Controlling The Condition Of Display Elements Patents (Class 345/214)
  • Patent number: 11127765
    Abstract: A display device with high resolution is provided. A display device with high display quality is provided. A display device includes a display portion, a first terminal group, and a second terminal group. The display portion includes pixels, scan lines, and signal lines. The first terminal group and the second terminal group are apart from each other. The first terminal group includes first terminals and the second terminal group includes second terminals. The scan lines are each electrically connected to the pixels arranged in a row direction. The signal lines are each electrically connected to the pixels arranged in a column direction. The signal lines are each electrically connected to the first terminal or the second terminal. The display portion includes a first region where the signal lines electrically connected to the first terminals and the signal lines electrically connected to the second terminals are mixed.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: September 21, 2021
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Kei Takahashi, Shunpei Yamazaki
  • Patent number: 11120741
    Abstract: The present application discloses a current-driven display device which employs internal compensation, by which a non-emission period can be shortened without causing the luminance of display elements to be unstable. During a period in which a voltage on a data signal line Dj is written to a pixel circuit, transistors M4 and M6 are controlled to be in an OFF state, and transistors M2, M3, and M5 are controlled to be in an ON state. As a result, a drive transistor M1 is diode-connected, a source terminal thereof is disconnected from a high-level power line ELVDD, and a gate terminal thereof and an anode of an organic EL element OLED are connected to an initialization voltage supply line Vini. Consequently, a gate voltage Vg of the drive transistor M1 and an anode voltage Va of the organic EL element OLED are initialized, and first and second capacitors C1 and C2 respectively hold a voltage corresponding to the voltage on the data signal line Dj and a threshold voltage of the drive transistor M1.
    Type: Grant
    Filed: July 4, 2018
    Date of Patent: September 14, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Seiji Umezawa
  • Patent number: 11107420
    Abstract: The display device according to the present disclosure may comprise a display panel equipped with a plurality of pixels connected to data lines and sensing lines; a source drive IC configured to provide a data voltage to a pixel through the sensing line and equipped with a sensing block obtaining sensing data related to driving characteristics of the pixel using a signal input through the sensing line; a switch configured to control a connection via the sensing line between the pixel and the sensing block; and a power source configured to provide a test voltage or a test current to the sensing block, and the source drive IC may obtain calibration data for the sensing block by using the test voltage or the test current in a state that the switch disconnects the pixel and the sensing block.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: August 31, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Seokhyun Hong, Jaeyoon Bae, OSung Do, Taeyoung Lee
  • Patent number: 11094771
    Abstract: A display device includes a substrate including a pixel area and a peripheral area, a plurality of pixels disposed in the pixel area of the substrate, a first initialization line disposed in the peripheral area of the substrate, the first initialization line being configured to provide a first initialization voltage to the plurality of pixels, and a second initialization line disposed in the peripheral area of the substrate, the second initialization line being configured to provide a second initialization voltage to the plurality of pixels. At least a portion of the first initialization line may overlap with the second initialization line.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: August 17, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Youngjin Cho, Joong-Soo Moon, Changkyu Jin, Yangwan Kim
  • Patent number: 11082645
    Abstract: An imaging apparatus and electronic equipment configured for reduced power consumption are disclosed. In one example, an imaging apparatus includes a pixel array unit including a first pixel portion and a second pixel portion different from the first pixel portion. Each of the first pixel portion and the second pixel portion includes a first photoelectric conversion unit and a second photoelectric conversion unit adjacent to the first photoelectric conversion unit. The pixel array unit includes a first drive line connected to the first photoelectric conversion unit of the first pixel portion and the second pixel portion, a second drive line connected to the second photoelectric conversion unit of the first pixel portion, and a third drive line connected to the second photoelectric conversion unit of the second pixel portion. The t technology can, for example, be applied in a CMOS image sensor having pixels for phase difference detection.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: August 3, 2021
    Assignee: Sony Semiconductor Solutions Corporation
    Inventor: Keiichiro Takahashi
  • Patent number: 11074863
    Abstract: A system for controlling a display in which each pixel circuit comprises a light-emitting device, a drive transistor, a storage capacitor, a reference voltage source, and a programming voltage source. The storage capacitor stores a voltage equal to the difference between the reference voltage and the programming voltage, and a controller supplies a programming voltage that is a calibrated voltage for a known target current, reads the actual current passing through the drive transistor to a monitor line, turns off the light emitting device while modifying the calibrated voltage to make the current supplied through the drive transistor substantially the same as the target current, modifies the calibrated voltage to make the current supplied through the drive transistor substantially the same as the target current, and determines a current corresponding to the modified calibrated voltage based on predetermined current-voltage characteristics of the drive transistor.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: July 27, 2021
    Assignee: Ignis Innovation Inc.
