Patents by Inventor Dong Qian

Dong Qian 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: 20160062160
    Abstract: The invention discloses a display panel, a method of manufacturing the same and a display device so as to simplify a process of transmitting an electrical signal between a first substrate and a second substrate of the display panel at a lower cost. The display panel includes a first substrate and a second substrate disposed opposite to each other. The first substrate has a concave groove surrounded by a convex section and facing the second substrate. The display panel also includes an electrode layer on the surface of the groove and having at least one first conductive section extending outward from inside of the concave groove to the top end face of the convex section; and at least one second conductive section on the second substrate and electrically connected with the respective first conductive section.
    Type: Application
    Filed: January 12, 2015
    Publication date: March 3, 2016
    Inventors: Zhiyong XIONG, Dong QIAN
  • Patent number: 9269304
    Abstract: A pixel circuit for an organic light emitting display includes first, second, third, fourth, fifth, and sixth MOS transistors, a first capacitor, and an organic light emitting diode. During a initialization stage, the sixth MOS transistor is turned on, and a reference voltage is transmitted to the gate electrode of the second MOS transistor. During a data-writing stage, the first MOS transistor is turned on and a data signal is transmitted to the first terminal of the first capacitor, the fourth MOS transistor is turned on and the other MOS transistors are turned off. During a light emitting stage, the fifth MOS transistor is turned on and the voltage at the gate of the second MOS transistor is based on the data signal. As a result, the third MOS transistor generates a drive current based on the data signal.
    Type: Grant
    Filed: May 20, 2013
    Date of Patent: February 23, 2016
    Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Dong Qian, Hanyu Gu
  • Publication number: 20160027850
    Abstract: A pixel element structure is disclosed. The pixel element structure includes first, second, and third sub-pixel elements, each including a light-emitting region. At least one of the first, second, and third sub-pixel elements includes a light-transmitting region, where the light-emitting region includes an organic light-emitting diode light-emitting structure, and where the organic light-emitting diode light-emitting structure includes a first substrate, and a nontransparent anode, a pixel defining layer, an organic layer and a cathode, sequentially arranged above the first substrate.
    Type: Application
    Filed: November 11, 2014
    Publication date: January 28, 2016
    Inventors: Boyan LV, Liyuan Luo, Dong Qian
  • Publication number: 20150376765
    Abstract: A mask and a method of making the mask are disclosed. The mask includes a transition region including at least one first region having a first thickness, and an active region having another thickness, where the thickness of the active region is greater than the first thickness. The method of making the mask includes forming a plurality of patterns in a mask body, the patterns being formed in regions of the mask body corresponding with the active region and the transition region of the mask.
    Type: Application
    Filed: October 15, 2014
    Publication date: December 31, 2015
    Inventors: Zhiyong XIONG, Dong Qian, Yunyan Wei
  • Publication number: 20150371586
    Abstract: An Organic Light Emitting Diode pixel compensation circuit is disclosed. The circuit includes first through fifth transistors, and a storage capacitor. The first transistor is coupled to a first scan signal, a power supply voltage, and a first electrode of the storage capacitor. In addition, the second transistor is coupled to the first scan signal, a data signal, and the third transistor. The third transistor is coupled to the power supply voltage, and the fifth transistor. Furthermore, the fourth transistor is coupled to a second scan signal, the third transistor, and the storage capacitor, and fifth transistor is coupled to a light emitting signal, and the OLED. In addition, the storage capacitor is coupled to the fifth transistor, and a low-level signal and emits light based on a drive current generated by the third transistor.
    Type: Application
    Filed: November 7, 2014
    Publication date: December 24, 2015
    Inventors: Dan Chen, Dong Qian
  • Publication number: 20150371587
    Abstract: An OLED pixel compensation circuit includes first, second, third, fourth, fifth, sixth and seventh transistors and a storage capacitor. The first transistor has a gate electrode coupled to a scan signal, a first electrode coupled to a data signal, and a second electrode coupled to a gate electrode of the fifth transistor. The second transistor has a gate electrode coupled to the scan signal, a first electrode coupled to a power supply voltage, and a second electrode coupled to a second electrode of the storage capacitor. The third transistor has a gate electrode coupled to a first light emitting signal, a first electrode coupled to the power supply voltage. The transistors and the storage capacitor are configured to compensate the threshold voltage drift of the fifth transistor, which is the driving transistor for the OLED.
    Type: Application
    Filed: November 7, 2014
    Publication date: December 24, 2015
    Inventors: Dan Chen, Dong Qian
  • Publication number: 20150372072
    Abstract: An organic light emitting diode (OLED) display panel is disclosed. The display panel includes a substrate, and a Thin-film Transistor (TFT) disposed on the substrate. The TFT includes a source electrode, and a drain electrode. The display panel also includes a power line disposed above the substrate, an auxiliary electrode electrically connected to the power line, and a signal input terminal, electrically connected to the power line and providing an input signal. A first collective portion of the auxiliary electrode and the power line has a first length and a first resistance. A second collective portion of the auxiliary electrode and the power line has a second length and a second resistance. The first collective portion is between the second collective portion and the signal input terminal. The first length is equal to the second length, and the first resistance is greater than the second resistance.
