Display Power Source Patents (Class 345/211)
  • Patent number: 11189207
    Abstract: Disclosed herein is a chip-on-film including: a base film; a driver mounted on one of upper and lower surfaces of the base film; and at least one pad group, which includes signal wiring lines disposed on the upper and lower surfaces of the base film and transmitting signals via two paths, a first pad and a second pad disposed on one of the upper and lower surfaces of the base film, and a plurality of through-holes disposed between the first pad and the second pad and electrically connecting the signal wiring lines to each other, wherein the first pad and the second pad are separated a predetermined distance from each other in a width direction of the base film, and each of the first pad and the second pad is obliquely arranged in plural in a longitudinal direction of the base film.
    Type: Grant
    Filed: August 27, 2020
    Date of Patent: November 30, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: Jaesung Jeon, Daekyung Kim, Eunbyul Kim
  • Patent number: 11189221
    Abstract: Provided is a display brightness compensation method including: setting an aging grayscale of a monochrome pixel of each of n test display panels; setting m test grayscales of the monochrome pixel; during a time period, illuminating the aging grayscale of the monochrome pixel, periodically illuminating each test grayscale of the monochrome pixel, and periodically obtaining a test display brightness of the monochrome pixel at the test grayscale at the aging grayscale; calculating a brightness-time characteristic of the monochrome pixel at each of the m test grayscales at the aging grayscale; and compensating an actual display brightness of a monochrome pixel of a target display panel at a current display moment based on the brightness-time characteristic. Both m and n are positive integers greater than or equal to 2. The monochrome pixels of any two test display panels have different aging grayscales.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: November 30, 2021
    Assignee: XIAMEN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Junting Ouyang, Yang Yang, Bojia Lv, Kerui Xi, Boquan Lin, Xiangzi Kong
  • Patent number: 11189230
    Abstract: A display device, a pixel compensation circuit and a driving method thereof are disclosed. The pixel compensation circuit includes: a driving transistor, an initialization circuit, a storage circuit, a first data writing circuit, a second data writing circuit, a compensation circuit and a light emitting control circuit. A first terminal of the storage circuit is coupled to the gate electrode of the drive transistor, and the first data writing circuit is configured to write a data signal to a second terminal of the storage circuit. The second data writing circuit is configured to change a potential of the second terminal of the storage circuit so that a potential of the first terminal of the storage circuit is associated with the data signal. The compensation circuit is configured to charge the first terminal of the storage circuit so that it is associated with a threshold voltage of the drive transistor.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: November 30, 2021
    Assignees: ORDOS YUANSHENG OPTOELECTRONICS CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhichong Wang, Fuqiang Li, Jing Feng, Xinglong Luan, Peng Liu
  • Patent number: 11183122
    Abstract: A display device includes pixels sequentially arranged along a first direction, a data driver having output lines and generating data signals, data lines each including sub-data lines extended along the first direction, demultiplexers each connecting a corresponding output line of the output lines to a corresponding data line of the data lines and switching the corresponding output line to one of the sub-data lines one at a time so that each of the data signals is supplied to a corresponding pixel of the pixels.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: November 23, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jin Wook Yang, Soon Dong Kim, Chang Noh Yoon, Eun Gyeong Choe
  • Patent number: 11183120
    Abstract: Disclosed are a pixel array substrate and a driving method thereof, a display panel, and a display device. The pixel array substrate includes a plurality of pixel units arranged in a plurality of pixel rows, and common electrodes distributed in the plurality of pixel rows. Each of the plurality of pixel units includes a light emitting element, first electrodes of light emitting elements of a plurality of pixel units in each of the plurality of pixel rows are electrically connected with each other to form a common electrode in the each of the plurality of pixel rows, and the common electrodes in the plurality of pixel rows are insulated from each other.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: November 23, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Ling Wang, Pan Xu, Yi Cheng Lin, Xing Zhang, Ying Han, Guang Yan
  • Patent number: 11183090
    Abstract: A test circuit and a test method for display panels are provided. The test circuit comprises: switch units; first test leads; first test pads; and a second test pad, a second test lead, a third test pad and a switch control line. Numbers of the switch units, the first test leads and the first test pads are the same; each of the first test leads is electrically connected to a corresponding one of the display panels; each of the first test pads is electrically connected to an output terminal of the corresponding switch unit, and each of the first test pads is electrically connected to the corresponding first test lead; the second test pad and the second test lead are electrically connected to input terminals of the switch units; and the third test pad and the switch control line are electrically connected to control terminals of the switch units.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: November 23, 2021
