Diverse-type Energizing Or Bias Supplies To Different Electrodes Patents (Class 315/169.1)
  • Patent number: 11972722
    Abstract: Provided are a display panel, an integrated chip, and a display device. The display panel includes a first display region, a second display region, and a pixel circuit. The pixel circuit includes a first pixel circuit and a second pixel circuit, where the first pixel circuit is connected to a light-emitting element in the first display region, and the second pixel circuit is connected to a light-emitting element in the second display region. The pixel circuit includes a drive transistor and a first presetting module, and a terminal of the first presetting module is connected to the drive transistor, where a control terminal of a first presetting module in the first pixel circuit is configured to receive a first control signal, and a control terminal of a first presetting module in the second pixel circuit is configured to receive a second control signal.
    Type: Grant
    Filed: January 31, 2023
    Date of Patent: April 30, 2024
    Assignee: Xiamen Tianma Display Technology Co., Ltd.
    Inventor: Yong Yuan
  • Patent number: 11963416
    Abstract: A first pixel circuit and a second pixel circuit are connected to a first data signal line. A third pixel circuit and a fourth pixel circuit are connected to a second data signal line. The first data signal line is connected to a first connection wire provided to a frame region. The second data signal line is connected to a second connection wire provided to the frame region. A sum of resistance values of the first data signal line and the first connection wire is smaller than a sum of resistance values of the second data signal line and the second connection wire.
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: April 16, 2024
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Nobuhiko Suzuki, Tomoo Furukawa
  • Patent number: 11963404
    Abstract: A display device includes a substrate including an organic film layer, a first lower pattern which is disposed on the substrate, includes overlap patterns, first bridges, and second bridges, and has a mesh shape, a second lower pattern which is disposed in a same layer as the first lower pattern, is connected to the first lower pattern, and surrounds the first lower pattern, a first active pattern disposed on the first lower pattern, and a plurality of gate electrodes disposed on the first active pattern and overlapping the overlap patterns.
    Type: Grant
    Filed: July 14, 2021
    Date of Patent: April 16, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Changho Yi, Jung-Woo Ha, Jong-Ryuk Park, Ji-Eun Lee, Sungho Kim, Joonhyoung Park, Seokje Seong
  • Patent number: 11929012
    Abstract: A display module and a display apparatus including the same are provided. The display module includes a module substrate; pixels provided on the module substrate; and a micro-pixel controller configured to supply drive currents to the pixels. The micro-pixel controller includes: a first input pad for receiving a power voltage; a second input pad for receiving a data voltage; pixel circuits configured to output the drive currents to the pixels; a control circuit configured to distribute the power voltage and the data voltage to the pixel circuits; a first ESD protection circuit connected to the first input pad and the control circuit through a first voltage line and configured to transmit the power voltage to the control circuit; and a second ESD protection circuit connected to the second input pad and the control circuit through a second voltage line and configured to transmit the data voltage to the control circuit.
    Type: Grant
    Filed: February 22, 2022
    Date of Patent: March 12, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sangyoung Park, Jongsu Oh, Hoseop Lee, Tetsuya Shigeta
  • Patent number: 11869424
    Abstract: The present disclosure relates to the field of display technology, and proposes a pixel driving circuit, a pixel structure, and a display panel. The pixel driving circuit includes a plurality of driving transistors. For each driving transistor the first terminal is connected to a first power terminal, the second terminal is connected to a first node, and the control terminal is connected to a second node, so as to input current to the first node under the effect of the voltage at the second node. The low pixel density area of the display panel can be provided with the above-mentioned pixel driving circuit, so that the brightness difference between the low pixel density area and the high pixel density area can be avoided.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: January 9, 2024
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Libin Liu, Yu Feng, Shiming Shi
  • Patent number: 11867366
    Abstract: An LED module may include at least one LED and an indicator. The indicator may include one or more diffusing surfaces defining an angular diffusing groove. The diffusing groove may receive the LED such that the LED is at least partially located within a volume space defined by the one or more diffusing surfaces. The diffusing groove may diffuse a light emitted from the LED and incident on the one or more diffusing surface of the diffusing groove such that the light is diffused into an interior of the indicator.
