Liquid Crystal Display Elements (lcd) Patents (Class 345/87)
  • Patent number: 11366366
    Abstract: The active matrix substrate includes gate lines, data lines, photoelectric conversion elements provided in pixels bounded by the gate lines and the data lines and electrically connected to the data lines, and a bias line that is connected to the photoelectric conversion elements and supplies a bias voltage to the photoelectric conversion elements. The active matrix substrate also includes first protection circuits connected to the data lines, second protection circuits connected to the gate lines, and third protection circuits connected to the bias line. Each of the first protection circuits, second protection circuits, and third protection circuits includes at least one nonlinear element. A nonlinear element in each first protection circuit has a higher resistance than a nonlinear element in at least one of each second protection circuit and each third protection circuit.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: June 21, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Hiroyuki Moriwaki
  • Patent number: 11367404
    Abstract: Embodiments of the present disclosure provide a device and a method for controlling backlight, and a display device. The device for controlling backlight, comprising: a first controlling circuit configured to receive a first power supply signal for controlling a display device to be turned on or off, and generate an output signal for causing a backlight module of the display device to be turned off, in response to the first power supply signal being in a first status for controlling the display device to be turned off; and a second controlling circuit configured to receive the first power supply signal, and generate an output signal for causing the backlight module to be turned on again after being kept in a turned off state for a predetermined time period, in response to the first power supply signal being in a second status for controlling the display device to be turned on.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: June 21, 2022
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jianting Wang, Zhanchang Bu, Shou Li, Hengyu Yan, Xiaokang Hou
  • Patent number: 11361718
    Abstract: An image processing device reduces power consumption of a backlight by lowering a dimming value through brightness distribution for pixels. The image data processing device includes: an image analyzing circuit configured to analyze original image data on a video image divided into a plurality of regions and calculate a representative brightness value for each region; a dimming value calculating circuit configured to calculate a dimming value for each region in order to adjust the brightness of a backlight according to the representative brightness value; a pixel analyzing circuit configured to analyze brightness distribution for a plurality of pixels in each region; a dimming control circuit configured to re-adjust the dimming value for one region according to the brightness distribution; and a dimming output circuit configured to output, to a backlight driving device, a dimming control signal for driving the backlight according to the dimming value.
    Type: Grant
    Filed: December 15, 2020
    Date of Patent: June 14, 2022
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Ji Won Lee, Jung Eun Baek, Xin Cui, Do Hoon Lee
  • Patent number: 11360595
    Abstract: A touch display device, including a substrate and multiple light-emitting units bonded to the substrate, is provided. Each of the multiple light-emitting units includes at least one light-emitting element. A first light-emitting unit of the multiple light-emitting units includes at least one sensing element. In the first light-emitting unit, the at least one sensing element is located between the at least one light-emitting element and the substrate. The orthographic projection of the at least one sensing element on the substrate overlaps the orthographic projection of the at least one light-emitting element on the substrate.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: June 14, 2022
    Assignee: Au Optronics Corporation
    Inventors: Guan-Wu Chen, Chun-Yen Kuo
  • Patent number: 11361721
    Abstract: Disclosed are a method and a device for driving a display panel, and a display device. The method includes: S200, detecting a frequency of a data output control signal TP1 when data is transmitted for the display panel, recording and storing the frequency as a first frequency F1; S300, judging whether the data output control signal TP1 works in a preset working time; S400, detecting a frequency of the data output control signal when the data output control signal TP1 works in the preset working time, recording and storing the frequency as a second frequency F2; and S600, calculating a frequency of a polarity control signal according to the first frequency F1 and the second frequency F2, and generating the polarity control signal according to the calculated frequency to drive the display panel.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: June 14, 2022
    Assignees: HKC CORPORATION LIMITED, CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Mingliang Wang
  • Patent number: 11362151
    Abstract: A display apparatus may include a first plurality of pixels, a substrate, a first signal line, and a load matching device. The substrate may include a first opening, a first non-display area, and a main display area. The first non-displaying area may at least partially surround the first opening. The main display area may support the first plurality of pixels. The first signal line may be electrically connected to the first plurality of pixels, may overlap the main display area, and may overlap the first non-display area. The load matching device may overlap the first non-display area and may provide a first electrical load to the first signal line.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: June 14, 2022
    Inventors: Seung-Lyong Bok, Sunho Kim
  • Patent number: 11355046
    Abstract: The GOA circuit includes a plurality of GOA units independent of each other, wherein each of the plurality of GOA units comprises an enable module and a drive module disposed corresponding to the enable module; wherein the enable module includes a row address signal input terminal configured to receive a row address signal, and an enable signal output terminal configured to output an enable signal based on the row address signal; and the drive module includes an enable signal input terminal configured to receive the enable signal output by the enable signal output terminal, and a drive signal output terminal configured to output a drive signal based on the enable signal, wherein the drive signal output terminal is connected to a gate line of a row disposed corresponding to the drive module to transmit the drive signal to the gate line of the row and gate the row.
