Solid Body Light Emitter (e.g., Led) Patents (Class 345/82)
  • Patent number: 11832485
    Abstract: A display apparatus includes a substrate, a wire having an inner edge including first and second portions, a first insulating layer covering a portion of the substrate, and a second insulating layer. The portion of the substrate covered by the first insulating layer is closer to a center of the substrate than the wire, the first insulating layer covers a part of the first portion of the wire and a part of the second portion of the wire, and a first end of the first insulating layer is disposed on the wire. The second insulating layer covers the first insulating layer and has a second end disposed on the wire. A distance between the first end and the second end covering the first portion of the wire is different from a distance between the first end and the second end covering the second portion of the wire.
    Type: Grant
    Filed: April 25, 2022
    Date of Patent: November 28, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kiwook Kim, Kwangmin Kim, Yangwan Kim, Jisu Na, Minwoo Byun
  • Patent number: 11830412
    Abstract: A display device includes pixels coupled to first scan lines, second scan lines, emission control lines, and data lines; a first scan driver to supply a scan signal to each of the first scan lines at a first frequency to drive the display device at a first driving frequency, and to supply the scan signal to each of the first scan lines at a second frequency to drive the display device at a second driving frequency lower than the first driving frequency; a second scan driver to supply a scan signal to each of the second scan lines at the first frequency to drive the display device at the first driving frequency, and to supply the scan signal to each of the second scan lines at the second frequency to drive the display device at the second driving frequency; an emission driver to supply an emission control signal to each of the emission control lines at the first frequency; and a data driver to supply a data signal to each of the data lines in response to the scan signal supplied to each of the first scan lines
    Type: Grant
    Filed: September 26, 2022
    Date of Patent: November 28, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyong Hwan Oh, Ji Hyun Ka, Ki Myeong Eom, Hai Jung In, Jin Jeon, Won Kyu Kwak, Hyun Lee, Hwan Soo Jang, Jin Tae Jeong
  • Patent number: 11830883
    Abstract: A display device includes: a substrate having a display area and a peripheral area; a first wiring layer to transfer a gate signal in the display area; a second wiring layer to transfer a data voltage in the display area; a data fan-out having a first data fan-out wire connected to the second wiring layer; and a data flexible printed circuit board electrically connected to the first data fan-out wire in the peripheral area. The first data fan-out wire includes a first zigzag portion having a zigzag shape and a first straight portion that extends from the first zigzag portion. A width of the first straight portion is larger than a width of the first zigzag portion.
    Type: Grant
    Filed: January 28, 2022
    Date of Patent: November 28, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventor: Sun Kwun Son
  • Patent number: 11830404
    Abstract: A display apparatus includes a display panel, an afterimage compensator and a data driver. The display panel displays an image. The afterimage compensator writes first stress data of input image data corresponding to a first area to a first memory area in a first block size and second stress data of the input image data corresponding to a second area to a second memory area in a second block size different from the first block size and compensates a grayscale value of the input image data based on the first stress data and the second stress data. The data driver generates a data voltage based on a compensated grayscale value and outputs the data voltage to the display panel.
    Type: Grant
    Filed: February 7, 2022
    Date of Patent: November 28, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae Shin Kim, Inbok Song, Sung-Yeol Baek, Kyungsu Lee
  • Patent number: 11816285
    Abstract: An input-display device includes a display panel, sensor electrodes, and a display driver. The display panel includes source lines. The sensor electrodes are capacitively coupled to the source lines. The display driver is configured to receive image data. The display driver is further configured to process the image data in response to a detection of a horizontal stripe pattern in an image corresponding to the image data. The display driver is further configured to drive the source lines based at least in part on the processed image data.
    Type: Grant
    Filed: March 29, 2022
    Date of Patent: November 14, 2023
    Assignee: Synaptics Incorporated
    Inventors: Daisuke Ito, Nobukazu Tanaka, Masaaki Shiomura
  • Patent number: 11810517
    Abstract: A display device includes a pixel having a first transistor connected between first and second nodes to generate a driving current; an emission driver that supplies an emission control signal including an off-duty corresponding to first and second gate-off periods to an emission control line during a frame period; a scan driver that supplies first to fourth scan signals to the first to fourth scan lines in a first non-emission period, respectively, and that supplies the first scan signal to the first scan line in a second non-emission period; a data driver that supplies a data signal to the data line; and a controller adjusting the off-duty of the emission control signal that is a width of each of the first and second non-emission periods in response to a dimming signal, and that controls a timing at which the first scan signal is supplied in the second non-emission period.
