Patents by Inventor Guanjun Tan
Guanjun Tan 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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Publication number: 20240427155Abstract: A head-mounted display may include a display system and an optical system that are supported by a housing. The optical system may be a catadioptric optical system having one or more lens elements. In one example, the optical system includes a single lens element and a retarder that is coated on a curved surface of the lens element. The retarder may be coated on an aspheric concave surface of the lens element. In another example the retarder may be coated on an aspheric convex surface of the lens element. One or more components of the optical system may be formed using a direct printing technique. This may allow for one or more adhesive layers and one or more hard coatings to be omitted from the optical system. A lens element may be directly printed on the display system to improve alignment between the optical system and the display system.Type: ApplicationFiled: September 4, 2024Publication date: December 26, 2024Inventors: Ran He, Zuoqian Wang, Brent J. Bollman, Francois R. Jacob, Guanjun Tan, John N. Border, Serhan O. Isikman, Wei-Liang Hsu, Di Liu
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Patent number: 12140765Abstract: A head-mounted display may include a display system and an optical system that are supported by a housing. The optical system may be a catadioptric optical system having one or more lens elements. In one example, the optical system includes a single lens element and a retarder that is coated on a curved surface of the lens element. The retarder may be coated on an aspheric concave surface of the lens element. In another example the retarder may be coated on an aspheric convex surface of the lens element. One or more components of the optical system may be formed using a direct printing technique. This may allow for one or more adhesive layers and one or more hard coatings to be omitted from the optical system. A lens element may be directly printed on the display system to improve alignment between the optical system and the display system.Type: GrantFiled: June 9, 2023Date of Patent: November 12, 2024Assignee: Apple Inc.Inventors: Ran He, Zuoqian Wang, Brent J. Bollman, Francois R. Jacob, Guanjun Tan, John N. Border, Serhan O. Isikman, Wei-Liang Hsu, Di Liu
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Patent number: 12050320Abstract: A display device and an electronic apparatus are disclosed. The display device comprises: an image-display component, which generates an image light output, wherein at least one pixel light of the image light output has light polarization components of at least two polarization states or has a polarization light component of a polarization state and a non-polarization light component; and a polarization dependent image offset component, which receives the image light output coming from the image display component and deflects the polarization light components based on the polarization states to separate each of the at least one pixel light into at least two pixel lights, or deflects the polarization light component from the non-polarization light component to separate each of the at least one pixel light into at least two pixel lights.Type: GrantFiled: February 21, 2020Date of Patent: July 30, 2024Assignees: University of Central Florida Research Foundation, Inc., Goertek Inc.Inventors: Tao Zhan, Jianghao Xiong, Guanjun Tan, Yun-Han Lee, Shin-Tson Wu, Sheng Liu, Jilin Yang
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Publication number: 20240081134Abstract: A hybrid display may include different display portions with different resolutions. The high resolution display portion may be positioned in a main viewing area for the viewer whereas the low resolution display portion may be positioned in a peripheral viewing area. The high resolution display portion may have a silicon backplane. The low resolution display portion may have a different type of backplane such as a thin-film transistor backplane. The different display portions may optionally share a common organic light-emitting diode layer such that light is emitted from the same plane across both display portions. The high resolution display portion may emit light through a transparent window in the low resolution display portion. A high resolution display may also be formed by separately forming a frontplane and a backplane. Conductive attachment structures such as indium bumps may be used to mechanically and electrically connect the backplane to the frontplane.Type: ApplicationFiled: June 5, 2023Publication date: March 7, 2024Inventors: James E Pedder, Patrick B Bennett, Michael Slootsky, Graham B Myhre, Andrew Lin, Cheuk Chi Lo, Guanjun Tan