    Inventor: Gholamreza Chaji
  • Patent number: 11074715
    Abstract: There is provided an image processing apparatus and method that can improve accuracy of corresponding point detection. A plurality of predetermined feature points included in a captured image obtained by capturing a projected image including the feature points are detected, a single or a plurality of dots included in a captured image obtained by capturing a projected image including a dot pattern including the dots are detected, and corresponding points between the projected image and the captured image are detected by identifying the detected feature points on the basis of an appearance pattern of the detected dots in a time direction corresponding to the feature points. The present disclosure can be applied to, for example, an image processing apparatus, a projection apparatus, an imaging apparatus, a projection imaging apparatus, a control apparatus, a projection imaging system, or the like.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: July 27, 2021
    Assignee: SONY CORPORATION
    Inventor: Yohsuke Kaji
  • Patent number: 11069272
    Abstract: A shift register, a gate drive circuit, a display panel, and a driving method. The shift register includes: an input circuit, which is connected to a pull-up node and an input signal terminal respectively; an output circuit, which is connected to the pull-up node, a clock signal terminal, a direct current signal terminal and an input terminal respectively, wherein the clock signal terminal provides a clock signal, the direct current signal terminal provides a direct current signal, and the output circuit outputs a scanning signal from the output terminal; and an output pull-down circuit, which is connected to the output circuit. The output circuit is configured to output a scanning signal from the output terminal as one from among the direct current signal and the clock signal when a first output condition is satisfied.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: July 20, 2021
    Assignees: Hefei BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Silin Feng, Zhifu Dong, Wei Xue, Hongmin Li
  • Patent number: 11061793
    Abstract: Circuits, methods, and apparatus that may estimate the power being consumed by an OLED display screen of an electronic device, may provide further information about that power usage, may modify or change functions performed by the electronic device based on that power usage, and may inform an application's developer about the amount of power being used by the electronic device while the electronic device is running the application. One example may estimate the power being used by an OLED display screen of an electronic device by determining the content of images being displayed during a duration. The estimated power may then be presented to a user. The estimated power may be used in decisions to modify or change parameters of the screen or other device components.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: July 13, 2021
    Assignee: Apple Inc.
    Inventors: Abhinav Pathak, Conor J. O'Reilly, Shashi K. Dua, Udaykumar R. Raval, Christopher W. Chaney, Amit K. Vyas, Albert S. Liu, Roberto Alvarez, Rohit Mundra, Vladislav Sahnovich, Patrick Y. Law, Paul M. Thompson, Paolo Sacchetto, Chaohao Wang, Arthur L. Spence, Jean-Pierre Simon Guillou, Mohammad Ali Jangda, Christopher Edward Glazowski, Yifan Zhang, Prajakta S. Karandikar, Han Ming Ong
  • Patent number: 11048364
    Abstract: A method for acquiring capacitance of a capacitive touch panel includes acquiring a selected capacitance value at a selected point among a plurality of points at which a plurality of capacitances are present, in the capacitive touch panel, determining the selected capacitance value as a reference capacitance value, and performing a multi-driving using a balanced code, and acquiring a capacitance value from at least one point among the plurality of points using the reference capacitance value.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: June 29, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong Jin Park, Min Gyu Kim, Sun Kwon Kim, Jong Bin Moon, Young Kil Choi, Yoon Kyung Choi
  • Patent number: 11049439
    Abstract: A display device includes a pixel array, multiple data lines and multiple gate lines. The pixel array includes multiple pixels. At least one of the pixels includes a first sub-pixel and a second sub-pixel. The first sub-pixel includes a pixel circuit, which includes a first light-emitting element and a first driving circuit. The first driving circuit is coupled to and configured to control the first light-emitting element. The first driving circuit includes multiple TFTs. The second sub-pixel includes a pixel circuit, which includes a second light-emitting element and a second driving circuit. The second driving circuit is coupled to and configured to control the second light-emitting element. The second driving circuit includes multiple TFTs. The number of TFTs of the first driving circuit and the number of TFTs of the second driving circuit are different.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: June 29, 2021
    Assignee: INNOLUX CORPORATION
    Inventors: Min-Hsin Lo, Ker-Yih Kao, Cheng-Hsu Chou, Kung-Chen Kuo, Hung-Sheng Liao
  • Patent number: 11043656
