Patents by Inventor Hejing ZHANG

Hejing ZHANG 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: 20170213883
    Abstract: A thin-film transistor array substrate for AMOLED and a manufacturing method thereof are disclosed. The thin-film transistor array substrate includes: a substrate; a plurality of thin-film transistor pixel units mounted on the substrate, each of which includes at least one driving thin-film transistor and at least one switching thin-film transistor; a first electrode pattern layer mounted on the substrate; an insulating layer mounted on the substrate and covering gates of the driving thin-film transistor and the switching thin-film transistor and the first electrode pattern layer; and a second electrode pattern layer mounted on the insulating layer and partially overlapped with the first electrode pattern layer to have an overlapping area and a non-overlapping area; the insulating layer has a larger thickness in the overlapping area and has a smaller thickness in the non-overlapping area.
    Type: Application
    Filed: February 25, 2016
    Publication date: July 27, 2017
    Inventor: Hejing ZHANG
  • Patent number: 9704887
    Abstract: The present invention provides a TFT substrate structure, comprising a Switching TFT and a Driving TFT, and the Switching TFT comprises a first active layer, and the Driving TFT comprises a second active layer, and the first active layer and the second active layer are made by the same or different materials and the electrical properties of the Switching TFT and the Driving TFT are different. According to the different functions of the different TFTs, the present invention employs different working structures for the Switching TFT and the Driving TFT to respectively implement deposition and photolithography, and employs different materials for the active layers of the Switching TFT and the Driving TFT to differentiate the electrical properties of different TFTs in the TFT substrate. Accordingly, the accurate control to the OLED with lowest cost can be realized.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: July 11, 2017
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Hejing Zhang, Chihyuan Tseng, Chihyu Su, Wenhui Li, Longqiang Shi, Xiaowen Lv
  • Patent number: 9698172
    Abstract: The present invention provides a TFT substrate structure, comprising a Switching TFT and a Driving TFT, and the Switching TFT comprises a first active layer, and the Driving TFT comprises a second active layer, and the first active layer and the second active layer are made by the same or different materials and the electrical properties of the Switching TFT and the Driving TFT are different. According to the different functions of the different TFTs, the present invention employs different working structures for the Switching TFT and the Driving TFT to respectively implement deposition and photolithography, and employs different materials for the active layers of the Switching TFT and the Driving TFT to differentiate the electrical properties of different TFTs in the TFT substrate. Accordingly, the accurate control to the OLED with lowest cost can be realized.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: July 4, 2017
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Hejing Zhang, Chihyuan Tseng, Chihyu Su, Wenhui Li, Longqiang Shi, Xiaowen Lv
  • Publication number: 20170179296
    Abstract: A dual gate oxide semiconductor TFT substrate is made by utilizing a halftone mask to implement one photo process, which accomplishes patterning of an oxide semiconductor layer and forms an oxide conductor layer with ion doping process. Patterning of a bottom gate isolation layer and a top gate isolation layer are performed at the same time with one photo process. A first top gate, a first source, a first drain, a second top gate, a second source, and a second drain are formed at the same time with one photo process. Patterning of a flat layer, a passivation layer, and a top gate isolation layer are performed at the same time with one photo process. As such, the number of photo processes applied to manufacture the TFT substrate is reduced to five and the manufacturing process is shortened to thereby raise the production efficiency and lower the production cost.
    Type: Application
    Filed: March 9, 2017
    Publication date: June 22, 2017
    Inventors: Shimin Ge, Hejing Zhang, Chihyuan Tseng, Chihyu Su, Wenhui Li, Longqiang Shi, Xiaowen Lv
  • Publication number: 20170141141
    Abstract: The present invention provides a manufacture method of an oxide semiconductor TFT substrate and a structure thereof.
    Type: Application
    Filed: May 21, 2015
    Publication date: May 18, 2017
    Inventors: Shimin GE, Hejing ZHANG, Chihyuan TSENG, Chihyu SU, Wenhui LI, Longqiang SHI, Xiaowen LV
  • Publication number: 20170141165
    Abstract: The present invention provides an OLED display device, which includes: a substrate (1), a plurality of pixel zones arranged in an array on the substrate (1), each of the pixel zones comprising a pixel electrode (2), an organic light-emitting layer (3), and a common electrode (4) that are sequentially stacked on the substrate (1), and a pixel separation layer (5) including a plurality of openings, the openings being each delimited and circumferentially surrounded by a pixel separation layer sidewall (51), each of the openings corresponding to one of the pixel zones. The pixel separation layer (5) is formed of an inorganic material.
