Patents by Inventor Yucheng Lu

Yucheng Lu 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).

  • Patent number: 11537182
    Abstract: The present invention discloses a display panel, a chip and a flexible circuit board. The display panel includes a panel body and at least two signal transmission circuits. The signal transmission circuit includes a line input terminal used for binding to a flexible circuit board, which is disposed at the peripheral area, a signal transmission line, and a line output terminal used for binding to a chip, which is disposed at the peripheral area. At least two of the line output terminals are arranged in a two-dimensional array. The present invention can reduce the impedance of a part of the signal transmission line.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: December 27, 2022
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD
    Inventors: Gonghua Zou, Yucheng Lu, Xiang Yang
  • Patent number: 11406017
    Abstract: A flexible printed circuit board, a display panel, and a display device are disclosed. The flexible printed circuit board includes a first input portion, and at least a first output portion disposed on the first input portion. The first input portion and the first output portion are disposed at different sides of the flexible printed circuited board. The first output portion includes a plurality of first output terminals, and each of the first output terminals of the first output portion is spaced apart at a different distance from a top end of the first output portion.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: August 2, 2022
    Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd.
    Inventors: Gonghua Zou, Yucheng Lu, Xiang Yang
  • Publication number: 20220030714
    Abstract: A flexible printed circuit board, a display panel, and a display device are disclosed. The flexible printed circuit board includes a first input portion, and at least a first output portion disposed on the first input portion. The first input portion and the first output portion are disposed at different sides of the flexible printed circuited board. The first output portion includes a plurality of first output terminals, and each of the first output terminals of the first output portion is spaced apart at a different distance from a top end of the first output portion.
    Type: Application
    Filed: May 21, 2019
    Publication date: January 27, 2022
    Inventors: Gonghua ZOU, Yucheng LU, Xiang YANG
  • Publication number: 20210294394
    Abstract: The present invention discloses a display panel, a chip and a flexible circuit board. The display panel includes a panel body and at least two signal transmission circuits. The signal transmission circuit includes a line input terminal used for binding to a flexible circuit board, which is disposed at the peripheral area, a signal transmission line, and a line output terminal used for binding to a chip, which is disposed at the peripheral area. At least two of the line output terminals are arranged in a two-dimensional array. The present invention can reduce the impedance of a part of the signal transmission line.
    Type: Application
    Filed: May 20, 2019
    Publication date: September 23, 2021
    Inventors: Gonghua ZOU, Yucheng LU, Xiang YANG
  • Publication number: 20210277914
    Abstract: An oblique flow booster fan includes an impeller having an impeller body and a plurality of blades, each blade spirally extended from top to bottom, two ends of each blade provided an upper edge and a lower edge respectively, and the upper edge having a width larger than the lower edge; an air guide assembly including an outer ring, an inner cylinder spaced apart in the outer ring, and air guide vanes evenly connected between the outer ring and the inner cylinder; a motor installed in the inner cylinder and having a rotating shaft connected to the impeller body; and a pressurization volute casing arranged outside the impeller and connected to the outer ring, one end of the pressurization volute casing provided with an air inlet, and another end of the outer ring provided with an air outlet. The fan is high wind pressure and low noise.
    Type: Application
    Filed: August 28, 2020
    Publication date: September 9, 2021
    Inventors: Yucheng Lu, Shengcheng Lu
  • Patent number: 10222907
    Abstract: The touch display panel drive circuit provided by the present invention comprises a data line drive unit, a plurality of gate lines and a plurality of data lines, and a junction of two adjacent gate lines and two adjacent data lines forms a pixel region, and a pixel switch is located inside the pixel region; the touch display panel drive circuit further comprises a data line switch between the data line and the data line drive unit; as the data line drive unit does not output the data signal, an output of the data line switch is a high-impedance state, and the data line drive unit is disconnected with the pixel switch. The present invention can prevent the error reading phenomenon generated by the transistor leakage, and can enhance the display brightness and the stability of the display image, and promote the display effect of the touch display panel.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: March 5, 2019
    Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd
    Inventors: Yucheng Lu, Feilin Ji
  • Patent number: 10223989
    Abstract: Provided is a driving method of a liquid crystal display panel, comprising: inputting an activation voltage to the scan lines from a first direction in a first duration, and inputting a pixel voltage of a first polarity to the data lines to charge the pixel capacitors; inputting an activation voltage to the scan lines from the first direction in a second duration, and inputting a pixel voltage of a second polarity to the data lines to charge the pixel capacitors; inputting an activation voltage to the scan lines from a second direction in a third duration, and inputting the pixel voltage of the first polarity to the data lines to charge the pixel capacitors; inputting an activation voltage to the scan lines from the second direction in a fourth duration, and inputting the pixel voltage of the second polarity to the data lines to charge the pixel capacitors.
