Display Power Source Patents (Class 345/211)
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Patent number: 10935875Abstract: A projector includes a light source, a color wheel, a housing, a motor, a lens module, an optical detection module, and a feedback module. The light source is used for providing a light beam. The color wheel includes a plurality of optical filtering segments for generating light with a plurality of colors. The housing is connected to the color wheel. The housing has a timing mark. The motor is connected to the housing for rotating the color wheel through the housing. The lens module is used for outputting the light with the plurality of colors. When the housing is rotated, the optical detection module generates a pulse width modulation signal according variations of gray levels of the housing. The feedback module is coupled to the optical detection module for conditionally outputting an adjusted voltage to the optical detection module according to the pulse width modulation signal.Type: GrantFiled: August 29, 2019Date of Patent: March 2, 2021Assignee: Qisda CorporationInventors: Jen-Te Chuang, Wei-Chun Chang
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Patent number: 10939269Abstract: Systems and methods are disclosed that allow users to alter fixed or stationary media displays, According to certain embodiments, the system comprises a mobile device, a remote server and a frame capable of presenting a digital image. The frame comprises a machine-readable indicia. The mobile device contains a reader application capable or reading and decoding the machine-readable indicia to determine instructions for accessing the remote server and presenting data from within the indicia that identifies the frame to the server. The server then requests and receives a digital media file from the mobile device and transmits it to the frame. The frame is equipped with a wireless receiver that receives the digital image, and a processor that causes it to be displayed. Various checks and verifications may be performed by the server. Various other aspects and embodiments are disclosed.Type: GrantFiled: May 13, 2015Date of Patent: March 2, 2021Inventor: Mike R. Turner
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Patent number: 10931372Abstract: A dual-mode imaging receiver (DMIR) can acquire and maintain SOA free-space optical communication (FSOC) links without a precision mechanical gimbal. Unlike other FSOC technologies, a DMIR can operate without precise spatial alignment and calibration of the transmitter's or receiver's spatial encoders (precision pointing) in static (fixed point to point) geometries. Instead, a DMIR uses electronic receive beam selection to acquire and track transmitters with coarse mechanical pointing and a single aperture. And because the DMIR can operate with just one aperture, it does not need a beacon at the transmitter since it does not transition from a wide field-of-view acquisition aperture to a narrow field-of-view detection and decoding aperture even in dynamic geometries.Type: GrantFiled: February 10, 2020Date of Patent: February 23, 2021Assignee: Massachusetts Institute of TechnologyInventors: Gary A Shaw, Lawrence M Candell, Pablo I. Hopman
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Patent number: 10930240Abstract: A display panel driving method, a driving device, and display device. The driving method includes steps of: performing a display, turning on first switch transistor and second switch transistor under control of first scanning line, and turning off third switch transistor under control of the second switch line, and inputting a data signal from data line to first pixel electrode and second pixel electrode through the first switch transistor and the second switch transistor and driving the pixel structure where the first pixel electrode and the second pixel electrode are located to display, and turning the third switch transistor under control of second scanning line and turning off the first switch transistor and the second switch transistor under control of the first scanning line to establish a preset voltage difference between the first pixel electrode and the second pixel electrode.Type: GrantFiled: September 1, 2017Date of Patent: February 23, 2021Assignees: HKC Corporation Limited, Chongqing HKC Optoelectronics Technology Co., Ltd.Inventor: Yu-Jen Chen
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Patent number: 10929085Abstract: An electronic device and an operating method of the electronic device are provided. The method includes determining a display scheme of a virtual input interface as a first display scheme, based on context information of the electronic device, in response to a change of context of the electronic device detected while the virtual input interface is displayed based on the first display scheme, changing the display scheme of the virtual input interface from the first display scheme to a second display scheme which is different from the first display scheme, and displaying the virtual input interface based on the second display scheme.Type: GrantFiled: July 31, 2019Date of Patent: February 23, 2021Assignee: Samsung Electronics Co., Ltd.Inventors: Jaeyeob Kim, Myojin Bang, Jinyeong Lee
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Patent number: 10923032Abstract: A pixel circuit includes a writing sub-circuit, a driving sub-circuit, a compensation sub-circuit, and a light-emitting control sub-circuit. The writing sub-circuit is configured to write a data signal to the driving sub-circuit under control of a scanning signal. The compensation sub-circuit is configured to perform voltage compensation for the driving sub-circuit under control of the scanning signal. The light-emitting control sub-circuit is configured to turn on a circuit between a first voltage terminal and a second voltage terminal under control of a light-emitting signal. The driving sub-circuit is configured to drive a light-emitting device to emit light according to a written data voltage.Type: GrantFiled: June 28, 2019Date of Patent: February 16, 2021Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO.. LTD.Inventor: Haigang Qing
