Specific Display Element Control Means (e.g., Latches, Memories, Logic) Patents (Class 345/98)
  • Patent number: 11075223
    Abstract: A thin film transistor array panel includes a substrate, a first gate electrode disposed on the substrate, a voltage wire disposed on the substrate, a gate insulating layer disposed on the first gate electrode and the voltage wire, a semiconductor pattern including an oxide semiconductor material disposed on the gate insulating layer, a source electrode and a drain electrode disposed at a distance from each other on the semiconductor pattern, a first passivation layer disposed on the source electrode and the drain electrode, and a first electrode disposed on the first passivation layer and connected with the voltage wire.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: July 27, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyeon Jun Lee, Katsumi Abe, Young-Wook Lee
  • Patent number: 11074883
    Abstract: The present application discloses a pixel circuit of a display panel. The pixel circuit includes a first latch-control sub-circuit configured to provide a data signal under controls of a first scan signal, a latch sub-circuit including a first inverter having an input terminal coupled to receive the data signal and a second inverter, a second latch-control sub-circuit configured to disconnect the second inverter from the first inverter to form an open circuit under controls of the first scan signal or form a latch loop under controls of a second scan signal to stabilize two voltage levels at the first output terminal of the first inverter and the second output terminal of the second output inverter, and an output sub-circuit configured to switch connection between an output terminal and two reference voltage ports under controls of the two voltage levels alternatively.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: July 27, 2021
    Assignees: Ordos Yuansheng Optoelectronics Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Fuqiang Li, Jun Fan
  • Patent number: 11074879
    Abstract: Disclosed are a drive circuit of a display device, a display device and a display panel. The drive circuit of the display device drives a first drive signal output branch and a second drive signal output branch to output a preset logic level signal separately by drive signals of a timing controller.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: July 27, 2021
    Assignees: HKC Corporation Limited, Chongqing HKC Optoelectronics Technology Co., Ltd.
    Inventor: Xiaoyu Huang
  • Patent number: 11068088
    Abstract: An electronic device may be provided with a display. The display may be a variable frame rate display capable of adaptively adjusting a frame rate at which display frames are displayed in response to information associated with the current state of operation of the device. The information may be gathered using control circuitry in the electronic device. The control circuitry may gather the information for adjusting the frame rate by monitoring the electronic device power supply configuration, other device components, the type of content to be displayed, and user-input signals. The control circuitry may adjust the frame rate based on the gathered information by increasing or decreasing the frame rate. The control circuitry may be formed as a portion of display control circuitry for the device such as a display driver integrated circuit or may be formed as a portion of storage and processing circuitry external to the display.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: July 20, 2021
    Assignee: Apple Inc.
    Inventors: Brijesh Tripathi, Jean-Pierre S. Guillou
  • Patent number: 11069817
    Abstract: A display device including a pixel having a memory. The pixel includes at least a display element, a capacitor, an inverter, and a switch. The switch is controlled with a signal held in the capacitor and a signal output from the inverter so that voltage is supplied to the display element. The inverter and the switch can be constituted by transistors with the same polarity. A semiconductor layer included in the pixel may be formed using a light-transmitting material. Moreover, a gate electrode, a drain electrode, and a capacitor electrode may be formed using a light-transmitting conductive layer. The pixel is formed using a light-transmitting material in such a manner, whereby the display device can be a transmissive display device while including a pixel having a memory.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: July 20, 2021
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hajime Kimura, Kengo Akimoto, Masashi Tsubuku, Toshinari Sasaki
  • Patent number: 11069301
    Abstract: A display device can include a gate driver configured to drive gate lines of a panel; a data driver configured to drive data lines of the panel; a timing controller configured to control operations of the gate driver and the data driver; and a level shifter integrated circuit (IC) configured to receive a plurality of control signals from the timing controller, and generate and output a plurality gate control signals for controlling driving of the gate driver, in which the plurality of control signals include an on clock and an off clock, and the level shifter IC stores the on clock and the off clock in buffers based on one or more control signals from the timing controller, generates a plurality of scan clocks by logically processing the on clock and the off clock, and outputs the plurality of scan clocks to the gate driver.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: July 20, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Soon-Dong Cho, Jung-Jae Kim, Sang-Uk Lee, Hyung-Jin Choe