    Type: Grant
    Filed: July 8, 2022
    Date of Patent: November 7, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyoung Jin Park, Yang Wan Kim
  • Patent number: 11810523
    Abstract: An embodiment enables natural and smooth change in the brightness of a backlight unit and is able to reduce flicker by changing a dimming value between frames through a mixed function including a plurality of functions having different characteristics.
    Type: Grant
    Filed: April 20, 2021
    Date of Patent: November 7, 2023
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Hyun Kyu Jeon, Ji Won Lee, Jung Eun Baek, Xin Cui, Do Hoon Lee
  • Patent number: 11804163
    Abstract: Provided is a display method which includes: acquiring luminance information of the environment where the display device is currently located, wherein the luminance information includes at least one of ambient luminance information and reflection luminance information; and based on the acquired luminance information, determining a target gamma curve of the display device. A display device and a non-transitory computer-readable computer storage medium are also provided.
    Type: Grant
    Filed: May 7, 2020
    Date of Patent: October 31, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Xiangchun Xiao
  • Patent number: 11805239
    Abstract: A rotary display device includes a display module, a rotating shaft, a transmission apparatus, an acquisition apparatus and a control apparatus. The transmission apparatus is configured to drive the display module to rotate with the rotating shaft. The control apparatus is configured to: receive information of picture(s), acquired by the acquisition apparatus, of an outside of the display module and determine whether a picture includes face figure(s); if no face figure is included in the picture, control the display module to display images in a first condition; if the face figure(s) are included in the picture, control the display module to display images in a second condition. A second refresh rate in the second condition is greater than a first refresh rate in the first condition, and a second color depth in the second condition is greater than a first color depth in the first condition.
    Type: Grant
    Filed: January 21, 2021
    Date of Patent: October 31, 2023
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jiyang Shao, Yuxin Bi, Binhua Sun, Feng Zi
  • Patent number: 11800761
    Abstract: A display comprises a substrate (e.g., glass), a plurality of pixel circuits disposed on a back surface of the substrate, and a plurality of self-emitting devices disposed on a front surface of the substrate. The self-emitting devices are electrically connected to the plurality of pixel circuits by at least one electrically conductive via traveling through the substrate. Each pixel circuit comprises a first and a second transistor and a capacitor. The self-emitting devices may be LEDs or OLEDs for example.
    Type: Grant
    Filed: September 12, 2022
    Date of Patent: October 24, 2023
    Assignee: V-Finity, Inc.
    Inventor: Heng Liu
  • Patent number: 11800759
    Abstract: An array substrate is provided. The array substrate includes a respective first anode electrically connected to a respective first light emitting element in a respective first subpixel; a respective second anode electrically connected to a respective second light emitting element in a respective second subpixel; a respective third anode electrically connected to a respective third light emitting element in a respective third subpixel; and a respective fourth anode electrically connected to a respective fourth light emitting element in a respective fourth subpixel. An orthographic projection of the respective third anode on a base substrate substantially covers an orthographic projection of the first initialization connecting line on the base substrate, and covers an orthographic projection of at least portion of the respective third voltage supply line on the base substrate.
    Type: Grant
    Filed: October 19, 2020
    Date of Patent: October 24, 2023
    Assignees: Cheagdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Jie Dai, Tinghua Shang, Yi Zhang, Tingliang Liu, Siyu Wang, Huijuan Yang
  • Patent number: 11800775
    Abstract: A display device includes; pixel units arranged in a matrix on a first substrate, wherein each pixel unit among the pixel units includes a transmission region including a liquid crystal layer, and a reflection region spaced apart from the transmission region and including an organic light emitting layer.
    Type: Grant
    Filed: August 25, 2022
    Date of Patent: October 24, 2023
    Inventors: Won Seok Kim, Si Woo Kim
  • Patent number: 11790842
    Abstract: A driving circuit, a display panel, and a display device are provided. In the driving circuit, a first and second light-emitting control sub-circuits are configured to drive a light-emitting unit to emit light; an energy storage element; an operational sub-circuit is configured to compare a voltage at a point where the energy storage element is electrically connected with the operational sub-circuit with a reference voltage to obtain an output signal; a first data input sub-circuit is turned on or off according to the output signal, and when turned on, transmit a first data signal to the first and second light-emitting control sub-circuits to drive the light-emitting unit to emit light; a second data input sub-circuit is configured to be turned on or off according to the output signal, and when turned on, transmit a second data signal to the first and second light-emitting control sub-circuits to drive the light-emitting unit to emit light.