    Type: Application
    Filed: January 7, 2015
    Publication date: December 24, 2015
    Inventors: Zhiyong XIONG, Zhanghe Zeng, Dong Qian
  • Publication number: 20150364084
    Abstract: Embodiments of the invention provide a pixel driving circuit and a display device, and the pixel driving circuit includes a drive transistor and an organic light emitting diode, where a cathode of the organic light emitting diode receives a first power supply signal, and an anode of the organic light emitting diode is connected with a gate electrode of the drive transistor; the first power supply signal is loaded to the gate electrode of the drive transistor through the cathode and the anode of the organic light emitting diode to reset a signal at the gate electrode of the drive transistor during an operating period of the pixel driving circuit; and the first power supply signal is a low-level signal.
    Type: Application
    Filed: October 16, 2014
    Publication date: December 17, 2015
    Inventors: Hanyu GU, Dong Qian, Tong Zhang
  • Publication number: 20150356919
    Abstract: A pixel compensating circuit includes a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor, a driving transistor, a first capacitor, and an organic light emitting diode element. The first transistor controls transmission of a data signal to a first electrode plate of the first capacitor. The second transistor controls transmission of a reference voltage signal to the first electrode plate of the first capacitor. The driving transistor determines an amount of a driving current. The third transistor controls connection and disconnection between the gate electrode and a drain electrode of the driving transistor. The fourth transistor transmits the driving current from the driving transistor to the organic light emitting diode element. The fifth transistor controls transmission of a supply voltage to the source electrode of the driving transistor; and the organic light emitting diode element emits light in response to the driving current.
    Type: Application
    Filed: September 8, 2014
    Publication date: December 10, 2015
    Inventors: Zhiliang WANG, Dong QIAN, Liyuan LUO
  • Publication number: 20150356924
    Abstract: A pixel circuit, an organic electroluminescent display panel and a display device are provided. The pixel circuit includes a light emitting element, a first capacitor, a reset control module, a drive control module, a compensation control module, and a light emission control module. In a reset phase, the reset control module writes a reset signal at a reset signal end into a second end of the first capacitor. In a compensation phase, the reset control module writes a data signal at a data signal end into a first end of the first capacitor, and the drive control module charges the first capacitor through the compensation control module. In a light emission phase, both the light emission control module and the first capacitor enable the drive control module to drive the light emitting element with a stable current for emission of light.
    Type: Application
    Filed: August 19, 2014
    Publication date: December 10, 2015
    Inventors: Dan CHEN, Dong QIAN
  • Publication number: 20150356916
    Abstract: An organic light emitting diode pixel compensation circuit is disclosed. The compensation circuit compensates threshold voltage of a TFT and supply voltage in a pixel circuit to address non-uniform in a display. In the circuit, a first transistor transmits a data signal to a first capacitor based on a scan signal; a second transistor transmits a reference signal to the first capacitor based on a first light emission signal; a third transistor connects a gate of a drive transistor with a drain of the drive transistor based on the scan signal to read the difference between supply voltage and threshold voltage of the drive transistor and to transmit the difference to the first capacitor and a second capacitor; and the drive transistor generates the drive current based on the supply voltage and the voltage on the first capacitor to drive an organic light emitting diode emit light.
    Type: Application
    Filed: August 27, 2014
    Publication date: December 10, 2015
    Inventor: Dong QIAN
  • Patent number: 9208734
    Abstract: A shift register includes an input terminal, an output terminal, a first clock signal terminal, a second clock signal terminal, a first level signal terminal, a second level terminal, a first capacitor and a second capacitor, and five transistors. The five transistors are controlled by first and second clock signals applied to the respective first and second signal terminals to shift a signal received from the input terminal to the output terminal with a half cycle period delay while maintaining a stable level of the shifted signal at the output terminal.
    Type: Grant
    Filed: November 18, 2013
    Date of Patent: December 8, 2015
    Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Dong Qian, Changho Tseng
  • Publication number: 20150340102
    Abstract: A TFT array substrate is disclosed. The TFT array substrate includes a plurality of gate lines, and a gate driving circuit connected to the gate lines. The gate driving circuit includes a plurality of stages of shift registers, where odd-numbered stages of shift registers are cascaded-connected to each other, even-numbered stages of shift registers are cascaded-connected to each other, and the odd-numbered stages of shift registers and the even-numbered stages of shift registers are disposed at opposite ends of the gate lines.