  • Patent number: 11062641
    Abstract: A display device includes signal supply circuit having N blocks and data supply circuit for supplying data to the N blocks. Each block includes holding block having k data holders for supply signals to k columns, and scanning circuit block for sequentially selecting the k data holders to receive data from the data supply circuit. The scanning circuit block includes k-stage shift register formed from k registers. Scanning circuit is formed by N scanning circuit blocks each arranged in one of the N blocks, and sequentially selects the N holding blocks each arranged in one of the N blocks to sequentially select the k data holders of each selected holding block to receive data. In response to output from i-th register of n-th block, the data supply circuit sets (n+1)-th block in operation-enabled state.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: July 13, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takahiro Yamasaki, Takashi Muto
  • Patent number: 11041761
    Abstract: An optical sensing circuit includes a capacitor, and a light sensing unit, a compensation unit, and a switching element coupled to the capacitor. The light sensing unit includes a first light sensing transistor for sensing a first color. The compensation unit includes a second light sensing transistor for sensing a second color. The spectra of the second color and the first color do not overlap each other. When the light illuminates, the light sensing unit generates a first current and the compensation unit generates a second current. The second current reduces the magnitude of the charging or discharging current when the capacitor is charged or discharged by the first current. When the switching element turned on, the voltage of the capacitor is read to determine the color of the light. The voltage level of the gate of the first or second light sensing transistor is adjustable.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: June 22, 2021
    Assignee: AU OPTRONICS CORP.
    Inventor: Yi-Yang Liao
  • Patent number: 11030954
    Abstract: Embodiments are directed to a display device having a display panel, a driving circuit, a sensing circuit, and a compensation circuit. The driving circuit provides a preset sensing voltage to a pixel of the display panel. The sensing circuit senses a pixel current generated by the pixel. The sensing circuit includes a sensing circuit that generates an integrated voltage signal indicative of the pixel current, and an offset circuit for adding an offset to the integrated voltage signal. The offset is based on a previously stored compensation amount for the pixel. The compensation circuit determines a new compensation amount for the pixel based on the offset integrated voltage. Additionally, the compensation circuit compensates a display voltage of the pixel by the new compensation amount in a subsequent display frame of the display device.
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: June 8, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: Sungwook Choi, Yiyeon Hwang, Munchae Yoon, Jongsin Park, Sungwon Lee
  • Patent number: 11029572
    Abstract: To achieve a display device that is suitable for increasing in size and to provide a high-resolution display device. In the display device, three or more adjacent gate lines are supplied with the same selection signal. Three or more pixels that adjoin in the column direction are connected to different source lines. In each of the pixels, a transistor including a semiconductor layer is disposed. An inner source line among three or more source lines is disposed to overlap with a conductive layer that functions as a pixel electrode. Part of the semiconductor layer of the transistor is provided between the outer source line and a source line adjacent to the outer source line.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: June 8, 2021
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Kei Takahashi
  • Patent number: 11018655
    Abstract: A level shift block of a level shift circuit includes a level shifter by which an amplitude level of a signal to drive a P-type transistor is extended to a negative side, and a level shifter by which an amplitude level of a signal to drive an N-type transistor is extended to a positive side.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: May 25, 2021
    Assignee: SHENZHEN TOREY MICROELECTRONIC TECHNOLOGY CO. LTD.
    Inventor: Kaname Yamano
  • Patent number: 11017737
    Abstract: According to one embodiment, a display device includes a display panel including a display area where first drive areas and second drive areas are alternately disposed, and display function layers which include first display function layers and second display function layers and which are changed to a transparent state and a scattering state, and a control unit. The control unit applies a drive voltage to the first display function layers, in a first field period. The control unit applies the drive voltage to the second display function layers, in a second field period. A polarity of the drive voltage in the first field period is different from a polarity of the drive voltage in the second field period.
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: May 25, 2021
    Assignee: Japan Display Inc.