    Type: Grant
    Filed: June 14, 2023
    Date of Patent: October 17, 2023
    Assignee: HKC CORPORATION LIMITED
    Inventors: Renjie Zhou, Rongrong Li
  • Patent number: 11790846
    Abstract: A driving method of a display panel includes: determining a brightness band of the display panel, wherein brightness bands include a first brightness band to an Nth brightness band, maximum grayscale brightness of the first brightness band to the Nth brightness band decreases sequentially, and each brightness band includes three Gamma correction curves respectively corresponding to a first light emitting unit, a second light emitting unit, and a third light emitting unit each of an (N?M)th brightness band to the Nth brightness band also corresponds to at least one duty ratio; determining an input data voltage corresponding to at least one light emitting unit based on a Gamma correction curve that corresponds to the determined brightness band and an image to be displayed; and driving the display panel to display the image based on the determined input data voltage, or the determined input data voltage and the duty ratio.
    Type: Grant
    Filed: June 10, 2021
    Date of Patent: October 17, 2023
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Wenqiang Zhang, Rongjian Yan, Wenbin Chen
  • Patent number: 11790852
    Abstract: A display panel is provided in embodiments of the disclosure and includes multiple pixel units arranged in a matrix. The multiple pixel units are configured to receive data signals for image display. Each of the multiple pixel units includes a first display unit and a second display unit. The first display unit and the second display unit are connected in parallel between a first drive-voltage end and a second drive-voltage end. The first drive-voltage end is configured to receive a first drive voltage, and the second drive-voltage end is configured to receive a second drive voltage. During continuous display of two frames of images, when a first frame of image in the two frames of images is displayed, the first drive voltage is greater than the second drive voltage, and the first drive voltage and the second drive voltage cooperate to drive the first display unit to perform image display.
    Type: Grant
    Filed: June 7, 2023
    Date of Patent: October 17, 2023
    Assignee: HKC CORPORATION LIMITED
    Inventors: Renjie Zhou, Haoxuan Zheng
  • Patent number: 11783760
    Abstract: The present disclosure provides a pixel circuit and a display panel. The pixel circuit controls a conduction time of the driving module according to a connected triangle-wave analog signal, a time controlling analog signal, and a brightness control analog signal connected through an analog comparator, and controls a conduction degree of the driving module according to a brightness control analog signal connected through the analog comparator; thus a light-emitting time and/or luminous brightness of a light-emitting module is controlled, and multi-gray-scale display with a simpler pixel circuit structure is realized.
    Type: Grant
    Filed: September 22, 2021
    Date of Patent: October 10, 2023
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventors: Lei Wu, Mian Zeng, Liang Sun
  • Patent number: 11785171
    Abstract: A display device includes a substrate and an active pattern positioned above the substrate and including a plurality of channel regions and a plurality of conductive regions. The display device includes a plurality of scan lines extending substantially in a first direction. The display device includes a data line and a driving voltage line crossing the plurality of scan lines. The display device includes a first transistor including a first channel region among the plurality of channel regions and a first gate electrode. The display device includes a first connector electrically connecting the first gate electrode of the first transistor and a first conductive region among the plurality of conductive regions to each other. The driving voltage line overlaps at least a portion of the first connector along a direction orthogonal to an upper surface of the substrate.
    Type: Grant
    Filed: March 7, 2022
    Date of Patent: October 10, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Se Wan Son, Wang Woo Lee, Moo Soon Ko, Jung Hwa Kim, Jin Sung An, Ji Seon Lee
  • Patent number: 11783771
    Abstract: Disclosed are a display apparatus and a method for controlling same. The disclosed display apparatus and method for controlling same execute a first operation and a second operation to prevent afterimages from appearing on a display panel, the afterimages being significantly reduced by executing the second operation using the history of the first operation.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: October 10, 2023
    Assignee: LG ELECTRONICS INC.
