency according to an input image data. A common voltage controller outputs a common voltage data corresponding to the driving frequency; and a common voltage generator receives the common voltage data to generate a common voltage and outputs the common voltage to the display panel. The common voltage has an inclined waveform within an integer multiple of a frame period.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: May 21, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dongin Kim, Jinkyu Park, Yohan Lee, Kihoon Choi, Hyunseok Hong
  • Patent number: 10296157
    Abstract: To provide a display device which includes a touch sensor and a large number of pixels and in which a driver circuit of a display portion and a driver circuit of a touch sensor are formed in one IC. The display device includes the display portion, the touch sensor, and a plurality of ICs. The plurality of ICs each include a first circuit. One of the plurality of ICs includes a second circuit and a third circuit. The first circuit has a function of outputting a video signal to the display portion. The second circuit has a function of outputting a signal for driving a sensor element included in the touch sensor. The third circuit has a function of converting an analog signal output from the sensor element into a digital signal.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: May 21, 2019
    Inventors: Kei Takahashi, Wataru Uesugi, Hiromichi Godo
  • Patent number: 10282018
    Abstract: A display device includes a display panel including data lines, gate lines crossing the data lines, and pixels arranged in a matrix form, a touch screen which is embedded in the display panel or is installed on the display panel, a data driving circuit supplying a data voltage to the data lines, a gate driving circuit supplying a gate pulse to the gate lines, and a touch sensing circuit which supplies a driving signal to lines of the touch screen and senses a touch input. The gate driving circuit alternately drives pull-down transistors connected in parallel to one gate line. The gate driving circuit drives one of the pull-down transistors or simultaneously drives the pull-down transistors during a drive period of the touch screen.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: May 7, 2019
    Assignee: LG Display Co., Ltd.
    Inventor: Sungchul Kim
  • Patent number: 10276110
    Abstract: A liquid crystal panel driver includes a signal controller to generate pixel clock signals and adjust duty cycle of the pixel clock signals, and a gate driver to receive the pixel clock signal of an adjusted duty cycle and a preset gate turn-on voltage provided by an external signal source, and calculate the actual gate turn-on voltage provided to the gate lines based on the pixel clock signal of the adjusted duty cycle and the preset gate turn-on voltage. The present disclosure also proposes a method for driving drivers of a liquid crystal display, the drivers comprising a signal controller and gate drivers. The liquid crystal panel driver and the method to ensure that each gate driver outputs an identical gate turn-on voltage VGH, therefore areas driven by each gate drivers have the same actual charging time, which elevates the display quality of an LCD.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: April 30, 2019
    Assignee: Shenzhen China Start Optoelectronics Technology Co., Ltd
    Inventors: Yin-hung Chen, Yu Wu, Anle Hu
  • Patent number: 10262612
    Abstract: The present disclosure provides a scan compensation method and a scan compensation circuit of a gate driver. The scan compensation method comprises: when the gate driver switching from first scanning mode to second scanning mode or from second scanning mode to first scanning mode, performing a first operation to a clock signal and a first compensation signal of the gate driver, and performing a second operation to the obtained signals and a second compensation signal, wherein the first scanning mode is a sequential scan mode, the second scanning mode is non-sequential scan mode.
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: April 16, 2019
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Zhao Wang
  • Patent number: 10262584
    Abstract: The pixel circuit comprises a driving sub-circuit, a controlling sub-circuit and a light-emitting sub-circuit. The light-emitting sub-circuit includes a first organic light-emitting element and a second organic light-emitting element. The first and second organic light-emitting elements are coupled to the driving sub-circuit respectively. The controlling sub-circuit is coupled to the driving sub-circuit so as to control the driving sub-circuit to drive the first and second organic light-emitting elements, so that at an identical display stage, one of the first and second organic light-emitting elements emits light in a forward bias state and the other does not emit light in a backward bias state, and at an adjacent display stage, the bias states are switched.
