Patents Examined by Sujit Shah
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Patent number: 11462190Abstract: A control circuit, a liquid crystal display drive module, and a liquid crystal display apparatus are disclosed. The control circuit includes: a first input end (101) and a second input end (102) that separately receive different external power source signals, and the control circuit sequentially controls the first input end (101) and the second input end (102) to input a power source signal to the drive chip, and sequentially controls the second input end (102) and the first input end (101) to power off.Type: GrantFiled: May 13, 2021Date of Patent: October 4, 2022Assignee: VIVO MOBILE COMMUNICATION CO., LTD.Inventor: Liang Wen
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Patent number: 11462166Abstract: A display apparatus includes first to third demultiplexer circuits respectively providing a data signal, supplied from a data driver, to three data lines. Each of the first to third demultiplexer circuits includes a switching unit providing the data signal to a corresponding data line of the three data lines on the basis of a voltage of a corresponding control line of first to third control lines, a voltage controller controlling the voltage of the corresponding control line in response to a corresponding time division control signal of first to third time division control signals and a corresponding auxiliary signal of first to third auxiliary signals which partially overlap the first to third time division control signals respectively, and a voltage discharger discharging the voltage of the corresponding control line.Type: GrantFiled: September 9, 2020Date of Patent: October 4, 2022Assignee: LG Display Co., Ltd.Inventors: Yeonwoo Shin, JungHyun Lee, Yewon Hong
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Patent number: 11450269Abstract: The present disclosure relates to a display device and a compensation method and more particularly to a method for sensing mobility of a driving TFT of subpixels while an image is being driven by a display device, and a display device performing the method. A sensing method for compensation, which is performed while a display device is being driven, includes charging, in an Nth frame period, a node M of a shift register A connected to a jth gate line of a display panel. The method also includes charging, in the Nth frame period, a node M of a shift register B connected to a Kth gate line of the display panel. The method further includes sensing, in a next blank period to the Nth frame period, subpixels connected to the jth gate line and sensing subpixels connected to the Kth gate line in the blank period.Type: GrantFiled: December 29, 2020Date of Patent: September 20, 2022Assignee: LG Display Co., Ltd.Inventor: Lokdam Baek
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Patent number: 11373577Abstract: The present application discloses a shift-register unit. The shift-register unit includes a first sub-unit including a first input circuit coupled via a first node to a first output circuit. The first input circuit is configured to control a voltage level of the first node in response to a first input signal and the first output circuit is configured to output a shift-register signal and a first output signal in response to the voltage level of the first node. Additionally, the shift-register unit includes a second sub-unit including a second input circuit coupled via a second node to a second output circuit. The second input circuit is configured to control a voltage level of the second node in response to the first input signal and the second output circuit is configured to output a second output signal in response to the voltage level of the second node.Type: GrantFiled: July 2, 2019Date of Patent: June 28, 2022Assignees: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Xuehuan Feng, Yongqian Li, Xing Zhang
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Patent number: 11361726Abstract: A display device that achieves both high-accuracy sensing by a touch sensor unit and smooth input using the touch sensor unit is provided. The display device includes a display unit and the touch sensor unit. The touch sensor unit performs touch sensing operation at a different timing from display image rewriting by the display unit, whereby the high-accuracy sensing can be achieved. The display unit has a function of rewriting a display image only in a region that needs to be rewritten. In the case where the entire display region is not necessarily rewritten, the time for the sensing operation by the touch sensor unit can be lengthened, whereby the smooth input can be achieved.Type: GrantFiled: February 17, 2021Date of Patent: June 14, 2022Inventors: Susumu Kawashima, Kouhei Toyotaka, Kei Takahashi
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Patent number: 11353925Abstract: The present disclosure discloses a portable electronic device including a primary display panel, a keyboard module, a secondary display panel, and a support plate. The primary display panel includes a first pivot and a second pivot. The first pivot and the second pivot are disposed at the primary display panel. The keyboard module faces the primary display panel and includes a third pivot. One side of the secondary display panel is connected to the first pivot, and another side is a free side. The secondary display panel is flipped through the first pivot to be overlapped on an upper surface of the keyboard module or to abut against the upper surface at the free side. The support plate is flipped through the second pivot and the third pivot to be overlapped on the bottom surface of the primary display panel or to support the primary display panel.Type: GrantFiled: June 11, 2021Date of Patent: June 7, 2022Assignee: PEGATRON CORPORATIONInventors: Shih-Yao Lin, Tsung-Cheng Lin, Wen-Chung Wu, Tao-Hua Cheng, Pei-Yi Lee, Chia-Liang Chiang
