Patents by Inventor Conghua MA
Conghua MA 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: 11961949Abstract: Provided are a light emitting device and manufacturing method thereof, a backlight module, a display panel and a display device. The manufacturing method includes: providing a substrate; forming a circuit layer on a side of the substrate; providing at least one switching element and at least one light emitting element; and electrically connecting the switching element and the light emitting element to the circuit layer. The circuit layer includes a first power signal line, a second power signal line, and a pulse width modulation signal line; the switching element includes a control terminal, a first terminal and a second terminal; the light emitting element is electrically connected between the first terminal and the first power signal line, or the light emitting element is electrically connected between the second terminal and the second power signal line.Type: GrantFiled: September 3, 2020Date of Patent: April 16, 2024Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.Inventors: Lihua Wang, Xiaoping Sun, Conghua Ma, Qiang Dong
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Patent number: 11411151Abstract: A light emitting panel and a display device are provided. The light emitting panel includes a carrier substrate, and multiple connection electrodes, multiple first electrode leads and multiple second electrode leads that are arranged on the carrier substrate. Each connection electrode includes a first sub-connection electrode and a second sub-connection electrode isolated from each other. The connection electrodes are divided into a first connection electrode group to an N-th connection electrode group. An i-th connection electrode group includes connection electrodes. N is an integer greater than or equal to 2, and i is a positive integer less than or equal to N. First sub-connection electrodes in the i-th connection electrode group are electrically connected with a same first electrode lead, and second sub-connection electrodes in the i-th connection electrode group are respectively connected with different second electrode leads.Type: GrantFiled: November 9, 2020Date of Patent: August 9, 2022Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Xiaoping Sun, Lihua Wang, Conghua Ma, Liwen Lu
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Patent number: 11360619Abstract: A touch panel, a fabricating method, a repair method, and a touch device are provided. The touch panel includes a substrate, and a touch electrode layer, the repair lines, and repair conductive portions, on the substrate. The touch electrode layer includes a touch electrode array. The repair lines are outside the touch electrode array. In a direction perpendicular to the touch panel, at least part of touch electrodes at edges of the touch electrode array overlaps the repair conductive portions, and/or the repair conductive portions overlap at least part of repair lines.Type: GrantFiled: November 15, 2019Date of Patent: June 14, 2022Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.Inventors: Conghua Ma, Qijun Yao
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Patent number: 11348542Abstract: Provided is a driving method for a display device. The driving method includes: obtaining, by the driving chip, a theoretical brightness value of the light-emitting diode in each of the plurality of light-exiting sub-areas based on an image to be displayed on the display panel; obtaining an actual brightness look-up table, searching the actual brightness look-up table for an actual brightness value closest to the theoretical brightness value, and setting the actual brightness value closest to the theoretical brightness value as a first brightness value; and generating a first pulse signal based on the first brightness value and outputting the first pulse signal to the switch in each of the plurality of light-exiting sub-areas, in such a manner that the switch controls, under driving of the first pulse signal, the light-emitting diode to emit light under an action of a first power supply signal and a second power supply signal.Type: GrantFiled: July 30, 2020Date of Patent: May 31, 2022Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Conghua Ma, Lihua Wang, Xiaoping Sun, Qiang Dong
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Patent number: 11335249Abstract: A light-emitting panel and a brightness adjustment method, and a display device are provided. The method includes providing the light-emitting panel including a substrate, a plurality of light-emitting units, a control circuit, and a plurality of signal lines. The control circuit includes a data signal input terminal, a data storage unit, and a plurality of first signal terminals. The data storage unit is configured to store a first voltage signal and a first pulse width modulation signal corresponding to a different grayscale value. Each signal line connects a light-emitting unit with a first signal terminal. The method also includes obtaining a to-be-displayed screen, and determining each grayscale value of a corresponding light-emitting unit of the plurality of light-emitting units. Further, the method includes according to different grayscale values, calling the first pulse width modulation signal and the first voltage signal corresponding to each grayscale value in the data storage unit.Type: GrantFiled: April 20, 2021Date of Patent: May 17, 2022Assignee: Xiamen Tianma Micro-Electronics Co., Ltd.Inventors: Conghua Ma, Xiaoping Sun, Lihua Wang, Qiang Dong, Yue Yang, Qiongqin Mao, Juan Wu, Jiayin Tang