    Type: Grant
    Filed: October 24, 2013
    Date of Patent: April 16, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Xiaojing Qi, Haigang Qing
  • Patent number: 10262574
    Abstract: A driver signal control circuit for a display panel is proposed. A timing controller is connected to an input terminal of a gate voltage shaping controller and a first FET. A first output terminal of the gate voltage shaping controller is connected to a gate of the first FET. A drain of the first FET is connected to the output terminal of the control circuit. A second output terminal of the gate voltage shaping controller is connected to a gate of the second FET, and a source of the second FET is connected to the output terminal of the control circuit. A second terminal of the discharge passage is connected to an output terminal of the control circuit. The control circuit effectively prevents the production costs when display panels with different production batches are fabricated using different fabrication processes.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: April 16, 2019
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Wenfang Li, Dan Cao
  • Patent number: 10255843
    Abstract: The disclosure discloses a flat panel display device and a scan driving circuit thereof. The scan driving circuit includes a plurality of first scan drivers and a plurality of second scan drivers that are cascaded, the plurality of first scan drivers and the plurality of second scan drivers receive a clock signal alternately. The plurality of first scan drivers and the plurality of second scan drivers perform cascaded transmission according to the clock signal. The disclosure performs cascaded transmission by interposing a clock signal, which can reduce the amount of input signals and simplify the array process.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: April 9, 2019
    Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd.
    Inventors: Guanghui Hong, Qiang Gong, Chunqian Zhang
  • Patent number: 10249238
    Abstract: The present application discloses a pixel driving circuit configured to operate in a display cycle including sequentially an initialization period, a compensation period, and a light-emitting period, the pixel driving circuit including a driving transistor having a gate, a source, and a drain; a first storage capacitor having a first terminal connected to the gate of the driving transistor and a second terminal connected to a first power signal input port; an emission control sub-circuit disposed between the source of the driving transistor and the first power signal input port; a data write-in sub-circuit disposed between a data input port and the drain of the driving transistor which is also connected to the emission control sub-circuit; a compensation sub-circuit disposed between the source of the driving transistor and the first terminal of the first storage capacitor; and a light emitting device having a first terminal connected to the emission control sub-circuit and a second terminal connected to a sec
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: April 2, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Youngyik Ko, Bo Wang, Yipeng Chen, Yi Zhang
  • Patent number: 10242613
    Abstract: A method for driving a display panel, a display panel, and a display device are provided, where in a first operating mode, a gate driver circuit is controlled for each image frame to output a scan signal to N rows of gate lines on the display panel sequentially in a preset scan direction to thereby display throughout a screen; and in a second operating mode, the gate driver circuit is controlled for each image frame to output a scan signal to m adjacent rows of gate lines on the display panel sequentially in the preset scan direction to thereby display only in an area corresponding to the m adjacent rows of gate lines without scanning the gate lines in an area in which no image may be displayed, so as to lower power consumption of the display panel operating in the second operating mode.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: March 26, 2019
    Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Qing Lu, Min Zeng, Xiaomeng Ma
  • Patent number: 10229650
    Abstract: An array substrate and a display device are provided. In the array substrate, each of first shift register units and second shift register units is electrically connected to a respective scanning line. Scanning lines electrically connected to the first shift register units at the same stage or to the second shift register units at the same stage are in the same row. Clock signal input terminals of the first shift register units at the same stage or of the second shift register units at the same stage receive the same clock signal. Enable signal input terminals of the first shift register units at the first stage or of the second shift register units at the first stage receive the same enable signal.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: March 12, 2019
    Assignee: XIAMEN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Xiaoxiao Wu, Guozhao Chen
  • Patent number: 10223975
    Abstract: An electronic device may be provided with an organic light-emitting diode display. The display may include row driver circuitry that provides an emission control signal at an output terminal to display pixels. The emission control signals may enable or disable light emission by the pixels. The row driver circuitry may include a bootstrapping capacitor that stores charge for boosting a gate signal at an intermediate node for a pull-up transistor above a power supply voltage. The row driver circuitry may include a pull-down transistor coupled to the intermediate node. The source terminal of the pull-down transistor may be coupled to the output terminal or an additional pull-down transistor may be stacked with the pull-down transistor to reduce leakage current. Charge pump circuitry may be coupled to the intermediate node to ensure that the intermediate node is maintained at a voltage above the power supply voltage.