    Abstract: A display device includes a window including pixel areas and a light shielding area, a display panel including a base substrate, a pixel definition layer disposed on the base substrate and including a plurality of openings respectively overlapping the pixel areas, and organic light emitting diodes respectively overlapping the openings and emitting a light through the openings, and an input sensing unit disposed between the window and the display panel. The input sensing unit includes a first conductive layer including a first conductive pattern disposed on the display panel, a first insulating layer covering the first conductive pattern and including a scattering pattern overlapping at least one pixel area among the pixel areas, a second conductive layer including a second conductive pattern disposed on the upper surface of the first insulating layer, and a second insulating layer covering the second conductive pattern on the first insulating layer.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: June 22, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventor: Hyeonbum Lee
  • Patent number: 11036071
    Abstract: A method of manufacturing a display apparatus is provided as follows. A substrate having a display portion on an upper surface of the substrate is prepared. A protection film having an opening is attached to a lower surface of the substrate so that the protection film overlaps the display portion. A support film is attached to the lower surface so that the support film is disposed within the opening of the protection film. A driving circuit chip is attached to the upper surface so that the driving chip is spaced apart from the display portion and the opening. At least a part of the support film is removed. The substrate is bent along a longitudinal direction of the opening.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: June 15, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dongbin Um, Jihong Hwang, Hayoung Choi
  • Patent number: 11030928
    Abstract: An apparatus and a method for sensing a display panel are provided. The apparatus includes a source driving circuit and a sensing circuit. The source driving circuit is coupled to data lines to drive the pixel circuits according to a display period comprising frame periods. The sensing circuit is coupled to a plurality of pixel circuits. The sensing circuit senses characteristics of the pixel circuits in the test data periods of the display period. The test data periods are periodically arranged in the display period. In each of the test data periods, a corresponding pixel circuit receives test data, and the sensing circuit senses the electrical characteristic of the corresponding pixel circuit. In the scan-line periods of each of the frame periods, the corresponding pixel circuit receives display data from a corresponding data line, and the sensing circuit does not sense the corresponding pixel circuit.
    Type: Grant
    Filed: January 16, 2020
    Date of Patent: June 8, 2021
    Assignee: Novatek Microelectronics Corp.
    Inventors: Chun-Chieh Lin, Shang-I Liu, Hua-Gang Chang
  • Patent number: 11023995
    Abstract: Methods and systems for reducing power consumption of a display link by compacting image data to allow the display link to be deactivated for a longer duration. For instance, pixels that correspond to a preset or default value for a display may be omitted from pixel data sent over the display link. Additionally or alternatively, the display link may be divided into multiple lanes that function independently so that a lane of the display link may be deactivated while other lanes are actively transmitting image data.
    Type: Grant
    Filed: August 15, 2019
    Date of Patent: June 1, 2021
    Assignee: Apple Inc.
    Inventor: Hopil Bae
  • Patent number: 11016599
    Abstract: Disclosed is a light distribution controllable touch panel device including: an upper transparent substrate; a lower transparent substrate; one or more lower light distribution control electrodes on a top face of the lower transparent substrate; touch panel electrodes on an underface of the upper transparent substrate; electrophoretic elements sandwiched between the one or more lower light distribution control electrodes and the touch panel electrodes, each of the electrophoretic elements including colored electrophoretic particles and dispersion medium; and a controller. The controller is configured to: provide driving potentials to the touch panel electrodes in measuring capacitances for detecting a touch point; and provide driving potentials to the one or more lower light distribution control electrodes with reference to the driving potentials given to the touch panel electrodes to control a state of the colored electrophoretic particles in the plurality of electrophoretic elements.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: May 25, 2021
    Assignee: TIANMA MICROELECTRONICS CO., LTD.
    Inventor: Yuki Ito
  • Patent number: 11004373
    Abstract: A source driver and an operating method thereof are provided. The source driver includes a high voltage circuit, a low voltage circuit and a sensing circuit. The low voltage circuit is coupled to the high voltage circuit. The high voltage circuit and low voltage circuit drive a display panel. The sensing circuit is coupled to the low voltage circuit. The sensing circuit senses the display panel during an analog-to-digital operating period. At least one of the high voltage circuit and the low voltage circuit is disabled during at least part of the analog-to-digital operating period.
    Type: Grant
    Filed: June 2, 2019
    Date of Patent: May 11, 2021
    Assignee: Novatek Microelectronics Corp.
