Solid Body Light Emitter (e.g., Led) Patents (Class 345/82)
  • Patent number: 11568798
    Abstract: A display panel includes a pixel circuit that includes a light emitting module, a driving module, a first dual control module, and a second dual control module. A control end of the driving module is connected to a first node. The first dual control module has a control end connected to a first scanning line and has a first end connected to the first node. A first capacitor is formed between an intermediate node of the first dual control module and a first potential line. The second dual control module has a first end connected to the first node and has a second end connected to the driving module. A second capacitor is formed between an intermediate node of the second dual control module and a second potential line. Capacitance of one of the first capacitor and the second capacitor is greater than another.
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: January 31, 2023
    Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Xingda Xia, Jujian Fu, Nana Xiong, Yuqi Hu
  • Patent number: 11562693
    Abstract: A pixel driving circuit includes a current controlling module, an outputting module and a time length controlling module including a comparator, a first energy storage element, an offset voltage writing sub-circuit, and first and second output sub-circuits. First terminal of first energy storage element is connected with first input terminal of comparator and second terminal with the first output sub-circuit. The second output sub-circuit is connected with second input terminal of comparator. The offset voltage writing sub-circuit writes an offset voltage of comparator to the first energy storage element. One of the first and second output sub-circuits outputs time signal and the other outputs reference voltage signal. The comparator outputs comparison signal according to the time signal and the reference voltage signal. The current controlling module outputs current signal.
    Type: Grant
    Filed: March 16, 2021
    Date of Patent: January 24, 2023
    Assignees: Beijing BOE Display Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Ning Cong, Minghua Xuan, Can Zhang, Xiaochuan Chen, Lijun Yuan, Qi Qi
  • Patent number: 11561751
    Abstract: A display device includes a signal receiver configured to receive an image signal; a display including a plurality of modules each including a plurality of light sources, and display an image based on the received image signal; and a controller configured to perform first uniformity calibration between light sources within each individual module with regard to the modules, and second uniformity calibration between the modules, wherein the controller controls the first uniformity calibration to be applied to the image signal received in the signal receiver based on a first coefficient determined for each of the light sources within each individual module, controls the second uniformity calibration to be applied to the image signal subjected to the first uniformity calibration based on a second coefficient determined for each of the modules, and controls a calibrated image to be displayed based on the image signal subjected to the second uniformity calibration.
    Type: Grant
    Filed: May 14, 2021
    Date of Patent: January 24, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ji-yong Park, Min-jung Kim, Sang-kyun Im, Young-hoon Cho
  • Patent number: 11562694
    Abstract: A pixel circuit 16(n) and a pixel circuit 16(n?1) acquire a data signal from a data line 14. A selector 30(n) supplies the data signal acquired from the pixel circuit 16(n) to a light emitting element selected from the light emitting elements 18(n?1), 18(n), and 18(n+1). A selector 30(n?1) can select at least the light emitting element 18(n?1), and supplies the data signal acquired from the pixel circuit 16(n?1) to the selected destination. In a sub-frame B, the selector 30(n) selects the light emitting elements 18(n) and 18(n+1), and the selector 30(n?1) selects the light emitting element 18(n?1). In a sub-frame A, the selector 30(n) selects the light emitting elements 18(n?1) and 18(n).
    Type: Grant
    Filed: September 29, 2021
    Date of Patent: January 24, 2023
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takeshi Koshihara, Hitoshi Ota, Takumi Kodama
  • Patent number: 11562682
    Abstract: A pixel circuit includes: a first transistor including a gate electrode connected to a first node, a source electrode connected to a first power line, and a drain electrode connected to a second power line; a light emitting element connected between the first transistor and the first or second power line; a second transistor connected between a data line and the first node, and including a gate electrode connected to a first scan line; a first capacitor connected between the first node and the source electrode of the first transistor; a third transistor connected between the first node and the first power line, and including a gate electrode connected to a second node; a fourth transistor connected between the second node and the data line, and including a gate electrode connected to a second scan line; and a second capacitor connected between the second node and a first control line.
    Type: Grant
    Filed: July 8, 2020
    Date of Patent: January 24, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun Joon Kim, Kyung Hoon Chung
  • Patent number: 11562695
    Abstract: An electro-optical device includes a plurality of digital scanning lines, a digital signal line, and a plurality of pixel circuits. Each of the pixel circuits includes a light emitting element and a digital driving circuit. The digital driving circuit performs digital driving to turn the light emitting element ON-state or OFF-state based on a grayscale value. The digital driving circuit keeps the light emitting element ON-state by supplying a drive current to the light emitting element, in a period in which an enable signal is active, of a grayscale display period having a length corresponding to the grayscale value. The control line driving circuit sets a period in which the enable signal is active. A ratio, with respect to the grayscale display period, of an ON-state period in which the light emitting element is ON-state changes in accordance with the period in which the enable signal is active.
