Patents Examined by Yuzhen Shen
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Patent number: 10867560Abstract: An organic light emitting display device includes: a display panel including a plurality of pixel rows each including first pixel groups alternating with second pixel groups; a gate driver configured to provide a first group gate signal to the first pixel groups, and to provide a second group gate signal to the second pixel groups; a data driver configured to output data voltages to a plurality of output line groups; and a connection controller configured to connect the output line groups to a first data line group in response to a first connection control signal, and to connect the output line groups to a second data line group in response to a second connection control signal.Type: GrantFiled: October 23, 2018Date of Patent: December 15, 2020Assignee: Samsung Display Co., Ltd.Inventors: Changnoh Yoon, Jin-Wook Yang
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Patent number: 10861410Abstract: A display device includes a voltage generation circuit that generates a plurality of clock signals and a first driving voltage, a second driving voltage, and a third driving voltage. A gate driving circuit receives the generated clock signals and the first driving voltage, the second driving voltage, and the third driving voltage, and includes a plurality of driving stages each of which outputs a carry signal and a gate signal to a corresponding gate line among gate lines. The voltage generation circuit sets a voltage level of the third driving voltage based on a signal of a first node of at least one of the driving stages.Type: GrantFiled: October 24, 2018Date of Patent: December 8, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventor: Chang-soo Lee
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Patent number: 10859879Abstract: The present disclosure provides a liquid crystal grating, a method for driving the liquid crystal grating, and a display device. In the embodiments of the present disclosure, by applying the second voltage and the third voltage that are mutually inverted with respect to the common electrode voltage, the situation in which a single phase voltage is applied to all grating electrodes corresponding to the power-on optical state can be avoided. Due to the capacitance of liquid crystal, the influence of the second voltage on the common electrode voltage and the influence of the third voltage on the common electrode voltage cancel each other out. Therefore, the fluctuation of the common electrode voltage caused by the capacitance of liquid crystal can be effectively reduced or eliminated, thereby avoiding the failure of the liquid crystal grating.Type: GrantFiled: September 4, 2018Date of Patent: December 8, 2020Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Ming Yang, Xiaochuan Chen, Shengji Yang, Wenqing Zhao, Pengcheng Lu
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Patent number: 10854128Abstract: The present disclosure provides a display panel including: gate lines; data lines insulated from and intersecting with gate lines; pixel units; first and second clock signal lines; first and second power signal lines; gate driving units; and virtual driving units. Each gate driving unit has an output terminal electrically connected to gate lines, a first clock signal input terminal electrically connected to first clock signal line, and a second clock signal input terminal electrically connected to second clock signal line. Each virtual driving unit has an output terminal insulated from gate lines, a first clock signal input terminal insulated from first and second clock signal lines, and a second clock signal input terminal insulated from first and second clock signal lines. At least one virtual driving unit is disposed within the rounded angle region and located between two gate driving units.Type: GrantFiled: January 25, 2019Date of Patent: December 1, 2020Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Yana Gao, Xinzhao Liu, Yue Li, Xingyao Zhou, Kaihong Huang
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Patent number: 10852850Abstract: An example stylus pen including a body includes a central axis, a first end, and a second end. In addition, the stylus pen includes an engagement tip disposed at the first end and including resilient cover. Further, the stylus pen includes an adjustment mechanism at least partially disposed within the body and arranged such that manipulation of the adjustment mechanism by a user causes the cover of the engagement tip to actuate between a first shape and a second shape. The cover of the engagement tip is arranged to engage with a touch sensitive surface to cause a change in a computing device when in either one of the first shape and the second shape.Type: GrantFiled: March 4, 2019Date of Patent: December 1, 2020Assignee: Hewlett-Packard Development Company, L.P.Inventors: Ki Bok Song, Ilchan Lee, Dong Ryul Cha
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Patent number: 10853615Abstract: A fingerprint identification system is provided, which includes: a plurality of first pixel circuits; a first sensing circuit for outputting a first output signal; at least one second pixel circuit; a second sensing circuit for outputting a second output signal, wherein the second sensing circuit includes a second integration circuit having a second integral input terminal; a second calibration circuit coupled to the second integral input terminal; a third calibration circuit coupled to the second integral input terminal, wherein the second calibration circuit and the third calibration circuit are used for calibrating the second output signal; and a differential amplifier circuit coupled to the first sensing circuit and the second sensing circuit and used for generating an amplified output signal.Type: GrantFiled: September 13, 2018Date of Patent: December 1, 2020Assignee: SHENZHEN GOODIX TECHNOLOGY CO., LTD.Inventors: Hsin-Wen Fang, Kuo-Hao Chao
