Patents Examined by Dong Hui Liang
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Patent number: 11423859Abstract: A display control apparatus includes a data driver, a timing controller, and a control circuit. The data driver a data output circuit that is configured to output data signals. The timing controller is configured to output data control signals that control the signal input of the data driver and include a frame start signal VS1 and a conventional signal VS2. The control circuit is electrically connected with the timing controller and the data output circuit (211), and is configured to input signals to the data output circuit according to the data control signals.Type: GrantFiled: November 28, 2018Date of Patent: August 23, 2022Assignee: HKC CORPORATION LIMITEDInventor: Mingliang Wang
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Patent number: 11417284Abstract: A sensing circuit includes a first input selecting circuit connected to a first sensing line and a second sensing line, a first path setting circuit that sets a path of a first sensing signal received from the first sensing line or a path of a second sensing signal received from the second sensing line, a second path setting circuit that sets a path of a sensing reference voltage, a first switch matrix connected to the first path setting circuit and the second path setting circuit, a first mode setting circuit connected to a first output terminal of the first switch matrix, a first common sensing amplifier connected to the first mode setting circuit, a second mode setting circuit connected to a second output terminal of the first switch matrix, and a second common sensing amplifier connected to the second mode setting circuit.Type: GrantFiled: September 7, 2021Date of Patent: August 16, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Sung Hwan Kim, Wook Lee, Hayong Jung
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Patent number: 11410615Abstract: A pixel driving circuit, a display panel and a display device are provided. The pixel driving circuit includes a first control module electrically connected to a first node. The first control module receives the first control signal and the first power voltage. The first control module is used to write the first power voltage into the first node under the control of the first control signal when the voltage of the first control signal is higher than the first predetermined threshold voltage. Because the first power voltage is written into the first node to control the lighting device to generate light when the first control signal is higher than the first predetermined threshold voltage, this could prevent the lighting device from generating the color shift. In this way, the requirement for the chip performance is comparatively low and thus the manufacturing cost is reduced.Type: GrantFiled: August 4, 2020Date of Patent: August 9, 2022Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventors: Huasheng Su, Jianhang Fu
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Patent number: 11404002Abstract: A pixel unit, a compensation method of the pixel unit, a display device and a manufacturing method of the display device are disclosed. The pixel unit includes a light-emitting circuit configured to emit light under control of an external control circuit, a photosensitive element configured to sense a light intensity of light emitted by the light-emitting circuit and to output a sensed light intensity signal by a sensing output terminal, and a switch circuit configured to control an ON/OFF state between the sensing output terminal and the external control circuit.Type: GrantFiled: February 28, 2019Date of Patent: August 2, 2022Assignee: BOE Technology Group Co., LTD.Inventors: Zhen Song, Guoying Wang
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Patent number: 11398192Abstract: A display device includes a display panel, a first memory, and a degradation compensator. The first memory device stores stress data including degradation values representing a degradation degree of each of the blocks in the display panel. The degradation compensator loads the stress data from the first memory device, updates the stress data based on current input data and a maximum degradation value, updates the maximum degradation value based on degradation values included in the updated stress data, and generate compensated data by compensating for the current input data based on the updated stress data. The degradation compensator determines whether a first degradation value included in the stress data is normal by comparing the first degradation value with the maximum degradation value, and updates the first degradation value based on at least one adjacent degradation value adjacent to the first degradation value, when the first degradation value is abnormal.Type: GrantFiled: July 9, 2021Date of Patent: July 26, 2022Inventors: Young Soo Sohn, Jong Man Kim, Bong Gyun Kang, Jae Woo Ryu, Sung Mo Yang