    Inventor: Hirofumi Kato
  • Patent number: 11017699
    Abstract: A display panel may include a plurality of pixel groups, a first lighting test circuit for testing at least one pixel of the plurality of pixel groups, a demultiplexer for providing data signals to the plurality of pixel groups, and a second lighting test circuit for testing one or more pixels of the plurality of pixel groups. At least one of the first lighting test circuit and the demultiplexer is positioned between the plurality of pixel groups and the second lighting test circuit.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: May 25, 2021
    Inventors: Hyunwoong Kim, Seung-Kyu Lee
  • Patent number: 10991330
    Abstract: Aspects of the subject technology relate to electronic device display circuitry and methods of operating the display. The display circuitry includes gate-in-panel (GIP) drivers for each pixel row of a pixel array, and mode selection circuitry coupled between two of the GIP drivers. The mode selection circuitry receives a select signal to switch the display between a full-screen mode of operation and a split-screen mode of operation. The mode selection circuitry allows the pixel rows to be operated in a butterfly driving mode that facilitates reduction of optical artifacts when displaying augmented-reality or virtual-reality content with a multi-function display such as a display of a smartphone or a tablet.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: April 27, 2021
    Assignee: Apple Inc.
    Inventors: Jun Li, Hopil Bae, Chaohao Wang, Yue Chu, Anshi Liang, Ming Xu, Xiaokai Li, Yang Xu
  • Patent number: 10991789
    Abstract: A display substrate, a method of driving the same, a method of manufacturing the same and a display device are provided. The display substrate includes a plurality of non-foldable display regions and a plurality of foldable display regions. The display substrate further includes a first signal line connected to a first electrode and a second signal line connected to a second electrode. The first signal line includes a plurality of secondary signal lines independent of each other. Each secondary signal line corresponds to one of the non-foldable display regions and is configured to control whether to supply power to the corresponding non-foldable display region.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: April 27, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yipeng Chen, Li Wang
  • Patent number: 10984694
    Abstract: A multiplexer circuit includes a first switch unit and a second switch unit. The first switch unit is electrically connected to a first data line and a first pixel circuit, and configured to turn on according to a first signal in a first time duration. The second switch unit is electrically connected to the first data line and a second pixel circuit, and configured to turn on according to a second signal in a second time duration. The first time duration and the second time duration substantially start or end at a same time, so that the first time duration and the second time duration have overlap.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: April 20, 2021
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Rong-Fu Lin, Chi Yu, Chih-Fu Yang, Jie-Chuan Huang, Sung-Yu Su
  • Patent number: 10984738
    Abstract: This disclosure provides a driving device and a driving method of a display panel, wherein the display panel comprises a pixel array, and the driving device comprises: at least one first gate driving module disposed on one side of the pixel array and connected to odd-numbered rows of pixels of the pixel array for line-by-line driving the odd-numbered rows of pixels of the pixel array, and at least one second gate driving module disposed on another side of the pixel array and connected to even-numbered rows of pixels of the pixel array for performing the line-by-line driving on the even-numbered rows of pixels of the pixel array.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: April 20, 2021
    Assignee: HKC CORPORATION LIMITED
    Inventor: Beizhou Huang
  • Patent number: 10977981
    Abstract: Embodiments of the present disclosure provide a device for controlling luminance, a method of controlling luminance and a display device. The method of controlling luminance may comprise: obtaining a theoretical white balanced luminance value for each color of sub-pixel included in N pixels; obtaining a luminance controlling value for other colors of sub-pixels except for a ith color of sub-pixel included in each of the N pixels; and adjusting luminance of the other colors of sub-pixels except for the ith color of sub-pixel included in each pixel according to the luminance controlling value. The method of controlling luminance can be used in luminance controlling devices.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: April 13, 2021
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Hongliang Lv, Qingnan Ai, Boning Wang, Ruifeng Yang, Litao Fan, Yufei Liu, Huaxu Yang, Libao Cui
  • Patent number: 10976869
    Abstract: A display device comprises a plurality of gate lines disposed in a first direction; a plurality of data lines disposed in a second direction different from the first direction and defining a plurality of pixels with the plurality of gate lines; a sensor pixel part including the plurality of pixels; a photo touch sensor disposed in the sensor pixel part; a first read-out line transferring a touch sensing signal of the photo touch sensor and a second read-out line configured to detect a noise, the first and second read-out lines disposed between the data lines in the second direction; a sensing data line disposed in the second direction and applying a sensor data signal to the photo touch sensor; and a sensing display gate line disposed in the first direction and applying a sensor gate signal to the photo touch sensor.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: April 13, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: SeungHwan Shin, Joon Heo
  • Patent number: 10971100