    Type: Grant
    Filed: December 22, 2021
    Date of Patent: January 24, 2023
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Yoichi Momose, Mitsutoshi Miyasaka
  • Patent number: 11557254
    Abstract: A pixel of an OLED display device includes a capacitor coupled between first and second nodes, first and second transistors, each including a gate receiving a respective initialization signal, a first terminal receiving a first power supply voltage, and a second terminal coupled to the capacitor, a third transistor including a first terminal coupled to a data line and a second terminal coupled to the first node, a fourth transistor including a gate coupled to the second node, a first terminal receiving the first power supply voltage, and a second terminal coupled to a third node, a fifth transistor including a first terminal coupled to the third node and a second terminal coupled to the second node, sixth and seventh transistors receiving a scan signal, eighth and ninth transistors receiving an emission signal, and an OLED.
    Type: Grant
    Filed: August 3, 2020
    Date of Patent: January 17, 2023
    Inventors: Na-Young Kim, Dong-Hwi Kim, Chul Ho Kim, Yun Hwan Park, Jin Jeon, Hyun Wook Choi
  • Patent number: 11557111
    Abstract: The invention relates to a method for determining a start of relaxation (tR) when switching over an optical display device (1) controllable pixel by pixel from a burn-in image (EB?) to a relaxation image (RB), wherein. A trigger image area (TB) having at least one image pixel is set to pixel values such that a parameter determined based on the at least one pixel value across the trigger image area (TB) differs between the burn-in image (EB?) and the relaxation image (RB). The local distribution of a greyscale value is continuously recorded by means of a camera (3, 13). A trigger subfield (20) comprising at least one sensor pixel (15) is defined matching the trigger image area (TB).
    Type: Grant
    Filed: June 8, 2021
    Date of Patent: January 17, 2023
    Assignee: TechnoTeam Holding GmbH
    Inventors: Udo Krüger, Ingo Rotscholl, Ralf Poschmann, Tobias Porsch
  • Patent number: 11557242
    Abstract: A display apparatus is disclosed, which comprises a display panel including pixels connected to the gate lines and data lines, a data driver configured to sequentially output data signals and output selection signals, and a distributor comprised of transistors connected to each of the data lines and switched in accordance with the selection signal to output the data signals sequentially output from each of a plurality of source channels to the connected data lines, wherein a cycle of each of the selection signals has a transistor-on period and a transistor-off period, a first cycle of a first selection signal among the selection signals is different from a second cycle of the first selection signal, and a first transistor-off period in the first cycle of the first selection signal is different from a second transistor-off period in the second cycle of the first selection signal.
    Type: Grant
    Filed: April 22, 2022
    Date of Patent: January 17, 2023
    Assignee: LG Display Co., Ltd.
    Inventor: YeonWook Kang
  • Patent number: 11557249
    Abstract: The present invention provides a method of controlling a display panel. The display panel includes a plurality of subpixels and a plurality of scan lines coupled to the plurality of subpixels. The method includes steps of: scanning a first scan line among the plurality of scan lines to turn on at least one of the plurality of subpixels coupled to the first scan line during a subframe period among a display frame period; and discharging a second scan line among the plurality of scan lines during a non-display period following the subframe period. Wherein, the second scan line is different from the first scan line.
    Type: Grant
    Filed: February 7, 2021
    Date of Patent: January 17, 2023
    Assignee: NOVATEK Microelectronics Corp.
    Inventors: Chun-Fu Lin, Jhih-Siou Cheng, Yu-Sheng Ma, Jin-Yi Lin
  • Patent number: 11557639
    Abstract: The present application provides a display panel and a display device. The display panel includes a substrate, a driving circuit layer disposed on the substrate, and a light-emitting layer disposed on the driving circuit layer. The driving circuit layer includes a first metal layer, the first metal layer includes a first metal trace, the light-emitting layer includes multiple light-emitting portions, and a vertical distance between an orthographic projection of a center of each light-emitting portion projected on the first metal layer and a symmetry axis of the first metal trace is less than or equal to 5 ?m.
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: January 17, 2023
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Sisi Zhou
  • Patent number: 11550425
    Abstract: A display device according to an example embodiment includes a display portion displaying an image, and a sense portion that is disposed over one side of the display portion, and senses an external input, wherein the sense portion includes: at least one of first sense electrodes receiving a first sense signal that is changed in response to the external input, at least one of second sense electrodes that are disposed at a distance from the first sense electrodes, wherein the first sense electrodes are disposed between the second sense electrodes, and at least one of compensation electrode that are disposed spaced apart from and between the first sense electrodes, and to which a compensation signal is applied, wherein the compensation signal and the first sense signal are inverted in phase.