    Inventors: Po-Hsiang Fang, Jhih-Siou Cheng, Ju-Lin Huang
  • Patent number: 10991310
    Abstract: Disclosed are a driving circuit and a display device, comprising a first scan driving circuit, a second scan driving circuit, a selector and at least one pixel unit; wherein the first scan driving circuit and the second scan driving circuit are respectively coupled to the selector and the selector is coupled to the at least one pixel unit; the selector outputs a first scanning signal of the first scan driving circuit to the at least one pixel unit in a first duration to make the at least one pixel unit in a display state; the selector outputs a second scanning signal of the second scan driving circuit to the at least one pixel unit in a second duration to make the at least one pixel unit in a compensation state; wherein the first duration and the second duration are different.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: April 27, 2021
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Longqiang Shi
  • Patent number: 10991300
    Abstract: A pixel includes an organic light-emitting diode (OLED), a storage capacitor, and first to fourth transistors. The first transistor includes a gate electrode (GE), a first electrode (FE), and a second electrode (SE), and is configured to control, in response to a voltage of a first node (FN) coupled to the GE, current supplied from a first power source (PS) coupled to the FE to a second PS via the OLED. The storage capacitor is coupled between the FN and the first PS. The second transistor is coupled between a data line and the first transistor. The third transistor includes a FE coupled to the FN and a SE coupled to the SE of the first transistor. The fourth transistor includes a FE coupled to the FN and a SE coupled to the SE of the first transistor, and is configured to transmit an initialization voltage to the FN.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: April 27, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong Hee Kim, Ji Hye Lee
  • Patent number: 10991323
    Abstract: A control circuit, a testing apparatus and a method for testing a liquid crystal display panel are provided. The control circuit includes a current sensor and a discharge signal generation circuit. The current sensor is configured to detect a change in an input current of the liquid crystal display panel to generate an indication signal, the indication signal being indicative of switching of image frames displayed by the liquid crystal display panel. The discharge signal generation circuit is configured to receive the indication signal from the current sensor, and the discharge signal generation circuit generates a discharge signal in response to receiving the indication signal, so that a liquid crystal capacitor including the common electrode and the pixel electrode in the liquid crystal display panel is discharged. Hence, the quality of images displayed by the liquid crystal display panel can be improved and the product yield can be increased.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: April 27, 2021
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Weiwei Wang, You Zheng, Wenhua Fu, Yanli Lou, Qing Wang, Xiaofen Wang, Xin Shao, Gan Ren, Jian Zhang
  • Patent number: 10964253
    Abstract: Each of pixels of a display device includes: a light-emitting portion including first light-emitting devices that are connected in a forward direction between a first electrode and a second electrode and second light-emitting devices that are connected in a reverse direction between the first electrode and the second electrode; a pixel circuit configured to receive a data voltage in synchronization with a scan signal, generate a driving current based on the data voltage, and output the driving current to a first node; and a light-emitting circuit configured to be controlled by a control signal, provide the driving current to the first light-emitting devices during a first emission period, and provide the driving current to the second light-emitting devices during a second emission period.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: March 30, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jaekeun Lim, Jeongkyoo Kim
  • Patent number: 10964261
    Abstract: Embodiments of the present disclosure provide a pixel circuitry, a method for driving the pixel circuitry, an array substrate, and a display device. The pixel circuitry may include a preset circuit, a storage circuit, a driving circuit, a compensation circuit, and a light emitting element. The preset circuit may provide a signal from a data signal terminal to a first node, and provide a signal from an initialization signal terminal to a second node. The storage circuit may store a voltage difference between the first node and the second node. The driving circuit may provide a driving current to a third node according to a voltage of the first node. The compensation circuit may compensate for a voltage of the second node according to a signal from a control signal terminal. The light emitting element may emit light according to the driving current.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: March 30, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Cheng Chung Yang
  • Patent number: 10964257
    Abstract: A display device includes a display panel including pixels arranged in rows and columns, a gate driver connected to pixels in the rows through first gate lines and second gate lines, a data driver connected to the pixels in the columns through data lines, a sensor connected to the pixels in the columns through sensing lines, a memory to store a look-up table, and a timing controller to control the gate driver and the data driver to adjust the brightnesses of the pixels through the first gate lines and the data lines and to control the gate driver and the sensor to perform a sensing operation of sensing the brightnesses of the pixels through the second gate lines and the sensing lines. The timing controller reads the look-up table from the memory and adjusts a sensing period of the sensing operation based on the look-up table.
