Physically Integral With Display Elements Patents (Class 345/205)
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Patent number: 11600675Abstract: A display device includes a first display area and a second display area adjacent to the first display area in a first direction, driving elements, light-emitting elements including a pixel electrode electrically connected to a corresponding one of the driving elements, signal wirings that transfer a driving signal to the driving elements, and connection wirings that transfer a driving signal to signal wirings disposed in the second display area. At least one of the connection wirings includes a first signal-transferring portion extending in the first direction, a second signal-transferring portion extending in a second direction, and dummy portions extending in a direction intersecting the first and second signal-transferring portions. The pixel electrode overlaps a gap between dummy portions of adjacent connection wirings in an area where the connection wirings are disposed.Type: GrantFiled: October 28, 2020Date of Patent: March 7, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Min Joo Kim, Sun Ho Kim, Seung-Hwan Cho, Tae Woo Kim, Tae Hoon Yang, Jong Hyun Choi
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Patent number: 11580910Abstract: A display device includes a display panel including a first display area; a second display area protruding in a first direction from the first display area; and a first non-display area adjacent to a side of the second display area. Each of the first display area and the second display area includes subpixels that display an image and scan lines electrically connected to the subpixels. The first non-display area includes dummy pixels; a common scan line electrically connected to the dummy pixels; load matching switch elements respectively disposed between the scan lines and the common scan line; and a load matching driving circuit that outputs load matching control signals to control turn-on and turn-off of the load matching switch elements.Type: GrantFiled: March 22, 2021Date of Patent: February 14, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Yong Sung Park, Hyun Woo Kim, Dae Hyun Noh, Seung Bin Lee
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Patent number: 11557248Abstract: According to one embodiment, a display device includes a display region where pixels are arranged. Each of the pixels includes a pixel electrode, a light emitting element, a drive transistor, a first capacitance electrode layer opposed to the pixel electrode and held at a constant potential, and an insulating layer forming an auxiliary capacitance together with the pixel electrode and the first capacitance electrode layer. A value of the auxiliary capacitance of the first pixel, of the values of the auxiliary capacitance of the pixels is the largest.Type: GrantFiled: November 8, 2021Date of Patent: January 17, 2023Assignee: Japan Display Inc.Inventors: Tetsuo Morita, Yasuhiro Ogawa
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Patent number: 11556231Abstract: Methods and apparatus related to determining a ranking of class members of a task component class. A task component class identifier may be identified, the task component class identifier having a plurality of associated class members. One or more task completion indicators having the identified at least one task component class identifier may be determined. Each of the task completion indicators may indicate which of the associated class members was utilized to complete a task. One or more of the associated class members for the task component class identifier may be ranked. The ranking may be based on frequency of occurrence of the given associated class member in the task completion indicators.Type: GrantFiled: October 2, 2020Date of Patent: January 17, 2023Assignee: GOOGLE LLCInventors: Erwin Can Sar, Timothy Youngjin Sohn, Andrew Tomkins, Vijay Umapathy
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Patent number: 11551597Abstract: An electronic device including a substrate, a plurality of first signal lines, and a plurality of second signal lines is provided. The first signal lines are disposed on the substrate. Each of the first signal lines includes a first intersecting section and a first extending section. The first intersecting section each has a constant extending direction. The first intersecting section is connected to the first extending section, while the first intersecting section and the first extending section have different extending directions. The second signal lines are disposed on the substrate. Each of the second signal lines includes a second intersecting section. The second intersecting section each has a constant extending direction. The second signal lines intersect with the first signal lines to form a plurality of intersections on each of the first signal lines, and the intersections are located on the first intersecting sections.Type: GrantFiled: March 15, 2021Date of Patent: January 10, 2023Assignee: E Ink Holdings Inc.Inventors: Chia-Chi Chang, Chih-Chun Chen, Chi-Ming Wu, Yi-Ching Wang, Jia-Hung Chen, Shu-Fen Tsai
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Patent number: 11551630Abstract: The present disclosure provides an apparatus and method for controlling a display module, and a display device. The apparatus for controlling the display module includes a voltage sampling circuit and a data processing circuit. The voltage sampling circuit may acquire a data voltage and a common voltage and transmit the acquired data voltage and common voltage to the data processing circuit. The data processing circuit may determine, based on the data voltage and the common voltage, whether liquid crystal molecules are deflected abnormally, and control a main control circuit to restart if the liquid crystal molecules are deflected abnormally.Type: GrantFiled: March 27, 2020Date of Patent: January 10, 2023Assignees: HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Lingxiao Hu, Ruwen Tang, Xiang Wang, Jiawei Wu, Bowen Qu