    Assignees: HKC CORPORATION LIMITED, CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Yu-Jen Chen
  • Patent number: 11176857
    Abstract: This application discloses a display panel testing apparatus and testing method. When a data control circuit receives a first enable signal generated by a switching signal generation circuit, the data control circuit controls a data interface that is output by the data control circuit to be in a high-impedance state.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: November 16, 2021
    Assignees: CHONGQING ADVANCE DISPLAY TECHNOLOGY RESEARCH, CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Wenqin Zhao
  • Patent number: 11170682
    Abstract: Provided are a shift register and a driving method thereof, a gate driving circuit, and a display device. The shift register includes: an input circuit, configured to be coupled to an input signal end and a second clock signal end, respectively; a first transistor, where the first electrode of the first transistor is coupled to the output end of the input circuit, and the first transistor is a double-gate type transistor; the first gate of the first transistor is configured to be coupled to a first reference signal end, and the second gate of the first transistor is configured to be coupled to a first threshold control signal end; and an output circuit, configured to be coupled to a first clock signal end and a signal output end, respectively, where the control end of the output circuit is coupled to the second electrode of the first transistor.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: November 9, 2021
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Guangliang Shang, Libin Liu, Can Zheng, Yipeng Chen, Xinshe Yin, Shiming Shi
  • Patent number: 11170730
    Abstract: A driving device of a flat panel display configured to receive an image signal and a clock signal includes a driving circuit configured to convert the image signal into pixel data and output the pixel data, a timing controller configured to generate and output a vertical synchronization signal, a horizontal synchronization signal, a source change enable signal, and a display enable signal using the image signal and the clock signal, an output buffer including an input terminal configured to receive the pixel data and an output terminal connected to the flat panel display, and a buffer controller connected to the timing controller and the output buffer and configured to control a bias current, applied to the output buffer, to be decreased by a value during a period.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: November 9, 2021
    Assignee: MagnaChip Semiconductor, Ltd.
    Inventors: Hyoung Kyu Kim, Yeon Kyoung Park, Dae Young Yoo
  • Patent number: 11170685
    Abstract: A display device and a driving device thereof is disclosed. The driving device is coupled to a display panel. The driving device includes at least one first driver integrated circuit (IC) and at least one second driver integrated circuit (IC). The first driver integrated circuit is coupled to the display panel. The first driver integrated circuit drives the display panel and detects a first working temperature. The second driver integrated circuit is coupled to the display panel and the first driver IC. The second driver integrated circuit drives the display panel. The first driver IC stops driving the display panel and communicates with the second driver IC to stop driving the display panel when the first working temperature is substantially higher than a first given temperature.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: November 9, 2021
    Assignee: Novatek Microelectronics Corp.
    Inventors: Jhih-Ming Liao, Chun-Yu Liao, Teng-Jui Yu
  • Patent number: 11170719
    Abstract: An enhanced pixel circuit for a display device provides separate compensation and data programming phases to permit minimization of the programming time. Variations in voltage supplies are accounted for by isolating the drive transistor from such power supply by using a second drive transistor configured as source follower relative to the first drive transistor. An on bias stress transistor is incorporated that can electrically connect the first drive transistor to the power supply during an on bias stress operation. During such operation, a voltage stress is applied to eliminate hysteresis effects associated with the drive transistor. The on bias stress operation may be performed as part of a refresh operation during which a data voltage is programmed to the pixel circuit, or as part of a low frequency operation during which a previously programming data voltage is maintained which reduces power consumption.
    Type: Grant
    Filed: December 10, 2020
    Date of Patent: November 9, 2021
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tong Lu, Kohhei Tanaka
  • Patent number: 11170720
    Abstract: The invention provides a display panel driving apparatus and a driving method thereof. The display panel driving apparatus includes a source driver circuit and a timing controller circuit. The source driver circuit loads data to data lines of the display panel in load data periods. The timing controller circuit controls the source driver circuit for dynamically configuring a time length of one of the load data periods according to whether charge sharing occurs. When a charge sharing operation is not performed on at least two of the data lines in the load data period, the load data period has a first time length. When the charge sharing operation is performed on at least two of the data lines in the load data period, the load data period has a second time length longer than the first time length.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: November 9, 2021
    Assignee: Novatek Microelectronics Corp.
