Specific Display Element Control Means (e.g., Latches, Memories, Logic) Patents (Class 345/98)
  • Patent number: 10733929
    Abstract: An integrated circuit, a mobile phone and a display are provided with the integrated circuit. The integrated circuit includes a substrate, a data distributor and a data driver distributed on the substrate. A power line trace gap is provided within the data distributor; a first data line connected to the data driver and to the data distributor; and a first power line connected to the data driver and passing through the power line trace gap.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: August 4, 2020
    Assignees: Kunshan New Flat Panel Display Technology Center Co., Ltd., Kunshan Go-Visionox Opto-Electronics Co., Ltd.
    Inventors: Tingting Zhang, Yanqian Song, Siming Hu, Hui Zhu, Li Lin
  • Patent number: 10725954
    Abstract: Embodiments of the present invention are directed to a microcontroller device having a microprocessor, programmable memory components, and programmable analog and digital blocks. The programmable analog and digital blocks are configurable based on programming information stored in the memory components. Programmable interconnect logic, also programmable from the memory components, is used to couple the programmable analog and digital blocks as needed. The advanced microcontroller design also includes programmable input/output blocks for coupling selected signals to external pins. The memory components also include user programs that the embedded microprocessor executes. These programs may include instructions for programming the digital and analog blocks “on-the-fly,” e.g., dynamically. In one implementation, there are a plurality of programmable digital blocks and a plurality of programmable analog blocks.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: July 28, 2020
    Assignee: Monterey Research, LLC
    Inventors: Warren S. Snyder, Monte Mar
  • Patent number: 10720120
    Abstract: A source driver and a display device including the same includes a latch unit to store data, a digital-to-analog conversion (DAC) unit to convert the stored data into an analog signal, amplifiers to amplify or buffer the analog signal, output pads, output switches between the DAC unit and the output pads corresponding to the amplifiers, and an output controller to generate switch control signals that control the output switches based on/in response to a source output enable signal. The amplifiers and the output switches include a plurality of groups. The switch control signals to the output switches of each group may have different delay times based on the source output enable signal. Delay times between contiguous switch control signals to at least one group may be different from delay times between contiguous switch control signals to one or more other groups.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: July 21, 2020
    Assignee: DB HiTek Co., Ltd.
    Inventor: Seung Chul Yang
  • Patent number: 10706795
    Abstract: A display panel driving method is provided and has dividing all scan lines into two scan line sets, in a displaying time of each frame sequentially scanning a first scan line set and a second scan line set, and simultaneously applying data signals of opposite polarities to pixel units connected to the first scan line set and pixel units connected to the second scan line set.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: July 7, 2020
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Jing Xu, Taijiun Hwang
  • Patent number: 10706765
    Abstract: A compression algorithm verification method, a storage medium, and a display device are provided. The compression algorithm verification method includes the steps of: acquiring an original image; using an overdrive compression algorithm to be verified to sequentially compress and decompress the original image to obtain a first image; the first image being performed with image processing to obtain a second image; the first image and the second image serving as a previous frame image and a current frame image respectively, a gray scale compensation value being superimposed on the second image based on an overdrive technique to obtain a third image; and the third image being controlled to be dynamically displayed in such a manner that the first image is changed to the second image for verifying whether the overdrive compression algorithm meets the predetermined requirements.
    Type: Grant
    Filed: July 4, 2017
    Date of Patent: July 7, 2020
    Assignees: HKC Corporation Limited, Chongqing HKC Optoelectronics Technology Co., Ltd.