    Type: Grant
    Filed: August 2, 2021
    Date of Patent: January 9, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seongyun Baek, Jaehong Park, Yusuf Cinar, Hanhong Lee
  • Patent number: 11810507
    Abstract: A display unit includes sub-pixels that each have a light emitting element, a capacitor, a first transistor that writes a video signal potential to the capacitor, and a second transistor that provides a drive current to the light emitting element based on a voltage stored in the capacitor. Each first transistor has a channel width W and channel length L, such that a width to length ratio is W/L. The width to length ratio W1/L1 of one of the first transistors is different than a width-to-length ratio W2/L2 of at least one other of the first transistors.
    Type: Grant
    Filed: April 14, 2022
    Date of Patent: November 7, 2023
    Assignee: Sony Group Corporation
    Inventor: Tetsuo Minami
  • Patent number: 11791607
    Abstract: Various embodiments of a laser driver are described herein. In an embodiment, a laser driver system includes: an external set of inductors including a first external inductor and a second external inductor; an internal set of inductors including a first internal inductor and a second internal inductor; and a DC-to-DC convertor configured to bias a first output path defined by the first external inductor and the first internal inductor and a second output path defined by the second external inductor and the second internal inductor.
    Type: Grant
    Filed: April 6, 2021
    Date of Patent: October 17, 2023
    Assignee: Maxim Integrated Products, Inc.
    Inventors: Qingsheng Tan, James Cong Nguyen, Ashok K. Verma
  • Patent number: 11769442
    Abstract: Provided is a light-emitting display apparatus including a display panel configured to display an image, a driving circuit configured to drive the display panel, a timing controller configured to control the driving circuit, and a compensation circuit configured to correct an accumulation period difference of accumulated data to compensate deterioration of an element included in the display panel based on fluctuation of a driving frequency for driving the display panel.
    Type: Grant
    Filed: August 24, 2022
    Date of Patent: September 26, 2023
    Inventor: Seung Ju Jo
  • Patent number: 11741867
    Abstract: A display device includes a display panel including a plurality of sub pixels, a deterioration compensating unit configured to compensate for a deteriorated sub pixel based on a sensing voltage inputted from the display panel and dimming the plurality of sub pixels responsive to the compensation, and a memory configured to store a lookup table, the lookup table including gain, deterioration compensating timing, and target luminance.
    Type: Grant
    Filed: December 17, 2021
    Date of Patent: August 29, 2023
    Assignee: LG Display Co., Ltd.
    Inventor: Won-Hee Lee
  • Patent number: 11741889
    Abstract: A display device includes: a pixel component including pixels; a timing controller, which generates adjusted image data by converting grayscale values of input image data based on a gain value and generates first and second control signals control signal in response to an input control signal; a scan driver, which supplies a scan signal to the pixels in response to the first control signal; a data driver, which generates a data signal corresponding to the adjusted image data and supplies the data signal to the pixels based on the second control signal and the adjusted image data, and an image controller, which analyzes an input image in the input image data and gradually decreases the gain value during a first control period when the input image is a still image.
    Type: Grant
    Filed: August 29, 2022
    Date of Patent: August 29, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jang Mi Lee, Ki Hyun Pyun, Hyun Joo Seo
  • Patent number: 11737326
    Abstract: A display device includes a first active pattern disposed on a substrate, a first gate electrode disposed on the first active pattern, a second active pattern disposed on the first gate electrode, being electrically connected to the first gate electrode, and including an extension part extending in a first direction and a protrusion part protruding from the extension part in a second direction crossing the first direction, and a voltage line disposed on the second active pattern, extending in the first direction, and overlapping the protrusion part in an overlapping region. The voltage line contacts the protrusion part through a first contact, and the first contact entirely overlaps the overlapping region on a plane.
    Type: Grant
    Filed: March 23, 2021
    Date of Patent: August 22, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seung-Hwan Cho, Wonsuk Choi, Tetsuhiro Tanaka, Jiryun Park, Seokje Seong, Seungwoo Sung, Jiseon Lee
  • Patent number: 11705073
    Abstract: The present disclosure relates to a DRD type display panel. The display panel includes first to fourth pixels; a first data line through which a data signal is transmitted to the first and second pixels; a second data line through which a data signal is transmitted to the third and fourth pixels; a first gate line through which a scan signal is transmitted to the first and third pixels; a second gate line through which a scan signal is transmitted to the second and fourth pixels; a reference voltage line used to detect deterioration of OLEDs in the first to fourth pixels; a first power line positioned on the left of the first data line and supplying driving power to the first and second pixels; and a second power line positioned on the right of the second data line and supplying driving power to the first and second pixels.
