Regulating Means Patents (Class 345/212)
  • Patent number: 10818234
    Abstract: A current sensing device and an organic light emitting display device including the same are disclosed. The current sensing device includes a sensing unit selectively connected to a pixel and a reference current source through a sensing line. The sensing unit includes a plurality of resistors connected to a first node and setting a divided voltage according to a pixel current input from the pixel and a reference current input from the reference current source, a first MOS transistor connected between the first node and a second node, a second MOS transistor diode-connected to the second node, and a comparator having an inverting input terminal connected to a third node, a non-inverting input terminal connected to a fourth node, comparing a reference voltage charged at the third node when the reference current is input and a pixel voltage charged at the fourth node when the pixel current is input, and outputting a comparison result.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: October 27, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Eunji Song, Kimin Son
  • Patent number: 10809848
    Abstract: A touch-control display panel, driving method, and a touch-control display device are provided. The touch-control display panel includes: a display area including a plurality of pixels; a non-display area; a first substrate; and a second substrate opposing the first substrate. A portion of the first substrate in the first region includes a pixel electrode layer and a first electrode layer. The first electrode layer is located on a side of the pixel electrode layer away from the second substrate and includes a plurality of first electrodes. The pixel electrode layer includes a plurality of pixel electrodes. A touch-control electrode layer is located on a side of the second substrate toward the first substrate and includes a plurality of touch-control electrodes. Along a direction perpendicular to the touch-control display panel, each touch-control electrode of the plurality of the touch-control electrode overlaps with and connects with one or more first electrode of the plurality of the first electrodes.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: October 20, 2020
    Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Xiangjian Kong, Feng Qin, Jine Liu, Lei Wang, Chunmei Gao, Qiongqin Mao
  • Patent number: 10810962
    Abstract: A shift register circuit that controls back gate voltage of a transistor with a simple configuration and at a low cost, and a display panel. In the shift register circuit, shift registers include: an output circuit, a charge and discharge circuit, a first power supply terminal, and at least one back gate voltage generation circuit. The output circuit or the charge and discharge circuit includes at least one transistor. The back gate voltage generation circuit includes a back gate node. The back gate node is connected to the back gate electrode of the transistor. The back gate voltage generation circuit changes a voltage of the back gate node according to a voltage of a gate electrode of the transistor. The back gate voltage generation circuit is supplied with a drive voltage from the first power supply terminal.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: October 20, 2020
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takeshi Ono, Masafumi Agari, Toshiaki Fujino, Shinji Kawabuchi
  • Patent number: 10810922
    Abstract: A display driver comprises a digital-to-analog converter (DAC) configured to output a grayscale voltage corresponding to an image data. The display driver further comprises a source amplifier configured to drive a source line of a display panel, and a buffer connected between the DAC and the source amplifier. The buffer comprises a first NMOS transistor having a gate supplied with the grayscale voltage and a drain connected to a power supply. The buffer is configured to supply a current depending on a first current flowing through the first NMOS transistor to an input terminal of the source amplifier.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: October 20, 2020
    Assignee: SYNAPTICS INCORPORATED
    Inventor: Yutaka Saeki
  • Patent number: 10803807
    Abstract: A display device includes a display panel having a plurality of first and second scan lines, a plurality of data lines, a plurality of sensing lines, and a plurality of pixels, a data driver to apply a reference data voltage to the data lines and change the voltage level of the reference data voltage based on a compensating data, a scan driver to apply a first scan voltage to the first scan lines and a second scan voltage to the second scan lines, a timing controller to generate control signals that control the data driver and the scan driver, and a charging ratio compensator to sense a target voltage charged in a first pixel of the plurality of pixels to which the reference data voltage is provided during a predetermined target time, sense a charging voltage charged in the first pixel to which the reference data voltage is provided during a charging time, and output the compensating data that changes a voltage level of the reference data voltage applied to the pixel during the charging time until the differe
    Type: Grant
    Filed: May 2, 2019
    Date of Patent: October 13, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae Hoon Lee, Seokha Hong
  • Patent number: 10798318
    Abstract: A solid-state imaging element includes a first substrate including a pixel circuit having a pixel array unit, and a second substrate. The second substrate includes signal processing circuits to process signals from the pixel array unit, and a wiring layer with wiring regions electrically connected to respective ones of the signal processing circuits. Each signal processing circuit has a same circuit pattern. The second substrate and the first substrate are stacked. A wiring pattern of each wiring region is different.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: October 6, 2020
    Assignee: Sony Corporation
    Inventor: Kunihiko Izuhara
  • Patent number: 10796640
    Abstract: A pixel circuit is disclosed that includes a data write circuit, a reset circuit, a first storage circuit, a second storage circuit, a light-emitting control circuit, a light-emitting device and a drive transistor. The data write circuit supplies a data voltage to a first node in response to a scan signal. The reset circuit supplies a reference voltage to a second node in response to the scan signal. The first storage circuit is connected between the second node and the third node. The second storage circuit is connected between the first power supply terminal and the third node. Also disclosed are a display panel, a display apparatus, and a method of driving the pixel circuit.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: October 6, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Haigang Qing
  • Patent number: 10796632
    Abstract: An organic light emitting display device comprising: a source device configured to output image data; and a sink device configured to perform a displaying operation based on the image data, wherein the source device is configured to change a frame rate of an image frame composing the image data while the displaying operation is performed, wherein the sink device is configured to change a frame rate of a panel driving frame for the displaying operation as the frame rate of the image frame is changed, and wherein the source device is configured to change the frame rate of the image frame while satisfying a condition in which an emission duty ratio of the panel driving frame is not changed.