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Patent number: 10923034Abstract: The present disclosure provides a driving system. The driving system includes: a voltage generating circuit configured to generate (2m+k+1) initial grayscale voltages; a ramp voltage curve generating circuit configured to generate (2m+1) ramp voltage curves by using the (2m+k+1) initial grayscale voltages based on k-bit data of received pixel data, each ramp voltage curve of the (2m+1) ramp voltage curves including 2k step voltages; a source driving circuit configured to generate additional 2n ramp voltage curves by using any two adjacent ramp voltage curves of the (2m+1) ramp voltage curves based on m-bit data of the received pixel data; and an output control circuit configured to select a grayscale voltage of the ramp voltage curves based on the received pixel data and send the selected grayscale voltage to the data signal input terminals of the pixel circuit.Type: GrantFiled: December 27, 2019Date of Patent: February 16, 2021Assignee: SEEYA OPTRONICS CO., LTD.Inventors: Ping-Lin Liu, Haodong Zhang
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Patent number: 10923058Abstract: The present invention provides a pixel driving circuit, a display panel, and a display device. The pixel driving circuit includes: an upper plate of a liquid crystal capacitor and an upper plate of a storage capacitor both connected to a drain of a driving thin film transistor, and a lower plate of the liquid crystal capacitor and a lower plate of the storage capacitor both connected to a voltage regulator module. When the display panel is powered off, the voltage regulator module keeps a voltage difference between the upper and lower plates of the liquid crystal capacitor and the upper and lower plates of the storage capacitor constant.Type: GrantFiled: November 26, 2018Date of Patent: February 16, 2021Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd.Inventors: Zuomin Liao, Dian Zhang
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Patent number: 10916209Abstract: A compensation device, a display device and a method for compensating common electrode voltage are provided in the embodiments of the present disclosure. A compensation device for a display panel according to an embodiment includes a compensation circuit, a comparison circuit, and an adjustment circuit. The compensation circuit generates a common electrode compensation signal to be provided to the display panel based on a common electrode input signal for providing a common electrode voltage to the display panel and a common electrode feedback signal from the display panel. The comparison circuit compares the common electrode compensation signal with the common electrode feedback signal. The adjustment circuit adjusts the common electrode compensation signal according to the comparison result of the comparison circuit.Type: GrantFiled: July 24, 2017Date of Patent: February 9, 2021Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Jianjun Wang, Long Yan, Chunyang Nie, Ke Dai
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Patent number: 10914834Abstract: Techniques and apparatuses are described that enable low-power radar. The described techniques enable a radar system to reduce overall power consumption, thereby facilitating incorporation and utilization of the radar system within power-limited devices. Power consumption is reduced through customization of the transmission or processing of radar signals within the radar system. During transmission, different duty cycles, transmit powers, or framing structures can be utilized to collect appropriate data based on detected activity in an external environment. During processing, different hardware or different radar pipelines can be utilized to appropriately analyze the radar data. Instead of disabling the radar system, the described techniques enable the radar system to continuously monitor a dynamic environment and maintain responsiveness while conserving power.Type: GrantFiled: May 8, 2018Date of Patent: February 9, 2021Assignee: Google LLCInventors: Patrick M. Amihood, Abhijit Shah, Jaime Lien, Hakim Kader Bhai Raja
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Patent number: 10909918Abstract: An organic light emitting display device driven at a first driving frequency or a second driving frequency lower than the first driving frequency includes pixels coupled to first scan lines, second scan lines, and data lines, a first scan driver configured to supply scan signals to the first scan lines during a first period and a second period in one frame period, when the organic light emitting display device is driven at the second driving frequency, a second scan driver configured to supply scan signals to the second scan lines during the first period, when the organic light emitting display device is driven at the second driving frequency, and a data driver configured to supply a data signal to the data lines during the first period.Type: GrantFiled: December 12, 2017Date of Patent: February 2, 2021Assignee: Samsung Display Co., Ltd.Inventors: Yong Jae Kim, Jin Jeon, Chul Kyu Kang
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Patent number: 10909935Abstract: A liquid crystal display device includes a liquid crystal display panel, a light source configured to provide the liquid crystal display panel with a light, a vertical blank detector circuit configured to calculate a counting value of a vertical blank period of a frame by counting a synchronization signal, a luminance correction value calculator circuit configured to calculate a luminance correction value by comparing the counting value of the vertical blank period with a plurality of reference counting values, and a light source driver configured to generate a light source driving signal and provide the light source driving signal to the light source. The light source driving signal has a normal level corresponding to a normal luminance value in an active period of the frame and has a correction level corresponding to the luminance correction value in the vertical blank period of the frame.Type: GrantFiled: July 9, 2019Date of Patent: February 2, 2021Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jahun Koo, Jinho Park, Jong Deuk Moon, Su-Han Woo, Kyung-Hun Lee, Kyung-Uk Choi