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Patent number: 11393401Abstract: A data driving circuit, controller, and display device include a compensation table for compensating for degradation of a light emitting subpixel. The compensation table may be generated or updated based on degradation of a dummy subpixel. The dummy subpixel is disposed in a non-active area, and has the same or similar characteristics to those of the light emitting subpixel as the display device is driven. Degree of degradation of the dummy subpixel may be sensed, and by degrading the dummy subpixel more rapidly than the light emitting subpixel, accuracy of sensing may be enhanced. The degradation compensation is performed in real time during driving of the display device, and is based on the compensation table generated or updated using the degree of degradation sensed on the dummy subpixel.Type: GrantFiled: October 14, 2021Date of Patent: July 19, 2022Assignee: LG Display Co., Ltd.Inventors: Seongmin Choi, Hyojung Park, SeungHyuck Lee
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Patent number: 11393364Abstract: A seamless splicing screen is provided. The seamless splicing screen includes a plurality of unit display modules spliced with each other. Each of the unit display modules includes a unit display area and a unit non-display area. In a first direction of the seamless splicing screen, unit display areas of any adjacent first unit display module and second unit display module are adjacent to each other. A back of the unit display area of the first unit display module has a hollowed out portion disposed away from an end of the unit non-display area, and the unit non-display area of the second unit display module is disposed in the hollowed out portion.Type: GrantFiled: November 4, 2019Date of Patent: July 19, 2022Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventors: Bei Jiang, Yong Fan
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Patent number: 11387300Abstract: A display apparatus includes a thin film transistor disposed in a display area of a substrate and a display device in the display area that is electrically connected to the thin film transistor, an encapsulation layer that protects the display device, at least one through portion formed in the display area that vertically penetrates the substrate and a plurality of layers stacked on the substrate, and a first groove and a second groove that are spaced apart from each other and that surround the at least one through portion. A flow-restriction portion is disposed in a region between the first groove and the second groove that protrudes upwards from the substrate and confines an organic encapsulation layer of the encapsulation layer.Type: GrantFiled: July 20, 2020Date of Patent: July 12, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hyoungsub Lee, Wooyong Sung, Junghan Seo
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Patent number: 11380282Abstract: A gamma voltage generating circuit includes N gamma voltage generating sub-circuits. Each gamma voltage generating sub-circuit includes a resistive voltage divider circuit and a plurality of gamma reference voltage output terminals. Each resistive voltage divider circuit includes a plurality of resistors connected in series, and any two resistive voltage divider circuits have a same resistance ratio of the plurality of resistors. The N gamma voltage generating sub-circuits include a first gamma voltage generating sub-circuit. The first gamma voltage generating sub-circuit further includes a gamma voltage generation circuit. Output terminals of the gamma voltage generation circuit are electrically connected to a highest gamma reference voltage output terminal and a lowest gamma reference voltage output terminal, respectively.Type: GrantFiled: December 25, 2019Date of Patent: July 5, 2022Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventor: Wenbo Wang
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Patent number: 11379062Abstract: A display panel and a testing method thereof, the display panel including a product region and a cutting region, and the product region including a display sub-region and a non-display sub-region. The display panel includes a flexible substrate, a thin film transistor layer, an organic light-emitting layer, a encapsulation layer, and a touch layer. The touch layer includes touch electrodes and touch leads. An end of each of the touch leads is connected to a corresponding touch electrode, the other end of each of the touch leads extends from the non-display sub-region to the cutting region, and a density of the touch leads in the cutting region is less than a density of the touch leads in the non-display sub-region.Type: GrantFiled: December 30, 2019Date of Patent: July 5, 2022Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventors: Dan Lin, Qibing Dai, Minlun Liu