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Publication number: 20240045210Abstract: A display may include a display panel that emits light. The light from the display panel may be focused by a lens assembly towards a viewer. A light redirecting layer may be included in the display between the display panel and the lens assembly to ensure that the lens assembly receives incident light at an optimal angle. The light redirecting layer may redirect light by different amounts at different portions of the light redirecting layer. The magnitude of the redirection angle may increase with increasing separation from the center of the light redirecting layer. The light redirecting layer may redirect light away from the center of the light redirecting layer. The light redirecting layer may be a geometric phase lens formed using a liquid crystal film. The display may also include a circular polarizer, an additional circular polarizer, and an additional quarter waveplate.Type: ApplicationFiled: January 3, 2022Publication date: February 8, 2024Inventors: Guanjun Tan, Glenn M. Schuster, Jin Yan, Mehmet Mutlu, Giovanni Carbone, Enkhamgalan Dorjgotov
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Publication number: 20230333390Abstract: A head-mounted display may include a display system and an optical system that are supported by a housing. The optical system may be a catadioptric optical system having one or more lens elements. In one example, the optical system includes a single lens element and a retarder that is coated on a curved surface of the lens element. The retarder may be coated on an aspheric concave surface of the lens element. In another example the retarder may be coated on an aspheric convex surface of the lens element. One or more components of the optical system may be formed using a direct printing technique. This may allow for one or more adhesive layers and one or more hard coatings to be omitted from the optical system. A lens element may be directly printed on the display system to improve alignment between the optical system and the display system.Type: ApplicationFiled: June 9, 2023Publication date: October 19, 2023Inventors: Ran He, Zuoqian Wang, Brent J. Bollman, Francois R. Jacob, Guanjun Tan, John N. Border, Serhan O. Isikman, Wei-Liang Hsu, Di Liu
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Patent number: 11778858Abstract: An electronic device may have a display with an array of display pixels. To increase the efficiency of the display, the display may also include an array of microlenses. Each microlens may overlap and focus light from a respective pixel. Pixels for one of the colors of light may have a high aspect ratio. These pixels may be covered by two microlenses or a single cylindrical microlens. The microlens dimensions may be tuned to mitigate non-uniformities in the brightness profiles of the pixels. The microlens edges may be laterally shifted towards or away from the center of the light-emitting areas to either reduce or increase the focusing power of the microlens. The microlenses and color filter elements in each pixel may also be shifted to account for the chief ray angle of the display.Type: GrantFiled: November 2, 2021Date of Patent: October 3, 2023Assignee: APPLE INC.Inventors: Yuan Chen, Tae Woon Cha, Jie Li, Junhwan Lim, Xiaokai Li, Zhibing Ge, Guanjun Tan, Giovanni Carbone, Jose A. Dominguez-Caballero, Thanh Son Nguyen
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Patent number: 11719936Abstract: A head-mounted display may include a display system and an optical system that are supported by a housing. The optical system may be a catadioptric optical system having one or more lens elements. In one example, the optical system includes a single lens element and a retarder that is coated on a curved surface of the lens element. The retarder may be coated on an aspheric concave surface of the lens element. In another example the retarder may be coated on an aspheric convex surface of the lens element. One or more components of the optical system may be formed using a direct printing technique. This may allow for one or more adhesive layers and one or more hard coatings to be omitted from the optical system. A lens element may be directly printed on the display system to improve alignment between the optical system and the display system.Type: GrantFiled: January 29, 2021Date of Patent: August 8, 2023Assignee: Apple Inc.Inventors: Ran He, Zuoqian Wang, Brent J. Bollman, Francois R. Jacob, Guanjun Tan, John N. Border, Serhan O. Isikman, Wei-Liang Hsu, Di Liu
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Patent number: 11624913Abstract: An optical display system includes an information display (image-generating) component, a polarization dependent image offset optical element and possibly also a polarization rotator. By controlling the image offset optical element either by direct applying voltage or by controlling the polarization of the displayed light through the polarization rotator, the display pixels can be switched by a certain portion. By switching between offset and non-offset state with appropriate image displayed, the resolution as observed by the users can be enhanced.Type: GrantFiled: June 22, 2017Date of Patent: April 11, 2023Assignee: University of Central Florida Research Foundation, Inc.Inventors: Yun-Han Lee, Tao Zhan, Guanjun Tan, Fangwang Gou, Fenglin Peng, Shin-Tson Wu