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Patent number: 10838568Abstract: The present application discloses a display substrate having a display area including a plurality of subpixel regions and an inter-subpixel region. The display substrate includes an array of matrix of a plurality of subpixels. Each subpixel includes a subpixel region surrounded by multiple sections of the inter-sub-pixel region and at least one antenna is in the inter-subpixel region and configured to detect an electromagnetic wave signal.Type: GrantFiled: September 8, 2017Date of Patent: November 17, 2020Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Chihjen Cheng, Yanling Han, Xiaoliang Ding, Xueyou Cao, Ping Zhang, Wei Liu, Pengpeng Wang
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Patent number: 10810405Abstract: A method may include measuring, photoplethysmography (PPG) data and capacitance data of an object. The method may also include, with the PPG data and the capacitance data, detecting, by a microprocessor, positive peaks of the data by comparing successive measurements. The method may further include finding, by the microprocessor, a maximum peak value of the detected positive peaks, and generating, by the microprocessor, a threshold value based on detected positive peaks. If the maximum peak value is greater than the threshold value, analyze, by the microprocessor, a fingerprint of the object. The method may also include determining, by the microprocessor, based on the PPG data, the capacitance data and the fingerprint of the object, at least one of if the object is authorized or unauthorized, and if the object is a human being or not a human being.Type: GrantFiled: August 8, 2018Date of Patent: October 20, 2020Assignee: QATAR UNIVERSITYInventors: John-John Cabibihan, Kishor Kumar Sadasivuni, Ahmad Yaser Alhaddad
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Patent number: 10810400Abstract: The present application provides a fingerprint identification module and a package structure of a fingerprint identification chip. The fingerprint identification module includes: a fingerprint identification chip and a package structure for packaging the fingerprint identification chip. The package structure leaves a fingerprint sensing region of the fingerprint identification chip exposed, an upper surface of a film layer of the fingerprint sensing region is provided with a protection layer with a predetermined thickness. The protection layer is exposed in the fingerprint sensing region outside the package structure and causes the fingerprint identification chip to have a predefined fingerprint identification distance.Type: GrantFiled: September 13, 2018Date of Patent: October 20, 2020Assignee: SHENZHEN GOODIX TECHNOLOGY CO., LTD.Inventors: Baoquan Wu, Wei Long, Yuping Liu
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Patent number: 10810964Abstract: A display device includes a display unit including a plurality of pixels, each of the pixels including a plurality of subpixels, and a display area having a corner of a non-right angular shape, and a signal controller controlling the display unit to display an image based on an input image signal and a control signal and changing a gray value of the image signal based on different light transmittance values of subpixels included in a first pixel, among the plurality of pixels, positioned at the corner of the non-right angular shape if the image signal corresponds to the first pixel at the corner of the non-right angular shape.Type: GrantFiled: November 7, 2017Date of Patent: October 20, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Sung Jae Park, Jae-Gwan Jeon, Kyung Su Lee, Dong Won Park, Dong Hwa Shin
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Patent number: 10810928Abstract: A method of driving a display by communicating with a controller through a first channel and a second channel includes; generating recovery data from a signal received through the first channel during a frame data period, detecting a vertical blank period between frame data periods, checking a training trigger event history during the vertical blank period, and during the vertical blank period, transmitting a training request direct to the first channel through the second channel when there is a training trigger event history.Type: GrantFiled: October 23, 2018Date of Patent: October 20, 2020Assignee: Samsung Electronics Co., Ltd.Inventors: Hyun-Wook Lim, Dong-Myung Lee, Jae-Suk Yu, Kil-Hoon Lee, Jae-Youl 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: 10777154Abstract: The disclosure relates to a driving method and a driving device for a display panel and a display device, wherein the display panel includes a plurality of first pixel units and a plurality of second pixel units which are disposed adjacently. The driving method includes dividing a plurality of pixel units of the display panel into a plurality of pixel unit groups; driving subpixels in first pixel units and subpixels in second pixel units by using drive voltages of different voltage levels; driving the subpixels arranged in the same line in every two adjacent pixel unit groups by using the drive voltages of opposite polarities; and driving every continuously arranged four lines of pixel units in the same one of the pixel unit groups by using the drive voltages of different polarities.Type: GrantFiled: October 16, 2018Date of Patent: September 15, 2020Assignee: HKC CORPORATION LIMITEDInventor: Bei Zhou Huang
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Patent number: 10777133Abstract: An OLED display device includes a pixel having a switching transistor turned on by a scan signal received from a scan line and which transmits a data signal received from a data line to a first node, a driving transistor connected between the first node and a second node and through which a driving current corresponding to the data signal flows, a storage capacitor including one end connected to a power supply and another end connected to a gate electrode of the driving transistor, an OLED emitting light by the driving current, and a light emission control transistor connected between the second node and an anode of the OLED and which is turned on by an light emission control signal and transmits the driving current to the OLED. The switching transistor may be an n-type transistor, and the light emission control transistor is a p-type transistor.Type: GrantFiled: November 7, 2017Date of Patent: September 15, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Sang Jin Jeon, Sang-Uk Lim