    Inventor: Shin Ho Park
  • Patent number: 11775067
    Abstract: An image display device includes a display panel having a plurality of pixels, and a photoresistor pattern formed in a non-light emitting area between the plurality of pixels; a panel driving controller to drive light-emission control lines of the display panel; and a bio-signal detector that detects an output voltage of the photoresistor pattern which resistance is variable based on light reflected from the target object, and detects a bio-signal of the target object based on the detected output voltage, thereby, detecting the bio-signal of the target object using the image display light from the display panel may allow efficiently detecting the bio-signal without a separate light source or light source operation circuit for detecting the bio-signal.
    Type: Grant
    Filed: December 20, 2021
    Date of Patent: October 3, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventor: Jungtae Bae
  • Patent number: 11776488
    Abstract: A light-emitting substrate and a display device are provided by the present application. The durations of pre-set periods of a plurality of driving circuits decrease along a direction from close to data signal input terminals to away from the data signal input terminals, and/or durations of the pre-set periods of the plurality of driving circuits decrease along a direction from close to first control signal input terminals to away from the first control signal input terminals, which the light-emitting luminance of the light-emitting elements at a near-end and far-end solving a display problem with the display device.
    Type: Grant
    Filed: November 26, 2020
    Date of Patent: October 3, 2023
    Assignee: TCL China Star Optoelectronics Technology Co., Ltd.
    Inventors: Yan Li, Yihe Zhang, Lixia Li, Haiyan Quan, Duyeon Han
  • Patent number: 11778888
    Abstract: Disclosed is an electroluminescent display device comprising an active area for displaying an image, a dummy area provided in the periphery of the active area, wherein an image is not displayed in the dummy area, a scan line, an initializing line and an emission line arranged along a first direction in the dummy area, a high power source line and a data line arranged along a second direction, which intersects with the first direction, in the dummy area, and a plurality of thin film transistors disposed in the dummy area, wherein the plurality of thin film transistors include a driving thin film transistor, a switching thin film transistor provided to connect the driving thin film transistor and the data line with each other, and an operation control thin film transistor provided to connect the driving thin film transistor and the high power source line with each other, wherein the switching thin film transistor and the operation control thin film transistor are disconnected from each other.
    Type: Grant
    Filed: December 14, 2020
    Date of Patent: October 3, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: BoYoung Jung, Youngsun Jang, HongGyu Han, Taewon Lee
  • Patent number: 11776460
    Abstract: Active control of light emitting diodes (LEDs) and LED packages within LED displays is disclosed. LED packages are disclosed that include a plurality of LED chips that form at least one LED pixel for an LED display or an LED panel. Each LED package may include an active electrical element that is configured to receive a control signal and actively maintain an operating state, such as brightness or grey level while other LED packages are being addressed. Active electrical elements are disclosed that are configured to provide both forward and reverse bias states to LEDs to detect adverse operating conditions including reverse leakage and deviations to forward voltage levels. LED packages are also disclosed that may self-configure based on the manner in which various input or output lines are connected.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: October 3, 2023
    Assignee: CreeLED, Inc.
    Inventor: Christopher P. Hussell
  • Patent number: 11769440
    Abstract: A display device includes a matrix of pixel units each including a light-emitting element and a pixel circuit that causes the light-emitting element to emit light. The pixel circuit includes a first driver that drives the light-emitting element in response to the gradation value of an image in a range of gradation values less than or equal to a first boundary value and does not drive the light-emitting element in response to the image gradation value in a range of gradation values greater than the first boundary value, and a second driver that does not drive the light-emitting element in response to the image gradation value in a range of gradation values less than or equal to a second boundary value and drives the light-emitting element in response to the image gradation value in a range of gradation values greater than the second boundary value.
    Type: Grant
    Filed: February 1, 2021
    Date of Patent: September 26, 2023
    Assignee: KYOCERA CORPORATION
    Inventor: Takanobu Suzuki
  • Patent number: 11763749
    Abstract: A display system includes a display that has a first display area and a second display area. Each display area includes a plurality of subpixels, and each subpixel includes a light emitting device. A first power system is configured to output a first power supply positive voltage and a first power supply negative voltage to drive subpixels in the first display area. A second power system is configured to output a second power supply positive voltage and a second power supply negative voltage to drive subpixels in the second display area.