    Type: Grant
    Filed: April 2, 2018
    Date of Patent: October 6, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jeongmin Sung, Woo-Chul Kim
  • Patent number: 10789904
    Abstract: A method and a device for driving a display panel, and a display device are provided. The method includes: dividing the display panel into at least two display regions, where each display region corresponds to a timing controller, and the timing controller is configured to control the corresponding display region to display; dividing each display region into multiple detection blocks; detecting whether a defect block exists in each display region; and enabling, when the defect block exists in only one display region, by the timing controller corresponding to the only one display region, a pattern detection function, and enabling, when the defect block exists in each of more than one display region, by the timing controllers corresponding to the more than one display region simultaneously, the pattern detection function.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: September 29, 2020
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yuanyuan Liu, Shuai Liu, Xuanxuan Qiao, Xianfeng Yuan, Hongjun Wang, Kangxi Chen, Min Wang, Min Zhong
  • Patent number: 10789889
    Abstract: A source driver module, a display device and a method for driving a display panel are provided. The method for driving a display panel is applicable to the source driver module, which includes a source driver circuit, a first switch coupled between the source driver circuit and a first end of a first data line, and a second switch coupled between the source driver circuit and a second end of the first data line. The method for driving the display panel includes: when the display panel displays a first image, the source driver circuit outputs a first voltage signal to the first end of the first data line through the first switch, and when the display panel displays a second image after displaying the first image, the source driver circuit outputs a second voltage signal to the second end of the first data line through the second switch.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: September 29, 2020
    Assignee: Raydium Semiconductor Corporation
    Inventors: Chi-Hsiang Oulee, Tzong-Yau Ku, Jun-Ren Shih
  • Patent number: 10788718
    Abstract: A display device includes a first substrate and a second substrate facing the first substrate. A plurality of spacers is disposed between the first and second substrates. The first substrate includes a plurality of gate lines extending in a row direction, a plurality of data lines extending in a column direction, and a plurality of pixel electrodes. A first insulator covers the plurality of gate lines. A semiconductor layer is formed on the first insulator. A common electrode is formed on the second insulator and faces the plurality of pixel electrodes. A plurality of common lines extend along the plurality of data lines and supply common voltage to the common electrode. A plurality of seat regions are formed in which at least one of the plurality of gate lines, the semiconductor layer, and one of the plurality of data lines overlap to face the plurality of spacers.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: September 29, 2020
    Assignee: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
    Inventor: Teruhisa Nakagawa
  • Patent number: 10782814
    Abstract: A touch display panel includes a pixel array, a touch module, and a multiplexer circuit. The pixel array includes a plurality of pixels, a plurality of gate lines, and a plurality of source lines. The pixels are electrically coupled to the source lines and the gate lines. The touch module and the pixel array are overlapped. The multiplexer circuit is coupled between all of the source lines and a source driver and has a plurality of multiplexers. The multiplexers are respectively coupled to n source lines and respectively include a plurality of switches and a bypass trace. The switches are respectively coupled between the first source line to the (n?1)th source line of the n source lines and the source drivers. The bypass trace is coupled between the nth source line of the n source lines and the source driver.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: September 22, 2020
    Assignee: Au Optronics Corporation
    Inventors: Rong-Fu Lin, Chun-Wei Chang, Shu-Hao Huang, Sung-Yu Su, Jie-Chuan Huang, Yun-I Liu
  • Patent number: 10778004
    Abstract: The present disclosure provides a protection circuit and a display panel. The protection circuit comprises: a power supply circuit for outputting a first voltage; an overvoltage protection circuit connected to the power supply circuit for feedback regulation of the first voltage, such that a first protection voltage outputted by the overvoltage protection circuit is maintained within a preset range; and an output regulator circuit connected to the overvoltage protection circuit for regulated output of a second protection voltage. Through the above embodiments, the present disclosure can always stabilize the outputted voltages within a preset range to achieve the purpose of providing a stable voltage for the display panel, thereby realizing accurate and rapid overvoltage protection of the display panel.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: September 15, 2020
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Wen Wen
  • Patent number: 10777145
    Abstract: A demultiplexer includes: a first transistor connected between a data input line and a first data output line; a second transistor connected between the data input line and a second data output line; and an initializing transistor configured to be simultaneously turned on with the first transistor to transmit an initializing voltage to the second data output line.
