Patents by Inventor Mingi CHU
Mingi CHU 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: 11011118Abstract: The present application discloses a pixel-driving circuit in a display panel. The pixel-driving circuit includes a first transistor being provided with a fixed voltage, a driving transistor having a gate configured to receive the fixed voltage controlled by the first transistor and a drain coupled to a first power supply, a capacitor coupled between the gate and a source of the driving transistor, a light-emitting device coupled to the source and a second power supply, a second transistor having a drain coupled to the source of the driving transistor and a source coupled to a data line, a sensing sub-circuit coupled to the data line in a first period, and a driving sub-circuit coupled to the data line in a second period. The sensing sub-circuit and the driving sub-circuit are configured to connect to the data line in a time-divisional manner respectively for sensing and compensating the pixel-driving circuit.Type: GrantFiled: November 30, 2017Date of Patent: May 18, 2021Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Yicheng Lin, Quanhu Li, Guang Yan, Yu Wang, Cuili Gai, Mingi Chu
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Patent number: 10997898Abstract: The present disclosure provides a compensation method for a display panel, a compensation system for a display panel, and a display device. The display panel includes a plurality of sub-pixels, and the compensation method includes: respectively determining a current aging degree coefficient of each sub-pixel according to historical display data of the sub-pixel; and, for each sub-pixel, performing aging compensation on the sub-pixel according to the current aging degree coefficient of the sub-pixel when a current frame is displayed. The present disclosure further provides a compensation system for a display panel, and a display device.Type: GrantFiled: August 31, 2020Date of Patent: May 4, 2021Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Lirong Wang, Fei Yang, Yi Chen, Yu Wang, Mingi Chu
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Patent number: 10971050Abstract: The present application discloses a method for driving a display panel for displaying images. The method includes determining multiple subpixels in a bright area of an image to be displayed by the display panel. The bright area is an image display area having a luminance value maintained greater than a threshold luminance value for a duration longer than a threshold duration. Additionally, the method includes driving the multiple subpixels to emit light alternatingly in a period of alternate light-emission for displaying the image. Furthermore, the method includes driving all adjacent subpixels surrounding any one subpixel that is not emitting light during the period of alternate light-emission to provide luminance rendering to the one subpixel such that the luminance value of the bright area is greater than the threshold luminance value.Type: GrantFiled: December 11, 2017Date of Patent: April 6, 2021Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Yicheng Lin, Mingi Chu
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Patent number: 10930195Abstract: The present application discloses a method for driving a display panel for displaying images. The method includes determining multiple subpixels in a bright area of an image to be displayed by the display panel. The bright area is an image display area having a luminance value maintained greater than a threshold luminance value for a duration longer than a threshold duration. Additionally, the method includes driving the multiple subpixels to emit light alternatingly in a period of alternate light-emission for displaying the image. Furthermore, the method includes driving all adjacent subpixels surrounding any one subpixel that is not emitting light during the period of alternate light-emission to provide luminance rendering to the one subpixel such that the luminance value of the bright area is greater than the threshold luminance value.Type: GrantFiled: December 11, 2017Date of Patent: February 23, 2021Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Yicheng Lin, Mingi Chu
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Publication number: 20200402446Abstract: The present disclosure provides a compensation method for a display panel, a compensation system for a display panel, and a display device. The display panel includes a plurality of sub-pixels, and the compensation method includes: respectively determining a current aging degree coefficient of each sub-pixel according to historical display data of the sub-pixel; and, for each sub-pixel, performing aging compensation on the sub-pixel according to the current aging degree coefficient of the sub-pixel when a current frame is displayed. The present disclosure further provides a compensation system for a display panel, and a display device.Type: ApplicationFiled: August 31, 2020Publication date: December 24, 2020Inventors: Lirong WANG, Fei YANG, Yi CHEN, Yu WANG, Mingi CHU