    Type: Grant
    Filed: April 9, 2021
    Date of Patent: June 7, 2022
    Assignee: Shenzhen Royole Technologies Co., Ltd.
    Inventor: Ximeng Guan
  • Patent number: 11354003
    Abstract: A device for spatially resolving a projected capacitive touch detection. The device includes an electrically insulating substrate with a first and a second type of electrically conductive surfaces, and a through-hole. The first type of electrically conductive surfaces are connected in rows to form transmitting electrodes. The second type of electrically conductive surfaces are connected in columns to form receiving electrodes. The first type of electrically conductive surfaces includes non-deformed first type of electrically conductive surfaces and deformed first type of electrically conductive surface(s). The second type of electrically conductive surfaces includes non-deformed second type of electrically conductive surfaces and deformed second type of electrically conductive surface(s). The first type of electrically conductive surfaces and the second type of electrically conductive surfaces are arranged in an alternating manner.
    Type: Grant
    Filed: January 26, 2021
    Date of Patent: June 7, 2022
    Assignee: PREH GMBH
    Inventors: Rainer Schlegelmilch, Jochen Schlereth
  • Patent number: 11356113
    Abstract: A digital-to-analog conversion circuit includes: a decoder that, if set to a first selection state, selects two different reference voltages from a reference voltage group on the basis of a digital data signal and outputs the two reference voltages as first and second selection voltages, and if set to a second selection state, selects two reference voltages from the reference voltage group in a manner allowing redundancy and outputs the two reference voltages as the first and second selection voltages; and an amplifier circuit that amplifies and outputs a voltage obtained by averaging a combination of the first and second selection voltages with weighting factors set in advance.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: June 7, 2022
    Assignee: LAPIS SEMICONDUCTOR CO., LTD.
    Inventor: Hiroshi Tsuchi
  • Patent number: 11348546
    Abstract: A driving method of a display panel includes: dividing a plurality of sub-pixels arranged in a matrix into a plurality of sub-pixel column sets, wherein each of the sub-pixel column sets comprises neighboring two columns of sub-pixels, a data line is disposed between the neighboring two columns of sub-pixels, and the neighboring two columns of sub-pixels are electrically connected to the data line; setting the row-adjacent sub-pixels to have opposite polarities; performing a first charge on a target sub-pixel in a first predetermined time period; and performing a second charge on the target sub-pixel in a second predetermined time period, while performing a first charge on a next sub-pixel electrically connected to the same data line electrically connected to the target sub-pixel, and has the polarity the same as the polarity of the target sub-pixel.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: May 31, 2022
    Assignees: HKC CORPORATION LIMITED, CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Shuixiu Hu
  • Patent number: 11347706
    Abstract: A cryptographic system having a plurality of rotors or electronic equivalents using displacement tables. A rotor movement controller, in accordance with a rotor selection value, selectively moves one or more of the rotors or the electronic equivalent of the rotors for each data input value. Contiguous rotor selection values have a triangle or sawtooth shape. A key-driven displacement look-up table randomizes the selection values. The rotor wirings or displacement tables each have N displacement values. The N displacement values are one to N?1 inclusive once and N/2 twice and arranged in a sequence that forms a single loop. Additionally, the N displacement values may be arranged in a sequence that is self-reciprocal so that no change in the rotors or displacement tables is needed whether encrypting or decrypting except for selectively adding a factor of N/2 when indexing the displacement tables or setting the initial position of the rotors.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: May 31, 2022
    Inventor: Scott W. McLellan
  • Patent number: 11342362
    Abstract: A display device includes an active matrix substrate, wherein the active matrix substrate is layered with a base insulating film, a first metal layer, a metal oxide layer, a first inorganic insulating film, an oxide semiconductor layer, a second inorganic insulating film, a second metal layer, an interlayer insulating layer, and a third metal layer in order from a lower layer, and the active matrix substrate includes a first transistor configured of a first bottom gate electrode, a top gate electrode, and a source electrode and a drain electrode formed by the third metal layer, the source electrode and the drain electrode are respectively electrically connected to a source region and a drain region of the oxide semiconductor layer, the first bottom gate electrode is overlapped with the oxide semiconductor layer, and a metal of the first metal layer is different from a metal of the metal oxide layer.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: May 24, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Izumi Ishida, Hirohiko Nishiki, Yujiro Takeda
  • Patent number: 11341929
    Abstract: The present application discloses a driving method, a display panel and a driving circuit. The driving method includes a step of outputting a gate driving signal to a corresponding gate line. A signal period of a common level signal of a common line includes a first time and a second time, the first time corresponds to a first common level, and the second time corresponds to a second common level; a voltage value of the first common level is less than that of the second common level; for a common line corresponding to the Nth gate line, a start moment of the first time is no later than an open moment of the corresponding Nth gate line, and a start moment of the second time is no earlier than a close moment of the (N+1)th gate line.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: May 24, 2022