    Type: Grant
    Filed: January 28, 2020
    Date of Patent: March 30, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jungmoon Kim
  • Patent number: 10957265
    Abstract: A display apparatus includes a display panel including display blocks, where each of the display blocks includes a plurality of pixels, a gate driver which outputs gate signals to the pixels, a data driver which receives image data and outputs data voltages corresponding to the image data to the pixels, and a timing controller which converts an image signal input thereto, outputs the converted image signal to the data driver as the image data, and controls a driving timing of the gate driver and the data driver. The timing controller controls output timings of at least data voltages output to pixels of a predetermined display block among the data voltages provided to the pixels of the display blocks, depending on a color pattern of the image signal corresponding to the pixels of the predetermined display block.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: March 23, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Neung-beom Lee, Junpyo Lee, Sangan Kwon, Kyunho Kim, Sungjin Kim, Yong-jin Shin, Shimho Yi, Kyung-hwa Lim
  • Patent number: 10950183
    Abstract: The present application discloses an organic EL display device adopting the SSD method, which enables sufficient charging with a data voltage and sufficient internal compensation in a pixel circuit even in a case that a display image has a higher resolution. There are provided m demultiplexers corresponding to m sets of data signal line groups, each of which is a set including k data signal lines (in this case, k=3). Each demultiplexer turns selection control signals to a low level (active) during a rest period before a scanning signal line is selected. In this case, a white voltage is supplied as a reset voltage from a data-side drive circuit to each data signal line via each demultiplexer. After that, each demultiplexer sequentially turns the selection control signals to an active state for a predetermined period such that the select control signal turns to the active state during the select period for the scanning signal line.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: March 16, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tetsuya Ueno, Asahi Yamato
  • Patent number: 10930361
    Abstract: A voltage control circuit, a shift register unit, and a display device are provided. The voltage control circuit is applied to a shift register unit, the shift register unit includes a gate-driving-signal output end, and the voltage control circuit includes a discharge control end, a discharge circuit and a discharge voltage end. The discharge circuit is configured to, under control of a signal inputted by the discharge control end, control to electrically disconnect the gate-driving-signal output end from the discharge voltage end during a display period of a display screen, and control to electrically connect the gate-driving-signal output end to the discharge voltage end during a shutdown period of the display screen.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: February 23, 2021
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Shenghua Hu, Chunyang Nie, Ke Dai, Kun Yang, Ruilian Li
  • Patent number: 10909669
    Abstract: A contrast adjustment system includes a memory and a processor. The memory stores instructions. The processor is configured to access and execute the instructions to: access an image with a plurality of pixels, wherein the pixels are corresponding to a plurality of intensity values; generate a histogram based on a distribution of the intensity values in a range from an intensity lower bound to an intensity upper bound; divide the histogram into four sub-histograms based on a median value of the intensity values; enlarge the four sub-histograms based on a predetermined parameter; remap the four sub-histograms to form a gamma curve based on a cumulative distribution function; and apply the gamma curve to pixels of another image.
    Type: Grant
    Filed: January 3, 2020
    Date of Patent: February 2, 2021
    Assignee: REALTEK SEMICONDUCTOR CORPORATION
    Inventors: Chung-Yan Chih, Kai Liu, Wen-Tsung Huang
  • Patent number: 10909945
    Abstract: Embodiments of the present disclosure provide a method and apparatus for pixel drive control, a display panel and a storage medium. The method includes generating a drive control signal based on display data of target columns of sub-pixels and corresponding target display brightnesses. The drive control signal includes sub-drive control signals having at least two duty cycles. The method includes controlling a pixel drive circuit to output a corresponding pixel drive signal based on the drive control signal. The pixel drive signal includes sub-drive signals having at least two duty cycles corresponding to respective sub-drive control signals. Embodiments of the present disclosure enables different rows of sub-pixels to be driven by signals having different duty cycles, thereby achieving adjustment of charging time for different rows of sub-pixels, to reduce charging difference for rows of sub-pixels and enable their display brightnesses to become uniform.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: February 2, 2021
    Assignees: HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Kun Li, Jie Cao, Yueyuan Zhang, Hui Sun
  • Patent number: 10886358
    Abstract: A display device, includes: a display area including an upper side, a lower side, a left side, a right side, and inclined corner portions where the upper, lower, left, and right sides meet; a demultiplexing circuit unit adjacent to the lower side of the display area and the corner portion connected thereto; and a scan transmission line which extends toward the display area from an outer side of the left side and overlaps with the demultiplexing circuit unit outside the corner portion, wherein the demultiplexing circuit unit includes a demultiplexer transistor, and the scan transmission line is formed of a different conductive layer from an electrode of a demultiplexer transistor.