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Publication number: 20200327839Abstract: The present application discloses a method for driving a display panel for displaying images. The method includes determining multiple subpixels in a bright area of an image to be displayed by the display panel. The bright area is an image display area having a luminance value maintained greater than a threshold luminance value for a duration longer than a threshold duration. Additionally, the method includes driving the multiple subpixels to emit light alternatingly in a period of alternate light-emission for displaying the image. Furthermore, the method includes driving all adjacent subpixels surrounding any one subpixel that is not emitting light during the period of alternate light-emission to provide luminance rendering to the one subpixel such that the luminance value of the bright area is greater than the threshold luminance value.Type: ApplicationFiled: December 11, 2017Publication date: October 15, 2020Applicant: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Yicheng Lin, Mingi Chu
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Publication number: 20200327855Abstract: The present application discloses a pixel-driving circuit in a display panel. The pixel-driving circuit includes a first transistor being provided with a fixed voltage, a driving transistor having a gate configured to receive the fixed voltage controlled by the first transistor and a drain coupled to a first power supply, a capacitor coupled between the gate and a source of the driving transistor, a light-emitting device coupled to the source and a second power supply, a second transistor having a drain coupled to the source of the driving transistor and a source coupled to a data line, a sensing sub-circuit coupled to the data line in a first period, and a driving sub-circuit coupled to the data line in a second period. The sensing sub-circuit and the driving sub-circuit are configured to connect to the data line in a time-divisional manner respectively for sensing and compensating the pixel-driving circuit.Type: ApplicationFiled: November 30, 2017Publication date: October 15, 2020Applicant: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Yicheng Lin, Quanhu Li, Guang Yan, Yu Wang, Cuili Gai, Mingi Chu
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Patent number: 10741146Abstract: The present disclosure discloses an electroluminescent display screen and brightness uniformity compensation method and system thereof, wherein the method comprises: performing test modeling based on a correspondence between an aging rule of an electroluminescent diode in the display screen and an aging rule of a thin film transistor (TFT) in the display screen to acquire a brightness uniformity compensation model; acquiring a first compensation parameter and a second compensation parameter required for compensating the TFT, and acquiring a current brightness ratio of the electroluminescent diode through invoking the brightness uniformity compensation model based on the compensation parameters; performing brightness uniformity compensation on the display screen based on the acquired current brightness ratio of the electroluminescent diode.Type: GrantFiled: September 20, 2017Date of Patent: August 11, 2020Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Danna Song, Song Meng, Mingi Chu
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Publication number: 20200234647Abstract: A display panel, a display device, and a compensating method are disclosed. The display panel includes: a plurality of sub-pixels arranged in rows and columns, a plurality of data lines connected to the plurality of sub-pixels, and a plurality of sensing driving lines connected to the plurality of sub-pixels, each of plurality of the sub-pixels includes a pixel circuit; the plurality of sub-pixels constitute a plurality of pixel units, the plurality of pixel units are arranged in a plurality of rows and a plurality of columns, and each of the plurality of pixel units includes four sub-pixels; pixel circuits of the four sub-pixels are connected to a same data line of the plurality of data lines; and the pixel circuits of the four sub-pixels are connected to four sensing driving lines of the plurality of sensing driving lines in a one-to-one correspondence manner.Type: ApplicationFiled: April 3, 2020Publication date: July 23, 2020Inventors: Yi Cheng LIN, Quanhu LI, Cuili GAI, Yu WANG, Mingi CHU, Chien Pang HUANG
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Patent number: 10706772Abstract: A color complementation method for a WOLED display device includes: determining at least two target output brightnesses; measuring and adjusting the WOLED display device by using the at least two target output brightnesses, respectively, to obtain data to be used; wherein the measuring and adjusting includes: allowing an output brightnesses of the WOLED display device to be same as each of the target output brightnesses, and adjusting output brightnesses of sub-pixels and obtaining the output brightnesses of the sub-pixels at a preset chromaticity coordinate as color complementation brightnesses of the sub-pixels; generating, according to the data to be used, correlations between the output brightnesses of the WOLED display device and the color complementation brightnesses of the sub-pixels; according to the correlations, performing color complementation of the WOLED display device.Type: GrantFiled: June 27, 2018Date of Patent: July 7, 2020Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventor: Mingi Chu
