Patents by Inventor Xiaolong Chen

Xiaolong Chen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20180374419
    Abstract: The present application provides a pixel driving circuit, which comprises a driving transistor, a first switch, a second switch, a third switch, a fourth switch, a first capacitor, a second capacitor, an initial-voltage-signal terminal, a data-voltage-signal terminal, a reset-voltage-signal terminal, and a driving-voltage-signal terminal. The driving transistor comprises a gate terminal, a source terminal, and a drain terminal. The first capacitor is connected between the source terminal and the gate terminal, the second capacitor is connected between the source terminal and a charge-voltage terminal. The charge-voltage terminal is respectively connected with the reset-voltage-signal terminal and the data-voltage-signal terminal via the first switch and the second switch. The drain terminal is connected with the driving-voltage-signal terminal via the third switch. The gate terminal is connected with the initial-voltage-signal terminal via the fourth switch.
    Type: Application
    Filed: November 30, 2017
    Publication date: December 27, 2018
    Applicant: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventors: Xiaolong CHEN, Yi-Chien WEN, Ming-Jong JOU
  • Publication number: 20180374418
    Abstract: The present application provides a pixel driving circuit, which comprises a driving transistor, a first switch, a second switch, a third switch, a fourth switch, a first capacitor, a second capacitor, an initial-voltage-signal terminal, a data-voltage-signal terminal, and a driving-voltage-signal terminal. The driving transistor comprises a gate terminal, a source terminal, and a drain terminal. The first switch is disposed between the gate terminal and the drain terminal. The gate terminal is connected with the initial-voltage-signal terminal via the second switch. The source terminal is connected with the driving-voltage-signal terminal and the data-voltage-signal terminal via the third switch and the fourth switch, respectively. The first capacitor is connected between the gate terminal and a ground terminal. The second capacitor is connected between the gate terminal and the source terminal. The present application further provides a pixel driving method and a display panel.
    Type: Application
    Filed: November 30, 2017
    Publication date: December 27, 2018
    Applicant: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventors: Xiaolong CHEN, Yi-Chien WEN, Ming-Jong JOU
  • Publication number: 20180374420
    Abstract: The present application provides a pixel driving circuit, which comprises a driving transistor, which comprises a gate terminal, a source terminal, and a drain terminal. The source terminal is respectively connected with a driving-voltage-signal terminal and a charge-voltage terminal via a first switch and a second switch. The charge-voltage terminal is connected with a data-voltage-signal terminal via a third switch. The gate terminal is connected with an initial-voltage-signal terminal via a fourth switch, and the gate terminal is connected with the drain terminal via a fifth switch. A first capacitor is connected with the gate terminal and the charge-voltage terminal, a second capacitor is connected with the gate terminal and a ground terminal. The present application further provides a pixel driving method and a display panel.
    Type: Application
    Filed: November 30, 2017
    Publication date: December 27, 2018
    Applicant: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventors: Xiaolong CHEN, Yi-Chien WEN, Ming-Jong JOU
  • Publication number: 20180374421
    Abstract: The present application provides a pixel driving circuit, which comprises a driving transistor which comprises a gate terminal, a source terminal, and a drain terminal. The first switch is connected between the gate terminal and the drain terminal. The gate terminal is connected with the reset-voltage-signal terminal via the second switch. The source terminal is respectively connected with the driving-voltage-signal terminal and the data-voltage-signal terminal via the third switch and the fourth switch. The first capacitor is connected between the gate terminal and the charge-voltage terminal. The charge-voltage terminal is connected with a control terminal of the first switch. The second capacitor is connected between the gate terminal and the driving-voltage-signal terminal. The present application further provides a display panel.
    Type: Application
    Filed: November 30, 2017
    Publication date: December 27, 2018
    Applicant: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventors: Xiaolong CHEN, Yi-Chien WEN, Ming-Jong JOU
  • Patent number: 10074309
    Abstract: The present invention provides an AMOLED pixel driving circuit and an AMOLED pixel driving method. The AMOLED pixel driving circuit utilizes the 6T1C structure pixel driving circuit with a specific drive timing and can effectively compensate the threshold voltage of the drive thin film transistor and can stabilize the current flowing through the organic light emitting diode to ensure the uniform brightness of the organic light emitting diode and improve the display effect of the pictures. The organic light emitting diode can emit light only in the light emitting stage to avoid the unnecessary irradiance of the organic light emitting diode to reduce the electrical power consumption.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: September 11, 2018
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Xiaolong Chen, Yichien Wen, Mingjong Jou
  • Publication number: 20180233080
    Abstract: The present invention provides an AMOLED pixel driving circuit and an AMOLED pixel driving method. The AMOLED pixel driving circuit utilizes the 6T1C structure pixel driving circuit with a specific drive timing and can effectively compensate the threshold voltage of the drive thin film transistor and can stabilize the current flowing through the organic light emitting diode to ensure the uniform brightness of the organic light emitting diode and improve the display effect of the pictures. The organic light emitting diode can emit light only in the light emitting stage to avoid the unnecessary irradiance of the organic light emitting diode to reduce the electrical power consumption.
