Patents by Inventor Mei-Sheng Ma
Mei-Sheng 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: 10878744Abstract: A pixel driving circuit utilizing a transistor having two gate ends as the driving unit for pixels of a display panel to provide a stable driving current to compensate for the variation of threshold voltages of transistors in different pixels and to improve the uniformity of the brightness of the display panel.Type: GrantFiled: November 14, 2019Date of Patent: December 29, 2020Assignee: AU OPTRONICS CORPORATIONInventors: Mao-Hsun Cheng, Cheng-Han Huang, Mei-Sheng Ma, Yi-Chiung Chen, Hsiang-Sheng Chang, Po-Jung Wu, Yung-Chih Chen, Ching-Sheng Cheng
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Publication number: 20200226974Abstract: A pixel driving circuit includes a driving unit receiving a first control signal via a first control end, and the driving unit is biased according to the first control signal to provide a driving current to a light emitting element. One end of a capacitor is connected to a second control end of the driving unit, and the other end of the capacitor is connected to a first end or a second end of the driving unit. A compensation unit receives a second control signal via a first control end, and the compensation unit is biased according to the second control signal. A first switch unit receives a third control signal via a control end, and thereby the first switch unit is turned on. A second switch unit receives a fourth control signal via a control end, and thereby the second switch unit is turned on.Type: ApplicationFiled: November 14, 2019Publication date: July 16, 2020Inventors: Mao-Hsun Cheng, Cheng-Han Huang, Mei-Sheng Ma, Yi-Chiung Chen, Hsiang-Sheng Chang, Po-Jung Wu, Yung-Chih Chen, Ching-Sheng Cheng
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Patent number: 9898152Abstract: A capacitive touch panel and a display device using the capacitive touch panel are provided. The capacitive touch panel includes a first electrode layer, a second electrode layer, and a dielectric layer disposed between two layers. The first electrode layer has a plurality of first A electrode strings and first B electrode strings extended along a first direction. The first A electrode string and the first B electrode string respectively has a plurality of first direction electrodes. The second electrode layer has a plurality of second direction electrodes connected in series along a second direction. The first A and B electrode strings are disconnected in the first electrode layer while they are simultaneously detected for presence of signal variation.Type: GrantFiled: September 21, 2015Date of Patent: February 20, 2018Assignee: AU OPTRONICS CORPORATIONInventors: Tun-Chun Yang, Seok-Lyul Lee, Chih-Jen Hu, Kuo-Hsing Cheng, Yao-Jen Hsieh, Mei-Sheng Ma, Hsin-Hung Lee, Yuan-Chun Wu, Chun-Huai Li
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Publication number: 20170017342Abstract: A touch panel and a manufacturing method thereof are provided. The touch panel has a double-layered sensing pad structure or a single-layered sensing pad structure. In the double-layered sensing pad structure, the sensing pads in each layer have corresponding dummy sensing pads in the other layer for compensating the difference of transmittance. In the single-layered sensing pad structure, the sensing pads are coplanar so that the problem of color shift can be overcome and the visual effect of the touch panel can be improved.Type: ApplicationFiled: September 28, 2016Publication date: January 19, 2017Applicant: Au Optronics CorporationInventors: Yuan-Chun Wu, Hsin-Hung Lee, Mei-Sheng Ma, Tun-Chun Yang, Seok-Lyul Lee, Yao-Jen Hsieh
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Publication number: 20160011697Abstract: A capacitive touch panel and a display device using the capacitive touch panel are provided. The capacitive touch panel includes a first electrode layer, a second electrode layer, and a dielectric layer disposed between two layers. The first electrode layer has a plurality of first A electrode strings and first B electrode strings extended along a first direction. The first A electrode string and the first B electrode string respectively has a plurality of first direction electrodes. The second electrode layer has a plurality of second direction electrodes connected in series along a second direction. The first A and B electrode strings are disconnected in the first electrode layer while they are simultaneously detected for presence of signal variation.Type: ApplicationFiled: September 21, 2015Publication date: January 14, 2016Inventors: Tun-Chun Yang, Seok-Lyul Lee, Chih-Jen Hu, Kuo-Hsing Cheng, Yao-Jen Hsieh, Mei-Sheng Ma, Hsin-Hung Lee, Yuan-Chun Wu, Chun-Huai Li