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Publication number: 20200152154Abstract: A pixel compensation method, a pixel compensation apparatus and a pixel compensation system are disclosed. The pixel compensation method includes: sampling pixel values of an image to be displayed on a display screen to obtain target sampling data; transmitting the target sampling data; receiving pixel compensation data, wherein the pixel compensation data is determined according to an aging duration of the display screen which is determined based on the target sampling data; and compensating for the pixel values of the image to be displayed on the display screen based on the pixel compensation data. The pixel compensation method includes: receiving target sampling data obtained by sampling pixel values of an image to be displayed on a display screen; determining an aging duration of the display screen based on the target sampling data; determining pixel compensation data based on the aging duration; and transmitting the pixel compensation data.Type: ApplicationFiled: May 31, 2019Publication date: May 14, 2020Inventors: Mingi Chu, Fei Yang, Yi Chen, Yu Wang, Lirong Wang
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Patent number: 10629126Abstract: The disclosure discloses a method for driving a pixel circuit, a drive device and a display device. The method includes: receiving grayscale data to be displayed; determining a voltage compensation value, which corresponds to theoretical drive voltage corresponding to the grayscale data to be displayed, according to a pre-acquired correspondence relationship between theoretical drive voltage corresponding to respective grayscale data, and corresponding voltage compensation values; wherein the voltage compensation value is a voltage drop caused by a detection transistor and a drive transistor in the pixel circuit; and compensating the theoretical drive voltage corresponding to the grayscale data to be displayed with the determined voltage compensation value, and then driving a light-emitting diode in the pixel circuit to emit light.Type: GrantFiled: July 24, 2018Date of Patent: April 21, 2020Assignee: BOE Technology Group Co., Ltd.Inventors: Lirong Wang, Quanhu Li, Fei Yang, Danna Song, Mingi Chu, Song Meng, Yu Wang, Yi Chen, Zhongyuan Wu
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Patent number: 10622424Abstract: A pixel circuit and a driving method thereof, and a display panel is provided. The pixel circuit includes a first selection circuit, a first driving circuit, a first capacitor, a first sensing circuit, a first organic light emitting element, a second capacitor and a capacitor control circuit. The first selection circuit and the first capacitor are electrically connected, and are configured to control the first driving circuit; the first sensing circuit is electrically connected to the first driving circuit and the first organic light emitting element and is configured to sense the first driving circuit or the first organic light emitting element; and the capacitor control circuit is configured to allow the first capacitor and the second capacitor to be connected in parallel or to be disconnected.Type: GrantFiled: November 24, 2017Date of Patent: April 14, 2020Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Yi-Cheng Lin, Quanhu Li, Yu Wang, Cuili Gai, Mingi Chu, Chien Pang Huang
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Publication number: 20200098306Abstract: The present disclosure relates to the field of display technologies, and provides a pixel circuit including: a display pixel driving circuit, a sensing line, and at least one non-display pixel driving circuit. The display pixel driving circuit is configured to drive a display sub-pixel, and includes a first driving transistor. The sensing line is coupled to an output end of the first driving transistor, and configured to sense a current of an output end of the first driving transistor; each of the non-display pixel driving circuits is configured to drive one non-display sub-pixel, and the non-display pixel driving circuit includes a second driving transistor. An output end of the second driving transistor is coupled to the sensing line to input a compensation current to the sensing line.Type: ApplicationFiled: May 10, 2019Publication date: March 26, 2020Inventors: Mingi CHU, Zhongyuan WU