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Patent number: 10908559Abstract: The present disclosure generally relates managing display usage. In some embodiments, a device modifies various aspects of a displayed user interface as the device transitions from operating in a first device mode to operating in a second device mode. In some embodiments, the modifications involve altering the content included in a user interface and varying how the content is displayed.Type: GrantFiled: September 27, 2019Date of Patent: February 2, 2021Assignee: Apple Inc.Inventors: Aurelio Guzman, Giovanni M. Agnoli, Kevin Will Chen, Yiqiang Nie, Jacob Z. Weiss, Edward Chao, Alan C. Dye, Dylan Ross Edwards, Stephen O. Lemay, Matthew J. Sundstrom, Christopher Wilson
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Patent number: 10909942Abstract: Provided are a drive circuit capable of preventing a malfunction of the circuit, and a display apparatus. Each of the multiple shift registers comprising an output switching element and a first input switching element, wherein one or more shift registers of the multiple shift registers comprise a control switching element, wherein a first controlled terminal is connected to either an output control node to which a second controlled terminal of the first input switching element and a control terminal of the output switching element are connected or a second controlled terminal of the output switching element, and a second controlled terminal is connected to a predetermined electric potential, wherein a first clear signal to be high level at or before a time point when an predetermined clock signal rises is input to a control terminal of the control switching element.Type: GrantFiled: August 5, 2016Date of Patent: February 2, 2021Assignee: SAKAI DISPLAY PRODUCTS CORPORATIONInventor: Yoshihisa Takahashi
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Patent number: 10901477Abstract: An information processing apparatus includes a first controller which is in an active state regardless of whether a state of a computer system is the active state or an idle state and a second controller which is in the active state in a case where the state of the computer system is the active state, a first low power consumption mode or a second low power consumption mode and is in the idle state in a case where the state of the computer system is a third low power consumption mode are provided. The first controller freely counts a time of day and changes the state of the computer system to the first low power consumption mode in a case where the state of the computer system is the third low power consumption mode and the time of day reaches a predetermined transition time of day.Type: GrantFiled: September 27, 2019Date of Patent: January 26, 2021Assignee: LENOVO (SINGAPORE) PTE. LTD.Inventor: Yuichiro Seto
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Display driving method, display driver integrated circuit, and electronic device comprising the same
Patent number: 10902772Abstract: A display driver integrated circuit is disclosed. The display driver integrated circuit includes panel signal supply circuitry configured to supply an image signal corresponding to image data to a panel, pixel power supply circuitry configured to supply pixel power to a pixel that receives the image signal, and a controller configured to control the pixel power supply circuitry to supply the pixel power based on an on-pixel ratio (OPR) value of the image data.Type: GrantFiled: May 23, 2018Date of Patent: January 26, 2021Assignee: Samsung Electronics Co., Ltd.Inventors: Dong Hui Kim, Young Hee Ha -
Patent number: 10893619Abstract: A backlight unit includes a light guide plate having a curved surface, and a light source unit disposed at one side of the light guide plate and bent to correspond to the curved surface. The light source unit includes a printed circuit board and a plurality of light sources mounted on the printed circuit board.Type: GrantFiled: December 12, 2018Date of Patent: January 12, 2021Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Wee Joon Jeong, Min Gwan Hyun
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Patent number: 10879844Abstract: An oscillation device includes an oscillator and a logic circuit. The oscillator generates an output oscillation signal. The logic circuit controls the oscillator according to the output oscillation signal, such that the output oscillation signal includes two different oscillation periods. The oscillation device may be used as a temperature-to-frequency converter without any bandgap reference circuit.Type: GrantFiled: November 8, 2017Date of Patent: December 29, 2020Assignee: MEDIATEK INC.Inventors: Wei-Lin Chen, Kuan-Ta Chen
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Patent number: 10872557Abstract: A display control apparatus includes: an obtaining unit that obtains average luminance information representing a maximum period average luminance value which is a maximum value of average luminance in target image data for each frame in a first period; and a setting unit that sets one of a first control mode for displaying an image based on the target image data with carrying out power limiting processing for reducing display luminance of each frame so that power consumption by a display unit is equal to or less than a predetermined power threshold value and a second control mode for displaying the image without carrying out the power limiting processing, wherein the setting unit sets the second control mode in a case where the maximum period average luminance value is higher than a first threshold value on the basis of the average luminance information.Type: GrantFiled: March 20, 2019Date of Patent: December 22, 2020Assignee: CANON KABUSHIKI KAISHAInventor: Hirofumi Urabe
