Solid Body Light Emitter (e.g., Led) Patents (Class 345/82)
  • Patent number: 11476450
    Abstract: A electroluminescence display device includes a pixel including a selection transistor, a driving transistor, and an EL element, a scanning signal line electrically connected with a gate of the selection transistor, a data signal line electrically connected with a source of the selection transistor, and a carrier injection amount control signal line applying a voltage to the EL element. The EL element includes a first electrode, a third electrode, a first insulating layer between the first electrode and the third electrode, an electron transfer layer between the first insulating layer and the third electrode, a light emitting layer containing an electroluminescence material between the electron transfer layer and the third electrode, and a second electrode located outer to a region where the first electrode, the first insulating layer, the electron transfer layer and the third electrode overlap each other, the second electrode being in contact with the electron transfer layer.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: October 18, 2022
    Assignee: MIKUNI ELECTRON CORPORATION
    Inventor: Sakae Tanaka
  • Patent number: 11477865
    Abstract: An illumination device for illuminating an animal housing device, having a plurality of light sources, with a first light source and a second light source, wherein the first light source and the second light source are designed to emit light with wavelengths or colors differing from one another such as red and white, and a luminaire that includes a logic module. The logic module is designed to read out a frequency of a signal of an electrical energy, to compare the frequency of the signal with data stored in the logic module, and in dependence upon the comparison between the frequency of the signal and the data stored in the logic module to determine one or more channels encoded in the frequency. Furthermore, the invention relates to a control device, a method for controlling a lighting device, and a use of a illumination device.
    Type: Grant
    Filed: July 8, 2021
    Date of Patent: October 18, 2022
    Assignee: BIG DUTCHMAN INTERNATIONAL GMBH
    Inventor: Nils Neugebauer
  • Patent number: 11468827
    Abstract: A circuit device includes a scan line drive circuit that drives a plurality of scan lines of an electro-optical element, and an enable line drive circuit that outputs an enable signal to a plurality of pixel circuits. A field for constituting one image includes a plurality of subfields. The enable line drive circuit outputs an enable signal that is active in a partial period of a first display period corresponding to a first bit, which is a lower bit of display data. When the enable signal is active in a partial period of the first display period, a pixel is ON-state or OFF-state.
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: October 11, 2022
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Yoichi Momose, Mitsutoshi Miyasaka
  • Patent number: 11468842
    Abstract: A pixel circuit for a display device minimizes the one horizontal time while maintaining accurate compensation of the threshold voltage of the drive transistor, by extending the compensation phase beyond the data programming phase. The pixel circuit includes a drive transistor configured to control an amount of current to a light-emitting device during an emission phase and a storage capacitor connected between the gate of the drive transistor and the light-emitting device for compensating a threshold voltage of the drive transistor. During a combined data programming and threshold compensation phase, data is programmed and the threshold voltage of the drive transistor is partially compensated, with the data voltage being stored by the internal capacitance of the light-emitting device. The data voltage remains stored during an extended compensation phase in which the drive transistor is further compensated.
    Type: Grant
    Filed: January 21, 2021
    Date of Patent: October 11, 2022
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Adnan Heganovic
  • Patent number: 11461888
    Abstract: The disclosure provides a method and an image processor for computing decay factors for display degradation compensation. The method includes the following steps. A sequence of frames including a current frame are received. Whether the current frame is a dynamic frame or a static frame is determined. When the current frame is the dynamic frame, accumulation on decay factors is performed. When the current frame is the static frame, accumulation on the decay factors is not performed.
    Type: Grant
    Filed: July 20, 2020
    Date of Patent: October 4, 2022
    Assignee: Novatek Microelectronics Corp.
    Inventors: Li-Chieh Chen, Yen-Tao Liao
  • Patent number: 11455708
    Abstract: A tone mapping apparatus includes a dynamic tone mapping module configured to generate a first tone mapping curve based on a luminance distribution histogram of input image data and generate first image data from the input image data using the first tone mapping curve, and a processor configured to generate an RGB distribution histogram, a detail region histogram and a high-luminance region histogram based on pixel information of the first image data, generate a second tone mapping curve using the RGB distribution histogram, the detail region histogram and the high-luminance region histogram and generate output image data from the first image data using the second tone mapping curve.
    Type: Grant
    Filed: March 8, 2021
    Date of Patent: September 27, 2022
    Assignee: LG ELECTRONICS INC.