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Patent number: 11341929Abstract: The present application discloses a driving method, a display panel and a driving circuit. The driving method includes a step of outputting a gate driving signal to a corresponding gate line. A signal period of a common level signal of a common line includes a first time and a second time, the first time corresponds to a first common level, and the second time corresponds to a second common level; a voltage value of the first common level is less than that of the second common level; for a common line corresponding to the Nth gate line, a start moment of the first time is no later than an open moment of the corresponding Nth gate line, and a start moment of the second time is no earlier than a close moment of the (N+1)th gate line.Type: GrantFiled: February 20, 2019Date of Patent: May 24, 2022Assignee: HKC CORPORATION LIMITEDInventor: Jianfeng Shan
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Patent number: 11341930Abstract: Embodiments of the present disclosure provide an erasing unit for image sticking in a liquid crystal display device, a control method thereof and a liquid crystal display device. A first controlling signal may be generated by dividing a voltage at a DC power supply terminal. A controlling circuit may output a second controlling signal and a third controlling signal in responding to the voltage of the first controlling signal being smaller than or equal to a reference voltage. A charging and discharging circuit may discharge under the control of the second controlling signal and output a high-level voltage signal to an outputting circuit. The outputting circuit may supply the high-level voltage signal outputted by the charging and discharging circuit to TFTs in the liquid crystal display device, controlling the TFTs to be turned on.Type: GrantFiled: August 14, 2018Date of Patent: May 24, 2022Assignees: HEFEI BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xiuqin Yang, Siying Lu, Huiming Wang, Wenbo Dong
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Patent number: 11327583Abstract: In one embodiment, computer-readable non-transitory storage media receive one or more signals based on motion of an object, a device, or both. The received signals are compared to a motion profile which defines unintended motion of the object, the device, or both, and this comparison determines whether any of the signals represent unintended motion of the stylus or device. The received signals are then processed to correct for the unintended motion defined by the motion profile.Type: GrantFiled: September 23, 2019Date of Patent: May 10, 2022Assignee: Wacom Co., Ltd.Inventors: Esat Yilmaz, Vemund Kval Bakken, Kishore Sundara-Rajan
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Patent number: 11328653Abstract: A detection device for an insertion slot of an LED display system is provided. When a first receiving card is inserted in the insertion slot, the detection device outputs, to a display panel of the LED display system, a first data output with reference to an image signal outputted by the first receiving card. When a second receiving card is inserted in the insertion slot, the detection device outputs a high-impedance signal to the second receiving card to enable the second receiving card to generate an enabling output, generates a second data output with reference to the enabling output and the image signal outputted by the second receiving card, and transmits the second data output to the display panel.Type: GrantFiled: May 21, 2021Date of Patent: May 10, 2022Assignee: Top Victory Investments LimitedInventors: Ching-Liang Wang, Li-Wei Lin
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Patent number: 11322104Abstract: This application provides an over-drive compensation method and a device thereof. The over-drive compensation method includes: receiving three primary color information of a current frame, and converting the three primary color information into color space information with luminance, to obtain a current luminance information from the color space information; buffering and storing the current luminance information in a buffer memory and outputting, by the buffer memory, previous luminance information of a previous frame; and generating a luminance over-drive gain value according to the current luminance information and previous luminance information; converting the luminance over-drive gain value into a three primary color over-drive gain value; and generating, according to the three primary color information and the three primary color over-drive gain values, corresponding over-drive compensated values for output to over-drive the liquid crystal display panel.Type: GrantFiled: March 4, 2020Date of Patent: May 3, 2022Assignee: REALTEK SEMICONDUCTOR CORP.Inventor: Li-Ang Chen
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Patent number: 11308905Abstract: A liquid crystal display device includes a liquid crystal display panel including a plurality of pixels, and a control circuit configured to generate a source signal voltage supplied to each pixel. The liquid crystal display panel includes an active matrix substrate including a pixel electrode applied with a source signal voltage and a common electrode applied with a common voltage. The common voltage and the source signal voltage corresponding to each gradation are set such that a source-common center difference at least one of lowest and highest gradation levels is greater than the source-common center difference at least some of the other gradation levels. A degree of symmetry of a gradation level voltage is equal to or lower than 95% at least at one of gradation levels equal to or lower than a 127/255-th gradation level except for the lowest gradation level.Type: GrantFiled: January 18, 2021Date of Patent: April 19, 2022Assignee: SHARP KABUSHIKI KAISHAInventors: Yoshimasa Yagi, Masatoshi Itoh, Shogo Nishiwaki, Hisashi Nagata
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Patent number: 11307759Abstract: The present disclosure provides a fusion method and terminal for touch messages and a computer readable storage medium. The method includes: pushing touch messages of all touch fingers from at least two different touch screens into different buffer queues for buffering; intercepting head data of each buffer queue to generate a reported data array; and acquiring states of the touch fingers according to the reported data array and packaging the states into multi-finger touch protocol data.Type: GrantFiled: September 5, 2018Date of Patent: April 19, 2022Assignee: XI'AN ZHONGXING NEW SOFTWARE CO., LTD.Inventor: Xiaochuan Cui