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Patent number: 11532276Abstract: A display apparatus including a main display area, a component area, and a peripheral area, the display apparatus includes: a substrate; an auxiliary sub-pixel arranged in the component area on the substrate; an auxiliary pixel circuit arranged in the peripheral area on the substrate; a connection line connecting the auxiliary sub-pixel to the auxiliary pixel circuit; an auxiliary scan line arranged in the peripheral area on the substrate and connected to the auxiliary pixel circuit; and an auxiliary scan driving circuit arranged in the peripheral area on the substrate and configured to output a scan signal to the auxiliary pixel circuit through the auxiliary scan line.Type: GrantFiled: June 3, 2021Date of Patent: December 20, 2022Inventors: Junki Jeong, Seonyoung Choi
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Patent number: 11516416Abstract: An image sensor compensates for noise. The image sensor includes a pixel array that includes a common monitor output line, a first monitoring pixel outputting a first monitoring signal, a second monitoring pixel outputting a second monitoring signal, and an active pixel configured to output a sensing signal based on an incident light. The image circuit also includes a binning circuit that receives the first and second monitoring signals through the common monitor output line and generates an average monitoring signal by performing binning on the first and second monitoring signals, and an analog-to-digital converter that detects an alternating current (AC) component of the average monitoring signal and couples the sampled AC component of the average monitoring signal to the sensing signal, thereby compensating for noise.Type: GrantFiled: February 25, 2022Date of Patent: November 29, 2022Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Kyung-Min Kim, Heesung Chae, Jaeyoung Bae, Sukki Yoon
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Patent number: 11488516Abstract: Provided are a circuit, a method of driving the panel, and a display device. The driving circuit includes a plurality of scanning lines, a plurality of clock signal connecting lines, a time controller and a multiple shift register unit. The input end of the shift register unit is correspondingly connected to the other end of the clock signal connecting line to receive clock signals of the time controller, and the output ends of the shift register units are connected with the scanning lines in one-to-one correspondence; Starting from the first shift register unit, the adjacent two shift register units are taken as a shift register group, and the clock signals sent by the time controller to the two shift register units in the same group via the clock signal connecting line have the same waveform.Type: GrantFiled: January 28, 2021Date of Patent: November 1, 2022Assignees: BEIHAI HKC OPTOELECTRONICS TECHNOLOGY CO., LTD., HKC CORPORATION LIMITEDInventors: Chiayang Cheng, Chongwei Tang
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Patent number: 11436983Abstract: A gate driving circuit includes a Q node controller generating a voltage of a Q node by using a first clock, a second clock, a third clock, and a start signal; a QB node controller generating a voltage of a QB node by using the second clock and the third clock; and an output part including a pull-up TFT and a pull-down TFT and generating an output signal including a first pulse interval, of a gate-on voltage, synchronized with a part of the first clock according to the voltages of the Q node and the QB node.Type: GrantFiled: December 29, 2020Date of Patent: September 6, 2022Assignee: LG DISPLAY CO., LTD.Inventors: Sanghyun Lim, Nakwoo Kim, Donghyang Lee
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Patent number: 11423836Abstract: A display device including a first pixel area including first pixels, a second pixel area including second pixels, a third pixel area including third pixels, and a display driver configured to control image display operations of the first pixel area, the second pixel area, and the third pixel area according to a first mode or a second mode, wherein the first pixel area includes a first sub-pixel area, and a second sub-pixel area between the first sub-pixel area and the second pixel area, and wherein the first sub-pixel area is configured to display a black image in the first mode, and the second sub-pixel area is configured to display a dummy image.Type: GrantFiled: February 8, 2021Date of Patent: August 23, 2022Assignee: Samsung Display Co., Ltd.Inventors: Tae Hoon Kwon, Ji Hyun Ka, Min Ku Lee, Seung Ji Cha, Hyun Uk Oh, Jin Tae Jeong
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Patent number: 11423827Abstract: A display device includes: a substrate including a display region including a plurality of pixel regions, and a non-display region at a periphery of the display region; a pixel circuit layer including a plurality of circuit elements in the display region; a display element layer including a plurality of light emitting devices in the display region on the pixel circuit layer; and first and second alignment lines in the non-display region, the first and second alignment lines each having a multi-layered structure. Each of the first and second alignment lines includes: a main line in a same layer as at least one electrode in the display element layer; and at least one sub-line electrically connected to the main line, the at least one sub-line in a same layer as at least one electrode in the pixel circuit layer.Type: GrantFiled: June 12, 2019Date of Patent: August 23, 2022Assignee: Samsung Display Co., Ltd.Inventors: Hong Bo Kim, Won Jun Lee, Yoon Jung Chai, Chol Ho Kim, Hyo Chul Lee