    Type: Application
    Filed: August 22, 2014
    Publication date: November 26, 2015
    Inventor: Dong QIAN
  • Patent number: 9161583
    Abstract: Methods and devices for attaching hair weaves to a wearer's existing hair are described. A hair extension/weave portion (e.g., a system comprised of a plurality of natural and/or synthetic hair strands) may be attached to an attachment strip member via a base member with a suture, such as a thread or stitch. The attachment strip member may be formed of a flexible material, such that it can conform to the contours of the wearer's head/scalp. Holes may be provided on the attachment strip member so to allow the attachment of one or more clip members thereto. The clip members, having the attachment strip member and hair extension portion attached thereto, may then be inserted into the wearer's existing hair so as to secure the hair extension system thereto. The clip members, and thus the hair extension system, may then be easily removed from the wearer's existing hair when desired.
    Type: Grant
    Filed: October 28, 2012
    Date of Patent: October 20, 2015
    Inventors: Deborah Glass, Steve Livneh, Dong Qian
  • Publication number: 20150261823
    Abstract: Methods, systems, and computer program products for compressing a row are described. A common prefix may be obtained and data in the row matching the common prefix may be identified. A column number of a column corresponding to a breakpoint of the common prefix may be determined and data matching the common prefix may be deleted from the row. An identifier of the common prefix may be inserted into the row and a breakpoint field in the row may be set to the determined column number.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 17, 2015
    Inventors: Xu-dong Qian, Leon Xiong
  • Patent number: 9129001
    Abstract: A system, method, and computer program product for character data compression for reducing data storage requirements in a database system are described. Embodiments include identifying data of a particular character type in a full data page, and identifying usage frequency of each character of the particular character type. Each character is encoded based on the identified usage frequency and stored, with storage requirements for most frequently used characters are reduced.
    Type: Grant
    Filed: May 7, 2012
    Date of Patent: September 8, 2015
    Assignee: Sybase, Inc.
    Inventors: Xu-dong Qian, ZhiPing Xiong
  • Publication number: 20150214505
    Abstract: An Active Matrix Organic Light Emitting Diode (AMOLED) display panel is disclosed. The display panel includes a substrate, an anode layer on the substrate, a hole transport layer on the anode layer, an illuminating layer on the hole transport layer, an electron transport layer on the illuminating layer, a cathode layer on the electron transport layer, and a cathode protection layer on the cathode layer. In addition, at least one of the hole transport layer and the cathode protection layer includes a film having a uniform thickness.
    Type: Application
    Filed: May 23, 2014
    Publication date: July 30, 2015
    Applicants: Shanghai Tianma AM-OLED Co., Ltd., Tianma Micro-Electronics Co., Ltd.
    Inventors: Zhiyong Xiong, Dong Qian
  • Publication number: 20150187265
    Abstract: An AMOLED display panel and an organic light emitting diode display device are disclosed. The AMOLED display panel includes: a multitude of pixel circuits; a multitude of data lines coupled to the pixel circuits; a driver unit, which is configured to provide a first data signal; a multipath selection unit, which is connected between the data lines and the driver unit, and configured to transmit the first data signal to the selected data line; and a voltage stabilizer unit, which is connected to the data lines, and configured to output a second signal to the data lines; wherein, before a data writing stage, the second signal outputted from the voltage stabilizer unit is applied to the data lines. The number of wired data lines in the AMOLED display panel and the volume of the display panel are reduced, and the manufacturing process of the display panel is simplified.
    Type: Application
    Filed: June 16, 2014
    Publication date: July 2, 2015
    Inventors: Tong ZHANG, Dong QIAN, Hanyu Gu
  • Publication number: 20150187266
    Abstract: The present invention discloses a pixel compensation circuit and method for an organic light emitting display. The circuit comprises a first transistor, a second transistor, a third transistor, a fourth transistor, a driving transistor, a capacitor, and an organic light emitting element. The first transistor transmits a data signal to a first plate of the capacitor; the second transistor applies a reference voltage to the first plate of the capacitor; the driving transistor determines a magnitude of a driving current; the third transistor establishes a connection between the gate electrode and the drain electrode of the driving transistor; the fourth transistor passes the driving current from the driving transistor to the organic light emitting element; and the organic light emitting element emits light in response to the driving current.
    Type: Application
    Filed: August 18, 2014
    Publication date: July 2, 2015
    Inventors: Dong QIAN, Hanyu Gu, Tong Zhang
  • Publication number: 20150162387
    Abstract: An OLED display apparatus with an in cell touch structure includes a cover plate, an array substrate facing the cover plate, an organic light-emitting layer arranged therebetween, multiple driving lines and multiple sensing lines arranged at an inner side of the cover plate facing the array substrate, multiple signal pins arranged at an inner side of the array substrate, where each of the signal pins corresponds to one of the driving lines or one of the sensing lines, and multiple conductive structures. The conductive structures are arranged between the driving lines and the signal pins or between the sensing lines and the signal pins. Each conductive structure includes an end electrically connecting a driving line or a sensing line to a corresponding signal pin, and an opposite end electrically connected to a corresponding touch signal transmission line.
    Type: Application
    Filed: May 12, 2014
    Publication date: June 11, 2015
    Applicants: Shanghai Tianma Micro-Electronics Co., Ltd., Tianma Micro-Electronics Co., Ltd.
    Inventors: Hanyu GU, Dong QIAN, Tong ZHANG