Patents by Inventor Junguo Liu
Junguo 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).
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Patent number: 11531017Abstract: In the present application, a method for assessing water shortage risk, device, computer device and storage medium are provided, wherein the method for assessing water shortage risk comprises: acquiring a volume of blue water flowing into soil of a to-be-assessed-area within a target time period, and a volume of retention water flowing into and retained in the soil of the to-be-assessed-area within the target time period; and determining a water shortage risk indicator of the to-be-assessed-area indicating a degree of water shortage risk of the to-be-assessed-area, according to a ratio of the volume of blue water to the volume of retention water. A higher ratio of the volume of blue water to the volume of retention water indicates poor ability of the soil's water to meet the demand for use and greater degree of the water shortage risk of the soil.Type: GrantFiled: July 23, 2020Date of Patent: December 20, 2022Inventors: Junguo Liu, Ganquan Mao
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Publication number: 20210018484Abstract: In the present application, a method for assessing water shortage risk, device, computer device and storage medium are provided, wherein the method for assessing water shortage risk comprises: acquiring a volume of blue water flowing into soil of a to-be-assessed-area within a target time period, and a volume of retention water flowing into and retained in the soil of the to-be-assessed-area within the target time period; and determining a water shortage risk indicator of the to-be-assessed-area indicating a degree of water shortage risk of the to-be-assessed-area, according to a ratio of the volume of blue water to the volume of retention water. A higher ratio of the volume of blue water to the volume of retention water indicates poor ability of the soil's water to meet the demand for use and greater degree of the water shortage risk of the soil.Type: ApplicationFiled: July 23, 2020Publication date: January 21, 2021Inventors: Junguo LIU, Ganquan MAO
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Patent number: 10867573Abstract: Provided in the embodiments of the disclosure are a common voltage control circuit and method, a display panel and a display device. The control circuit includes a temperature sensing circuit and a voltage adjusting circuit. The temperature sensing circuit is configured to sense the ambient temperature. The voltage adjusting circuit is coupled to the temperature sensing circuit and the common electrode, and is configured to provide a corresponding common voltage to the common electrode based on a temperature signal from the temperature sensing circuit. According to the embodiments of the present disclosure, the common voltage may be changed according to the ambient temperature to improve the image sticking.Type: GrantFiled: September 4, 2017Date of Patent: December 15, 2020Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE SPECIAL DISPLAY TECHNOLOGY CO., LTD.Inventors: Xiaolong Liu, Shihao Wang, Zhicheng Wang, Shenglin Sun, Junguo Liu
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Publication number: 20200342828Abstract: Provided in the embodiments of the disclosure are a common voltage control circuit and method, a display panel and a display device. The control circuit includes a temperature sensing circuit and a voltage adjusting circuit. The temperature sensing circuit is configured to sense the ambient temperature. The voltage adjusting circuit is coupled to the temperature sensing circuit and the common electrode, and is configured to provide a corresponding common voltage to the common electrode based on a temperature signal from the temperature sensing circuit. According to the embodiments of the present disclosure, the common voltage may be changed according to the ambient temperature to improve the image sticking.Type: ApplicationFiled: September 4, 2017Publication date: October 29, 2020Inventors: Xiaolong LIU, Shihao WANG, Zhicheng WANG, Shenglin SUN, Junguo LIU
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Patent number: 10789896Abstract: A method for adjusting a backlight and a device for adjusting a backlight are provided. A parameter may be set as one of detectable physical quantities of the backlight. The physical quantity, for example, may be a current through a light emitting device, brightness of the light emitting device, or the like. An average value of the parameter is obtained according to values of the parameter which are detected in real time. When the average value is beyond a preset parameter range, a value of the voltage which is input to the light emitting device is adjusted, so that the current through the light emitting device is adjusted, and brightness of the backlight is adjusted. Thereby, brightness of the backlight can be adjusted in different ways, so that brightness of the backlight can be stable in different environments.Type: GrantFiled: June 26, 2018Date of Patent: September 29, 2020Assignees: BEIJING BOE SPECIAL DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Junguo Liu, Wenze Yao, Shenglin Sun, Huizhong Zhu