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Patent number: 11398471Abstract: The present disclosure generally relates to display technologies, and in particular, to a display motherboard, and a method of fabricating the display motherboard. A display motherboard includes a plurality of display substrate units on a base substrate, a gap between adjacent display substrate units, and at least one electrostatic equilibrator in the gap. Each display substrate unit includes at least one trace comprising a display portion that extends into the display substrate unit and a gap portion that extends into a gap adjacent to the display substrate unit. Each electrostatic equilibrator is configured to electrically couple gap portions of traces of the adjacent display substrate units, so as to form a conductive path between the gap portions.Type: GrantFiled: November 20, 2019Date of Patent: July 26, 2022Assignees: FUZHOU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xincheng Chen, Youxiong Wu, Xinquan Xie
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Patent number: 11387548Abstract: A liquid crystal antenna, a method of driving the same, and a communication device are provided. The liquid crystal antenna includes a first substrate and a second substrate opposite to each other; a liquid crystal layer between the first substrate and the second substrate; a first electrode on the first substrate and on a side of the first substrate facing the liquid crystal layer; a second electrode on the second substrate and on a side of the second substrate facing the liquid crystal layer, the second electrode being opposite to the first electrode; and a control circuit configured to output a first voltage signal to the first electrode and output a second voltage signal to the second electrode, wherein the first voltage signal is opposite in polarity to the second voltage signal.Type: GrantFiled: May 8, 2019Date of Patent: July 12, 2022Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventor: Tuo Sun
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Patent number: 11374079Abstract: The present application discloses a display substrate. The display substrate includes a base substrate; a thin film transistor for driving image display including an active layer; and a first light shielding layer on the base substrate and in an inter-subpixel region between two adjacent subpixel regions. A projection of the first light shielding layer on the base substrate at least partially covers a projection of the inter-subpixel region between two adjacent subpixel regions on the base substrate. The projection of the first light shielding layer on the base substrate is outside a projection of the active layer on the base substrate.Type: GrantFiled: September 4, 2017Date of Patent: June 28, 2022Assignee: BOE Technology Group Co., Ltd.Inventor: Wei Liu
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Patent number: 11348951Abstract: A display substrate includes an active area; and a gate-driver-on-array (GOA) circuit area, wherein the active area includes a display pixel area and a dummy pixel area located in the periphery of the display pixel area, and wherein the GOA circuit area includes at least one dummy GOA circuit having an output terminal connected to a pixel electrode of at least one dummy pixel.Type: GrantFiled: March 26, 2020Date of Patent: May 31, 2022Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Ruifang Du, Xiaofang Gu, Xiaoye Ma, Donghui Zhang, Yuxiang Zhang
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Patent number: 11348501Abstract: The present disclosure provides a shift register and a driving method thereof, a gate driving circuit and a display device. The shift register includes: a pre-charging circuit coupled to a pre-charging signal input terminal and a pull-up node to pre-charge a potential of the pull-up node; a pull-down control circuit coupled to the pull-up node, a pull-down node and a reset signal input terminal to pull down a potential of the pull-down node or pull up the potential of the pull-down node; a pull-up circuit coupled to the pull-up node and a signal output terminal to pull up a potential of the signal output terminal; a pull-down circuit coupled to the pull-down node and the signal output terminal to pull down the potential of the signal output terminal; reset circuit coupled to the pull-up node and the pull-down node reset the potential of the pull-up node.Type: GrantFiled: November 30, 2018Date of Patent: May 31, 2022Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Qi Hu, Hui Jing, Danhong Zhao
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Patent number: 11335756Abstract: An OLED display device including an OLED pixel driving circuit is provided. A driving thin film transistor in the OLED pixel driving circuit is configured as a double gate oxide thin film transistor, and a switch thin film transistor is configured as a top gate self-aligned oxide thin film transistor. A manufacturing method of a TFT array substrate is also provided, and the TFT array substrate is used for preparing the OLED display device.Type: GrantFiled: March 13, 2020Date of Patent: May 17, 2022Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventors: Letao Zhang, Xiaoxing Zhang
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Patent number: 11335271Abstract: A pixel circuit, a driving method and a display device are provided. The pixel circuit includes: a data writing unit, a driving unit, a light emitting unit and an initialization unit. The initialization unit is configured to initialize a second node with an initialization voltage. The data writing unit is configured to set voltage of a first node to the voltage of a data signal and update voltage of the second node. The driving unit is configured to drive the light emitting unit to emit light according to a control signal. Due to the second node being initialized and compensated by the initialization unit, the storage capacitor leakage paths and the electric leakage of the storage capacitor during the light emitting stage are reduced, thus improving the quality of the displayed image.Type: GrantFiled: July 17, 2018Date of Patent: May 17, 2022Assignee: EverDisplay Optronics (Shanghai) Co., Ltd.Inventors: Keitaro Yamashita, Lina Xiao