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Patent number: 11379039Abstract: Brain-computer interface method and system include displaying and providing a motor imagery task to a subject, and collecting a generated digital electroencephalogram signal; reading the digital electroencephalogram signal, performing interception if a preset time period is exceeded, and performing continuous reading if not; performing band-pass filtering, obtaining time-frequency characteristics of the digital electroencephalogram signal, and extracting a frequency value with highest frequency energy as a main frequency; obtaining an instantaneous phase of the digital electroencephalogram signal; generating predicted sine waves by respectively using the main frequency and the instantaneous phase as a frequency and an initial phase of sine waves, and predicting and obtaining real-time phase information; and judging whether the real-time phase is in a vibration stimulation application phase interval, generating and outputting a control instruction, and controlling a vibration motor to vibrate and to stimulateType: GrantFiled: March 21, 2019Date of Patent: July 5, 2022Assignee: SOUTHEAST UNIVERSITYInventors: Aiguo Song, Wenbin Zhang, Hong Zeng, Baoguo Xu
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Patent number: 11374086Abstract: A single metal layer device, such as a display or sensor, comprises a substrate and a patterned metal layer. The patterned metal layer forms a two-dimensional array of spatially separated column line segments that each extend only partially across the display substrate in a column direction and forms a one-dimensional array of row lines extending across the display substrate in a row direction different from the column direction. The row lines and column line segments are electrically separate in the patterned metal layer. Spatially separated electrical jumpers are disposed on the display substrate and electrically connect pairs of column line segments adjacent in the column direction. Each electrical jumper has an independent jumper substrate independent of and separate from the display substrate. In certain embodiments, spatially separated light-emitting pixel circuits are disposed on a display substrate and are electrically connected to at least one row line and one column line.Type: GrantFiled: August 18, 2021Date of Patent: June 28, 2022Assignee: X Display Company Technology LimitedInventors: Christopher Bower, Matthew Meitl, Carl Prevatte, Ronald S. Cok
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Patent number: 11373567Abstract: A light-modulated photodiode-based monitor for detecting a control signal of a display is disclosed. The monitor includes an emitter configured to emit a control signal, a polarizer configured to linearly polarize the pulsed signal, one or more fold mirrors configured to reflect the pulsed signal from the emitter onto a test portion and/or reflect the pulsed signal that has reflected off of the test portion. The monitor further includes an analyzer configured to block or transmit the polarized pulse signal reflected from at least one of the fold mirror or the test portion, and a detector configured to receive the pulsed signal transmitted from the analyzer and convert the pulsed signal into an electrical signal. The monitor further includes a controller that includes one or more processors and is configured to receive the electrical signal, filter and rectify the electrical signal, and determine a functional state of the display.Type: GrantFiled: January 20, 2021Date of Patent: June 28, 2022Assignee: Rockwell Collins, Inc.Inventors: Joshua Gerdes, Eric P. Stratton, Jefferey R. Bader
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Patent number: 11373604Abstract: A driver circuit of a display panel, a display panel, and a driving method of the display panel. The display panel includes a plurality of sub-pixel units, and the driver circuit includes a plurality of detection capacitors, a detection capacitor and a compensation module; a first end of each of the plurality of detection capacitors is electrically connected to the plurality of sub-pixel units, and a second end of each of the plurality of detection capacitors is grounded; a first end of the drive module is electrically connected to the first end of each of the plurality of detection capacitors; and a second end of the drive module is electrically connected to the compensation module.Type: GrantFiled: September 15, 2021Date of Patent: June 28, 2022Assignee: YUNGU (GU'AN) TECHNOLOGY CO., LTD.Inventor: Hongjun Xie
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Patent number: 11366569Abstract: The disclosure relates to an interactive interface display method, apparatus, and storage medium. The method includes displaying an information display interface including a call entry of an intelligent interactive application; calling the intelligent interactive application when a trigger operation on the call entry is detected; displaying a first dynamic effect in which the call entry moves in the information display interface; and displaying an interactive interface of the intelligent interactive application after displaying the first dynamic effect in which the call entry moves in the information display interface.Type: GrantFiled: March 12, 2020Date of Patent: June 21, 2022Assignee: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.Inventors: Yuhang Xia, Zekui Li
