Solid Body Light Emitter (e.g., Led) Patents (Class 345/82)
  • Patent number: 11031442
    Abstract: The present disclosure includes: a display panel separated into a light emitting unit, in which an organic light emitting diode is disposed, and a light transmitting unit which selectively transmits light; and a driving circuit configured to drive the display panel. The display panel includes a first substrate, a second substrate, and a liquid crystal layer. In the first substrate, the organic light emitting diode is disposed in the light emitting unit, and a first electrode is disposed in the light transmitting unit. The second substrate faces the first substrate, and a second electrode is disposed in the light transmitting unit. The liquid crystal layer is interposed between the first electrode and the second electrode, and adjusts a transmittance due to a difference between a voltage applied to the first electrode and a voltage applied to the second electrode.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: June 8, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jaesung Lee, Jonghyeok Im
  • Patent number: 11024234
    Abstract: Embodiments of the present disclosure provide a signal combination circuit, a gate driving unit, a gate driving circuit, and a display device, the signal combination circuit includes a first active level output circuit configured to write an active-level voltage to a driving signal output terminal in a case where a signal provided by a first signal output terminal or a second signal output terminal is at an active level, and a first inactive level output circuit configured to write an inactive-level voltage to the driving signal output terminal in a case where the signals provided by the first signal output terminal and the second signal output terminal are at an inactive level. The signal combination circuit of the embodiments of the disclosure can realize the combination of the single pulse signals output by two shift registers, thereby outputting a double-pulse driving signal.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: June 1, 2021
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhidong Yuan, Yongqian Li, Can Yuan, Min He
  • Patent number: 11024784
    Abstract: A light emitting diode apparatus including a substrate, a plurality of light emitting diodes regularly arranged on the substrate and configured to emit ultraviolet (UV) light, the light emitting diodes including first, second, and third sub-light emitting diodes, a plurality of phosphor layers disposed on the light emitting diodes and to convert the wavelength of light emitted from the light emitting diodes, the phosphor layers including first, second, and third phosphor layers disposed on the first, second, and third sub-light emitting diodes, respectively, and a control unit configured to supply power to the light emitting diodes, in which the phosphor layers are spaced apart from each other by a blocking region, and the control unit is configured to cause at least a portion of the light emitting diodes to emit light.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: June 1, 2021
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Motonobu Takeya, Young Hyun Kim, Jong Ik Lee, Kwang Yong Oh
  • Patent number: 11009899
    Abstract: A semiconductor integrated circuit includes a constant-voltage circuit that outputs a constant voltage and a constant-current circuit. The constant-current circuit includes a first transistor. A voltage input as an input voltage to a first gate electrode of the first transistor is equal to the node voltage at an intermediate node in a connection path between the output of the constant-voltage circuit and an external resistor. A source region of the first transistor is connected to a fixed power supply, and a drain region of the first transistor is connected to the external power supply via a load. In the first transistor, a constant current can be made to flow between the source region and the drain region based on the input voltage. A constant-current drive system in which the semiconductor integrated circuit and the external resistor have been mounted on a circuit board is also constructed.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: May 18, 2021
    Assignee: KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHO
    Inventors: Kengo Shima, Daisuke Aoki, Satoki Uruno, Junichi Matsubara
  • Patent number: 11004382
    Abstract: A backlight source and a manufacture method thereof, a display device are provided. The backlight source includes a base substrate, the base substrate is divided into a plurality of light emitting regions, and at least one of the plurality of light emitting regions comprises a plurality of light emitting elements, a first common polar line, and a second common polar line. Light emitting brightness of at least one of the light emitting regions is adjustable independently.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: May 11, 2021
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yafei Li, Bo Gao, Pei Li, Guangquan Wang, Haiwei Sun, Ming Chen, Xue Dong, Wenjia Sun, Jinxing Liu
  • Patent number: 11004908
    Abstract: A pixel structure and a display device are provided. The pixel structure is designed and arranged in this way, which is helpful for simplifying a layout design of data lines. In addition, this can reduce dependence on a compensation circuit in a driving circuit. Further, arrangements and shapes of first sub-pixels and second sub-pixels are same. Therefore, a set of masks can be used to make the first sub-pixels and the second sub-pixels together, thereby reducing the mold charge of the masks and saving costs.