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Patent number: 11335224Abstract: A pixel circuit, a driving method thereof, and a display device are provided. The pixel circuit includes: a light-emitting assembly including a plurality of light-emitting elements; a driving sub-circuit electrically coupled to the light-emitting assembly and configured to generate driving current for driving the light-emitting assembly; and a repair sub-circuit electrically coupled to the light-emitting assembly and configured to: receive a repair scanning signal (Gate_R, Gate_Ri) and a repair data signal (Data_R, Data_Ri), and provide the driving current to at least one light-emitting element capable of emitting light normally among the plurality of light-emitting elements under the control of the repair scanning signal (Gate_R, Gate_Ri) and the repair data signal (Data_R, Data_Ri).Type: GrantFiled: May 7, 2020Date of Patent: May 17, 2022Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Dongni Liu, Minghua Xuan, Han Yue, Li Xiao, Liang Chen, Hao Chen
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Patent number: 11328667Abstract: A display panel driver drives pixels based on first power having at least three voltage levels, second power having a constant voltage, and third power having two voltage levels. Each pixel includes a first transistor connected between first and second nodes and including a gate electrode to receive a scan signal, a second transistor connected between the second node and a third node in series with the first transistor and including a gate electrode to receive the third power, and a driving transistor connected between a source of the first power and the third node and including a gate electrode connected to the first electrode to control a driving current for an organic light emitting diode. A first capacitor is connected between a source of the third power and the first node, and a second capacitor is connected between the second node and one of the data lines.Type: GrantFiled: May 6, 2021Date of Patent: May 10, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jun-Hyun Park, Young-Wan Seo, An-Su Lee, Bo-Yong Chung, Kang-Moon Jo, Chong-Chul Chai
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Patent number: 11322061Abstract: An array substrate, a display panel and a detection method are provided. The array substrate includes a plurality of display pixels and at least one detection element. When an aging process is performed on the plurality of display pixels, a first driving signal is applied on the at least one detection element and the at least one detection element changes from a first state to a second state, wherein the second state is different from the first state. The second state of the at least one detection element indicates that the plurality of display pixels has undergone the aging process.Type: GrantFiled: March 29, 2021Date of Patent: May 3, 2022Assignee: Xiamen Tianma Micro-Electronics Co., Ltd.Inventors: Lei Suo, Yana Gao, Lilian Kuang
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Patent number: 11314369Abstract: A display device including a display member including a substrate having an active area and a non-active area, and light-emitting elements disposed on the substrate, the non-active area including a bending region, and a touch member disposed on the display member and having a main touch area, in which the touch member includes touch electrodes disposed in the main touch area and touch lines connected to the touch electrodes, the main touch area corresponding to the active area and a portion of the touch lines corresponding to the non-active area, the touch lines include a first touch line part disposed on an upper side of the bending region, and a second touch line part disposed on a lower side of the bending region, and a number of conductive layers forming the first touch line part is greater than a number of conductive layers forming the second touch line part.Type: GrantFiled: April 17, 2020Date of Patent: April 26, 2022Assignee: Samsung Display Co., Ltd.Inventors: Ki Cheol Kim, Gyeong Nam Bang, Hwan Hee Jeong
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Patent number: 11302233Abstract: The disclosure provides a timing control method and a timing control circuit for a display panel, a driving device, and a display device. The method includes: in respective display periods, supplying a data enable signal to a source driving circuit. The source driving circuit supplies a data signal to a plurality of sub-display regions under the control of the data enable signal. The data enable signal is switched between an active level and an inactive level, and the active levels of the data enable signal are in one-to-one correspondence with the plurality of sub-display regions of the display panel. The farther one of the plurality of sub-display regions from the source driving circuit, the longer time period, at an active level, of the data enable signal for controlling the source driving circuit to provide the data signal to at least one row of pixels in the sub-display region is.Type: GrantFiled: May 26, 2020Date of Patent: April 12, 2022Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Yan Yang, Rui Liu, Wei Sun, Ming Chen, Xue Dong
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Patent number: 11295685Abstract: The present disclosure illustrates a driving method of a display panel and a driver device thereof. The method comprises steps of: applying drive voltages with opposite polarities to drive the positional corresponding sub-pixels of the two adjacent rows of pixel units, wherein the voltages with opposite polarities comprise voltage with positive polarity and voltage with negative polarity; applying voltages with positive polarity to a part of the positional corresponding sub-pixels of the two adjacent rows of pixel units; applying voltage with negative polarity to the other part of the positional corresponding sub-pixels of the two adjacent rows of pixel units; applying two drive voltages with opposite polarities to drive sub-pixels of the same pixel unit; applying drive voltages with at least two voltage levels to drive sub-pixels of the same pixel unit, and separating the plurality of sub-pixels according to the drive voltages with voltage levels.Type: GrantFiled: September 7, 2018Date of Patent: April 5, 2022Assignee: HKC Corporation LimitedInventor: Beizhou Huang