    Assignee: HKC CORPORATION LIMITED
    Inventor: Jianfeng Shan
  • Patent number: 11341926
    Abstract: Disclosed are a backlight module, a control method therefor and a display device, a driving method therefor. A backlight source is divided into light-emitting areas, and a current control circuit for driving the light-emitting area to emit light is configured for each light-emitting area. The light-emitting areas in the backlight module are arranged in one-to-one correspondence to the current control circuits.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: May 24, 2022
    Assignees: Beijing BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Zhenghua Lu, Zongze He, Zhiming Meng, Shuo Li, Jianguang Yang, Zhipeng Feng, Liang Zhang, Yuxuan Chen, Feng Long
  • Patent number: 11342539
    Abstract: A display device includes a window; a display panel including: a flat portion corresponding to the display area, and a bending portion extending from the flat portion and at which the display panel is bendable; a circuit substrate connected to the display panel at the bending portion; and a protection film disposed facing the window with the display panel therebetween. The window and the display panel each include a first side surface corresponding to the bending portion, and remaining side surfaces except for the first side surface, and the remaining side surfaces of the window and the display panel are respectively aligned with each other to define a total planar area of the window being equal to a total planar area of the flat portion.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: May 24, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seoin Han, Bonjoo Koo, Namseok Baik
  • Patent number: 11341900
    Abstract: Disclosed is a display device including a power transformer converting an input voltage into a specified voltage, a display driver including a rectifier rectifying a voltage converted through the power transformer and a converter converting a voltage rectified through the rectifier based on a control signal for outputting an image, and a display panel receiving a converted voltage through the display driver to display the image. The display driver may include a voltage drop unit dropping a voltage input through the rectifier. Other various embodiments as understood from the specification are also possible.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: May 24, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Shinwook Choi, Youngsoo Kim, Kangmoon Seo
  • Patent number: 11335714
    Abstract: The present disclosure provides a display substrate and a display device. A display substrate provided by an embodiment of the present disclosure includes: a display region and a peripheral region surrounding the display region; the display region includes: a plurality of gate lines, a plurality of data lines, and a plurality of pixel units, and each of the plurality of pixel units includes a driving transistor and a pixel electrode that are connected to each other; the peripheral region includes: signal lines and at least one electrostatic discharge structure for performing electrostatic discharge on the signal lines.
    Type: Grant
    Filed: October 23, 2019
    Date of Patent: May 17, 2022
    Assignees: Beijing BOE Technology Development Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Pan Li, Xinyin Wu, Yong Qiao
  • Patent number: 11336943
    Abstract: A method and an electronic device for detecting the resolution of a video material are provided. The method is applied to an electronic device, and a calculation circuit of the electronic device executes an AI model. The video material includes multiple frames, and each frame includes multiple sub-frames. The AI model processes multiple pixel data to generate an intermediate resolution corresponding to the pixel data. The method includes the following steps: (A) generating a target sub-frame, the number of pixels of the target sub-frame being smaller than the number of pixels in any frame; (B) inputting the target sub-frame into the AI model to generate the intermediate resolution; (C) storing the intermediate resolution; (D) repeating steps (A) to (C) to generate multiple intermediate resolutions; and (E) determining the resolution of the video material based on the intermediate resolutions.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: May 17, 2022
    Assignee: REALTEK SEMICONDUCTOR CORPORATION
    Inventors: Ching-Lung Chen, Yu-Che Kao
  • Patent number: 11335288
    Abstract: A control chip configured to be coupled with a backlight driving chip and a display panel is provided. The control chip includes a storage element and a processing circuit. The storage element is configured to store a predetermined vertical refresh rate of the display panel. The processing circuit is coupled with the storage element, and is configured to provide a switching signal to the backlight driving chip so that the backlight driving chip enables a backlight module according to the switching signal. A frequency of the switching signal is equal to the predetermined vertical refresh rate. If the processing circuit has not received a vertical refresh starting pulse for more than a predetermined frame time corresponding to the predetermined vertical refresh rate, the processing circuit increases the frequency of the switching signal.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: May 17, 2022
    Assignee: REALTEK SEMICONDUCTOR CORPORATION
    Inventor: Li-Ang Chen
  • Patent number: 11322079
    Abstract: A display control method includes: obtaining a delay instruction from a processor, in which the delay instruction includes a delay duration required to display a current image frame; determining a plurality of control pulses required to display the current image frame according to the delay duration, in which duty cycles of the plurality of the control pulses are identical; and when a synchronization signal is received, generating each of the plurality of the control pulses sequentially, in which the control pulse is configured to control an active-matrix organic light-emitting diode (AMOLED) display for dimming and displaying.