    Inventor: Yu-Jen Chen
  • Patent number: 10692456
    Abstract: A display driver includes a first latch storing first image data, a second latch storing second image data, and a buffer unit including a plurality of output buffers outputting a source voltage corresponding to the first image data. Each of the plurality of output buffers includes an input stage, an output stage, and a pre-charge circuit connected between the input stage and the output stage. A pre-charge control unit compares the first image data with the second image data to control the pre-charge circuit.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: June 23, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chul Ho Choi, Dip Wu, Jason Kuo, Jin Soo Kim, Joway Chen, Yuwen Chiou, Robert Lin
  • Patent number: 10679541
    Abstract: A display panel includes a plurality of data lines and a multiplexer circuit including a first switch set and a second switch set each having a plurality of switches. Each switch of the switch sets has a first end connected to the data lines and a second end. The second ends of a same switch set are connected to each other to form a receiving end connected to a data signal source. The first switch set is turned on alternately by a first clock signal and a second clock signal. The second switch set is turned alternately by a third clock signal and a fourth clock signal. The enabling period of the first clock signal and that of the third clock signal partially overlap and have asynchronous starting times. The enabling period of the second clock signal and that of the fourth clock signal at least partially overlap.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: June 9, 2020
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Shao-Ting Chen, Yi-Fan Lin
  • Patent number: 10672336
    Abstract: A method for driving an organic light emitting display according to an embodiment includes applying an initial value of a high potential driving power and a test pattern to a display panel and sensing changes in driving characteristics of the display panel while varying a voltage level of the high potential driving power from the initial value, deciding whether or not a sensed driving characteristic value of the display panel satisfies a predetermined condition, setting a voltage level of the high potential driving power obtained when the sensed driving characteristic value satisfies the predetermined condition, as a reference value of the high potential driving power, and adding a voltage margin to the reference value of the high potential driving power to determine a final value of the high potential driving power, and driving the display panel using the final value of the high potential driving power.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: June 2, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Hyunjae Lee, Taeyoung Park, Dongjun Choi, Dongsup Shim, Ohgun Kwon
  • Patent number: 10670818
    Abstract: Systems, devices, and methods of manufacturing optical engines and laser projectors that are well-suited for use in wearable heads-up displays (WHUDs) are described. Generally, the optical engines of the present disclosure integrate a plurality of laser diodes (e.g., 3 laser diodes, 4 laser diodes) within a single, hermetically or partially hermetically sealed, encapsulated package. Photonic integrated circuits having grating or edge couplers thereon may be used to wavelength multiplex beams of light emitted by the plurality of laser diodes into a coaxially superimposed aggregate beam. A waveguide medium having one or more directly written waveguides may couple light from laser diodes to a photonic integrated circuit, and may optionally hermetically or partially hermetically seal the laser diodes, eliminating the need for a separate seal. Such optical engines may have advantages over existing designs including, for example, smaller volumes, better manufacturability, faster modulation speed, etc.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: June 2, 2020
    Assignee: North Inc.
    Inventors: Jörg Pierer, Rony Jose James, Stefan Mohrdiek, Martin Joseph Kiik, Syed Moez Haque, Douglas Raymond Dykaar
  • Patent number: 10665174
    Abstract: An organic light emitting diode display and a compensation method of driving characteristics thereof are discussed. The organic light emitting diode display includes a first pixel connected to a reference voltage line and a first data line, a second pixel sharing the reference voltage line and connected to a second data line, a data driver configured to output a data voltage to first and second output channels during a display period and acquire a sensing voltage of the first and second pixels through the reference voltage line during a compensation period, a first switch connected between the first output channel and the first data line, and a second switch connected between the second output channel and the second data line. The second switch is turned off during a first compensation period for detecting driving characteristic of the first pixel.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: May 26, 2020
    Assignee: LG Display Co., Ltd.
    Inventor: Joonmin Park
  • Patent number: 10657857
    Abstract: A method and system for displaying images on a transparent display of an electronic device. The display may include one or more display screens as well as a flexible circuit for connecting the display screens with internal circuitry of the electronic device. Furthermore, the display screens may allow for overlaying of images over real world viewable objects, as well as a visible window to be present on an otherwise opaque display screen. Additionally, the display may include active and passive display screens that may be utilized based on images to be displayed.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: May 19, 2020
    Assignee: Apple Inc.
    Inventor: Aleksandar Pance
  • Patent number: 10650723
    Abstract: The present disclosure provides an array substrate and a display panel. The array substrate includes a display area and a non-display area surrounding the display area. The display area includes a first corner, and data lines extending along a first direction and gate lines extending along a second direction are provided on the display area. The first direction intersects the second direction. The non-display area includes a first non-display area, a second non-display area and a first corner non-display area. The first corner non-display area is adjacent to the first and second non-display areas. The first corner non-display area is adjacent to the first corner. A data end circuit, a first signal line section and a first shift register are located in the first corner non-display area. The data end circuit is disposed at a side of the first shift register close to the display area.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: May 12, 2020
    Assignee: XIAMEN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventor: Hao Wu
  • Patent number: 10650726
    Abstract: A timing controller includes a count control circuit, a pulse width detector, and a pulse generator. The count control circuit receives an external enable signal. Pulses of the external enable signal include an effective and a blank period of image data. The count control circuit counts pulse widths of each of the pulses. The pulse width detector receives the counted pulse widths, compares a pulse width of a present pulse with pulse widths of previous pulses, and detects a pulse width of a previous pulse that has a pulse width smaller than the pulse width of the present pulse. The pulse generator generates three output pulses having pulse widths that are one-third a period of the detected previous pulse. The pulse generator outputs the first, second and third pulses as an internal enable signal.