    Abstract: The present disclosure provides a driving method of a display panel, the display panel including a plurality of pixels, each row of pixels correspond to a gate line, each column of pixels correspond to a data line, the driving method including: comparing a current frame of image with a previous frame of image to determine a non-changing row of the pixels, contents displayed by each pixel in the non-changing row for the current frame of image and contents displayed by each pixel in the non-changing row for the previous frame of image are the same; selecting a non-charging row from the non-changing row according to a predetermined time; providing, when displaying the current frame of image, an invalid signal to the gate line of the non-charging row during a scanning time for the gate line of the non-charging row to not to charge the non-charging row.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: April 6, 2021
    Assignees: CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Ying Zhang, Sijun Lei, Xu Lu, Xianyong Gao, Shoujun Xiao, Yifan Huangfu, Zhicai Xu, Bo Ran, Yongli Ge
  • Patent number: 10964249
    Abstract: A source driving circuit including source channels each of which includes a source amplifier is disclosed. The source amplifier includes an internal amplifier configured to output a first pull-up signal and a first pull-down signal in response to a first gamma signal; an output circuit configured to output a first source driving signal in response to the first pull-up signal and the first pull-down signal; and first and second switch circuits connecting the internal amplifier and the output circuit, and configured to transfer the first pull-up signal and the first pull-down signal corresponding to the first gamma signal or a second pull-up signal and a second pull-down signal corresponding to a second gamma signal of another source channel, to the output circuit.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: March 30, 2021
    Assignee: Silicon Works Co., Ltd.
    Inventor: Yong Sung Ahn
  • Patent number: 10956581
    Abstract: The present invention includes a wireless communication method and device comprising a one-to-one exchange of wireless electronic device identifications or unique profile IDs between a sending and a receiving party who are both registered users of the electronic business/personal card service and further comprising upload of the wireless electronic identifications to a data server computer system wherein said system matches said identifications with those of registered users and said computer system displays information about the user associated with each identification.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: March 23, 2021
    Inventor: Daniel L. Coffing
  • Patent number: 10955695
    Abstract: A liquid crystal display device includes pixel electrodes, a common electrode placed in such a manner that at least part thereof overlaps the pixel electrodes via an inter-transparent-electrode-film insulating film, at least two source lines, placed in such a manner that the pixel electrodes are interposed therebetween, that supply the pixel electrodes with image signals, and a common electrode wire, placed in such a manner that the pixel electrodes that are adjacent to the two source lines between which the pixel electrodes are interposed between the common electrode wire and the source lines, that extends parallel to the source lines and supplies the common electrode with at least a reference potential signal.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: March 23, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Masakatsu Tominaga
  • Patent number: 10936121
    Abstract: A method and device for controlling in-plane interference of a liquid crystal touch screen and a display system are provided. By detecting a current image of a display panel of the liquid crystal touch screen in real time, and when the image that causes the in-plane interference of the liquid crystal touch screen is detected, inverting original polarities of data voltages input to at least a portion of data lines of the display panel, so that change directions of coupled voltages of adjacent two of the data lines with respect to a common electrode are opposite to each other, solving problems of in-plane interference for the liquid crystal touch screen.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: March 2, 2021
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Lei Chen, Yuhua Chang, Ming-wei Chen, Huiyang Kang, Wendong Li
  • Patent number: 10937381
    Abstract: A liquid crystal display device for compensating for negative shift stress of a thin film transistor and extending the lifespan of the thin film transistor, and a method of driving the same, are discussed. In the device, a high compensation gate voltage is applied to a gate line in a blanking period and a data voltage is applied to the subpixels of the gate when the high compensation gate voltage is applied.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: March 2, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventor: Ho-Jin Jeong
  • Patent number: 10937376
    Abstract: A liquid crystal display device is disclosed utilizing two or more display panels stacked on top of each other. In a dual panel configuration, the first display panel may be comprised of color pixels and the second display panel may be comprised of contrast pixels. The color pixel in the first display panel has a corresponding contrast pixel in the second display panel wherein said contrast pixel is larger in terms of length and in size than the corresponding color pixel. The liquid crystal display device may also switch to a mode that uses an expansion method of contrast pixels to reduce image displacement. Further disclosed is a configuration where the relative position of the first display panel and the second display panel may be adjusted to align the corresponding color and contrast pixels when viewing the display in oblique angles.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: March 2, 2021
    Assignees: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD., PASONA KNOWLEDGE PARTNER INC.