    Inventors: Hyomin Kim, Yeonoh Nam
  • Patent number: 11455953
    Abstract: A display device includes pixel driving circuits. A first pixel driving circuit includes a light emitting element, first and second driving units and a control unit. The light emitting element emits light according to a current. The first driving unit generates the current. The second driving unit drives the first driving unit to adjust the current according to a first scanning signal. The control unit controls the first driving unit to adjust the current according to a first light emitting signal. The first scanning signal has first slope to third slopes during first to third periods, respectively. The first to third slopes are different from each other. The first light emitting signal has an enable voltage level during the first and third periods, and has a disable voltage level during the second period. The first to third periods are arranged continuously in order.
    Type: Grant
    Filed: October 29, 2021
    Date of Patent: September 27, 2022
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Peng-Bo Xi, Chen-Chi Lin
  • Patent number: 11448807
    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: May 14, 2019
    Date of Patent: September 20, 2022
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., Beijing BOE Technology Development Co., Ltd.
    Inventors: Fengli Ji, Chang Luo, Jianpeng Wu, Lujiang Huangfu
  • Patent number: 11450723
    Abstract: The present disclosure provides a wire layout of a pixel driving circuit. The circuit includes: a first switching element, a control terminal of the first switching element being coupled to a scan signal line, a first terminal of the first switching element being coupled to a data signal line; and a driving transistor, a first terminal of the driving transistor being coupled to a power signal line; wherein a first distance between the data signal line and the control terminal of the driving transistor is greater than a second distance between the first power signal line and the control terminal of the driving transistor.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: September 20, 2022
    Assignee: Beijing BOE Technology Development Co., Ltd.
    Inventors: Yipeng Chen, Libin Liu, Yunfei Li
  • Patent number: 11443701
    Abstract: A screen state control method, device, and a mobile terminal are provided. The method includes: in a bright environment, a ratio of a characteristic curve of a proximity sensor to an ideal curve of the proximity sensor in each of a number of intervals is determined; a first intensity value of a receiving end signal is obtained, a second intensity value of a receiving end signal is turned off is obtained, the first intensity value and the second intensity value respectively according to the ratios are compensated; and a corrected proximity value of the proximity sensor according to a compensated first intensity value and a compensated second intensity value is determined, and the screen, according to a comparison result between the corrected proximity value and a preset threshold, is controlled to be selectively in a screen on state or a screen off state.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: September 13, 2022
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventor: Yibao Zhou
  • Patent number: 11444269
    Abstract: A electroluminescence display device includes a pixel including a selection transistor, a driving transistor, and an EL element, a scanning signal line electrically connected with a gate of the selection transistor, a data signal line electrically connected with a source of the selection transistor, and a carrier injection amount control signal line applying a voltage to the EL element. The EL element includes a first electrode, a third electrode, a first insulating layer between the first electrode and the third electrode, an electron transfer layer between the first insulating layer and the third electrode, a light emitting layer containing an electroluminescence material between the electron transfer layer and the third electrode, and a second electrode located outer to a region where the first electrode, the first insulating layer, the electron transfer layer and the third electrode overlap each other, the second electrode being in contact with the electron transfer layer.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: September 13, 2022
    Assignee: MIKUNI ELECTRON CORPORATION
    Inventor: Sakae Tanaka
  • Patent number: 11436977
    Abstract: A pixel driving circuit, a method of driving thereof, and a display panel are provided. The pixel driving circuit includes a driving transistor and a compensation module, which at least includes different types of initialization transistors and compensation transistors. The compensation transistor transmits a data signal with a compensation threshold voltage to the gate of the driving transistor. The initialization transistor transmits the variable potential signal to the gate of the driving transistor to dynamically compensate the gate voltage of the driving transistor during the light-emitting phase, thereby improving the display effect.
    Type: Grant
    Filed: August 17, 2020
    Date of Patent: September 6, 2022
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Shuyuan Zhang, Sunghwan Cho, Chao Dai
  • Patent number: 11436957
    Abstract: An abnormality detection circuit includes: a plurality of voltage dividing circuits; a first selector configured to select and output one of a plurality of outputs of the plurality of voltage dividing circuits; a first comparator configured to compare an output of the first selector with a reference voltage; and a first detector configured to detect an abnormality based on an output of the first comparator, wherein the selection of the first selector is switched in synchronization with a vertical synchronization signal or a horizontal synchronization signal of a liquid crystal display device.
    Type: Grant
    Filed: July 8, 2021
    Date of Patent: September 6, 2022
    Assignee: Rohm Co., Ltd.
