Patents by Inventor Ping-Yueh Cheng
Ping-Yueh Cheng 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: 11217145Abstract: The present invention is directed to driving methods for a color display device which can display high quality color states. The display device utilizes an electrophoretic fluid which comprises three types of pigment particles having different optical characteristics, and provides for displaying at a viewing surface not only the colors of the three types of particles but also the colors of binary mixtures thereof.Type: GrantFiled: June 19, 2020Date of Patent: January 4, 2022Assignee: E INK CALIFORNIA, LLCInventors: Craig Lin, Jo-Cheng Huang, Heng-Che Chen, Peter B. Laxton, Ming Wang, Ping-Yueh Cheng, HongMei Zang
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Patent number: 11004409Abstract: The present invention is directed to driving methods for a color display device which can display high quality color states. The display device utilizes an electrophoretic fluid which comprises three types of pigment particles having different optical characteristics.Type: GrantFiled: May 17, 2019Date of Patent: May 11, 2021Assignee: E INK CALIFORNIA, LLCInventors: Craig Lin, Jo-Cheng Huang, Heng-Che Chen, Peter B. Laxton, Ming Wang, Ping-Yueh Cheng, HongMei Zang
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Publication number: 20200320921Abstract: The present invention is directed to driving methods for a color display device which can display high quality color states. The display device utilizes an electrophoretic fluid which comprises three types of pigment particles having different optical characteristics, and provides for displaying at a viewing surface not only the colors of the three types of particles but also the colors of binary mixtures thereof.Type: ApplicationFiled: June 19, 2020Publication date: October 8, 2020Inventors: Craig Lin, Jo-Cheng Huang, Heng-Che Chen, Peter B. Laxton, Ming Wang, Ping-Yueh Cheng, HongMei Zang
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Patent number: 10726760Abstract: The present invention is directed to driving methods for a color display device which can display high quality color states. The display device utilizes an electrophoretic fluid which comprises three types of pigment particles having different optical characteristics, and provides for displaying at a viewing surface not only the colors of the three types of particles but also the colors of binary mixtures thereof.Type: GrantFiled: June 30, 2019Date of Patent: July 28, 2020Assignee: E INK CALIFORNIA, LLCInventors: Craig Lin, Jo-Cheng Huang, Heng-Che Chen, Peter B. Laxton, Ming Wang, Ping-Yueh Cheng, HongMei Zang
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Publication number: 20190325804Abstract: The present invention is directed to driving methods for a color display device which can display high quality color states. The display device utilizes an electrophoretic fluid which comprises three types of pigment particles having different optical characteristics, and provides for displaying at a viewing surface not only the colors of the three types of particles but also the colors of binary mixtures thereof.Type: ApplicationFiled: June 30, 2019Publication date: October 24, 2019Inventors: Craig Lin, Jo-Cheng Huang, Heng-Che Chen, Peter B. Laxton, Ming Wang, Ping-Yueh Cheng, HongMei Zang
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Publication number: 20190272792Abstract: The present invention is directed to driving methods for a color display device which can display high quality color states. The display device utilizes an electrophoretic fluid which comprises three types of pigment particles having different optical characteristics.Type: ApplicationFiled: May 17, 2019Publication date: September 5, 2019Inventors: Craig LIN, Jo-Cheng HUANG, Heng-Che CHEN, Peter B. LAXTON, Ming WANG, Ping-Yueh CHENG, HongMei ZANG
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Patent number: 10380931Abstract: The present invention is directed to driving methods for a color display device which can display high quality color states. The display device utilizes an electrophoretic fluid which comprises three types of pigment particles having different optical characteristics, and provides for displaying at a viewing surface not only the colors of the three types of particles but also the colors of binary mixtures thereof.Type: GrantFiled: April 25, 2017Date of Patent: August 13, 2019Assignee: E INK CALIFORNIA, LLCInventors: Craig Lin, Jo-Cheng Huang, Heng-Che Chen, Peter B. Laxton, Ming Wang, Ping-Yueh Cheng, HongMei Zang
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Patent number: 10339876Abstract: The present invention is directed to driving methods for a color display device which can display high quality color states. The display device utilizes an electrophoretic fluid which comprises three types of pigment particles having different optical characteristics.Type: GrantFiled: October 6, 2014Date of Patent: July 2, 2019Assignee: E INK CALIFORNIA, LLCInventors: Craig Lin, Jo-Cheng Huang, Heng-Che Chen, Peter Laxton, Ming Wang, Ping-Yueh Cheng, HongMei Zang