    Type: Grant
    Filed: April 14, 2020
    Date of Patent: May 11, 2021
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Jiuhong Peng
  • Patent number: 11004386
    Abstract: Method and system for calibrating a plurality of voltages of a light-emitting element and a plurality of grayscale values of a respective pixel of the light-emitting element on a display panel are provided. The method may include determining a mapping correlation between the plurality of voltages of the light-emitting element and a plurality of luminance values of the light-emitting element, determining N grayscale values of the pixel, and determining N first luminance values each corresponding to the respective one of the N grayscale values. The method may also include determining N first voltages mapped to the N first luminance values using the mapping correlation and determining, of each one of the N first luminance values, (M?1) second luminance values. Each one of the (M?1) second luminance values may correspond to a different dimmed luminance value of the respective first luminance value.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: May 11, 2021
    Assignee: KUNSHAN YUNYINGGU ELECTRONIC TECHNOLOGY CO., LTD.
    Inventors: Chun-Ta Wu, Yu-Hsing Chuang, Ying-Hao Tu, Wu-Hsiung Cheng
  • Patent number: 10997939
    Abstract: A display device may include gate lines, clock lines, a gate driver, connection lines, and compensators. The gate driver may be electrically connected to the gate lines and disposed between the gate lines and the clock lines. The connection lines may be electrically connected to the clock lines and may transmit clock signals to the gate driver. The compensators may be respectively electrically connected to the connection lines. One of the clock lines may be electrically connected to one of the compensators and may be electrically connected to one of the connection lines. The one of the clock lines may be positioned between a first section of the one of the compensators and a first section of the one of the connection lines.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: May 4, 2021
    Inventor: Dong Hee Shin
  • Patent number: 10991768
    Abstract: A pixel arrangement including first groups of sub-pixels arranged in a first direction, each of the first groups including first sub-pixels and third sub-pixels arranged alternately and second groups of sub-pixels arranged in the first direction, each of the second groups including third sub-pixels and second sub-pixels arranged alternately. The first groups and the second groups are alternately arranged in a second direction intersecting the first direction. The first groups and the second groups are arranged to form third groups of sub-pixels arranged in the second direction and fourth groups of sub-pixels arranged in the second direction. The third groups and the fourth groups are alternately arranged in the first direction. Each of the third groups includes first sub-pixels and third sub-pixels arranged alternately. Each of the fourth groups includes third sub-pixels and second sub-pixels arranged alternately.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: April 27, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yansong Li, Haidong Wu, Shanshan Bai, Zhihui Xiao, Yue Liu, Haohan Zhang, Yangpeng Wang
  • Patent number: 10991334
    Abstract: A large-panel liquid crystal display uses wireless data transmission to provide display data to the pixels arranged in a two-dimensional array of pixel rows and pixel columns in the display area. Pixels are also arranged into pixel groups with each group having a plurality of pixel blocks. Antennas arranged in a two-dimensional array are used to receive wireless signals indicative of the display data from a wireless signal source and to provide display data to the pixels. Each antenna is connected to a different data line in a pixel group for providing display data to the pixel group. Antennas are embedded in the electronic layers on upper surface of the lower substrate and the wireless signal source is embedded in the backlight unit of the display. With wireless data transmission, data lines can be confined within the display area and not connected to conventional semiconductor data drivers.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: April 27, 2021
    Assignee: A.U. VISTA, INC.
    Inventors: Yu Sheng Huang, Cheng Nan Yeh
  • Patent number: 10984718
    Abstract: A display device may include pixels coupled to scan lines and data lines, at least one scan driver for supplying a scan signal to the pixels through the scan lines, and a data driver for supplying a data signal and a bias signal to the pixels through the data lines. The pixels are supplied with the data signal when the scan signal is supplied during display periods, and are supplied with the bias signal when the scan signal is supplied during a bias period between the display periods. By the bias signal, a bias voltage is supplied to first group pixels that emit light with a preset grayscale during the display periods.