    Type: Grant
    Filed: August 1, 2016
    Date of Patent: September 15, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seung Kyu Lee, Ji Su Na
  • Patent number: 10771773
    Abstract: A head-mounted display device including a display system and a light modulator is provided. The display system is configured to selectively display a first content to be visually recognized as being superimposed on a scenery of a surrounding environment, or not display the first content. The light modulator, positioned between the display system and the surrounding environment, includes an array of pixels, wherein a portion of the pixels is configured to modulate light to present a display of a second content, while the rest of the pixels are configured to be substantially transparent to light.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: September 8, 2020
    Assignee: HTC Corporation
    Inventors: Bo-Wen Xiao, Fu-Cheng Fan, Chun-Ta Lin, Wei-Jen Chang
  • Patent number: 10762813
    Abstract: The present disclosure provides a method and a device for detecting an external compensation line and a display module. The method includes steps of: within a resetting time period of each detection stage, applying a resetting voltage to the external compensation line and entering a detection time period after a resetting duration; and within the detection time period of each detection stage, controlling the external compensation line to be in a floating state, applying a data voltage to a data line, applying a power source voltage to a power source voltage input end, applying a data write-in control voltage to a data write-in control end, applying an external compensation control voltage to an external compensation control end, detecting a voltage across the external compensation line after a detection duration, and determining whether or not there is a short circuit for the external compensation line in accordance with the voltage across the external compensation line.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: September 1, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Can Yuan
  • Patent number: 10762844
    Abstract: The present application provides a pixel driving circuit, including a driving sub-circuit, a compensation sub-circuit, a first switching sub-circuit, and a second switching sub-circuit.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: September 1, 2020
    Assignee: BOE TECHNOLOGY GROUP., LTD.
    Inventors: Yongqian Li, Pan Xu, Quanhu Li
  • Patent number: 10762840
    Abstract: A pixel circuit and a driving method thereof, a display device are provided. The pixel circuit includes: a first thin film transistor, a second thin film transistor, a third thin film transistor, a fourth thin film transistor, a fifth thin film transistor, a sixth thin film transistor, a seventh thin film transistor, an eighth thin film transistor, a ninth thin film transistor, a first capacitor, a second capacitor, and a light emitting diode. In the pixel circuit provided by the embodiment of the application, a compensation voltage provided by a compensation voltage signal line can partially compensate a supply voltage during an emission stage of the pixel circuit.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: September 1, 2020
    Assignee: KunShan Go-Visionox Opto-Electronics Co., Ltd.