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Patent number: 10229641Abstract: A driving method of an electrophoretic display having at least one display particle is provided. The driving method includes the following steps. A first voltage difference is applied to a data line in a first period, in which the data line corresponds to one of the display particles. At least one particle restore period is inserted in the first period, and a second voltage difference is applied to the data line in the particle restore periods, in which the second voltage difference is different from the first voltage difference. With this method disclosed here, the maxima brightness, maxima darkness, contrast ratio, color saturation, bistability, and image updating time can be largely improved.Type: GrantFiled: December 3, 2015Date of Patent: March 12, 2019Assignee: E Ink Holdings Inc.Inventors: Bo-Ru Yang, Ping-Yueh Cheng, Chi-Mao Hung, Chun-An Wei, Yao-Jen Hsieh
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Publication number: 20170263176Abstract: The present invention is directed to driving methods for a color display device which can display high quality color states.Type: ApplicationFiled: April 25, 2017Publication date: September 14, 2017Inventors: Craig Lin, Jo-Cheng Huang, Heng-Che Chen, Peter B. Laxton, Ming Wang, Ping-Yueh Cheng, HongMei Zang
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Publication number: 20160093253Abstract: A driving method of an electrophoretic display having at least one display particle is provided. The driving method includes the following steps. A first voltage difference is applied to a data line in a first period, in which the data line corresponds to one of the display particles. At least one particle restore period is inserted in the first period, and a second voltage difference is applied to the data line in the particle restore periods, in which the second voltage difference is different from the first voltage difference. With this method disclosed here, the maxima brightness, maxima darkness, contrast ratio, color saturation, bistability, and image updating time can be largely improved.Type: ApplicationFiled: December 3, 2015Publication date: March 31, 2016Inventors: Bo-Ru Yang, Ping-Yueh Cheng, Chi-Mao Hung, Chun-An Wei, Yao-Jen Hsieh
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Patent number: 9082352Abstract: A driving method for an electro-phoretic display apparatus is disclosed. The method includes generating a common voltage by a common voltage generator held at a first voltage level before a polarity transfer, generating the common voltage held at a second voltage level when the polarity transfer starts during a first timing period, and generating the common voltage transfers held at a third voltage level during a second timing period after the first timing period, in which the second voltage level is between the first and the third voltageE levels.Type: GrantFiled: September 5, 2011Date of Patent: July 14, 2015Assignee: SiPix Technology Inc.Inventors: Ping-Yueh Cheng, Chun-An Wei, Wen-Pin Chiu, Feng-Shou Lin
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Publication number: 20150097877Abstract: The present invention is directed to driving methods for a color display device which can display high quality color states. The display device utilizes an electrophoretic fluid which comprises three types of pigment particles having different optical characteristics.Type: ApplicationFiled: October 6, 2014Publication date: April 9, 2015Inventors: Craig LIN, Jo-Cheng Huang, Heng-Che Chen, Peter Laxton, Ming Wang, Ping-Yueh Cheng, HongMei Zang
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Patent number: 8928641Abstract: A multiplex electrophoretic display driver circuit comprises a memory unit, a display controller and a voltage driving unit. The memory unit has two registers respectively storing the current and former gray-level matrix signals. The gray-level matrix signal contains gray-level data corresponding to electrophoretic pixels. The display controller has an encoding circuit and a counting circuit. The encoding circuit generates a difference-value matrix signal containing difference values according to a difference between the current and former gray-level matrix signals and then generates a voltage-difference matrix signal containing voltage-difference signals corresponding to the electrophoretic pixels. The counting circuit receives the difference-value matrix signal and counts to generate refreshing values corresponding to the difference values. The encoding circuit adds the refreshing values to a next-cycled difference-value matrix signal to generate a new voltage-difference matrix signal.Type: GrantFiled: December 2, 2009Date of Patent: January 6, 2015Assignee: SIPIX Technology Inc.Inventors: Wen-Pin Chiu, Ping-Yueh Cheng, Feng-Shou Lin, Craig Lin, Bryan Chan