    Type: Grant
    Filed: October 12, 2020
    Date of Patent: September 19, 2023
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Shiangruei Ouyang, Chujung Shih
  • Patent number: 11763748
    Abstract: A control circuit of a pixel-addressable display corrects a brightness of a pixel element of a pixel circuit of the display based on a curvature of a curvable area of the display. The control circuit selectively applies data line voltages to the pixel circuit. The pixel circuit applies a driving voltage to the pixel element based on the data line voltages.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: September 19, 2023
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Hsing-Hung Hsieh, Dehuei Chen, Ann Alejandro Villegas
  • Patent number: 11760258
    Abstract: One or more indicators provide an indication of the energy source of power for one or more vehicles. The indicators may be positioned on a vehicle and/or on other structures such as parking garages, tunnels, and entrance gates. The indicators may be visual and/or acoustic. On a vehicle the indicators are positioned to most likely be intact during and after an accident and provide a predetermined indication that identifies an energy source that provides power for the vehicle.
    Type: Grant
    Filed: May 12, 2021
    Date of Patent: September 19, 2023
    Inventor: William S. Lerner
  • Patent number: 11763747
    Abstract: A pixel driving circuit, a display panel, and a display device are provided. A first driving module and a second driving module of the pixel driving circuit each are electrically connected with a light-emitting unit, a first power-supply terminal, and a second power-supply terminal. The first driving module is configured to receive a first voltage from the first power-supply terminal and receive a second voltage from the second power-supply terminal according to a first scanning signal and a data signal. The second driving module is configured to receive the second voltage from the first power-supply terminal and receive the first voltage from the second power-supply terminal according to a second scanning signal and the data signal. The first driving module and the second driving module alternately drive the light-emitting unit to emit a light.
    Type: Grant
    Filed: June 7, 2023
    Date of Patent: September 19, 2023
    Assignee: HKC CORPORATION LIMITED
    Inventors: Renjie Zhou, Haoxuan Zheng
  • Patent number: 11763717
    Abstract: The present invention provides a drive-control method and control apparatus of display screens, and a display screen thereof, the method includes: determining a staged target gray-scale value of all sub-pixels in the currently scanned row, based on a current gray-scale value of each sub-pixel, the staged target gray-scale value and a pre-stored look-up table, determining the charging-discharging target count corresponding to each column channel in the current scan row, terminating the charging-discharging of the column channel, when the count of the counter is consistent with the target count corresponding to the charging or discharging of each column channel. The present invention in implementation not only has simple structure and a small scale circuit, but also low power consumption.
    Type: Grant
    Filed: March 2, 2022
    Date of Patent: September 19, 2023
    Assignee: SUZHOU JIAOTU ELECTRONICS CO. LTD.
    Inventor: Qingqing Xie
  • Patent number: 11763732
    Abstract: A display device includes: a light-emitting profile creation circuit creating a first light-emitting profile from a first image signal; and an image signal adjustment circuit adjusting a second image signal in accordance with the first light-emitting profile.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: September 19, 2023
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hiroyuki Furukawa, Masafumi Ueno, Naoto Inoue, Chie Toridono
  • Patent number: 11756485
    Abstract: An emission driver includes stages outputting an emission control signal. At least one of the stages includes an input circuit controlling voltages of a first node and a second node, an output circuit supplying a voltage of first power or a voltage of second power to an output terminal as the emission control signal in response to a voltage of a third node and a voltage of a fourth node, a first signal processor controlling the voltage of the fourth node, a second signal processor controlling the voltage of the fourth node, and a third signal processor controlling the voltage of the third node electrically connected to the first node in response to signals supplied to the second input terminal and the third input terminal and the voltage of the first node.
    Type: Grant
    Filed: April 4, 2022
    Date of Patent: September 12, 2023
    Assignee: Samsung Display Co., Ltd
    Inventor: Ji Su Na
  • Patent number: 11756478
    Abstract: A driving circuit, a display panel, and a panel are provided. The driving circuit includes a substrate and signal lines and a plurality of load components disposed on the substrate. The plurality of load components are distributed along a first direction. Each of the load components is connected to the signal lines. The signal lines include at least two signal input terminals. Signals are loaded to signal lines through the at least two signal input terminals.