    Type: Grant
    Filed: July 29, 2008
    Date of Patent: May 12, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ik-Hyun Ahn, Jae-Hyoung Park
  • Patent number: 10651254
    Abstract: The present disclosure provides a display device including a first display panel, a second display panel, at least one detection device, and a control module. The first display panel includes a first display area having first sub-pixel regions, the second display panel includes a second display area having second sub-pixel regions, and the second display panel is movable to at least partially overlap the first display panel. The detection device is disposed on at least one of the first and second display panels to detect a position of the other one and generate a relative position detection signal correspondingly. The control module is electrically connected to the detection device to receive the relative position detection signal and an image display signal from an image signal source, so as to generate a first display signal and a second display signal to respectively output to the first and second display panels.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: May 12, 2020
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Chung-Chan Liu, Pin-Miao Liu
  • Patent number: 10643512
    Abstract: A display device includes a display unit, a driving voltage supply unit which supplies a driving voltage to the display unit, a ripple detection circuit which detects the number of times a ripple of the driving voltage is generated, and a controller which controls the driving voltage supply unit so as to change the driving voltage based on the number of times the ripple is generated.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: May 5, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dae Sik Lee, Jong Jae Lee, Su Jin Kim, Yang Uk Nam
  • Patent number: 10636376
    Abstract: A GOA circuit comprises m cascaded GOA units, wherein a nth-stage GOA unit comprises: an output control module, a forward-reverse scan control module, a first pull-down circuit, a second pull-down circuit and a pull-up circuit, the forward-reverse scan control module is used for controlling the GOA circuit to perform a forward scanning or a reverse scanning; the output control module outputs a nth gate driving signal; the first pull-down circuit comprises a seventh TFT; the second pull-down circuit comprises a third TFT, a fourth TFT and a fifth TFT; and the pull-up circuit comprises an eighth TFT and a thirteenth TFT. After power of the liquid crystal display panel is turned off, the fifth TFT is turned off by overlapping of the forward scan control signal and the reverse scan control signal and a first global control signal is high potential.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: April 28, 2020
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Yanqing Guan
  • Patent number: 10629136
    Abstract: An organic light emitting diode display and a compensation method of driving characteristics thereof are discussed. The organic light emitting diode display includes a first pixel connected to a reference voltage line and a first data line, a second pixel sharing the reference voltage line and connected to a second data line, a data driver configured to output a data voltage to first and second output channels during a display period and acquire a sensing voltage of the first and second pixels through the reference voltage line during a compensation period, a first switch connected between the first output channel and the first data line, and a second switch connected between the second output channel and the second data line. The second switch is turned off during a first compensation period for detecting driving characteristic of the first pixel.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: April 21, 2020
    Assignee: LG Display Co., Ltd.
    Inventor: Joonmin Park
  • Patent number: 10621943
    Abstract: A display device driver includes: a pixel drive voltage application unit; and a delay controller. The pixel drive voltage application unit converts a plurality of pixel data pieces into a plurality of pixel drive voltages, the pixel data pieces respectively representing luminance levels of respective pixels based on a video signal, the pixel drive voltages respectively having voltage values corresponding to the luminance levels, and applies the converted pixel drive voltages to the display device. The delay controller controls the pixel drive voltage application unit to apply the plurality of pixel drive voltages to the display device, the plurality of pixel drive voltages being sequentially delayed in units of groups, the groups each including t pixel drive voltages, and sets delay time designated by delay time designation signals as delay time to delay each of the pixel drive voltages.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: April 14, 2020
    Assignee: LAPIS SEMICONDUCTOR CO., LTD.