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Patent number: 8576164Abstract: The present invention is directed to a driving method for compensating the response speed change of an electrophoretic display due to temperature variation, photo-degradation or aging of the display device, without a complex structure (e.g., use of sensors). This is accomplished by combining two waveforms, one of which causes the grey level to become dimmer and the other waveform causes the grey level to become brighter, as the response speed degrades.Type: GrantFiled: October 21, 2010Date of Patent: November 5, 2013Assignee: Sipix Imaging, Inc.Inventors: Robert A. Sprague, Craig Lin, Tin Pham, Ping-Yueh Cheng
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Patent number: 8537105Abstract: An electro-phoretic display apparatus is disclosed. The electro-phoretic display apparatus mentioned above includes a plurality of pixel unit lines, a plurality of common voltage transferring lines, and a common voltage generator. The common voltage transferring lines extend and connect to a common line segment directly along a layout direction. The common voltage generator generates a common voltage and provides the common voltage for directly electrically connecting to a connection point on the common line segment. Moreover, the transfer timing delays of transferring the common voltage from the connection point to the first common voltage transferring line and the last common voltage transferring line are the same.Type: GrantFiled: September 7, 2011Date of Patent: September 17, 2013Assignee: SiPix Technology Inc.Inventors: Wen-Pin Chiu, Chun-An Wei, Ping-Yueh Cheng, Feng-Shou Lin
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Publication number: 20120098817Abstract: A driving method for an electro-phoretic display apparatus is disclosed. The method includes generating a common voltage by a common voltage generator held at a first voltage level before a polarity transfer, generating the common voltage held at a second voltage level when the polarity transfer starts during a first timing period, and generating the common voltage transfers held at a third voltage level during a second timing period after the first timing period, in which the second voltage level is between the first and the third voltage levels.Type: ApplicationFiled: September 5, 2011Publication date: April 26, 2012Applicant: SIPIX TECHNOLOGY INC.Inventors: Ping-Yueh Cheng, Chun-An Wei, Wen-Pin Chiu, Feng-Shou Lin
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Publication number: 20120099180Abstract: An electro-phoretic display apparatus is disclosed. The electro-phoretic display apparatus mentioned above includes a plurality of pixel unit lines, a plurality of common voltage transferring lines, and a common voltage generator. The common voltage transferring lines extend and connect to a common line segment directly along a layout direction. The common voltage generator generates a common voltage and provides the common voltage for directly electrically connecting to a connection point on the common line segment. Moreover, the transfer timing delays of transferring the common voltage from the connection point to the first common voltage transferring line and the last common voltage transferring line are the same.Type: ApplicationFiled: September 7, 2011Publication date: April 26, 2012Applicant: SIPIX TECHNOLOGY INC.Inventors: Wen-Pin Chiu, Chun-An Wei, Ping-Yueh Cheng, Feng-Shou Lin
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Publication number: 20120098740Abstract: An electro-phoretic display apparatus is disclosed. The electro-phoretic display apparatus has a plurality of pixel units and is coupled to an alternating current (AC) common voltage. The electro-phoretic display apparatus includes a switching unit coupled between a path of a plurality of storage capacitors in the pixel units and the common voltage. The switching unit is turned off according to a control signal before the common voltage carries out a transition action. The switching unit is turned on according to the control signal after the common voltage carries out the transition action.Type: ApplicationFiled: September 4, 2011Publication date: April 26, 2012Applicant: SIPIX TECHNOLOGY INC.Inventors: Wen-Pin Chiu, Chun-An Wei, Ping-Yueh Cheng, Feng-Shou Lin
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Publication number: 20110221740Abstract: A driving method of an electrophoretic display having at least a display particle is provided. The driving method includes the following steps. A first voltage difference is applied to a data line in a first period, in which the data line corresponds to one of the display particles. At least a particle restore period is inserted in the first period, and a second voltage difference is applied to the data line in the particle restore periods, in which the second voltage difference is different from the first voltage difference. With this method disclosed here, the maxima brightness, maxima darkness, contrast ratio, color saturation, bistability, and image updating time can be largely improved.Type: ApplicationFiled: March 8, 2011Publication date: September 15, 2011Applicant: SIPIX TECHNOLOGY INC.Inventors: Bo-Ru Yang, Ping-Yueh Cheng, Chi-Mao Hung, Chun-An Wei, Yao-Jen Hsieh