    Inventors: Akira Hashimoto, Takateru Yamamoto, Sukenori Ito, Yasunobu Inoue
  • Patent number: 11430390
    Abstract: A display device includes a scan write line for receiving a scan write signal, a first driving voltage line for receiving a first driving voltage, a first data line for receiving first data voltages, a second data line for receiving second data voltages, and a sub-pixel connected to the scan write line, the first data line, the second data line, and the first driving voltage line, wherein the sub-pixel includes a light emitting element connected to the first driving voltage line, a constant current generator configured to apply a driving current to the light emitting element according to a first data voltage among the first data voltages of the first data line, and a light emission period controller configured to control a light emission period of the light emitting element according to a second data voltage among the second data voltages of the second data line.
    Type: Grant
    Filed: May 6, 2021
    Date of Patent: August 30, 2022
    Assignees: Samsung Display Co., Ltd., Konkuk University Industrial Cooperation Corp
    Inventors: Min Jae Jeong, Joon Ho Lee, Kee Chan Park, Kyung Hoon Chung, Chong Chul Chai
  • Patent number: 11430394
    Abstract: A display device includes a sensing circuit and a controller which selects a pixel row in a frame period. A vertical blank period of the frame period includes a sensing time in which the sensing circuit performs a sensing operation for the selected pixel row. The sensing circuit measures a first source voltage of a driving transistor of a pixel in the selected pixel row at a first time point of the sensing time, and measures a second source voltage of the driving transistor at a second time point of the sensing time. The controller calculates a threshold voltage parameter and a mobility parameter based on the first and second source voltages, predicts a saturated source voltage of the driving transistor based on the threshold voltage parameter and the mobility parameter, and calculates a threshold voltage of the driving transistor based on the saturated source voltage.
    Type: Grant
    Filed: June 14, 2021
    Date of Patent: August 30, 2022
    Assignees: SAMSUNG DISPLAY CO., LTD., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Jeonkyoo Kim, Soo Yeon Lee, Manseung Cho, Kyeong Soo Kang, Junhee Moon, Bonghyun You, Jin Kyu Lee
  • Patent number: 11423812
    Abstract: In some examples, a pixel comprises a plurality of subpixels, wherein each subpixel includes a micro-motor, a rotatable substrate in which the micro-motor is embedded, and a plurality of micro-light emitting diodes (LEDs) embedded in the rotatable substrate.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: August 23, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Kuan-Ting Wu, Wei-Chung Chen, Cheng-Hua Yu
  • Patent number: 11409163
    Abstract: An LED panel has an interleaved topology in which two adjacent LED rows in the LED panel are driven by different drivers. A delay time can be implemented between starting times two adjacent LED rows. Such an LCD panel can be employed to backlight an LCD panel in an LCD display. Implementing a delay time in driving the LED panel can reduce visual artifacts in the LCD display.
    Type: Grant
    Filed: August 10, 2021
    Date of Patent: August 9, 2022
    Assignee: SCT LTD.
    Inventors: Eric Li, Jim Wickenhiser, Shang-Kuan Tang, Sheanyih Chiou, Yi Zhang, Brandon Li
  • Patent number: 11410595
    Abstract: According to one embodiment, a display device includes a display area and a driver. Each of pixels includes a light emitting element and a drive transistor connected in series. An image signal includes a first luminance data and a second luminance data. The first luminance data is based on an average value of a gradation value of pixels, and is common among the pixels included in said one area. The second luminance data is, based on a difference between the gradation value and the average value, an independent luminance data of each of the pixels. The driver controls a common luminance time of the pixels based on the first luminance data, and controls a current value to be supplied to the luminance element of each of the pixels based on the second luminance data.
    Type: Grant
    Filed: December 2, 2020
    Date of Patent: August 9, 2022
    Assignee: Japan Display Inc.
    Inventors: Tetsuo Morita, Yasuhiro Ogawa
  • Patent number: 11411061
    Abstract: A display device includes signal lines and pixels connected thereto. A first pixel includes a first transistor including a first gate electrode, a first channel region overlapping the first gate electrode, a first source region, and a second drain region facing the first source region, with the first channel region interposed between the first source region and the second drain region. A third transistor includes a third gate electrode, a third channel region overlapping the third gate electrode, a third drain region connected to the first gate electrode, and a third source region facing the third drain region with the third channel region interposed between the third source region and the third drain region. A shielding part overlaps a boundary between the third source region and the third channel region and does not overlap a boundary between the third drain region and the third channel region.