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Patent number: 10872562Abstract: A pixel includes an OLED, a driving transistor, first to third transistors, and a first capacitor. The driving transistor controls an amount of current supplied from a first power source to the OLED. The first power source is coupled to a first electrode of the driving transistor. The current corresponds to a voltage of a first node. The first transistor is coupled between a data line and a second node. The first capacitor is coupled between the first node and the second node. The second transistor is coupled between the first node and a second electrode of the driving transistor. The third transistor is coupled between the first node and an initialization power source. A turn-on time of the first and second transistors overlaps that of the third transistor.Type: GrantFiled: February 19, 2019Date of Patent: December 22, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventor: Ji Su Na
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Patent number: 10867573Abstract: Provided in the embodiments of the disclosure are a common voltage control circuit and method, a display panel and a display device. The control circuit includes a temperature sensing circuit and a voltage adjusting circuit. The temperature sensing circuit is configured to sense the ambient temperature. The voltage adjusting circuit is coupled to the temperature sensing circuit and the common electrode, and is configured to provide a corresponding common voltage to the common electrode based on a temperature signal from the temperature sensing circuit. According to the embodiments of the present disclosure, the common voltage may be changed according to the ambient temperature to improve the image sticking.Type: GrantFiled: September 4, 2017Date of Patent: December 15, 2020Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE SPECIAL DISPLAY TECHNOLOGY CO., LTD.Inventors: Xiaolong Liu, Shihao Wang, Zhicheng Wang, Shenglin Sun, Junguo Liu
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Patent number: 10867559Abstract: A display device including: a scan driver that transmits scan signals to scan lines; a data driver that data signals to data lines; and a display portion that includes pixels, respectively connected to the corresponding scan lines and corresponding data lines, and displays an image by the pixels that simultaneously emit light according to the corresponding data signals, wherein each of pixels includes: an organic light emitting diode; a first transistor that includes a gate connected to a first node, and is connected between first power and an anode of the organic light emitting diode; a second transistor that includes a gate connected to a corresponding scan line and transmits the corresponding data signal to the first node; and a first capacitor that is connected to the first node, and stores a data voltage according to the data signal.Type: GrantFiled: March 7, 2019Date of Patent: December 15, 2020Assignee: Samsung Display Co., Ltd.Inventors: Jun Hyun Park, Cheol-Gon Lee, Yang-Hwa Choi
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Patent number: 10847237Abstract: The present disclosure provides a shift register, a driving circuit, a display device and a driving method for improving the accuracy of an output signal. The first input unit of the shift register is configured to provide a signal at a first fixed potential terminal to a first node, a signal at the input signal terminal to the first node and the signal at the input signal terminal to the first node. A second input unit of the shift register is configured to provide the signal at the input signal terminal to the second node and a signal at the first fixed potential terminal to the second node. An output unit of the shift register is configured to provide a signal at the first clock signal terminal to an output signal terminal of the shift register and a signal at a second fixed potential terminal to the output signal terminal.Type: GrantFiled: January 10, 2019Date of Patent: November 24, 2020Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.Inventors: Dongxu Xiang, Yue Li, Renyuan Zhu, Yana Gao, Xingyao Zhou, Zhonglan Cai, Juan Zhu, Yilin Xu, Gaojun Huang
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Patent number: 10845477Abstract: Techniques and apparatuses are described that enable power management using a low-power radar. The described techniques enable a radar system to reduce overall power consumption, thereby facilitating incorporation and utilization of the radar system within power-limited devices. In one aspect, the radar system can replace other power-hungry sensors and provide improved performance in the presence of different environmental conditions, such as low lighting, motion, or overlapping targets. In another aspect, the radar system can cause other components within the electronic device to switch to an off-state based on detected activity in an external environment. By actively switching the components between an on-state or the off-state, the radar system enables the computing device to respond to changes in the external environment without the use of an automatic shut-off timer or a physical touch or verbal command from a user.Type: GrantFiled: May 8, 2018Date of Patent: November 24, 2020Assignee: Google LLCInventors: Patrick M. Amihood, Abhijit Shah, Jaime Lien, Hakim Kader Bhai Raja
