Patents Examined by Dorothy Harris
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Patent number: 11688343Abstract: In a pixel driving circuit, a compensation sub-circuit is respectively coupled to a first control terminal, a control terminal and a second terminal of the driving sub-circuit; a first terminal of the first coupling sub-circuit is coupled to the control terminal of the driving sub-circuit; a first terminal of the second coupling sub-circuit is coupled to a second terminal of the first coupling sub-circuit; a first reset sub-circuit is respectively coupled to a second control terminal, the control terminal of the driving sub-circuit and an initialization signal output terminal; a second reset sub-circuit is respectively coupled to a third control terminal, a second terminal of the first coupling sub-circuit and the first level signal output terminal; a first light emitting control sub-circuit is respectively coupled to a light emitting control terminal, a second terminal of the second coupling sub-circuit and a reference signal output terminal.Type: GrantFiled: January 27, 2021Date of Patent: June 27, 2023Assignee: BOE Technology Group Co., Ltd.Inventors: Can Zheng, Jianchao Zhu, Lujiang Huangfu, Libin Liu, Shiming Shi
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Patent number: 11682350Abstract: According to one exemplary embodiment of the present disclosure, the electroluminescent display panel may include a plurality of pixels arranged along a row direction and a column direction, an emission line transmitting an emission signal to the plurality of pixels arranged along the row direction and an emission driving circuit providing an emission signal to the plurality of pixels. The emission driving circuit includes a plurality of emission stages wherein the number of emission stages is more than the number of the plurality of pixels arranged along the column direction. Therefore, the pulse width resolution of the display panel may be enhanced and the low gradation stain may be reduced.Type: GrantFiled: February 17, 2022Date of Patent: June 20, 2023Assignee: LG Display Co., Ltd.Inventors: Jaesung Yu, Jungsoo Park, Sewan Lee
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Patent number: 11676537Abstract: 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: GrantFiled: June 10, 2022Date of Patent: June 13, 2023Assignees: WUHAN TIANMA MICROELECTRONICS CO., LTD., Wuhan Tianma Microelectronics Co., Ltd. Shanghai BranchInventors: Mengmeng Zhang, Xingyao Zhou, Yue Li, Jian Kuang, Yuantao Wu
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Patent number: 11676520Abstract: The present disclosure relates to a technology for a power management device applied to a display device, in which driving voltages having different levels are supplied to driving devices having different sizes of load in different times, and this allows all of the driving devices to stably receive voltages within a limited range even though the number of driving devices increases according to the enlargement of a display panel.Type: GrantFiled: August 20, 2021Date of Patent: June 13, 2023Assignee: SILICON WORKS CO., LTD.Inventors: Geon Soo Jang, Hyung Sub Kim, Jung Hyun Tark
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Patent number: 11670213Abstract: A display panel includes: a plurality of light emitting signal lines. Under a control of switching signals provided from a plurality of switching signal lines and control signals provided from a plurality of control signal lines, working gray scale level signals corresponding to respective display gray scales are written to corresponding sub-pixels in an order from small to large in working gray scale sequentially by a plurality of times in one frame display time through the plurality of light emitting signal lines. Different working gray scale level signals indicate have different durations, and each of the working gray scale level signals is provided to the organic light emitting diode via the second transistor through a light emitting signal line, and a final display gray scale is a gray scale caused by superimposing different working gray scale level signals.Type: GrantFiled: December 18, 2020Date of Patent: June 6, 2023Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Lijun Yuan, Can Zhang, Ning Cong, Can Wang, Jinfei Niu, Minghua Xuan
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Patent number: 11670220Abstract: A pixel circuit includes a compensating circuit which can adjust an electric potential of a second control node (a gate of a transistor controlling conduction or non-conduction between a first connection node and a second connection node) based on an electric potential of a first control node, and can adjust an electric potential of the second control node based on an electric potential of the second connection node. A method for driving a pixel circuit, a display substrate, and a display device is also provided.Type: GrantFiled: December 28, 2020Date of Patent: June 6, 2023Assignees: Beijing BOE Display Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Ning Cong, Minghua Xuan, Can Zhang, Ming Yang, Can Wang, Lijun Yuan
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Patent number: 11670391Abstract: A shift register includes: an input circuit transmitting a first signal to a first node in response to a first clock signal and a second signal, transmitting the second signal to the first node in response to the first clock signal and the first signal; a first control circuit transmitting the first clock signal to a second node in response to the first node, transmitting a first voltage to the second node in response to the first clock signal; a second control circuit transmitting a second voltage to a third node in response to the first node, transmitting a second clock signal to the third node in response to the second node and the second clock signal; an output circuit transmitting the first voltage to a signal output terminal in response to the first node, transmitting the second voltage to the signal output terminal in response to the third node.Type: GrantFiled: September 28, 2020Date of Patent: June 6, 2023Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Li Wang, Guangliang Shang