    Type: Grant
    Filed: May 27, 2022
    Date of Patent: January 10, 2023
    Inventor: Sang Hyun Lim
  • Patent number: 11551623
    Abstract: According to one embodiment, a display device includes a controller. The controller is configured to control voltages between the common electrode and pixel electrodes in first periods included in one frame period and control an operation of a light source in second periods included in the one frame period. The controller controls, in a first first period of the first periods included in the one frame period, the voltages between the common electrode and the pixel electrodes to write, following an immediately preceding one frame period, a video component of a same color as a color of a video component written by applying voltages between the common electrode and the pixel electrodes in a last first period of the first periods included in the immediately preceding one frame period.
    Type: Grant
    Filed: August 5, 2021
    Date of Patent: January 10, 2023
    Assignee: JAPAN DISPLAY INC.
    Inventor: Hirotaka Hayashi
  • Patent number: 11553569
    Abstract: The present disclosure relates to an LED driving technique. The present disclosure provides a technique of measuring a time for reaching a forward voltage of a currently driven LED by comparing a forward voltage sensed in a previous scan line and an LED voltage sensed in a current scan line and for compensating for an ON period of a PWM (pulse width modulation) signal by the measured time for reaching the forward voltage.
    Type: Grant
    Filed: August 20, 2021
    Date of Patent: January 10, 2023
    Assignee: Silicon Works Co., Ltd.
    Inventors: Ji Hwan Kim, Kyeong Rok Lee, Jong Hyun Yoon
  • Patent number: 11550407
    Abstract: A highly convenient display system is provided. A display system that enables a screen to be operated easily with a laser pointer is provided. A display system that enables a screen to be operated by a large number of people is provided. The display system includes a light-emitting apparatus and a display device. The light-emitting apparatus includes a means for emitting visible laser light and a means for emitting invisible light. The display device includes a display unit including a means for displaying an image and a means for obtaining positional information on a portion irradiated with the visible light, and a means for receiving the invisible light. The display system has a function of performing processing in accordance with the positional information when the invisible light is received.
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: January 10, 2023
    Inventors: Shunpei Yamazaki, Koji Kusunoki, Daisuke Kubota, Kensuke Yoshizumi
  • Patent number: 11545085
    Abstract: An example device includes a housing including a first surface facing a first direction and a second surface facing a second direction; a transparent cover formed on at least a portion of the first surface of the housing; a display disposed between the transparent cover and the second surface; a sensor disposed between the display and the second surface; and a control circuit, electrically connected to the sensor, for controlling the sensor, wherein the display can include: a first region including a plurality of pixels capable of displaying color; and a second region aligned on at least a portion of the sensor such that light acquired from the outside of the electronic device passes through the sensor.
    Type: Grant
    Filed: October 1, 2021
    Date of Patent: January 3, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Songhee Jung, Seungjun Hyun, Minsik Kim, Min-Sung Lee, Mooyoung Kim, Kihuk Lee
  • Patent number: 11545215
    Abstract: A method for writing to a memory is disclosed. The method includes generating a write current that flows to a memory cell of the memory, generating a mirror current that mirrors the write current, and inhibiting application of a write voltage to the memory cell of the memory based on the mirror current. A device that performs the method is also disclosed. A memory that includes the device is also disclosed.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: January 3, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company Limited
    Inventor: Chung-Cheng Chou
  • Patent number: 11546152
    Abstract: A display device connected to a signal source outputting a video signal using an encryption protocol and that transmits the encryption key to the signal source includes: a transmission unit that transmits an own encryption key uniquely set for the display device and an encryption key transmitted from another display device connected to the display device as a lower device to the signal source and another display device connected as an upper device; and a stop instruction unit that instructs another display device corresponding to a predetermined encryption key included in an encryption key group based on the order of the own encryption keys included in the encryption key group to stop transmitting the encryption key received when the own encryption key is included in the encryption key group including a plurality of encryption keys transmitted from another display device connected as the lower device.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: January 3, 2023
    Assignee: SHARP NEC DISPLAY SOLUTIONS, LTD.
    Inventor: Kazuyuki Koyanagi
  • Patent number: 11537350
    Abstract: An infinitely expandable display apparatus and a driving method thereof are disclosed. An infinitely expandable display apparatus includes a cabinet including a plurality of display units each having an application specific integrated circuit (ASIC) embedded therein, a set board generating a driving command signal needed for driving of the cabinet, and a set interface circuit connecting the set board to the cabinet. The plurality of display units are connected to one another through a unidirectional interface circuit, and at least one of the plurality of display units transfers the driving command signal and an execution result signal based thereon to a neighbor display unit on the basis of a cascading scheme.