    Inventor: Zhiyi Zhou
  • Patent number: 10762835
    Abstract: The present disclosure a display device includes: a display panel including subpixels displaying an image; and a life controller controlling at least any one of a compensation rate and a delay rate of the subpixels on the basis of usage data obtained by calculating usage of the display panel and life data of the subpixels.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: September 1, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Jintaek Choi, Kipyo Hong, Jooyoung An
  • Patent number: 10755783
    Abstract: Numerous embodiments are disclosed for providing temperature compensation and leakage compensation for an analog neuromorphic memory system used in a deep learning neural network. The embodiments for providing temperature compensation implement discreet or continuous adaptive slope compensation and renormalization for devices, reference memory cells, or selected memory cells in the memory system. The embodiments for providing leakage compensation within a memory cell in the memory system implement adaptive erase gate coupling or the application of a negative bias on a control gate terminal, a negative bias on a word line terminal, or a bias on a source line terminal.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: August 25, 2020
    Assignee: SILICON STORAGE TECHNOLOGY
    Inventors: Hieu Van Tran, Steven Lemke, Nhan Do, Vipin Tiwari, Mark Reiten
  • Patent number: 10755636
    Abstract: The present disclosure discloses a pixel circuit and a driving method thereof, a display substrate and a display device, the pixel circuit includes: an initialization sub-circuit, a writing compensation sub-circuit, a light-emitting enabling sub-circuit, a light-emitting device, and a driving sub-circuit, the light-emitting enabling sub-circuit is configured to couple the driving sub-circuit to the light-emitting device under control of an enabling signal terminal. The initialization sub-circuit is configured to input a voltage of an initial voltage terminal to a gate of a driving transistor in the driving sub-circuit under control of a reset signal terminal to initialize the driving sub-circuit. The writing compensation sub-circuit is configured to input, under control of a scanning signal terminal, a data voltage output from a data signal terminal to the driving sub-circuit to perform data compensation on the driving sub-circuit.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: August 25, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chengchung Yang, Xueling Gao, Kuanjun Peng
  • Patent number: 10755646
    Abstract: A driving method of an organic light-emitting display device, the display device includes a plurality of sub-pixels, each of the sub-pixels includes a driving transistor, an organic light-emitting diode and a sense line connected to the driving transistor and the organic light-emitting diode, the method includes: detecting threshold voltages of driving transistors of the sub-pixels or turn-on voltages of organic light-emitting diodes of the sub-pixels by sense lines; calculating a first driving voltage of a data driving circuit or a second driving voltage applied to anodes of the organic light-emitting diodes according to all detected threshold voltages or detected turn-on voltages respectively; and based on the first driving voltage or the second driving voltage, applying data driving voltages and supply voltages to the sub-pixels.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: August 25, 2020
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Fei Yang, Song Meng, Yue Wu, Yu Wang
  • Patent number: 10748480
    Abstract: The present disclosure provides a method of compensating AMOLED pixel difference, including the steps of: fitting the driving voltage value and the driving current value of the reference pixel. Acquiring the threshold voltage, the coefficient and the power value corresponding to the reference pixel according to the fitting result. Acquiring the threshold change of the threshold voltage corresponding to the other pixel relative to the threshold voltage corresponding to the reference pixel and the coefficient ratio of the coefficient corresponding to the other pixel relative to the coefficient corresponding to the reference pixel. Compensating the other pixel difference according to the threshold change, the coefficient ratio and the power value. The disclosure makes the driving current under the same driving voltage be consistent, improves the uniformity of the light-emitting intensity of the AMOLED and enhances the display quality of the AMOLED display device.
    Type: Grant
    Filed: November 23, 2017
    Date of Patent: August 18, 2020
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Yuchao Zeng, Pengfei Liang
  • Patent number: 10737105
    Abstract: Several defibrillators, defibrillator architectures, defibrillator components and methods of operating defibrillators are described. In one aspect, a modular defibrillator architecture is described. A base unit provides a fully functional defibrillator. The functionality of the base unit can be supplemented by attaching an interface unit to the base unit or by connecting a smartphone the base unit. Such devices provide connectivity as well as a screen for displaying supplementary graphics and/or videos which are useful to support both emergency and maintenance & monitoring activities. In some embodiments a battery pack may also or alternatively be coupled to the base unit to prolong the unit's shelf life before recharging or replacement of its batteries is required. If necessary the base unit can be powered from a connected external device such as a mobile communication device.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: August 11, 2020
    Assignee: Avive Solutions, Inc.