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Patent number: 11662856Abstract: Examples are disclosed relating to computing devices and methods for performing capacitive touch detection in rotatably coupled displays. In one example, a method comprises: in a first display, providing a first signal at a first frequency to a first drive electrode in a first frequency region abutting a first non-coupled side opposite to a first coupled side. Other signals at other frequencies are provided to other drive electrodes in other frequency regions. In a second display, a second signal at the first frequency is provided to a second drive electrode located in a different first frequency region abutting a second coupled side opposite to a second non-coupled side. The other frequency regions of the first display are positioned between the first frequency region and the different first frequency region, thereby spatially separating the first frequency region from the different first frequency region.Type: GrantFiled: September 9, 2021Date of Patent: May 30, 2023Assignee: Microsoft Technology Licensing, LLCInventors: Gilad Pundak, Zvika Zmiri, Anton Gorbanev, Matan Slassi, Dmitry Birenberg
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Patent number: 11657748Abstract: A display control method includes: in response to a display area of a display device being divided into multiple display sub-areas, controlling outputs from the multiple display sub-areas at corresponding refresh rates. The refresh rates of different display sub-areas can be the same or different.Type: GrantFiled: December 15, 2021Date of Patent: May 23, 2023Assignee: LENOVO (BEIJING) CO., LTD.Inventor: Zhengliu Lu
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Patent number: 11650703Abstract: An object of the present invention is to provide a technique for providing a detection function of detecting that an external approaching object approaches a sensor region of a touch sensor, without increasing an area of the touch sensor and making a circuit complex. According to an aspect, a display device includes a first detection electrode that detects a position of an external approaching object within a detection surface, and plural second detection electrodes that detect that the external approaching object approaches the detection surface. The second detection electrodes extend in a second direction and are arranged in a first direction intersecting the second direction. The second detection electrodes overlap the first detection electrode in a plan view.Type: GrantFiled: May 13, 2020Date of Patent: May 16, 2023Assignee: Japan Display Inc.Inventors: Takaaki Kono, Yoshio Owaki, Makoto Hayashi, Hiroyuki Miyake
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Patent number: 11636793Abstract: Embodiments of the present disclosure provide a method of driving display, and a display device. The method of driving display includes: scanning, progressively or rows by rows, a plurality of sub-pixels arranged in an N×M array, to turn on each row of sub-pixels scanned, so that a duration in which two adjacent rows of sub-pixels are simultaneously in an ON state is greater than or equal to two times a unit scanning time, wherein the unit scanning time is a time required for scanning a row of sub-pixels, N is an integer greater than 1, and M is an integer greater than 1; and applying data signals to at least two rows of sub-pixels simultaneously in the ON state, so that a duration of applying the data signals to each row of sub-pixels is greater than the unit scanning time.Type: GrantFiled: June 8, 2021Date of Patent: April 25, 2023Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Zhihua Sun, Yinlong Zhang, Qiujie Su, Feng Qu, Jing Liu, Yanping Liao, Xibin Shao
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Patent number: 11620944Abstract: The present invention relates to an organic light emitting diode display device which minimizes a temperature increase of an organic light emitting panel in consideration of an input image and an external environment, the organic light emitting diode display device comprising: an organic light emitting panel; a power supply unit for supplying a current to the organic light emitting panel; a control unit for performing an automatic current limit for controlling the maximum value of the current supplied to the organic light emitting panel to be less than or equal to the current limit value; and a temperature sensor for sensing the temperature of the organic light emitting panel, wherein the control unit may change the current limit value according to the present temperature of the organic light emitting panel.Type: GrantFiled: May 20, 2019Date of Patent: April 4, 2023Assignee: LG ELECTRONICS INC.Inventors: Seungkyu Park, Youngho Chun
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Patent number: 11620011Abstract: A display driving device capable of operating a source driver integrated circuit (IC) in a low power mode during a touch sensing period includes a source driver IC configured to operate in a first low power mode in which an analog data processing unit is deactivated or operate in a second low power mode in which both of the analog data processing unit and a digital data processing unit are deactivated, during a touch sensing period of a first frame; and a readout IC configured to supply touch sensor driving signals to touch sensors during the touch sensing period and receive touch sensing data from the touch sensors according to the touch sensor driving signals.Type: GrantFiled: July 6, 2021Date of Patent: April 4, 2023Assignee: SILICON WORKS CO., LTD.Inventors: Jong Min Park, Seong Sik Yoon, Jung Min Choi
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Patent number: 11614816Abstract: Sensing time of a touch sensor is shortened to increase responsiveness of touch sensing. A display device includes a gate driver, a plurality of touch sensors, and a plurality of touch wirings. The gate driver has a function of supplying a scan signal to the plurality of touch wirings at the same timing, and the touch sensors in different positions sense a plurality of touches at the same timing. In this manner, the responsiveness of touch sensing is increased. The gate driver has a function of controlling a scan signal for refreshing display and a scan signal used by the touch sensor for sensing.Type: GrantFiled: June 1, 2021Date of Patent: March 28, 2023Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Hiroyuki Miyake, Takahiro Fukutome