    Type: Grant
    Filed: July 17, 2020
    Date of Patent: May 3, 2022
    Assignee: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
    Inventor: Tsangchih Wu
  • Patent number: 11315497
    Abstract: A gate driving circuit and an image display device including the gate driving circuit are provided. In some embodiments of the present disclosure, the gate driving circuit includes a plurality of stages configured to sequentially and repeatedly output a plurality of scan pulses having different pulse widths in response to a gate control signal applied from a timing controller and the plurality of stages sequentially generate the plurality of scan pulses having different pulse widths and phase-delayed in response to three-phase clock pulses among the gate control signals and sequentially supply the plurality of scan pulses to gate lines of a display panel to selectively adjust a light emission period or a color display period for each red pixel, green pixel, and blue pixel, thereby improving image quality.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: April 26, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Jaesung Yu, Chungsik Kong, Sewan Lee, Juhnsuk Yoo, Jungsoo Park, Mihee Shin
  • Patent number: 11314130
    Abstract: A display device includes: a first substrate; a second substrate overlapping the first substrate; a common electrode disposed on the second substrate; a column spacer disposed between the pixel electrode and the common electrode; and a plurality of pixels. Each of the plurality of pixels includes a transistor disposed on the first substrate and a pixel electrode electrically connected to the transistor through a hole. The display device further includes a plurality of column spacers disposed between the pixel electrode and the common electrode. The plurality of column spacers include a main spacer having a first height and a sub-spacer having a second height that is different from the first height. At least one of the main spacer and the sub-spacer includes a first spacer having a first planar area and a second planar spacer having a second planar area that is different from the first planar area.
    Type: Grant
    Filed: June 2, 2020
    Date of Patent: April 26, 2022
    Inventors: Jun Bo Sim, Ju Yong Park, Da Young Lee, Jeong Uk Heo
  • Patent number: 11315509
    Abstract: A driving method for a liquid crystal display device is provided. The liquid crystal display device has a wide viewing angle mode and a narrow viewing angle mode. The driving method includes: in the wide viewing angle mode, all the frames of the liquid crystal display device have the same display brightness; in the narrow viewing angle mode, the odd frames and the even frames of the liquid crystal display device have different display brightness. In the narrow viewing angle mode of the liquid crystal display device, by using an alternate driving method of bright frames and dark frames, the mura degree is significantly reduced, and the smoothness of dynamic picture display is improved, thereby improving the use experience of users.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: April 26, 2022
    Assignee: INFOVISION OPTOELECTRONICS (KUNSHAN) CO., LTD.
    Inventors: Yanbing Qiao, Xiaoneng Yan, Te-Chen Chung, Chia-Te Liao
  • Patent number: 11315483
    Abstract: Systems, devices, and methods for tracking eye movement and gaze direction using infrared light are described. The method includes projecting infrared light from at least one pixel in the display screen to the eye of the user, detecting a plurality of reflections of the infrared light from the eye, determining the relative intensity of each of the plurality of the reflections, identifying, from the plurality of reflections, a region of the eye that corresponds to a relatively low intensity reflection, and determining a position of the eye based on the region of the eye that corresponds to the relatively low intensity reflection.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: April 26, 2022
    Assignee: Google LLC
    Inventor: Martin Joseph Kiik
  • Patent number: 11308904
    Abstract: The data driver of the display panel of the present disclosure is configured to control an output mode of a data signal, and the output mode includes a first drive mode and a second drive mode. In different frames, data signals are outputted according to the first drive mode and second drive mode, respectively.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: April 19, 2022
    Assignee: HKC CORPORATION LIMITED
    Inventor: Zhi Xiong
  • Patent number: 11308830
    Abstract: The disclosure provides a display driving device and an operation method thereof. The display driving device includes a timing controller circuit and a driving circuit. The timing controller circuit performs oblique filter processing on an original image frame to generate a processed image frame. The driving circuit is coupled to the timing controller circuit to receive the processed image frame. The driving circuit drives a display panel module according to the processed image frame. The display panel module includes a tilt lenticular lens layer having a first tilt angle. A second tilt angle of a filter mask of the oblique filter processing corresponds to the first tilt angle.