    Type: Grant
    Filed: December 15, 2020
    Date of Patent: July 18, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Hyung-Seok Seo, Young-Hoon Kim
  • Patent number: 11676537
    Abstract: Provided is a pixel driving circuit, a display panel and a display apparatus. The pixel driving circuit includes: driving transistor having gate electrode connected to first node, first electrode connected to second node, and second electrode electrically connected to third node coupled to light emitting element; storage capacitor connected to the first node; and M first transistors having M first and second electrodes connected to the first node M functional signal terminals, respectively, M?1. A driving cycle of the pixel driving circuit includes light-emitting stage and N non-light-emitting stages, N?M. The M first transistors are respectively turned on in the N non-light-emitting stages, and the M first transistors are all turned off in the light-emitting stage. One of the N non-light-emitting stages includes first non-light-emitting stage adjacent to the light-emitting stage.
    Type: Grant
    Filed: June 10, 2022
    Date of Patent: June 13, 2023
    Assignees: WUHAN TIANMA MICROELECTRONICS CO., LTD., Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch
    Inventors: Mengmeng Zhang, Xingyao Zhou, Yue Li, Jian Kuang, Yuantao Wu
  • Patent number: 11663963
    Abstract: A pixel circuit includes a light emitting element, a first local light emitting switch, a second local light emitting switch, a common light emitting switch, and a driving block. The light emitting element has a first light emitting part and a second light emitting part. The first local light emitting switch is coupled between a first power terminal and the driving block. The second local light emitting switch is coupled between a second power terminal and the driving block. The common light emitting switch is coupled between the driving block and the light emitting element. The driving block provides a first driving current and a second driving current to the first light emitting part and the second light emitting part respectively based on a first frame gate signal and a second frame gate signal; a direction of the first driving current is different from that of the second driving current.
    Type: Grant
    Filed: August 3, 2022
    Date of Patent: May 30, 2023
    Assignee: AUO Corporation
    Inventors: Ya-Ling Hsu, Peng-Bo Xi
  • Patent number: 11574988
    Abstract: An organic light emitting diode display includes a substrate, a scan line on the substrate for transferring a scan signal, a data line crossing the scan line and for transferring a data signal, a driving voltage line crossing the scan line and for transferring a driving voltage, a switching thin film transistor coupled to the scan line and the data line, a driving thin film transistor coupled to a switching drain electrode of the switching thin film transistor, and an organic light emitting diode (OLED) coupled to a driving drain electrode of the driving thin film transistor, wherein a driving semiconductor layer of the driving thin film transistor is bent and in a plane substantially parallel to the substrate.
    Type: Grant
    Filed: April 19, 2021
    Date of Patent: February 7, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Se-Ho Kim, Jin-Woo Park, Won-Se Lee
  • Patent number: 11515481
    Abstract: A composition for forming organic film, a display device utilizing the composition, and a method of manufacturing the display device are provided. The composition for forming an organic film includes a solvent; and a compound of Formula 1: ArR)k.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: November 29, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Se Hun Kim, Chang Woong Chu, Duk Ki Kim, Dong Woo Shin, Jae Kook Ha
  • Patent number: 11436963
    Abstract: The present disclosure discloses a source driver including a level shift circuit. The source driver may include a level shift circuit outputting second and third logic signals by shifting a level of a first logic signal and a multiplexer transferring a first or second source signal to a first or second pad in response to the second and third logic signals. The level shift circuit may include a first level shifter outputting first and second input signals by shifting the level of the first logic signal, a second level shifter outputting third and fourth input signals by shifting the level of the first logic signal, and an output circuit outputting the second logic signal in response to the second and fourth input signals and outputting the third logic signal in response to the first and third input signals.