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Patent number: 10490145Abstract: The present application discloses a method for displaying image using a display panel. The method includes receiving a frame of image data, which is divided into a first portion and a second portion based on that each sub-pixel in the first portion has an initial grayscale value smaller than that of each subpixel in the second portion. The method includes converting the frame of image data into N frames of image data. Each sub-pixel in the first portion is provided with a first grayscale value in K of the N frames and a second grayscale value in N-K of the N frames, and each sub-pixel in the second portion is retained with its initial grayscale value. N is no smaller than 2 and K varies from 1 to N?1. The method includes displaying each of the N frames of images respectively based on the N frames of image data according to a frame refreshing frequency.Type: GrantFiled: June 2, 2017Date of Patent: November 26, 2019Assignees: BOE TECHNOLOGY GROUP CO., LTD., Beijing BOE Special Display Technology Co., Ltd.Inventors: Huizhong Zhu, Junguo Liu, Shenglin Sun
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Publication number: 20190355322Abstract: Provided in the embodiments of the disclosure are a common voltage control circuit and method, a display panel and a display device. The control circuit includes a temperature sensing circuit and a voltage adjusting circuit. The temperature sensing circuit is configured to sense the ambient temperature. The voltage adjusting circuit is coupled to the temperature sensing circuit and the common electrode, and is configured to provide a corresponding common voltage to the common electrode based on a temperature signal from the temperature sensing circuit. According to the embodiments of the present disclosure, the common voltage may be changed according to the ambient temperature to improve the image sticking.Type: ApplicationFiled: September 4, 2017Publication date: November 21, 2019Inventors: Xiaolong LIU, Shihao WANG, Zhicheng WANG, Shenglin SUN, Junguo LIU
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Publication number: 20190197969Abstract: A method for adjusting a backlight and a device for adjusting a backlight are provided. A parameter may be set as one of detectable physical quantities of the backlight. The physical quantity, for example, may be a current through a light emitting device, brightness of the light emitting device, or the like. An average value of the parameter is obtained according to values of the parameter which are detected in real time. When the average value is beyond a preset parameter range, a value of the voltage which is input to the light emitting device is adjusted, so that the current through the light emitting device is adjusted, and brightness of the backlight is adjusted. Thereby, brightness of the backlight can be adjusted in different ways, so that brightness of the backlight can be stable in different environments.Type: ApplicationFiled: June 26, 2018Publication date: June 27, 2019Inventors: Junguo LIU, Wenze YAO, Shenglin SUN, Huizhong ZHU
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Publication number: 20190130853Abstract: The present application discloses a method for displaying image using a display panel. The method includes receiving a frame of image data, which is divided into a first portion and a second portion based on that each sub-pixel in the first portion has an initial grayscale value smaller than that of each subpixel in the second portion. The method includes converting the frame of image data into N frames of image data. Each sub-pixel in the first portion is provided with a first grayscale value in K of the N frames and a second grayscale value in N?K of the N frames, and each sub-pixel in the second portion is retained with its initial grayscale value. N is no smaller than 2 and K varies from 1 to N?1. The method includes displaying each of the N frames of images respectively based on the N frames of image data according to a frame refreshing frequency.Type: ApplicationFiled: June 2, 2017Publication date: May 2, 2019Applicants: BOE TECHNOLOGY GROUP CO., LTD., Beijing BOE Special Display Technology Co., Ltd.Inventors: Huizhong Zhu, Junguo Liu, Shenglin Sun
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Patent number: 10137837Abstract: A rearview mirror, including a first substrate (100), a second substrate (200) cell-assembled to the first substrate (100), and a crystal material (300) filled between the first substrate (100) and the second substrate (200), a plurality of strip electrodes (11) are disposed on a side of the first substrate (100) that faces to the second substrate (200), an interval is formed between two adjacent strip electrodes (110), the strip electrodes (110) are made of a transparent electrode material, a planar electrode (210) capable of at least partially reflecting light is disposed on a side of the second substrate (200) that faces to the first substrate (100). In the present application, the refractive indices of the liquid crystal material (300) in the rearview mirror are changed by changing the voltage signal provided to the rearview mirror, such that an anti-glare operation mode of the rearview mirror is achieved.Type: GrantFiled: July 28, 2015Date of Patent: November 27, 2018Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Shenglin Sun, Feng Bai, Yun Qiu, Zhidong Wang, Junguo Liu, Zhiguo Chen, Lihua Liu