    Type: Grant
    Filed: March 16, 2021
    Date of Patent: April 19, 2022
    Assignee: Acer Incorporated
    Inventors: Jui-Lin Chen, Chao-Shih Huang
  • Patent number: 11307472
    Abstract: A display panel and a display device are provided. The display panel includes a plurality of pixel units, which includes a first pixel unit and a second pixel unit. The first and second pixel units are adjacently arranged in a vertical direction. The first pixel unit includes a first subpixel, and the second pixel unit includes a second subpixel corresponding to the first subpixel. The first subpixel includes a first region and a second region which are vertically arranged. The second region arranged closer to the second subpixel with respect to the first region includes a third region. A transmittance of the first region is smaller than a transmittance of the second region, and the ratio of the area of the second region to the area of the third region is smaller than or equal to 4:6 and greater than or equal to 3:7.
    Type: Grant
    Filed: September 27, 2020
    Date of Patent: April 19, 2022
    Assignee: HKC CORPORATION LIMITED
    Inventor: Huailiang He
  • Patent number: 11295694
    Abstract: A display device, comprising: a power supply chip configured to output a gate-on voltage; a gamma chip configured to output a gamma voltage; a detection resistor having a first terminal and a second terminal, wherein the first terminal is grounded; a display panel comprising a plurality of sub-pixels, a plurality of driving transistors, and at least one detection transistor; a control circuit electrically connected to the second terminal of the detection resistor, and configured to control the gamma chip to increase the output of the gamma voltage when a voltage of the detection resistor decreases.
    Type: Grant
    Filed: May 6, 2020
    Date of Patent: April 5, 2022
    Assignees: CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD., HKC CORPORATION LIMITED
    Inventor: Mingliang Wang
  • Patent number: 11295679
    Abstract: A method and apparatus for compensating view chromatic aberration of a display device, and a display device are provided, which includes: receiving an inputted image, obtaining a first pixel voltage and a second pixel voltage of each of pixels in two adjacent frames of the image, looking-up the first pixel voltage and the second pixel voltage and obtaining a corresponded first driving signal and a corresponded second driving signal, individually, computing a brightness compensation signal required in a backlight module of a backlight region based on the first driving signal, the second driving signal and a predetermined standard brightness signal, and compensating view chromatic aberration of a post frame of the image based on the brightness compensation signal.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: April 5, 2022
    Assignees: HKC Corporation Limited, Chongqing HKC Optoelectronics Technology Co., Ltd.
    Inventor: Chia-Hang Lee
  • Patent number: 11295690
    Abstract: The present disclosure provides a display device. The display device includes a display panel including each of gate lines extending in a first direction, each of sub-gate lines which extends in a second direction crossing the first direction and is electrically connected to the gate line, each of first data lines, each of second data lines, each of first pixels, and each of second pixels, and a driving circuit for providing a gate signal and data signals, wherein a second capacitance between a second drain electrode and a second gate electrode of the second pixel is greater than a first capacitance between a first drain electrode and a first gate electrode of the first pixel.
    Type: Grant
    Filed: November 3, 2020
    Date of Patent: April 5, 2022
    Inventors: Huigyeong Yun, Junghwan Hwang
  • Patent number: 11287710
    Abstract: According to an embodiment, a liquid crystal display apparatus includes a plurality of sense amplifiers for amplifying respective potential differences between a plurality of positive-polarity pixel drive voltages read out from a plurality of pixels of a row to be inspected to a plurality of first data lines and a plurality of negative-polarity pixel drive voltages read out from the plurality of pixels of the row to be inspected to a plurality of second data lines, each of the pixels including a switch transistor for switching whether a positive-polarity pixel drive voltage applied to a pixel drive electrode is output to a corresponding first data line, and a switch transistor for switching whether a negative-polarity pixel drive voltage applied to the pixel drive electrode is supplied to a corresponding second data line.