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Patent number: 11360619Abstract: A touch panel, a fabricating method, a repair method, and a touch device are provided. The touch panel includes a substrate, and a touch electrode layer, the repair lines, and repair conductive portions, on the substrate. The touch electrode layer includes a touch electrode array. The repair lines are outside the touch electrode array. In a direction perpendicular to the touch panel, at least part of touch electrodes at edges of the touch electrode array overlaps the repair conductive portions, and/or the repair conductive portions overlap at least part of repair lines.Type: GrantFiled: November 15, 2019Date of Patent: June 14, 2022Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.Inventors: Conghua Ma, Qijun Yao
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Patent number: 11341920Abstract: A pixel circuit, a driving method thereof and electronic device, relates to the technical field of display configured for. The pixel circuit comprises a driving sub-circuit comprising a control terminal, a first terminal and a second terminal, the driving sub-circuit being configured to control a driving signal flowing through the first terminal and the second terminal according to a signal of the control terminal; a voltage division control sub-circuit configured to conduct voltage division on an input data signal in response to a first scanning signal to obtain a voltage division signal, and write the voltage division signal to the first terminal of the driving sub-circuit; and a compensation sub-circuit coupled to the control terminal of the driving sub-circuit and the second terminal of the driving sub-circuit, and configured to write voltage division signal passing through driving sub-circuit to control terminal of driving sub-circuit in response to first scanning signal.Type: GrantFiled: August 19, 2021Date of Patent: May 24, 2022Assignee: BOE Technology Group Co., Ltd.Inventors: Dongni Liu, Haoliang Zheng, Minghua Xuan
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Patent number: 11341881Abstract: A level shifter circuit includes an input terminal, a first output terminal, a second output terminal, an output stage, a first control bias unit, a second control bias unit, and an output stage. The input stage includes a first transistor and a second transistor, and their gates are coupled to the input terminal. The first control bias unit includes a third transistor and a fourth transistor coupled to the first transistor and second transistor respectively and their gates are controlled by a first bias. The output stage includes a fifth transistor and a sixth transistor coupled to the third transistor and fourth transistor respectively and their gates are coupled to the first output terminal and second output terminal. The second control bias unit includes a seventh transistor and an eighth transistor coupled to the fifth transistor and sixth transistor respectively and their gates are controlled by a second bias.Type: GrantFiled: February 2, 2016Date of Patent: May 24, 2022Assignee: Raydium Semiconductor CorporationInventors: Po-Cheng Lin, Yu-Chun Lin
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Patent number: 11335265Abstract: The present disclosure relates to a pixel circuit. The pixel circuit may include a storage capacitor, an initialization sub-circuit and a light-emitting control sub-circuit. The initialization sub-circuit is configured to store an initial voltage of the initial voltage terminal in the first terminal of the storage capacitor under a control of a light-emitting control signal of the light-emitting control terminal; and the light-emitting control sub-circuit is configured to apply a first voltage of the first voltage terminal to the first terminal of the storage capacitor. The first voltage terminal and the initial voltage terminal are separated terminals.Type: GrantFiled: March 13, 2019Date of Patent: May 17, 2022Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xueling Gao, Kuanjun Peng, Wei Qin
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Patent number: 11335264Abstract: A pixel circuit and a driving method thereof, and a display device, the pixel circuit being configured to drive a light-emitting element and including: a node control sub-circuit, which is configured to provide a first node with a signal of a data signal end and provide a second node with a signal of a control signal end under the control of a first scanning end; a driving sub-circuit, which is configured to provide the second node with a driving current under the control of the first node and the second node; a storage sub-circuit, which is configured to store electric charge between the first node and the second node; a reading sub-circuit, and the light-emitting element, which is electrically connected to the second node and a second power supply end, respectively.Type: GrantFiled: August 7, 2020Date of Patent: May 17, 2022Assignees: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Zhidong Yuan, Xuehuan Feng, Yongqian Li, Can Yuan, Meng Li, Dongxu Han