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Patent number: 10770000Abstract: A pixel circuit, a driving method, a display panel and a display device. The pixel circuit includes: at least two pixel sub-circuits, a data line, a first scan line, a second scan line, a third scan line and a light-emitting control line. The pixel sub-circuit includes: a light-emitting control sub-circuit, a node reset sub-circuit, a drive control sub-circuit, a write sub-circuit and a light emitting device. The light-emitting control sub-circuit is configured to provide a signal provided by the first voltage signal end to a first node; the node reset sub-circuit is configured to form a conductive path between the first node and a second node; the write sub-circuit is configured to write a data signal provided by the data signal end and a threshold voltage to the second node; and the drive control sub-circuit is configured to drive the light emitting device to emit light.Type: GrantFiled: April 24, 2018Date of Patent: September 8, 2020Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Shengji Yang, Xue Dong, Jing Lv, Xiaochuan Chen, Minghua Xuan, Lei Wang, Dongni Liu, Li Xiao, Jie Fu, Pengcheng Lu
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Patent number: 10768723Abstract: An electronic pen includes a magnetic core that has a through-hole and around which a coil is wound in a direction along this through-hole, a core body that is inserted in the through-hole of this magnetic core and has electrical conductivity, a capacitor that forms a resonant circuit with the coil, a signal generation circuit that generates a signal that enables a position of the electronic pen to be detected, which is transmitted through the core body, an electricity storage device, and a charge circuit that charges the electricity storage device by an induced current generated in the coil according to an external magnetic field. While the resonant circuit operates, the signal generated by the signal generation circuit is concurrently transmitted through the core body.Type: GrantFiled: September 6, 2017Date of Patent: September 8, 2020Assignee: Wacom Co., Ltd.Inventors: Yuji Katsurahira, Toru Eguchi
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Patent number: 10762848Abstract: A display device is provided that includes a panel driving circuit configured to control the power supply unit to be disabled in response to a low-power mode and adjust a length of time required for a voltage level applied to high-potential voltage lines to transition from a first high-potential voltage to a second high-potential voltage. Thus, it is possible to suppress display of an abnormal image on a display panel in the low-power mode, and a length of time for transitioning from the normal mode to the low-power mode can be adjusted, and, thus, the brightness of the display panel can be naturally changed.Type: GrantFiled: January 8, 2019Date of Patent: September 1, 2020Assignee: LG Display Co., Ltd.Inventors: Hyunbeen Yim, DoWan Kim
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Patent number: 10748496Abstract: The disclosure relates to a driving method and a driving device for a display panel, and a display device, wherein the driving method includes dividing a plurality of pixel units of the display panel into a plurality of pixel groups, wherein each pixel group includes three columns of continuously arranged pixel units; applying a drive voltage opposite to a polarity of a first position pixel unit to a second position pixel unit and a third position pixel unit in a same pixel group respectively; applying drive voltages of opposite polarities to every adjacent two columns of the sub-pixels in a same column of the pixel units respectively, and applying drive voltages of different voltage levels to the sub-pixels in the first pixel units and the sub-pixels in the second pixel units respectively; wherein the first pixel units and the second pixel units are adjacently disposed in the display panel.Type: GrantFiled: October 12, 2018Date of Patent: August 18, 2020Assignee: HKC CORPORATION LIMITEDInventor: Bei Zhou Huang
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Patent number: 10741118Abstract: Provided are a light-emitting diode (LED) display device and a method of operating the LED display device determining whether a line flicker will occur based on a level of an input image signal, obtaining an LED line scan order corresponding to the level of the input image signal and brightness according to the input image signal based on the determining, and driving at least one LED line based on the LED line scan order. An LED line scan order may be adjusted according to a level of an input/output image signal in an LED display device so as to reduce occurrence of a line flicker phenomenon in all levels of the input/output image signal.Type: GrantFiled: November 3, 2017Date of Patent: August 11, 2020Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ji-yong Park, Sang-kyun Im, Young-hoon Cho, Hye-rin Choi
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Patent number: 10732740Abstract: A pressure sensing pattern layer is formed on a substrate and comprises a plurality of pressure sensing electrodes. Each of the pressure sensing electrodes comprises a plurality of protruding portions. The protruding portions are formed from a transparent conductive line which is bent zigzag. Each of the pressure sensing electrodes is electrically connected to a Wheatstone bridge circuit through a first conductive line and a second conductive line. A resistance of each of the pressure sensing electrodes is an element of the Wheatstone bridge circuit. When any of the pressure sensing electrodes is touched, a variation of the resistance of the touched pressure sensing electrode is detected by the Wheatstone bridge circuit.Type: GrantFiled: July 10, 2016Date of Patent: August 4, 2020Assignee: TPK Touch Solutions (Xiamen) Inc.Inventors: Feng Chen, Kunxiong Ye, Xiaoli Qiu
