Synchronizing Means Patents (Class 345/213)
  • Patent number: 10997936
    Abstract: A shift register unit, a gate drive circuit and a display device are disclosed. The shift register unit includes an input circuit, an output circuit, a reset circuit, a control circuit and a reset stabilizing circuit. The input circuit is configured to write an input signal into a first node in response to an input start signal. The output circuit is configured to output a preparatory output signal to an output terminal under control of an electric level of the first node. The reset circuit is configured to reset the output terminal under control of an electric level of a second node. The control circuit is configured to apply a first voltage signal to the second node in response to a control signal. The reset stabilizing circuit is configured to apply a second voltage signal to the first node in response to a reset stabilizing signal.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: May 4, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chen Xu, Xueguang Hao, Yong Qiao, Xinyin Wu
  • Patent number: 10997890
    Abstract: Disclosed herein is a shift register, a grid driver circuit and a display device. The shift register may comprise a first pull-down point control circuit having a control end coupled to a pull-up point and two ends coupled to a pull-down point and a first voltage input respectively, a second pull-down point control circuit having two control ends coupled to an input signal and a control input respectively and two ends coupled to the pull-down point and the first voltage input respectively, a first pull-up point control circuit having a control end coupled to the pull-down point and two ends coupled to the pull-up point and the first voltage input respectively, and a second pull-up point control circuit having a control end coupled to a first clock signal and two ends coupled to the pull-up point and the first voltage input respectively.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: May 4, 2021
    Assignees: Beijing BOE Technology Development Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xueguang Hao, Yongda Ma, Yong Qiao, Xinyin Wu
  • Patent number: 10991332
    Abstract: The present application discloses a shift-register circuit including a shift-register unit and a shutdown-discharge sub-circuit. The shift-register unit is coupled to a clock port, a first reference voltage port, a second reference voltage port, and an output port and configured to set a voltage level at a pull-up node to control a clock signal from the clock port being outputted to the output port to drive a display panel during a display period. The shutdown discharge sub-circuit is configured to at least simultaneously receive a shutdown signal at a first voltage level from a shutdown-discharge control port and a second signal at the first voltage level from the second reference voltage port to start a shutdown period to discharge at least one of the pull-up node and the output port. The shutdown signal has a signal length longer than a signal length of the second signal.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: April 27, 2021
    Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xibin Shao, Zhangtao Wang, Rui Ma, Tong Yang
  • Patent number: 10991316
    Abstract: A display device includes: a display panel to display an image; a signal controller to determine whether an input image signal is a still image signal, and if the input image signal is a still image signal, further determine whether image switching occurs, and if image switching occurs, to compensate image data according to frame data after the image is switched by using data values of two pieces of frame data between which the image switching occurs; and a data driver to generate a data signal based on the image data and to output the data signal to the display panel.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: April 27, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ji-Won Kim, Nam-Hee Goo, Byung-Su Oh, A Ra Jo
  • Patent number: 10991306
    Abstract: A circuit of driving pixel includes a driving transistor, having a first end connected to a first node, a control end connected to a second node, and a second connected to the third node end; a writing circuit, connected a data signal end, a first scanning end and the first node; a first control circuit, connected to a first power end, a light emitting control end and the first node; a reset circuit, connected to a reference signal end, a second scanning end and the second node; a compensation circuit, connected between the second node and the third node; a second control circuit, connected to the third node, a light emitting element and the light emitting control end; and an energy storage circuit, connected between the first power end and the second node. The second end of the light emitting element receives a second voltage signal.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: April 27, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Tieshi Wang, Xueling Gao, Zhiqiang Xu, Chengchung Yang, Haoran Liu
  • Patent number: 10978168
    Abstract: A shift register unit, a method of driving the same, a gate driving circuit and a display device are provided. The shift register unit includes a pull-up node control circuit, a first pull-down node control circuit, a second pull-down node control circuit, a pull-down node switching control circuit, and a gate driving output circuit. The pull-down node switching control circuit is configured to control the first control voltage signal to be written into the first pull-down node and control the second control voltage signal to be written into the second pull-down node under the control of a frame reset control signal. The gate driving output circuit is configured to control a gate driving signal outputted by a gate driving signal output terminal under the control of the voltage signal of the pull-up node, the voltage signal of the first pull-down node, and the voltage signal of the second pull-down node.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: April 13, 2021
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Tong Yang, Yongxian Xie
  • Patent number: 10970708
    Abstract: A payment terminal such as a payment reader may receive and form electrical connections with an electronic transaction card such as an EMV chip card. The payment terminal may provide power to the electronic transaction card and engage in communications with the electronic transaction card. Based on information received from the electronic transaction card, the payment terminal may predict the locations of data objects that must be accessed in order to process transactions. The data objects may be accessed based on the predictions and the transaction may be processed.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: April 6, 2021
    Assignee: Square, Inc.