    Type: Grant
    Filed: August 15, 2019
    Date of Patent: April 20, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Joon Suk Baik, Jae Woo Ryu, Myung Ho Lee, Sang Su Han
  • Patent number: 10984712
    Abstract: A display system includes a pixel circuit and an external compensation system that is operable with the pixel circuit to compensate for differences in a property of the drive transistor and/or light-emitting device.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: April 20, 2021
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Michael James Brownlow, Tong Lu
  • Patent number: 10986304
    Abstract: A display device includes: a panel in which plural pixels that emit lights according to a video signal are sectioned into plural areas; a light reception sensor that is arranged in each of the areas and outputs a light reception signal according to light emission luminance; and signal processing means. The area includes first and second pixel groups including at least one pixel and plural pixels other than the first pixel group, respectively. The signal processing means includes arithmetic means for outputting an arithmetic signal according to arithmetic operation of an offset value and a light reception value; converting means for outputting digital data according to the arithmetic signal; and correcting means for correcting the video signal according to the digital data and supplying the corrected video signal to the first pixel group.
    Type: Grant
    Filed: October 27, 2009
    Date of Patent: April 20, 2021
    Assignee: JOLED Inc.
    Inventors: Junichi Yamashita, Katsuhide Uchino
  • Patent number: 10977976
    Abstract: A display panel is provided. The display panel includes a display portion and a peripheral portion, the peripheral portion is provided with a bending portion, a demultiplexing circuit, and a data driving circuit. The data driving circuit is located at a side of the peripheral portion that is away from the display portion, and the demultiplexing circuit is located between the data driving circuit and the bending portion. Thus, the bezel of the display panel can be narrowed.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: April 13, 2021
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Shaojing Wu
  • Patent number: 10978667
    Abstract: A substrate to be encapsulated, an encapsulation assembly and a display device are provided. The substrate to be encapsulated comprises a base substrate, and a plurality of notches arranged in an array located in a region to be attached to an encapsulation layer, wherein the plurality of notches have a same shape of regular polygon.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: April 13, 2021
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., Chengdu BOE Optoelectronics Technology Co., Ltd.
    Inventors: Wanli Dong, Jibum Yang
  • Patent number: 10971412
    Abstract: A mounting substrate according to an embodiment of the present technology includes: a wiring substrate (30); a plurality of light-emitting elements (12) arranged in a matrix on the wiring substrate; and a plurality of drive ICs (13) that are arranged in a matrix on the wiring substrate, and control light emission of the light-emitting elements. The light-emitting elements and the drive ICs are mounted on a same surface. The wiring substrate includes a plurality of first wiring lines (16) on a mounting surface whre the light-emitting elements and the dive ICs are mounted. The first wiring lines electrically couple the light-emitting elements to the drive ICs.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: April 6, 2021
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Akiyoshi Aoyagi, Ken Kikuchi, Katsuhiro Tomoda
  • Patent number: 10971067
    Abstract: The invention provides an AMOLED pixel driving circuit, driving method and terminal. The AMOLED pixel driving circuit adopts a 6T1C structure, comprising a first TFT, i.e., driving TFT, a second TFT, a third TFT, a fourth TFT, a fifth TFT, a sixth TFT, a storage capacitor and an OLED; the scan signal, the first light-emitting control signal and the second light-emitting control signal are combined to successively correspond to a reset phase, a compensation phase and a light-emitting phase, so that the driving current flowing through the OLED is independent of the threshold voltage of the driving TFT and the positive power voltage. The invention compensates for the threshold voltage drift of the driving TFT and also for the voltage drop in positive power voltage.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: April 6, 2021
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Shingo Kawashima, Jun Li
  • Patent number: 10971551
    Abstract: An organic light-emitting diode display panel and a manufacturing method therefor, and a display apparatus are provided. The organic light-emitting diode display panel comprises: a base substrate; an anode and an auxiliary electrode arranged on the base substrate, wherein the anode and the auxiliary electrode are insulated from each other, a pixel definition layer arranged on the anode and the auxiliary electrode, wherein the pixel definition layer has a pixel opening region exposing the anode and a via exposing the auxiliary electrode; and the luminescent layer and a cathode sequentially arranged on the pixel definition layer, wherein the cathode is electrically connected to the auxiliary electrode arranged in the via.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: April 6, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Huifeng Wang