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Patent number: 9996200Abstract: Embodiments of the invention relate to a touch screen, a display device and manufacturing method thereof being usable for realizing 3D display. The touch screen comprises: an upper substrate and a lower substrate cell-assembled; and liquid crystal, filled between the upper substrate and the lower substrate, wherein the upper substrate comprises: an upper transparent substrate and a transparent conductive layer disposed on the upper transparent substrate, i.e. on a side of the upper transparent substrate facing the lower substrate; the lower substrate comprises: a lower transparent substrate and a first sensing electrode layer, an insulating layer and a second sensing electrode layer sequentially disposed on the lower transparent substrate, i.e.Type: GrantFiled: June 27, 2013Date of Patent: June 12, 2018Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jun Long, Junguo Liu, Hao Wu, Rui Li
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Patent number: 9914394Abstract: The present invention provides a rearview mirror comprising a panel and a control circuit, a first substrate in the panel is provided with a planar transparent electrode layer, a second substrate is provided with a transparent hydrophobic material layer and multiple block electrodes, a side of the transparent hydrophobic material layer facing the first substrate is provided with multiple cells, lightproof electro-wetting ink is provided within each cell, the block electrodes are provided on a side of the transparent hydrophobic material layer away from the first substrate and can at least reflect part of light entering the rearview mirror from first substrate side, the control circuit is configured to control area of each cell covered by the electro-wetting ink in the cell by controlling a change in intensity of the electric field between the planar transparent electrode layer and the block electrodes.Type: GrantFiled: August 19, 2015Date of Patent: March 13, 2018Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Shenglin Sun, Feng Bai, Yun Qiu, Zhidong Wang, Junguo Liu, Zhiguo Chen, Lihua Liu
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Patent number: 9885811Abstract: Embodiments of the present invention provide a prism film and a method and an apparatus for manufacturing the prism film. The prism film comprises a substrate which is provided with prism protrusions formed of photoresist; wherein at least two prism protrusions have different heights. The embodiments of the present invention adopt the laser interference lithography apparatus for forming the prism film, such that the prism film has adjustable prism period and modulation depths. Moreover, the depth of modulation is distributed randomly on the surface of the manufactured prism film, and a prism direction and a prism period can be adjusted conveniently.Type: GrantFiled: August 21, 2013Date of Patent: February 6, 2018Assignee: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Rui Li, Junguo Liu
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DETECTION APPARATUS FOR A DISPLAY PANEL COMPONENT AND METHOD FOR DETECTING A DISPLAY PANEL COMPONENT
Publication number: 20180003483Abstract: The present disclosure provides a detection apparatus for a display panel component and a method for detecting a display panel component, the detection apparatus of the display panel component including a reflectance measuring device for measuring the light reflectance of the display panel component along a preset path, the preset path passing through a first position and a second position, and a distance measuring device for acquiring a distance between the first position and the second position according to the measured data of the reflectance measuring device, wherein there is a light reflectance abrupt change in the first position and the second position, respectively.Type: ApplicationFiled: January 11, 2016Publication date: January 4, 2018Inventors: Junguo LIU, Shenglin SUN, Kang ZHENG, Hui LI -
Patent number: 9830007Abstract: A touch naked-eye 3D grating and a display device are disclosed. The naked-eye 3D grating includes a touch electrode structure between the upper substrate and the plate electrode, and the touch electrode structure includes a plurality of first touch sense lines and a plurality of second touch sense lines arranged to intersect with and insulated from each other, and includes touch electrodes located within the areas defined by adjacent two first touch sense lines and adjacent two second touch sense lines; each touch electrode creates a capacitor with the plate electrode so as to achieve the touch function by way of detecting the signal changes over the first touch sense line and the second touch sense line connected with the touch electrode. The display device includes the aforesaid touch naked-eye 3D grating. This touch naked-eye 3D grating simplifies the assembly configuration as well as its production process, thus reducing overall cost for manufacturing the assembly.Type: GrantFiled: August 26, 2013Date of Patent: November 28, 2017Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jun Long, Junguo Liu, Hongkun Zhang, Rui Li