    Inventor: David Terra
  • Patent number: 10957270
    Abstract: A GOA circuit is disclosed. The circuit includes multiple cascaded GOA units, wherein the nth stage GOA unit charges the nth horizontal scanning line, and the nth stage GOA unit includes: a pull-up control circuit, a pull-up circuit, a voltage stabilization circuit, a pull-down circuit, a first pull-down maintaining circuit and a second pull-down maintaining circuit; a pull-up control circuit for outputting a pull-up control signal Q(n); and a pull-up circuit for outputting an nth stage transmission signal ST(n) and the nth stage scan driving signal G(n); the voltage stabilization circuit for maintain the stability of the Q(n) at low voltage level; the pull-down circuit makes the Q(n) and G(n) to be at an off state; the pull-down maintaining circuit and the second pull-down maintaining circuit alternately operate to maintain Q(n) and G(n) at the off state. A liquid crystal display device having the above GOA circuit is also disclosed.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: March 23, 2021
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Xiangyang Xu
  • Patent number: 10943554
    Abstract: A shift register unit, a method of driving a shift register unit, a gate driving circuit and a touch display device are disclosed. The shift register unit includes a first signal input terminal, a first voltage control terminal, a second signal input terminal, a second voltage control terminal, a signal output terminal, a first voltage terminal, and a second voltage terminal. The shift register unit further comprises a first input circuit, a second input circuit, an output circuit, an anti-leakage circuit, a first control circuit, and a second control circuit. The anti-leakage circuit is configured to bring a first node into conduction with a second node in response to an active potential of the second voltage terminal.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: March 9, 2021
    Assignees: Ordos Yuansheng Optoelectronics Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Zhen Wang, Jian Sun, Fei Huang, Yun Qiao, Xiaozhou Zhan, Han Zhang, Wenwen Qin, Lele Cong, Zhengkui Wang, Jianjun Zhang, Peng Liu
  • Patent number: 10923075
    Abstract: A method of displaying an image, a display device, an electronic device and a computer readable storage medium are disclosed. The method may comprise: acquiring an image to be displayed, the image comprising a plurality of layers; superimposing first image information of pixels in each of the plurality of layers, so as to obtain second image information of pixels in an overlaid layer image; arranging the second image information based on a plurality of colors, so as to obtain third image information comprising a plurality of portions; and displaying each portion having the same color sequentially in a preset order of the plurality of colors.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: February 16, 2021
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiurong Wang, Lingyun Shi, Yafei Li, Wenhao Liu, Tao Yang
  • Patent number: 10923048
    Abstract: In a display device including a display panel having two areas and a backlight having two light-emitting sections, a first scanning period, a first blanking period, a second scanning period, and a second blanking period are set sequentially in one frame period, scanning lines in a first area are selected sequentially in the first scanning period, the scanning lines in a second area are selected sequentially in the second scanning period, a second light-emitting section is made to turn on in a first turn-on period set in the first blanking period, and a first light-emitting section is made to turn on in a second turn-on period set in the second blanking period.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: February 16, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Takuya Handa, Kohichi Ohhara, Hideo Tohdoh
  • Patent number: 10921855
    Abstract: A semiconductor assembly for a display device comprises a display driver integrated circuit (DDIC) chip and an interposer coupled to the DDIC chip. The DDIC chip comprises a plurality of output pads and a plurality of input pads. Further, the DDIC chip is configured to drive a plurality of data lines of the display device to update an active region of the display device. The interposer comprises a plurality of output pads coupled to the plurality of output pads of the DDIC chip and is configured to be coupled to the plurality of data lines of the display device. The interposer further comprises a plurality of input pads coupled to the plurality of input pads of the DDIC chip pads. Further, a width of the interposer is at least as large as a distance between outermost data lines of the plurality of data lines.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: February 16, 2021
    Assignee: Synaptics Incorporated
    Inventors: Shengmin Wen, Qing Xiao, Jason Goodelle, Joseph Kurth Reynolds
  • Patent number: 10909893
    Abstract: The present disclosure provides a shift register circuit, a GOA circuit and a display device. The shift register circuit includes a shift register sub-circuit. The shift register sub-circuit includes a pull-up node, a pull-down node and a touch potential control circuit. The touch potential control circuit is coupled to a touch potential control terminal, an output terminal of the shift register sub-circuit, the pull-up node, the pull-down node and a low level output terminal, respectively. The touch potential control circuit is configured to, under control of the touch potential control terminal in a touch phase, control each of the output terminal of the shift register sub-circuit, the pull-up node and the pull-down node to be coupled to the low level output terminal.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: February 2, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Xueguang Hao