    Inventors: Pang-Jen Chiang, Jen-Chieh Hu, Chin-Hung Hsu
  • Patent number: 11164525
    Abstract: A display apparatus includes a plurality of pixels. A pixel includes a first capacitor connected between a first voltage line receiving a first driving signal and a first node, a first transistor comprising a control electrode connected to the first node, a first electrode connected to a second voltage line receiving a first power source signal and a second electrode connected to a second node, an organic light emitting diode comprising an anode electrode connected to the second node and a cathode electrode receiving a second power source signal, a second capacitor connected between an m-th data line and the second node (wherein, ‘m’ is a natural number) and a second transistor comprising a control electrode connected to an n-th scan line (wherein, ‘n’ is a natural number), a first electrode connected to the first node and a second electrode connected to the second node.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: November 2, 2021
    Inventors: Chong-Chul Chai, Oh-Kyong Kwon, Nack-Hyeon Keum, Kyong-Hwan Oh, Young-Wan Seo, Yong-Koo Her, In-Jae Hwang
  • Patent number: 11164523
    Abstract: The present disclosure provides a compensation method and compensation apparatus for a pixel circuit, and a display apparatus. The compensation method for the pixel circuit includes: acquiring a threshold voltage of a driving transistor of the pixel circuit; comparing a source voltage of the driving transistor with the threshold voltage; and adjusting the source voltage of the driving transistor according to a comparison result.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: November 2, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Ming Wang
  • Patent number: 11158278
    Abstract: The disclosure provides a display component compensation method and a display component compensation device. The display component compensation method includes: obtaining a frequency value of a spread-spectrum component at time Tn; obtaining a first charge time Tn1 of the display component at the time Tn; obtaining a second charge time Tn2 of the display component at the time Tn; and obtaining a second falling edge time of a first clock signal of the display component at the time Tn according to a difference between the first charging time Tn1 and the second charging time Tn2 of the display component at the lime Tn.
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: October 26, 2021
    Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Guangxing Xiao
  • Patent number: 11158255
    Abstract: A display driving method, a display driving device, and a display device are provided. The display driving method includes: providing a first voltage, which is lower than a first reference voltage, to a first voltage terminal of a pixel circuit to drive the pixel circuit, wherein a voltage reduction amplitude of the first voltage relative to the first reference voltage is a first amplitude; and providing a second voltage, which is lower than a second reference voltage, to a second voltage terminal of a source driving circuit to control the source driving circuit to generate a data signal which is lower than a data reference voltage, and to provide the data signal to the pixel circuit, a voltage reduction amplitude of the data signal relative to the data reference voltage is the first amplitude.
    Type: Grant
    Filed: January 21, 2019
    Date of Patent: October 26, 2021
    Assignees: ORDOS YUANSHENG OPTOELECTRONICS CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Hasieerdun Han, Chichang Liu
  • Patent number: 11158698
    Abstract: An organic light-emitting diode display is disclosed. In one aspect, the display includes a plurality of pixels formed in a plurality of intersection areas of a plurality of data lines and a plurality of scan lines. Each of the pixels includes a storage capacitor configured to store a data voltage, at least one target transistor having one end electrically connected to a current path of the storage capacitor, an organic light emitting layer, and a first electrode of an OLED formed over the organic light emitting layer. The first electrode includes a first electrode extension configured to block at least a portion of the target transistor from light.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: October 26, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hee Rim Song, Mu Kyung Jeon, Chong Chul Chai
  • Patent number: 11152448
    Abstract: The present disclosure provides an array substrate which comprises a plurality of sub-pixels distributed in an array arrangement, wherein data lines and power supply signal lines are disposed between two adjacent columns of the sub-pixels; wherein the data lines and the power supply signal lines are prepared respectively on different film layer surfaces, and the data lines and the power supply signal lines at least partially overlap. The present disclosure further provides an OLED display device which comprises the array substrate. The array substrate of the present disclosure has a higher aperture ratio.