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Patent number: 11315502Abstract: A backlight drive method, a backlight drive device, a backlight source system, and a display device are provided in the present disclosure. The backlight drive method is used to drive a light-emitting region of a backlight source of the display device. Driving the light-emitting region of the backlight source includes acquiring actual ambient brightness of an ambient where the display device is located. Driving the light-emitting region of the backlight source further includes determining a target backlight brightness range of light exited from the light-emitting region with reference to the actual ambient brightness, where the target backlight brightness range is within an intrinsic brightness range of the light-emitting region. Driving the light-emitting region of the backlight source further includes matching the target backlight brightness range to a plurality of gray levels preset in the light-emitting region.Type: GrantFiled: July 20, 2020Date of Patent: April 26, 2022Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.Inventors: Xiongping Li, Xiaoping Sun, Lihua Wang, Conghua Ma, Qiang Dong
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Publication number: 20220068193Abstract: Light-emitting panel, driving method, fabricating method, and display device are provided. The light-emitting panel includes a plurality of light-emitting units arranged in an array. Each light-emitting unit includes a light-emission control module and at least one light-emitting element. The at least one light-emitting element is electrically connected to the light-emission control module. The light-emitting panel also includes a plurality of data lines arranged in a first direction. Each data line is electrically connected to light-emission control modules of light-emitting units that are arranged in a second direction. The second direction intersects the first direction. The light-emitting panel also includes a plurality of scan lines arranged in the second direction. Each scan line of the plurality of scan lines is electrically connected to light-emission control modules of light-emitting units that are arranged in the first direction.Type: ApplicationFiled: November 24, 2020Publication date: March 3, 2022Inventors: Lihua WANG, Xiaoping SUN, Conghua MA, Qiang DONG
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Publication number: 20220068175Abstract: A light-emitting panel and a display device are provided. The light-emitting panel includes a plurality of light-emitting components arranged in an array, a plurality of signal calculation modules, and a reference-signal generation module. A light-emitting component includes a light-emitting module and a first switch module. The light-emitting module and the first switch module are connected in series between a first power terminal and a second power terminal. A control terminal of the first switch module is connected to a signal calculation module, and the signal calculation module is connected to the reference-signal generation module. The reference-signal generation module is configured to generate a reference signal. The signal calculation module is configured to receive an original data signal and the reference signal, and generate a first data signal. The signal calculation module is further configured to generate a pulse width modulation signal, and to control the light-emitting module to emit light.Type: ApplicationFiled: November 24, 2020Publication date: March 3, 2022Inventors: Qiang DONG, Lihua WANG, Xiaoping SUN, Conghua MA
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Patent number: 11263938Abstract: A light-emitting panel and a display device are provided. The light-emitting panel includes a plurality of light-emitting components arranged in an array, a plurality of signal calculation modules, and a reference-signal generation module. A light-emitting component includes a light-emitting module and a first switch module. The light-emitting module and the first switch module are connected in series between a first power terminal and a second power terminal. A control terminal of the first switch module is connected to a signal calculation module, and the signal calculation module is connected to the reference-signal generation module. The reference-signal generation module is configured to generate a reference signal. The signal calculation module is configured to receive an original data signal and the reference signal, and generate a first data signal. The signal calculation module is further configured to generate a pulse width modulation signal, and to control the light-emitting module to emit light.Type: GrantFiled: November 24, 2020Date of Patent: March 1, 2022Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.Inventors: Qiang Dong, Lihua Wang, Xiaoping Sun, Conghua Ma
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Patent number: 11244603Abstract: Light-emitting panel, driving method, fabricating method, and display device are provided. The light-emitting panel includes a plurality of light-emitting units arranged in an array. Each light-emitting unit includes a light-emission control module and at least one light-emitting element. The at least one light-emitting element is electrically connected to the light-emission control module. The light-emitting panel also includes a plurality of data lines arranged in a first direction. Each data line is electrically connected to light-emission control modules of light-emitting units that are arranged in a second direction. The second direction intersects the first direction. The light-emitting panel also includes a plurality of scan lines arranged in the second direction. Each scan line of the plurality of scan lines is electrically connected to light-emission control modules of light-emitting units that are arranged in the first direction.Type: GrantFiled: November 24, 2020Date of Patent: February 8, 2022Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.Inventors: Lihua Wang, Xiaoping Sun, Conghua Ma, Qiang Dong