  • Patent number: 10911047
    Abstract: Certain aspects of the present disclosure generally relate to a level-shifting circuit. The level-shifting circuit generally includes a first pull-up path having at least one first diode and at least one first transistor, and a second pull-up path having at least one second diode and at least one second transistor. The level-shifting circuit may also include a first pull-down path having a third transistor and a fourth transistor, wherein the fourth transistor is coupled between the third transistor and the first diode; a second pull-down path having a fifth transistor and a sixth transistor, wherein the sixth transistor is coupled between the fifth transistor and the second diode; and an overvoltage protection circuit coupled to gates of the fourth transistor and the sixth transistor.
    Type: Grant
    Filed: January 15, 2020
    Date of Patent: February 2, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Rohit Shetty, Chiew-Guan Tan, Gregory Lynch
  • Patent number: 10902785
    Abstract: A pixel driving circuit for an organic light-emitting diode (OLED) display panel is provided. The circuit includes a restoration module, a compensation module including a storage capacitor, a light-emitting module, and a storage capacitor control module. The restoration module receives a first control signal and a restoration voltage and restores the compensation module and the light-emitting module under the control of the first control signal. The compensation module receives a second control signal, and writes a data signal and compensates a threshold voltage under the control of the second control signal. The light-emitting module receives a third control signal and illuminates under the control of the third control signal. The storage capacitor control module adjusts a capacitance value of the storage capacitor in the compensation module according to different refresh frequencies of the OLED display panel, preventing insufficient charging due to an increasing refresh frequency.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: January 26, 2021
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., LTD.
    Inventor: Hai Wang
  • Patent number: 10896645
    Abstract: A foldable display device according to example embodiments includes a flexible display panel including a first display area having at least partially foldable area and a second display area not having the foldable area, a folding sensor in the first display area configured to detect a folding status of the flexible display panel and output a detecting signal which includes the folding status of the flexible display panel, a scan driver configured to sequentially provide scan signals to at least a part of a plurality of scan lines based on the detecting signal, a data driver configured to provide data signals to the flexible display panel based on the detecting signal, and a timing controller configured to convert input image data into corrected image data based on the detecting signal and control the scan driver and the data driver.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: January 19, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seung-Jun Lee, Hyo-Jin Lee, Hui Nam, Myung-Ho Lee
  • Patent number: 10891887
    Abstract: Technology for a display source device is described. The display source device can receive a frame start indication from a display panel at a start of a frame. The display source device can align a timing of the display source device to a timing of the display panel based on the frame start indication received from the display panel to obtain frame-level synchronization between the display source device and the display panel. The display source device can send one or more frame update regions to the display panel in accordance with the timing of the display source device that is aligned to the timing of the display panel.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: January 12, 2021
    Assignee: Intel Corporation
    Inventors: Nausheen Ansari, Seh Kwa, Paul S. Diefenbaugh, Robert Johnston
  • Patent number: 10885842
    Abstract: A display device includes: a display panel including: a scan line, a data line, and an emission control line; a pixel including: a plurality of transistors connected to the scan line, the data line and the emission control line; and an organic light-emitting diode driven by the plurality of transistors, and a scan driver configured to: in response to an image mode being a moving image mode, generate a first mode scan signal having a turning-on voltage of a transistor for a plurality of horizontal periods; and in response to the image mode being a static image mode, generate a second mode scan signal having the turning-on voltage for a single horizontal period.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: January 5, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chul Kyu Kang, Sang Moo Choi, Dongsun Lee
  • Patent number: 10885825