    Type: Grant
    Filed: March 17, 2021
    Date of Patent: September 6, 2022
    Assignee: Silicon Works Co., Ltd
    Inventors: Goon Seok Oh, Hyo Joong Kim
  • Patent number: 11398190
    Abstract: A display driving method, a display driving device and a display module are provided. The display driving method includes: during each delay cycle, controlling a first light-emission control signal to be delayed by a predetermined duration from a second light-emission control signal, the predetermined duration corresponding to the delay cycle. The first light-emission control signal is a light-emission control signal outputted by each light-emission control line during an (n+1)-th frame of display time period in the delay cycle, and the second light-emission control signal is a light-emission control signal outputted by the corresponding light-emission control line during an n-th frame of display time period in the delay cycle. Each delay cycle includes N frames of display time periods, N is a positive integer greater than a first predetermined number, and n is a positive integer less than N.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: July 26, 2022
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lixia Shen, Yong Yu, Zhiguang Zhang, Taehyun Kim, Chang Zhang
  • Patent number: 11367394
    Abstract: A display device includes a plurality of sub-pixels. Each sub-pixel includes a light-emitting element, a write transistor connected to a data signal line, and a drive transistor that controls a current that flows through the light-emitting element. The plurality of sub-pixels arranged along a first data signal line include adjacent sub-pixels that emit different colors of light, and each include the write transistor having a conduction terminal electrically connected to the first data signal line. The plurality of sub-pixels arranged along a second data signal line include adjacent sub-pixels that emit different colors of light, and each include the write transistor having a conduction terminal electrically connected to the second data signal line.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: June 21, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Shigetsugu Yamanaka
  • Patent number: 11367401
    Abstract: Disclosed is a method for driving a display, comprising the steps of: turning on one scan line from among a plurality of scan lines so as to drive a pixel connected to the scan line through a plurality of source lines; and turning off the scan line, and then turning on a scan line spaced apart from the scan line with at least one column there between, so as to drive a pixel connected to the scan line through a plurality of source lines.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: June 21, 2022
    Inventor: Taehyun Kim
  • Patent number: 11348535
    Abstract: A display control method, a display control module and a display device. The display control method is applied for a display device with a display panel and a data processing circuit, and includes: according to a to-be-displayed picture, detecting, by a black-screen area detection circuit, a black-screen display area of the display panel in an always-on mode; controlling, by a logic control circuit, to stop providing display data corresponding to the black-screen display area, for the data processing circuit. The display data corresponding to the black-screen display area included in the to-be-displayed picture is black-screen display data.
    Type: Grant
    Filed: May 28, 2021
    Date of Patent: May 31, 2022
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chenghao Liao, Chungkee Cheng, Guoqiang Wu, Lei Feng
  • Patent number: 11335244
    Abstract: Disclosed are a display panel and a display device. The display panel includes multiple sub-pixels disposed on a side of a base substrate and multiple first electrode connecting pieces and second electrode connecting pieces. Each sub-pixel includes a pixel driving circuit and an LED element. At least part of adjacent rows of sub-pixels are provided with multiple spare LED element setting regions, the spare LED element setting regions being disposed on at least one side of each row of sub-pixels, and/or at least part of adjacent columns of sub-pixels are provided with the multiple spare LED element setting regions, the spare LED element setting regions being disposed on at least one side of each column of sub-pixels. Two adjacent sub-pixels on two sides of a spare LED element setting region are respectively a first sub-pixel and a second sub-pixel.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: May 17, 2022
    Assignee: XIAMEN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Ting Wang, Hongbo Zhou, Huangyao Wu
  • Patent number: 11328669
    Abstract: Embodiments of the present disclosure provide a pixel driving circuit and a driving method thereof, a display panel and a display device.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: May 10, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Wei Qin, Xiaolong Li, Kuanjun Peng, Chunfang Zhang, Zhiqiang Xu, Yanan Niu
  • Patent number: 11308883
    Abstract: In an example implementation according to aspects of the present disclosure, a system including a controller to receive a temperature value, from a temperature sensor corresponding to a sub-pixel in an organic light emitting display. The controller calculates a luminous value of the sub-pixel based on the temperature value and a function corresponding to a degradation of luminosity over time and temperature. The controller determines, based on the luminous value, a corrected luminous value corresponding to a target luminous value. The controller retrieves a voltage value from a second database, wherein the second database comprises a luminous-voltage relationship. The controller applies the voltage value to the sub-pixel.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: April 19, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Hsing-Hung Hsieh, Cheng-Hua Yu, Ann Alejandro Villegas
  • Patent number: 11308862
    Abstract: A scan display system includes a picture receiving unit, a scan needle, a picture display screen having first and second opposing surfaces, and a driving unit. The picture receiving unit is configured to receive picture data and transmit the picture data to the scan needle. The driving unit is configured to perform a picture scanning process by moving the scan needle to scan in a vertical direction relative to the first surface of the picture display screen at a predetermined frequency. The scan needle is configured to emit light, representative of the picture data, to the first surface of the picture display screen to project image lines, each image line being projected by the scan needle during the scan. The picture display screen is configured to receive the emitted light on the first surface and display an image comprising the image lines on the second surface.
