Patents by Inventor Qingjiang Wang
Qingjiang Wang 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).
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Patent number: 11636976Abstract: Disclosed are a device and method for continuously performing grain boundary diffusion and heat treatment, characterized in that the alloy workpiece or the metal workpiece are arranged in a relatively independent processing box together with a diffusion source; the device comprises, in successive arrangement, a grain boundary diffusion chamber, a first cooling chamber, a heat treatment chamber, and a second cooling chamber, and a transfer system provided between various chambers for delivering the processing box; each of the first cooling chamber and the second cooling chamber uses an air cooling system, and the cooling air temperature of the first cooling chamber is above 25° C. and at least differs by 550° C. from the grain boundary diffusion temperature of the grain boundary diffusion chamber; the cooling air temperature of the second cooling chamber is above 25° C. and at least differs by 300° C.Type: GrantFiled: November 5, 2018Date of Patent: April 25, 2023Assignee: Fujian Changting Golden Dragon Rare-Earth Co., LtdInventors: Qingjiang Wang, Zongbo Liao, Yulin Lin, Changgeng Huang
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Patent number: 11508519Abstract: Disclosed are a continuous heat treatment device and method for a sintered Nd—Fe—B magnet workpiece. The device comprises a first heat treatment chamber, a first cooling chamber, a second heat treatment chamber, and a second cooling chamber continuously disposed in sequence, as well as a transfer system disposed among the chambers to transfer the alloy workpiece or the metal workpiece; both the first cooling chamber and the second cooling chamber adopt a air cooling system, wherein a cooling air temperature of the first cooling chamber is 25° C. or above and differs from a heat treatment temperature of the first heat treatment chamber by at least 450° C.; a cooling air temperature of the second cooling chamber is 25° C. or above and differs from a heat treatment temperature of the second heat treatment chamber by at least 300° C. The continuous heat treatment device and method can improve the cooling rate and production efficiency and improve the properties and consistency of the products.Type: GrantFiled: October 9, 2018Date of Patent: November 22, 2022Assignee: Fujian Changting Golden Dragon Rare-Earth Co., LtdInventors: Qingjiang Wang, Ying Luo, Jianpeng Wu
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Publication number: 20220255645Abstract: Embodiments of this application disclose a signal processing method and a related apparatus, to estimate passive intermodulation (PIM) signal strength. The method in embodiments of this application includes: First downlink signal data corresponding to each of N cells in a preset bandwidth resource scheduling solution is obtained. Then, first characteristic data corresponding to each piece of the first downlink signal data is determined. Then, first passive intermodulation PIM signal strength corresponding to a first cell is determined based on a preset signal strength evaluation model and the first characteristic data corresponding to each of the N cells, to accurately estimate impact of the first PIM signal on the first cell.Type: ApplicationFiled: April 28, 2022Publication date: August 11, 2022Inventors: Jingfang ZHA, Chunyuan CHEN, Qingjiang WANG, Chun WANG
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Patent number: 11102469Abstract: A 3D play system which includes a head-mounted/headset device. The head-mounted device includes a supporting structure, a first lens, and a second lens. The supporting structure is configured to support two display devices. The first lens is configured to zoom an image displayed by a first display device and project the zoomed image onto a left eye. The second lens is configured to zoom an image displayed by a second display device and project the zoomed image onto a right eye.Type: GrantFiled: January 22, 2020Date of Patent: August 24, 2021Assignee: BOE Technology Group Co., Ltd.Inventors: Zhiguo Zhang, Qingjiang Wang
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Publication number: 20210142944Abstract: Disclosed are a device and method for continuously performing grain boundary diffusion and heat treatment, characterized in that the alloy workpiece or the metal workpiece are arranged in a relatively independent processing box together with a diffusion source; the device comprises, in successive arrangement, a grain boundary diffusion chamber, a first cooling chamber, a heat treatment chamber, and a second cooling chamber, and a transfer system provided between various chambers for delivering the processing box; each of the first cooling chamber and the second cooling chamber uses an air cooling system, and the cooling air temperature of the first cooling chamber is above 25° C. and at least differs by 550° C. from the grain boundary diffusion temperature of the grain boundary diffusion chamber; the cooling air temperature of the second cooling chamber is above 25° C. and at least differs by 300° C.Type: ApplicationFiled: November 5, 2018Publication date: May 13, 2021Inventors: Qingjiang Wang, Zongbo Liao, Yulin Lin, Changgeng Huang
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Publication number: 20210142943Abstract: Disclosed are a continuous heat treatment device and method for a sintered Nd—Fe—B magnet workpiece. The device comprises a first heat treatment chamber, a first cooling chamber, a second heat treatment chamber, and a second cooling chamber continuously disposed in sequence, as well as a transfer system disposed among the chambers to transfer the alloy workpiece or the metal workpiece; both the first cooling chamber and the second cooling chamber adopt a air cooling system, wherein a cooling air temperature of the first cooling chamber is 25° C. or above and differs from a heat treatment temperature of the first heat treatment chamber by at least 450° C.; a cooling air temperature of the second cooling chamber is 25° C. or above and differs from a heat treatment temperature of the second heat treatment chamber by at least 300° C. The continuous heat treatment device and method can improve the cooling rate and production efficiency and improve the properties and consistency of the products.Type: ApplicationFiled: October 9, 2018Publication date: May 13, 2021Inventors: Qingjiang Wang, Ying Luo, Jianpeng Wu