    Abstract: The present application provides a gate driving circuit, a display apparatus and a method of driving the same. The gate driving circuit includes a plurality of shift registers, which are divided into a first group of shift registers and a second group of shift registers. An output terminal of an A-th stage of shift register is electrically coupled to an input terminal of a (A+1)-th stage of shift register, an output terminal of a (A+1)-th stage of shift register is electrically coupled to an input terminal of a (A+1+n)-th stage of shift register, a reset terminal of the A-th stage of shift register is electrically coupled to an output terminal of a (A+a+n)-th stage of shift register, and a reset terminal of the (A+1)-th stage of shift register is electrically coupled to an output terminal of a (A+a+n+1)-th stage of shift register.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: January 5, 2021
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Hongwei Dai, Fucheng Yang, Zheng Wang
  • Patent number: 10872551
    Abstract: This disclosure provides a shift register unit that includes an input circuit, a reset circuit, an output circuit, a first pull-down control circuit, a second pull-down control circuit, a first pull-down circuit and a second pull-down circuit. This disclosure also provides a control method for the shift register unit, a gate drive circuit, a display substrate and a display device.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: December 22, 2020
    Assignees: HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhen Zhang, Zhengwei Zhu, Wencheng Hu
  • Patent number: 10861360
    Abstract: A display device includes a pixel column including first to n-th pixels connected to a same data line and different gate lines from each other, a data driving chip which outputs a test data voltage in a test mode and outputs image data voltages in a normal mode, a sensing circuit which is electrically connected to the data line and the data driving chip in the test mode, senses a current output to the first pixel during a first period, and senses a current output to an i-th pixel during a second period, and a signal controller which compares a reference charge amount calculated based on the current sensed during the first period to a first charge amount calculated based on the current sensed during the second period and compensates for a level of an image data voltage applied to the i-th pixel among the image data voltages based on the compared result.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: December 8, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jaehoon Lee, Kyoungho Lim, Seokha Hong
  • Patent number: 10854148
    Abstract: The present disclosure proposes a method and a system of controlling backlight driving. The method includes receiving an initial-pulse-width modulating signal and outputting a corresponding pulse-width modulating signal according to the initial-pulse-width modulating signal. The pulse-width modulating signal is used to control a corresponding LED string to illuminate. A cycle of each of the pulse-width modulating signals is the same with a predetermined phase difference.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: December 1, 2020
    Inventor: Xianming Zhang
  • Patent number: 10847082
    Abstract: A display device includes a gate driver for applying scan signals and including a plurality of gate driving circuit blocks, and a data driver for applying a data voltage to data lines, wherein the gate driving circuit blocks respectively output a carry signal to be transmitted to a first input terminal of a subsequent gate driving circuit block based on a signal applied to a first control node through a first input terminal and a carry clock signal input to a carry clock input terminal, output a scan signal to a first scan line based on the signal applied to the first control node and a scan clock signal input to a first scan clock input terminal, and output a scan signal to a second scan line based on the signal applied to the first control node and a scan clock signal input to a second scan clock input terminal.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: November 24, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventor: Jong Hee Kim
  • Patent number: 10839769
    Abstract: A driving module for a display device includes a first transistor, comprising a gate coupled to a first node, a drain coupled to an output end, and a source coupled to a first positive voltage source; a second transistor, comprising a gate coupled to a second node, a drain coupled to output end, and a source coupled to a first negative voltage source; and a voltage generating unit, coupled to an input end, a second positive voltage source and a second negative voltage source for generating a first voltage at first node and a second voltage at second node according to a control signal from input end; wherein voltage difference between a first positive voltage of first positive voltage source and first voltage is smaller than first threshold and voltage difference between a first negative voltage of first negative voltage source and second voltage is smaller than second threshold.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: November 17, 2020
    Assignee: Sitronix Technology Corp.
    Inventor: Hung-Yu Lu
  • Patent number: 10833065
    Abstract: An array substrate and a display panel are disclosed. The array substrate includes: a GOA unit; a plurality of gate lines, electrically connected to the GOA unit; and a static-conducting device, electrically connected between the plurality of gate lines, in such a way that the plurality of gate lines are electrically connected to each other. In the array substrate, the static-conducting device is arranged between the plurality of gate lines, in such a way that the plurality of gate lines are electrically connected to each other to together resist the ESD. In this way, the anti-electrostatic discharge ability of the array substrate is improved, and the product quality is also improved.