    Inventors: Satoshi Hirotsune, Katsuji Tanaka
  • Patent number: 10930207
    Abstract: The disclosure discloses a display controller and a display device, and relates to the field of display technology. The display device includes a display panel and a display controller, and the display controller includes a display driver, data storage, mode trigger and mode controller. The output terminal of the mode trigger is connected to the input terminal of the mode controller, the output terminal of the mode controller is connected to the control terminal of a signal switcher and the control terminal of the display driver, the output terminal of the signal switcher is connected to a normal display signal terminal and a standby display signal terminal connected to the data storage, and the normal display signal terminal and the standby display signal terminal are connected to the input terminal of the display driver. The display device provided by the disclosure may be used for standby display.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: February 23, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Pan Li, Yongda Ma, Xueguang Hao
  • Patent number: 10916182
    Abstract: Systems and methods for improving perceived image quality of an electronic display communicatively coupled to an image data source that outputs a synchronization control signal, which indicates when an image frame is expected to stop being written, based on a source clock signal. The electronic display includes a display pixel row, a display driver, and a timing controller. The timing controller determines a target scan time to be used to write the image frame to the display pixel row and instructs the display driver to write the image frame to the display pixel row based on the target scan time and a display block signal, in which the timing controller instructs the display driver to continue writing the image frame to display pixel row after the electronic display receives the synchronization control signal when the synchronization control signal is received before the target scan time is reached.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: February 9, 2021
    Assignee: Apple Inc.
    Inventors: Sinan Alousi, Haifeng Li, Mohammad Hajirostam, Yafei Bi
  • Patent number: 10908753
    Abstract: A touch device has a plurality of row conductors and a plurality of column conductors. Located proximate to where the row conductors and the column conductors interact are additional conductor arrangements that are able to increase the capacitive interaction that occurs on the touch device. The conductor arrangements are formed from different column conductors and row conductors located proximate to the where the row and column conductors interact and form different arrangements.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: February 2, 2021
    Assignee: Tactual Labs Co.
    Inventor: Braon Moseley
  • Patent number: 10908331
    Abstract: A display substrate and a manufacturing method thereof, and a display panel are provided. The display substrate includes a base substrate with a black matrix BM disposed thereon. The base substrate is provided with a display area and a non-display area, and the BM disposed in the non-display area comprises a first BM portion and a second BM portion. The first BM portion and the second BM portion are sequentially arranged in a direction away from the center of the base substrate, and a gap exists between the first BM portion and the second BM portion. When an external electric field exists around the display substrate, the second BM portion can effectively shield the external electric field, thereby effectively preventing the external electric field from affecting the display area of the display panel. Thus, the display effect of the display substrate is improved.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: February 2, 2021
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: He Feng, Dong Wang, Jiyu Wan, Tonghua Yang
  • Patent number: 10910458
    Abstract: A display apparatus includes: pixels arrayed in a non-rectangular display region in a first direction and a second direction; a scan line extending in the first direction and connected to a first pixel group extending in the first direction; an intersecting scan line including a first wiring and a second wiring, the first wiring extending in the first direction and connected to a second pixel group extending in the first direction, the second wiring extending in the second direction; a data line extending in the second direction and connected to a third pixel group extending in the second direction; a scan circuit group in a first side portion of an outer circumferential side of the display region and facing the scan line, and configured to output a scan signal to the scan line and to output a scan signal to the first wiring via the second wiring; and a data signal circuit group in a second side portion of the outer circumferential side and facing the first side portion, and configured to output a data signal
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: February 2, 2021
    Assignee: TIANMA MICROELECTRONICS CO., LTD.