    Type: Application
    Filed: March 15, 2017
    Publication date: August 16, 2018
    Inventors: Xiaolong Chen, Yichien Wen, Mingjong Jou
  • Publication number: 20180226026
    Abstract: The present disclosure provides a light emitting drive circuit and an organic light emitting display. The circuit includes: the reset memory module for resetting the driving module and for generating and storing a threshold offset voltage corresponding to the driving module; the driving module is used for generating a light emission drive voltage in a light emission phase in accordance with a power supply positive voltage, a stored threshold compensation voltage, and a light emission control signal; the light emitting module is configured to emit light, and the light emission driving voltage is a difference between the power supply positive voltage and the data voltage. The driving voltage (or drive current) of the light emission is independent of the threshold voltage for driving the thin film transistor. This eliminates the problem that the threshold voltage drift of the driving thin film transistor causes the screen display to be poor.
    Type: Application
    Filed: January 18, 2017
    Publication date: August 9, 2018
    Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Xiaolong CHEN, Ming-jong JOU
  • Publication number: 20180211601
    Abstract: The invention provides an AMOLED pixel driver circuit and pixel driving method. The AMOLED pixel driver circuit has a 6T1C structure, comprising a first thin film transistor (TFT) (T1), a second TFT (T2) forming mirror relation with the first TFT (T1), a third TFT (T3), a fourth TFT (T4), a fifth TFT (T5), a sixth TFT (T6), a capacitor (C1), and an organic light-emitting diode (OLED) (D1), and receiving a first scan signal (Scan1), a second scan signal (Scan2), a third scan signal (Scan3), a light-emitting signal (EM), a data signal (Data), and a reference voltage (Vref). The circuit can effectively compensate the threshold voltage of the driving TFT to solve the problem of unstable current flowing through the OLED caused by the threshold voltage drift to ensure uniform luminance of the OLED and improve the display quality.
    Type: Application
    Filed: December 20, 2016
    Publication date: July 26, 2018
    Inventors: Xiaolong CHEN, Mingjong JOU, Yichien WEN
  • Publication number: 20180061300
    Abstract: Disclosed is an OLED-PWM driving method, which includes looking up, based on a look-up table, assignment of bright subframes and non-bright subframes of each gray scale value in a whole frame, and scattering, based on the assignment of bright subframes and non-bright subframes of each gray scale value in the whole frame, corresponding gray scale energy according to a predetermined rule, so that the gray scale energy is uniformly distributed in the whole frame.
    Type: Application
    Filed: January 9, 2017
    Publication date: March 1, 2018
    Inventors: Xiaolong Chen, Ming Jong Jou, Chih Hao Wu
  • Patent number: 9893152
    Abstract: A semi-insulating silicon carbide monocrystal and a method of growing the same are disclosed. The semi-insulating silicon carbide monocrystal comprises intrinsic impurities, deep energy level dopants and intrinsic point defects. The intrinsic impurities are introduced unintentionally during manufacture of the silicon carbide monocrystal, and the deep energy level dopants and the intrinsic point defects are doped or introduced intentionally to compensate for the intrinsic impurities. The intrinsic impurities include shallow energy level donor impurities and shallow energy level acceptor impurities. A sum of a concentration of the deep energy level dopants and a concentration of the intrinsic point defects is greater than a difference between a concentration of the shallow energy level donor impurities and a concentration of the shallow energy level acceptor impurities, and the concentration of the intrinsic point defects is less than the concentration of the deep energy level dopants.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: February 13, 2018
    Assignee: Institute of Physics, Chinese Academy of Sciences
    Inventors: Xiaolong Chen, Chunjun Liu, Tonghua Peng, Longyuan Li, Bo Wang, Gang Wang, Wenjun Wang, Yu Liu
  • Patent number: 9881553
    Abstract: An OLED drive system raising a frame contrast and a drive method are disclosed. The OLED display panel is equally divided into a plurality of display divisions along a vertical direction. The brightness calculation module is employed to calculate average pixel brightnesses corresponding to the respective display divisions in the OLED display panel. On one hand, the power management module is employed to supply different reference voltages for the respective display divisions correspondingly according to the average pixel brightnesses of the respective display divisions in the OLED display panel, and respectively insert the reference voltages of the respective display divisions into reference voltage lines corresponding to the pixels of middle rows in the display divisions to make the reference voltages of the respective display divisions be different for raising the frame contrast.
    Type: Grant
    Filed: October 12, 2015
    Date of Patent: January 30, 2018
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Xiaolong Chen, Chihhao Wu, Mingfeng Chen
  • Patent number: 9819856
    Abstract: A method for a device to adjust a shooting parameter, includes: receiving a click signal triggered from a viewfinder displayed on a touchscreen; displaying, by taking a click position indicated by the click signal as a reference position, an adjusting control corresponding to a shooting parameter; receiving a sliding touch signal indicating a sliding touch operation on the adjusting control; and adjusting the shooting parameter according to the sliding touch signal.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: November 14, 2017
    Assignee: Xiaomi Inc.