  • Patent number: 10962829
    Abstract: The disclosure provides a light bar, a backlight module and a display device. The light bar includes a plurality of lamp beads, wherein each of the lamp beads is a dual-crystal lamp with two light-emitting crystals.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: March 30, 2021
    Assignees: CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Fanjian Zeng, Hebing Ma, Xianyong Gao, Sijun Lei, Haijun Liao, Yunsong Li, Bo Ran, Huan Wu, Qiang Chen
  • Patent number: 10964743
    Abstract: A semiconductor device including pixels arranged in a matrix of n rows and m columns, in which the pixels in the m-th column are shielded from light, is provided.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: March 30, 2021
    Inventor: Yoshiyuki Kurokawa
  • Patent number: 10949026
    Abstract: Provided is a method of creating an image on an array of optoelectronic elements comprising (a) providing a device comprising an array of optoelectronic elements and circuitry connected to each optoelectronic element, wherein the optoelectronic element comprises plural quantum dots or plural nanorods, and wherein the circuitry is configured to be capable of switching each optoelectronic element independently between an effective forward bias configuration and a reverse-bias configuration, (b) imposing an effective reverse bias on two or more of the optoelectronic elements, (c) providing circuitry that will detect the onset of photocurrent from an individual effective reverse biased optoelectronic element and that will respond to the photocurrent by changing the bias on the individual optoelectronic element to an effective forward bias.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: March 16, 2021
    Assignees: Dow Global Technologies LLC, Rohm and Haas Company, The Board of Trustees of the University of Illinois, Rohm and Haas Electronic Materials LLC
    Inventors: Peter Trefonas, III, Seongyong Cho, Kishori Deshpande, Trevor Ewers, Jaebum Joo, Edward Greer, Bong Hoon Kim, Nuri Oh, Jong Keun Park, Moonsub Shim, Jieqian Zhang
  • Patent number: 10950173
    Abstract: An organic light-emitting display panel and a display device, comprising: multiple light-emitting components; pixel circuits connected one-to-one to the light-emitting components, the pixel circuits being connected to corresponding first poles of the light-emitting components, second poles of the light-emitting components being connected to first power ends; diversion modules corresponding one-to-one to the light-emitting components, wherein the diversion modules are connected at first ends thereof to the corresponding first poles of the light-emitting components and connected at second ends to the corresponding second poles of the light-emitting components, and the diversion modules are used for diversion with respect to the corresponding light-emitting components when the temperature of the organic light-emitting display panel satisfies a selected temperature range.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: March 16, 2021
    Assignees: Ordos Yuansheng Optoelectronics Co., Ltd., BOE Technology Group Co., Ltd.
    Inventor: Kening Zheng
  • Patent number: 10943529
    Abstract: An electronic device may have a hinge that allows the device to be flexed about a bend axis. A display may span the bend axis. To facilitate bending about the bend axis without damage when the display is cold, a portion of the display that overlaps the bend axis may be selectively heated. The portion of the display that overlaps the bend axis may be self-heated by illuminating pixels in the portion of the display that overlap the bend axis or may be heated using a heating element or other heating structure that provides heat to the portion of the display overlapping the bend axis. Control circuitry may engage a latching mechanism that prevents opening and closing of the electronic device when the temperature of the portion of the display that overlaps the bend axis is below a predetermined temperature.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: March 9, 2021
    Assignee: Apple Inc.
    Inventors: Scott A. Myers, Richard H. Koch
  • Patent number: 10943326
    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: February 19, 2019
    Date of Patent: March 9, 2021
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Mitsutoshi Miyasaka, Yoichi Momose, Kiyoshi Sekijima
  • Patent number: 10944032
    Abstract: A light emitting diode assembly structure includes a light emitting chip, a color converting layer, a light guiding member, and a reflecting member. The color converting layer coats the light emitting chip and the light guiding member coats the color converting layer. The planar or non-planar reflecting member is arranged over the light guiding member. The reflecting member faces toward the light emitting chip and changes the range of illumination of the light emitted by the light emitting chip. The reflecting member can be arranged on a side of the color converting layer and light can be irradiated towards the exterior of the light emitting diode assembly structure.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: March 9, 2021