    Type: Grant
    Filed: May 18, 2020
    Date of Patent: August 9, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jun Won Choi, Dong Soo Kim, Hyun-Chol Bang, Chang Soo Pyon, Ji-Eun Lee
  • Patent number: 11404509
    Abstract: The present application discloses a display panel and a display apparatus. The display panel includes a plurality of pixels. Each of the pixels at least includes a first sub pixel, a second sub pixel and a third sub pixel corresponding to blue. The first sub pixel includes a first active switch. The second sub pixel includes a second active switch. The third sub pixel includes a third active switch. The opening rates of the first sub pixel and the second sub pixel are less than the opening rate of the third sub pixel. The channel ratios of the first active switch and the second active switch are greater than the channel ratio of the third active switch.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: August 2, 2022
    Assignees: HKC CORPORATION LIMITED, CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Chuan Wu
  • Patent number: 11403929
    Abstract: An improved system and method for detecting smoke using a sensor is disclosed. The method can comprise the steps of storing in memory a plurality of smoke signatures, wherein each of the smoke signatures relates to how the sensor senses one of a plurality of particulates, each of the plurality of particulates indicative or non-indicative of a fire, and receiving current data from the sensor. Moreover, the method can comprise the steps of comparing the current data with the plurality of smoke signatures to determine if the current data matches any of the plurality of smoke signatures, and initiating an alarm sequence based at least in part on a determination as to whether the current data matches a smoke signature related to a fire-indicative particulate of the plurality of particulates.
    Type: Grant
    Filed: February 13, 2021
    Date of Patent: August 2, 2022
    Assignee: 4Morr Enterprises IP, LLC
    Inventors: Michael Dean Orr, Eric Overton
  • Patent number: 11398542
    Abstract: In a step of forming a plurality of control lines composed of a first metal layer a first metal layer branch line is formed. In a step of forming a plurality of power source lines composed of a second metal layer a second metal layer connecting portion is formed that connects each power source line with the first metal layer branch line via an opening of a first insulating film. In a step of forming a plurality of data signal lines composed of a third metal layer that is formed on a second insulating film the first metal layer branch line formed in the opening of the first insulating and the second metal layer connecting portion formed in an opening of the second insulating film are etched.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: July 26, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tohru Okabe, Shinsuke Saida, Shinji Ichikawa, Hiroki Taniyama, Ryosuke Gunji, Kohji Ariga, Yoshihiro Nakada, Koji Tanimura, Yoshihiro Kohara, Hiroharu Jinmura, Akira Inoue
  • Patent number: 11386621
    Abstract: A food storage system is disclosed. The can system comprises an appliance having a cabinet defining an interior, the interior comprising at least one of a shelf, compartment, or drawer configured to store at least one food item, a vision system comprising at least one imager configured to record image data related to the at least one food item stored within the interior, and a controller in communication with the vision system. The controller can be operable to generate an augmented reality representation of the interior.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: July 12, 2022
    Assignee: Whirlpool Corporation
    Inventors: Joshua George Abdoo, Matthew P. Ebrom, Neomar Giacomini, Donald J. Gilmore, Brian N. Radford, Aaron Edward Showers, Collin Andrew Stipe
  • Patent number: 11386842
    Abstract: A display apparatus includes a plurality of pixels configured to display an image, wherein the plurality of pixels is configured to be driven through a plurality of signals according to an initialization period, a programming period, a sampling period, and an emission period. The signals include a first scan signal having a high level in the initialization period and the sampling period, and having a low level in the programming period and the emission period; a second scan signal having a high level in the programming period and the sampling period, and having a low level in the initialization period and the emission period; and a voltage of a first electrode being dropped in synchronization with a falling time of the first scan signal of the initialization period.
    Type: Grant
    Filed: March 8, 2021
    Date of Patent: July 12, 2022
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Seyong Lee, Sanghun Yoon, YeaJin Hwang
  • Patent number: 11386835
    Abstract: In a display with subpixel LEDs, each pixel includes two subpixel LEDs controlled via a shared control circuit and switching element. Switching element logic allows one set of brightness control transistors to alternatively control two subpixels. The driving and control elements of a display backplane are organized into pixels units of four driving elements and three control elements. Each pixel may comprise two green subpixels controlled via the switching element. Alternatively, each pixel may comprise a white subpixel that only illuminates when the colored pixels are off; the green and white subpixels are controlled via the switching element.
    Type: Grant
    Filed: March 23, 2021
    Date of Patent: July 12, 2022
    Assignee: Rockwell Collins, Inc.
    Inventors: Donald E. Mosier, Michael A. Ropers, Jana Wills
  • Patent number: 11380260
    Abstract: An electronic device comprises a controller. The controller is configured to provide a first signal to a display of the electronic device to turn off the display. The controller is also configured to provide a second signal to the display to alter a gate source voltage of a drive transistor coupled to a light emitting diode (LED) of a pixel of the display while the display is turned off.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: July 5, 2022
    Assignee: Apple Inc.