    Type: Grant
    Filed: November 10, 2021
    Date of Patent: December 27, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Tae Gung Kim, Dae Hyeon Park, Dae Sung Park
  • Patent number: 11538411
    Abstract: A display device and a method for driving the display device are discussed, which can save costs and implement high luminance by adopting a voltage sensing scheme for accurately sensing characteristic values of the light emitting device in the subpixel for compensation while also increasing the available display area.
    Type: Grant
    Filed: December 1, 2021
    Date of Patent: December 27, 2022
    Assignee: LG DISPLAY CO., LTD.
    Inventors: MooKyoung Hong, KwangMo Park
  • Patent number: 11538419
    Abstract: A display apparatus includes a display panel in which a plurality of pixels and a plurality of data lines and a plurality of sensing lines connected to the pixels are arranged, a first driving circuit connected to data lines and sensing lines arranged in a first pixel column and a second pixel column adjacent to the first pixel column, and a second driving circuit connected to data lines and sensing lines arranged in a third pixel column adjacent to the second pixel column and a fourth pixel column adjacent to the third pixel column.
    Type: Grant
    Filed: June 11, 2021
    Date of Patent: December 27, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyungkeun Park, Jungtaek Kim, Kyunho Kim, Joonsuk Baik, Sekeun Lee, Sangsu Han
  • Patent number: 11538385
    Abstract: A gate driving unit includes: a pull-up node denoising circuit; a pull-down node control circuit; a pull-up node control circuit; and an energy storage circuit. The pull-up node denoising circuit is configured to, under control of a potential of the pull-down node, control coupling or discoupling between the first pull-up node and the input terminal. The pull-down node control circuit is configured to, under control of a control voltage, control the potential of the pull-down node; under control of a potential of the second pull-up node, control coupling or discoupling between the pull-down node and the input terminal. The pull-up node control circuit is configured to, under control of an anti-leakage control voltage, control coupling or discoupling between the first pull-up node and the second pull-up node, and configured to maintain the potential of the second pull-up node. The energy storage circuit is configured to store electric energy.
    Type: Grant
    Filed: June 23, 2021
    Date of Patent: December 27, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhichong Wang, Guangcai Yuan, Fuqiang Li, Jing Feng, Xinglong Luan, Peng Liu
  • Patent number: 11538389
    Abstract: Disclosed is a field-sequential-color display device sequentially driving a plurality of color fields divided from any one frame of a plurality of frames, including: a processor calculating a second field brightness-correction-value of a second color field based on a first field transition-brightness-value transferred from a first color field; and a display unit controlling the second color field based on the second field brightness-correction-value. Correction data is calculated by reflecting a brightness-value transited between color fields in a display to a non-linear brightness-value displayed in the corresponding field to minimize an error caused due to a difference between linear image data and a non-linear brightness-value displayed in the display.
    Type: Grant
    Filed: September 14, 2021
    Date of Patent: December 27, 2022
    Inventor: Min Seok Kim
  • Patent number: 11532673
    Abstract: The present disclosure relates to a display panel, a method of manufacturing a display panel, and a mask plate. A display panel includes a plurality of first light emitting layers configured to emit a light of a first color when excited; a plurality of second light emitting layers configured to emit a light of a second color when excited; and a plurality of third light emitting layers configured to emit a light of a third color when excited, wherein the first and second light emitting layers are alternately arranged in a first direction and a second direction crossing the first direction, and the third light emitting layers are arranged between the first and second light emitting layers, and each of the first and second light emitting layers includes chamfered corners, so that the first and second light emitting layers do not overlap.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: December 20, 2022
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Jianpeng Wu, Fengli Ji, Chang Luo
  • Patent number: 11527203
    Abstract: A pixel circuit, a driving method, and a display device are provided. The pixel circuit includes: a signal input subcircuit, a threshold compensation subcircuit, a light-emitting control subcircuit, a drive transistor, a light-emitting device. The signal input subcircuit writes a voltage at a data signal end, a voltage at a reference voltage signal end, and a threshold voltage of the drive transistor into a gate thereof according to signals of first, second, and third control signal ends. The threshold compensation subcircuit turns on a gate of the drive transistor and a drain thereof under the control of a signal of a reset signal end. The light-emitting control subcircuit turns on a first power supply end and the drive transistor, and turns on the drive transistor and the light-emitting device under the control of a signal of a first light-emitting control end and a signal of a second light-emitting control end.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: December 13, 2022
    Assignee: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventor: Tian Dong
  • Patent number: 11527199