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Patent number: 11614622Abstract: The present invention relates to a head-mounted display system (1) for controlling a medical imaging device (20), comprising: a head-mounted display (10) to be worn by an operator, comprising a display (12) configured to display a medical image with a predetermined center of view (121) and a command menu (122) providing at least a first set of commands (123) as distinct first command fields, a tracking system (14) to track a movement representative of the operator's eye (30) and/or head movement, wherein a command of the at least first set of commands (122a) of the command menu (122) is selectable based on the tracked eye and/or head movement, and a control device (40) configured to receive a selected command and to control the medical imaging device (20) accordingly.Type: GrantFiled: January 11, 2021Date of Patent: March 28, 2023Assignee: BHS Technologies GmbHInventors: Michael Mair, Bernhard Höckner, Luis Fernando Ayuso Perez, Gregor Burger
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Patent number: 11615727Abstract: In an embodiment, an electronic device includes an electronic display. The electronic display provides a programmable latency period in response to receiving a first image frame corresponding to first image frame data. The electronic display also displays the first image frame after the programmable latency period and during display of the first image frame, receives a second image frame corresponding to second image frame data. The electronic display also repeats display of the first image frame in response to receiving the second image frame.Type: GrantFiled: February 24, 2022Date of Patent: March 28, 2023Assignee: Apple Inc.Inventors: Kevin W. Sliech, Jason N. Gomez, David A. Hartley, Chengrui Le, Paolo Sacchetto, Arthur L. Spence
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Patent number: 11615754Abstract: A display device includes: a first pixel transistor couples one electrode of holding capacitance to a first signal line; a second pixel transistor couples another electrode of the holding capacitance to a second signal line; a third pixel transistor couples the other electrode of the holding capacitance to a GND potential; and a driver that supplies a negative potential to the second signal line when the first signal line is supplied with a positive potential, supplies the GND potential to the second signal line when the first signal line is supplied with the GND potential, and supplies the positive potential to the second signal line when the first signal line is supplied with the negative potential. The first and second pixel transistors are on during a writing period and off during a holding period. The third pixel transistor is off during the writing period and on during the holding period.Type: GrantFiled: June 13, 2022Date of Patent: March 28, 2023Assignee: Japan Display Inc.Inventor: Gen Koide
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Patent number: 11610525Abstract: The present invention provides a driving circuit and a display panel including at least two gate driving units, and at least two of the gate driving units are connected in a cascade arrangement. an Nth stage driving unit in the at least two of the gate driving units includes a pull-up control module, a pull-up module, a pull-down module, a pull-down maintaining module, and a bootstrap capacitor, wherein N is an integer greater than 0.Type: GrantFiled: March 10, 2020Date of Patent: March 21, 2023Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Xiaowen Lv
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Patent number: 11605335Abstract: A pixel includes a switching transistor transmitting a data voltage to a first node, a storage capacitor electrically connected between a first power supply line and the first node and storing the data voltage, first and second driving transistors electrically connected to the first power supply line, the first node, and a second node, and first and second light emitting elements electrically connected between the second node and a second power supply line. An anode of the first light emitting element and a cathode of the second light emitting element are electrically connected to the second node, a cathode of the first light emitting element and an anode of the second light emitting element are electrically connected to the second power supply line, the first driving transistor is a P-type transistor, and the second driving transistor is an N-type transistor.Type: GrantFiled: February 25, 2020Date of Patent: March 14, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hyojin Lee, Sehyuk Park, Hui Nam
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Patent number: 11600229Abstract: A pixel includes a first capacitor connected between a first electrode and a second electrode connected to a first node, a first transistor including a gate electrode connected to the first node, a first electrode connected to a second node, and a second electrode connected to a third node, a second transistor including a gate electrode that receives a data write gate signal, a first electrode that receives a data voltage, and a second electrode connected to the second node, a third transistor connected between the first node and the third node, a fourth transistor connected between the first node and an initialization voltage input terminal to which an initialization voltage is applied, an eighth transistor t connected to the third transistor and the fourth transistor, and an organic light emitting diode including an anode and a cathode receiving a second power supply voltage.Type: GrantFiled: March 1, 2022Date of Patent: March 7, 2023Inventors: Hanbit Kim, Meejae Kang, Keunwoo Kim, Doo-Na Kim, Sangsub Kim, Dokyeong Lee, Jaehwan Chu