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: October 19, 2021
    Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Peng Du
  • Patent number: 11151947
    Abstract: An organic light emitting display device includes pixels, a sensor configured to extract at least one of deviation information of first transistors of the pixels and deterioration information of OLEDs of the pixels in a sensing period, and a converter configured to change a bit of first data input from the outside by using at least one of the deviation information and the deterioration information, and to generate second data, wherein a pixel at an ith horizontal line includes an OLED, a first transistor configured to control an amount of a current that flows from a first power source via the OLED in response to a voltage of a first node, second and third transistors configured to turn on when a scan signal is supplied to an ith scan line, and a fourth transistor configured to turn on when a control signal is supplied to an ith control line.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: October 19, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hai Jung In, Dong Gyu Kim, Bo Yong Chung
  • Patent number: 11145695
    Abstract: A display screen, a mobile terminal and a display method are provided. The display screen includes an OLED display screen and an optical fingerprint module arranged in the OLED display screen. The OLED display screen includes a light-emitting layer and a touch screen. The light-emitting layer includes a first light-emitting region and a second light-emitting region. The first light-emitting region is arranged at a position corresponding to the optical fingerprint module and configured to, when the region of the touch screen, which corresponds to the first light-emitting region, is not touched, emit light at a first preset brightness value, and when the region of the touch screen, which corresponds to the first light-emitting region, is touched, emit light at a second preset brightness value, the first preset brightness value is smaller than the second preset brightness value.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: October 12, 2021
    Assignee: VIVO MOBILE COMMUNICATION CO., LTD.
    Inventor: Ziqiang Deng
  • Patent number: 11144143
    Abstract: A touch display panel and a touch display device are discussed. A data voltage, supplied to subpixels corresponding to a touch electrode, has a polarity pattern configured to minimize the cumulative transition value of the data voltage. Noise in touch sensing signals, caused by the transition of the data voltage, can be prevented, and touch sensing performance can be improved. A data voltage having polarities opposite to those of a previous frame is supplied in every specific frames, or some subpixels of a frame are set to have opposite polarities. Deteriorations in subpixels, caused by inversion driving for improving touch sensing performance, can be prevented.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: October 12, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: SungChul Kim, HoonBae Kim, SunYeop Kim, Seongkyu Kang
  • Patent number: 11145268
    Abstract: An active matrix substrate according to an embodiment of the present invention includes: a plurality of source bus lines provided on a substrate; a source driver disposed in a peripheral region; signal output lines each connected to a corresponding one of output terminals of the source driver; and a demultiplexer circuit disposed in a peripheral region. The demultiplexer circuit includes unit circuits each configured to distribute a display signal from one signal output line to n source bus lines (n is an integer larger than or equal to 2). Each unit circuit includes n switching TFTs configured to perform individual on/off control of electrical connections of the n branch lines to the n source bus lines. The n branch lines being connected to one signal output lines. The demultiplexer circuit further includes a plurality of boost circuits each configured to boost a voltage applied to a gate electrode of a corresponding one of the n switching TFTs.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: October 12, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Kaoru Yamamoto
  • Patent number: 11138940
    Abstract: A display device includes a scan driver which includes a first stage including a first output terminal connected to a first carry line, a second output terminal connected to a first scan line, and a third output terminal connected to a first sensing line, and a second stage including a first input terminal connected to the first carry line, a fourth output terminal connected to a second scan line, and a fifth output terminal connected to a second sensing line. In a sensing period, signals having a turn-on level are respectively output from the first output terminal, the second output terminal, and the third output terminal during a predetermined delay period before signals having a turn-on level are respectively output from the fourth output terminal and the fifth output terminal.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: October 5, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sang Su Han, Kyun Ho Kim, Jung Taek Kim, Joon Suk Baik, Se Keun Lee
  • Patent number: 11132966
    Abstract: A display device is disclosed. Plural subpixels are connected to the corresponding gate lines. Each data line is connected to two adjacent subpixels of same pixel. In the first pixel set, the first and the third gate lines are connected to subpixels in same column and the second and the fourth gate lines are connected to subpixels in same column. In the second pixel set, the first and the fourth gate lines are connected to subpixels in same column and the second and the third gate lines are connected to subpixels in same column. In one frame time, the data signal drives same pixel through the nth and (n+1)th data lines using opposite polarities and the data signal drives two adjacent subpixels of same pixel set in column direction through the nth and (n+1)th data lines using the same polarities.
    Type: Grant
    Filed: December 29, 2018
    Date of Patent: September 28, 2021
    Assignees: HKC CORPORATION LIMITED, CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Yan-Na Yang
  • Patent number: 11132942
    Abstract: A light-emitting diode (LED) display device includes a display part having LED elements arranged in a matrix structure including scan lines and data lines. The LED display device also includes a scan driver driving the scan lines and each of the scan lines is controlled using a discharge voltage at a discharge timing. The LED display device also includes a data compensation part which compensates driving data of each of the data lines to generate the compensation data of each of the data lines using a compensation value to compensate for a difference in luminous intensity slope of the LED element due to a difference in the number of luminescence data lines at the unit scan timing. Thus, a crosstalk phenomenon of the display image due to a difference in the number of data lines simultaneously sourced is decreased.