    Abstract: A pixel circuit and a method for driving the pixel circuit, a display panel and an electronic device are provided. The pixel circuit includes a drive circuit, a storage circuit, a discharge control circuit, a storage control circuit, and a data writing circuit. The drive circuit is configured to control a driving current for driving a light-emitting element to emit light; the storage circuit is connected to the control terminal of the drive circuit; the discharge control circuit is configured to control a voltage across the storage circuit and to control the second terminal of the drive circuit to discharge; the storage control circuit is configured to control the storage circuit to store a voltage of the drive circuit; the data writing circuit is configured to write a data voltage into the storage circuit to control the drive circuit.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: December 13, 2022
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventor: Zheng Wang
  • Patent number: 11522111
    Abstract: An optoelectronic device, including: a support; at least one first electrically-conductive layer covering the support; display pixel circuits including first and second opposite surfaces bonded to the first electrically-conductive layer, each display pixel circuit including an electronic circuit including the first surface and a third surface opposite to the first surface, the first surface being bonded to the first electrically-conductive layer, and at least one optoelectronic circuit bonded to the third surface and including at least one light-emitting diode, at least one of the electrodes of the light-emitting diode being connected to the electronic circuit by the third surface; at least one second electrically-conductive layer covering the display pixel circuits and electrically coupled to the electronic circuits of the display pixel circuits on the side of the second surface.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: December 6, 2022
    Assignee: Aledia
    Inventors: Xavier Hugon, Philippe Gilet, Ivan-Christophe Robin, Zine Bouhamri, Frédéric Mercier, Matthieu Charbonnier
  • Patent number: 11517764
    Abstract: A light irradiation device includes a first light source emitting first light in a visible wavelength band and a second light source emitting second light, in which at least part of a wavelength band is different from a wavelength band of the first light source and which catalyzes synthesis of a functional substance in a target to which light is applied. The second light includes light in a wavelength band of ultraviolet B.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: December 6, 2022
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Hee Ho Bae, Yeong Min Yoon, A Young Lee
  • Patent number: 11523102
    Abstract: In example implementations, an apparatus is provided. The apparatus includes a movable light emitting diode (LED) base. A plurality of LED arrays is coupled to the movable LED base. The apparatus includes a grid that includes a plurality of walls. The grid is positioned such that each LED array of the plurality of LED arrays is adjacent to a wall of the plurality of walls.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: December 6, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Kuan-Ting Wu, Wei-Chung Chen, Hsing-Hung Hsieh
  • Patent number: 11516458
    Abstract: The present disclosure provides a device for stereoscopic displaying and a method for controlling the same. The device for stereoscopic displaying comprises: a rotary shaft and at least one display assembly. The display assembly is fixed to the rotary shaft, the display assembly comprises at least three display surfaces, and at least one of the display surfaces is arranged opposite to the rotary shaft in a radial direction of the rotary shaft.
    Type: Grant
    Filed: July 23, 2020
    Date of Patent: November 29, 2022
    Assignees: Beijing BOE Optoelectronics Technology Co., Ltd., Beijing BOE Technology Development Co., Ltd.
    Inventors: Binhua Sun, Ziqiang Guo, Yakun Wang, Jiyang Shao, Feng Zi, Lin Lin, Yadong Ding, Bingxin Liu
  • Patent number: 11515385
    Abstract: A display panel includes a first panel region (FPR) including (n?1)-th and n-th pixel rows ((n?1)PR and nPR), and a second panel region (SPR) dividing the nPR to propagate an optical signal. The display panel includes a circuit element layer (CEL) and a display element layer (DEL). The CEL includes a signal line (SL), a pixel driving circuit (PDC), and first to third regions. The SL and the PDC are in the first region. The second region (SR) corresponds to the SPR. The SL and the PDC are not in the SR. The third region (TR) corresponds to the SPR and is along a periphery of the SR. The SL is in the TR, and includes an (n?1)-th scan line ((n?1)SL) connected to the (n?1)PR, an n-th reset line (nRL) connected to the nPR, and a first row connection line in the TR and connecting the (n?1)SL and the nRL.
    Type: Grant
    Filed: September 2, 2021
    Date of Patent: November 29, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyunae Park, Jaewon Kim, Seungwoo Sung, Jun-yong An, Nuree Um, Ji-eun Lee, Yun-kyeong In, Donghyeon Jang, Seunghan Jo, Junyoung Jo
  • Patent number: 11508795
    Abstract: A display device includes a display panel having a general area including first subpixels, and a sensor area including second subpixels and light-transmitting area. Each of the first subpixels and the second subpixels includes a first active layer disposed on a substrate and formed of a first material, a first gate layer disposed on the first active layer, a second gate layer disposed on the first gate layer, a second active layer disposed on the second gate layer and formed of a second material different from the first material, a third gate layer disposed on the second active layer, and a light-blocking layer disposed between the substrate and the first active layer and overlapping the second active layer in a thickness direction.