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Patent number: 10841519Abstract: A photoelectric conversion apparatus including pixels is provided. Each pixels comprises a photoelectric converter, a floating diffusion, a transfer transistor between the photoelectric converter and the floating diffusion, a reset transistor resetting the floating diffusion, and an amplification transistor outputting a signal from the pixel to a signal line. An accumulation period includes, sequentially, a first period supplying a first voltage to a gate of the reset transistor, a second period supplying a second voltage to the gate, and a third period supplying a third voltage to set the reset transistor to the OFF to the gate. The first voltage is a voltage that falls between the second voltage and the third voltage, the second period is started before the signal is output, and the second period is longer than the third period.Type: GrantFiled: November 8, 2018Date of Patent: November 17, 2020Assignee: Canon Kabushiki KaishaInventor: Tetsuya Itano
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Patent number: 10832633Abstract: The present invention relates to a sink device and a power control method therefor. The sink device comprises: an HDMI reception unit connected to a source device and receiving a signal transmitted by the source device; and a processor for turning on the power of the sink device when a TMDS clock is received from the source device. Therefore, the power of the sink device is automatically turned on, thereby enabling user convenience to improve.Type: GrantFiled: June 27, 2017Date of Patent: November 10, 2020Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jong-jin Park, Je-hwan Seo, Seung-il Yoon
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Patent number: 10832626Abstract: A semiconductor device in which variations are controlled is provided. The semiconductor device has a function of converting a digital signal into an analog signal, and includes a digital-analog converter circuit, an amplifier circuit, first to fourth switches, a first output terminal, a second output terminal, and a power source. The amplifier circuit is configured to perform feedback control when the first switch and the fourth switch are on and the second switch and the third switch are off. The amplifier circuit is configured to perform comparison control when the first switch and the fourth switch are off and the second switch and the third switch are on; utilizing this, variations in the digital-analog converter circuit and the amplifier circuit are controlled.Type: GrantFiled: August 27, 2018Date of Patent: November 10, 2020Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Kei Takahashi
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Patent number: 10825392Abstract: Embodiments of the present disclosure provide a data signal compensation method for a pixel circuit, including: inputting a test signal to the data signal line, and detecting a real-time voltage at the first node after a first preset time elapses; comparing the real-time voltage with a preset voltage, and in response to the real-time voltage being deviated from the preset voltage, adjusting an initial compensation value for a mobility, so as to make the real-time voltage be consistent with the preset voltage, wherein the preset voltage is set by obtaining an initial threshold voltage for the driving transistor; generating a compensation test signal and inputting the compensation test signal to the data signal line; and generating a test signal, inputting the generated test signal to the data signal line, and sensing a first voltage at the first node after a first preset time elapses as the preset voltage.Type: GrantFiled: April 26, 2019Date of Patent: November 3, 2020Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Yi Chen, Fei Yang, Song Meng
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Patent number: 10826475Abstract: A shift register includes: a first control and output circuit coupled to precharge signal input terminal, first and second power supply terminals, first to third clock signal terminals, first signal output terminal, and configured to write second clock signal provided through the second clock signal terminal to the first signal output terminal during precharge and output phases, and write second operating voltage provided through the second power supply terminal to the first signal output terminal during reset phase; and a second control and output circuit coupled to the first and second power supply terminals, the third clock signal terminal, the precharge signal input terminal, second signal output terminal, and configured to write first operating voltage provided through the first power supply terminal to the second signal output terminal during the precharge and output phases, and write the second operating voltage to the second signal output terminal in the reset phase.Type: GrantFiled: November 27, 2019Date of Patent: November 3, 2020Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Lubin Shi, Xiaohai Chen
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Patent number: 10818241Abstract: The display apparatus may include gate lines passing through a display area of a substrate, data lines passing through the display area of the substrate, pixel driving power lines passing through the display area of the substrate, a plurality of pixels having a pixel driving chip mounted on at least one pixel area defined on the substrate and connected and connected to an adjacent gate line and data line and a light emission part connected to the pixel driving chip, a gate driving chip array part mounted in a non-display area of the substrate and connected to the gate lines, and a data driving chip array part mounted in the non-display area of the substrate and connected to the data lines.Type: GrantFiled: December 19, 2018Date of Patent: October 27, 2020Assignee: LG DISPLAY CO., LTD.Inventors: Kyung-Rok Kim, Taegung Kim, Haejin Park, EunJi Park, Kimin Son