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Publication number: 20210376209Abstract: Provided are a light emitting device and manufacturing method thereof, a backlight module, a display panel and a display device. The manufacturing method includes: providing a substrate; forming a circuit layer on a side of the substrate; providing at least one switching element and at least one light emitting element; and electrically connecting the switching element and the light emitting element to the circuit layer. The circuit layer includes a first power signal line, a second power signal line, and a pulse width modulation signal line; the switching element includes a control terminal, a first terminal and a second terminal; the light emitting element is electrically connected between the first terminal and the first power signal line, or the light emitting element is electrically connected between the second terminal and the second power signal line.Type: ApplicationFiled: September 3, 2020Publication date: December 2, 2021Inventors: Lihua Wang, Xiaoping Sun, Conghua Ma, Qiang Dong
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Publication number: 20210375219Abstract: Provided is a driving method for a display device. The driving method includes: obtaining, by the driving chip, a theoretical brightness value of the light-emitting diode in each of the plurality of light-exiting sub-areas based on an image to be displayed on the display panel; obtaining an actual brightness look-up table, searching the actual brightness look-up table for an actual brightness value closest to the theoretical brightness value, and setting the actual brightness value closest to the theoretical brightness value as a first brightness value; and generating a first pulse signal based on the first brightness value and outputting the first pulse signal to the switch in each of the plurality of light-exiting sub-areas, in such a manner that the switch controls, under driving of the first pulse signal, the light-emitting diode to emit light under an action of a first power supply signal and a second power supply signal.Type: ApplicationFiled: July 30, 2020Publication date: December 2, 2021Inventors: Conghua MA, Lihua WANG, Xiaoping SUN, Qiang DONG
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Publication number: 20210375218Abstract: A backlight drive method, a backlight drive device, a backlight source system, and a display device are provided in the present disclosure. The backlight drive method is used to drive a light-emitting region of a backlight source of the display device. Driving the light-emitting region of the backlight source includes acquiring actual ambient brightness of an ambient where the display device is located. Driving the light-emitting region of the backlight source further includes determining a target backlight brightness range of light exited from the light-emitting region with reference to the actual ambient brightness, where the target backlight brightness range is within an intrinsic brightness range of the light-emitting region. Driving the light-emitting region of the backlight source further includes matching the target backlight brightness range to a plurality of gray levels preset in the light-emitting region.Type: ApplicationFiled: July 20, 2020Publication date: December 2, 2021Inventors: Xiongping LI, Xiaoping SUN, Lihua WANG, Conghua MA, Qiang DONG
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Patent number: 11126226Abstract: A display panel and a display apparatus. The display panel includes at least one first region, at least two second regions, and a detection layer. The first region and the second region are adjacently arranged along a first direction, and the first region is located between adjacent second regions. The first region is bent, and the second region is not bent, in a case that the display panel is bent. The detection layer includes at least one detection unit, the detection unit is located in the second region, the detection unit does not overlap with the first region, and the detection unit is configured to detect bending of the first region. The display panel has high detection accuracy and strong detection capability.Type: GrantFiled: July 2, 2019Date of Patent: September 21, 2021Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.Inventors: Feng Lu, Liang Liu, Conghua Ma, Qijun Yao
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Publication number: 20210057624Abstract: A light emitting panel and a display device are provided. The light emitting panel includes a carrier substrate, and multiple connection electrodes, multiple first electrode leads and multiple second electrode leads that are arranged on the carrier substrate. Each connection electrode includes a first sub-connection electrode and a second sub-connection electrode isolated from each other. The connection electrodes are divided into a first connection electrode group to an N-th connection electrode group. An i-th connection electrode group includes connection electrodes. N is an integer greater than or equal to 2, and i is a positive integer less than or equal to N. First sub-connection electrodes in the i-th connection electrode group are electrically connected with a same first electrode lead, and second sub-connection electrodes in the i-th connection electrode group are respectively connected with different second electrode leads.Type: ApplicationFiled: November 9, 2020Publication date: February 25, 2021Inventors: Xiaoping SUN, Lihua WANG, Conghua MA, Liwen LU