    Inventor: Koji Higuchi
  • Patent number: 10593268
    Abstract: A display device comprises a display panel and a timing controller. Electrical characteristics of sensing target display lines of the display panel are sensed during the sensing periods of vertical active periods of sensing drive frames. Data lines are driven with data signals without sensing the display lines during the vertical active periods of normal drive frames and during display periods of the vertical active periods of the sensing drive frames. A timing controller supplies timing signals to a gate driver as a plurality of clock pulses to control timing of the gate driver providing gate pulses to the gate lines. The clock pulses have a first timing during the vertical active periods of the sensing drive frames and the clock pulses have a second timing during the vertical active periods of the normal drive frames in which the second timing is different than the first timing.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: March 17, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Changho An, Byungil Kim
  • Patent number: 10580340
    Abstract: This application provides a system for driving a display, includes: a display panel; a data drive module, electrically connected to the display panel; and a signal control module, electrically connected to the data drive module. The signal control module includes: a color correspondence module, configured to receive image data of first bits, and convert the image data of first bits into image data of second bits; a data processing module, configured to divide the second bits into third bits and fourth bits; and a data construction module, according to a table lookup result, image data of which the number of frames and the number of bits are the same as those of data of the fourth bits, and sequentially providing the image data to the data drive module, so as to generate a corresponding data power supply for controlling the display panel to perform image display.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: March 3, 2020
    Assignees: HKC CORPORATION LIMITED, CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Wei Chen
  • Patent number: 10573254
    Abstract: A pixel circuit includes a pixel control unit, a first switching unit, a second switching unit, an inverter, a memory capacitor, and a pixel capacitor. The pixel control unit is coupled to a source line and a gate line. The first switching unit has a first terminal coupled to the pixel control unit, and a second terminal. The inverter has an input terminal coupled to the second terminal of the first switching unit, and an output terminal. The memory capacitor is coupled to the first terminal of the first switching unit and receives a first voltage or a second voltage higher than the first voltage. The second switching unit has a first terminal coupled to the pixel control unit, and a second terminal coupled to the output terminal of the inverter. The pixel capacitor is coupled to a common line and the output terminal of the inverter.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: February 25, 2020
    Assignee: InnoLux Corporation
    Inventors: Masahiro Yoshiga, Kazuyuki Hashimoto
  • Patent number: 10573245
    Abstract: A shift register unit and a driving method thereof, shift register and display device. The shift register unit including an input circuit (P1), a pull-down control circuit (P2), a pull-up control circuit (P3), a pull-up circuit (P4) and a pull-down circuit (P5); wherein the input circuit (P1) is connected to a first trigger signal end (STU), a first clock signal end (CLK1), a power level end (VGL) and a pull-up control node (Q), and is for utilizing a bootstrap effect to transfer a signal of the first trigger signal end (STU) to the pull-up control node (Q) without a threshold voltage loss. The shift register unit is for use in a display device, and resolves the problem of a display device having a non-uniform display, resulting in a poor displaying effect of a display device.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: February 25, 2020
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Quanhu Li, Yongqian Li, Song Meng
  • Patent number: 10566976
    Abstract: A complementary circuit, including a logic unit comprising pull-up depletion-mode MOS transistors and pull-down depletion-mode MOS transistors having a single channel type and a level shifting circuit coupled to the logic unit.
    Type: Grant
    Filed: September 19, 2016
    Date of Patent: February 18, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Bahman Hekmatshoartabari, Ghavam G. Shahidi
  • Patent number: 10559640
    Abstract: Disclosed is an organic light emitting diode display device capable of transmitting a sensing value through an EPI interface without a separate line B-LVDS including a display panel having a plurality of gate lines and data lines, a timing controller for controlling an operation timing of each pixel, a gate driver for driving gate lines, a data driver having a plurality of data driving ICs for driving data lines, and an EPI interface between the timing controller and each data driving ICs and for transmitting video/control data signal from the timing controller to each data driving IC, and transmitting a sensing value from the data driving IC to the timing controller.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: February 11, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Sung-Chul Ha, Pil-Sung Kang
  • Patent number: 10558097
    Abstract: In a demultiplexer circuit, each unit circuit includes at least n TFTs 30 and n branch lines connected with one video signal line. Each TFT 30 includes an oxide semiconductor layer 7, an upper gate electrode 11 provided on the oxide semiconductor layer with a gate insulating layer 9 interposed therebetween, and a first electrode 13 and a second electrode 15. The demultiplexer circuit further includes a first interlayer insulating layer 21 covering the oxide semiconductor layer and the upper gate electrode and a second interlayer insulating layer 23 provided on the first interlayer insulating layer. The first electrode 13 is provided between the first interlayer insulating layer 21 and the second interlayer insulating layer 23 and is in contact with the oxide semiconductor layer inside a first contact hole CH1 formed in the first interlayer insulating layer.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: February 11, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tadayoshi Miyamoto, Yoshinobu Nakamura