    Inventors: Gordon Moseley P. Andrews, Rory M. Beyer, David Picco
  • Patent number: 10733937
    Abstract: An organic light-emitting diode (OLED) display can include a display panel including sub-pixels; a deterioration sensing unit configured to sense a deterioration state of the display panel; a power supply configured to output a high voltage for driving the sub-pixels; and a timing controller configured to: receive a deterioration sensing result including information on the deterioration state of the display panel from the deterioration sensing unit, continuously vary the high voltage based on the deterioration sensing result received from the deterioration sensing unit, and provide the varied high voltage to the sub-pixels.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: August 4, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Yong-Chul Kwon, Dong-Won Park, Dong-Woo Lee, Joon-Hee Lee
  • Patent number: 10726796
    Abstract: A backlight drive circuit comprises a plurality of light-emitting units arrayed in a matrix manner and at least first transistors and second transistors, wherein the light-emitting units in each row are connected to a scan line, the light-emitting units in each column are connected to a data line, at least part of the scan lines and/or the data lines are connected to first terminals of the first transistors, at least part of the scan lines and/or the data lines are connected to first terminals of the second transistors, second terminals of the first transistors and the second transistors are respectively connected to drive chip pins, control terminals of the first transistors and the second transistors are connected to a first control line.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: July 28, 2020
    Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd.
    Inventor: Weijun Tian
  • Patent number: 10726805
    Abstract: A display driving apparatus applied to a panel is disclosed. The panel displays a first image with a first refresh rate. A first refresh cycle corresponding to the first refresh rate includes a refresh period and at least one non-refresh period. The display driving apparatus includes a real-time determination module and a data processing module. The real-time determination module is coupled to the panel and used to immediately determine whether the panel wants to replace the originally displayed first image with a second image during the first refresh cycle. The data processing module is coupled to the real-time determination module and the panel. If a determination result of the real-time determination module is yes, the data processing module immediately controls the panel to start to display the second image at a first time during the first refresh cycle.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: July 28, 2020
    Assignee: Raydium Semiconductor Corporation
    Inventors: Chih Chuan Huang, Yu-Yuan Chang, Wen-Fa Hsu
  • Patent number: 10726791
    Abstract: An electro-optical device includes a display unit provided with a first pixel circuit connected to a first data line, a second pixel circuit connected to a second data line, a third pixel circuit connected to a third data line, and a fourth pixel circuit connected to a fourth data line, a first data line driving circuit configured to supply a gradation signal to the first data line and the second data line, and a second data line driving circuit configured to supply a gradation signal to the third data line and the fourth data line. The first data line driving circuit and the second data line driving circuit are arranged to sandwich the display unit in a wiring direction of the first data line. A layout of the first data line driving circuit and a layout of the second data line driving circuit are in line symmetry.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: July 28, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Tsuyoshi Tamura
  • Patent number: 10720107
    Abstract: A display device having a frame period including reset, compensation, relay, emission, and initialization periods. Each pixel includes: an organic light emitting diode having an anode coupled to a second node and a electrode coupled to a second power source; a first transistor between a first power source and the second node, and a gate electrode coupled to a first node; a second transistor between the first node and the second node; a third transistor between the first power source and a third node; a fourth transistor between a fourth node and the third node; a fifth transistor between a data line and the fourth node; a sixth transistor between a third power source and the second node; a first capacitor between the third node and the first node; and a second capacitor coupled the fourth node and the third power source.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: July 21, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong Woo Kim, Bo Yong Chung, Yeon Kyung Kim, Chong Chul Chai
  • Patent number: 10712882
    Abstract: An operational input device includes an operational portion located on a display screen of a display panel and a controller that determines whether or not the operational portion is being operated and controls display of functional information associated with the operational portion based on the determination. The controller displays the functional information on a first region of the display screen defined inside the operational portion when the operational portion is not being operated. The controller displays the functional information on a second region of the display screen defined outside the operational portion when the operational portion is being operated.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: July 14, 2020
    Assignees: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO, TRAM, INC.
    Inventors: Shintaro Mizuno, Hidetaka Nomura
  • Patent number: 10714005
    Abstract: The present disclosure relates to a pixel compensation circuit and a method of driving the same, a display panel, and a display device. A pixel compensation circuit includes: a control sub-circuit, a write sub-circuit, a driving sub-circuit, and a light emitting sub-circuit, wherein the write sub-circuit is configured to, under the control of a scan signal terminal, transmit a data signal at a data signal terminal to the control sub-circuit and transmit a signal at a reference voltage signal terminal to the control sub-circuit; the control sub-circuit is configured to, under the control of a power control signal terminal, transmit a signal at a first power terminal to the driving sub-circuit, and under the combined action of a conduction control signal terminal and the power control signal terminal, control the driving sub-circuit to perform threshold compensation, and control the driving sub-circuit to generate a driving current to drive the light emitting sub-circuit to emit light.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: July 14, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Jie Ling, Wenjian Wang, Douqing Zhang
  • Patent number: 10712805
    Abstract: In one or more embodiments, one or more systems, methods, and/or processes may determine if a user is in contact with an information handling system. If the user is not in contact with the information handling system, the information handling system may utilize a thermal profile. If the user is in contact with the information handling system, it may be determined if the user is in contact with a first display of multiple displays of the information handling system. If the user is in contact with the first display, processing of information may be migrated from a component associated with the first display to a component associated with a second display of the multiple displays. If the user is not in contact with the first display, processing of the information may be migrated from the component associated with the second display to the component associated with the first display.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: July 14, 2020
    Assignee: Dell Products L.P.