    Type: Grant
    Filed: December 31, 2020
    Date of Patent: November 22, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jun Hyun Park, Hyeong Seok Kim, Young Wan Seo, Yu Jin Lee, Cheol Gon Lee
  • Patent number: 11508321
    Abstract: An electro-optical device is provided with a plurality of data lines, a plurality of potential lines supplied with a predetermined potential, a driving transistor controlling a current level according to the voltage between the gate and the source, a first storage capacitor which holds the voltage between the gate and a source of the driving transistor, and a light-emitting element. One data line among the plurality of data lines and one potential line among the plurality of potential lines are arranged to be adjacent to each other, and a second storage capacitor holding the potential of the one data line is formed by the one data line and the one potential line.
    Type: Grant
    Filed: May 24, 2022
    Date of Patent: November 22, 2022
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Toshiyuki Kasai, Takeshi Nomura
  • Patent number: 11508300
    Abstract: A display device includes: pixels arranged in a matrix; a plurality of write signal lines for selecting a pixel row to which a data voltage is to be written; a gate driver that supplies a gate signal; a plurality of data signal lines for writing the data voltage; a data driver that supplies the data voltage; a data selector circuit that supplies, per at least one data signal line by time division, the data voltage; and a controller. Each of the pixels includes a light-emitting element, a capacitor element, and a drive transistor that supplies a current in accordance with the voltage held by the capacitor element to the light-emitting element. The controller causes the gate driver and the data driver to perform an initialization operation on pixels in a second pixel row after a period during which a write operation is performed on pixels in a first pixel row.
    Type: Grant
    Filed: August 25, 2020
    Date of Patent: November 22, 2022
    Assignee: JOLED INC.
    Inventor: Shigeo Homura
  • Patent number: 11508797
    Abstract: A display device includes: a resin substrate; a TFT layer; a bending portion; at least one inorganic film forming the TFT layer; an interlayer insulating film forming the TFT layer; and a plurality of wires forming the TFT layer, wherein the at least one inorganic film and the interlayer insulating film include an opening disposed at the bending portion, the at least one inorganic film includes a plurality of island-shaped inorganic films remaining in the opening, each of the plurality of wires overlaps a corresponding island-shaped inorganic film among the plurality of island-shaped inorganic films, and the display device includes a metal layer in a form of islands disposed between each of the plurality of wires and the corresponding island-shaped inorganic film overlapping each of the plurality of wires, the metal layer being in contact with each of the plurality of wires.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: November 22, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masaki Yamanaka, Masahiko Miwa, Yohsuke Kanzaki, Takao Saitoh, Yi Sun, Seiji Kaneko
  • Patent number: 11510298
    Abstract: A smart lamp system and method for monitoring a status of light-emitting diodes (LEDs). The system can provide LED status monitoring using a logic controller communicating with at least one strip of LEDs. The system can utilize the logic controller to assign a unique identifier (ID) to the at least one strip of LEDs based on a physical position of a plurality of dual-inline package (DIP) switches incorporated within a smart lamp housing. The system can provide a hardware architecture to interface the logic controller with a power-line communication (PLC) transceiver. The system can establish a communication protocol between the PLC transceiver and a PLC receiver to efficiently communicate the statuses of the LEDs. The logic controller can generate a payload including a binary representation of the unique ID of the smart lamp and the statuses of the LEDs and transmit the payload to the PLC transceiver.
    Type: Grant
    Filed: February 24, 2022
    Date of Patent: November 22, 2022
    Assignee: BNSF Railway Company
    Inventor: Ross Martin Sterling
  • Patent number: 11508763
    Abstract: The present disclosure provides a method for manufacturing an array substrate, an array substrate, and a display device. By first forming holes in a first thin film transistor, then simultaneously performing hydrogen supplementation on the first thin film transistor and a second thin film transistor, and then forming holes in the second thin film transistor, the first thin film transistor and the second thin film transistor can be repaired and compensated in different degrees by hydrogen supplementation.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: November 22, 2022
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Beijing BOE Technology Development Co., Ltd.
    Inventors: Taoran Zhang, Jiawei Qu, Linxuan Li, Wenjun Liao, Zailong Mo
  • Patent number: 11501712
    Abstract: There are provided a display device and a driving method of the display device. The display device includes a display panel including a plurality of pixels, and a controller configured to determine an off ratio corresponding to an initialization driving power voltage of the display panel, and configured to control emission of the plurality of pixels corresponding to the determined off ratio, wherein different initialization driving power voltages are determined based on luminances and chromaticities of a plurality of display panels.