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: September 12, 2023
    Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Haoran Li
  • Patent number: 11749229
    Abstract: A display device includes a display panel including a plurality of pixels for displaying an image, and a panel controller configured to receive image signals and convert the image signals into correction image signals. The panel controller includes a first circuit to accumulate the correction image signals each frame period and generate degradation data based on the accumulated correction image signals, and a second circuit configured to determine reference data from the degradation data and generate the correction image signals by correcting the image signals to have a target luminance that is changed based on the reference data.
    Type: Grant
    Filed: April 28, 2022
    Date of Patent: September 5, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Ji-Won Cha
  • Patent number: 11747531
    Abstract: A display substrate, a fine metal mask set and a manufacturing method thereof are provided. The display substrate includes a plurality of repeat units. Each of the plurality of repeat units includes one first-color sub-pixel, one second-color sub-pixel pair and one third-color sub-pixel which are arranged in a first direction, the second-color sub-pixel pair includes two second-color sub-pixels arranging in a second direction. Light-emitting layers of adjacent sub-pixels of two different colors in the first direction are connected with each other; light-emitting layers of the third-color sub-pixel and the second-color sub-pixel which are adjacent to each other in the second direction are connected with each other; and a spacing is disposed between the light-emitting layer of the first-color sub-pixel and the light-emitting layer of at least one of the second-color sub-pixel and the third-color sub-pixel which are adjacent to the first-color sub-pixel in the second direction.
    Type: Grant
    Filed: August 4, 2022
    Date of Patent: September 5, 2023
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Fengli Ji, Chang Luo, Jianpeng Wu, Lujiang Huangfu
  • Patent number: 11749196
    Abstract: A pixel includes a first switching transistor, a second switching transistor, a driving transistor, and a light emitting element. The first switching transistor includes a first terminal to which a bias power supply voltage is applied, a second terminal connected to a first node, and a gate terminal to which a light emitting element initialization signal is applied. The second switching transistor includes a first terminal connected to the first node, a second terminal connected to a second node, and a gate terminal to which the light emitting element initialization signal is applied. The driving transistor includes a first terminal connected to the second node, a second terminal connected to a third node, and a gate terminal. The light emitting element is connected to the driving transistor. The first node is connected to the third node, and the bias power supply voltage is applied to the second and third nodes.
    Type: Grant
    Filed: October 6, 2022
    Date of Patent: September 5, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Keunwoo Kim
  • Patent number: 11749143
    Abstract: Active Matrix Organic Light Emitting Diode (AMOLED) displays, novel pixel circuits therefor, and methods of programming the pixel circuit and measuring the current of the pixel circuit and OLED thereof are disclosed. One pixel circuit includes four TFT transistors, a storage capacitor and an OLED device and is programmed with use of voltage supplied through a data line. One method measures currents of the OLED and the pixel circuit through the data line by a readout circuit.
    Type: Grant
    Filed: November 22, 2018
    Date of Patent: September 5, 2023
    Assignee: Ignis Innovation Inc.
    Inventors: Arash Moradi, Jafar Talebzadeh, Junhu He, Shuenn-Jiun Tang
  • Patent number: 11751459
    Abstract: One or more embodiments of the present disclosure provides a stretchable display device. The stretchable display device includes a lower substrate on which a display area displaying an image and a non-display area adjacent to the display area are disposed, a plurality of pixel substrates disposed in the display area, a plurality of outer substrates disposed in the non-display area, a plurality of pixels disposed on the plurality of pixel substrates, and a plurality of gate drivers disposed on the plurality of outer substrates and outputting gate voltages to the plurality of pixels, and at least one blocking layer overlapping the plurality of gate drivers. Thus, it is feasible to prevent image defects in the stretchable display device from occurring due to external static electricity.
    Type: Grant
    Filed: December 2, 2020
    Date of Patent: September 5, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Seulki Kim, Hyunju Jung
  • Patent number: 11743438
    Abstract: A method for reducing a color shift of image pixels of an image for a motor vehicle captured by a camera, a computer program product and a control device for the vehicle are disclosed. For the respective image pixel of the image, the method involves determining a color information, which describes a color of the image pixel, checking whether the determined color information is larger than a minimum color information and smaller than a maximum color information, wherein the minimum and maximum color information delimit a color information range, in which reference image pixels describing a reference object sway. When the checking is successful, calculating a corrected color information in consideration of the determined color information and a correction factor and providing the calculated corrected color information instead of the determined color information, wherein the corrected color information in comparison to the determined color information has a reduced color shift.