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Patent number: 9166582Abstract: A capacitive touch panel and a display device using the capacitive touch panel are provided. The capacitive touch panel includes a first electrode layer, a second electrode layer, and a dielectric layer disposed between two layers. The first electrode layer has a plurality of first A electrode strings and first B electrode strings extended along a first direction. The first A electrode string and the first B electrode string respectively has a plurality of first direction electrodes. The second electrode layer has a plurality of second direction electrodes connected in series along a second direction. The first A and B electrode strings are disconnected in the first electrode layer while they are simultaneously detected for presence of signal variation.Type: GrantFiled: September 29, 2008Date of Patent: October 20, 2015Assignee: AU OPTRONICS CORPORATIONInventors: Tun-Chun Yang, Seok-Lyul Lee, Chih-Jen Hu, Kuo-Hsing Cheng, Yao-Jen Hsieh, Mei-Sheng Ma, Hsin-Hung Lee, Yuan-Chun Wu, Chun-Huai Li
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Patent number: 9058076Abstract: The present invention provides a touch panel used in a display device. The touch panel of the present invention is configured to display images and to receive as well as to process instructions inputted by user's touches. A display substrate partially overlaps with an image driving circuit substrate of the touch panel. A touch sensing circuit is disposed on the inner side of the display substrate. A touch sensing processor is disposed on the inner side of a touch sensing circuit and is also electrically coupled to the touch sensing circuit. Consequently, the thickness of the touch panel as well as the overall thickness of the display device is reduced.Type: GrantFiled: June 27, 2014Date of Patent: June 16, 2015Assignee: AU OPTRONICS CORPORATIONInventors: Martinus Tony Wijaya, Mei-Sheng Ma, Yuan-Chun Wu, Hsin-Hung Lee, Kuo-Hsing Cheng, Han Ping Kuo
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Patent number: 8970473Abstract: A bistable display and a method of driving a panel thereof are provided. The bistable display includes a bistable display panel and a driving device. The bistable display panel at least has a first pixel and a second pixel, and these two pixels share a data line. The driving device is coupled to the bistable display panel, and used for providing different source driving waveforms to the first pixel and the second pixel respectively.Type: GrantFiled: October 7, 2011Date of Patent: March 3, 2015Assignee: Au Optronics CorporationInventors: Kuo-Cheng Hsu, Kuan-Yi Lien, Pei-Yu Chen, Mei-Sheng Ma, Kuo-Hsing Cheng
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Publication number: 20140307185Abstract: The present invention provides a touch panel used in a display device. The touch panel of the present invention is configured to display images and to receive as well as to process instructions inputted by user's touches. A display substrate partially overlaps with an image driving circuit substrate of the touch panel. A touch sensing circuit is disposed on the inner side of the display substrate. A touch sensing processor is disposed on the inner side of a touch sensing circuit and is also electrically coupled to the touch sensing circuit. Consequently, the thickness of the touch panel as well as the overall thickness of the display device is reduced.Type: ApplicationFiled: June 27, 2014Publication date: October 16, 2014Inventors: Martinus Tony Wijaya, Mei-Sheng Ma, Yuan-Chun Wu, Hsin-Hung Lee, Kuo-Hsing Cheng, Han Ping Kuo
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Patent number: 8803815Abstract: The present invention provides a touch panel used in a display device. The touch panel of the present invention is configured to display images and to receive as well as to process instructions inputted by user's touches. A display substrate partially overlaps with an image driving circuit substrate of the touch panel. A touch sensing circuit is disposed on the inner side of the display substrate. A touch sensing processor is disposed on the inner side of a touch sensing circuit and is also electrically coupled to the touch sensing circuit. Consequently, the thickness of the touch panel as well as the overall thickness of the display device is reduced.Type: GrantFiled: May 6, 2009Date of Patent: August 12, 2014Assignee: AU Optronics CorporationInventors: Martinus Tony Wijaya, Mei-Sheng Ma, Yuan-Chun Wu, Hsin-Hung Lee, Kuo-Hsing Cheng, Han Ping Kuo