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Publication number: 20200162723Abstract: A 3D play system is provided. The system includes a head-mounted/headset device. The head-mounted device includes a supporting structure; a first lens; and a second lens. The supporting structure is configured to support two display devices. The first lens is configured to zoom an image displayed by a first display device and project the zoomed image onto a left eye. The second lens is configured to zoom an image displayed by a second display device and project the zoomed image onto a right eye. The 3D play system imposes less limitation on a watching environment and allows a user to watch 3D images conveniently.Type: ApplicationFiled: January 22, 2020Publication date: May 21, 2020Applicant: BOE Technology Group Co., Ltd.Inventors: Zhiguo Zhang, Qingjiang Wang
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Patent number: 9959793Abstract: An embodiment of the present disclosure provides a display system which is related to the field of display technology. The display system enables a display device to be switched between a normal display mode and an anti-peeping display mode. This display system comprises a display device which comprises a display panel for displaying content.Type: GrantFiled: November 13, 2014Date of Patent: May 1, 2018Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Yanshun Chen, Youmei Dong, Wenbo Li, Qingjiang Wang
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Publication number: 20170251199Abstract: A 3D play system is provided. The system includes a head-mounted/headset device. The head-mounted device includes a supporting structure; a first lens; and a second lens. The supporting structure is configured to support two display devices. The first lens is configured to zoom an image displayed by a first device and project the zoomed image onto a left eye. The second lens is configured to zoom an image displayed by a second display device and project the zoomed image onto a right eye. The 3D play system imposes less limitation on watching environment and allows a user to watch 3D images conveniently.Type: ApplicationFiled: March 1, 2016Publication date: August 31, 2017Applicant: BOE Technology Group Co., Ltd.Inventors: Zhiguo ZHANG, Qingjiang WANG
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Publication number: 20170185147Abstract: The present invention provides a method and apparatus for displaying a virtual object in three-dimensional (3D) space at a desired position with respect to a user. The method includes displaying a first 3D object at a first position through displaying a first left eye image and a first right eye image; and receiving a user interaction with the first 3D object. The first position is within a reachable distance to the user. The method further includes determining an actual coordinate values of the first 3D object with respect to the user based on the user interaction with the first 3D object; calculating positions of the user's left eye and right eye; and displaying the virtual object at the desired position based on the positions of the user's left eye and right eye.Type: ApplicationFiled: April 6, 2016Publication date: June 29, 2017Inventors: CHENYIN SHEN, QINGJIANG WANG
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Publication number: 20150379911Abstract: An embodiment of the present disclosure provides a display system which is related to the field of display technology. The display system enables a display device to be switched between a normal display mode and an anti-peeping display mode. This display system comprises a display device which comprises a display panel for displaying content.Type: ApplicationFiled: November 13, 2014Publication date: December 31, 2015Inventors: Yanshun Chen, Youmei Dong, Wenbo Li, Qingjiang Wang
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Patent number: 9215401Abstract: The present invention provides a display device, which comprises: a liquid crystal panel; a backlight unit configured to provide the liquid crystal panel with a light source; a digital interactive interface for video and audio configured to input/output all signals into/from the display device; a signal conversion module configured to convert the signal input via the digital interactive interface for video and audio into a first signal; a signal processing unit configured to adjust a resolution of the first signal converted by the signal conversion module to a predetermined resolution, convert the first signal whose resolution is adjusted to the predetermined resolution into a second signal for time-sequence control over the liquid crystal panel, and transmit the second signal to the liquid crystal panel; and a power source module configured to supply power to the liquid crystal panel, the backlight unit and the signal processing unit.Type: GrantFiled: October 30, 2013Date of Patent: December 15, 2015Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Haodi Liu, Qingjiang Wang, Zhiguo Zhang, Jing Liu, Yunlong Tian