    Inventors: Joohyun Woo, Travis Christian North, Deeder M. Aurongzeb
  • Patent number: 10706789
    Abstract: A pixel driving circuit, a driving method thereof, and a display device are provided. According to the pixel driving circuit, a data voltage is provided to a first electrode of a driving transistor; a storage sub-circuit is charged or discharged; a first voltage signal from a first voltage terminal is provided to a control electrode of the driving transistor, and a second voltage signal from a second voltage terminal or a third voltage signal from a third voltage terminal is provided to a first node; the data voltage and a threshold voltage of the driving transistor are written to the control electrode of the driving transistor, to turn on a second electrode of the driving transistor and the third voltage terminal, to control a light-emitting element to emit light.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: July 7, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Lei Hua, Jie Ling, Donghui Wang
  • Patent number: 10705591
    Abstract: A system for aggregated electronic device power management includes an aggregated power management arbitrator configured to collect activity information from one or more electronic devices regarding the use of a type of hardware component on the electronic devices. The aggregated power management arbitrator selects a timeout period for transmitting to one of the one or more electronic devices to define a minimum amount of time before the hardware component is transitioned to a lower-power state. The aggregated power management arbitrator may determine usage patterns for one of the electronic devices based on the collected activity information and the applications executing on the electronic device. A timeout period may be adjusted based on the determined usage pattern to improve efficiency of the power management of the electronic device.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: July 7, 2020
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Harish Srinivasan, Robert C. Combs
  • Patent number: 10699604
    Abstract: A system and method for removable or semi-permanent installation of a TOLED display are disclosed. In one embodiment, the system includes a TOLED display that includes a TOLED panel coupled to a cover glass. The system further includes a top hinge assembly and a bottom hinge assembly used to rotatably couple the TOLED display to a support structure to facilitate rotation of the TOLED display to different positions and to provide relatively easy removal of the TOLED assembly.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: June 30, 2020
    Assignee: LUSID, LLC
    Inventors: Rodrigo Mier Hicks, Kevin Kim
  • Patent number: 10698521
    Abstract: The present application provides an in-cell touch display panel, a driving method thereof, and a display device. At least two sub-pixels are a sub-pixel group, cathode layers of different sub-pixel groups are independent of each other, which is equivalent to that the cathode layer set as a whole surface in the prior art is segmented, one sub-pixel group corresponds to one segmented cathode layer, cathode layers of respective sub-pixel groups are connected through conductive lines to the driver chip, so that the cathode layer is reused as a self-capacitive touch control electrode, the driver chip detects a capacitance variation of the cathode layer through the conductive line corresponding thereto to determine a touch location, thus achieving the touch control function.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: June 30, 2020
    Assignees: BOE Technology Group Co., Ltd., Beijing BOE Optoelectronics Technology Co., Ltd.
    Inventors: Shengji Yang, Xue Dong, Hailin Xue, Haisheng Wang, Xiaochuan Chen, Xi Chen, Jianyun Xie, Hongjuan Liu, Yingming Liu, Weijie Zhao, Jiantao Liu
  • Patent number: 10692451
    Abstract: A liquid crystal controller is provided for a liquid crystal panel having a plurality of pixels, each of which includes a memory element and a display element. The memory element is configured to hold electric potential depending on an image signal and is configured to change the held electric potential based on activation of an enable signal. The display element is configured to be applied voltage depending on the electric potential which the memory element holds. The liquid crystal controller is configured to: hold off outputting the enable signal, for a period th before polarity of AC voltage applied to the display element is inverted and a period (tr+ts) after the polarity of the AC voltage is inverted; and hold off inversion of the polarity of the AC voltage, for an output period of the enable signal and the period th after the output period.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: June 23, 2020
    Assignee: CASIO COMPUTER CO., LTD.