    Inventors: Chong Guo, Ling Zhu, Xiaolong Chen, Xiaowei Hu, Haipo Zhang
  • Publication number: 20170163266
    Abstract: The present invention provides an OLED drive system raising a frame contrast and a drive method. The OLED display panel (4) is equally divided into a plurality of display divisions along a vertical direction. The brightness calculation module (2) is employed to calculate average pixel brightnesses corresponding to the respective display divisions in the OLED display panel (4).
    Type: Application
    Filed: October 12, 2015
    Publication date: June 8, 2017
    Inventors: Xiaolong Chen, Chihhao Wu, Mingfeng Chen
  • Publication number: 20170155214
    Abstract: A USB Type-C interface chip having a CC pin. In an embodiment, the chip includes an internal unit coupled through a signal path to the CC pin; a high voltage detection unit coupled in the signal path, for detecting a voltage at the CC pin and comparing the detected voltage and a reference voltage; a high voltage protection unit for protecting, in response to the comparison result of the high voltage detection unit the internal unit from high voltage possibly present at the port of the chip.
    Type: Application
    Filed: November 23, 2016
    Publication date: June 1, 2017
    Applicant: International Green Chip (Tianjin) Co., Ltd.
    Inventors: Yu SHEN, Xiaolong CHEN
  • Patent number: 9641737
    Abstract: A method for performing time-delay photographing, includes: displaying a photographing interface including a shutter operation control, wherein the shutter operation control further includes a shutter button and a time-setting region outside the shutter button; determining a delay time for photographing according to the time-setting region; and photographing according to the delay time.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: May 2, 2017
    Assignee: Xiaomi Inc.
    Inventors: Chong Guo, Ling Zhu, Haipo Zhang, Xiaolong Chen
  • Patent number: 9500931
    Abstract: Provided is a nonlinear optical device manufactured with 4H silicon carbide crystal. The nonlinear optical crystal may be configured to alter at least a light beam (12) at a frequency to generate at least a light beam (16) at a further frequency different from the frequency. The nonlinear optical crystal comprises a 4H silicon carbide crystal (13). The nonlinear optical device is more compatible with practical applications in terms of outputting mid-infrared laser at high power and high quality and thus are more applicable in practice, because the 4H silicon carbide crystal has a relatively high laser induced damage threshold, a relatively broad transmissive band (0.38-5.9 ?m and 6.6-7.08 ?m), a relatively great 2nd-order nonlinear optical coefficient (d15=6.7 pm/V), a relatively great birefringence, a high thermal conductivity (490 Wm?1K?1), and a high chemical stability.
    Type: Grant
    Filed: January 6, 2012
    Date of Patent: November 22, 2016
    Assignee: Institute of Physics, Chinese Academy of Sciences
    Inventors: Xiaolong Chen, Shunchong Wang, Tonghua Peng, Gang Wang, Chunjun Liu, Wenjun Wang, Shifeng Jin
  • Patent number: 9491371
    Abstract: The present disclosure discloses a method and a device for configuring photographing parameters, which relate to the field of terminal device technology. The method for configuring photographing parameters in a main device includes: acquiring photographing parameters, which include at least an output color temperature and an output time, for configuring a supplemental device with a flashlight component capable of adjusting color temperature according to a currently set photographing mode; and transmitting the photographing parameters to the supplemental device through a wireless data network, such that the supplemental device sets an output color temperature and an output time of the flashlight component in the supplemental device according to the photographing parameters when photographing.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: November 8, 2016
    Assignee: XIAOMI INC.
    Inventors: Xiaolong Chen, Ling Zhu, Lin Liu, Yanjiong Wang
  • Patent number: 9340898
    Abstract: A technology for growing silicon carbide single crystals by PVT (Physical Vapor Transport) and a technology for in-situ annealing the crystals after growth is finished is provided. The technology can achieve real-time dynamic control of the temperature distribution of growth chamber by regulating the position of the insulation layer on the upper part of the graphite crucible, thus controlling the temperature distribution of growth chamber in real-time during the growth process according to the needs of the technology, which helps to significantly improve the crystal quality and production yield.
    Type: Grant
    Filed: November 11, 2011
    Date of Patent: May 17, 2016
    Assignees: Tankeblue Semiconductor Co. Ltd., Institute of Physics Chinese Academy of Sciences
    Inventors: Xiaolong Chen, Bo Wang, Longyuan Li, Tonghua Peng, Chunjun Liu, Wenjun Wang, Gang Wang
  • Publication number: 20160127638
    Abstract: A method for a device to adjust a shooting parameter, includes: receiving a click signal triggered from a viewfinder displayed on a touchscreen; displaying, by taking a click position indicated by the click signal as a reference position, an adjusting control corresponding to a shooting parameter; receiving a sliding touch signal indicating a sliding touch operation on the adjusting control; and adjusting the shooting parameter according to the sliding touch signal.
    Type: Application
    Filed: January 12, 2016
    Publication date: May 5, 2016
    Inventors: Chong Guo, Ling Zhu, Xiaolong Chen, Xiaowei Hu, Haipo Zhang
  • Patent number: D789974
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: June 20, 2017
    Assignee: XIAOMI INC.
    Inventors: Chong Guo, Xiaolong Chen, Xiaowei Hu