  • Patent number: 10554910
    Abstract: A solid state image sensor of the present disclosure includes: a first semiconductor substrate provided with at least a pixel array unit in which pixels that perform photoelectric conversion are arranged in a matrix form; and a second semiconductor substrate provided with at least a control circuit unit that drives the pixels. The first semiconductor substrate and the second semiconductor substrate are stacked, with first surfaces on which wiring layers are formed facing each other, the pixel array unit is composed of a plurality of divided array units, the control circuit unit is provided corresponding to each of the plurality of divided array units, and electrical connection is established in each of the divided array units, through an electrode located on each of the first surfaces of the first semiconductor substrate and the second semiconductor substrate, between the pixel array unit and the control circuit unit.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: February 4, 2020
    Assignee: Sony Corporation
    Inventors: Shunichi Sukegawa, Shunji Maeda, Junichi Ishibashi, Motoshige Okada
  • Patent number: 10553176
    Abstract: The disclosure discloses a display drive circuit, a display device, and a method for driving the same, where the display drive circuit includes a control circuit arranged between a power supply management circuit and a level conversion circuit, and the control circuit is configured to boost a standard gate turn-on voltage signal provided by the power supply management circuit, and to generate and then output a higher gate turn-on voltage signal to the level conversion circuit, upon determining that an ambient temperature is below a set temperature, and/or an output of a gate drive circuit of a display panel is abnormal, so that the level conversion circuit generates and then outputs a corresponding gate drive signal at higher voltage.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: February 4, 2020
    Assignees: BOE Technology Group Co., Ltd., Chongqing BOE Optoelectronics Technology Co., Ltd.
    Inventors: Lijun Xiong, Zhi Zhang, Heecheol Kim, Xiuzhu Tang, Shuai Chen, Jingpeng Zhao, Xing Dong, Xiaolong Liu, Gang Chen, Yanli Zhao
  • Patent number: 10553175
    Abstract: A source driver circuit includes a receiver, a plurality of amplifying buffers, and a control logic circuit. The receiver receives a data signal and a control signal through an input terminal. Each of the amplifying buffers outputs a driving signal generated based on the image data signal through an output terminal. The control logic circuit controls the receiver and the plurality of amplifying buffers based on the control signal. When a power-down signal is provided to the receiver, the control logic circuit is to turn off at least one of the receiver and the plurality of amplifying buffers.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: February 4, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Chulho Choi
  • Patent number: 10540031
    Abstract: There are provided a display panel with a touch detection function, a drive circuit, and an electronic unit, which make it possible to realize many functions related to touch detection. The display panel includes: one or more display elements; one or more drive electrodes extending in one direction; an electrode drive section integrated into a chip, and applying a drive signal to the drive electrodes; and one or more touch detection electrodes extending in a direction intersecting the direction in which the drive electrodes extend.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: January 21, 2020
    Assignee: Japan Display Inc.
    Inventors: Yoshitoshi Kida, Koji Noguchi, Hiroshi Mizuhashi, Kohei Azumi
  • Patent number: 10536300
    Abstract: A transmission device according to the disclosure includes a plurality of driver sections and a controller. The plurality of driver sections are each configured to transmit a signal using a first voltage state, a second voltage state, and a third voltage state, and to be able to set a voltage in each of the voltage states. The third voltage state is a state between the first voltage state and the second voltage state. A controller causes the plurality of driver sections to perform emphasis by setting an emphasis voltage in each of the driver sections on the basis of skew information.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: January 14, 2020
    Assignee: Sony Corporation
    Inventor: Hiroaki Hayashi
  • Patent number: 10529271
    Abstract: Provided are a display panel, an electronic device and a test method. The display panel includes: multiple data lines extending in a first direction; a display array including multiple pixel units arranged in an array, where the columns of the pixel units are electrically connected to the data lines respectively; a test switching circuit arranged at one side of the display array and test pins and a drive pin arranged at the other side of the display array in the first direction, where the test switching circuit includes a control end, input ends and output ends, the drive pin is connected to the control end, the test pins are configured to input a test signal and are connected to the input ends via a portion of the data lines, and the remaining data lines are connected to the output ends.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: January 7, 2020
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Jingxiong Zhou, Ruiyuan Zhou
  • Patent number: 10515585
    Abstract: A system for driving a display that includes a plurality of pixel circuits arranged in an array, each of the pixel circuits including a light emitting device and a driving transistor for conveying a driving current through the light emitting device. Each of a first plurality of supply lines is associated with at least one pixel circuit in a preselected segment of the array, the first plurality of supply lines providing driving currents to the at least one pixel circuit in the preselected segment. Each of a plurality of voltage supplies is configured to provide a supply voltage to the at least one pixel circuit in the preselected segment of the array, the voltage supplies being controllably coupled to the pixel circuits in the preselected segment of the array. A controller determines which of the plurality of voltage supplies to connect to the preselected segment of the array.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: December 24, 2019
    Assignee: Ignis Innovation Inc.