    Type: Grant
    Filed: August 5, 2020
    Date of Patent: April 19, 2022
    Assignee: JADE BIRD DISPLAY (SHANGHAI) LIMITED
    Inventors: Qunchao Xu, Qiming Li
  • Patent number: 11289023
    Abstract: A pixel driver circuit and a display panel are provided. The pixel driver circuit includes a control transistor, a first transistor, a fourth transistor, a light emitting device. A gate electrode of the control transistor receives first control signals, a source electrode of the control transistor receives data signals. A drain electrode of the control transistor is connected to a gate electrode of the first transistor and a gate electrode of the fourth transistor. A source electrode of the first transistor receives first power signals. A source electrode of the fourth transistor receives second power signals. Drain electrodes of the first transistor and fourth transistor are connected to an anode of the light emitting device. The first transistor and fourth transistor correspond to a first driving time period and a second driving time period alternated. The pixel driver circuit and display panel of the present invention enhance display effect.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: March 29, 2022
    Assignee: Shenzhen China Star Optoeleetronies Semiconductor Display Technology Co., Ltd.
    Inventors: Liuqi Zhang, Baixiang Han
  • Patent number: 11257429
    Abstract: A pixel circuit including an organic light-emitting element, a switching transistor, a storage capacitor that stores a data signal applied via a data line, a driving transistor that allows a driving current corresponding to the data signal to flow into the organic light-emitting element, an emission control transistor electrically connected to the organic light-emitting element and the driving transistor in series, and sync transistors electrically connected to a bottom metal electrode of the driving transistor. The sync transistors include a first sync transistor electrically connected to a first one selected from a source electrode of the driving transistor, a gate electrode of the driving transistor, the high power voltage, and the low power voltage and a second sync transistor electrically connected to a second one selected from the source electrode of the driving transistor, the gate electrode of the driving transistor, the high power voltage, and the low power voltage.
    Type: Grant
    Filed: January 5, 2020
    Date of Patent: February 22, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventor: Young-Cheol Jeong
  • Patent number: 11238798
    Abstract: An organic light emitting display is capable of reducing variation in power transmitted to pixels to reduce or prevent non-uniformity of brightness from being generated. The organic light emitting display includes a pixel including a red sub pixel, a green sub pixel, and a blue sub pixel and first pixel power source lines for supplying a first pixel power from a first pixel power source to the red sub pixel, the green sub pixel, and the blue sub pixel, wherein the first pixel power source lines coupled to at least two different color sub pixels of the red, green and blue sub pixels have different widths. The first pixel power source lines have widths that may correspond to a voltage drop of the first pixel power source or may correspond to deterioration of the respective sub pixels to which they are coupled.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: February 1, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventor: Young-In Hwang
  • Patent number: 11232748
    Abstract: A display may have an array of pixels each of which has a light-emitting diode such as an organic light-emitting diode. A drive transistor and an emission transistor may be coupled in series with the light-emitting diode of each pixel between a positive power supply and a ground power supply. The pixels may include first and second switching transistors. A data storage capacitor may be coupled between a gate and source of the drive transistor in each pixel. Signal lines may be provided in columns of pixels to route signals such as data signals, sensed drive currents from the drive transistors, and predetermined voltages between display driver circuitry and the pixels. The switching transistors, emission transistors, and drive transistors may include semiconducting-oxide transistors and silicon transistors and may be n-channel transistors or p-channel transistors.
    Type: Grant
    Filed: April 5, 2021
    Date of Patent: January 25, 2022
    Assignee: Apple Inc.
    Inventors: Chin-Wei Lin, Hung Sheng Lin, Shih Chang Chang, Shinya Ono
  • Patent number: 11209854
    Abstract: A constant current driving circuit and a corresponding photoelectric smoke alarm circuit are provided. The constant current driving circuit includes a reference voltage source module (1), a linear voltage regulator module (3), a level conversion module (2), a current mirror module (4) and a first NMOS transistor. The linear voltage regulator module (3) may control turning on and turning off thereof according to actual requirements, thus electrical energy loss may effectively be reduced for some periodically used devices. The constant current driving circuit and the corresponding photoelectric smoke alarm circuit may provide a constant current source, so that auxiliary output performance remains stable within a full temperature range, a certain timing sequence requirement is met, no standby power is consumed when not working, performance is stable, power consumption is low, and application range is wide.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: December 28, 2021
    Assignee: CRM ICBG (WUXI) CO., LTD.