    Type: Application
    Filed: May 25, 2015
    Publication date: May 18, 2017
    Inventors: Xiaowen Lv, Hejing Zhang
  • Patent number: 9634032
    Abstract: The present invention provides a manufacture method of an oxide semiconductor TFT substrate and a structure thereof.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: April 25, 2017
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Shimin Ge, Hejing Zhang, Chihyuan Tseng, Chihyu Su, Wenhui Li, Longqiang Shi, Xiaowen Lv
  • Publication number: 20170110485
    Abstract: The present invention provides a TFT substrate structure, comprising a Switching TFT and a Driving TFT, and the Switching TFT comprises a first active layer, and the Driving TFT comprises a second active layer, and the first active layer and the second active layer are made by the same or different materials and the electrical properties of the Switching TFT and the Driving TFT are different. According to the different functions of the different TFTs, the present invention employs different working structures for the Switching TFT and the Driving TFT to respectively implement deposition and photolithography, and employs different materials for the active layers of the Switching TFT and the Driving TFT to differentiate the electrical properties of different TFTs in the TFT substrate. Accordingly, the accurate control to the OLED with lowest cost can be realized.
    Type: Application
    Filed: December 29, 2016
    Publication date: April 20, 2017
    Applicant: Shenzhen China Star Optoelectronics Technology Co. , Ltd.
    Inventors: Hejing ZHANG, Chihyuan TSENG, Chihyu SU, Wenhui LI, Longqiang SHI, Xiaowen LV
  • Publication number: 20170110484
    Abstract: The present invention provides a TFT substrate structure, comprising a Switching TFT and a Driving TFT, and the Switching TFT comprises a first active layer, and the Driving TFT comprises a second active layer, and the first active layer and the second active layer are made by the same or different materials and the electrical properties of the Switching TFT and the Driving TFT are different. According to the different functions of the different TFTs, the present invention employs different working structures for the Switching TFT and the Driving TFT to respectively implement deposition and photolithography, and employs different materials for the active layers of the Switching TFT and the Driving TFT to differentiate the electrical properties of different TFTs in the TFT substrate. Accordingly, the accurate control to the OLED with lowest cost can be realized.
    Type: Application
    Filed: December 29, 2016
    Publication date: April 20, 2017
    Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Hejing ZHANG, Chihyuan TSENG, Chihyu SU, Wenhui LI, Longqiang SHI, Xiaowen LV
  • Publication number: 20170110483
    Abstract: The present invention provides a TFT substrate structure, comprising a Switching TFT and a Driving TFT, and the Switching TFT comprises a first active layer, and the Driving TFT comprises a second active layer, and the first active layer and the second active layer are made by the same or different materials and the electrical properties of the Switching TFT and the Driving TFT are different. According to the different functions of the different TFTs, the present invention employs different working structures for the Switching TFT and the Driving TFT to respectively implement deposition and photolithography, and employs different materials for the active layers of the Switching TFT and the Driving TFT to differentiate the electrical properties of different TFTs in the TFT substrate. Accordingly, the accurate control to the OLED with lowest cost can be realized.
    Type: Application
    Filed: December 29, 2016
    Publication date: April 20, 2017
    Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Hejing ZHANG, Chihyuan TSENG, Chihyu SU, Wenhui LI, Longqiang SHI, Xiaowen LV
  • Publication number: 20170110482
    Abstract: The present invention provides a manufacture method of an oxide semiconductor TFT substrate and a structure thereof. The manufacture method of the dual gate oxide semiconductor TFT substrate utilizes the halftone mask to implement one photo process, which cannot only accomplish the patterning to the oxide semiconductor layer but also obtain the oxide conductor layer (52?) with ion doping process, and the oxide conductor layer (52?) is employed as being the pixel electrode of the LCD to replace the ITO pixel electrode in prior art; the method manufactures the source (81), the drain (82) and the top gate (71) at the same time with one photo process; the method implements patterning process to the passivation layer (8) and the top gate isolation layer (32) together with one photo process, to reduce the number of the photo processes to nine for shortening the manufacture procedure, raising the production efficiency and lowering the production cost.