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Patent number: 10818232Abstract: A display device including pixels is provided. Each pixels includes a light emitting element, a first transistor configured to supply current to the light emitting element, a second transistor configured to control emission of the light emitting element, a first capacitor including a first electrode and a second electrode, and a second capacitor including a third electrode and a fourth electrode. The first electrode is connected to a gate electrode of the first transistor. The second and third electrodes are connected to a main terminal of the first transistor. The fourth electrode is connected to a main terminal of the second transistor. The first capacitor is arranged between the substrate and the second capacitor. At least a portion of an outer edge of the first electrode is arranged more to an inside than that of the third electrode.Type: GrantFiled: October 29, 2019Date of Patent: October 27, 2020Assignee: Canon Kabushiki KaishaInventors: Hiromasa Tsuboi, Takehiko Soda
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Patent number: 10818244Abstract: A display panel, a manufacturing method thereof, and a display device are provided. The display panel has a display region and a non-display region, and includes a base substrate and a plurality of pixels arranged on the base substrate, in which the plurality of pixels includes a plurality of first pixels and a plurality of second pixels, the plurality of first pixels is arranged in an array in first arrangement region, the plurality of second pixels is arranged in a periphery of the first arrangement region, one part of each of the second pixels is in second arrangement region and the other part thereof is in third arrangement region, the first arrangement region and the second arrangement region is disposed in the display region, and the third arrangement region is disposed in the non-display region. The display uniformity is improved, and the display effect is enhanced.Type: GrantFiled: February 8, 2018Date of Patent: October 27, 2020Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTDInventors: Tingliang Liu, Weiyun Huang, Yue Long, Xiangdan Dong, Yang Wang
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Patent number: 10818257Abstract: Disclosed are embodiments of a narrow bezel display. The narrow bezel display has a structure in which output terminals of gate circuits are connected to jumping units through wires having a multistage path, thereby reducing the bezel size of a display. A dielectric layer may be disposed under the multistage path without placing another wire layer thereunder to prevent non-uniform capacitance between the wires and an underlying wire layer. Thus, a dimming phenomenon may be prevented during operation of the display or a short circuit may be prevented during an electrostatic test.Type: GrantFiled: December 13, 2017Date of Patent: October 27, 2020Assignee: LG Display Co., Ltd.Inventors: Daehoon Kim, Yuseok Jung
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Patent number: 10809570Abstract: A method for acquiring backlight diffusion transmission parameter, a display control method and a display control device are provided.Type: GrantFiled: January 10, 2019Date of Patent: October 20, 2020Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Zhihua Ji, Tiankuo Shi, Xiaomang Zhang, Yilang Sun, Yanhui Xi, Yifang Chu, Lingyun Shi, Chuanjun Liu
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Patent number: 10810930Abstract: There is provided an electroluminescence display device and driving method thereof. The electroluminescence display device can include an electroluminescence element in each of a plurality of pixels, a pixel driving circuit for driving the electroluminescence element, a gate driver and a data driver for generating signals for driving the pixel driving circuit to be switchable between a first refresh rate and a second refresh rate, and an emission signal generator for generating an emission signal having a first duty ratio supplied to the pixel driving circuit when the pixel driving circuit is driven at the first refresh rate and generating the emission signal having a second duty ratio supplied to the pixel driving circuit when the pixel driving circuit is driven at the second refresh rate. Accordingly, uniform brightness can be displayed regardless of the driving refresh rate for reducing the recognizable image distortion phenomenon.Type: GrantFiled: November 24, 2017Date of Patent: October 20, 2020Assignee: LG DISPLAY CO., LTD.Inventors: DongSup Shim, Byeongjun Kim, Kyoungwon Lee
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Patent number: 10810934Abstract: A display device includes a display panel including pixels each including a light emitting element and a bypass transistor connected to the light emitting element to receive an initialization voltage, a first offset voltage determining unit determining a first offset voltage using a brightness period of image data and a temperature of the display panel, a black image detecting unit detecting black data among the image data to determine a dense area of the pixels to which the black data are applied, and determining whether to proceed with a subsequent operation, an image analyzing unit analyzing the image data depending on the determination of whether to proceed with the subsequent operation, and outputting an analyzed result, and a second offset voltage determining unit determining a second offset voltage using the analyzed result. The initialization voltage is determined using the first offset voltage and the second offset voltage.Type: GrantFiled: February 26, 2019Date of Patent: October 20, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Si-Beak Pyo, Yoongyu Lee
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Patent number: 10810927Abstract: A method for controlling display by an electronic device is provided. The method includes, when a predetermined number or more same frame data are consecutively generated, storing the same frame data in a storage of a display driving module by an application processor, stopping transmitting frame data to the display driving module, and scanning the frame data stored in the storage and outputting to a display panel by the display driving module.Type: GrantFiled: August 27, 2018Date of Patent: October 20, 2020Assignee: Samsung Electronics Co., Ltd.Inventors: Hong-Kook Lee, Hyun-Chang Shin, Dong-Sub Kim