    Inventors: Yaser Azizi, Gholamreza Chaji
  • Patent number: 10515947
    Abstract: A device includes a plurality of active areas, a plurality of gates, and a plurality of conductors. The active areas are elongated in a first direction. The gates are elongated in a second direction. The conductors are disposed between the active areas and elongated in the second direction. Each one of the conductors has an overlap with at least one corresponding gate of the gates to form at least one capacitor.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: December 24, 2019
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Chung-Hui Chen, Hao-Chieh Chan, Wei-Chih Chen
  • Patent number: 10511698
    Abstract: An electronic device having a hidden region and a control method thereof are provided. The electronic device includes a display screen and a hidden region located in the display screen. The display screen includes a display layer and a dimming layer located below the display layer. The hidden region includes multiple functional elements. The functional elements are disposed below the dimming layer. When the dimming layer receives a first signal, the dimming layer corresponding to the hidden region becomes transparent. The functional elements are in a visible state. When the light-adjusting receives a second signal, the dimming layer corresponding to the hidden region becomes opaque. The functional elements are in a hidden state. By disposing the functional elements below the hidden region, the problem that the electronic device cannot achieve full screen can be solved.
    Type: Grant
    Filed: November 23, 2017
    Date of Patent: December 17, 2019
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Jun Chen
  • Patent number: 10490155
    Abstract: A liquid crystal display device includes a video signal processor, a ramp waveform signal generation circuit, and a liquid crystal display element. The video signal processor generates a non-inverted video signal in which video data is not bit-inverted, and an inverted video signal in which the video data is bit-inverted. The ramp waveform signal generation circuit generates a ramp waveform signal having a ramp waveform of a sawtooth wave. In the liquid crystal display element, a plurality of pixels having a liquid crystal are arranged, and a first driving voltage decided based on the non-inverted video signal and the ramp waveform signal and a second driving voltage decided based on the inverted video signal and the ramp waveform signal are alternately applied to the liquid crystal.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: November 26, 2019
    Assignee: JVC KENWOOD CORPORATION
    Inventor: Yuji Uchiyama
  • Patent number: 10488971
    Abstract: Provided are a display device with a built-in touch screen and a driving method thereof. A display device with a built-in touch screen includes: a substrate including a display area, (M*n) pixels, each including m subpixels in the display area, where: n is a natural number, m is 3 or 4, and M is an even number when m is 3 and is a natural number when m is 4, [(M*m/2)+1] data lines, 2n gate lines crossing the data lines, and multiple touch electrodes, each of n rows of the subpixels being defined by an odd- and an even-numbered gate line that are continuous among the 2n gate lines, a horizontal line for each of the n rows of the subpixels being connected to [(M*m/2)?1] data lines, and each data line is shared by a pair of subpixels.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: November 26, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Changhoon Kim, Jungjin Ahn
  • Patent number: 10482834
    Abstract: Embodiments of the present disclosure relate to a pixel circuit, comprising: a liquid crystal capacitor; a selection unit having a first input terminal for receiving a row control signal and a second input terminal for receiving a column control signal, and configured to generate a selection signal indicating whether to select the liquid crystal capacitor according to the row control signal and the column control signal and output the selection signal via an output terminal of the selection unit; and a grayscale voltage writing unit having a first input terminal connected to the output terminal of the selection unit, a second input terminal for receiving a grayscale voltage, a first output terminal connected to a first terminal of the liquid crystal capacitor, and a second output terminal connected to a first voltage, and configured to write a corresponding grayscale voltage of multiple grayscale voltages into the liquid crystal capacitor when the selection signal indicates that the liquid crystal capacitor i
    Type: Grant
    Filed: February 20, 2017
    Date of Patent: November 19, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Pengming Chen, Weitao Chen, Bin Zhang, Dianzheng Dong, Kan Zhang
  • Patent number: 10467969
    Abstract: A driving method, a liquid crystal display panel, and an electronic device are described. The driving method is applicable to a liquid crystal display panel, the liquid crystal display panel including a plurality of first data lines and includes: grouping the plurality of first data lines into a plurality of sub-groups, each sub-group including a plurality of second data lines; determining a gray-scale value difference of data on each data line from a gray scale of a previous row to a gray scale of a next row, with respect to the plurality of second data lines of each sub-group; and selectively performing charge sharing with the plurality of second data lines in each sub-group, according to the determined gray-scale value difference.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: November 5, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Lei Liu
  • Patent number: 10466530