    Type: Grant
    Filed: February 3, 2020
    Date of Patent: January 5, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Han Sung Bae, Se Ho Kim, Sun Ja Kwon, Dong Wook Kim, Jun Yong An, Sang Moo Choi, Jun Won Choi
  • Patent number: 10872580
    Abstract: A shift register unit includes: an input circuit, configured to communicate an input terminal with a first node; an output control circuit, configured to provide a second clock signal for a second node when the first node is at a second level, and provide a first level for the second node when the first clock signal is at the second level; a reset control circuit, configured to provide the first level for the third node when the second clock signal and the first node are both at the second level, and provide the second level for the third node when the first clock signal is at the second level; and an output circuit, configured to provide the second level for an output terminal when the second node is at the second level, and provide the first level for the output terminal when the third node is at the second level.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: December 22, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Chengchung Yang
  • Patent number: 10868998
    Abstract: A video signal conversion device includes a frontend interface circuit, a FPGA video processor and a backend interface circuit. The frontend interface circuit receives a HDR video input signal from a video transmitting device. The FPGA video processor outputs a SDR first video output signal. A video receiving device receives the first video output signal and a HDR second video output signal from the FPGA video processor through the video bridge controller of the backend interface circuit by PCI-E.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: December 15, 2020
    Assignee: AVERMEDIA TECHNOLOGIES, INC.
    Inventors: Ssu-Ming Cheng, Hong-Wei Liu, Chen-Hsiang Wu, Shi-Jie Lin, Yen-Cheng Yao, Chih-Sheng Wang
  • Patent number: 10866672
    Abstract: A signal transmission device for transmitting touch data and a display device using the same are disclosed. The signal transmission device includes a plurality of integrated circuits driving touch sensors and outputting touch data obtained from the touch sensors, a controller controlling the integrated circuits and determining a touch input on the basis of the touch data received from the integrated circuits; and a plurality of lines connecting the controller and the integrated circuits in a multi-point manner. The controller and the integrated circuits communicate with each other in both directions via the lines. A data packet of differential signal transmitted between the controller and the integrated circuits includes a header interval, a register address interval, and a data interval allocated between a start dummy clock and an end dummy clock.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: December 15, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Seungpyo Seo, Yeonwook Kang
  • Patent number: 10845657
    Abstract: A liquid crystal panel (a display device) 10 includes pixel sections PX, a black matrix (a pixel in-between light blocking section) 10i disposed to define each of the pixel sections PX that are adjacent to each other, TFTs (switching components) 11 connected to the pixel sections PX and configured to drive the pixel sections PX, respectively, and a divisional light, blocking section 22 disposed to divide the pixel section PX into divided pixels PPX.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: November 24, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Keiichi Yamamoto
  • Patent number: 10847101
    Abstract: A gate driver circuit and a liquid crystal panel using the same are provided. The gate driver circuit includes a forward/reverse switching module, a low electrical potential line, and a synchronization module. The forward/reverse switching module includes an up to down terminal and a down to up terminal. The synchronization module is configured to electrically conduct the low electrical potential line with one of the up to down terminal and the down to up terminal which has a lower electrical potential.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: November 24, 2020
    Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd.
    Inventors: Xin Zhang, Juncheng Xiao, Yanqing Guan
  • Patent number: 10839730
    Abstract: A communication device includes a first device connected to a data line and a clock line and a second device configured to communicate with the first device via the data line and the clock line. A data signal transmitted to the second device from the first device via the data line swings between a first voltage and a second voltage, the second voltage has a voltage level higher than a voltage level of the first voltage, and a clock signal transmitted to the second device from the first device via the clock line is transited to a third voltage higher than the second voltage at a rising edge and then changed to the second voltage.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: November 17, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jinyoung Jeon, Eunsol Seo, Heonseok Lee, Taejoon Kim
  • Patent number: 10840311
    Abstract: Various embodiments provide a thin and lightweight organic light-emitting display device having a touch sensor. The organic light-emitting display device having a touch sensor includes a touch-sensing line and a touch-driving line disposed on an encapsulation stack so as to overlap each other. The touch-sensing line and the touch-driving line overlap each other in a location in which an organic touch dielectric film and an inorganic touch dielectric film are disposed therebetween, thereby preventing the generation of spots in the event of degeneration of the organic touch dielectric film and preventing damage to the organic touch dielectric film.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: November 17, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jeong-Gi Yun, Go-Eun Lim
  • Patent number: 10838676