    Type: Grant
    Filed: March 24, 2022
    Date of Patent: August 29, 2023
    Assignee: Connaught Electronics Ltd.
    Inventors: Mark Patrick Griffin, Brian Michael Thomas Deegan
  • Patent number: 11741884
    Abstract: A display device according to an embodiment of the present disclosure includes pixels connected to a first scan line, a second scan line, a third scan line, a data line, a first emission control line, and a second emission control line.
    Type: Grant
    Filed: May 18, 2021
    Date of Patent: August 29, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyun Joon Kim, Jang Mi Kang, Hae Min Kim, Jun Hyun Park, Min Jae Jeong, Ki Hyun Pyo
  • Patent number: 11743990
    Abstract: The invention relates to a lighting system comprising a load comprising a parallel configuration of a first LED load having a first forward voltage, and a first switch coupled in series with the first LED load; and a second LED load, having a second forward voltage being different than the first forward voltage; a switched mode power supply comprising a switching element; an inductor; a diode; a set of output pins for coupling to the load; and a capacitor coupled across the set of output pins; wherein the switched mode power supply is arranged to provide a voltage across the set of output pins, wherein the lighting system comprises a further inductor coupled between the one of the output pins and the load.
    Type: Grant
    Filed: July 16, 2020
    Date of Patent: August 29, 2023
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Theo Gerrit Zijlman, Eugen Jacob De Mol, Henricus Marius Joseph Maria Kahlman, Zhaomin Meng, Dmytro Viktorovych Malyna, Marcel Beij, Franciscus Jacobus Vossen
  • Patent number: 11735113
    Abstract: The present disclosure provides a pixel driving circuit, a method of driving the same, and a display device. In the pixel driving circuit, under the control of a gate line, a data writing-in sub-circuit controls to connect or disconnect a data line and a first common node, and controls to connect or disconnect the first common node and a gate electrode of the driving transistor; under the control of a reset signal line, a first reset control sub-circuit controls to connect or disconnect a reference voltage input terminal and a second common node, and controls to connect or disconnect the second common node and the gate electrode of the driving transistor; a first end of a third capacitor unit is connected to the first common node and/or the second common node, and a second end of the third capacitor unit is connected to the first electrode of the driving transistor.
    Type: Grant
    Filed: April 15, 2021
    Date of Patent: August 22, 2023
    Assignee: BOE Technology Group Co., Ltd.
    Inventor: Tian Dong
  • Patent number: 11733807
    Abstract: A display may have an array of pixels. The pixels may contain light-emitting diodes. When it is desired to use the display to operate as a light sensor, some of the light-emitting diodes may be forward biased to emit light while some of the light-emitting diodes are reversed biased to detect the emitted light after the emitted light has reflected from an external object. During light sensing operations, one or more areas of the display may be temporarily deactivated so that the light-sensing pixels may measure the reflected light. Vertical lines may serve both as data loading lines and as current sensing lines. Currents may be sensed during drive transistor current compensation and during light sensing. The vertical lines may load signals into the pixels that forward bias the light-emitting diodes to emit light when it is desired to display images for a user.
    Type: Grant
    Filed: July 18, 2016
    Date of Patent: August 22, 2023
    Assignee: Apple Inc.
    Inventors: Hung Sheng Lin, Chin-Wei Lin, Tsung-Ting Tsai
  • Patent number: 11735115
    Abstract: A pixel driving circuit includes a data writing sub-circuit, a driving sub-circuit, and a control sub-circuit. The data writing sub-circuit is configured to: in response to a first scanning signal and a third scanning signal, write a first data signal into the driving sub-circuit; and in response to a second scanning signal and the third scanning signal, write a second data signal into the driving sub-circuit. The control sub-circuit is configured to, in response to an enable signal, connect a driving transistor to a first power supply voltage signal terminal and an element to be driven. The driving sub-circuit is configured to: according to the first data signal and a first power supply voltage signal, output a driving to signal; and according to the second data signal and the first power supply voltage signal, control an operating state of the element to be driven.