    Inventors: Junhua Tan, Kingsuk Brahma, Jie Won Ryu, Shengkui Gao, Shiping Shen, Majid Gharghi, Hyunwoo Nho, Injae Hwang, Kavinaath Murugan, Sun-Il Chang, Chin-Wei Lin, Hyunsoo Kim, Rui Zhang, Jesse Aaron Richmond, Yun Wang, Hung Sheng Lin
  • Patent number: 11367162
    Abstract: An electro-optical device includes a pixel circuit 41G, a pixel circuit 41B, a high potential line 47G configured to supply a high potential VDDG to the pixel circuit 41G, a high potential line 47B configured to supply a high potential VDDB to the pixel circuit 41B, and a low potential line 46 configured to supply a first low potential VSS1 to the pixel circuit 41G and the pixel circuit 41B. The pixel circuit 41G includes a light-emitting element 20G configured to display G, the pixel circuit 41B includes a light-emitting element 20B configured to display B, and the high potential VDDG and the high potential VDDB are mutually independent.
    Type: Grant
    Filed: January 28, 2021
    Date of Patent: June 21, 2022
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Mitsutoshi Miyasaka, Yoichi Momose, Kiyoshi Sekijima
  • Patent number: 11367393
    Abstract: Provided are a display panel, a driving method thereof and a display device. The display panel includes a substrate, multiple sub-pixels located on one side of the substrate, and at least one signal conversion circuit. Each sub-pixel includes a pixel driving circuit and a light-emitting element. The pixel driving circuit includes an initialization transistor and a driving transistor. A first electrode of the initialization transistor is electrically connected to a gate of the driving transistor. The signal conversion circuit may convert a received initialization signal to a first initialization signal or convert the initialization signal to a second initialization signal according to a received data control signal, and generate an output of the conversion to the second electrode of the initialization transistor. This can avoid an unstable gate voltage of the driving transistor caused by a leakage current, further improve the display effect.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: June 21, 2022
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Gao Yana, Xinzhao Liu, Yue Li, Xingyao Zhou, Minfu Zhang
  • Patent number: 11358379
    Abstract: The disclosure provides a method for forming an information carrying card or a core layer of an information carrying card using a radiation curing, and an apparatus configured to provide such a radiation curing. The method includes providing a carrier layer that defines at least one cavity, providing an inlay layer supporting at least one electronic component, and positioning at least a portion of the inlay layer in the at least one cavity. The method further comprises dispensing a radiation crosslinkable polymer composition over the inlay layer, and irradiating the radiation crosslinkable polymer composition.
    Type: Grant
    Filed: June 29, 2021
    Date of Patent: June 14, 2022
    Assignee: X-Card Holdings, LLC
    Inventor: Mark A. Cox
  • Patent number: 11354928
    Abstract: A photoelectric detection circuit, a photoelectric detection method, an array substrate, a display panel, and a fingerprint image acquisition method are provided. The photoelectric detection circuit includes a pixel circuit and a phototransistor. The pixel circuit includes an infrared light-emitting element and is configured to emit infrared light according to a scanning signal and a light-emitting data signal. The phototransistor is configured to detect the infrared light emitted by the pixel circuit and reflected by a detection object in response to a sampling control signal.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: June 7, 2022
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Guoqiang Tang, Yang Wang, Yingsong Xu
  • Patent number: 11355072
    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: September 18, 2020
    Date of Patent: June 7, 2022
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Toshiyuki Kasai, Takeshi Nomura
  • Patent number: 11348979
    Abstract: A display device may include a display panel and an input sensor. Mesh lines of the input sensor may include first mesh lines extending in a first direction and second mesh lines extending in a second direction crossing the first direction. The first mesh lines and the second mesh lines may cross each other at a plurality of cross points. In a unit region of the sensing electrode, first cutting points may be defined in the first mesh lines and the second mesh lines, and second cutting points may be defined in the first mesh lines and the second mesh lines.
    Type: Grant
    Filed: February 16, 2020
    Date of Patent: May 31, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Joong-Soo Moon, Kwang-Min Kim, Yangwan Kim, Keunsoo Lee, Youngjin Cho
  • Patent number: 11346511
    Abstract: Each of a plurality of lighting nodes in a linear array is connected at different respective positions along a flexible, rigid or malleable continuous supporting line. One or more attachable dividers are provided, configured to be mechanically attachable by a user onto the line without severing the line, or at least without completely severing the line, each between a respective neighbouring pair of the lighting nodes. Each of the attachable dividers is configured so as, when attached to the line, to enable detection of a position at which the divider is connected along the line relative to the lighting nodes, and configured to provide information related to said position to the controller, thus dividing the lighting nodes into different segments along the line. A controller is configured to apply a different lighting effect to the illumination emitted by the lighting nodes in each of some or all of the different segments.