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Patent number: 10817095Abstract: An electronic device, a touch display panel and a touch display substrate are provided. The touch display substrate includes: a substrate; a common electrode layer disposed on the substrate, where the common electrode layer includes multiple touch display electrodes insulated from each other, and the touch display electrodes are arranged in an array; and multiple touch display wires insulated from each other, where the touch display wires and the touch display electrodes are arranged and connected electrically according to a one-to-one correspondence. Areas of at least two touch display electrodes increase gradually in a first direction, and the first direction is an extending direction of the touch display wire and extends from a contact point between the touch display wire and the touch display electrode to an edge of the substrate.Type: GrantFiled: October 22, 2019Date of Patent: October 27, 2020Assignees: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD., TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Gujun Li, Yungang Sun, Lingxiao Du, Conghua Ma
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Patent number: 10768739Abstract: A touch panel is disclosed. The panel has a substrate having a touch region with a plurality of touch areas, a touch position detection apparatus, at least one pressure sensor group and a processor. The at least one pressure sensor group is disposed on the substrate. The pressure sensor group includes a first-type pressure sensor and a second-type pressure sensor. The first-type pressure sensor is located on a first side of the touch region and the second-type pressure sensor is located on a second side opposite to the first side of the touch region so that the first-type pressure sensor and the second-type pressure sensor of the same pressure sensor group are symmetric about the centerline of the touch panel. Each of the plurality of touch areas is associated with one of the at least one pressure sensor group.Type: GrantFiled: October 17, 2017Date of Patent: September 8, 2020Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Feng Lu, Qijun Yao, Conghua Ma, Shaolong Ma, Liang Liu
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Publication number: 20200272278Abstract: A touch panel, a fabricating method, a repair method, and a touch device are provided. The touch panel includes a substrate, and a touch electrode layer, the repair lines, and repair conductive portions, on the substrate. The touch electrode layer includes a touch electrode array. The repair lines are outside the touch electrode array. In a direction perpendicular to the touch panel, at least part of touch electrodes at edges of the touch electrode array overlaps the repair conductive portions, and/or the repair conductive portions overlap at least part of repair lines.Type: ApplicationFiled: November 15, 2019Publication date: August 27, 2020Inventors: Conghua MA, Qijun YAO
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Publication number: 20200209922Abstract: A display panel and a display apparatus. The display panel includes at least one first region, at least two second regions, and a detection layer. The first region and the second region are adjacently arranged along a first direction, and the first region is located between adjacent second regions. The first region is bent, and the second region is not bent, in a case that the display panel is bent. The detection layer includes at least one detection unit, the detection unit is located in the second region, the detection unit does not overlap with the first region, and the detection unit is configured to detect bending of the first region. The display panel has high detection accuracy and strong detection capability.Type: ApplicationFiled: July 2, 2019Publication date: July 2, 2020Inventors: Feng LU, Liang Liu, Conghua Ma, Qijun Yao
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Patent number: 10679535Abstract: The present disclosure provides an array substrate, a testing method, a display panel and a display apparatus. The array substrate includes: multiple gate wires and data wires intersecting with each other to divide multiple sub-pixel regions, where the sub-pixels corresponding to each of the data wires form a column of the sub-pixels, and M neighboring columns of the sub-pixels form a sub-pixel group; multiple switch units, where a first end of each of the switch units is electrically connected to one of the data wires; and multiple testing ends, each of which is electrically connected to second ends of the switch units. In such configuration, at least two switch units are electrically connected to the data wires corresponding to ith columns of the sub-pixels in at least two alternately arranged sub-pixel groups, respectively. Accordingly, impacts to voltage of common electrodes may be avoided and testing effect may be improved.Type: GrantFiled: October 12, 2018Date of Patent: June 9, 2020Assignees: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD., TIANMA MICRO-ELECTRONICS CO., LTD.Inventor: Conghua Ma