    Abstract: Electronic digital display systems, including roadside display devices, vehicle-based devices, personal mobile devices, intermediary servers, advertising servers, and/or additional external data sources may operate individually or in combination to identify one or more vehicle locations, driving routes, driver and passenger characteristics, and the like. Vehicle and individual characteristics may be determined based on data received from traffic cameras, vehicle-based devices, personal mobile devices, and/or other data sources. Based on the vehicle characteristics, individual characteristics, driving data and driving patterns, and the like, digital content may be determined for electronic roadside displays to be viewable by the approaching vehicles, and/or other digital display devices to be viewable by associated individuals via other display devices and at other times. Various techniques may be used to determine customized digital content.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: November 17, 2020
    Assignee: Allstate Insurance Company
    Inventor: Robert Wasserman
  • Patent number: 10832608
    Abstract: The disclosure relates to a pixel circuit, a method for driving method, a display panel, and a display device. The pixel circuit includes: a scan control circuit, a latch circuit, a charging control circuit, and a pixel electrode; the scan control circuit is configured to output a data signal to a first node in response to a gate scan signal; the latch circuit is configured to latch signals of the first node and a second node response to a signal of the first node; and the charging control circuit is configured to output a first display voltage signal to the pixel electrode in response to the signal of the first node and a charging control signal, and to output a second display voltage signal to the pixel electrode in response to the signal of the second node and the charging control signal.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: November 10, 2020
    Assignees: Beijing BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Wang Guo, Yu Zhao, Hailong Wang, Dawei Feng, Mingyang Lv
  • Patent number: 10824924
    Abstract: The present disclosure relates to an electronic label, an electronic label system and a data processing method. The electronic label includes an electronic label body and a proximity sensing module. The proximity sensing module is disposed in the electronic label body and configured to detect whether there is a human body within a certain range from the electronic label. In response, the proximity sensing module is configured to generate a corresponding detection signal when a human body is detected. The detection signal is used to obtain a duration of stay of the human body before the electronic label.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: November 3, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Hongtao Guan
  • Patent number: 10818228
    Abstract: A pixel circuit, a method for driving a pixel circuit and a display panel are provided. The pixel circuit includes a control sub-circuit, a shunt sub-circuit, a light emitting sub-circuit and a latch sub-circuit, where the control sub-circuit is configured to output to the latch sub-circuit a data signal from a data signal line in response to a scan signal from a scan signal line; the latch sub-circuit is configured to latch a first level signal and a second level signal in response to the data signal and the scan signal, and output the second level signal to light emitting sub-circuit in response to a switch signal from a switch signal line, to enable the light emitting sub-circuit to emit light; and the shunt sub-circuit is configured to shunt, in response to a control signal from a control signal line, the second level signal input to the light emitting sub-circuit, to adjust a light emitting brightness of the light emitting sub-circuit.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: October 27, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Dongni Liu, Xiaochuan Chen, Minghua Xuan, Shengji Yang, Lei Wang, Li Xiao, Pengcheng Lu, Liang Chen
  • Patent number: 10810940
    Abstract: A system for controlling a display in which each pixel circuit comprises a light-emitting device, a drive transistor, a storage capacitor, a reference voltage source, and a programming voltage source. The storage capacitor stores a voltage equal to the difference between the reference voltage and the programming voltage, and a controller supplies a programming voltage that is a calibrated voltage for a known target current, reads the actual current passing through the drive transistor to a monitor line, turns off the light emitting device while modifying the calibrated voltage to make the current supplied through the drive transistor substantially the same as the target current, modifies the calibrated voltage to make the current supplied through the drive transistor substantially the same as the target current, and determines a current corresponding to the modified calibrated voltage based on predetermined current-voltage characteristics of the drive transistor.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: October 20, 2020
    Assignee: Ignis Innovation Inc.
    Inventor: Gholamreza Chaji
  • Patent number: 10803803
    Abstract: An organic light emitting diode pixel compensation method, an organic light emitting diode pixel compensation device and a display device are provided. The organic light emitting diode pixel compensation method includes: testing drive transistors of sub-pixels in an Nth row to obtain first test information; testing drive transistors of sub-pixels in an Mth row to obtain second test information; calculating a compensation parameter based on the first test information and the second test information; and compensating the sub-pixels in the Nth row, the sub-pixels in the Mth row and the sub-pixels in a rows adjacent to the Nth row and the Mth row based on the compensation parameter, where N=an+b, M=an+c, a?2, 0?b<a, 0?c<a, and a, b, c and n are each an integer.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: October 13, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Pan Xu
  • Patent number: 10789891
    Abstract: The present disclosure provides a pixel circuit. The pixel circuit may compensate the threshold voltage of the driving unit, such that the driving current provided by the driving unit to the light emitting device is only relevant to the difference between the voltage acting on the signal input terminal acting of the driving unit and the voltage of the data signal, which thereby eliminates the influence caused by the variation of the threshold voltage of the driving unit and improves the uniformity of an displayed image. In addition, the present disclosure also relates to a driving method of the pixel circuit, as well as a display substrate and a display apparatus both including the pixel circuit.