    Inventors: Takahiro Ono, Fumiaki Ochiai
  • Patent number: 10678101
    Abstract: Provided is a liquid crystal grating including: a first substrate; a second substrate opposite to the first substrate; a liquid crystal layer between the first substrate and the second substrate; a first electrode structure on the first substrate; and a second electrode structure on the second substrate. The first electrode structure and the second electrode structure are configured to receive control signals, the control signal including a first set of control signals and a second set of control signals; to cause the liquid crystal grating to have a first grating pitch in response to the first set of control signals; and to cause the liquid crystal grating to have a second grating pitch in response to the second set of control signals, the second grating pitch being different from the first grating pitch.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: June 9, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Yanchen Li, Yue Li, Jian Wang, Yu Zhao, Wenjun Xiao
  • Patent number: 10679557
    Abstract: In some examples, an electronic device includes a display panel comprising pixels, and a controller to receive an indication responsive to a user selection of a control element adjustable between settings corresponding to different display quality levels, and in response to the received indication, adjust a frequency of manipulation of the pixels to compensate for deterioration of the pixels.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: June 9, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Syed S. Azam, Thong Thai, Mike Provencher, Rahul V. Lakdawala
  • Patent number: 10672322
    Abstract: A display apparatus includes a first processor, a second processor and a display. The second processor has higher processing capability than the first processor. The display performs a display operation based on a control of the first processor. The second processor is intermittently activated to generate data relating to a display image to be rendered on the display in response to a predetermined command sent from the first processor. The first processor reads the data relating to the display image generated by the second processor and renders the display image of the data on the display.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: June 2, 2020
    Assignee: CASIO COMPUTER CO., LTD.
    Inventors: Tatsuya Sekitsuka, Naoto Toda
  • Patent number: 10665198
    Abstract: A display apparatus includes a display panel including a plurality of pixels, a gate driver generating a plurality of gate signals using a gate-on voltage and a gate-off voltage and providing the gate signals to the pixels, a data driver providing data voltages to the pixels, a timing controller controlling an operation timing of the gate driver and the data driver, a voltage generator providing the gate-on voltage and the gate-off voltage to the gate driver, and a timer measuring an operation time and providing the measured operation time to the timing controller. The timing controller controls the voltage generator such that a level of the gate-on voltage is controlled depending on the operation time and the level of the gate-on voltage is controlled depending on a magnitude of the gate-on voltage in a different way from a way to control depending on the operation time and the temperature.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: May 26, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Kyung-hun Lee
  • Patent number: 10665201
    Abstract: An object of an embodiment of the present invention is to suppress the occurrence of an afterimage on a display screen. In a period (A1) within a single frame period, a gate driver outputs a gate voltage (Vgh) to a gate line (GL1), and in a period (B1) coming after the period (A1) within the single frame period and also longer than the period (A1), the gate driver outputs the gate voltage (Vgh) to the gate line (GL1). In both the period (A1) and the period (B1), a source driver outputs a plurality of unchanged source voltages expressing information to be displayed by one row of pixels corresponding to the gate line (GL1) to a plurality of source lines.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: May 26, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Masakatsu Tominaga
  • Patent number: 10657856
    Abstract: Methods, apparatus, systems and articles of manufacture of a photosensor fusion system for lens detection are disclosed herein. An example apparatus includes a projector, a photosensor having a filter and a lens detector to compare an output from the photosensor to a threshold, and a projector controller to selectively enable or disable the projector based on the comparison between the output from the photosensor and the threshold.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: May 19, 2020
    Assignee: North Inc.