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Patent number: 10803819Abstract: A driving method and a driving apparatus of a display panel and a display apparatus are provided. A position information of a current sub-pixel and a driving data for driving the current sub-pixel are obtained. A judgment parameter corresponding to the position information is found from a first parameter look-up table. The driving data whether needs to be compensated is determined. A compensation driving data corresponding to the driving data is found from a second parameter look-up table corresponding to the position information if it needs to be compensated, or else the driving data is directly outputted. Bright and dark stripes or grid phenomenon in a liquid crystal display panel can be effectively eliminated consequently.Type: GrantFiled: September 20, 2017Date of Patent: October 13, 2020Assignees: HKC CORPORATION LIMITED, CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Yun Chuan Hu
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Patent number: 10803809Abstract: Disclosed are a gate driving circuit, a driving method thereof, and a display device which comprises the gate driving circuit. In the gate driving circuit, the Qn node in the nth stage circuit is precharged when an output signal of a Qn?1 node in a previous stage driving circuit and an output signal of a Qn+1 node in a next stage driving circuit are both in a high-level state. Both the Qn?1 node and the Qn+1 node are at low levels when the gate driving circuit is in an All Gate On display state, and thus a possibility of current leakage from the Qn node can be substantially reduced.Type: GrantFiled: December 29, 2016Date of Patent: October 13, 2020Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Yafeng Li
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Patent number: 10802331Abstract: A display apparatus is provided. The display apparatus includes a display panel, a backlight module, a power-supply circuit, and a system-control circuit. The display panel is configured to display an image signal. The backlight module is configured to provide backlight to the display panel. The power-supply circuit is configured to convert an alternating current (AC) source to a direct current (DC) voltage. The system-control circuit includes a power-loss-detection circuit and a display controller. The power-loss-detection circuit is configured to detect whether the DC voltage from the power-supply circuit has a power-loss event. The display controller is configured to control the display panel and the backlight module. In response to the power-loss-detection circuit detecting that the DC voltage has the power-loss event, the display controller performs a predetermined shutdown procedure to sequentially turn off the backlight module and the display panel.Type: GrantFiled: May 31, 2019Date of Patent: October 13, 2020Assignee: WISTRON CORP.Inventors: Cun Liu, Xin Sheng Wen, Jun Xin Qiu, Yong Qiang Li, Wen Long Yang
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Patent number: 10797121Abstract: A display apparatus includes a display area in which a plurality of pixels are disposed to display an image and a peripheral area which is a non-display area. The display apparatus includes a first power line which is disposed in the peripheral area and provides a first voltage to the plurality of pixels, and a second power line which is disposed in the peripheral area and provides a second voltage different from the first voltage to the plurality of pixels. At least a portion of the first power line overlaps the second power line in the peripheral area.Type: GrantFiled: August 9, 2018Date of Patent: October 6, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Dong-Hyun Lee, Deukjong Kim, Jaehak Lee
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Patent number: 10796619Abstract: A display device a includes: a display portion including pixels arranged in a matrix form; gate lines extending in a row direction for each pixel row and connected to the pixels; and a gate driver which applies a gate signal of a gate-on voltage to the plurality of gate lines. The gate driver applies the gate signal in the order of a k-th gate line, a (k+3)-th gate line, a (k+1)-th gate line, a (k+4)-th gate line, a (k+2)-th gate line, and a (k+5)-th gate line, where k is an integer greater than 1, and pixels connected to the k-th gate line and the (k+3)-th gate line display a first color, pixels connected to the (k+1)-th gate line and the (k+4)-th gate line display a second color, and pixels connected to the (k+2)-th gate line and the (k+5)-th gate line display a third color.Type: GrantFiled: January 11, 2018Date of Patent: October 6, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hyeon Seok Bae, Haeng Won Park
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Patent number: 10796645Abstract: A display apparatus includes a display panel, a gate driver, a data driver and a backlight assembly. The display panel includes a plurality of display blocks. The gate driver outputs a gate signal to the display panel. The data driver outputs a data voltage to the display panel. The backlight assembly provides light to the display panel. Sequences of outputting the gate signals from the gate driver to the display blocks are different from each other in adjacent frames.Type: GrantFiled: November 30, 2018Date of Patent: October 6, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jungmi Yun, Minyoung Park, Kihyun Pyun