    Type: Grant
    Filed: October 1, 2014
    Date of Patent: March 5, 2019
    Assignee: Apple Inc.
    Inventors: Vasudha Gupta, Tsung-Ting Tsai, Jae Won Choi, Sang Y. Youn, Young Bae Park, Chin-Wei Lin
  • Patent number: 10217400
    Abstract: A display control apparatus comprising at least one memory element within which image data is stored, at least one display controller arranged to read from the, or each, memory element the image data and to output display data generated from the read image data to at least one display device. The display control apparatus further comprises at least one interface component via which the display controller is arranged to read image data from the memory element. The display control apparatus further comprises at least one interface bandwidth control component arranged to measure image data flow over the interface component from the memory element to the display controller, and configure a bandwidth for image data flow over the interface component from the memory element to the display controller based at least partly on the measured image data flow.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: February 26, 2019
    Assignee: NXP USA, Inc.
    Inventors: Michael Andreas Staudenmaier, Vincent Aubineau, Kshitij Bajaj
  • Patent number: 10217414
    Abstract: An emission control driver includes a plurality of stages configured to output a plurality of emission control signals, respectively. Each stage includes an input circuit for receiving a previous emission control signal from one of previous stages or a vertical start signal, and configured to control a voltage of a first node and a voltage of a second node in response to a first clock signal; a stabilizing circuit for stabilizing the voltage of the first node in response to the voltage of the second node and a second clock signal; a voltage adjusting circuit connected between the second node and a third node, configured for boosting the voltage of the second node, and controlling the boosted voltage of the second node; and an output circuit configured to control an emission control signal in response to the voltage of the first node and a voltage of the third node.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: February 26, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jun-Hyun Park, Sung-Hwan Kim, Kyoung-Ju Shin, Sang-Uk Lim, Yang-Hwa Choi
  • Patent number: 10218488
    Abstract: A signal is transmitted at a high speed in a direction opposite to a transmitting direction of a main large-capacity channel. A first transmitting unit transmits a first signal including a clock component to an external device through a transmission path as a differential signal. A second transmitting unit superimposes a second signal including a clock component on the transmission path as an in-phase signal to transmit to the external device. A state notifying unit communicates with the external device through a pair of differential transmission paths included in the transmission path and notifies the external device of a connection state of its own device by a DC bias potential of at least one of the pair of differential transmission paths.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: February 26, 2019
    Assignee: Sony Corporation
    Inventors: Kazuaki Toba, Gen Ichimura
  • Patent number: 10216670
    Abstract: The invention relates to a system comprising a plurality of boards, each of which comprises a sensor and a control processor. The boards are connected together by a serial bus. One of the boards acts as master and the others as slaves. The master board is suitable for accessing the measurements of the plurality of boards and for sending these measurements, via a UART connection, to a host processor. The acquisition of the measurements takes place according to a specific synchronization method.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: February 26, 2019
    Assignee: STMICROELECTRONICS (GRENOBLE 2) SAS
    Inventor: Giovanni Scozzola
  • Patent number: 10204585
    Abstract: A shift register unit, gate driving device, display device and driving method are provided. The shift register unit includes: an input circuit, configured to control a potential of a pull-up control node based on an input signal; a pull-down control circuit, configured to control a potential of a pull-down control node based on the input signal and the potential of the pull-up control node when first signal is at a first level; a pull-down circuit, configured to pull down the potential of the pull-up control node based on the potential of the pull-down control node; a pull-up circuit, configured to control an output signal output from a signal output terminal based on the potential of the pull-up control node and the clock signal; and a reset circuit, configured to reset the output signal based on the potential of the pull-down control node when second signal is at a second level.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: February 12, 2019
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Seung Woo Han, Guangliang Shang
  • Patent number: 10192504
    Abstract: The present disclosure provides a shift register, including: an input unit, an output control unit, a first pull-down unit, a second pull-down unit, a reset unit, and a pull-down control unit. The input unit comprises a control terminal connected to a signal input terminal, a first terminal connected to a first voltage terminal, and a second terminal connected to a first node. The output control unit comprises a control terminal connected to the first node, a first terminal connected to a first clock signal terminal, and a second terminal connected to a signal output terminal. The first pull-down unit comprises a control terminal connected to a second node, a first terminal connected to the first node, and a second terminal connected to a compensation signal terminal. The second pull-down unit comprises a control terminal connected to the compensation signal terminal, and a first terminal connected to the second node.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: January 29, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD
    Inventors: Mingfu Han, Seungwoo Han, Guangliang Shang, Hyunsic Choi, Xing Yao, Haoliang Zheng, Xue Dong, Jungmok Jun, Yunsik Im
  • Patent number: 10192498
    Abstract: The present disclosure provides an image display method and apparatus, and a multi-domain liquid crystal display device, relates to the field of display technologies. The image display method applied to a multi-domain liquid crystal display device includes: acquiring grayscales of pixels in a frame of an input image; determining GAMMA voltages corresponding to pixels in two neighboring frames of an output image according to the grayscales of the pixels in the frame of the input image, where for any pixel of the output image, a corresponding GAMMA voltage thereof in a first frame of the two neighboring frames is greater than a reference voltage corresponding to the pixel, and a corresponding GAMMA voltage thereof in a second frame of the two neighboring frames is less than the reference voltage; and displaying the two neighboring frames of the output image according to the GAMMA voltages of the pixels therein.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: January 29, 2019
    Assignee: Hisense Electric Co., Ltd.
    Inventors: Jianwei Cao, Shunming Huang, Weidong Liu
  • Patent number: 10192474
    Abstract: A controllable voltage source, comprising a control module (1), a storage module (2) and an output module (3); the control module (1) is coupled between a high level end and a low level end; the storage module (2) comprises a storage capacitor; two ends of the storage capacitor are respectively coupled to the control module (1) to form a first terminal and a second terminal; the output module (3) is coupled to the second terminal, and the signal output end thereof is used to output to an external circuit the voltage signal of the controllable voltage source; the control module (1) responds the effective level of a first clock signal so as to enable the first terminal to be coupled to the high level end, and the first terminal is charged from the high level end; the control module (1) responds the effective level of a second clock signal so as to enable the second terminal to be coupled to the high level end, and the second terminal is charged from the high level end; and the first terminal is coupled to the l
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: January 29, 2019
    Assignee: Peking University Shenzhen Graduate School
    Inventors: Shengdong Zhang, Congwei Liao, Zhijin Hu, Wenjie Li, Junmei Li
  • Patent number: 10186227
    Abstract: A corner cut circuit in a liquid crystal panel driving system, wherein the corner cut circuit includes: a controller to provide a first signal for a signal converter; a signal converter to convert the first signal to a second signal for controlling discharging of a discharge circuit, and to provide the second signal to the discharge circuit; and a discharge circuit to generate a corner cut voltage of the corner cut circuit according to the second signal provided by the signal converter. According to the corner cut circuit, a corner cut voltage can be automatically adjusted, a peripheral circuit is simplified, and the cost is reduced.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: January 22, 2019
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventor: Dan Cao
  • Patent number: 10186223
    Abstract: The present invention discloses a GOA circuit, comprising a plurality of GOA units which are cascade coupled, and the Nth stage GOA unit is employed to control charge to the Nth level scan line G(N), and the pull-down holding circuit of the Nth stage GOA unit comprises a Nth control circuit, a Nth holding circuit and a Nth shared circuit; the pull-down holding circuit of the (N+4)th stage GOA unit comprises a (N+4)th control circuit, a (N+4)th holding circuit and a Nth shared circuit; a first control end Q(N) of the Nth control circuit and a second control end receiving the first control signal regulates and controls a voltage level of the output end P(N) thereof; a first control end Q(N+4) of the (N+4)th control circuit and a second control end receiving the low frequency control signal regulates and controls a voltage level of the output end P(N+4) thereof.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: January 22, 2019
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Hongyuan Xu
  • Patent number: 10186186
    Abstract: An electronic paper display including an electronic paper display panel and a driver circuit is provided. The electronic paper display panel is configured to display an image. The driver circuit is coupled to the electronic paper display panel. The driver circuit is configured to drive the electronic paper display panel to display the image by using a plurality of driving signals. Each of the driving signals includes a reset period and a display period. The display period includes a pulse driving period. The driving signals include a first driving signal and a second driving signal configured to drive the electronic paper display panel to display the image by using a pulse width modulation signal during the pulse driving period.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: January 22, 2019
    Assignee: E Ink Holdings Inc.