    Type: Grant
    Filed: November 3, 2020
    Date of Patent: September 28, 2021
    Assignee: TLI INC.
    Inventor: Jaegan Ko
  • Patent number: 11128818
    Abstract: A thermal image processing system and method includes capturing a visual image and a thermal image of a subject under test; fusing the visual image with the thermal image to result in a fused image, followed by determining an area of the subject under test in the fused image and accordingly obtaining subject temperature of the subject under test.
    Type: Grant
    Filed: January 2, 2018
    Date of Patent: September 21, 2021
    Assignee: Wistron Corporation
    Inventor: Hong Siou Chen
  • Patent number: 11127372
    Abstract: The present disclosure relates to a display device and a display method for reducing a burn-in phenomenon by performing an on-board artificial intelligence (AI) algorithm and/or machine learning algorithm to predict a display duration of an object in an image, and processing the image based on the predicted display duration. The display method according to one embodiment of the present disclosure may include extracting a predetermined type of object from an inputted image, predicting a display duration of the extracted object, and adjusting a luminance value of a pixel in an area corresponding to the object in the image based on the predicted display duration, and displaying the image in which the adjusted luminance value of the pixel is reflected.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: September 21, 2021
    Assignee: LG ELECTRONICS INC.
    Inventors: Dong Ho Kim, Yun Jun Choi, Seung Jong Choi, Sung Jin Kim
  • Patent number: 11127357
    Abstract: Techniques for implementing and/or operating an electronic device, which includes a display pixel that emits light to facilitate displaying an image during an emission period and a data driver coupled to the display pixel via a data line. The data driver generates a data line voltage signal based on image data that indicates target luminance of the display pixel in the image and supplies the data line voltage signal to the data line during a non-emission period preceding the emission period to facilitate writing the image to the display pixel. Additionally, the data driver supplies an intermediate voltage greater than a ground voltage to the data line during the emission period in which the image is displayed to facilitate reducing luminance variation in the image resulting from a leakage current flowing between an internal node of the display pixel and the data line during the emission period.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: September 21, 2021
    Assignee: APPLE INC.
    Inventors: Jie Won Ryu, Myungjoon Choi, Hyunsoo Kim, Hyunwoo Nho, Chin-Wei Lin, Shiping Shen, Kingsuk Brahma, Chaohao Wang, Shinya Ono, Alex H. Pai, Hassan Edrees
  • Patent number: 11120726
    Abstract: Embodiments of the present disclosure provide a method and device for driving a display panel, and a display device. The display panel includes a first display area having a first pixel density and a second display area having a second pixel density, the second pixel density being greater than the first pixel density. The driving method of the display panel comprises receiving first color gamut input data; converting the first color gamut input data corresponding to the first display area into second color gamut intermediate data; converting the second color gamut intermediate data into first color gamut output data; and converting the first color gamut output data into a driving signal that drives the first display area.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: September 14, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Hui Zhao, Wenjing Tan
  • Patent number: 11120749
    Abstract: A display device includes a driving circuit and a control circuit. The driving circuit is configured to receive a data voltage in response to a scanning signal, and to control the brightness of a light emitting element according to the data voltage. The control circuit is configured to provide a stop signal to the driving circuit in response to a digital signal and the scanning signal, so as to stop the light emitting element from emitting light, and in turn control the light emission period of the light emitting element.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: September 14, 2021
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Chun-Feng Lin, Kai-Wei Hong, Chuang-Cheng Yang, Yi-Cheng Lin, Ming-Hsien Lee
  • Patent number: 11114007
    Abstract: A display panel includes multiple data lines, a scan lines, pixel circuit and a driving circuit. The data lines are configured to receive multiple data signals in a display period. There is a buffer period before the display period. The scan line is configured to receive a scan signal during the display period. The pixel circuit is electrically connected to the data lines and the scan line for receiving the data signals and the scan signal. The driving circuit is electrically connected to the data line, and configured to receive multiple charging signals during the buffer period. The charging signals are corresponding to the data lines and gradually increase so that the driving circuit charges the data lines according to the charging signals.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: September 7, 2021
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Chun-Wei Chang, Jie-Chuan Huang
  • Patent number: 11107405
    Abstract: A pixel compensation circuit unit, a pixel circuit, and a display device are provided in the disclosure. The pixel compensation circuit unit may include a reset power supply line, a reset control circuit, a bridge circuit, and at least two pixel compensation circuits. The at least two pixel compensation circuits are coupled to the reset power supply line, respectively; the reset control circuit is coupled to the reset power supply line and the bridge circuit, respectively; and the at least two pixel compensation circuits are coupled by the bridge circuit. A plurality of pixel compensation circuits may share one reset power supply line, thereby reducing the number of reset power supply lines and simplifying the structure of the pixel compensation circuit unit.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: August 31, 2021
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Yuhsiung Feng
  • Patent number: 11106265
    Abstract: In an embodiment, a device may include an attention detection service. The attention detection service may monitor various peripheral devices in the device for indications that a user is paying attention to the device. Various clients may register for notification of attention detection and attention lost (attention no longer detected) events, or may poll the service for the events. If a user is not paying attention to the device, it may be possible to take various actions to permit reduced energy consumption.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: August 31, 2021
    Assignee: Apple Inc.