    Inventors: Yujie Zhou, Jieqiong Zneg, Tianshun Zhang, Zengwei Ding
  • Patent number: 11205380
    Abstract: A pixel including: a light-emitting element; a first transistor including a first electrode coupled to a power source and a second electrode coupled to the light-emitting element; a first capacitor between a second and a third node; a second transistor between the third node and a data line and turned on by a scan signal; a third transistor between a first node and the second node and turned on by a first control signal; a fourth transistor between the power source and the third node and turned on by a second control signal; a fifth transistor between the power source and the first electrode of the first transistor and turned on by an emission control signal; a sixth transistor between the second node and the light-emitting element and turned on by a previous emission control signal; and a second capacitor between the power source and the first node.
    Type: Grant
    Filed: April 20, 2020
    Date of Patent: December 21, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jun Hyun Park, Bon Yong Koo, Yu Jin Lee, Kyung Hoon Chung, Chong Chul Chai
  • Patent number: 11158282
    Abstract: A driving circuit of a display panel includes a trigger circuit, a current limiting circuit, and first and second switch circuits. A preset voltage and a first voltage are input the trigger circuit. The current limiting circuit is electrically connected to a power source. The first switch circuit is electrically connected to the trigger circuit and the current limiting circuit separately. The first switch circuit is electrically connected to a driving chip and the display panel (320). The second switch circuit (400) is electrically connected to the trigger circuit and the current limiting circuit separately. An output terminal of the second switch circuit is electrically connected to the display panel.
    Type: Grant
    Filed: November 23, 2018
    Date of Patent: October 26, 2021
    Assignee: HKC Corporation Limited
    Inventor: Xiaoyu Huang
  • Patent number: 11145231
    Abstract: A test circuit and a display device are provided. The test circuit includes N first test pads, N second test pads, a first test circuit, a switching circuit, and a control circuit. The first test circuit is configured to output a plurality of test signals to the test pads. The control circuit outputs a control signal to the switching circuit to control the N first switching circuits to be individually turned on simultaneously, or control the N second switching circuits to be individually turned on simultaneously, thereby a one-side test of the display panel is achieved. Working states of the N first data lines or the N second data lines are determined according to a brightness of the display panel.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: October 12, 2021
    Assignees: HKC CORPORATION LIMITED, CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Peixin Lin
  • Patent number: 11112071
    Abstract: An LED module may include at least one LED and an indicator. The indicator may include one or more diffusing surfaces defining an angular diffusing groove. The diffusing groove may receive the LED such that the LED is at least partially located within a volume space defined by the one or more diffusing surfaces. The diffusing groove may diffuse a light emitted from the LED and incident on the one or more diffusing surface of the diffusing groove such that the light is diffused into an interior of the indicator.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: September 7, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seongyun Baek, Jaehong Park, Yusuf Cinar, Hanhong Lee
  • Patent number: 11100865
    Abstract: A display panel includes a substrate and a plurality of pixels arranged on the substrate, and the pixel includes a plurality of sub pixels, and a driving circuit. The sub pixel includes a first electrode layer on the substrate, a light-emitting layer on the first electrode layer, and a second electrode layer on the light-emitting layer. The driving circuit is arranged between the substrate and the first electrode layer, and electrically coupled with the sub pixels. The driving circuit includes a driving control module and a drive line electrically coupled with the driving control module. The driving control module is arranged below a part of the sub pixels electrically coupled with the driving circuit, and the drive line is electrically coupled with the sub pixels, respectively.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: August 24, 2021
    Assignee: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
    Inventors: Tsangchih Wu, Yung Chi Wen
  • Patent number: 11100862
    Abstract: A display panel includes: a substrate; a first pixel arranged over the substrate and including a first transistor and a first display element electrically connected to the first transistor; and a first bottom layer arranged between the substrate and the first transistor, wherein the first bottom layer has a first voltage in a first period and has a second voltage in a second period different from the first period. The first and second voltages differ from one another.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: August 24, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Youngcheol Jeong
  • Patent number: 11094271