    Assignee: HARVATEK CORPORATION
    Inventors: Zhi-Ting Ye, Shyi-Ming Pan, Chih-Wei Chang
  • Patent number: 10922941
    Abstract: A system and method for detecting smoke using a photoelectric sensor is disclosed herein. The smoke detector can comprise a photoelectric smoke detection system, a smoke detector memory, and a microprocessor. The photoelectric smoke detection system can comprise a low-frequency light source, a high-frequency light source, and a light sensor. The smoke detector memory can comprise a smoke detector application, a plurality of low-frequency smoke signatures, and a plurality of high-frequency smoke signatures. Each of the low-frequency smoke signatures can relate to how a low-frequency light interacts with one of a plurality of particulates. Each of the high-frequency smoke signatures can relate to how a high-frequency light interacts with one of the plurality of particulates. Each of the particulates can be indicative or non-indicative of a fire.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: February 16, 2021
    Assignee: 4Morr Enterprises IP, LLC
    Inventors: Michael Orr, Eric Overton
  • Patent number: 10914781
    Abstract: An aging test method for a light emitting device is provided. The aging test method includes: collecting, in an aging process applied to the light emitting device, an initial value of a first characteristic parameter of the light emitting device and an initial test time point; collecting a current value of the first characteristic parameter and a current test time point (step S1); generating a feature line according to the initial value, the current value, the initial test time point, and the current test time point, and calculating a slope of the feature line; determining whether the slope of the feature line is greater than or equal to a predetermined threshold and less than 0, and returning to the step S1 if a result of the determination is NO; and terminating the aging process applied to the light emitting device if the result of the determination is YES.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: February 9, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chao Kong, Kening Zheng, Dong Chen, Yinan Liang
  • Patent number: 10909933
    Abstract: In one example, a system for driving current, including a circuit to receive an input voltage, and to produce a current to be provided to one or more light-emitting diodes. The current is to be linearly dependent on the input voltage.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: February 2, 2021
    Assignee: INTEL CORPORATION
    Inventors: Khaled Ahmed, Prakash K. Radhakrishnan
  • Patent number: 10902782
    Abstract: Various embodiments provide is an organic light emitting display device including a first pixel having a first organic light emitting diode (OLED) and a first driving transistor and a second pixel having a second OLED and a second driving transistor. The first pixel and the second pixel are electrically connected to a first data line. A source electrode of the first driving transistor is electrically connected to a first reference voltage line, and a source electrode of the second driving transistor is electrically connected to a second reference voltage line.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: January 26, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventor: Joonmin Park
  • Patent number: 10901314
    Abstract: A pixel arrangement structure includes a plurality of pixel groups that are periodically arranged. Each pixel group includes four pixels, a first pixel and a second pixel are arranged in a same row, a third pixel and a fourth pixel are arranged in adjacent another row, the first pixel and the third pixel are arranged in a same column, and the second pixel and the fourth pixel are arranged in adjacent another column. An arrangement of sub-pixels in the first pixel is different from an arrangement of sub-pixels in the second pixel, an arrangement of sub-pixels in the third pixel is same as the arrangement of the sub-pixels in the second pixel, and an arrangement of sub-pixels in the fourth pixel is same as the arrangement of the sub-pixels in the first pixel. An organic light emitting device, a display device and a mask are also provided.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: January 26, 2021
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.
    Inventor: Fengli Ji
  • Patent number: 10903455
    Abstract: Disclosed is a light emitting display device which facilitates to improve light-extraction efficiency of pixels, and to maximize light-extraction efficiency of each pixel, wherein the light emitting display device includes a substrate having a first area and a second area, a planarization coating layer prepared on the substrate and configured to have a first curve pattern prepared on the first area, and a second curve pattern prepared on the second area, and an emission device prepared on the first curve pattern and the second curve pattern, wherein a thickness of the planarization coating layer overlapping the first curve pattern is different from a thickness of the planarization coating layer overlapping the second curve pattern, and each of the first curve pattern and the second curve pattern includes a plurality of protruding portions having an aspect ratio of 0.4˜0.6.