    Inventors: Benjamin Biron, Ronnie G. Misra, Christopher K. Thomas, Weijie Zhang, Roberto G. Yepez, Anthony J. Guetta, Kelsey Y. Ho, Paul W. Chinn, Myra Haggerty, Curtis Rothert, Peter D. Anton, Jonathan E. Drummond, Andrew B. Cato
  • Patent number: 11107385
    Abstract: A display device includes a timing controller which supplies a clock training signal through a data clock signal line and a first control signal through a shared signal line in a first period of one frame, and supplies image data through the data clock signal line in a second period of the one frame, a data driver provided with data driving circuits which generate a clock signal based on the clock training signal and the first control signal in the first period, and generate data voltages based on the clock signal and the image data in the second period, and a pixel part which receives the data voltages from the data driver. The data driver may supply a second control signal indicating a reception state of the data driver to the timing controller through the shared signal line in the second period.
    Type: Grant
    Filed: July 24, 2020
    Date of Patent: August 31, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Soo Yeon Kim, Ji Ye Lee, Hee Jeong Seo, Tae Gon Im, Jung Hwan Cho
  • Patent number: 11108385
    Abstract: There is provided a phase shifter circuit of an optical encoder that receives four signals generated from photodiodes. The phase shifter circuit includes four resistor strings each coupled to two of the four signals having a 90-degrees phase pitch. By taping out different numbers of signals at different tape-out nodes of each of the four resistor strings, the phase shifter circuit is adapted to output signals for different interpolation factors without changing the mask set.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: August 31, 2021
    Assignee: PIXART IMAGING INC.
    Inventors: Chung-Min Thor, Kuan-Choong Shim, Gim-Eng Chew
  • Patent number: 11100866
    Abstract: A pixel circuit and a driving method thereof, as well as a display device. The pixel circuit includes an initialization signal terminal, a scanning signal terminal, a data signal terminal, a first power supply terminal, a second power supply terminal, a reference voltage terminal a light-emitting signal control terminal, a reset signal terminal, a data writing sub-circuit, a threshold compensation sub-circuit, a light-emitting control sub-circuit, a reset sub-circuit, a storage capacitor, a driver transistor and a light-emitting element. The threshold compensation sub-circuit is configured to pre-store the threshold voltage of the driver transistor in the storage capacitor.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: August 24, 2021
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Haigang Qing, Weiyun Huang
  • Patent number: 11100839
    Abstract: The present disclosure relates to an electronic device that includes a display that has a plurality of scan lines. The display also includes a first data line that has a first number of pixels. The first data line forms a first number of crossovers with the plurality of scan lines. Additionally, the display includes a second data line that has a second number of pixels that is different than the first number of pixels. The second data line forms a second number of crossovers with the plurality of scan lines that is equal to the first number of crossovers.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: August 24, 2021
    Assignee: Apple Inc.