    Type: Application
    Filed: December 27, 2016
    Publication date: April 20, 2017
    Inventors: Shimin Ge, Hejing Zhang, Chihyuan Tseng, Chihyu Su, Wenhui Li, Longqiang Shi, Xiaowen Lv
  • Publication number: 20170110486
    Abstract: The present invention provides a TFT substrate structure, comprising a Switching TFT and a Driving TFT, and the Switching TFT comprises a first active layer, and the Driving TFT comprises a second active layer, and the first active layer and the second active layer are made by the same or different materials and the electrical properties of the Switching TFT and the Driving TFT are different. According to the different functions of the different TFTs, the present invention employs different working structures for the Switching TFT and the Driving TFT to respectively implement deposition and photolithography, and employs different materials for the active layers of the Switching TFT and the Driving TFT to differentiate the electrical properties of different TFTs in the TFT substrate. Accordingly, the accurate control to the OLED with lowest cost can be realized.
    Type: Application
    Filed: December 29, 2016
    Publication date: April 20, 2017
    Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Hejing ZHANG, Chihyuan TSENG, Chihyu SU, Wenhui LI, Longqiang SHI, Xiaowen LV
  • Publication number: 20170084637
    Abstract: A dual gate oxide semiconductor thin-film transistor (TFT) substrate includes a substrate; a bottom gate positioned on the substrate; a bottom gate isolation layer positioned on the substrate and the bottom gate; a first oxide semiconductor layer positioned on the bottom gate isolation layer above the bottom gate; an oxide conductor layer positioned on the bottom gate isolation layer at one side of the first oxide semiconductor layer; a top gate isolation layer positioned on the first oxide semiconductor layer, the oxide conductor layer, and the bottom gate isolation layer; a top gate positioned on the top gate isolation layer above a middle part of the first oxide semiconductor layer; a source and a drain positioned on the top gate isolation layer at two sides of the top gate; and a passivation layer positioned on the top gate isolation layer, the source, the drain, and the top gate.
    Type: Application
    Filed: December 1, 2016
    Publication date: March 23, 2017
    Inventors: Shimin Ge, Hejing Zhang, Chihyuan Tseng, Chihyu Su, Wenhui Li, Longqiang Shi, Xiaowen Lv
  • Patent number: 9601523
    Abstract: The present invention provides a dual gate TFT substrate structure utilizing COA skill, comprising a substrate (1), a bottom gate (2) positioned on the substrate (1), a bottom gate isolation layer (3) covering the bottom gate (2) and the substrate (1), an active layer (4) positioned on the bottom gate isolation layer (3) above the bottom gate (2), an etching stopper layer (5) positioned on the active layer (4) and the bottom gate isolation layer (3), a source/a drain (6) positioned on the etching stopper layer (5) and respectively contacted with two ends of the active layer (4), color filter (8) positioned on the source/the drain (6) and the etching stopper layer (5), and a top gate (9) positioned on the color filter (8) and contacted with the bottom gate (2); the active layer (4) and the thin film of the previous manufacture process can be effectively protected and the original property and the stability of the active layer (4) and the thin film of the previous manufacture process can be ensured.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: March 21, 2017
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Hejing Zhang, Chihyuan Tseng, Chihyu Su, Wenhui Li, Longqiang Shi, Xiaowen Lv, Shimin Ge
  • Patent number: 9589995
    Abstract: Disclosed are a method for manufacturing a TFT substrate having storage capacitors and the TFT substrate. The method includes: (1) forming a gate terminal and a first metal electrode; (2) forming a gate insulation layer and a gate insulation layer through-hole; (3) forming an oxide semiconductor layer; (4) subjecting a portion of the oxide semiconductor layer to N-type heavy doping to form a first conductor electrode thereby constituting a first storage capacitor; (5) forming an etch stop layer and a first etch stop layer through-hole; (6) forming source/drain terminals and a second metal electrode, thereby constituting a second storage capacitor connected in parallel to the first capacitor; (7) forming a protection layer, a protection layer through-hole, and a second etch stop layer through-hole; and (8) forming a pixel electrode and a second conductor electrode, thereby constituting a third storage capacitor connected in parallel to the second capacitor.