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Publication number: 20220299770Abstract: A display device and an electronic apparatus are disclosed. The display device comprises: an image-display component, which generates an image light output, wherein at least one pixel light of the image light output has light polarization components of at least two polarization states or has a polarization light component of a polarization state and a non-polarization light component; and a polarization dependent image offset component, which receives the image light output coming from the image display component and deflects the polarization light components based on the polarization states to separate each of the at least one pixel light into at least two pixel lights, or deflects the polarization light component from the non-polarization light component to separate each of the at least one pixel light into at least two pixel lights.Type: ApplicationFiled: February 21, 2020Publication date: September 22, 2022Applicants: University of Central Florida Research Foundation, Inc., Goertek Inc.Inventors: Tao Zhan, Jianghao Xiong, Guanjun Tan, Yun-Han Lee, Shin-Tson Wu, Sheng Liu, Jilin Yang
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Patent number: 11442306Abstract: An optical display system includes an information display (image-generating) component, a polarization rotator, a polarization dependent optical element, an input holographic coupler, a light guide and an output holographic coupler. By controlling the polarization of the displayed light through the polarization rotator, the polarization dependent optical element changes the viewable content to different distances from the viewer. This enables the generation of a proper light field which will then be coupled into the light guide through the input holographic coupler, and finally go through the output holographic coupler to a user's eye.Type: GrantFiled: June 7, 2019Date of Patent: September 13, 2022Assignee: University of Central Florida Research Foundation, IncInventors: Yun-han Lee, Fenglin Peng, Guanjun Tan, Yishi Weng, Shin-Tson Wu
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Publication number: 20220236570Abstract: An input coupler component, optical display system and electronics apparatus are disclosed. The input coupler component, comprisesing: an input polarization volume grating, which is disposed to deflect an. input polarized electromagnetic wave into a waveguide in a total internal reflection manner and an input polarization management layer, which. adjusts the polarization.Type: ApplicationFiled: August 18, 2020Publication date: July 28, 2022Applicants: University of Central Florida Research Foundation, Inc., Goertek Inc.Inventors: Yun-Han Lee, Guanjun Tan, Tao Zhan, Kun Yin, Jianghao Xiong, Shin-Tson Wu, Sheng Liu, Jilin Yang
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Publication number: 20210294105Abstract: A head-mounted display may include a display system and an optical system that are supported by a housing. The optical system may be a catadioptric optical system having one or more lens elements. In one example, the optical system includes a single lens element and a retarder that is coated on a curved surface of the lens element. The retarder may be coated on an aspheric concave surface of the lens element. In another example the retarder may be coated on an aspheric convex surface of the lens element. One or more components of the optical system may be formed using a direct printing technique. This may allow for one or more adhesive layers and one or more hard coatings to be omitted from the optical system. A lens element may be directly printed on the display system to improve alignment between the optical system and the display system.Type: ApplicationFiled: January 29, 2021Publication date: September 23, 2021Inventors: Ran He, Zuoqian Wang, Brent J. Bollman, Francois R. Jacob, Guanjun Tan, John N. Border, Serhan O. Isikman, Wei-Liang Hsu, Di Liu
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Publication number: 20200159036Abstract: An optical display system includes an information display (image-generating) component, a polarization dependent image offset optical element and possibly also a polarization rotator. By controlling the image offset optical element either by direct applying voltage or by controlling the polarization of the displayed light through the polarization rotator, the display pixels can be switched by a certain portion. By switching between offset and non-offset state with appropriate image displayed, the resolution as observed by the users can be enhanced.Type: ApplicationFiled: June 22, 2017Publication date: May 21, 2020Inventors: Yun-Han Lee, Tao Zhan, Guanjun Tan, Fangwang GOU, Fenglin PENG, Shin-Tsan Wu