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Publication number: 20140211109Abstract: A touch panel and a manufacturing method thereof are provided. The touch panel has a double-layered sensing pad structure or a single-layered sensing pad structure. In the double-layered sensing pad structure, the sensing pads in each layer have corresponding dummy sensing pads in the other layer for compensating the difference of transmittance. In the single-layered sensing pad structure, the sensing pads are coplanar so that the problem of color shift can be overcome and the visual effect of the touch panel can be improved.Type: ApplicationFiled: March 28, 2014Publication date: July 31, 2014Applicant: Au Optronics CorporationInventors: Yuan-Chun Wu, Hsin-Hung Lee, Mei-Sheng Ma, Tun-Chun Yang, Seok-Lyul Lee, Yao-Jen Hsieh
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Patent number: 8581875Abstract: A touch panel including a substrate, at least one first sensing series and at least one second sensing series is provided. The first sensing series is disposed on the substrate and extends along a first direction. The first sensing series includes several first sensing pads and at least one first bridge line. The first bridge line connects two adjacent first sensing pads, and a material of the first bridge line differs from a material of the first sensing pads. The second sensing series is disposed on the substrate and extends along a second direction. The first direction is different from the second direction. The second sensing series includes several second sensing pads and at least one second bridge line. The second bridge line connects two adjacent second sensing pads.Type: GrantFiled: January 11, 2013Date of Patent: November 12, 2013Assignee: Au Optronics CorporationInventors: Yuan-Chun Wu, Hsin-Hung Lee, Mei-Sheng Ma, Kuo-Hsing Cheng, Yu-Feng Chien
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Patent number: 8384645Abstract: A method for driving an LCD panel and an LCD using the same are provided. The method includes following steps. Firstly, a number of scan signals are provided sequentially, and an enabling time of the scan signals excluding the last scan signal is adjusted according to a compensation time, so as to unfix the enabling time of these scan signals. Next, the scan signals having the unfixed enabling time are sequentially provided to an LCD panel, so as to turn on a number of row pixels of the LCD panel one by one. Thereby, the entire brightness of the LCD can be uniformed by applying the method disclosed in the present invention.Type: GrantFiled: May 29, 2008Date of Patent: February 26, 2013Assignee: Au Optronics CorporationInventors: Mei-Sheng Ma, Chien-Hung Chen, Chun-Huai Li
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Patent number: 8334848Abstract: A resistance type touch display panel includes a first substrate and a second substrate disposed above the first substrate. The first substrate includes many scan lines and data lines defining many pixel regions on the first substrate, many pixel units and touch units. Each pixel unit is located in one of the pixel regions and electrically connected with one of the scan lines and data lines respectively. Each touch unit is electrically connected with one of the scan lines and data lines and distributed in at least two pixel regions. The second substrate includes many spacers, many touch protrusions and a common electrode covering the spacers and the touch protrusions. Each touch protrusion is located above one of the touch units and a gap is formed between the common electrode disposed on each touch protrusion and the touch unit.Type: GrantFiled: May 30, 2008Date of Patent: December 18, 2012Assignee: Au Optronics CorporationInventors: Mei-Sheng Ma, Hsin-Hung Lee, Yuan-Chun Wu, Kuo-Hsing Cheng