    Type: Grant
    Filed: January 25, 2021
    Date of Patent: March 29, 2022
    Assignee: JVCKENWOOD CORPORATION
    Inventor: Takayuki Iwasa
  • Patent number: 11282467
    Abstract: A display device includes a display panel, a gate driving circuit and a source driving circuit. The display panel includes multiple sub-pixels arranged in multiple rows and multiple columns. Three first sub-pixels of the sub-pixels have different colors and constitute one pixel. The first sub-pixels are disposed in the same column. The gate driving circuit is electrically connected to multiple gate lines. The number of the gate lines is less than the number of the rows. Each of the gate lines corresponds to at least two of the rows. Each of the gate lines is electrically connected to at least two of the sub-pixels in each of the columns. The source driving circuit is electrically connected to multiple data lines. The number of the data lines is greater than the number of the columns. Each of the columns corresponds to at least two of the data lines.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: March 22, 2022
    Assignee: HIMAX TECHNOLOGIES LIMITED
    Inventors: Yi-Ping Tu, Ming-Hung Weng, Cheng-Che Tsai, Yao-Chieh Li
  • Patent number: 11276373
    Abstract: Various embodiments are generally directed to techniques to partition a display interface such that pixel data associated with display data having indications of an image to be displayed may be transmitted to multiple timing controller and driver (TCON-DR) sets over the display interface without necessitating each TCON-DR set receive all the pixel data. In some examples, the display interface may be partitioned such that each TCON-DR set receives only the pixel data for which the respective TCON-DR set corresponds to.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: March 15, 2022
    Assignee: INTEL CORPORATION
    Inventor: Seh W. Kwa
  • Patent number: 11271067
    Abstract: A conductive line for a display device may include a first layer including aluminum (Al) or an aluminum alloy, a second layer disposed on the first layer, the second layer including titanium nitride (TiNx), and a third layer disposed on the second layer, the third layer including titanium (Ti) and having a multilayer structure including a plurality of stacked sub-layers.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: March 8, 2022
    Inventors: Sukyoung Yang, Sangwoo Sohn, Dokeun Song, Dongmin Lee, Sangwon Shin, Hyuneok Shin, Kyeong Su Ko, Sang Gab Kim, Joongeol Lee
  • Patent number: 11259384
    Abstract: The present invention provides a backlight unit and a control method thereof, and a liquid crystal display device. The control method includes steps as follows: obtaining backlight data corresponding to each partition, wherein the backlight data comprises a plurality of bits of data; dividing the light-emitting unit of each partition into a plurality of subfields with different durations in a light-emitting process during a frame, wherein each subfield corresponds to one bit of data, and any two subfields comprise different numbers of secondary subfields; and outputting the plurality of subfields in a preset order.
    Type: Grant
    Filed: May 9, 2020
    Date of Patent: February 22, 2022
    Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Fuyi Wang, Mingjong Jou, Zhao Wang, Fengcheng Xu, Jinfeng Liu
  • Patent number: 11256135
    Abstract: A display system includes a backlight configured to project light including a housing and one or more light emitting elements received in the housing and one or more reflective portions disposed on the housing. A first display unit is disposed proximate the backlight includes a liquid crystal layer and at least one reflective polarizer. A second display unit is disposed proximate the first display unit. The second display unit includes a TFT display layer and at least one linear polarizer. At least one microcontroller is in communication with one or more of the backlight, the first display unit and the second display unit. The at least one microcontroller executes instructions to adjust the liquid crystal layer of the first display unit between a first transmissive state and a second transmissive state.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: February 22, 2022
    Assignee: Visteon Global Technologies, INC.
    Inventors: Paul Fredrick Luther Weindorf, David M. Whitton
  • Patent number: 11256412
    Abstract: An interactive touch display assembly is provided and includes a circuit board and a user interface. The circuit board includes a first control module. The user interface includes a 7-segment display and a first capacitive keyboard. The 7-segment display is connected to the circuit board. The first capacitive keyboard is overlaid on at least a portion of the 7-segment display and includes a capacitive sensing layer having capacitive sensing elements. States of the capacitive sensing elements changes based on gestures provided by a user of the interactive touch display assembly. The first control module is configured to control operation of the 7-segment display based on detected changes in the states of the capacitive sensing elements.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: February 22, 2022
    Assignee: Dixell S.r.l.