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Patent number: 11282462Abstract: A display pixel is provided that is operable to support hybrid compensation scheme having both in-pixel threshold voltage canceling and external threshold voltage compensation. The display may include multiple p-type silicon transistors with at least one n-type semiconducting-oxide transistor and one storage capacitor. An on-bias stress phase may be performed prior to a threshold voltage sampling and data programming phase to mitigate hysteresis and improve first frame response. In low refresh rate displays, a first additional on-bias stress operation can be performed separate from the threshold voltage sampling and data programming phase during a refresh frame and a second additional on-bias stress operation can be performed during a vertical blanking frame. The display pixel may be configured to receive an initialization voltage and an anode reset voltage, either of which can be dynamically tuned to match the stress of the first and second additional on-bias stress operations to minimize flicker.Type: GrantFiled: October 5, 2020Date of Patent: March 22, 2022Assignee: Apple Inc.Inventors: Chin-Wei Lin, Shinya Ono, Zino Lee, Yun Wang, Fan Gui
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Patent number: 11249363Abstract: According to one embodiment, a display device includes a first line which is arranged across a display portion, and includes a first end portion and a second end portion located at a non-display portion such that the display portion is located between the first and second end portions, a first switch electrically connected to the first end portion, a second switch electrically connected to the second end portion, a first terminal electrically connected to the first end portion via the first switch, and a second terminal electrically connected to the second end portion via the second switch.Type: GrantFiled: December 3, 2018Date of Patent: February 15, 2022Assignee: JAPAN DISPLAY INC.Inventors: Takahiro Ochiai, Hiroshi Inamura, Keita Sasanuma, Kengo Shiragami
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Patent number: 11243626Abstract: A display system circuitry capable of saving power consumption includes a display panel and a driver circuitry. In particular, the display panel includes a plurality of source electrodes with a plurality of data lines and a plurality of gate electrodes further includes a gate driver which is directly incorporated into a thin film transistor array to form Gate on Array (GOA) electrode, a source electrode transmitting a plurality of data driving signals, a gate electrode transmitting gate driving signals, a VCOM electrode transmitting voltage driving signals, a display electrode transmitting displaying driving signals. The driver circuitry includes a display driver IC which includes a source driver operably configured to drive the source electrode and gate control to control gate driver output, and a touch driver IC configured to generate the touch scan signal from a touch sensor.Type: GrantFiled: June 23, 2020Date of Patent: February 8, 2022Assignee: Solomon Systech (Shenzhen) LimitedInventors: Chen Jung Chuang, Hyong Cheol Shin, Chih Chiang Tsai, Yu Wei Liang
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Patent number: 11238763Abstract: The present disclosure discloses a detection circuit of a gate driver, an array substrate, a display device and a detection method thereof. Gate scanning signals of each of the signal output ends are derived to a detection signal line through signal deriving circuits, such that the gate scanning signals are transmitted to a discrimination circuit outside the array substrate. The discrimination circuit can acquire in real time and record the gate scanning signals, so as to detect the gate scanning signals in real time, and further rapidly diagnose whether the gate scanning signals are abnormal based on detection results, and rapidly locate the positions at which the gate scanning signals are abnormal, so as to timely troubleshoot the fault.Type: GrantFiled: September 27, 2019Date of Patent: February 1, 2022Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Meng Li, Zhigang Song
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Patent number: 11227530Abstract: The present application discloses a display panel, including a display body and a plurality of driving modules including a driving unit electrically connected to the display body; wherein at least a part of the driving modules further includes a voltage conversion unit, an input terminal of the voltage conversion unit is connected to a high-potential power supply voltage, and an output terminal of the voltage conversion unit is electrically connected to an input terminal of the driving unit to provide a preset driving voltage for the driving unit.Type: GrantFiled: December 17, 2019Date of Patent: January 18, 2022Inventor: Xianming Zhang
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Patent number: 11217145Abstract: The present invention is directed to driving methods for a color display device which can display high quality color states. The display device utilizes an electrophoretic fluid which comprises three types of pigment particles having different optical characteristics, and provides for displaying at a viewing surface not only the colors of the three types of particles but also the colors of binary mixtures thereof.Type: GrantFiled: June 19, 2020Date of Patent: January 4, 2022Assignee: E INK CALIFORNIA, LLCInventors: Craig Lin, Jo-Cheng Huang, Heng-Che Chen, Peter B. Laxton, Ming Wang, Ping-Yueh Cheng, HongMei Zang