    Type: Grant
    Filed: October 21, 2017
    Date of Patent: November 10, 2020
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Guanghui Hong
  • Patent number: 10825411
    Abstract: This application provides a shutdown signal generation circuit and a display apparatus. The shutdown signal generation circuit includes: a first switch, where a first end of the first switch is electrically coupled to a first frequency, a control end of the first switch is electrically coupled to a first node, and a second end of the first switch is electrically coupled to a second node; and a second switch, wherein a first end of the second switch is electrically coupled to a second frequency, a control end of the second switch is electrically coupled to the first node, and a second end of the second switch is electrically coupled to the second node, where the first node is electrically coupled to a control signal, and the second node electrically outputs a gate shutdown signal.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: November 3, 2020
    Assignees: HKC Corporation Limited, Chongqing HKC Optoelectronics Technology Co., Ltd.
    Inventor: Xiaoyu Huang
  • Patent number: 10819914
    Abstract: An illuminance sensor detects a flicker with higher accuracy than in the related art. The illuminance sensor includes: a light receiving unit that receives light and outputs a current; a flicker measurement counter circuit that performs AD conversion on the current and outputs a first digital signal to a flicker measurement storage device; an illuminance measurement counter circuit that performs AD conversion on the current and outputs a second digital signal to an illuminance measurement storage device; and a flicker detection unit that detects a flicker by analyzing the first digital signal stored in the flicker measurement storage device. A cycle during which the first digital signal is output from the flicker measurement counter circuit is shorter than a cycle during which the second digital signal is output from the illuminance measurement counter circuit.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: October 27, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Kohji Hamaguchi, Takahiro Inoue
  • Patent number: 10818211
    Abstract: A display apparatus is disclosed. The display apparatus includes a display panel, a master timing controller embedded driver (TED), N slave TEDs and an inter-chip bus. N is a positive integer. The display panel has (N+1) display areas. The master TED is disposed corresponding to a first display area. The N slave TEDs are disposed corresponding to a second display area╦ťa (N+1)-th display area respectively and controlled by the master TED. The inter-chip bus includes a first wire and a second wire coupled between the master TED and N slave TEDs respectively and used for bi-directionally transmitting clock signal and data signal respectively.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: October 27, 2020
    Assignee: Raydium Semiconductor Corporation
    Inventors: Shang-Han Yu, Sung-Bo Chen, Chih-Chuan Huang
  • Patent number: 10818262
    Abstract: A display device includes a display panel, display drivers, an inspection signal output, judgement signal outputs included in the respective display drivers and through which judgement signals generated by the display drivers are output, signal inputs included in at least the display drivers except a most upstream one of the display drivers and through which the judgement signals and the inspection signals are input, switches located between the adjacent display drivers in an upstream and downstream direction to cascade the display drivers and each configured to switch points connected to the signal input of one of the display drivers on a downstream side between the judgement signal output of one of the display drivers on an upstream side and the inspection signal output, and a judgement unit connected at least to the judgment signal output of a most downstream one of the display drivers to receive the judgement signal.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: October 27, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Takashi Sasaki
  • Patent number: 10803837
    Abstract: An image processing apparatus including an image data processor unit is provided. The image data processor unit is configured to generate a plurality of partial output frames according to a plurality of input frames. With respect to one pixel in a display panel, each partial output frame among the partial output frames includes sub-pixel data corresponding to a part of sub-pixels in the pixel instead of sub-pixel data corresponding to all of the sub-pixels in the pixel. In addition, a display panel and a display apparatus are also provided.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: October 13, 2020
    Assignee: Novatek Microelectronics Corp.
