Patents by Inventor Jieliang LI

Jieliang LI 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: 20200312223
    Abstract: A pixel circuit, a method for driving a pixel circuit and a display panel are provided. An exemplary pixel circuit includes a data writing module and a driving transistor, a voltage of a first terminal of the driving transistor being greater than a voltage of a second terminal; a light-emitting control module and a light-emitting device, the light-emitting device being configured to emit light in response to the driving current generated by the driving transistor; a first initialization module and a second initialization module; and a reset module configured to cause the voltage of the second terminal of the driving transistor to be greater than or equal to the voltage of the first terminal of the driving transistor in response to a current-stage reset signal, an enable signal of the current-stage reset signal appearing after an enable signal of the current-stage light-emitting signal.
    Type: Application
    Filed: June 17, 2019
    Publication date: October 1, 2020
    Inventors: Yong YUAN, Yuheng ZHANG, Wanming HUANG, Jieliang LI
  • Publication number: 20200279524
    Abstract: Driving method for driving circuit, display panel, and display device are provided. The method includes: in a data writing stage, transmitting data signal voltage to a gate electrode of the driving transistor in response to a scan signal in a first scan signal line; in a light-emitting stage, turning on a driving path connecting the driving transistor to the light-emitting device, and making the driving transistor generate a driving current based on the voltage of the gate electrode in the driving transistor to drive the light-emitting device to emit light, in response to a light-emitting signal in a light-emitting signal line; and in a compensation stage, compensating the voltage of the gate electrode in the driving transistor by using a first power signal voltage. The light-emitting stage and the compensation stage overlap with each other, and a starting time of the compensation stage is after a starting time of the light-emitting stage.
    Type: Application
    Filed: December 18, 2019
    Publication date: September 3, 2020
    Inventors: Yuheng ZHANG, Yong YUAN, Jieliang LI, Wanming HUANG, Yingteng ZHAI
  • Patent number: 10676672
    Abstract: The present application relates to a liquid crystal aligning agent, a liquid crystal alignment film and a method for producing the same, as well as a liquid crystal display device. The liquid crystal aligning agent comprises (i) a first polyamic acid having a photoreactive group without a liquid crystal group; (ii) a second polyamic acid having a liquid crystal group without a photoreactive group; (iii) a third polyamic acid having both a liquid crystal group and a photoreactive group; (iv) a fourth polyamic acid having neither a photoreactive group nor a liquid crystal group. The liquid crystal display device using the liquid crystal alignment film formed by the liquid crystal aligning agent provided by the present disclosure has a high display contrast and an improved AC residual image.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: June 9, 2020
    Assignees: XIAMEN TIANMA MICRO-ELECTRONICS CO., LTD., TIANMA MICO-ELECTRONICS CO., LTD.
    Inventors: Jieliang Li, Chikaaki Mizikuchi
  • Publication number: 20200135774
    Abstract: Provided are an inverter circuit structure, a gate driving circuit and a display panel. The inverter circuit structure includes a PMOS transistor and an NMOS transistor, and further includes a first active layer, a gate layer, a second active layer, a first insulating layer between the gate layer and the first active layer, and a second insulating layer between the gate layer and the second active layer. An orthographic projection of the gate on the first active layer is a first region, and a portion of the first active layer in the first region has substantially a same thickness. An orthographic projection of the gate on the second active layer is a second region, and a portion of the second active layer in the second region has substantially a same thickness.