    Type: Grant
    Filed: March 18, 2017
    Date of Patent: March 5, 2019
    Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd
    Inventors: Yucheng Lu, Chun-hung Huang
  • Patent number: 10192499
    Abstract: A driving device for liquid crystal panel comprising: a scanning driver for applying a scanning voltage to pixels arranged as a matrix row by row; and a data driver for receiving an image data and a polarity inversion signal, obtaining original data voltages according to the image data, determining if amplifying the original data voltages along a scanning direction according to the polarity inversion signal, and providing the original data voltages or data voltage after being amplified to pixels. A driving method is also disclosed. When polarity inversion signal is inverted to a positive polarity from a negative polarity, the data voltages applied on the data line are gradually increased along a scanning direction. Accordingly, when the polarity inversion signal is inverted to a negative polarity from a positive polarity, the pixel which leaks current seriously is charged with a larger amount of charges, uneven display brightness is obviously decreased.
    Type: Grant
    Filed: December 30, 2016
    Date of Patent: January 29, 2019
    Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd
    Inventor: Yucheng Lu
  • Publication number: 20180293948
    Abstract: A driving device for liquid crystal panel comprising: a scanning driver for applying a scanning voltage to pixels arranged as a matrix row by row; and a data driver for receiving an image data and a polarity inversion signal, obtaining original data voltages according to the image data, determining if amplifying the original data voltages along a scanning direction according to the polarity inversion signal, and providing the original data voltages or data voltage after being amplified to pixels. A driving method is also disclosed. When polarity inversion signal is inverted to a positive polarity from a negative polarity, the data voltages applied on the data line are gradually increased along a scanning direction. Accordingly, when the polarity inversion signal is inverted to a negative polarity from a positive polarity, the pixel which leaks current seriously is charged with a larger amount of charges, uneven display brightness is obviously decreased.
    Type: Application
    Filed: December 30, 2016
    Publication date: October 11, 2018
    Applicant: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Yucheng LU
  • Publication number: 20180286331
    Abstract: Provided is a driving method of a liquid crystal display panel, comprising: inputting an activation voltage to the scan lines from a first direction in a first duration, and inputting a pixel voltage of a first polarity to the data lines to charge the pixel capacitors; inputting an activation voltage to the scan lines from the first direction in a second duration, and inputting a pixel voltage of a second polarity to the data lines to charge the pixel capacitors; inputting an activation voltage to the scan lines from a second direction in a third duration, and inputting the pixel voltage of the first polarity to the data lines to charge the pixel capacitors; inputting an activation voltage to the scan lines from the second direction in a fourth duration, and inputting the pixel voltage of the second polarity to the data lines to charge the pixel capacitors.
    Type: Application
    Filed: March 18, 2017
    Publication date: October 4, 2018
    Applicant: Wuhan China Star Optoelectronics Technology Co., Ltd.
    Inventors: Yucheng LU, Chun-hung HUANG
  • Patent number: 9990074
    Abstract: A driving circuit for touch screen, a touch screen, and an electronic terminal are disclosure. The driving circuit for touch screen comprises: a control circuit, used for generating and outputting a scanning signal and a data selection signal according to a position of an electrode to be driven; and a data selection circuit, an input end thereof being connected with said control circuit, output ends thereof each being connected with a corresponding scanning end of the touch screen, wherein the data selection circuit is configured to turn on or turn off a connection between an input end thereof and an output end corresponding to the electrode to be driven according to said data selection signal. In the driving circuit, the influence on the following detection of the touch points generated by the attenuation of the scanning signal during transmission process can be reduced effectively, so that the reliability and accuracy of the detection result can be ensured.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: June 5, 2018
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Yucheng Lu, Xiaoping Tan, Xiang Yang
  • Publication number: 20180113561
    Abstract: The touch display panel drive circuit provided by the present invention comprises a data line drive unit, a plurality of gate lines and a plurality of data lines, and a junction of two adjacent gate lines and two adjacent data lines forms a pixel region, and a pixel switch is located inside the pixel region; the touch display panel drive circuit further comprises a data line switch between the data line and the data line drive unit; as the data line drive unit does not output the data signal, an output of the data line switch is a high-impedance state, and the data line drive unit is disconnected with the pixel switch. The present invention can prevent the error reading phenomenon generated by the transistor leakage, and can enhance the display brightness and the stability of the display image, and promote the display effect of the touch display panel.
    Type: Application
    Filed: May 23, 2016
    Publication date: April 26, 2018
    Applicant: Wuhan China Star Optoelectronics Technology Co., Ltd.