    Abstract: Disclosed is a driving circuit, comprising an energy storage circuit, a first circuit, a current limiting circuit, a first switching circuit, and a second switching circuit. A first preset voltage and a second preset voltage are input by means of the first circuit. The first circuit is electrically connected to the energy storage circuit. The current limiting circuit is electrically connected to a power supply. The first switching circuit is separately electrically connected to the first circuit and the current limiting circuit. The first switching circuit is electrically connected to output ends of a display panel and a driving chip. The second switching circuit is electrically connected to the first circuit and the current limiting circuit. An output end of the second switching circuit is electrically connected to the display panel. Also provided is a display device.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: August 17, 2021
    Assignee: HKC Corporation Limited
    Inventor: Xiaoyu Huang
  • Patent number: 11087679
    Abstract: A pixel and a display device including the same. The pixel includes: a pixel circuit configured to control the amount of current to be supplied to an organic light-emitting diode in response to a data signal provided from a data line; and a light sensor circuit coupled between the data line and the pixel circuit and configured to control the amount of current to be supplied to the pixel circuit in response to incident light.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: August 10, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae Keun Lim, Jeong Kyoo Kim, Dong Won Lee
  • Patent number: 11087675
    Abstract: A display device that can display a high-luminance image is provided. The display device includes a display element and a memory circuit which is electrically connected to a first wiring and a second wiring. First, a reference potential is supplied to the first wiring. Next, a first image signal is supplied to the memory circuit through the second wiring. Then, the second image signal is added to the first image signal by supplying the second image signal to the memory circuit through the first wiring. After that, an image obtained by superimposing an image corresponding to the first image signal and an image corresponding to the second image signal on each other is displayed with the display element.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: August 10, 2021
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Susumu Kawashima, Koji Kusunoki, Kazunori Watanabe, Kouhei Toyotaka, Kei Takahashi, Kentaro Hayashi, Shunpei Yamazaki
  • Patent number: 11081055
    Abstract: Disclosed are an active matrix-based electronic apparatus and a method of driving the same. More particularly, a pixel circuit of an electronic apparatus according to an embodiment of the present disclosure may include a light-emitting driver configured to apply a forward bias to a light-emitting device in an emission mode to control light to be emitted through the light-emitting device; a sensing driver configured to apply a non-forward bias to the light-emitting device in a sensing mode to control an electrical signal corresponding to light incident on the light-emitting device to be generated; and a reader configured to read intensity of light corresponding to the generated electrical signal.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: August 3, 2021
    Assignee: UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
    Inventors: Seung-Woo Lee, Jongbin Kim, Woo Rim Lee
  • Patent number: 11043167
    Abstract: An organic light emitting diode display with improved aperture ratio includes: a substrate; first and second pixels disposed in a first row of the substrate and third and fourth pixels disposed in a second row adjacent to the first row and respectively disposed in the same columns as the first and second pixels; a scan line and a previous scan line applying a scan signal and a previous scan signal, respectively, to the pixel units; a data line and a driving voltage line applying a data signal and a driving voltage, respectively, to the pixel units; and a common initialization voltage line disposed between the first and second pixels and between the third and fourth pixels, commonly connected to the pixel units, and applying an initialization voltage. One common initialization contact hole connected to all pixels units and one initialization voltage line connected to the common initialization contact hole are surrounded by the pixel units.
    Type: Grant
    Filed: April 14, 2020
    Date of Patent: June 22, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ju-Hee Hyeon, Hyun-Chol Bang
  • Patent number: 11037488
    Abstract: Disclosed are a pixel driver circuit, a display panel, a display device, and a driving method. The pixel driver circuit includes a data write module, a storage module, a first potential adjustment module, a second potential adjustment module, a comparison module, and a light emission control module. The data write module is configured to write a data signal into a first node at a first stage. The first potential adjustment module and the second potential adjustment module are configured to adjust a potential of a second node at a second stage and at a third stage, causing the comparison module to output a first control signal and a second control signal to the light emission control module at the second stage and at the third stage, respectively. The light emission control module is configured to control the light emission control module to be turned off and turned on according to the first control signal and the second control signal, respectively.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: June 15, 2021
    Assignee: Xiamen Tianma Micro-Electronics Co., Ltd.