    Inventors: Redi Fornasier, Dino D'Inca, Manlio Poto, Marcello Venier, Sandra Tome, Enrico Del Bene
  • Patent number: 11257458
    Abstract: Provided are a driving device and driving method for a display panel. The driving method comprises: firstly, acquiring a target voltage of a first voltage module; secondly, comparing the target voltage with a first pre-set voltage so as to obtain a comparison result; then, the first voltage module outputting, based on the comparison result and the first pre-set voltage, a first common voltage, and sending the comparison result to a second voltage module; finally, the second voltage module outputting, according to the comparison result and a second pre-set voltage, a second common voltage.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: February 22, 2022
    Assignee: HKC CORPORATION LIMITED
    Inventor: Mingliang Wang
  • Patent number: 11257448
    Abstract: The present invention provides a liquid crystal display device and a control method thereof. The liquid crystal display device includes a first liquid crystal panel and a second liquid crystal panel disposed thereon. The control method of the liquid crystal display device includes following steps of: disposing an applied pixel voltage level of a first liquid crystal panel, selecting a pixel voltage level of the first liquid crystal panel, and displaying grayscale.
    Type: Grant
    Filed: December 24, 2019
    Date of Patent: February 22, 2022
    Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Jiangchuan Chen
  • Patent number: 11252849
    Abstract: An electronic display has a housing with different regions and a display panel with a display surface. A cooling module flows internal coolant through the cooling module and the regions. The cooling module has a crossflow heat-exchanger and side walls. The regions and cooling module have an coolant inlet and outlet. The coolant inlets of the regions communicate with the coolant outlet of the cooling module. The coolant outlets of the regions communicate with the coolant inlet of the cooling module. The regions have their own circulating loop of coolant, with flow of coolant being deflected from the outlet of the cooling module towards the coolant inlets of the regions, and flow of coolant from the coolant outlets of the regions being deflected towards the coolant inlet of the cooling module. The coolant flows in parallel over both front and back of the display panel.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: February 15, 2022
    Assignee: Amscreen Group Limited
    Inventors: Stephen Whitehead, Jonathan Shires, Gary Greenwood, Peter Francis
  • Patent number: 11250746
    Abstract: The display apparatus includes a plurality of sub-pixels. The control method includes: calculating a compensation data signal of each compensation sub-pixel according to a position of at least one dead sub-pixel adjacent to the compensation sub-pixel in the display apparatus, a data signal of each dead sub-pixel adjacent to the compensation sub-pixel in a current frame image, and a number of compensation sub-pixels in all sub-pixels that have a same emission color as and are adjacent to each dead sub-pixel; calculating a total data signal for the compensation sub-pixel according to a data signal of the compensation sub-pixel in the current frame image and the calculated compensation data signal of the compensation sub-pixel; and inputting the total data signal to the compensation sub-pixel when the current frame image is displayed.
    Type: Grant
    Filed: December 25, 2019
    Date of Patent: February 15, 2022
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xing Zhou, Guangdong Shi, Kun Lu
  • Patent number: 11249224
    Abstract: A liquid crystal element (100) refracts and outputs light. The liquid crystal element (100) includes a first electrode (1), a second electrode (2), an insulating layer (21) that is an electric insulator, a resistance layer (22), a liquid crystal layer (23) including liquid crystal, and a third electrode (3). The insulating layer (21) is disposed between each location of the first and second electrodes (1) and (2) and the resistance layer (22) to insulate the first and second electrodes (1) and (2) from the resistance layer (22). The resistance layer (22) has an electrical resistivity higher than that of the first electrode (1) and lower than that of the insulating layer (21). The resistance layer (22) and the liquid crystal layer (23) are disposed between the insulating layer (21) and the third electrode (3). The resistance layer (22) is disposed between the insulating layer (21) and the liquid crystal layer (23).
    Type: Grant
    Filed: July 24, 2020
    Date of Patent: February 15, 2022
    Assignee: OSAKA UNIVERSITY
    Inventors: Giichi Shibuya, Hiroyuki Yoshida, Masanori Ozaki
  • Patent number: 11231605
    Abstract: A switchable anti-peeping device and a manufacturing method thereof, and a display device are provided. The switchable anti-peeping device, including a first substrate and a second substrate provided opposed to each other and a light control layer therebetween, wherein the first substrate includes a first base substrate, and a first light orientation layer and a first electrode layer which are provided on the first base substrate, and the second substrate includes a second base substrate, and a second electrode layer provided on the second base substrate, and the first light orientation layer defines an angle of emergence of light passing through the first light orientation layer, and the light control layer is capable of switching between a transparent state and a scattering state. The switchable anti-peeping device can achieve switching between a wide viewing angle and a narrow viewing angle, thereby meeting real-time requirements of people in different situations.