    Type: Grant
    Filed: November 3, 2019
    Date of Patent: January 26, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Soo-Kang Kim, Won-Hoe Koo, Ji-Hyang Jang, So-Young Jo
  • Patent number: 10876710
    Abstract: An emergency lighting head including an LED light surface and a reflector, wherein the reflector has a main body reflector portion and a crown reflector portion attached to the main body portion. The main body reflector portion has an inner reflective surface symmetrical about a central optical axis. The reflective surface has a first end for receiving the LED light surface and a second end opposite the first end. The crown reflector portion is attached to the second end of the main body reflector portion and has an inner reflective surface tilted inwardly from the second end of the main body reflector portion toward the central optical axis.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: December 29, 2020
    Assignee: Thomas & Betts International LLC
    Inventor: Radu Cornel Rapeanu
  • Patent number: 10872569
    Abstract: The present disclosure provides a compensation method for pixel circuit, a pixel circuit, and a display device. The pixel circuit includes a data writing circuit, a driving circuit, a sensing circuit, and an energy storage circuit, the compensation method includes: in a charging stage, acquiring a voltage of the second node by the sensing circuit, adjusting a data voltage outputted by the data writing circuit to the first node based on the acquired voltage of the second node, and charging the energy storage circuit by using the adjusted data voltage; and in a compensation stage, compensating characteristic parameters of the driving circuit by the charged energy storage circuit.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: December 22, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Song Meng
  • Patent number: 10871690
    Abstract: A display device includes: pixels; gate lines for connecting to the pixels; a first gate driving block for connecting to first and second gate lines that are adjacent to each other; and a second gate driving block for connecting to the first gate line and the second gate line, wherein the first gate driving block includes: a first gate signal generating portion; a first transistor connected between a first output terminal of the first gate signal generating portion and the first gate line; and a second transistor connected between the first output terminal and the second gate line, wherein the second gate driving block includes: a second gate signal generating portion; a third transistor connected between a second output terminal of the second gate signal generating portion and the first gate line; and a fourth transistor connected between the second output terminal and the second gate line.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: December 22, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Whee-Won Lee, Ga-Na Kim
  • Patent number: 10867551
    Abstract: A degradation compensation device and an organic light emitting display device including the same are provided. The degradation compensation device includes a degradation rate acquisition unit acquiring estimated degradation rates, estimated with respect to a plurality of respective pixels, based on panel usage information, a digital compensation unit performing digital compensation to lower a digital gradation of each pixel, based on a luminance of a pixel having a maximum degradation rate, among the estimated degradation rates, and an analog compensation unit performing analog compensation to increase luminance of the plurality of pixels by changing an analog voltage supplied to a panel, after performing the digital compensation.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: December 15, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ji Heon Ok, Yong Hoon Yu, Joo Hyuk Yum, Jae Youl Lee, Byoung Yoon Jang
  • Patent number: 10862067
    Abstract: An organic light emitting display device is provided that includes a first substrate having a first pad electrode; a second substrate having a touch array and a second pad electrode connected to the touch array; a plurality of first barriers provided on one surface of the first substrate adjacent to the first pad electrode; and a plurality of second barriers provided on the other surface of the second substrate facing one surface of the first substrate, wherein the first barriers are coupled to the second barriers alternately with each other.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: December 8, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Goeun Jung, Hyung Geun Kwon
  • Patent number: 10860141
    Abstract: The invention discloses a LED circuit and a touch sensing method. Said method, as applied to an array of LEDs, comprises the following steps. First, a driving signal is provided. The driving signal is configured to set at least one of the LEDs in a driven mode or a sensing mode. When a LED is set in the sensing mode, it receives an environmental light, whose intensity is then compared to a first threshold. When said intensity is below that threshold, the location corresponding to the LED is marked as a touch location.
    Type: Grant
    Filed: October 5, 2019
    Date of Patent: December 8, 2020
    Assignee: Dynascan Technology Corp.
    Inventors: Tsun-I Wang, Ching-Chun Wu, Chia-Liang Yang
  • Patent number: 10845692
    Abstract: A projector assembly includes a light emitting diode (LED) array, wherein the LED array has an array axis, wherein the LED array includes a plurality of LEDs arranged along the array axis, and wherein the plurality of LEDs are individually addressable. The projector assembly includes a rotatable actuator supporting the LED array, wherein the rotatable actuator has a rotation axis, and wherein the rotation axis and the array axis are parallel. The projector assembly includes a collimator positioned in optical communication with the LED array for collimating light emitted from the plurality of LEDs and a set of imaging optics positioned in optical communication with the collimator for focusing collimated light and forming a first image of the LED array at a distance, wherein the first image includes a first axis corresponding to the array axis and a second axis orthogonal to the rotation axis.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: November 24, 2020
    Assignee: Magic Leap, Inc.
    Inventor: Fahri Yaras
  • Patent number: 10839733
    Abstract: A display may have an array of pixels arranged in rows and columns. Display driver circuitry may be provided along an edge of the display. Data lines that are associated with columns of the pixels may be used to distribute data from the display driver circuitry to the pixels. Gate lines in the display may each have a horizontal straight portion that extends along a respective row of the pixels and may each have one or more non-horizontal segments such as zigzag segments. The non-horizontal portion of each gate line may be connected to the horizontal straight portion of the gate line by a via. The non-horizontal portions may each have portions that are overlapped by portions of the data lines. Dummy gate line structures may be provided on the display that are not coupled to any of the pixels in the display.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: November 17, 2020
    Assignee: Apple Inc.