    Inventors: Hsueh-Yen Yang, Ching-Pei Cheng
  • Patent number: 10803779
    Abstract: A gate driver on array (GOA) circuit unit, including: a scan portion and an emission portion. The scan portion includes: a first thin film transistor (TFT), a second TFT, a third TFT, a fourth TFT, a fifth TFT, a sixth TFT, a first capacitor, a turn-on signal end, a first clock signal end, a second clock signal end, a power supply end, and a first node. The emission includes: a seventh TFT, an eighth TFT, a ninth TFT, a tenth TFT, an eleventh TFT, a twelfth TFT, a thirteenth TFT, a fourteenth TFT, a fifteenth TFT, a sixteenth TFT, a second capacitor, a third capacitor, a fourth capacitor, a third clock signal end, a first controlling clock signal end, a second node, a third node, a fourth node, and a fifth node.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: October 13, 2020
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Jie Liu
  • Patent number: 10805057
    Abstract: Provided is an interface circuit that includes a circuitry that extracts a first signal, including a clock component, from a differential signal received from an external device through a transmission path. The circuitry extracts a second signal, including a clock component, from an in-phase signal received from the external device. The circuitry communicates with the external device through a pair of differential transmission paths included in the transmission path. The circuitry is notified by the external device of a connection state of the external device by a DC bias potential of at least one of the pair of differential transmission paths.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: October 13, 2020
    Assignee: SONY CORPORATION
    Inventors: Kazuaki Toba, Gen Ichimura
  • Patent number: 10803811
    Abstract: The present application provides a driver for driving a display panel. The driver includes a timing controller, and N cascaded source drivers, N being an integer equal to or larger than 2. The N source drivers are configured to receive sensing signals obtained by detecting characteristics of pixel units in the display panel, respectively. An n-th source driver of the N source drivers is configured to transmit the sensing signal received by the n-th source driver to the timing controller through all source drivers of the N source drivers after the n-th source driver as a signal transmission channel, where 1?n<N and n is an integer. The present application further provides a display apparatus and a method for generating a source driving signal.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: October 13, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lirong Wang, Fei Yang
  • Patent number: 10789911
    Abstract: Systems, apparatuses, and methods are described herein for phase locked multi-display synchronization. In a slave display device, a first tearing effect signal is received that indicates rendering of a first image frame portion of a first image frame by a master display device has at least been initiated. In response to receiving the first tearing effect signal, a second image frame portion of a first image frame is retrieved from a frame buffer and is rendered to a display screen of a slave display device. In response to rendering the retrieved second image frame portion, a second tearing effect signal is generated for receipt by a host device to trigger the host device to transmit a second image frame portion of a second image frame to the slave display device.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: September 29, 2020
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Wenfeng Liu, Kari Jussi Ropo
  • Patent number: 10789908
    Abstract: A refresh rate adjustment method and circuit, a display device, and a storage medium, which pertains to the field of display technologies. The method includes acquiring a current driving refresh rate of a driving apparatus; determining whether the driving refresh rate is less than a driving refresh rate threshold; in response to the driving refresh rate being less than the driving refresh rate threshold, adjusting a display refresh rate of a display device, so that an adjusted display refresh rate is P times the driving refresh rate, and the adjusted display refresh rate is greater than the driving refresh rate threshold, where P is an integer greater than one.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: September 29, 2020
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Hao Zhu, Xin Duan, Xibin Shao, Ming Chen, Jieqiong Wang, Yifang Chu, Chengqi Zhou
  • Patent number: 10770533
    Abstract: An organic light emitting diode display panel includes data lines arranged in a first direction; gate lines arranged in a second direction to cross the data lines; a driving voltage line arranged in the first direction; a reference voltage line arranged in the first direction; data pads respectively at ends of corresponding ones of the data lines; a driving voltage pad at an end of the driving voltage line; and a reference voltage pad at an end of the reference voltage line. A first distance is defined between the driving voltage pad and an adjacent data pad, a second distance is defined between adjacent ones of the data pads, and a third distance is defined between the reference voltage pad and an adjacent data pad. At least two of the first distance, the second distance, and the third distance are different from each other.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: September 8, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: ChongHun Park, Hooin Park, Jaeyi Choi
  • Patent number: 10762873
    Abstract: A driving circuit and an anti-interference method thereof are provided. The driving circuit includes a source driver. The source driver is configured to be controlled by a timing controller. The source driver is configured to adjust at least one of an operation frequency and a receiving bandwidth of a source driving circuit of the source driver when at least one of the timing controller and the source driver detects that an interference event occurs.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: September 1, 2020
    Assignee: Novatek Microelectronics Corp.
