Haifeng BI

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Image processing method and apparatus, display device, and computer...
- Patent number 11,200,649
- Issue date Dec 14, 2021
- ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.
- Haifeng Bi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Circuit working state testing method and testing device
- Patent number 11,017,700
- Issue date May 25, 2021
- ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.
- Haifeng Bi
- G01 - MEASURING TESTING
Information Patent Grant
Light guide assembly, fabrication method thereof, backlight module...
- Patent number 10,578,919
- Issue date Mar 3, 2020
- BOE Technology Group Co., Ltd.
- Ruijun Hao
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
IMAGE PROCESSING METHOD AND APPARATUS, DISPLAY DEVICE, AND COMPUTER...
- Publication number 20210097658
- Publication date Apr 1, 2021
- Ordos Yuansheng Optoelectronics Co., Ltd.
- Haifeng BI
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
LIGHT GUIDE ASSEMBLY, FABRICATION METHOD THEREOF, BACKLIGHT MODULE...
- Publication number 20190391449
- Publication date Dec 26, 2019
- BOE TECHNOLOGY GROUP CO., LTD.
- Ruijun HAO
- G02 - OPTICS
Information Patent Application
CIRCUIT WORKING STATE TESTING METHOD AND TESTING DEVICE
- Publication number 20190228691
- Publication date Jul 25, 2019
- Ordos Yuansheng Optoelectronics Co., Ltd.
- Haifeng BI
- G06 - COMPUTING CALCULATING COUNTING