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Patent number: 11211016Abstract: A source driver is configured to drive an organic light-emitting diode (OLED) display panel. The source driver includes a sensing circuit and an operational amplifier. The sensing circuit is configured to sense pixel information of an OLED pixel circuit through a sensing line of the OLED display panel. The operational amplifier includes an amplifier circuit and at least one switch circuit. The amplifier circuit includes at least one gain circuit. An input terminal of the amplifier circuit is coupled to an output terminal of the sensing circuit. Each of the at least one switch circuit is coupled between a pair of output terminals of a corresponding one of the at least one gain circuit.Type: GrantFiled: July 16, 2019Date of Patent: December 28, 2021Assignee: Novatek Microelectronics Corp.Inventors: Chih-Hsien Chou, Jhih-Siou Cheng, Jin-Yi Lin
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Patent number: 11211012Abstract: A display panel, a manufacturing method thereof and a display device are disclosed. The display panel includes: a display region including at least one rounded corner; and a non-display region located at a periphery of the display region. The non-display region includes: a gate drive circuit; and a plurality of first dummy pixels located outside the at least one rounded corner of the display region, a first power line of each of the plurality of the first dummy pixels being connected with a signal line of the gate drive circuit.Type: GrantFiled: April 20, 2020Date of Patent: December 28, 2021Assignees: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xueguang Hao, Xinyin Wu, Yong Qiao
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Patent number: 11195453Abstract: According to one embodiment, a display device includes a display region where pixels are arranged. Each of the pixels includes a pixel electrode, a light emitting element, a drive transistor, a first capacitance electrode layer opposed to the pixel electrode and held at a constant potential, and an insulating layer forming an auxiliary capacitance together with the pixel electrode and the first capacitance electrode layer. A value of the auxiliary capacitance of the first pixel, of the values of the auxiliary capacitance of the pixels is the largest.Type: GrantFiled: December 7, 2020Date of Patent: December 7, 2021Assignee: Japan Display Inc.Inventors: Tetsuo Morita, Yasuhiro Ogawa
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Patent number: 11189215Abstract: A display device includes a plurality of pixels, and a plurality of data lines connected to the plurality of pixels; a data driver for transmitting a data voltage to the data line; and a signal controller for receiving input image signals from the outside and outputting a digital image signal to the data driver. The signal controller includes an adjacent image signal compensator for comparing input gray data of the input image signals to be continuously input to the data line and generating adjacent image signal compensation data based on the comparison, and a pixel characteristic compensator for generating pixel characteristic compensation data according to a characteristic of a pixel to be displayed.Type: GrantFiled: September 4, 2020Date of Patent: November 30, 2021Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Byoung Seok Yoo, Hoi Sik Moon
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Patent number: 11189680Abstract: A display device includes a substrate including a first pixel region, a second pixel region having an area smaller than that of the first pixel region, and a peripheral region surrounding the first pixel region and the second pixel region, a second pixel provided in the second pixel region, a second line connected to the second pixel, an extension line extended to the peripheral region, a dummy part located in the peripheral region to overlap with the extension line, a power line connected to the first and second pixel regions, and a connection line located in the peripheral region to be connected to the dummy part, the connection line being electrically connected to a portion of the second pixel region, wherein the second pixel region includes a first sub-pixel region connected to the connection line and a second sub-pixel region except the first sub-pixel region.Type: GrantFiled: March 11, 2019Date of Patent: November 30, 2021Assignee: Samsung Display Co., Ltd.Inventors: Keon Woo Kim, Ji Hyun Ka, Tae Hoon Kwon, Ho Kyoon Kwon, Min Ku Lee, Zail Lhee, Jin Tae Jeong, Seung Ji Cha, Byung Du Ahn, Jeong Ho Lee
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Patent number: 11183117Abstract: A light-emitting device comprising an emitting unit including at least two emitting elements, a driving unit configured to control the emitting unit, and a capacitor unit formed over the driving unit. A shield layer may be located between the two emitting elements. In one example, the capacitor unit is formed at a level higher than a level of the driving unit, and a shield layer that is located between the two emitting elements is formed at a level that is higher than the level of the driving unit and equal to or lower than the level of the capacitor unit.Type: GrantFiled: July 17, 2020Date of Patent: November 23, 2021Assignee: Sony Group CorporationInventors: Tetsuo Minami, Junichi Yamashita
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Patent number: 11176905Abstract: A display panel, a display device and a driving method are provided. In the display panel, subpixels input with a first voltage data signal and subpixels input with a second voltage data signal are alternately arranged, and among the subpixels with a same color in a same row, the number of the subpixels input with the first voltage data signal with a positive polarity is equal to the number of the subpixels input with the first voltage data signal with a negative polarity; two adjacent pixel groups in a same column adopt contrary polarity driving manners.Type: GrantFiled: January 15, 2018Date of Patent: November 16, 2021Assignee: HKC CORPORATION LIMITEDInventor: Huai Liang He