    Inventors: Shinya Ono, Chun-Yao Huang, Hao-Lin Chiu, Ivan Knez, Patrick B. Bennett, Shih Chang Chang, Byung Duk Yang
  • Patent number: 10840320
    Abstract: Systems, methods, and computer-readable media for sensing ambient light with a display assembly are provided. A display assembly may include at least one light-generating component and at least one light-detecting component, each of which may be positioned underneath a single opening in an electronic device housing.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: November 17, 2020
    Assignee: APPLE INC.
    Inventors: Mohammad Yeke Yazdandoost, Giovanni Gozzini, Volodymyr Borshch
  • Patent number: 10818150
    Abstract: Systems and methods for controlling a luminous intensity distribution of a visual alarm device are provided that include a processor transmitting a first signal to a current source and transmitting a second signal to a gate of a transistor. Responsive to receiving the first signal, the current source can transmit current to LEDs connected in series with the current source. Responsive to receiving the second signal, the transistor can block the current from flowing from a source of the transistor to a drain of the transistor, thereby channeling the current to a subset of the LEDs connected in parallel with the transistor. Responsive to failing to receive the second signal, the transistor can allow the current to flow from the source of the transistor to the drain of the transistor, thereby channeling the current away from the subset of the LEDs connected in parallel with the transistor.
    Type: Grant
    Filed: February 5, 2019
    Date of Patent: October 27, 2020
    Assignee: Honeywell International Inc.
    Inventor: Michael Barson
  • Patent number: 10818236
    Abstract: The present disclosure relates to a display device, a display substrate, a method and a device for display compensation. The method includes: before displaying an image, performing initial compensation on each of the pixel circuits to obtain an average reference voltage of the plurality of pixel circuits; controlling the display substrate to display an image and performing external compensation on each of the pixel circuits during a display duration of one frame of the image, obtaining a charging voltage on the sensing line of each of the pixel circuits during the external compensation, obtaining a first reference voltage of each of the pixel circuits according to the charging voltage on the sensing line and the average reference voltage, and performing internal compensation on each of the pixel circuits according to the first reference voltage.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: October 27, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Cuili Gai, Baoxia Zhang, Ling Wang, Pan Xu, Yicheng Lin
  • Patent number: 10818242
    Abstract: A pixel circuit includes a driving transistor, a write transistor, a first switching transistor, a first storage capacitor, a second and third switching transistors, and a second storage capacitor. The driving transistor controls a current flowing in a light-emitting device. The write transistor controls application of a signal voltage to a source end of the driving transistor. The first switching transistor controls a gate voltage of the driving transistor during correction operation that allows a gate-source voltage of the driving transistor to come close to a threshold voltage of the driving transistor. The second switching and third switching transistors are provided, in series, at an electrically conductive path between the source end of the driving transistor and a first voltage line.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: October 27, 2020
    Assignee: JOLED INC.
    Inventor: Tetsuro Yamamoto
  • Patent number: 10783814
    Abstract: A system determines the efficiency degradation of organic light emitting devices (OLEDs) in multiple array-based semiconductor devices having arrays of pixels that include OLEDs. The system determines the relationship between changes in an electrical operating parameter of the OLEDs and the efficiency degradation of the OLEDs in each of the array-based semiconductor devices, uses the determined relationship for a selected one of the array-based semiconductor devices to determine the efficiency degradation of the OLEDs, and compensates for the efficiency degradation. The relationship between changes in an electrical operating parameter of the OLEDs and the efficiency degradation of the OLEDs in the array-based semiconductor devices may be determined by the use of a test OLED associated with each of the devices.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: September 22, 2020
    Assignee: Ignis Innovation Inc.