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Publication number: 20140118614Abstract: The present invention provides a display device, which comprises: a liquid crystal panel; a backlight unit configured to provide the liquid crystal panel with a light source; a digital interactive interface for video and audio configured to input/output all signals into/from the display device; a signal conversion module configured to convert the signal input via the digital interactive interface for video and audio into a first signal; a signal processing unit configured to adjust a resolution of the first signal converted by the signal conversion module to a predetermined resolution, convert the first signal whose resolution is adjusted to the predetermined resolution into a second signal for time-sequence control over the liquid crystal panel, and transmit the second signal to the liquid crystal panel; and a power source module configured to supply power to the liquid crystal panel, the backlight unit and the signal processing unit.Type: ApplicationFiled: October 30, 2013Publication date: May 1, 2014Applicant: BOE TECHNOLOGY GROUP CO., LTD.Inventors: HAODI LIU, Qingjiang Wang, Zhiguo Zhang, Jing Liu, Yunlong Tian
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Publication number: 20140085568Abstract: A display device is provided, comprising a display panel and a polymer dispersed liquid crystal panel overlapped in order, and an ambient light source system disposed at a side of the polymer dispersed liquid crystal panel opposite to the display panel. The display device is simplified in structure and driving circuit thereof while avoiding impact on heat-resistance performance of the PDLC panel resulted from over temperature of the light source at side of the light guide plate.Type: ApplicationFiled: September 3, 2013Publication date: March 27, 2014Applicant: BOE Technology Group Co., Ltd.Inventors: Wenbo Li, Qingjiang Wang, Gang Wang
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Patent number: 8384848Abstract: The present invention relates to an edge-lighting LED backlight and LCD. The edge-lighting LED backlight comprises an LED light bar and a light guide plate, wherein a reflector is disposed between the LED light bar and the light guide plate, holes are set on the reflector, and light emitted from the LED light bar enters into the light guide plate through the holes. An LCD comprises the above edge-lighting LED backlight. In the above solution, the surface reflectance of the LED light bar is improved, the light loss is decreased and the utilization rate of light is improved by disposing the reflector between the LED light bar and the light guide plate, which decreases the quantity of the LEDs and the cost of the backlight.Type: GrantFiled: August 17, 2009Date of Patent: February 26, 2013Assignee: Boe Technology Group Co., Ltd.Inventors: Qingjiang Wang, Xingxing Zhao, Xiaobin Sun, Lifang Wan, Lilei Zhang, Gang Wang, Xibin Shao
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Patent number: 8384746Abstract: The embodiments of the present invention relate to a color management method and device, the method comprises: RGB values is acquired from image signal inputted from external device; the corresponding transmittance of red pixel, transmittance of green pixel, and transmittance of blue pixel are calculated with an formula according to said RGB values and pre-stored system transition matrix with standard transition matrix; a control signal to control a driving voltage and/or luminance of light source corresponding to the red, green and blue pixels of the display device is generated according to the calculated transmittance of red pixel, transmittance of green pixel, and transmittance of blue pixel, so as to control the display device to perform the color display. The color management method enables the display device to accurately restore the reproduction color information, thereby effectively solving the color distortion problem of the display device.Type: GrantFiled: November 12, 2010Date of Patent: February 26, 2013Assignee: BOE Technology Group Co., Ltd.Inventors: Lifang Wan, Lilei Zhang, Xingxing Zhao, Qingjiang Wang
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Publication number: 20110115836Abstract: The embodiments of the present invention relate to a color management method and device, the method comprises: RGB values is acquired from image signal inputted from external device; the corresponding transmittance of red pixel, transmittance of green pixel, and transmittance of blue pixel are calculated with an formula according to said RGB values and pre-stored system transition matrix with standard transition matrix; a control signal to control a driving voltage and/or luminance of light source corresponding to the red, green and blue pixels of the display device is generated according to the calculated transmittance of red pixel, transmittance of green pixel, and transmittance of blue pixel, so as to control the display device to perform the color display. The color management method enables the display device to accurately restore the reproduction color information, thereby effectively solving the color distortion problem of the display device.Type: ApplicationFiled: November 12, 2010Publication date: May 19, 2011Applicant: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Lifang WAN, Lilei ZHANG, Xingxing ZHAO, Qingjiang WANG
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Publication number: 20100103344Abstract: The present invention relates to an edge-lighting LED backlight and LCD. The edge-lighting LED backlight comprises an LED light bar and a light guide plate, wherein a reflector is disposed between the LED light bar and the light guide plate, holes are set on the reflector, and light emitted from the LED light bar enters into the light guide plate through the holes. An LCD comprises the above edge-lighting LED backlight. In the above solution, the surface reflectance of the LED light bar is improved, the light loss is decreased and the utilization rate of light is improved by disposing the reflector between the LED light bar and the light guide plate, which decreases the quantity of the LEDs and the cost of the backlight.Type: ApplicationFiled: August 17, 2009Publication date: April 29, 2010Applicant: BOE TECHNOLOGY GROUP CO., LTDInventors: Qingjiang Wang, Xingxing Zhao, Xiaobin Sun, Lifang Wan, Lilei Zhang, Gang Wang, Xibin Shao