    Abstract: A color conversion element includes a base substrate, and a first color filter layer, a second color conversion layer, and a third color conversion layer disposed on the base substrate, wherein the first color filter layer, the second color conversion layer, and the third color conversion layer are sequentially arranged on a plane, and wherein an interval between the first color filter layer and the second color conversion layer or an interval between the first color filter layer and the third color conversion layer is different from an interval between the second color conversion layer and the third color conversion layer.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: November 5, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: June Woo Lee, Ji Hyun Kim, Young Hee Lee, Young Joo Jeon, Byoung Seong Jeong, Jung Ho Choi
  • Patent number: 10459569
    Abstract: A liquid crystal display device includes: a display unit configured to pixels in a display region, a pixel drive circuit configured to apply voltage to liquid crystals, a memory configured to store therein a setting signal indicating whether to apply voltage to the liquid crystals in the display region, and two switch elements for switching coupling with the pixel drive circuit; and a controller configured to rewrite the setting signal stored in the memory when a mode in which the display unit is operated is switched, between a first mode causing the display unit to perform display output in accordance with a gradation signal generated based on image data, and a second mode causing the display unit to perform display output in accordance with the setting signal stored in the memory.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: October 29, 2019
    Assignee: Japan Display Inc.
    Inventor: Daijiro Takano
  • Patent number: 10460656
    Abstract: Disclosed are a display panel and a display device. A middle area is arranged between the first subarea and the second subarea so that components such as a camera and a receiver can be arranged at corresponding positions in the middle area. First driving signal lines only extend along the row direction of the pixels to the edge of the first subarea close to the middle area and second driving signal lines only extend to the edge of the second subarea close to the middle area. A first driving circuit is arranged in the first subarea to drive the first driving signal lines to operate and a second driving circuit is arranged in the second subarea to drive the second driving signal lines to operate.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: October 29, 2019
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Kerui Xi, Tingting Cui, Juan Zhu
  • Patent number: 10460688
    Abstract: The liquid crystal display panel comprises: data line pairs, comprising a first data line and a second data line located side by side; scan lines, comprising a first scan line and a second scan line which are perpendicular with the data line pairs and alternatively arranged; a pixel unit array, comprising pixel units, respectively located in regions formed by arrangement of the data line pairs and the scan lines; wherein a scan drive signal received by the first and second scan lines scan the two rows of pixel units coupled to each other at the same time, and the first and second scan lines are respectively coupled to at least two pixel units in a single row of the pixel units, and drives the pixel units coupled to each data line in time division to charge the pixel units coupled to the same data line in time division.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: October 29, 2019
    Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd
    Inventors: Zhenzhou Xing, Chun-hung Huang
  • Patent number: 10429967
    Abstract: The present disclosure relates to a liquid crystal display (LCD) device, and particularly, to an in-cell touch type LCD device, and a method for driving capable of preventing deterioration of picture quality and enhancing touch sensitivity, by dividing a touch block in a spatial manner, not in a time manner. The in-cell touch type liquid crystal display (LCD) device, includes: an LCD panel including a first touch block and a second touch block having a plurality of gate lines and common lines; a gate driver for applying high-potential gate driving signals to the gate lines of the first touch block; a common voltage generator for supplying common voltages (Vcom) of first and second waveforms, to the common lines of the first and second touch blocks, respectively; and a touch detection circuit for detecting a touched position on the LCD panel through the second waveform common voltages.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: October 1, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: SeongHo Cho, CheonKee Shin, KyungSeok Kim
  • Patent number: 10431176
    Abstract: The present disclosure relates to a scanning-driving circuit and a liquid crystal display (LCD). The scanning-driving circuit includes: a plurality of cascaded-connected gate driver on array (GOA) units. Each of the GOA units includes a pull-up circuit, a controlling circuit, a down-transfer circuit, a pull-down circuit, and a pull-down maintaining unit. The controlling circuit includes a first controlling circuit and a second controlling circuit. When conducting a forward scanning process, the first controlling circuit is configured to turn on the pull-up circuit upon the scanning process has started, and the second controlling circuit is configured to turn off the pull-up circuit upon the scanning process has finished. When conducting a backward scanning process, the second controlling circuit is configured to turn on the pull-up circuit upon the scanning process has started, and the first controlling circuit is configured to turn off the pull-up circuit upon the scanning process has finished.