    Type: Grant
    Filed: August 15, 2014
    Date of Patent: March 7, 2017
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Longqiang Shi, Chihyuan Tseng, Wenhui Li, Yutong Hu, Hejing Zhang, Xiaowen Lv, Chihyu Su
  • Patent number: 9570620
    Abstract: The present invention provides a manufacture method of an oxide semiconductor TFT substrate and a structure thereof. The manufacture method of the dual gate oxide semiconductor TFT substrate utilizes the halftone mask to implement one photo process, which cannot only accomplish the patterning to the oxide semiconductor layer but also obtain the oxide conductor layer (52?) with ion doping process, and the oxide conductor layer (52?) is employed as being the pixel electrode of the LCD to replace the ITO pixel electrode in prior art; the method manufactures the source (81), the drain (82) and the top gate (71) at the same time with one photo process; the method implements patterning process to the passivation layer (8) and the top gate isolation layer (32) together with one photo process, to reduce the number of the photo processes to nine for shortening the manufacture procedure, raising the production efficiency and lowering the production cost.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: February 14, 2017
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Shimin Ge, Hejing Zhang, Chihyuan Tseng, Chihyu Su, Wenhui Li, Longqiang Shi, Xiaowen Lv
  • Patent number: 9543442
    Abstract: The present invention provides a manufacture method of an oxide semiconductor TFT substrate and a structure thereof. The manufacture method of the dual gate oxide semiconductor TFT substrate utilizes the halftone mask to implement one photo process, which cannot only accomplish the patterning to the oxide semiconductor layer but also obtain the oxide conductor layer (52?) with ion doping process, and the oxide conductor layer (52?) is employed as being the pixel electrode of the LCD to replace the ITO pixel electrode in prior art; the method manufactures the source (81), the drain (82) and the top gate (71) at the same time with one photo process; the method implements patterning process to the passivation layer (8) and the top gate isolation layer (32) together with one photo process, to reduce the number of the photo processes to five for shortening the manufacture procedure, raising the production efficiency and lowering the production cost.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: January 10, 2017
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Shimin Ge, Hejing Zhang, Chihyuan Tseng, Chihyu Su, Wenhui Li, Longqiang Shi, Xiaowen Lv
  • Publication number: 20160351599
    Abstract: The present invention provides a dual gate TFT substrate structure utilizing COA skill, comprising a substrate (1), a bottom gate (2) positioned on the substrate (1), a bottom gate isolation layer (3) covering the bottom gate (2) and the substrate (1), an active layer (4) positioned on the bottom gate isolation layer (3) above the bottom gate (2), an etching stopper layer (5) positioned on the active layer (4) and the bottom gate isolation layer (3), a source/a drain (6) positioned on the etching stopper layer (5) and respectively contacted with two ends of the active layer (4), color filter (8) positioned on the source/the drain (6) and the etching stopper layer (5), and a top gate (9) positioned on the color filter (8) and contacted with the bottom gate (2); the active layer (4) and the thin film of the previous manufacture process can be effectively protected and the original property and the stability of the active layer (4) and the thin film of the previous manufacture process can be ensured.
    Type: Application
    Filed: May 21, 2015
    Publication date: December 1, 2016
    Inventors: Hejing Zhang, Chihyuan Tseng, Chihyu Su, Wenhui Li, Longqiang Shi, Xiaowen Lv, Shimin Ge
  • Publication number: 20160343779
    Abstract: The present invention provides a WOLED display device and a manufacture method thereof. By locating a thickness of a part of the insulative layers correspondingly positioned above the bottom layer wiring in the white sub pixel area is larger than a thickness of other part of the insulative layers in the white sub pixel area to increase a vertical distance from the first electrode to the bottom layer wiring in the white sub pixel area, and meanwhile, by locating the first electrode and the bottom layer wiring in the white sub pixel area to be spaced with a distance in the horizontal direction to make a larger space between the first electrode and the bottom layer wiring, and thus, the bad phenomenon of the short circuit, the overcurrent caused by impurity substance between the first electrode and the bottom layer wiring can be avoided.
    Type: Application
    Filed: February 9, 2015
    Publication date: November 24, 2016
    Applicant: Shenzhen China Star Optoelectronics Technology Co. Ltd.
    Inventors: Hejing ZHANG, Yawei LIU
  • Publication number: 20160343786
    Abstract: The present invention provides an OLED display device and a manufacture method thereof. By locating a thickness of a part of the second insulative layer correspondingly positioned above the bottom layer wiring in the white sub pixel area is larger than a thickness of other part of the second insulative layer in the white sub pixel area, increase a vertical distance from the bottom layer wiring to the first electrode in the white sub pixel area, and thus, the short circuit, the overcurrent between the first electrode and the bottom layer wiring of the white sub pixel area can be prevented. The manufacture method of the OLED display device is simple, easy for operation, and the manufactured OLED display device can prevent the short circuit or the overcurrent between the first electrode and the bottom layer wiring of the white sub pixel area occur and raise the manufacture yield of the OLED display device.
    Type: Application
    Filed: February 9, 2015
    Publication date: November 24, 2016
    Applicant: Shenzhen China Star Optoelectronics Technology Co. Ltd.
    Inventors: Hejing ZHANG, Chihyu SU