    Type: Grant
    Filed: November 11, 2019
    Date of Patent: November 15, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Eun Ju Kim, Ji Hyun Ka
  • Patent number: 11501708
    Abstract: Provided are a pixel driving circuit, a driving method and a display panel. The pixel driving circuit includes a driving transistor, a storage sub-circuit, a data writing sub-circuit, an initialization sub-circuit, a first light-emission control sub-circuit, a second light-emission control sub-circuit and a light-emitting element. The data writing sub-circuit is configured to write a data signal to a first electrode of the driving transistor in response to a second scan signal. The storage sub-circuit is configured to store the data signal written by the data writing sub-circuit. The initialization sub-circuit is configured to apply a reset voltage of an initial voltage terminal to the light-emitting element in response to a first scan signal. The first light-emission control sub-circuit is configured to apply a voltage of a first power terminal to the first electrode of the driving transistor in response to a first light-emission signal.
    Type: Grant
    Filed: June 23, 2021
    Date of Patent: November 15, 2022
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yao Huang, Yue Long, Weiyun Huang, Benlian Wang
  • Patent number: 11501703
    Abstract: Provided are a data current generation circuit, a driving method therefor, a driver chip, and a display panel, where a threshold capture module of the data current generation circuit is connected between a gate and a second electrode of a first transistor and is configured to capture a threshold voltage of the first transistor, a data voltage generation module is configured to generate a data voltage, a data voltage transmission module is connected between the data voltage generation module and a threshold voltage acquisition and superposition module and is configured to transmit the data voltage generated by the data voltage generation module to the threshold voltage acquisition and superposition module when the data voltage transmission module is turned on, and the threshold voltage acquisition and superposition module is configured to acquire the threshold voltage of the first transistor.
    Type: Grant
    Filed: August 5, 2021
    Date of Patent: November 15, 2022
    Assignee: SEEYA OPTRONICS CO., LTD.
    Inventors: Ping-Lin Liu, Haodong Zhang
  • Patent number: 11501697
    Abstract: A pixel circuit and a display device are provided. The pixel circuit is utilized for driving a light emitting diode. The pixel circuit includes a storage capacitor, a selector, a memory device, and a write switch. The storage capacitor is coupled to the light emitting diode. The selector selects a first signal or a second signal to the storage capacitor according to a stored data. The memory device is coupled to the selector. The memory device stores a written data to obtain the stored data. The write switch is coupled to the memory device. The write switch writes in the written data to the memory device while the pixel circuit is in transition of operation modes.
    Type: Grant
    Filed: May 19, 2021
    Date of Patent: November 15, 2022
    Assignee: Au Optronics Corporation
    Inventors: Wei-Chien Liao, Meng-Chieh Tsai
  • Patent number: 11501706
    Abstract: A display panel and a display apparatus, in which a particular color is prevented from being emphasized and displayed in a display area even when the display panel passes testing. The display panel includes: a substrate including a first area and a second area in which first connection nodes and second connection nodes are arranged, the first and second areas being separate from each other; first data lines on the first area; second data lines on the second area and respectively connected to second connection nodes; first connection lines respectively connecting the first data lines to the first connection nodes; a first voltage line; first transistors respectively connected between the first connection nodes and the first voltage line; second transistors respectively connected between the second connection nodes and the first voltage line; and a first gate line connected to gates of the first transistors and gates of the second transistors.
    Type: Grant
    Filed: September 8, 2021
    Date of Patent: November 15, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Nackhyeon Keum, Jihyun Ka
  • Patent number: 11488537
    Abstract: A display device includes first dots connected to first scan lines, second dots connected to second scan lines and alternately disposed with the first dots in a first direction and a second direction different from the first direction, a scan driver including first stages respectively connected to the first scan lines and second stages respectively connected to the second scan lines, and a data driver connected to the first dots and the second dots through data lines. The first stages are connected to first clock lines, the second stages are connected to second clock lines, first stages except a first start stage are respectively connected to corresponding first scan lines of corresponding previous first stages, and second stages except a second start stage are respectively connected to corresponding second scan lines of corresponding previous second stages.
    Type: Grant
    Filed: February 23, 2021
    Date of Patent: November 1, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Se Hyuk Park, Hong Soo Kim, Jin Young Roh, Bong Hyun You, Hyo Jin Lee, Jae Keun Lim
  • Patent number: 11488504
    Abstract: A driving circuit includes a gamma chip configured to provide a plurality of initial binding point voltages; the gamma chip including a first type of output terminals and a second type of output terminals, currents corresponding to the initial binding point voltages outputted by the first type of output terminals being less than a preset driving current; and currents corresponding to the initial binding point voltages outputted by the second type of output terminals being greater than the preset driving current; and a data driving chip including a processor and a plurality of operational amplifiers.