    Type: Grant
    Filed: June 13, 2022
    Date of Patent: August 22, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Dongni Liu, Minghua Xuan, Xiaochuan Chen, Xue Dong, Haoliang Zheng, Han Yue, Ning Cong
  • Patent number: 11727871
    Abstract: A display device includes a display panel which displays an image, a current compensator and a panel driver. The current compensator calculates a load based on input image data and compensates the input image data to output compensation image data having a target current corresponding to the load. The panel driver drives the display panel based on the compensation image data. The current compensator calculates the load for the input image data based on a combination of load weights calculated by different variables.
    Type: Grant
    Filed: June 29, 2021
    Date of Patent: August 15, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kihyun Pyun, Minyoung Park, Eunjin Choi
  • Patent number: 11727853
    Abstract: A shift register unit, a gate driving circuit, a display device, and a driving method are disclosed. The shift register unit includes a blanking unit, a first transmission circuit and a first input-output unit. The blanking unit is configured to charge a pull-up control node in response to a compensation selection control signal and input a blanking pull-up signal to a blanking pull-up node. The first transmission circuit is electrically connected to the blanking pull-up node and the first pull-up node; and the first input-output unit includes a first leakage preventing structure, the first leakage preventing structure is electrically connected to the first pull-up node and a first leakage preventing node respectively, and the leakage preventing structure is configured to control a level of the first leakage preventing node under the control of the level of the first pull-up node to prevent the first pull-up node from leaking.
    Type: Grant
    Filed: June 16, 2022
    Date of Patent: August 15, 2023
    Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xuehuan Feng, Yongqian Li
  • Patent number: 11727866
    Abstract: The present disclosure relates to a power management device and a display device comprising the same, and more particularly, to a power management device and a display device comprising the same, capable of reducing the power consumption of a display device by disabling a gamma reference voltage generation circuit when the display device is driven at a low scan rate.
    Type: Grant
    Filed: December 20, 2021
    Date of Patent: August 15, 2023
    Assignee: LX SEMICON CO., LTD.
    Inventor: Sung Ha Kim
  • Patent number: 11727881
    Abstract: A pixel circuit and a display panel are provided. The display includes the pixel circuit. The pixel circuit includes a data line, a scan line, a plurality of hierarchical 2T1C circuits, a step-down circuit, and a reset circuit. The data line is configured to transmit a source data signal. The scan line is configured to transmit a scan signal. Each input of the plurality of hierarchical 2T1C circuits is connected to the scan line in parallel. An input of the step-down circuit is connected to the data line and an output of the step-down circuit is connected to another input of each 2T1C circuit. The reset circuit is connected to the input of the step-down circuit.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: August 15, 2023
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventors: Yong Chen, Jun Li, Liang Sun
  • Patent number: 11719989
    Abstract: The present invention provides a display panel and an electrical apparatus. The display panel includes: at least one displaying region, the displaying region including a plurality of pixel points; at least one light transmission region, the light transmission region disposed alternately with the displaying region, and the light transmission region including light transmission thin films laminated. The light transmission region further includes a light transmittance adjustment layer located between any adjacent two of the light transmission thin films.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: August 8, 2023
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Zhenfei Cai
  • Patent number: 11721280
    Abstract: A display device and an electronic equipment provided by the present application make a reflectance of a transition display region close to a reflectance of a main display region by disposing a metal reflective portion in gaps between a plurality of second pixel driving circuits in the transition display region, preventing an obvious boundary from occurring between the main display region and the transition display region when they are in a screen-off state and are under a condition of being irradiated by strong light.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: August 8, 2023
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Tao Chen
  • Patent number: 11720218
    Abstract: To provide a highly browsable data processing device or a highly portable data processing device, a data processing device including the following is devised: an input/output unit provided with a display portion which can be folded and unfolded and a sensor portion that can sense the folded and unfolded states of the display portion and can supply data on fold, and an arithmetic unit that stores a program for executing different processing depending on the data on fold.
    Type: Grant
    Filed: January 6, 2022
    Date of Patent: August 8, 2023
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Hiroshi Matsumoto
  • Patent number: RE49714
    Abstract: An organic light emitting display capable of substantially preventing IR drop of a power source wiring line and coupling of data lines is disclosed. In one aspect, the organic light emitting display includes pairs of data lines between adjacent sub-pixels. The data lines are arranged to run parallel with a coupling blocking wiring line provided between each pair.
    Type: Grant
    Filed: June 8, 2020
    Date of Patent: October 24, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ki-Nyeng Kang, Na-Young Kim