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Patent number: 10796659Abstract: There is adopted a gate driver with a system of applying a direct current voltage as an active scanning signal to a gate bus line through a buffer transistor in a unit circuit that composes a shift register, and a display device is provided with a direct current voltage generation circuit that generates the direct current voltage. The direct current voltage generation circuit changes a voltage level of the direct current voltage in each frame period. For example, when a direct current voltage input terminal is provided on a vertical scanning end side, the direct current voltage generation circuit gradually decreases the voltage level of the direct current voltage in each frame period.Type: GrantFiled: April 22, 2019Date of Patent: October 6, 2020Assignee: SHARP KABUSHIKI KAISHAInventors: Akira Tagawa, Yasuaki Iwase, Takuya Watanabe, Takatsugu Kusumi, Yohei Takeuchi
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Patent number: 10796626Abstract: In an embodiment, a computing device includes a processor and a machine-readable storage medium storing instructions. The instructions may be executable by the hardware processor to: receive a request for an expanded refresh rate that is not supported by a display device; in response to the received request, determine a native refresh rate that is supported by a display device; mask a plurality of interrupts generated by display hardware at the determined native refresh rate; and send, at the requested expanded refresh rate, a plurality of emulated interrupts to an operating system in place of the masked plurality of interrupts generated by the display hardware. Other embodiments are described and claimed.Type: GrantFiled: February 7, 2019Date of Patent: October 6, 2020Assignee: Intel CorporationInventors: Ajay Saini, Yong-Joon Park, Sravan Akepati
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Patent number: 10788922Abstract: Provided are fingerprint/touch sensors and electronic devices including the same.Type: GrantFiled: July 26, 2018Date of Patent: September 29, 2020Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jaechul Park, Jinmyoung Kim, Byungkyu Lee
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Patent number: 10789903Abstract: A driving method, a driving device and a display device are provided. The driving method includes the following steps: defining a plurality of pixel groups, each pixel group including two columns of adjacent pixel units, each pixel unit including a number of sub-pixels; in the same column of pixel units, applying opposite polarities of the driving voltage to two adjacent columns of sub-pixels; applying opposite polarities of the driving voltage to the corresponding sub-pixels of two adjacent pixel groups; applying driving voltage of different voltage level to the sub-pixels of the two adjacent pixel groups.Type: GrantFiled: October 12, 2018Date of Patent: September 29, 2020Assignee: HKC CORPORATION LIMITEDInventor: Bei Zhou Huang
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Patent number: 10784289Abstract: The present application provides an array substrate. The array substrate in each of a plurality of subpixel areas includes a first thin film transistor having a first gate electrode connected to one of a plurality of gate lines, a first source electrode connected to one of a plurality of data lines, and a first drain electrode connected to a pixel electrode; a second thin film transistor having a second gate electrode, a second source electrode connected to the one of the plurality of data lines, and a second drain electrode connected to the pixel electrode; and a third thin film transistor having a third gate electrode connected to the one of the plurality of data lines, a third source electrode connected to the one of the plurality of gate lines, and a third drain electrode connected to the second gate electrode and one of a plurality of auxiliary signal lines.Type: GrantFiled: May 22, 2018Date of Patent: September 22, 2020Assignees: Chongqing BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Yulong Chen, Niannian Wang, Yong Xiong, Zhichang Liu, Xiaorui Tian, Linglong Lu, Ziwei Wang, Meng Wei, Xiang Zhang
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Patent number: 10783829Abstract: Provided is a display panel and display device. The display panel includes a first type sub-pixel and a second type sub-pixel. The first type sub-pixel includes a first voltage-regulating module, which is connected between a pixel drive circuit and a light-emitting component in the first type sub-pixel for increasing a voltage of two ends of the light-emitting component; and/or, the second type sub-pixel includes a second voltage-regulating module, which is connected between a pixel drive circuit and a light-emitting component in the second type sub-pixel for reducing a voltage between a first end and a second end of the light-emitting component.Type: GrantFiled: January 10, 2019Date of Patent: September 22, 2020Assignee: Shanghai Tianma AM-OLED Co., Ltd.Inventors: Liyuan Liu, Zhiyong Xiong, Tianqing Hu, Ping An
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Patent number: 10785356Abstract: The disclosure relates to the field of electronic devices, and discloses a display screen assembly and a mobile terminal, and the display screen assembly includes a primary screen, wherein the primary screen includes a transparent area, and a driving component, a camera, and a secondary screen arranged on a side of the primary screen away from a light exit face, wherein the driving component is configured to drive the camera and the secondary screen to be alternately arranged facing the transparent area. In the display screen assembly, the driving component drives the camera to face the transparent area to thereby take a picture, and drives the secondary screen to face the transparent area after the picture is taken, so that the camera is hidden below the primary screen.Type: GrantFiled: July 29, 2019Date of Patent: September 22, 2020Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventor: Guo Liu