    Inventors: Yucheng LU, Feilin JI
  • Publication number: 20180116046
    Abstract: A display panel and a display terminal are disclosed. The display panel includes a display, a main board, and a FPC board connecting the display and the main board together. The FPC board has a portion of its surface attached with an EMI shielding layer. At least an edge of the EMI shielding layer is an edge with curves. The FPC board simplifies the assembly of the display panel, reduces production cost and maintenance inconvenience, and contributes to the display panel's downsizing. The EMI shielding layer prevents noises of different frequency ranges from affecting the display signals. The at least one edge with curves of the EMI shielding layer lessens stress between and therefore protects the EMI shielding layer and the FPC board from damages.
    Type: Application
    Filed: June 23, 2016
    Publication date: April 26, 2018
    Applicant: Wuhan China Star Optoelectronics Technology Co. Ltd.
    Inventors: Yucheng LU, Hongrui CAO
  • Patent number: 9886890
    Abstract: A display device and a method for displaying an image thereof are disclosed. The display device includes a display panel, a gray scale voltage output circuit, a common voltage output circuit and a control circuit. The display panel, according to a first gray scale voltage signal and a first common voltage signal, display an image; the control circuit is used for controlling the gray scale voltage output circuit and the common voltage output circuit to output a second gray scale voltage signal and a second common voltage to the display panel when at a predetermined time to display another image. The present invention can cause the blink rate to be maintained over time at a relatively stable range.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: February 6, 2018
    Assignees: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD., WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Yucheng Lu, Xiang Yang, Xiaoping Tan
  • Patent number: 9857407
    Abstract: The present invention discloses a detection circuit and a detection method of a self-capacitance touch screen. The detection circuit comprises a charging module and a voltage measuring module.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: January 2, 2018
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Yucheng Lu
  • Publication number: 20170193882
    Abstract: A display device and a method for displaying an image thereof are disclosed. The display device includes a display panel, a gray scale voltage output circuit, a common voltage output circuit and a control circuit. The display panel, according to a first gray scale voltage signal and a first common voltage signal, display an image; the control circuit is used for controlling the gray scale voltage output circuit and the common voltage output circuit to output a second gray scale voltage signal and a second common voltage to the display panel when at a predetermined time to display another image. The present invention can cause the blink rate to be maintained over time at a relatively stable range.
    Type: Application
    Filed: October 9, 2015
    Publication date: July 6, 2017
    Applicants: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD., WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Yucheng Lu, Xiang Yang, Xiaoping Tan
  • Patent number: 9671902
    Abstract: The present invention discloses a liquid crystal display having touch function and a touch detection method thereof. The liquid crystal display comprises a display module and a touch module, and the display module and the touch module share a common electrode. The display module sequentially executes a plurality of operations of gate drive and gray scale drive in each frame. The touch module executes operations of touch detection as the display module executes a present operation of gate drive and gray scale drive and a voltage of the common electrode is in stable. With the aforementioned arrangement, the present invention is capable of reducing the interference of the display signals and the touch signals to improve the display quality and touch effect.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: June 6, 2017
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Yucheng Lu, Chunpeng Guo, Zhenzhou Xing
  • Publication number: 20170153758
    Abstract: A touch display device, a controlling method, and a circuit thereof are disclosed. During a touch stage, under the control of a control circuit, the TFTs of the touch display device are all turned off, and a same control signal is provided to the data line and the common electrode. The data line and the common electrode always have a same electric potential during the touch stage, and thus the parasite capacitor that is formed by the data line and the common electrode cannot be charged. According to the present disclosure, the influence of the aforesaid parasite capacitor on the touch detection signal can be avoided effectively, and thus the accuracy of the touch detection can be improved.
    Type: Application
    Filed: June 18, 2015
    Publication date: June 1, 2017
    Applicants: Shenzhen China Star Optoelectronics Technology CO., Ltd., Wuhan China Star Optoelectronics Technology
    Inventors: Yucheng Lu, Chun Hung Huang, Yao Li Huang
  • Patent number: 9563312
    Abstract: A display panel having a touch function, a display device, and a control method. The panel includes a first substrate having multiple pixel units. Each pixel unit includes a liquid crystal capacitor, a first switch, a second switch, and a first storage capacitor. A control, an input, and an output terminal of the first switch are respectively connected with a first controller, the liquid crystal capacitor, and the first storage capacitor. A control, an input, and an output terminal of the second switch are respectively connected with a signal controller, a common electrode, and the liquid crystal capacitor and the first storage capacitor. When a picture change rate is lower than a preset rate value, a turn-off time of the second switch is increased, and the first switch is turned on to increase the quantity of electric charge for maintaining a voltage of the liquid crystal capacitor.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: February 7, 2017
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventor: Yucheng Lu
  • Publication number: 20160370413
    Abstract: The present invention discloses a detection circuit and a detection method of a self-capacitance touch screen. The detection circuit comprises a charging module and a voltage measuring module.
    Type: Application
    Filed: December 17, 2014
    Publication date: December 22, 2016
    Applicant: Shenzhen China Star Optoelectronics Technology Co. Ltd.
    Inventor: Yucheng LU