    Type: Grant
    Filed: March 11, 2020
    Date of Patent: May 31, 2022
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Philips Steven Newton, Bartel Marinus Van De Sluis, Dzmitry Viktorovich Aliakseyeu, Jochen Renaat Van Gheluwe
  • Patent number: 11348517
    Abstract: The present disclosure relates to the field of display technology, and more particularly, to a pixel circuit, a driving method thereof, and a display device. The pixel circuit may comprise a first switch element, a driving transistor, a storage capacitor, a second switch element, and a photosensitive element.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: May 31, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiaoliang Ding, Xue Dong, Haisheng Wang, Yingming Liu, Wei Liu, Changfeng Li, Pengpeng Wang, Huizhong Zhu
  • Patent number: 11341912
    Abstract: The present disclosure provides a pixel circuit and a method for driving the same, a display panel and a display device. The pixel circuit includes: a reset compensation circuit, a data writing circuit, a light emitting control circuit, a driving transistor and a light emitting element, the reset compensation circuit is coupled to a gate, a first electrode and a second electrode of the driving transistor and a reset control signal line, and is configured to reset the gate of the driving transistor during a reset compensation stage and acquire a threshold voltage of the driving transistor under the control of a reset control signal provided by the reset control signal line.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: May 24, 2022
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Hongqing Feng
  • Patent number: 11341902
    Abstract: A display device including a display panel including scan lines, emission control lines, and pixels connected to the scan lines and the emission control lines; a first emission driver sequentially providing first emission control signals to odd-numbered emission control lines among the emission control lines in a first frame section; a second emission driver sequentially providing second emission control signals to even-numbered emission control lines among the emission control lines in a second frame section that is continuous from the first frame section; and a scan driver sequentially providing scan signals to the scan lines in each of the first and second frame sections.
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: May 24, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae Sic Lee, Won Kyu Kwak
  • Patent number: 11341910
    Abstract: A pixel circuit of low power consumption is provided, which includes a first transistor for providing a driving current, a light emitting element, a light emitting control circuit, a reset circuit, a writing circuit, and a storage capacitor. The light emitting control circuit is coupled between the first transistor and the light emitting element, and is for selectively conducting the driving current to the light emitting element. The reset circuit is for providing a first reference voltage to the light emitting element by a first frequency. The storage capacitor is coupled between the writing circuit and the first transistor. The writing circuit is for providing, by a second frequency different from the first frequency, a data voltage and a second reference voltage to the storage capacitor and the first transistor, respectively. The storage capacitor is for storing a first voltage for compensating a threshold voltage of the first transistor.
    Type: Grant
    Filed: February 9, 2021
    Date of Patent: May 24, 2022
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Kai-Wei Shiau, Chia-Yuan Yeh, Kuang-Hsiang Liu
  • Patent number: 11342385
    Abstract: A pixel arrangement structure, a display substrate, a display device, and a mask plate group. The pixel arrangement structure includes multiple minimum repeat units arranged in an array; each minimum repeat unit includes a first color sub-pixel, a second color sub-pixel, and a third color sub-pixel; a first connecting line between the centers of the first color sub-pixel and the second color sub-pixel extends along a first direction, and a second connecting line between the centers of the first color sub-pixel and the third color sub-pixel extends along a second direction; the orthographic projection of the first color sub-pixel on a first straight line falls into the orthographic projection of the third color sub-pixel on the first straight line, and the orthographic projection of the first color sub-pixel on a second straight line falls into the orthographic projection of the second color sub-pixel on the second straight line.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: May 24, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Hongli Wang, Lujiang Huangfu
  • Patent number: 11335301
    Abstract: A device for dimming a display screen includes a pixel driving circuit including a first Thin-Film Transistor, a second Thin-Film Transistor, a third Thin-Film Transistor, a capacitor and a pixel. Signals received by a gate of the first Thin-Film Transistor and a first electrode of the first Thin-Film Transistor correspond to a scanning signal Vscan and a data signal Vdata, respectively. Signals received by a gate of the third Thin-Film Transistor and a first electrode of the third Thin-Film Transistor correspond to a Vpwm signal and a transmitted signal transmitted from a second electrode of the second Thin-Film Transistor, respectively. A second electrode of the third Thin-Film Transistor is connected to the pixel. The capacitor is connected between the gate of the second Thin-Film Transistor and a power supply.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: May 17, 2022
    Assignee: KUNSHAN GO-VISIONOX OPTO-ELECTRONICS CO., LTD.