    Inventors: Gatien Cosendey, Nicolas Abele
  • Patent number: 10657911
    Abstract: Provided is a vertical alignment liquid crystal display, comprising a plurality of data lines and a plurality of scan lines, wherein the data lines and the scan lines intersect to form a plurality of pixel regions, and each pixel region is surrounded by two adjacent data lines and two adjacent scan lines; wherein each pixel region comprises a switching thin film transistor and a sub pixel, and a gate and a drain of the switching thin film transistor are respectively connected to the scan line and the data line, and a source of the switching thin film transistor is connected to the sub pixel; in two adjacent pixel regions in the same row, a first capacitor is connected in series between the sources of the two switching thin film transistors, and the source of each of the switching thin film transistors is connected to only one of the first capacitors.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: May 19, 2020
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Sikun Hao
  • Patent number: 10657878
    Abstract: A display device includes a display panel, pixels on the display panel, data and gate drivers, a timing controller which applies control signals respectively to the data and gate drivers, and a power management integrated circuit (“PMIC”) which applies a driving voltage to the data and gate drivers. The timing controller detects an operational condition of the display panel and selects one of stored power setting values to output the selected one of the power setting values to the PMIC. The PMIC includes, first and second storage banks, a controller which receives the power setting value from the timing controller, stores the power setting value in one of the first and second storage banks, and calls the stored power setting value to determine the driving voltage, and a power generator which applies the driving voltage based on the driving voltage determined by the controller.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: May 19, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yanguk Nam, Jongjae Lee, Sujin Kim, Daesik Lee, Junki Hong, Heejeong Seo
  • Patent number: 10650743
    Abstract: Disclosed is a method for driving a pixel circuit. The method includes steps of obtaining an actual threshold voltage and an actual current-to-voltage conversion factor of a driving thin film transistor as well as actual luminous efficiency of an organic light emitting diode in sequence; and calculating a compensation data signal inputted to a source of a switching thin film transistor based on the obtained actual threshold voltage and actual current-to-voltage conversion factor of the driving thin film transistor and the obtained actual luminous efficiency of the organic light emitting diode.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: May 12, 2020
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Yuchao Zeng, Pengfei Liang
  • Patent number: 10650724
    Abstract: A display device includes: a first data driving chip including: a first data driving circuit to generate a first data signal; and a first sensor to sense a first overcurrent flowing in the first data driving circuit based on a first power current flowing in the first data driving circuit to generate a first signal; a second data driving chip including: a second data driving circuit to generate a second data signal; and a second sensor to sense a second overcurrent flowing in the second data driving circuit based on a second power current flowing in the second data driving circuit to generate a second signal; and a power controller to control first and second powers respectively supplied to the first and second data driving chips, and to block at least one of the first and second powers based on at least one of the first and second signals.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: May 12, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sujin Kim, Jongjae Lee, Yanguk Nam, Dae-sik Lee
  • Patent number: 10652496
    Abstract: A photoelectric conversion device in which pixels are arranged in a matrix, wherein each of the pixels includes: at least one pixel electrode, a photoelectric conversion layer, a counter electrode, and a pixel circuit that is connected to the pixel electrode and outputs a signal from the pixel electrode, wherein a pixel circuit group corresponding to a pixel group formed of the pixels positioned adjacent to each other is disposed below a pixel electrode group of the pixel group, wherein the pixel group includes a first pixel, and a second pixel having more independent pixel electrodes than the first pixel, wherein each of the pixel circuits is connected to each of the independent pixel electrodes, and wherein the first pixel overlaps with the pixel circuit that corresponds to the first pixel, and with the pixel circuit that does not correspond to the first pixel in a plan view.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: May 12, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tatsuhito Goden, Yukihiro Kuroda
  • Patent number: 10649289
    Abstract: An array substrate, a display panel and a display device are provided. The array substrate includes a plurality of signal lines each connected to a plurality of subpixel units. The plurality of signal lines includes first signal lines. The plurality of subpixel units connected to each first signal line is divided into at least two groups each including at least one subpixel unit. An overlapping area between a common electrode and a pixel electrode of each subpixel unit in the group of subpixel units adjacent to a signal input end of the first signal line is larger than an overlapping area between a common electrode and a pixel electrode of each subpixel unit in the group of subpixel units away from the signal input end of the first signal line.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: May 12, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Sha Liu, Zhaokun Yang, Xiang Feng, Qiang Zhang, Xiao Sun
  • Patent number: 10650732
    Abstract: Provided is a display device including a display panel, a power delivery network (PDN), an image controller, and a PDN controller. The display panel may include a plurality of sub-panels. The PDN may be controlled by a control signal, respectively deliver voltages determined by the control signal to the plurality of sub-panels, and generate state information for determining the control signal. The image controller may receive to store frame image data, determine a number of frames to be integrated according to a window size, and integrate the frame image data of frames in the determined number into one image to generate integrated image data. The PDN controller may generate the control signal and a size adjusting signal based on the state information and the integrated image data, provide the generated control signal to the PDN, and may provide the generated size adjusting signal to the image controller. The size adjusting signal may adjust the window size.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: May 12, 2020
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Woo Joo Lee, Suk Ho Lee, Kyung Jin Byun, Nak Woong Eum