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Patent number: 11150527Abstract: Provided are a display panel and a display device. The display panel includes: a substrate, including a display area; a first metal layer, including a plurality of scan lines; a second metal layer, including a plurality of first traces, wherein projections of the plurality of first traces on the substrate are located in the display area; and a driving chip, wherein at least a portion of the scan lines are connected to the driver chip through the first traces.Type: GrantFiled: January 9, 2019Date of Patent: October 19, 2021Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventor: Guodong Jiang
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Patent number: 11144126Abstract: Embodiments of the present disclosure relate to a touch display device, a driving method, and a driving circuit. More particularly, embodiments of the present disclosure relate to a touch display device, a driving method, and a driving circuit capable of preventing touch sensitivity from being affected by display driving even though simultaneously performing the display driving and touch driving by supplying a data voltage to a plurality of data lines disposed in a display panel, supplying a common voltage to a plurality of common electrodes disposed in the display panel, displaying an image through the display panel, and supplying a common voltage to the common electrodes.Type: GrantFiled: May 15, 2020Date of Patent: October 12, 2021Assignee: LG Display Co., Ltd.Inventors: CheolSe Kim, HoonBae Kim, SunYeop Kim
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Patent number: 11140790Abstract: A display device includes a first guide member extending in a first direction, a second guide member extending in the first direction and facing the first guide member in a second direction crossing the first direction, a display panel disposed between the first guide member and the second guide member, a support member which supports a portion of the display panel, a first driving unit which moves the support member, and a second driving unit connected to one end of the display panel to roll or unroll the display panel. Both sides of the support member are inserted into guide grooves defined in an inner side surface of the first guide member and an inner side surface of the second guide member, which faces the inner side surface of the first guide member, and the support member moves along the guide grooves.Type: GrantFiled: April 12, 2019Date of Patent: October 5, 2021Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Taewoong Kim, Hyunwoo Koo, Hyungsik Kim, Jeongho Kim, Jinhwan Choi
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Patent number: 11120762Abstract: A gate driving unit, a method for driving the same, a gate driving circuitry and a display module are provided. The gate driving unit includes: a shift register circuit configured to delay a phase of an input signal inputted by a signal input end under control of a first clock signal input end and a second clock signal input end to obtain a carry signal, and output the carry signal through a carry end; and a pulse width regulation circuit configured to regulate a pulse width of the carry signal under control of the enable end to obtain a gate drive signal, and output the gate drive signal through a gate drive signal output end.Type: GrantFiled: September 10, 2018Date of Patent: September 14, 2021Assignees: HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Zhangmeng Wang, Yimin Chen, Xianjie Shao
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Patent number: 11107428Abstract: A driving method for a display panel and a display device are provided. The driving method includes adopting drive data of relatively high voltage and drive data of relatively low voltage respectively for driving any two adjacent pixels; and with four columns of pixels as a repeater, adopting a first polarity arrangement drive for former two columns of adjacent pixels, and adopting a second polarity arrangement drive for the rest two columns of adjacent pixels; the first polarity arrangement drive is to perform positive polarity drive, negative polarity drive, negative polarity drive and positive polarity drive on four sub-pixels in the pixel respectively; and the second polarity arrangement drive is to perform negative polarity drive, positive polarity drive, positive polarity drive and negative polarity drive on four sub-pixels in the pixel respectively. The display device uses such a driving method.Type: GrantFiled: January 10, 2018Date of Patent: August 31, 2021Assignee: HKC CORPORATION LIMITEDInventor: Bei Zhou Huang
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Patent number: 11107397Abstract: A display device includes a display panel including pixels, a data driver providing data signals to the pixels, a scan driver providing scan signals to the pixels, a DC-DC converter converting an input voltage to a power supply voltage and supplying the power supply voltage to the display panel, a feedback circuit having a variable impedance and providing a feedback path of the power supply voltage to the DC-DC converter by receiving the power supply voltage supplied from the DC-DC converter to the display panel and providing an error signal corresponding to a difference between the feedback voltage and a reference voltage to the DC-DC converter, and a controller controlling the data driver and the scan driver, calculating a panel load of the display panel based on input image data, and adjusting the variable impedance of the feedback circuit according to the calculated panel load.Type: GrantFiled: September 9, 2019Date of Patent: August 31, 2021Assignee: SAMSUNG DISPLAY CO., LTD.Inventor: Siduk Sung