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: January 25, 2022
    Assignee: BOE Technology Group Co., Ltd.
    Inventor: Wenbo Li
  • Patent number: 11232756
    Abstract: An electroluminescent display device having a plurality of pixels is disclosed. Each pixel includes a driving transistor having a gate connected to a first node, a source connected to a third node, and a drain connected to a fourth node, to generate pixel current corresponding to a data voltage when a high-level source voltage is applied to the third node, a light emitting element connected between the fourth node and an input terminal for a low-level source voltage, an internal compensator including first and second capacitors, and switching transistors, and a kick-back compensation transistor to apply a DC voltage higher than an initialization voltage to the first node in a kick-back compensation period between an initialization period and a data writing period.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: January 25, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Hyung-Uk Jang, Chul Nam, Byeong-Seong So, Young-Sung Cho
  • Patent number: 11227518
    Abstract: A display device includes a display panel having a display area and a peripheral area. The display device includes a circuit having a comparator, and first and second sense wires disposed in the peripheral area and connected to the circuit. The comparator compares a first output signal output from the first sense wire and a second output signal output from the second sense wire to generate a comparison result. The circuit determines whether a defect is present in the display device based on the comparison result.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: January 18, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kwang Sae Lee, Jung Hoon Shim, Won Kyu Kwak, Ki Myeong Eom
  • Patent number: 11226693
    Abstract: A display device includes a display panel and a touch sensor which is disposed on the display panel. The display panel includes a display unit including a pixel, a driving circuit unit disposed outside the display unit, and a first static electricity blocking layer disposed on the driving circuit unit. The touch sensor includes sensing electrodes disposed on the display unit and a second static electricity blocking layer disposed overlapping the first static electricity blocking layer outside of the sensing electrodes.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: January 18, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventor: Yong Jae Park
  • Patent number: 11227555
    Abstract: A display device includes a display panel including a plurality of pixels, a data driver which provides data signals to the plurality of pixels, and a controller which controls the data driver. The controller writes frame data to a frame memory, reads the frame data in each of a plurality of frame periods, performs in a first frame period of the plurality of frame periods a still image detection operation that determines whether the frame data represent a still image, and does not performs the still image detection operation in a second frame period of the plurality of frame periods subsequent to the first frame period.
    Type: Grant
    Filed: February 9, 2021
    Date of Patent: January 18, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Se Hyuk Park, Hong Soo Kim, Jin Young Roh, Hyo Jin Lee, Jae Keun Lim
  • Patent number: 11222595
    Abstract: A gate driving circuit includes: a plurality of stages, a k-th stage from among the plurality of stages, the k-th stage including: an input circuit to receive a previous carry signal and to pre-charge a first node; a first output circuit to output a k-th gate signal; a second output circuit to output a k-th carry signal; a discharge hold circuit to transmit a clock signal to a second node, and to discharge the second node with a second low voltage; a first pull down circuit to discharge the k-th gate signal with a first low voltage, and to discharge the first node and the k-th carry signal with the second low voltage; and a discharge circuit for discharging the k-th carry signal with the second low voltage in response to the previous carry signal.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: January 11, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jaehoon Lee, Bonghyun You, Soo-yeon Lee, Seokha Hong
  • Patent number: 11222605
    Abstract: A circuitry for controlling a backlight module, the circuitry includes a local dimming control circuit and a backlight control circuit. The local dimming control circuit is configured to generate local dimming data based on image data and an arrangement of a plurality of light emitting units of the backlight module, in which the local dimming data includes a first local dimming data corresponding to a first light emitting unit of the plurality of light emitting units and a second local dimming data corresponding to a second light emitting unit of the plurality of light emitting units, and the number of bits of the first local dimming data is different from the number of bits of the second local dimming data. The backlight control circuit is configured to control the backlight module to irradiate backlight based on the local dimming data.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: January 11, 2022
    Assignee: HIMAX TECHNOLOGIES LIMITED
    Inventors: Chih-Ying Lin, Chia-Wei Tsai
  • Patent number: 11215862
    Abstract: According to one embodiment, an electronic equipment includes a liquid crystal panel including a display portion, a polarizer superposed on the display portion, and a detection element superposed on the liquid crystal panel and the polarizer to detect infrared rays through the liquid crystal panel and the polarizer.
    Type: Grant
    Filed: January 20, 2021
    Date of Patent: January 4, 2022
    Assignee: Japan Display Inc.
    Inventors: Akio Takimoto, Toshiki Kaneko, Takuo Kaitoh, Kazuhiro Nishiyama, Hiroyuki Kimura