    Inventor: Gholamreza Chaji
  • Patent number: 10777124
    Abstract: A light-emitting device driving circuit including a light emitting device, a delivery capacitor, a driving transistor, a reset circuit, a compensation circuit, and a data circuit is provided. The delivery capacitor is electrically connected to a low-level voltage. The driving transistor is configured to drive the light-emitting device according to a driving voltage received from a driving voltage line higher than that of the low-level voltage. The reset circuit is configured to determine whether to electrically connect the light-emitting device to the first node. The compensation is configured to receive a reference voltage higher than the low-level voltage to control a gate voltage of the driving transistor through a second node. The data circuit is configured to receive a data voltage to determine whether to electrically connect the data voltage to the compensation circuit and whether to electrically connect the data voltage to the delivery capacitor.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: September 15, 2020
    Assignee: MIKRO MESA TECHNOLOGY CO., LTD.
    Inventors: Shyh-Feng Chen, Li-yi Chen
  • Patent number: 10779379
    Abstract: A carrier-controlled LED light includes at least one LED and a drive unit. The drive unit is coupled to the at least one LED, and receives a carrier light signal to control the at least one LED to proceed to light. The drive unit includes a light control unit and a comparison unit. The light control unit drives a light action of the at least one LED according to a light command content of the carrier light signal. The comparison unit receives a DC working electricity and compares the DC working electricity with a reference voltage value. When a voltage value of the DC working electricity is less than the reference voltage value, the light control unit enters a sleep mode.
    Type: Grant
    Filed: February 4, 2019
    Date of Patent: September 15, 2020
    Assignee: Semisilicon Technology Corp.
    Inventor: Wen-Chi Peng
  • Patent number: 10770014
    Abstract: A display device includes a display panel having a display region and a peripheral region. The display panel includes a substrate and a scan driving circuit. The scan driving circuit disposed on the substrate includes a plurality of scan driving blocks and a plurality of first conductive lines. The first conductive lines are respectively coupled to and disposed between adjacent scan driving blocks. The scan driving blocks are disposed corresponding to the peripheral region, and the first conductive lines are disposed corresponding to the display region and the peripheral region.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: September 8, 2020
    Assignee: INNOLUX CORPORATION
    Inventors: Chia-Min Yeh, Hung-Hsun Chen, Hui-Min Huang, Cheng-Tso Chen, Li-Wei Sung
  • Patent number: 10762976
    Abstract: The present disclosure provides a shift register. The shift register includes: a first node control module for controlling level at the first node; a second node control module for controlling level at a second node; and an output control module for controlling the output terminal to output high or low level. The first node control module includes an input unit configured to write the input signal into the third node and a protection unit configured to control a level at a fourth node based on a level at the third node and control writing of the level at the fourth node into the first node based on the second clock signal. The technical solution of the present disclosure can prevent the transistor for providing the third node with inputting signal from being broken down.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: September 1, 2020
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Renyuan Zhu, Yue Li, Dongxu Xiang, Yana Gao, Xingyao Zhou, Gaojun Huang, Yilin Xu, Zhonglan Cai, Juan Zhu
  • Patent number: 10760747
    Abstract: The present invention provides a lighting apparatus which is easy in expandability of a plurality of lighting panels. The lighting apparatus according to the present invention may include: a plurality of lighting panels including an emission part having a light emitting device which emits light with a current flowing between a first electrode and a second electrode; and a panel connection means disposed between the plurality of lighting panels to electrically connect first and second electrodes between adjacent lighting panels. Each of the plurality of lighting panels may include first and second auxiliary wirings electrically connected between adjacent panel connection means.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: September 1, 2020
    Assignee: JUSUNG ENGINEERING CO., LTD.
    Inventors: Jung Bae Kim, Young Tae Yoon, Kyung Guk Lee
  • Patent number: 10755627
    Abstract: A method and system of compensating for localized phenomena in a display is disclosed. The display array includes a plurality of normal pixels, a plurality of reference pixels distributed across the display array, and a controller for adjusting content data signals for the plurality of normal pixels to compensate for aging of the pixels in the array. The controller determines the effect of a localized phenomena on each of the normal pixels based on a difference between a parameter of the effected normal pixels and the parameter of the effected reference pixel in proximity thereto. An adjusted aging compensation value based on a function of the difference in the parameters associated with the localized phenomena is calculated by the controller. The adjusted aging compensation values are applied to data content signals of the effected normal pixels, and the original aging compensation values are applied to the normal pixels not effected by the localized phenomena.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: August 25, 2020
    Assignee: Ignis Innovation Inc.
    Inventors: Gholamreza Chaji, Mehdi Torbatian