    Inventor: Yuqing Wang
  • Patent number: 11335246
    Abstract: A display panel and a display device are provided in the present disclosure. The display panel includes first pixels and second pixels, and further includes a display region including an optical component region and a regular display region. First light-emitting elements are in the optical component region; second light-emitting elements are in the regular display region; and a density of the light-emitting elements in the optical component region is less than a density of the light-emitting elements in the regular display region. The first pixels include first blue pixels, first red pixels, and first green pixels; a width-to-length ratio of a first drive transistor corresponding to a first blue pixel is R1, a width-to-length ratio of a first drive transistor corresponding to a first red pixel is R2, and a width-to-length ratio of a first drive transistor corresponding to a first green pixel is R3, where R1>R2>0 and/or R1>R3>0.
    Type: Grant
    Filed: September 14, 2020
    Date of Patent: May 17, 2022
    Assignee: Wuhan Tianma Micro-Electronics Co., Ltd.
    Inventors: Fengyun Wu, Yawei Wang, Dongxu Xiang, Yangzhao Ma
  • Patent number: 11315482
    Abstract: A pixel includes a light emitting device, a first transistor for controlling an amount of current flowing from a first power source to a second power source via the light emitting device, in response to a voltage applied to a first node, a second transistor coupled between a data line and a second node corresponding to a first electrode of the first transistor, and including a gate electrode coupled to a first scan line, a third transistor coupled between the first node and a third node corresponding to a second electrode of the first transistor, and including a gate electrode coupled to the first scan line, and a fourth transistor coupled between the third transistor and the third node, and configured to maintain a turn-on state.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: April 26, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dae Youn Cho, Ji Ho Moon, Jong Woo Park, Young Tae Choi
  • Patent number: 11315907
    Abstract: Some embodiments provide a full-color display module and display device. The full-color display module includes at least two light-emitting layers. Any one of the at least two light-emitting layers includes a substrate and a plurality of light-emitting portions encapsulated on the substrate. A type of any one of the plurality of light-emitting portions is one of a red light-emitting portion, a green light-emitting portion, and a blue light-emitting portion. The at least two light-emitting layers are successively laminated in a laminating direction and form a plurality of pixel points. Any one of the plurality of pixel points is a surrounding area on the full-color display module, which is surrounded by a surrounding curved surface. The surrounding area of the any one of the plurality of pixel points includes at least one red light-emitting portion, at least one green light-emitting portion, and at least one blue light-emitting portion.
    Type: Grant
    Filed: August 18, 2020
    Date of Patent: April 26, 2022
    Assignee: FOSHAN NATIONSTAR OPTOELECTRONICS CO., LTD
    Inventors: Kailiang Fan, Kuai Qin, Heng Guo, Qiang Zhao, Zongxian Xie, Chungan Jiang
  • Patent number: 11303256
    Abstract: A temperature compensation circuit for a power amplifier is provided, wherein data of circuit configurations corresponding to specific temperatures (including data associated with an output terminal voltage, a bias voltage, an adaptive bias, and a matching impedance of the power amplifier) for the power amplifier is stored in a read-only memory. Therefore, the temperature compensation circuit is capable of reading the data according to a temperature sensing signal to adjust the circuit configuration of the power amplifier accordingly, thereby, in a case of a constant input power of the power amplifier, an output power variance of the power amplifier is within a second interval (e.g., ?10%˜+10%) when an environment temperature varies within a first interval. Therefore, the power amplifier has a stable gain.
    Type: Grant
    Filed: November 2, 2020
    Date of Patent: April 12, 2022
    Assignee: RichWave Technology Corp.
    Inventor: Hwey-Ching Chien
  • Patent number: 11302247
    Abstract: The present disclosure provides a LED display device, which includes: a LED display substrate and a driving substrate opposite to each other, the LED display substrate includes: a base and a plurality of LED chips located on a side of the base distal to the driving substrate; the driving substrate includes: a PCB and a driving control element located on the PCB, and the driving control element is electrically coupled to the LED chips through a plurality of first signal wires for providing driving signals for the LED chips.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: April 12, 2022
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Pengjun Cao, Ming Zhai, Pei Li, Zhiyuan Wang, Jinpeng Li, Dan Li, Jian Li, Teng Zhang
  • Patent number: 11295673
    Abstract: A display device includes a display panel including a plurality of pixels, a timing controller which generates an emission start signal, an emission driver which supplies an emission control signal to the plurality of pixels based on the emission start signal received from the timing controller, a first scan driver which supplies a first scan signal to the plurality of pixels, a second scan driver which supplies a second scan signal to the plurality of pixels, and a data driver which supplies a data signal to the plurality of pixels. The timing controller adjusts a period in which the emission start signal is supplied based on a change of a driving frequency.
