Patents by Inventor Jiajin Liu

Jiajin Liu 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: 12235547
    Abstract: Provided is a liquid crystal display panel. The liquid crystal display panel includes: a first substrate and a second substrate that are opposite to each other, and a liquid crystal layer between the first substrate and the second substrate. The liquid crystal display panel includes a plurality of sub-pixel regions. Each of the plurality of sub-pixel regions includes 4N sub-pixel sub-regions arranged in a single column, and the 4N sub-pixel sub-regions are organized into one group, or a plurality of groups that are adjacent to each other. A same group of sub-pixel sub-regions includes two first sub-regions and two second sub-regions. N is an integer greater than or equal to 1.
    Type: Grant
    Filed: December 30, 2021
    Date of Patent: February 25, 2025
    Assignees: CHENGDU BOE DISPLAY SCI-TECH CO., LTD., BOE Technology Group Co., Ltd.
    Inventors: Shaoping Zhang, Jia Liu, Chao Tong, Ning Miao, Ying Wang, Liangliang Li, Bin Luo, Jiajin Liu
  • Publication number: 20240272492
    Abstract: Provided is a liquid crystal display panel. The liquid crystal display panel includes: a first substrate and a second substrate that are opposite to each other, and a liquid crystal layer between the first substrate and the second substrate. The liquid crystal display panel includes a plurality of sub-pixel regions. Each of the plurality of sub-pixel regions includes 4N sub-pixel sub-regions arranged in a single column, and the 4N sub-pixel sub-regions are organized into one group, or a plurality of groups that are adjacent to each other. A same group of sub-pixel sub-regions includes two first sub-regions and two second sub-regions. N is an integer greater than or equal to 1.
    Type: Application
    Filed: December 30, 2021
    Publication date: August 15, 2024
    Inventors: Shaoping ZHANG, Jia LIU, Chao TONG, Ning MIAO, Ying WANG, Liangliang LI, Bin LUO, Jiajin LIU
  • Patent number: 11668504
    Abstract: An air conditioning system includes a storage medium and an air conditioning system, for a three-pipe air conditioning system, the three-pipe air conditioning system includes a compressor, an outdoor heat exchanger, an indoor heat exchanger, a gas-liquid separator, a first pipeline, a second pipeline and a third pipeline; the oil return control method comprises the following steps: controlling the compressor to operate at a first frequency in a refrigerating mode; judging whether the operation duration of the refrigerating mode reaches a first preset time or not; if so, the air conditioning system enters an oil return state, and the compressor, the third pipeline, the second pipeline and the gas-liquid separator are controlled to be communicated in sequence to form a refrigerant circulation loop.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: June 6, 2023
    Assignees: HEFEI MIDEA HEATING AND VENTILATING EQUIPMENT CO., LTD., GD MIDEA HEATING AND VENTILATING EQUIPMENT CO., LTD.
    Inventors: Xinli Wang, Meibing Xiong, Mingkun Feng, Haowei Zhao, Jiajin Liu
  • Publication number: 20200166258
    Abstract: Disclosed are an oil return control method and device of an air conditioning system, a storage medium and an air conditioning system, wherein the oil return control method is used for a three-pipe air conditioning system, and the three-pipe air conditioning system comprises a compressor, an outdoor heat exchanger, an indoor heat exchanger, a gas-liquid separator, a first pipeline, a second pipeline and a third pipeline; the oil return control method comprises the following steps: controlling the compressor to operate at a first frequency in a refrigerating mode; judging whether the operation duration of the refrigerating mode reaches a first preset time or not; if so, the air conditioning system enters an oil return state, and the compressor, the third pipeline, the second pipeline and the gas-liquid separator are controlled to be communicated in sequence to form a refrigerant circulation loop.
    Type: Application
    Filed: June 3, 2019
    Publication date: May 28, 2020
    Inventors: Xinli WANG, Meibing XIONG, Mingkun FENG, Haowei ZHAO, Jiajin LIU
  • Patent number: 8029116
    Abstract: The present invention provides an ink cartridge including a cartridge body defining an air vent at an upper section thereof and an ink discharge port detachably assembled to a lower section of the cartridge body. The cartridge body and/or the ink discharge port can be replaced separately when they are damaged and, thus, there is no need to replace the ink cartridge as whole.
    Type: Grant
    Filed: May 16, 2006
    Date of Patent: October 4, 2011
    Inventor: Jiajin Liu
  • Publication number: 20090244219
    Abstract: The present invention provides an ink cartridge including a cartridge body defining an air vent at an upper section thereof and an ink discharge port detachably assembled to a lower section of the cartridge body. The cartridge body and/or the ink discharge port can be replaced separately when they are damaged and, thus, there is no need to replace the ink cartridge as whole.
    Type: Application
    Filed: May 16, 2006
    Publication date: October 1, 2009
    Inventor: Jiajin Liu