    Inventors: Yojiro Matsueda, Kenichi Takatori
  • Patent number: 10902817
    Abstract: A liquid crystal display device includes a source device that outputs image data and a sink device that performs a displaying operation based on the image data. The source device changes a frame rate of an image frame composing the image data while the displaying operation is performed. The sink device changes a frame rate of a panel driving frame for the displaying operation by adjusting a vertical blank period of the panel driving frame as the frame rate of the image frame is changed. Here, the sink device adjusts a common voltage applied to a display panel included in the sink device during a display operation of an individual frame, in accordance with the frame rate of the panel driving frame.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: January 26, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jahun Koo, Kyung-Hun Lee, Ho Lee
  • Patent number: 10902787
    Abstract: An apparatus for display includes an active region, a gate scanning driver, and light emitting driver. The active region includes a plurality of subpixels. The gate scanning driver is operatively coupled to the active region and configured to scan the plurality of subpixels in a first period of each frame at a first rate. The light emitting driver is operatively coupled to the active region and configured to cause the plurality of subpixels to start emitting light in a second period of each frame at a second rate. The second rate is higher than the first rate. The second period overlaps the first period.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: January 26, 2021
    Assignee: SHANGHAI YUNYINGGU TECHNOLOGY CO., LTD.
    Inventors: Yu-Hsun Peng, Shih-Wei Tseng, Jing Gu
  • Patent number: 10896656
    Abstract: An active matrix substrate includes a demultiplexer circuit arranged in a peripheral region. Each unit circuit in the demultiplexer circuit includes n switching TFTs. The demultiplexer circuit includes a boost circuit capable of boosting a voltage applied to a gate electrode of the switching TFT. The boost circuit includes a set unit configured to perform a set action, a boost unit configured to perform a boost action, and a reset unit configured to perform a reset action. The set unit includes a setting TFT including a drain electrode connected to the drive signal line and a source electrode connected to a node connected to the gate electrode of the switching TFT. When the set unit performs the set action, a first signal voltage is supplied from the drive signal line to the drain electrode of the setting TFT, and a second signal voltage higher than the first signal voltage is supplied to the gate electrode of the setting TFT.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: January 19, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Kaoru Yamamoto
  • Patent number: 10878743
    Abstract: A display apparatus includes a display panel including an active area that includes at least one module area and a bezel area positioned outside the active area, wherein a pixel array is positioned in the active area, and the at least one module area is formed as a light-transmissive area.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: December 29, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Namwook Cho, Changsoo Kim, Cheolhwan Lee
  • Patent number: 10878532
    Abstract: A display device is provided. The display device includes: an image processor image-processing contents and scaling the contents at a first scaling magnification; a controller determining a second scaling magnification on the basis of a resolution of the contents scaled at the first scaling magnification and an output resolution of the display device; and a display scaling the contents scaled at the first scaling magnification depending on the second scaling magnification and displaying the contents scaled depending on the second scaling magnification.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: December 29, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Min-woo Lee, Jong-ho Kim, Hyun-Hee Park, Jae-hun Cho, Ho-jin Kim, Yong-man Lee, Won-hee Choe, Dong-kyoon Han
  • Patent number: 10867574
    Abstract: In a liquid crystal display (LCD) device having a touch panel function, power consumption is reduced in the standby state. The display section is divided into blocks each of which is formed of a plurality of display lines. The counter electrode is disposed for each block. A driving circuit selectively supplies, to the counter electrode of each block, the voltage used for the liquid crystal display and the voltage used for the touch panel scanning. The driving circuit has a source amplifier that supplies the video voltages to the video lines. The driving circuit reduces the current in the source amplifier, such that the current is lower than current at the time of a normal operation, to lower the power consumption, and stops the operation of the source amplifier and supplies the GND voltage to the video lines to further lower the power consumption.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: December 15, 2020
    Assignee: Japan Display Inc.
    Inventor: Shouji Nagao
  • Patent number: 10861402
    Abstract: The disclosure provides a multiplexer and a display panel. In the multiplexer, a first and second output ends are respectively connected to a first and second data transmission lines. Control ends of a first and second switches are respectively coupled to a first and second control lines. First ends of the first and second switches are respectively coupled to the first and second output ends. The first data transmission line, the second data transmission line, the first control line, and the second control line extend along a first direction, and the first output end and the second output end are disposed on opposite sides of the first control line.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: December 8, 2020
    Assignee: Au Optronics Corporation
    Inventor: Peng-Bo Xi
  • Patent number: 10848793
    Abstract: The application provides a configuring method for a splicing-type display device, the configuring method includes: receiving a configuration information display command; in response to the configuration information display command, extracting fonts from a font library according to configuration information and stitching the extracted fonts to thereby generate a configuration information image, wherein the configuration information includes driving port information and a cascading serial number, and the configuration information image at least includes the cascading serial number; storing the configuration information image; embedding the stored configuration information image into a background image corresponding to a driven display area to thereby obtain a target image; and displaying the target image in the driven display area. The application further provides a configuring apparatus and a display device control card adapted for performing the configuring method.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: November 24, 2020
    Assignee: XI'AN NOVASTAR TECH CO., LTD.