    Inventors: Chih-Yu Cheng, Hsin-I Wu, Feng-Shou Lin
  • Patent number: 10181283
    Abstract: An electronic circuit for driving an electronic component is disclosed. The electronic circuit includes a drive subcircuit, a first subcircuit, a second subcircuit, a third subcircuit, a fourth subcircuit, and a fifth subcircuit. Under control of a data signal terminal, a scan signal terminal, a first control signal terminal, a second control signal terminal, a first power supply terminal, and a second power supply terminal, the drive subcircuit is configured to have a diode connection or a source-follow connection so as to maintain a substantially stable working current running through the electronic component. The electronic circuit can be a pixel circuit, and the electronic component can be a light-emitting component comprising an organic light-emitting diode (OLED). A display panel and a display apparatus containing the electronic circuit, as well as a method for driving the electronic circuit are also disclosed.
    Type: Grant
    Filed: June 12, 2017
    Date of Patent: January 15, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhiliang Wang, Zhanjie Ma
  • Patent number: 10177774
    Abstract: A digital to time converter (DTC). The DTC includes a lookup table, a divider, a thermometric array and a switched capacitor array. The lookup table is configured to generate one or more corrections based on thermometric bits of an input signal. The divider is configured to generate a plurality of divider signals from an oscillator signal based on the one or more corrections. The thermometric array is configured to generate a medium approximation signal from the plurality of divider signals based on the one or more corrections. The switched capacitor array is configured to generate a digital delay signal from the medium approximation signal based on the one or more corrections and switched capacitor bits of the input signal.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: January 8, 2019
    Assignee: Intel IP Corporation
    Inventors: Georgios Yorgos Palaskas, Paolo Madoglio, Peter Preyler, Rotem Banin
  • Patent number: 10175812
    Abstract: The disclosure discloses an elimination method of parasitic capacitance and a device. During a touch scanning period, inputting a first simulation signal to source electrode lines and inputting a second simulation signal to multiplex lines can eliminate parasitic capacitance. Waveforms of the first simulation signal and a touch scanning signal input in a common electrode are identical or similar, waveforms of the second simulation signal and the touch scanning signal input in the common electrode are similar, waveforms of the third simulation signal and the touch scanning signal input in the common electrode are similar, a second simulation waveform includes a first target high level, a second target high level, a first target low level and a second target low level that are generated by different modules, the first target high level>the second target high level>the first target low level>the second target low level.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: January 8, 2019
    Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd
    Inventors: Feilin Ji, Xiaoping Tan
  • Patent number: 10127848
    Abstract: A display device, including a display panel including a plurality of pixels coupled to scan lines and data lines, the display panel having a display area divided into a first display area at a first side thereof and a second display area at a second side opposite to the first side; a scan driver to supply a scan signal through the scan lines; and a data driver to supply a data signal through the data lines, the scan lines including first sub-scan lines corresponding to the first display area and second sub-scan lines corresponding to the second display area, and switching elements being coupled between the first sub-scan lines and the second sub-scan lines.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: November 13, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Hyung Ryul Kang
  • Patent number: 10115335
    Abstract: The present disclosure relates to a shift register unit and driving method thereof, a gate driving circuit and a display device. The shift register unit comprises: an input module for controlling a level of a first node based on a scan pulse, an output module for controlling a scan pulse output based on the level of the first node, a reset module for resetting the first node and the scan pulse output, and a control module for generating a reset trigger signal, wherein the reset module further resets the first node based on the reset trigger signal. The shift register units can be cascaded to form a gate driving circuit to realize output of multiple scan pulses. By integrating such a gate driving circuit on the array substrate, area of the bezel region of the array substrate can be reduced, thereby facilitating bezel narrowing of a display device.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: October 30, 2018
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Haoliang Zheng, Seungwoo Han, Guangliang Shang, Hyunsic Choi, Mingfu Han, Xing Yao, Zhichong Wang, Lijun Yuan
  • 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