    Inventors: Jen-Chieh Hu, Chin-Hung Hsu
  • Patent number: 10748493
    Abstract: The present disclosure relates to a display device for driving virtual reality with low latency and compensating the reduced brightness. According to the present disclosure, a display device is provided, and the display device includes a timing controller for receiving a data signal and a timing signal from a host system, a data driving unit for receiving a drive signal from the timing controller, a gate driving unit for receiving a drive signal from the timing controller, a display panel having a plurality of sub-pixels and for displaying a video based on the signals received from the data driving unit and the gate driving unit, and a power supply unit for supplying power to the data driving unit, the gate driving unit, and the display panel; and the timing controller receives an address reset signal from the host system.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: August 18, 2020
    Assignee: LG Display Co., Ltd.
    Inventor: Dongwon Park
  • Patent number: 10741124
    Abstract: The present disclosure provides a pixel circuit, a display panel, and a display device. The pixel circuit includes: first and second scan signal input terminals; a data signal input terminal; a first power supply signal input terminal; a light-emitting control signal input terminal; a reference voltage input terminal; first to sixth transistors, a first capacitor, and a piezoresistor having a first electrode electrically connected to a first electrode plate of the first capacitor, and a second electrode electrically connected to a first electrode of the third transistor.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: August 11, 2020
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Zhiyong Xiong, Liyuan Liu, Liujing Fan
  • Patent number: 10726815
    Abstract: A display apparatus including a display panel, an image data processor unit and a display driver is provided. The image data processor unit is configured to generate a plurality of partial output frames according to a plurality of input frames. With respect to one pixel in the display panel, each partial output frame among the partial output frames includes a part, instead of all, of sub-pixel data to be displayed by the pixel. The display driver is coupled to the image data processor unit and a data signal input terminal of the display panel. In addition, a display panel is also provided.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: July 28, 2020
    Assignee: Novatek Microelectronics Corp.
    Inventors: Hsueh-Yen Yang, Ching-Pei Cheng
  • Patent number: 10727839
    Abstract: In generating a mask signal to be used when a clock signal embedded in an interface signal is recovered, the mask signal may be generated by compensating for a processing delay time occurring in a mask signal generation circuit, thereby reducing the inaccuracy of the mask signal due to the processing delay time.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: July 28, 2020
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Byung-Guk Kim, Hyun Kyu Jeon
  • Patent number: 10714039
    Abstract: At a previous stage prior to displaying an input image in a display region, a display device outputs, to a transmitting section, a first instruction to transmit a first data signal having a specific pattern with a phase difference from a clock signal set to a first phase difference; reads, from a receiving section, a first received data signal corresponding to a data signal received by the receiving section from the transmitting section having received the first instruction; performs, as receipt result determination, first determination based on the first data signal and the first received data signal as receipt result determination; and determines, based on a result of the first determination, a set phase difference corresponding to the phase difference from the clock signal employed in transmitting the data signal based on the input data.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: July 14, 2020
    Assignee: SAKAI DISPLAY PRODUCTS CORPORATION
    Inventor: Takashi Sasaki
  • Patent number: 10706497
    Abstract: A hardware boost method and a hardware boost system are provided. The hardware boost method includes: initializing a status table, wherein the status table includes multiple statuses, each of the statuses corresponds to a first action and a second action, and each of the statuses includes FPS information; and in each episode: determining that a system status belongs to a first status among the statuses; executing one of the first action and the second action according to a value corresponding to the first status and the first action and a value corresponding to the first status and the second action to enter a second status among the statuses and obtain a reward value; and refreshing the value corresponding to the first status and the one of the first action and the second action according to the reward value.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: July 7, 2020
    Assignee: Wistron Corporation
    Inventors: Li-Yu Yang, Fang-Wen Liao, Ping-Hung Chen
  • Patent number: 10699659
    Abstract: A gate driver on array (GOA) circuit includes cascaded GOA unit circuits. An nth stage GOA unit circuit includes a clock signal source, a constant voltage supply, a pull-up control circuit, a pull-up circuit, a downlink circuit, a pull-down circuit, a pull-down maintaining circuit, a bootstrap capacitor and a conducting control circuit. An output terminal of the pull-up control circuit is electrically connected to the pull-up circuit, the downlink circuit, the pull-down circuit, the pull-down maintaining circuit, and the bootstrap capacitor. The constant voltage supply is electrically connected to the pull-down maintaining circuit and the pull-down circuit. The clock signal source is electrically connected to the pull-up circuit, the downlink circuit, and the conducting control circuit. The conducting control circuit is electrically connected to the pull-down maintaining circuit.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: June 30, 2020
    Assignee: Shenzhen China Star Optoelectronics Technology Co. Ltd.