    Inventors: Jingguo Zong, Huorong Wang, Wei Liang
  • Patent number: 10839766
    Abstract: A first flipflop outputs a first signal synchronized with a first clock signal, a second flipflop outputs a second signal synchronized with a second clock signal, and a third flipflop outputs a third signal synchronized with a third clock signal. The second flipflop includes first to fifth transistors. In the first transistor, the second clock signal is input to a first terminal and the second signal is output from a second terminal. In the second transistor, a first signal is input to a first terminal, a second terminal is electrically connected to a gate of the first transistor, and the first clock signal is input to a gate. In the third transistor, the third signal is input to a first terminal, a second terminal is electrically connected to the gate of the first transistor, and the third clock signal is input to a gate.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: November 17, 2020
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Atsushi Umezaki
  • Patent number: 10824279
    Abstract: A system is disclosed. The system can comprise drive circuitry included in a first component of the system, the drive circuitry configured to drive a first touch electrode on a touch sensor panel. The system can also comprise a driving line configured to couple an output of the drive circuitry to the first touch electrode. The system can also comprise a feedback line configured to couple the output of the drive circuitry to an input of the drive circuitry, wherein a first end of the feedback line is coupled to the input of the drive circuitry at the first component, and a second end of the feedback line is configured to be coupled to the output of the drive circuitry at a second component, different from the first component, of the system.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: November 3, 2020
    Assignee: Apple Inc.
    Inventors: Chaohao Wang, Yingxuan Li, Hung Sheng Lin, Paolo Sacchetto, Szu-Hsien Lee, Weijun Yao, Howard Tang
  • Patent number: 10804350
    Abstract: An organic light-emitting display device including: pixels disposed on each of horizontal lines, each of the pixels includes an organic light-emitting diode, and an auxiliary transistor coupled between an anode electrode of the organic light-emitting diode and an auxiliary power source; and at least one reference transistor disposed on each of the horizontal lines and coupled between a reference power source and at least one of the pixels. The auxiliary transistor and the reference transistor may be simultaneously turned on.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: October 13, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang Moo Choi, Seung Kyu Lee
  • Patent number: 10803822
    Abstract: This application discloses a pixel drive circuit of a display panel and a display device. The pixel drive circuit of a display panel includes: a pixel electrode; a data line, configured to provide a data voltage of a current pixel; a power supply circuit, configured to provide a power supply voltage; and an amplification circuit, configured to amplify the data voltage provided by the data line and output the amplified data voltage to the pixel electrode.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: October 13, 2020
    Assignees: HKC CORPORATION LIMITED, CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Chuan Wu
  • Patent number: 10796658
    Abstract: A gamma reference voltage generating circuit comprises a first gamma reference voltage generating module and a second gamma reference voltage generating module. The first gamma reference voltage generating module is configured to receive a source voltage signal, amplify the source voltage signal to obtain a first gamma reference voltage signal, and output the first gamma reference voltage signal to a source driving circuit. The second gamma reference voltage generating module is configured to receive the source voltage signal, step down the source voltage signal to obtain a second gamma reference voltage signal, and divide a current on the second gamma reference voltage generating module into two output currents and transmit the two output currents to the source driving circuit, or buck chop the source voltage signal to obtain the second gamma reference voltage signal and transmit the second gamma reference voltage signal to the source driving circuit.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: October 6, 2020
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Leli Peng, Xue Hu
  • Patent number: 10796653
    Abstract: A GOA circuit comprises m cascaded GOA units, wherein a GOA unit comprises forward-reverse scan control module, first gate signal output module and second gate signal output module. The forward-reverse scan control module controls the GOA circuit to perform forward scanning or reverse scanning. The first gate signal output module comprises seventh TFT, ninth TFT and sixteenth TFT; a second terminal of the sixteenth TFT receives a high potential signal, and a first and a third terminal of the sixteenth TFT are connected to the first and second terminals of the seventh TFT, respectively. The second gate signal output module comprises twelfth TFT, thirteenth TFT and fifteenth TFT; a second terminal of the fifteenth TFT receives the high potential signal, and a first and a third terminal of the fifteenth TFT are connected to the first and second terminals of the twelfth TFT, respectively.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: October 6, 2020