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Publication number: 20170263198Abstract: The present disclosure provides a system and method for adjusting luminance of a display screen, the method comprising: obtaining a current luminance value of each pixel in a preset grayscale image of a display screen, wherein the preset grayscale is any grayscale lower than a preset grayscale threshold; determining a target luminance value of each pixel; adjusting luminance of some or all of the pixels according to the current luminance value and the target luminance value of each pixel, so that a luminance value of each pixel reaches the target luminance value.Type: ApplicationFiled: July 12, 2016Publication date: September 14, 2017Inventors: Huizhong ZHU, Junguo LIU, Moyu ZHU
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Publication number: 20170001569Abstract: A rearview mirror, including a first substrate (100), a second substrate (200) cell-assembled to the first substrate (100), and a crystal material (300) filled between the first substrate (100) and the second substrate (200), a plurality of strip electrodes (11) are disposed on a side of the first substrate (100) that faces to the second substrate (200), an interval is formed between two adjacent strip electrodes (110), the strip electrodes (110) are made of a transparent electrode material, a planar electrode (210) capable of at least partially reflecting light is disposed on a side of the second substrate (200) that faces to the first substrate (100). In the present application, the refractive indices of the liquid crystal material (300) in the rearview mirror are changed by changing the voltage signal provided to the rearview mirror, such that an anti-glare operation mode of the rearview mirror is achieved.Type: ApplicationFiled: July 28, 2015Publication date: January 5, 2017Inventors: Shenglin Sun, Feng Bai, Yun Qiu, Zhidong Wang, Junguo Liu, Zhiguo Chen, Lihua Liu
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Publication number: 20160368423Abstract: The present invention provides a rearview mirror comprising a panel and a control circuit, a first substrate in the panel is provided with a planar transparent electrode layer, a second substrate is provided with a transparent hydrophobic material layer and multiple block electrodes, a side of the transparent hydrophobic material layer facing the first substrate is provided with multiple cells, lightproof electro-wetting ink is provided within each cell, the block electrodes are provided on a side of the transparent hydrophobic material layer away from the first substrate and can at least reflect part of light entering the rearview mirror from first substrate side, the control circuit is configured to control area of each cell covered by the electro-wetting ink in the cell by controlling a change in intensity of the electric field between the planar transparent electrode layer and the block electrodes.Type: ApplicationFiled: August 19, 2015Publication date: December 22, 2016Inventors: Shenglin SUN, Feng BAI, Yun QIU, Zhidong WANG, Junguo LIU, Zhiguo CHEN, Lihua LIU
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Patent number: 9436237Abstract: Embodiments of the present invention provide a heat dissipation device of a notebook computer. The notebook computer is provided with a keyboard. The heat dissipation device includes a heat dissipation component and a heat guiding box, the heat dissipation component is communicated with the heat guiding box, the keyboard is also communicated with the heat guiding box, and the heat guiding box is used to transmit heat in the heat dissipation component to the keyboard.Type: GrantFiled: August 6, 2013Date of Patent: September 6, 2016Assignee: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Yong Song, Junguo Liu
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Publication number: 20160132144Abstract: Embodiments of the invention relate to a touch screen, a display device and manufacturing method thereof being usable for realizing 3D display. The touch screen comprises: an upper substrate and a lower substrate cell-assembled; and liquid crystal, filled between the upper substrate and the lower substrate, wherein the upper substrate comprises: an upper transparent substrate and a transparent conductive layer disposed on the upper transparent substrate, i.e. on a side of the upper transparent substrate facing the lower substrate; the lower substrate comprises: a lower transparent substrate and a first sensing electrode layer, an insulating layer and a second sensing electrode layer sequentially disposed on the lower transparent substrate, i.e.Type: ApplicationFiled: June 27, 2013Publication date: May 12, 2016Inventors: Jun LONG, Junguo LIU, Hao WU, Rui LI