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Patent number: 11289005Abstract: A display device provided in the disclosure includes: a display panel including a gate driving circuit and a source driving circuit, a XB board including a driving circuit board assembly, and a system board including a system-on-chip and a second connector connected with the system-on-chip; the driving circuit board assembly includes a display control circuit and a first connector, the display control circuit is connected with the gate driving circuit, the source driving circuit and the first connector; the first connector includes voltage supplying pins, P2P interface pins and SPI pins; the second connector connects the first connector through a connecting member; the system-on-chip is configured for acquiring a type identification signal transmitted by the connecting member and identifying a P2P interface type according to the type identification signal; and transmitting corresponding P2P data to the connecting member according to the P2P interface type.Type: GrantFiled: September 18, 2020Date of Patent: March 29, 2022Assignee: XIANYANG CAIHONG OPTOELECTRONICS TECHNOLOGY CO., LTDInventors: Lei Sun, Yuanlian Wu, Yuyeh Chen, Zihan Liu
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Patent number: 11282419Abstract: A detection method, a display panel, and a drive method are disclosed. The detection method includes: performing group compensation on a scanning line by externally connecting to a compensation resistor having an adjustable resistance value and writing a corresponding resistance compensation value into a gate drive resistance compensation table.Type: GrantFiled: October 22, 2018Date of Patent: March 22, 2022Assignee: HKC CORPORATION LIMITEDInventor: Bei Zhou Huang
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Patent number: 11281340Abstract: Touch sensor systems and methods are disclosed including a radio frequency antenna that can be placed on or very near the touch pad. The touch pad sensor includes a patterned shielding that shields the touch pad sensor from back-side signals and has opening that are large enough to allow radio frequencies to pass through the touch pad sensor.Type: GrantFiled: December 13, 2019Date of Patent: March 22, 2022Assignee: Cirque CorporationInventor: Jon Bertrand
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Patent number: 11269577Abstract: A display device has display panels forming a single display screen, where each display panel is connected to a display controller which receives display data of a portion of a complete image for display on the display panel. The complete image includes one or more bounded regions of display data. Each display controller receives position information relating to a change in lateral position and/or stacking order position of one or more bounded regions to be displayed at least partly on that display panel. If the display controller does not have knowledge of display data in the bounded region to be displayed on the display panel, it obtains that knowledge from another display controller. The display controller processes the display data for the portion of the complete image utilizing the knowledge obtained, and outputs the processed display data for the portion of the complete image to the corresponding display panel.Type: GrantFiled: April 18, 2017Date of Patent: March 8, 2022Assignee: DISPLAYLINK (UK) LIMITEDInventors: Jonathan Alexander Jeacocke, Eric Kenneth Hamaker
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Patent number: 11263990Abstract: The present disclosure discloses a method for adjusting a display panel, a device for adjusting a display panel, and a display device including the adjusting device. The method includes: detecting an image displayed by a display panel to determine whether the displayed image is a flickering image; inverting original polarities of data voltages inputted onto at least partial data lines of the display panel when it is detected that the displayed image is the flickering image; scanning an I2C interface, and determining whether a common voltage is written; and restoring the polarities of the data voltages on the at least partial data lines to the original polarities when it is determined that the common voltage is written via the I2C interface.Type: GrantFiled: October 17, 2017Date of Patent: March 1, 2022Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Yuanyuan Liu, Min Wang, Rui Ma
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Patent number: 11237707Abstract: Apparatus and method are provided that are capable of controlling a display in response to reliable detection of a sliding movement operation of a pointer (e.g., a user's finger) that passes through an end of a display region. The apparatus and method utilize a position detection sensor, which is superposed on the display and configured to detect the pointer's position discretely and successively at a predetermined time interval. Based on a first position detected by the position detection sensor and a second position detected, at the predetermined time interval since the detection of the first position, by the position detection sensor, which together indicate a moving operation of the pointer, it is determined whether the moving operation of the pointer has crossed an end of the display region. If it is so determined, a passed end position of the display region is calculated based on the first and second positions.Type: GrantFiled: March 20, 2020Date of Patent: February 1, 2022Assignee: Wacom Co., Ltd.Inventors: Takeshi Kobori, Sadao Yamamoto
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Patent number: 11231774Abstract: The present disclosure discloses a method for executing an operation action on a display screen and a device for executing an operation action. Firstly, a gazing position of an operator's eyes on the display screen and a corresponding operation position of the operator's operating portion on the display screen are determined, then a corresponding operation is executed for content displayed on the display screen according to the operation action of the operating portion, when it is determined that the gazing position of the operator's eyes on the display screen is consistent with the corresponding operation position of the operator's operating portion on the display screen.Type: GrantFiled: November 9, 2017Date of Patent: January 25, 2022Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Yanling Han, Xue Dong, Haisheng Wang, Chun-wei Wu, Xiaoliang Ding, Yingming Liu