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Publication number: 20200035159Abstract: Embodiments of the present disclosure provide a driving method for a pixel circuit. The pixel circuit includes a light emitting device and a drive transistor. The method includes: compensating the drive transistor in a first compensation manner including an internal voltage compensation during an operation period of the light emitting device; and compensating the drive transistor in a second compensation manner including the internal voltage compensation and an external voltage compensation during a non-operation period of the light emitting device.Type: ApplicationFiled: December 15, 2017Publication date: January 30, 2020Applicants: BOE TECHNOLOGY GROUP CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Yi-Cheng LIN, Guang YAN, Quanhu LI, Mingi CHU
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Publication number: 20190385568Abstract: The present disclosure discloses an electroluminescent display screen and brightness uniformity compensation method and system thereof, wherein the method comprises: performing test modeling based on a correspondence between an aging rule of an electroluminescent diode in the display screen and an aging rule of a thin film transistor (TFT) in the display screen to acquire a brightness uniformity compensation model; acquiring a first compensation parameter and a second compensation parameter required for compensating the TFT, and acquiring a current brightness ratio of the electroluminescent diode through invoking the brightness uniformity compensation model based on the compensation parameters; performing brightness uniformity compensation on the display screen based on the acquired current brightness ratio of the electroluminescent diode.Type: ApplicationFiled: September 20, 2017Publication date: December 19, 2019Applicant: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Danna SONG, Song MENG, Mingi CHU
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Publication number: 20190237009Abstract: A color complementation method for a WOLED display device includes: determining at least two target output brightnesses; measuring and adjusting the WOLED display device by using the at least two target output brightnesses, respectively, to obtain data to be used; wherein the measuring and adjusting includes: allowing an output brightnesses of the WOLED display device to be same as each of the target output brightnesses, and adjusting output brightnesses of sub-pixels and obtaining the output brightnesses of the sub-pixels at a preset chromaticity coordinate as color complementation brightnesses of the sub-pixels; generating, according to the data to be used, correlations between the output brightnesses of the WOLED display device and the color complementation brightnesses of the sub-pixels; according to the correlations, performing color complementation of the WOLED display device.Type: ApplicationFiled: June 27, 2018Publication date: August 1, 2019Inventor: Mingi CHU
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Publication number: 20190206326Abstract: The disclosure discloses a method for driving a pixel circuit, a drive device and a display device. The method includes: receiving grayscale data to be displayed; determining a voltage compensation value, which corresponds to theoretical drive voltage corresponding to the grayscale data to be displayed, according to a pre-acquired correspondence relationship between theoretical drive voltage corresponding to respective grayscale data, and corresponding voltage compensation values; wherein the voltage compensation value is a voltage drop caused by a detection transistor and a drive transistor in the pixel circuit; and compensating the theoretical drive voltage corresponding to the grayscale data to be displayed with the determined voltage compensation value, and then driving a light-emitting diode in the pixel circuit to emit light.Type: ApplicationFiled: July 24, 2018Publication date: July 4, 2019Inventors: Lirong Wang, Quanhu Li, Fei Yang, Danna Song, Mingi Chu, Song Meng, Yu Wang, Yi Chen, Zhongyuan Wu
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Publication number: 20190035334Abstract: A display panel, a display device and a compensating method are disclosed. The display panel includes: a plurality of sub-pixels arranged in rows and columns, each of the sub-pixels includes a pixel circuit; a plurality of sensing driving lines respectively connected with pixel circuits of the plurality of sub-pixels; and a sensing driver connected with the plurality of sensing driving lines. The pixel circuit includes a light emitting element, the sensing driver is configured to sense electrical parameters of light emitting elements of the pixel circuits of the plurality of sub-pixels through the plurality of sensing driving lines, and the sensing driver is configured to generate compensation signals according to the electrical parameters, and transmit the compensation signals to the pixel circuits of the plurality of sub-pixels through the plurality of sensing driving lines.Type: ApplicationFiled: December 4, 2017Publication date: January 31, 2019Inventors: Yi-Cheng LIN, Quanhu LI, Cuili GAI, Yu WANG, Mingi CHU, Chien Pang HUANG