    Type: Grant
    Filed: October 14, 2020
    Date of Patent: April 5, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jun Hyun Park, Bon Yong Koo, Byung Chang Yu, Yu Jin Lee, Kyung Hoon Chung
  • Patent number: 11289013
    Abstract: A pixel circuit including a compensation circuit, a writing circuit, a light emitting element, and a power supplying circuit is provided. The compensation circuit comprises a first node, and provides a driving current to the light emitting element according to a voltage of the first node and a system high voltage. The writing circuit provides a data voltage to the compensation circuit according to a first control signal so that the compensation circuit sets the voltage of the first node. The power supplying circuit selectively couples the compensation circuit to the light emitting element, and provides the system high voltage and a system low voltage to the compensation circuit, in which the system low voltage is configured to reset the voltage of the first node. The first control signal and the second control signal are opposite to the first emission signal and the second emission signal, respectively.
    Type: Grant
    Filed: October 20, 2020
    Date of Patent: March 29, 2022
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Chih-Lung Lin, Po-Cheng Lai, Ting-Ching Chu, Po-Chun Lai, Mao-Hsun Cheng
  • Patent number: 11289040
    Abstract: A driving circuit and a driving method of a liquid crystal display are provided. By controlling a reset signal of a timing controller through a switching transistor, a GOA signal is recovered when reading compensation parameters is completed, and the GOA signal is turned off when the reset signal is restarted. Therefore, the timing controller is not affected by the GOA signal output by a pulse width modulator when performing SPI communication with a flash memory. In addition, this reduces communication time, thereby improving speed of optical compensation debugging of a production line.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: March 29, 2022
    Assignee: TCL China Star Optoelectronics Technology Co., Ltd.
    Inventor: Miaofa Wu
  • Patent number: 11289009
    Abstract: A pixel driving circuit for a light-emission-device-based display panel is provided, including a driving transistor coupled to a light-emission device per subpixel; a digital-driving circuit having a first input terminal configured to receive a pixel voltage signal corresponding to a grayscale level of a subpixel image to be displayed and a first output terminal coupled to a gate terminal of the driving transistor. The digital-driving circuit is configured to convert the pixel voltage signal to a digital signal and transform the digital signal to a pulse-width-modulation (PWM) signal outputted via the first output terminal to the gate terminal of the driving transistor. The PWM signal comprises a pulse width proportional to the grayscale level as a duty cycle in a period of driving the light-emitting device to display subpixel image.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: March 29, 2022
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE Technology Group Co., Ltd.
    Inventors: Guofeng Hu, Zhenkun Song, Ming Chen, Lingyun Shi, Yuxin Bi, Xin Duan, Yankai Gao, Hong Liu, Mingjian Yu
  • Patent number: 11289024
    Abstract: A display device includes: a display panel provided with multiple pixels; a driving circuit; and a power generator, wherein each of the pixels includes: a first switching transistor of which a gate electrode is connected to the gate line, of which a first electrode is connected to the data line, and of which a second electrode is connected to a first node; a driving transistor of which a gate electrode is connected to a reference line and thus receives a reference voltage supplied from the power generator, of which a first electrode is connected to the first node, and of which a second electrode is connected to a second node; and a light-emitting device of which an anode electrode is connected to the second node, and of which a cathode electrode is connected to a power line through which the power generator supplies a low-potential power supply voltage.
    Type: Grant
    Filed: July 6, 2020
    Date of Patent: March 29, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Kyujin Kim, Taehun Kim, Donggun Lee
  • Patent number: 11282444
    Abstract: A light emitting display apparatus includes a light emitting display panel including a plurality of pixels each operating in order of an initialization period, a sampling period, an offset voltage formation period, a data writing period, and a light emission period; a data driving circuit configured to supply data voltage to each of the pixels; a gate driving circuit configured to provide, to each of the pixels, a control signal having voltage levels determined for the initialization period, the sampling period, the offset voltage formation period, the data writing period, and the light emission period of a corresponding pixel; and a timing controller configured to control the data driving circuit and the gate driving circuit, wherein the offset voltage formation period is longer than the sampling period.
    Type: Grant
    Filed: April 7, 2021
    Date of Patent: March 22, 2022
    Assignee: LG Display Co.. Ltd.
    Inventors: YongHo Jang, KwangIl Chun