    Inventor: Xiangyang Xu
  • Patent number: 10699618
    Abstract: An integrated circuit for driving a display panel and an anti-interference method are provided. The integrated circuit includes a source driving circuit and an anti-interference circuit. The source driving circuit includes a receiving circuit configured to receive an input signal including image data and process the input signal based on at least one operation parameter to generate output data. The anti-interference circuit is coupled to the receiving circuit. The anti-interference circuit determines whether an interference event occurs to the input signal based on the input signal or the output data to obtain a determination result and determines whether to adjust the at least one operation parameter of the receiving circuit according to the determination result.
    Type: Grant
    Filed: December 22, 2018
    Date of Patent: June 30, 2020
    Assignee: Novatek Microelectronics Corp.
    Inventors: Chih-Hao Huang, Wei-Sheng Tseng, Yao-Hung Kuo, Hao-Wei Hung
  • Patent number: 10699666
    Abstract: Disclosed are an image display device and an image processing method thereof. A signal processing method of the image display device according to the present invention is a signal processing method of an image display device configured to receive an image having a varied vertical synchronization signal, including detecting an input synchronization signal using an input image clock, extracting an input vertical synchronization signal from the input synchronization signal, delaying the input vertical synchronization signal by a reference value of an output clock, continuously tracking a falling region of the delayed input vertical synchronization signal, and finally generating an output synchronization signal in which a vertical front porch is varied.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: June 30, 2020
    Assignee: LG ELECTRONICS INC.
    Inventors: Kyounghoon Jang, Kwangyeon Rhee, Byungtae Choi
  • Patent number: 10692440
    Abstract: A pixel includes an organic light emitting diode (OLED), a first transistor connected to a driver and a first node, having a gate connected to a control line, a second transistor between to the first node and a second node, having a gate connected to a third node, a third transistor connected to an anode of the OLED, having a gate connected to the control line, a fourth transistor between the first node and a data line, having a gate connected to a scan line, a fifth transistor between the second and third nodes, having a gate connected to the scan line, a sixth transistor between an initializing line and the anode, having a gate connected to the scan line, a seventh transistor between the initializing line and the third node, having a gate connected to another scan line, and a storage capacitor between the driver and the third node.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: June 23, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seung Hee Kuk, Si Woo Kim, Won Seok Kim, Jung Moon Kim, Yeong Shin Jang
  • Patent number: 10692431
    Abstract: A gate driver includes a plurality of stages. A present stage among the plurality of stages is configured to receive a clock signal, a scan signal of a previous stage among the plurality of stages that is before the present stage, a first initialization voltage and a second initialization voltage different from the first initialization voltage and to generate a scan signal of the present stage and a initialization signal of the present stage based on the clock signal, the scan signal of the previous stage, the first initialization voltage and the second initialization voltage. The initialization signal of the present stage is varied between the first initialization voltage and the second initialization voltage according to time.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: June 23, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Suhyeong Park
  • Patent number: 10679574
    Abstract: A LCD device of display panels includes n-bit (n<m) driving first display panel that displays first image based on m-bit input image data, n-bit driving second display panel that displays second image based on the m-bit input image data, and image processor including first gradation converter that converts gradation of the m-bit input image data into n-bit gradation, second gradation converter that converts gradation of the m-bit input image data into m1-bit (m1?m) gradation, and extension processor that performs extension processing of extending gradation expression with the n bits on the input image data converted into the m1-bit gradation. The n-bit driving first display panel displays the first image based on the n-bit input image data, and the n-bit driving second display panel displays the second image based on the n-bit input image data subjected to the extension processing.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: June 9, 2020
    Assignee: Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Hideyuki Nakanishi, Toshikazu Koudo, Katsuhiro Kikuchi
  • Patent number: 10679534
    Abstract: A display driving device is disclosed which includes a source driver that supplies voltages to source lines connected to pixels, detects a slew time of the voltages of the source lines, and outputs the slew time, and a timing controller that receives the slew time from the source driver and updates a way for the source driver to control the voltages depending on the slew time.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: June 9, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: KeunHo Ryu, Byungkoan Kim, Jong-Hee Na, Yong-Yun Park, Seunghwan Baek, MyeongJun Chae, YoungMin Choi