    Type: Grant
    Filed: May 6, 2020
    Date of Patent: November 1, 2022
    Assignees: Chongqing HKC Optoelectronics Technology Co., Ltd., HKC Corporation Limited
    Inventor: Li Tang
  • Patent number: 11488539
    Abstract: A display device can include a display panel including a plurality of data lines, a plurality of scan lines, a plurality of light emission control lines, and a plurality of sub-pixels; a first driving circuit configured to drive the plurality of data lines; a second driving circuit configured to drive the plurality of scan lines; and a third driving circuit configured to drive the plurality of light emission control lines, in which the display panel includes an active area in which an image is displayed and a non-active area which is an edge area of the active area.
    Type: Grant
    Filed: April 30, 2021
    Date of Patent: November 1, 2022
    Assignee: LG DISPLAY CO., LTD.
    Inventors: JaeHoon Park, SeonYeong Kim
  • Patent number: 11489020
    Abstract: An optical sensor device, a method for fabricating the same, and a display device are disclosed. The optical sensor device includes a display region and a non-display region. In the display non-display region, the optical sensor device includes a thin film transistor, including an active layer, a gate insulating layer, a gate layer, a source and drain layer, and an interlayer dielectric layer. In the non-display display region, the optical sensor device includes a first insulating layer, a conductive layer and a second insulating layer which are stacked sequentially. The conductive layer is arranged in a same layer as the source and drain layer or the gate layer. In the non-display display region, the first insulating layer is provided with a first through-hole, and the optical sensor device further includes a photo-sensitive device in the first through-hole.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: November 1, 2022
    Assignee: Beijing BOE Technology Development Co., Ltd.
    Inventors: Guoying Wang, Zhen Song
  • Patent number: 11488506
    Abstract: A display device includes a display panel in which a first display region and a second display region adjacent to the first display region are defined. The display panel includes main pixels disposed in the first display region, first sub-pixels disposed in a first sub-region of the second display region, and second sub-pixels disposed in a second sub-region of the second display region and which have a different pixel structure from the main pixels.
    Type: Grant
    Filed: March 26, 2021
    Date of Patent: November 1, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hwi Kim, Jeongkuk Kim, Kyu Hwan Hwang
  • Patent number: 11488522
    Abstract: A display substrate and a method for driving the display substrate are provided in the present disclosure. The display substrate includes a plurality of pixel units arranged in an array and a power supply signal structure configured to apply a power supply voltage signal to each pixel unit. The power supply signal structure includes: a plurality of driving voltage signal VDD lines, a first power supply voltage signal VDD1 line connected to a first end of each driving voltage signal VDD line, and configured to apply a first power supply voltage V1 to the first end of the driving voltage signal line, and a second power supply voltage signal VDD2 line connected to a second end of the driving voltage signal VDD line, and configured to apply a power supply voltage V2 to the second end of the driving voltage signal VDD line.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: November 1, 2022
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., Beijing BOE Technology Development Co., Ltd.
    Inventors: Yonglin Guo, Yidan Zhu, Tingliang Liu, Yiran Li, Xinyu Wei, Kai Zhang
  • Patent number: 11482180
    Abstract: Disclosed are a device and method for measuring an organic light emitting diode, which measures an amount of energy for compensating for a burn-in of an organic light emitting diode, by sensing a charged voltage of a sensing line connected to the organic light emitting diode. The device for measuring an organic light emitting diode includes an external current source, and is configured to measure an amount of energy for compensating for a burn-in, by sensing a charged voltage of a parasitic capacitor of a sensing line.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: October 25, 2022
    Assignee: Silicon Works Co., Ltd.
    Inventors: Kyung Jik Min, Jeong Hoon Choi, Dong Ju Kim, Jung Bae Yun
  • Patent number: 11482174
    Abstract: An embodiment provides a display device including: a light emitting diode; a driving transistor configured to supply a current to the light emitting diode; a switching transistor having an input electrode connected to a data line; and a voltage transmitting capacitor disposed between an output electrode of the switching transistor and a gate electrode of the driving transistor, wherein a data voltage applied to the data line may be transmitted to the gate electrode of the driving transistor through the voltage transmitting capacitor, and the data voltage may have a data voltage value from which a voltage variation variable is removed based on leakage of the switching transistor.
    Type: Grant
    Filed: June 16, 2020
    Date of Patent: October 25, 2022
    Inventors: Yu-Chol Kim, Jin-Wook Yang, Ji Hye Kim, Young Ha Sohn, Jae-Hyeon Jeon