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Ronglei Dai
  • Patent number: 10762829
    Abstract: An apparatus includes an active region, a source driving circuit, and a light emitting driving circuit. The active region includes an array of light emitting elements corresponding to an array of pixels arranged in M rows and N columns. The number of the array of light emitting elements is k times of the number of the array of pixels. The apparatus includes xM light emitting lines and (k/x)N source lines, wherein x is a positive fraction, and each of xM and (k/x)N is a positive integer. The source driving circuit is operatively coupled to the active region via the (k/x)N source lines and configured to write display data of a frame to the array of light emitting elements. The light emitting driving circuit is operatively coupled to the active region via the xM light emitting lines and configured to cause the array of light emitting elements to emit light.
    Type: Grant
    Filed: February 17, 2019
    Date of Patent: September 1, 2020
    Assignee: BEIJING YUNYINGGU TECHNOLOGY CO., LTD.
    Inventors: Jing Gu, Yu-Hsun Peng, Shih-Wei Tseng
  • Patent number: 10748495
    Abstract: A pixel driving circuit is used to drive a pixel structure having a plurality of pixel units. The pixel driving circuit includes data lines; selecting circuits having a data input terminal connected to one of the data lines, a first output terminal connected to a red subpixel unit of a pixel unit, a second output terminal connected to a green subpixel unit of the pixel unit, and a third output terminal connected to a blue subpixel unit of the pixel unit; scanning lines; voltage-variation circuits having an input terminal to receive the scanning signal, an output terminal connected to one of scanning lines. Each of the voltage-variation circuits is selectively operable in a voltage-regulated state or a conduct state.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: August 18, 2020
    Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd.
    Inventor: Qingcheng Zuo
  • Patent number: 10741137
    Abstract: A display driving device is provided, which includes a detecting circuit, a comparing circuit coupled to the detecting circuit, and a timing control circuit coupled to the comparing circuit. The detecting circuit detects, and sends to the comparing circuit, a common voltage from each of a plurality of regions in the display panel. The comparing circuit compares the common voltage with a reference voltage and determines whether it is normal. Based on the determination result from the comparing circuit, the timing control circuit adjusts a data voltage of a region having an abnormal common voltage so as to allow a positive data voltage and a negative data voltage of the region to be symmetrical to the common voltage of the region. A display driving method based on the display driving device and a display apparatus having the display driving device are also disclosed.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: August 11, 2020
    Assignees: CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Wangjing Bai, Yihjen Hsu
  • Patent number: 10741131
    Abstract: A display apparatus according to the present invention, includes: a display unit configured to display an image based on display image data generated from input image data; a control unit configured to control emission brightness of a light source of the display unit; and a detecting unit configured to detect a user operation for specifying a position in the image, wherein the control unit controls the emission brightness of the light source of the display unit in accordance with a gradation value of the input image data corresponding to the position specified by the user operation, to emission brightness that is lower than set emission brightness or to emission brightness that is higher than the set emission brightness.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: August 11, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Shinya Ishii, Joji Kamahara
  • Patent number: RE48661
    Abstract: A liquid crystal display includes gate lines, data lines intersecting with the gate lines to define sub-pixels, and a transmission part including transmission lines connected with the data lines to transmit data signals, where at least one pair of the transmission lines are arranged to cross each other, some of the transmission lines cross each other so that a sequence of data signals applied to the data lines can be changed, any of the transmission lines is opened at a crossing point of the transmission lines and the opened portion is connected by a separate conductor, thereby insulating the transmission lines crossing each other from each other, and an additional process for connecting the opened portion is not needed, thereby simplifying a fabrication process for the liquid crystal display.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: July 27, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Dong-Gyu Kim