    Inventors: Shinya Ono, Chin-Wei Lin, Jie Won Ryu
  • Patent number: 11079638
    Abstract: In one example, a display device may include a display panel having a light guide plate, a printed circuit board (PCB) to generate a driving signal to drive the display panel, a driving integrated circuit (IC) mounted on the display panel to process the driving signal, a timing controller (TCON) integrated into the driving IC to control driving of the display panel, and a flexible printed circuit to electrically connect the driving IC and the PCB. The PCB may be disposed behind the driving IC.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: August 3, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Cheng-Hua Yu, Feng-Cheng Lin, Shan-Chih Chen, Chih-Ting Lai
  • Patent number: 11075227
    Abstract: A display substrate, a method for manufacturing the display substrate, and a display device are provided. The display substrate includes a display area and a fanout area at the periphery of the display area. The fanout area includes a data line layer, a first power line layer, and at least two insulation layers between the data line layer and the first power line layer. In a direction perpendicular to a base substrate of the display substrate, the first power line layer overlaps the data line layer. At least one of the at least two insulation layers includes a portion which insulates the first power line layer and the data line layer from each other.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: July 27, 2021
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jun Wang, Dongfang Wang, Haitao Wang, Guangyao Li, Yingbin Hu, Yang Zhang, Qinghe Wang, Liangchen Yan
  • Patent number: 11074881
    Abstract: A novel and highly convenient or reliable display panel is provided which includes a first driver circuit, a second driver circuit, a first scan line, a second scan line, and a first signal line. The first driver circuit supplies a selection signal. The second driver circuit supplies a predetermined voltage, first data using a voltage greater than or equal to the predetermined voltage, and second data using a voltage less than or equal to the predetermined voltage. The first scan line is selected in a first period. The second scan line adjacent to the first scan line is selected in a third period. The first signal line receives the first data in the first period, the predetermined voltage in a second period, and the second data in the third period. The second period is provided between the first period and the third period.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: July 27, 2021
    Inventors: Kei Takahashi, Susumu Kawashima
  • Patent number: 11069292
    Abstract: A pixel circuit for driving a light-emitting device for a display device is operable in an initialization phase, a compensation phase, a data programming phase, and an emission phase. The one horizontal time is minimized while maintaining accurate compensation of the threshold voltage of the drive transistor, and the pixel circuit further employs a varactor to compensate for variations in the threshold voltage of the drive transistor and for parasitic capacitances that arise within the pixel circuit. A capacitance of the varactor varies with a voltage at a node N1 constituting an electrical connection during the compensation phase of the drive transistor, the light-emitting device, a storage capacitor, and the varactor. The use of the capacitance variation of the varactor accounts for a variation in the threshold voltage of the drive transistor and for parasitic capacitances in the pixel circuit. The varactor may be implemented as a thin film transistor that operates as a variable capacitor.
    Type: Grant
    Filed: April 23, 2020
    Date of Patent: July 20, 2021
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Adnan Heganovic, Tong Lu, Michael James Brownlow
  • Patent number: 11068929
    Abstract: Methods and apparatus for conducting test promotions in a highly scalable and cost-effective manner using controlled experiment methodology are disclosed. Test promotions of interest are presented to visitors of a website in a controlled experiment manner wherein each page presents one test promotion of interest among other promotions. The other promotions presented in the same page are kept constant in the pages. The visitors' responses with respect to the test promotions of interest are then recorded and analyzed to determine the performance of each presented test promotion of interest.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: July 20, 2021
    Assignee: EVERSIGHT, INC.
    Inventor: David Moran
  • Patent number: 11062648
    Abstract: A display device includes M sets of light emitters and (M+1) sets of drivers, wherein M is a positive integer. Each set of the (M+1) sets of drivers is coupled to at least one set of the M sets of light emitters. When a first set of drivers among the (M+1) sets of drivers are configured to perform a sensing operation, M sets of drivers other than the first set of drivers among the (M+1) sets of drivers are configured to drive the M sets of light emitters, respectively.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: July 13, 2021
    Assignee: NOVATEK Microelectronics Corp.