    Type: Grant
    Filed: November 23, 2017
    Date of Patent: October 1, 2019
    Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd
    Inventor: Mian Zeng
  • Patent number: 10431173
    Abstract: A drive circuit includes: a connection module, including a first and a second interfaces for receiving a control signal; an adjustment module, including: a first switch, a control end thereof is coupled to the first interface, a first end is coupled to a supply voltage, and a second end is coupled to a first resistor; second switch, a control end thereof is coupled to the second interface, a first end is coupled to a second resistor, and a second end is grounded; and a third resistor, coupled to the first and the second switches; and a write protection module coupled to the second end of the second switch, and including a software written and a write protection states, where the first and the second switches are controlled to be open or closed by using the control signal, to control the working states of the write protection module.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: October 1, 2019
    Assignee: HKC CORPORATION LIMITED
    Inventor: Beizhou Huang
  • Patent number: 10417980
    Abstract: A liquid-crystal display device and a driving method thereof are disclosed. The driving method of the liquid-crystal display device comprises: converting data of an input image into a positive gamma reference level voltage and a negative gamma reference voltage to generate a positive data voltage and a negative data voltage; selecting between the positive data voltage and the negative data voltage in response to a polarity control signal and supplying the selected data voltage to data lines; generating a compensated voltage based on the difference between a dummy data voltage and a preset gamma reference level voltage; and increasing the high-potential power supply voltage by an amount equal to the compensated voltage and decreasing the low-potential power-supply voltage by the amount equal to the compensated voltage.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: September 17, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Joohee Lee, Yongwon Jo
  • Patent number: 10417953
    Abstract: Provided are a source driving circuit and driving method thereof, and a display apparatus. The driving method of the source driving circuit comprises: the source driving circuit outputting a display data signal when preparing to charge one pixel electrode, the source driving circuit stopping outputting the display data signal when the display data signal reaches a target value, the time when the display data signal reaches the target value being earlier than the time when the charging of the one pixel electrode is completed; and the source driving circuit resuming outputting the display data signal when preparing to charge the next pixel electrode. It is possible to reduce the power consumption of the source driving circuit and thus reduce the power consumption of the display apparatus.
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: September 17, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Shichang Yin
  • Patent number: 10409544
    Abstract: A display device including a plurality of display units; a plurality of unit temperature sensors respectively connected to the plurality of display units and configured to respectively sense temperatures of the plurality of display units; and a control unit configured to set one of the sensed temperatures of the plurality of display units as a device representative temperature, and adjust a brightness of each of the plurality of display units in accordance with the device representative temperature.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: September 10, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Sangjoon Park, Heeyoung Lim, Byungchang Cha
  • Patent number: 10388246
    Abstract: An electronic device is provided. The electronic device includes a display, at least one processor, a memory that is electrically connected to the at least one processor, and a display driver integrated circuit that is electrically connected to the at least one processor. The at least one processor is configured to receive a synchronization signal request corresponding to a first process initiated by the at least one processor from the at least one processor, determine whether the first process is for displaying an image in response to the synchronization signal request, and control an activation state of the display driver integrated circuit for displaying the image based on a determination result. The memory is configured to store instructions for the at least one processor to initiate and run the first process.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: August 20, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jin-Young Jeon
  • Patent number: 10388214
    Abstract: An organic light-emitting display device includes: a plurality of pixels arranged in a matrix, wherein each of the pixels includes: an organic light emitting element; a first transistor including a gate electrode coupled to a scan line, a first electrode coupled to a data line, and a second electrode coupled to a first node, a second transistor configured to drive the organic light emitting element according to a data voltage provided through the first transistor; a third transistor including a first electrode coupled to the first node and a second electrode coupled to a second node; a first capacitor between the first node and a third node configured to have an initialization voltage applied; and a second capacitor between a fourth node coupled to a gate electrode of the second transistor and the second node.
    Type: Grant
    Filed: April 13, 2015
    Date of Patent: August 20, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventor: Ji Su Na