    Type: Application
    Filed: December 24, 2019
    Publication date: April 30, 2020
    Inventors: Jieliang LI, Yuping Xu
  • Patent number: 10481748
    Abstract: A display panel and a display apparatus are provided. The display panel includes a display area and a non-display area surrounding the display area. The display panel includes at least one semiconductor pressure sensor disposed in the non-display area. Each semiconductor pressure sensor has a planar structure and is provided with a hollow-out zone. In various embodiments of the present disclosure, the pressure detection accuracy of the pressure sensors is improved and the user experience is enhanced.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: November 19, 2019
    Assignee: XIAMEN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Zaiwen Zhu, Jieliang Li, Yong Yuan, Feng Lu, Qijun Yao, Hongming Chen
  • Patent number: 10353508
    Abstract: Provided are a touch display panel and a touch display device. The touch display panel includes at least one semiconductor pressure-sensing touch device, and the semiconductor pressure-sensing touch device includes a first pressure-sensitive resistor, a second pressure-sensitive resistor, a third pressure-sensitive resistor and a fourth pressure-sensitive resistor. A first end of the first pressure-sensitive resistor and a first end of the second pressure-sensitive resistor are connected to a first power inputting terminal, a second end of the first pressure-sensitive resistor and a first end of the fourth pressure-sensitive resistor are connected to a first sense signal measuring terminal, a second end of the fourth pressure-sensitive resistor and a second end of the third pressure-sensitive resistor are connected to a second power inputting terminal.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: July 16, 2019
    Assignee: XIAMEN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Jieliang Li, Yong Yuan, Zaiwen Zhu, Qitai Ji, Qijun Yao, Feng Lu
  • Publication number: 20180150175
    Abstract: Provided are a touch display panel and a touch display device. The touch display panel includes at least one semiconductor pressure-sensing touch device, and the semiconductor pressure-sensing touch device includes a first pressure-sensitive resistor, a second pressure-sensitive resistor, a third pressure-sensitive resistor and a fourth pressure-sensitive resistor. A first end of the first pressure-sensitive resistor and a first end of the second pressure-sensitive resistor are connected to a first power inputting terminal, a second end of the first pressure-sensitive resistor and a first end of the fourth pressure-sensitive resistor are connected to a first sense signal measuring terminal, a second end of the fourth pressure-sensitive resistor and a second end of the third pressure-sensitive resistor are connected to a second power inputting terminal.
    Type: Application
    Filed: January 26, 2018
    Publication date: May 31, 2018
    Applicant: XIAMEN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Jieliang LI, Yong YUAN, Zaiwen ZHU, Qitai JI, Qijun YAO, Feng LU
  • Publication number: 20180074622
    Abstract: A display panel and a display apparatus are provided. The display panel includes a display area and a non-display area surrounding the display area. The display panel includes at least one semiconductor pressure sensor disposed in the non-display area. Each semiconductor pressure sensor has a planar structure and is provided with a hollow-out zone. In various embodiments of the present disclosure, the pressure detection accuracy of the pressure sensors is improved and the user experience is enhanced.
    Type: Application
    Filed: November 15, 2017
    Publication date: March 15, 2018
    Inventors: Zaiwen ZHU, Jieliang LI, Yong YUAN, Feng LU, Qijun YAO, Hongming CHEN
  • Publication number: 20170327745
    Abstract: The present application relates to a liquid crystal aligning agent, a liquid crystal alignment film and a method for producing the same, as well as a liquid crystal display device. The liquid crystal aligning agent comprises (i) a first polyamic acid having a photoreactive group without a liquid crystal group; (ii) a second polyamic acid having a liquid crystal group without a photoreactive group; (iii) a third polyamic acid having both a liquid crystal group and a photoreactive group; (iv) a fourth polyamic acid having neither a photoreactive group nor a liquid crystal group. The liquid crystal display device using the liquid crystal alignment film formed by the liquid crystal aligning agent provided by the present disclosure has a high display contrast and an improved AC residual image.
    Type: Application
    Filed: August 4, 2017
    Publication date: November 16, 2017
    Inventors: Jieliang LI, Chikaaki MIZIKUCHI
  • Publication number: 20170115532
    Abstract: A display panel, a photo-alignment film, and a fabrication method of the photo-alignment film are provided. The display panel includes a first substrate, a second substrate disposed opposite to the first substrate, and a liquid crystal layer sandwiched between the first substrate and the second substrate. The first substrate includes a first photo-alignment film comprising a first photo-alignment layer and a first conductive layer that are stacked. The first photo-alignment layer is disposed close to the liquid crystal layer, and the first conductive layer is electrically connected to a conductive structure in the display panel. A resistivity of the first conductive layer is smaller than 1014 ?·cm. The second substrate includes a second photo-alignment film disposed close to the liquid crystal layer.
    Type: Application
    Filed: January 4, 2017
    Publication date: April 27, 2017
    Inventors: Jieliang LI, Yong YUAN, Qi TANG