    Type: Grant
    Filed: November 18, 2019
    Date of Patent: September 29, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Yuhsiung Feng
  • Patent number: 10777169
    Abstract: Certain aspects of the present disclosure provide a method for driving a plurality of display panels including a first display panel and a second display panel. The method includes receiving a first synchronization signal from the first display panel. The method further includes receiving a second synchronization signal from the second display panel. The method further includes determining a phase difference between the first synchronization signal and the second synchronization signal. The method further includes computing at least one phase shift offset based on the determined phase difference, the at least one phase shift offset being configured to reduce the phase difference between the first synchronization signal and the second synchronization signal. The method further includes providing a first phase shift offset of the at least one phase shift offset to the first display panel. The method further includes providing a unified synchronization signal to a display processor.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: September 15, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Dileep Marchya, Balamukund Sripada, Srinivas Pullakavi
  • Patent number: 10762859
    Abstract: A display device includes a display pixel unit and a signal processing unit. The display pixel unit includes a plurality of pixels arranged in a horizontal direction and a vertical direction. The signal processing unit determines a correction value corresponding to a target pixel based on differences between gradation data of the target pixel and gradation data of peripheral pixels disposed in the horizontal direction, the vertical direction, and an oblique direction with respect to the target pixel, respectively, among the plurality of pixels, increases or decreases a pixel value of the target pixel based on the correction value, and corrects the gradation data of the target pixel to reduce the differences.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: September 1, 2020
    Assignee: JVC KENWOOD CORPORATION
    Inventors: Nobuki Nakajima, Takeshi Makabe, Shunsuke Izawa
  • Patent number: 10757416
    Abstract: Provided is a method for adaptively compressing image data. A refresh rate and a compression rate of the image data are determined based on motion information of the image data, and the image data are compressed based on the determined refresh rate and compression rate.
    Type: Grant
    Filed: May 1, 2015
    Date of Patent: August 25, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-o Park, Kwang-pyo Choi, Jeong-hoon Park
  • Patent number: 10732775
    Abstract: A touch sensor may include a substrate and may include electrode units, first demultiplexers, second demultiplexers, and driving pads all located on the substrate. The electrode units each may include a plurality of electrode groups, the electrode groups each including a plurality of touch electrodes. The first demultiplexers each may include a plurality of sub-demultiplexers and each may be electrically connected to a corresponding one of the electrode units. Each of the sub-demultiplexers of a first demultiplexer may be electrically connected to a corresponding one of the electrode groups of a corresponding electrode unit. The second demultiplexers may be connected between the first demultiplexers and the driving pads.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: August 4, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hwa Jeong Kim, Jae Sic Lee, Na Yun Kwak, Dong Hwan Kim, Seung Woo Sung, Min Kyu Woo, Min Ku Lee, Seong Jun Lee, Sang Jin Pak, Sang Hyun Jun
  • Patent number: 10714011
    Abstract: A mobile electronic device includes a display having an active array and a reference array. The active array includes a pixel and the reference array includes a reference pixel. The mobile electronic device also includes processing circuitry communicatively coupled to the display. The processing circuitry is configured to instruct the active array to drive the pixel based at least in part on a current-voltage relationship of the pixel and a reference current-voltage relationship of the reference pixel.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: July 14, 2020
    Assignee: Apple Inc.
    Inventors: Sheng Zhang, Chih-Wei Yeh, Yunhui Hou, Chaohao Wang, Wei H. Yao, Paolo Sacchetto, Derek K. Shaeffer, Henry C. Jen, Shingo Hatanaka, Hasan Akyol, Mahdi Farrokh Baroughi, Hopil Bae
  • Patent number: 10706762
    Abstract: A display device is disclosed. The present display device comprises: a display unit of which the color gamut range varies according to the size of a driving current; and a processor for analyzing, per frame unit, the color distribution of an image signal, and adjusting, per frame unit, the size of the driving current on the basis of the analyzed color distribution such that the display unit operates within the color gamut range.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: July 7, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ho-young Jung, Jee-young Yeom, Min-woo Lee, Won-hee Choe
  • Patent number: 10700730
    Abstract: A semiconductor device, includes: a data input pin; a data output pin; an internal circuit; a register accessible by the internal circuit; and a transceiver circuit including a transfer buffer and configured to: write data input through the data input pin to the transfer buffer, and output the data through the data output pin; and transfer data stored in the transfer buffer to the register when a transfer command is input through the data input pin.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: June 30, 2020
    Assignee: ROHM CO., LTD.
    Inventor: Norikazu Murakami