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Patent number: 11107427Abstract: A driving method of a display panel and a display device are provided. The driving method includes adopting drive data of relatively high voltage and drive data of relatively low voltage respectively for driving any two adjacent pixels; in each of the rows, with adjacent three pixels as a repeater, a polarity arrangement drive adopted by the pixels in a first column is different from a polarity arrangement drive adopted by the pixels in other two columns, the polarity arrangement drive above is one of a first polarity arrangement drive and a second polarity arrangement drive; in each of the columns, the polarity arrangement drive of every two of the pixels is identical; the first polarity arrangement drive and the second polarity arrangement drive are alternately changed with two of the pixels as a repeater. The display device uses such a driving method.Type: GrantFiled: January 10, 2018Date of Patent: August 31, 2021Assignee: HKC CORPORATION LIMITEDInventor: Bei Zhou Huang
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Patent number: 11100877Abstract: A display may have an array of pixels such as liquid crystal display pixels. The display may include short pixel rows that span only partially across the display and full-width pixel rows that span the width of the display. The gate lines coupled to the short pixel rows may extend into the inactive area of the display. Supplemental gate line loading structures may be located in the inactive area of the display to increase loading on the gate lines that are coupled to short pixel rows. The supplemental gate line loading structures may include data lines and doped polysilicon that overlap the gate lines in the inactive area. In displays that combine display and touch functionality into a thin-film transistor layer, supplemental loading structures may be used in the inactive area to increase loading on common voltage lines that are coupled to short rows of common voltage pads.Type: GrantFiled: July 22, 2019Date of Patent: August 24, 2021Assignee: Apple Inc.Inventors: Shin-Hung Yeh, Abbas Jamshidi Roudbari, Ting-Kuo Chang
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Patent number: 11087694Abstract: A driving voltage sensing circuit and a display device including the same. Deterioration of an organic light-emitting diode (OLED) disposed in each of subpixels is effectively compensated for by accurately sensing a change of charged capacitance depending on a current flowing through the organic light-emitting diode in a deterioration sensing period of the organic light-emitting diode. A driving voltage-for-sensing deterioration, applied to the display panel in the deterioration sensing period of the organic light-emitting diode, is maintained within a reference range. The deterioration of the organic light-emitting diode is accurately sensed by maintaining the driving voltage-for-sensing deterioration, applied in the deterioration sensing period, within the reference range.Type: GrantFiled: November 4, 2019Date of Patent: August 10, 2021Assignee: LG DISPLAY CO., LTD.Inventor: KwangMo Park
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Patent number: 11081074Abstract: Provided are a driving circuit and a display driving device, comprising: when a signal processing module acts on any control signal, only the path of the display signal outputting to the sources of transistors in a portion of the corresponding sub-pixels is turned on, enabling this portion to complete the display of sub-pixels. At the same time, the reference voltage is connected to the reference voltage terminal of the other portion of the corresponding sub-pixels, so that the pixel electrode of the other portion is charged to the reference voltage. On such basis, before each control signal is inverted, a portion of the sub-pixels is in operation, and the other portion is precharged to the reference voltage, thereby improving the charging efficiency of the pixel electrodes, and ensuring that the voltage on the pixel electrodes can be switched to a target voltage.Type: GrantFiled: November 29, 2018Date of Patent: August 3, 2021Assignee: HKC Corporation LimitedInventor: Xiaoyu Huang
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Patent number: 11081040Abstract: A pixel circuit includes a liquid crystal capacitor, a selection unit, a gray scale writing unit, and a reset unit. The selection unit is configured to determine whether to charge the liquid crystal capacitor according to a row control signal and a column control signal. The gray scale writing unit is configured to apply a gray scale voltage signal to the liquid crystal capacitor, when the selection unit determines to charge the liquid crystal capacitor, and an application duration of the gray scale voltage signal controls a gray scale level displayed by the liquid crystal capacitor. The reset unit is configured to disconnect the gray scale writing unit and the liquid crystal capacitor to stop charging the liquid crystal capacitor upon receiving the reset signal, and reset the voltage of the liquid crystal capacitor to an initial state.Type: GrantFiled: April 19, 2018Date of Patent: August 3, 2021Assignees: Beijing BOE Display Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Pengming Chen, Bin Zhang, Dianzheng Dong, Qiang Zhang, Guangxing Wang, Kan Zhang, Wenpeng Xu, Ziqiang Guo, Yongquan Lu
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Patent number: 11081062Abstract: The current sensing device in the present disclosure comprises a plurality of sensing units each of which is connected to a sensing channel. The sensing unit may comprise a reference current generator generating a reference current; a current comparator outputting a comparator output signal based on a pixel current input through the sensing channel and the reference current, and removing an offset deviation component included in the pixel current and the reference current by using a reset current externally applied; and an edge triggered data flip-flop outputting a digital sensing value corresponding to the pixel current based on the comparator output signal.Type: GrantFiled: September 17, 2019Date of Patent: August 3, 2021Assignee: LG Display Co., Ltd.Inventors: Hyuckjun Kim, Bumsik Kim, Seungtae Kim, Kyoungdon Woo, Myunggi Lim, Byungjae Lee, Minkyu Song