    Inventors: Ting Wang, Hongbo Zhou, Huangyao Wu
  • Patent number: 11004390
    Abstract: A display panel including pixels disposed on a substrate, where each of the pixels includes a light emitting element, and a capacitor. The capacitor of a first one of the pixels is partially overlapped, in a vertical direction, by respective pixel areas of two of the pixels. The anode of the capacitor of the first one of the pixels may be disposed closer to the substrate than a cathode of the capacitor, thereby reducing a parasitic capacitance between the capacitor and an anode of the light emitting element of one of the two pixels overlapping the capacitor.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: May 11, 2021
    Assignee: Sony Corporation
    Inventors: Mitsuru Asano, Yukihito Iida
  • Patent number: 10991309
    Abstract: A light emitting element display device with a narrow frame and high light emission efficiency is provided even when high definition is achieved. The light emitting element display device includes: a light emitting element which emits light at each of a plurality of subpixels forming one pixel; a drive transistor in which one of a source and a drain is connected to an anode of the light emitting element; and an output control circuit which selectively sets the other of the source and the drain of the drive transistor into one of a state of being connected to a power-supply voltage, a state of being connected to a reset voltage that is a lower voltage than the power-supply voltage, and a high-impedance state of not being connected to any of these voltages.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: April 27, 2021
    Assignee: Japan Display Inc.
    Inventors: Hiroyuki Kimura, Seiichiro Jinta
  • Patent number: 10978630
    Abstract: A thermal control system includes a component having a surface. A plurality of thermal generating devices include a first conductive plate, second and third conductive plates, a first semiconductor device arranged between the first conductive plate and the second conductive plate, and a second semiconductor device arranged between the first conductive plate and the third conductive plate. The first semiconductor device and the second semiconductor device have different types of doping. First ones of the plurality of thermal generating devices are arranged with the first conductive plate located adjacent to the surface of the component. Second ones of the plurality of thermal generating devices are arranged with the second and third conductive plates located adjacent to the surface of the component. The first ones and the second ones of plurality of thermal generating devices perform heating and cooling of the surface, respectively.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: April 13, 2021
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Dorel M. Sala, Paul W. Alexander, Nancy L. Johnson
  • Patent number: 10977988
    Abstract: Provided is a display device including a display panel, a power delivery network (PDN), an image controller, and a PDN controller. The display panel may include a plurality of sub-panels. The PDN may be controlled by a control signal, respectively deliver voltages determined by the control signal to the plurality of sub-panels, and generate state information for determining the control signal. The image controller may receive to store frame image data, determine a number of frames to be integrated according to a window size, and integrate the frame image data of frames in the determined number into one image to generate integrated image data. The PDN controller may generate the control signal and a size adjusting signal based on the state information and the integrated image data, provide the generated control signal to the PDN, and may provide the generated size adjusting signal to the image controller. The size adjusting signal may adjust the window size.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: April 13, 2021
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Woo Joo Lee, Suk Ho Lee, Kyung Jin Byun, Nak Woong Eum
  • Patent number: 10971570
    Abstract: A display device includes a display layer, at least one brightness detecting unit group disposed on a light emitting side of the display layer, and a control module coupled to each of the brightness detecting units. The display layer includes a plurality of display units. Each display unit includes at least one sub-pixel. Each brightness detecting unit group includes a plurality of brightness detecting units, an orthographic projection of one brightness detecting unit on the display layer has an overlapping area with an arranging area of one display unit on the display layer. Respective portions, lying in overlapping areas, of the display units corresponding to different brightness detecting units in the same brightness detecting unit group are the same.
    Type: Grant
    Filed: May 15, 2019
    Date of Patent: April 6, 2021
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Libin Liu, Hao Zhang, Renrong Gai
  • Patent number: 10930875
    Abstract: An organic light-emitting display apparatus including: a first electrode of a first group; a first organic functional layer covering the first electrode of the first group and including a first emission layer; a second electrode of the first group covering the first organic functional layer; a first electrode of a second group separate from the first electrode of the first group; a second organic functional layer separate from the first organic functional layer, covering the first electrode of the second group, having a larger area than the first organic functional layer, and including a second emission layer; a second electrode of the second group covering the second organic functional layer; and a common electrode integrally and commonly disposed on the second electrode of the first group and the second electrode of the second group.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: February 23, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Duckjung Lee, Arong Kim, Jungsun Park, Hyunsung Bang, Jiyoung Choung
  • Patent number: 10873182
    Abstract: This application relates to an electrostatic discharge (ESD) protection circuit, includes: a first switch, electrically coupled to a first node through a control end, electrically coupled to a ground node through a first end, and electrically coupled to a signal input node through a second end; a capacitor electrically coupled between the first node and the signal input node; a second switch, electrically coupled to a low level line through a control end and a first end, and electrically coupled to the signal input node through a second end; and a third switch, electrically coupled to a high level line through a control end, and electrically coupled to the first node through a first end, being electrically coupled to the low level line through a second end.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: December 22, 2020
    Assignee: HKC CORPORATION LIMITED
    Inventor: Huailiang He