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Publication number: 20200110267Abstract: An optical display system includes an information display (image-generating) component, a polarization dependent image offset optical element and possibly also a polarization rotator. By controlling the image offset optical element either by direct applying voltage or by controlling the polarization of the displayed light through the polarization rotator, the display pixels can be switched by a certain portion. By switching between offset and non-offset state with appropriate image displayed, the resolution as observed by the users can be enhanced.Type: ApplicationFiled: June 22, 2017Publication date: April 9, 2020Inventors: Yun-Han LEE, Tao ZHAN, Guanjun TAN, Fangwang GOU, Fenglin PENG, Shin-Tson WU
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Patent number: 10582440Abstract: Disclosed is a network access management method. The network access management method includes: acquiring a network transmission state between a network device and a terminal having assessed the network device; and setting an access control parameter of the network device as a target parameter value, herein the target parameter value is used for controlling the number of terminals assessing the network device to match the network transmission state.Type: GrantFiled: July 6, 2016Date of Patent: March 3, 2020Assignee: ZTE CORPORATIONInventors: Di Zhang, Haitao Zhao, Guanjun Tan
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Publication number: 20190285939Abstract: An optical display system includes an information display (image-generating) component, a polarization rotator, a polarization dependent optical element, an input holographic coupler, a light guide and an output holographic coupler. By controlling the polarization of the displayed light through the polarization rotator, the polarization dependent optical element changes the viewable content to different distances from the viewer. This enables the generation of a proper light field which will then be coupled into the light guide through the input holographic coupler, and finally go through the output holographic coupler to a user's eye.Type: ApplicationFiled: June 7, 2019Publication date: September 19, 2019Applicant: UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION, INC.Inventors: Yun-han Lee, Fenglin Peng, Guanjun Tan, Yishi Weng, Shin-Tson Wu
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Publication number: 20180359680Abstract: Disclosed is a network access management method. The network access management method includes: acquiring a network transmission state between a network device and a terminal having assessed the network device; and setting an access control parameter of the network device as a target parameter value, herein the target parameter value is used for controlling the number of terminals assessing the network device to match the network transmission state.Type: ApplicationFiled: July 6, 2016Publication date: December 13, 2018Applicant: ZTE CORPORATIONInventors: Di ZHANG, Haitao ZHAO, Guanjun TAN
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Patent number: 10115327Abstract: An optical display system includes an information display (image-generating) component, a polarization dependent image offset optical element and possibly also a polarization rotator. By controlling the image offset optical element either by direct applying voltage or by controlling the polarization of the displayed light through the polarization rotator, the display pixels can be switched by a certain portion. By switching between offset and non-offset state with appropriate image displayed, the resolution as observed by the users can be enhanced.Type: GrantFiled: June 22, 2017Date of Patent: October 30, 2018Assignee: UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION, INC.Inventors: Yun-Han Lee, Tao Zhan, Guanjun Tan, Fangwang Gou, Fenglin Peng, Shin-Tson Wu
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Patent number: 9769747Abstract: Disclosed are a power saving method for a terminal device and the terminal device thereof, wherein the method includes: a terminal device enabling a power saving mode and obtaining an adjusted central processing unit (CPU) clock speed set by a user and an adjusted screen resolution set by the user; if the terminal device obtains the adjusted CPU clock speed set by the user, the terminal device adjusting the CPU to operate according to the adjusted CPU clock speed set by the user; if the terminal device obtains the adjusted screen resolution set by the user, the terminal device adjusting a screen display according to the adjusted screen resolution set by the user. The embodiment of the present document saves the power consumption of a terminal device by downsizing the screen display and/or reducing the CPU clock speed, thereby effectively reducing power consumption of the terminal device.Type: GrantFiled: September 6, 2013Date of Patent: September 19, 2017Assignee: ZTE CorporationInventors: Guanjun Tan, Jianning Wu, Anli Zhong, Zuoyi Zhu