    Inventor: Chun-Chi Chang
  • Patent number: 11056072
    Abstract: This application relates to a display device and a regulation method therefor. The display device includes a display panel and a drive circuit. The display panel includes a display area and a fan-out area. The display area is provided with a plurality of data lines, and the fan-out area is provided with a plurality of connection lines. The drive circuit includes: a detection circuit, configured to detect resistances of connection lines, where the connection lines include a first connection line and a second connection line; a plurality of source drive circuits, where an adjustable resistors is integrated inside the source drive circuit; and a control chip, configured to compare the resistances of the first connection line and the second connection line and output a control signal, where the source drive circuits adjust a resistance of the adjustable resistor according to the control signal.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: July 6, 2021
    Assignee: HKC Corporation Limited
    Inventor: Bin Qiu
  • Patent number: 11056061
    Abstract: The present disclosure relates to an array substrate, including a display area and a non-display area arranged around the display area. The display area includes a plurality of pixel circuits arranged in an array and a first signal line connecting to the pixel circuits. The non-display area includes at least one common circuit and a data driving chip. Each of the common circuits is connected to the pixel circuit through the first signal line, and is configured to provide an initialization signal and a data signal for the pixel circuit. The data driving chip is connected to the common circuit through a second signal line and a third signal line.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: July 6, 2021
    Assignee: KUNSHAN GO-VISIONOX OPTO-ELECTRONICS CO., LTD.
    Inventors: Longfei Fan, Hui Zhu
  • Patent number: 11049438
    Abstract: The present disclosure relates generally systems and methods for controlling current provided to display devices. A method for controlling the current may include receiving drive current values associated with subpixels in a display and receiving information that corresponds to an application type being rendered on the display and/or an indication of image data being rendered on the display. The method may then include reducing at least some of the drive current values based at least in part on the application type. Alternatively, the method may include reducing the at least a portion of the image data corresponding to the at least some of the drive current values has substantially similar luminance and color values. The method may then include supplying the subpixels with drive currents that correspond to the drive current values.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: June 29, 2021
    Assignee: Apple Inc.
    Inventor: Paul S. Drzaic
  • Patent number: 11049884
    Abstract: A display panel and a method of manufacturing same, the display module. The display panel includes a substrate; a signal wire layer disposed on the substrate. The signal wire layer includes a gate electrode layer and a source/drain electrode layer. The gate electrode includes a gate electrode and a scanning signal wire. The source/drain electrode layer includes a source electrode, a drain electrode, and a power drive wire. The display panel further includes a resistance-reduction wire disposed between the substrate and the source/drain electrode layer. The resistance-reduction wire is electrically connected to the power drive wire by a through hole.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: June 29, 2021
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventors: Liang Fang, Ding Ding
  • Patent number: 11043169
    Abstract: An organic light emitting display device includes: a first pixel region including first pixels coupled to first and second scan lines, and emission control lines; a first scan driver which supplies a first scan signal to each first scan line; a second scan driver which supplies a second scan signal to each second scan line; and an emission driver which supplies a light emission control signal to the emission control lines. The organic light emitting display device is in a second mode when the organic light emitting display device is mounted in a wearable device, and in a first mode otherwise. The second scan driver supplies k second scan signals to each second scan line in the first mode, and supplies j second scan signals to each second scan line in the second mode, where j is greater than k.
    Type: Grant
    Filed: January 6, 2020
    Date of Patent: June 22, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Chae Han Hyun, Seung Kyu Lee, Jung Hun Yi, Seon I Jeong
  • Patent number: 11042207
    Abstract: A power saving method includes enabling an input signal detection unit of the display controller for detecting a first presence of at least one input signal of the display controller, entering the display controller to a power-off mode temporarily for decreasing an operation power from a first power to a second power within a second time period when the at least one input signal is not received by the input signal detection unit within a first time period, detecting a second presence of the at least one input signal continuously by the input signal detection unit after the second time period elapses, and adjusting an operation mode of the display controller according to the second presence of the at least one input signal. The second power is smaller than the first power. The second power corresponds to a power of the display controller under the power-off mode.
    Type: Grant
    Filed: May 6, 2019
    Date of Patent: June 22, 2021
    Assignee: Qisda Corporation
    Inventors: Kao-Yang Wu, Chia-Hsiung Kuo
  • Patent number: RE48706
    Abstract: A driving circuit of a liquid crystal display panel includes a substrate, a plurality of driver IC chips located on the substrate, a current supplier, and a first conductive wire set. The first conductive wire set has a plurality of conductive wire segments for connecting the driver IC chips in parallel to the current supplier. Furthermore, the conductive wire segments each have a form, such that paths formed of the conductive wire segments from the current supplier to the respective driver IC chips have an equal resistance, and, accordingly, each of the driver IC chips obtain the same input voltage. Hence, a problem of band mura is avoided.
    Type: Grant
    Filed: July 9, 2015
    Date of Patent: August 24, 2021
    Assignee: Nytell Software LLC
    Inventors: Ming-Zen Wu, Chien-Chih Jen