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Publication number: 20120249508Abstract: A bistable display and a method of driving a panel thereof are provided. The bistable display includes a bistable display panel and a driving device. The bistable display panel at least has a first pixel and a second pixel, and these two pixels share a data line. The driving device is coupled to the bistable display panel, and used for providing different source driving waveforms to the first pixel and the second pixel respectively.Type: ApplicationFiled: October 7, 2011Publication date: October 4, 2012Applicant: AU OPTRONICS CORPORATIONInventors: Kuo-Cheng Hsu, Kuan-Yi Lien, Pei-Yu Chen, Mei-Sheng Ma, Kuo-Hsing Cheng
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Patent number: 8274493Abstract: A touch panel and a portable electronic device thereof are provided. The present invention can accurately determine a position touched by a user on the touch panel by judging whether or not a potential voltage value between a reference capacitor and a sensing capacitor of a pixel having a sensing area being changed, or to determine whether a switch of a pixel having the sensing area being conducted.Type: GrantFiled: February 24, 2012Date of Patent: September 25, 2012Assignee: Au Optronics CorporationInventors: Mei-Sheng Ma, Hsin-Hung Lee, Yao-Jen Hsieh, Yung-Hsien Ho, Heng-Sheng Chou, Chun-Huai Li, Meng-Hsiang Chang
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Patent number: 8237877Abstract: A touch panel includes two substrates, a sealant positioned between the substrates, a liquid crystal layer disposed between the substrates and enclosed by the sealant, and a first and a second sensing zones disposed on the substrate, wherein the first sensing zone is enclosed by the second sensing zone, and the second sensing zone is enclosed by the sealant. The first and second sensing zones have at least a first sensor and at least a second sensor respectively. The first sensor has a first sensor gap, and the second sensor has a second sensor gap smaller than the first sensor gap.Type: GrantFiled: November 10, 2008Date of Patent: August 7, 2012Assignee: AU Optronics Corp.Inventors: Hsin-Hung Lee, Mei-Sheng Ma, Yuan-Chun Wu, Kuo-Hsing Cheng, Jia-Lang Hsu, Pei-Yu Chen, Yao-Jen Hsieh
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Publication number: 20120154320Abstract: A touch panel and a portable electronic device thereof are provided. The present invention can accurately determine a position touched by a user on the touch panel by judging whether or not a potential voltage value between a reference capacitor and a sensing capacitor of a pixel having a sensing area being changed, or to determine whether a switch of a pixel having the sensing area being conducted.Type: ApplicationFiled: February 24, 2012Publication date: June 21, 2012Applicant: AU OPTRONICS CORPORATIONInventors: Mei-Sheng Ma, Hsin-Hung Lee, Yao-Jen Hsieh, Yung-Hsien Ho, Heng-Sheng Chou, Chun-Huai Li, Meng-Hsiang Chang
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Patent number: 8199120Abstract: A repairable touch control device includes a substrate, a sensor circuit, and at least a repairing wiring. The substrate includes a sensor region, and a peripheral region. The sensor circuit, which includes sensor wirings, is disposed in the sensor region. The repairing wiring is disposed in the peripheral region for repairing the sensor wirings.Type: GrantFiled: December 22, 2008Date of Patent: June 12, 2012Assignee: AU Optronics Corp.Inventors: Yuan-Chun Wu, Hsin-Hung Lee, Mei-Sheng Ma, Kuo-Hsing Cheng, Yao-Jen Hsieh
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Patent number: 8184105Abstract: A touch panel including a substrate, a plurality of first sensing series, and a plurality of second sensing series is provided. The first sensing series and the second sensing series are disposed on the substrate. The first sensing series extend along a first direction and are electrically insulated from each other. Each of the first sensing series includes a plurality of first sensing pads and a plurality of first bridge portions connected between the first sensing pads. The second sensing series extend along a second direction and are electrically insulated from each other. Each of the second sensing series includes a plurality of second sensing pads and a plurality of second bridge portions connected between the second sensing pads. Each of the first bridge portions and one of the second bridge portions are intersected, and at least one of the second bridge portions has at least one electrostatic discharge tip.Type: GrantFiled: December 2, 2009Date of Patent: May 22, 2012Assignee: Au Optronics CorporationInventors: Yu-Chuan Lin, Sheng-Fa Liu, Jing-Tin Kuo, Hsin-Hung Lee, Wei-Jen Chang, Pei-Yu Chen, Yu-Mei Chiu, Mei-Sheng Ma, Kuo-Hsing Cheng