Patents by Inventor Peter Andersson Ersman
Peter Andersson Ersman 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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Publication number: 20240045297Abstract: There is provided an electrochromic fixed image display and a method for manufacturing the display. The electrochromic fixed image display for displaying a predetermined symbol comprising a stack of layers of: a colour layer which is configured to provide a resulting colour contrast to the display when comparing its on-state and off-state; a first electrochromic electrode layer arranged behind said colour layer in a viewing direction; an electronically and ionically insulating symbol defining layer, arranged behind the first electrode layer, which comprises at least one opening defining the shape the predetermined symbol; an electrolyte, arranged behind the symbol defining layer, which fills and covers the opening of said symbol defining layer; and a counter electrode layer, arranged behind the electrolyte layer, comprising an electronically conductive material, wherein the electrolyte layer is in ionic contact with the first electrode layer and the counter electrode layer.Type: ApplicationFiled: December 11, 2020Publication date: February 8, 2024Applicant: RISE Research Institutes of Sweden ABInventors: Jessica ÅHLIN, Peter ANDERSSON ERSMAN, Kathrin HÜBSCHER, Marie NILSSON
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Patent number: 9709867Abstract: There is disclosed an electrochromic passive-matrix display, wherein each passively addressed pixel cell comprises an electrolyte ionically connecting an electrochromic and electrochemically active polymer and a layer of electrically conducting carbon. Thus, each pixel has a pronounced threshold voltage sufficient for reducing cross talk in an electrochromic display.Type: GrantFiled: October 5, 2011Date of Patent: July 18, 2017Assignees: RISE Acreo AB, Lintec CorporationInventors: Peter Andersson Ersman, Jun Kawahara
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Patent number: 9508840Abstract: High frequency currents may be rectified by means of a printable diode comprising a first and a second electrode, between which a semiconducting layer comprising semiconducting particles embedded in an inert matrix, and a conducting layer comprising conducting particles embedded in an inert matrix are arranged.Type: GrantFiled: November 22, 2011Date of Patent: November 29, 2016Assignees: ACREO SWEDICH ICT AB, DE LA RUE INTERNATIONAL LIMITEDInventors: Magnus Berggren, Xin Wang, Mats Robertsson, Petronella Norberg, Philip George Cooper, Peter Andersson Ersman
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Patent number: 9494839Abstract: A process for manufacturing an electrochemically active device comprising the steps of: —providing a substrate (110) comprising an electrode receiving surface portion (111) having substantially constant wetting tension throughout said electrode receiving surface portion, —providing a plurality of first electrodes (120) directly on said electrode receiving surface portion, —leaving intermediate portions (130) of said electrode receiving surface portion (111) free from said electrodes, —providing a layer of electrolyte (140) covering said plurality of first electrodes (120) and said intermediate portions (130), and—wherein wetting tension of the surfaces of the intermediate portions (130) is arranged to act more repelling on the electrolyte compared to the wetting tension of the surfaces of the plurality of first electrodes (120), whereby, the electrolyte is concentrated to the surfaces of the plurality of first electrodes (120), and the surfaces of the intermediate portions (130) are substantially free of elecType: GrantFiled: April 4, 2012Date of Patent: November 15, 2016Assignees: ACREO SWEDISH ICT AB, LINTEC CORPORATIONInventors: Peter Andersson Ersman, Jun Kawahara, Kazuya Katoh, David Nilsson
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Patent number: 9224343Abstract: There is provided a display device, which is arranged to display a predetermined fixed image, having a pixel electrode layer comprising a plurality of pixel portions, and opaque solidified electrolyte arranged in a plurality of separated segments in ionic contact with a respective pixel portion, wherein each electrolyte segment and respective pixel portion form a pixel element. The fixed image display further comprises at least one continuous electrode layer extending across at least two rows and two columns of the pixel matrix, and is connected to the electrolyte segments of a subset of the pixel elements. Upon application of an electric potential difference between the patterned electrode layer and the pixel electrode layer, the pixel portions of the subset of the pixel elements switch color.Type: GrantFiled: December 17, 2012Date of Patent: December 29, 2015Assignees: ACREO SWEDISH ICT AB, LINTEC CORPORATIONInventors: Peter Andersson Ersman, Göran Gustafsson, David Nilsson, Jun Kawahara, Kazuya Katoh
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Patent number: 9213210Abstract: A directly addressable display device comprising at least one pixel cell (1-9), each pixel cell (1-9) being arranged for displaying a symbol, which symbol is repeatedly switchable between an on-state and an off-state, wherein each pixel cell (1-9) comprises an electrochromic layer (110) comprising an electrochromic and electrochemically active organic polymer material being electrochemically switchable between two different visually detectable coloring states; a counter electrode layer (140) comprising an electronically conductive material, wherein said counter electrode layer (140) in the viewing direction of the display device is arranged behind said electrochromic layer (110); an electrolyte layer (130), which electrolyte layer (130) is solid and arranged spatially between, and in ionic contact with, said electrochromic layer (110) and said counter electrode layer (140); a symbol defining layer (120) which is electronically and ionically insulating, arranged in direct ionic contact with said electrochromicType: GrantFiled: October 5, 2012Date of Patent: December 15, 2015Assignee: Acreo Swedish ICT ABInventors: Peter Andersson Ersman, Mats Sandberg
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Publication number: 20140307302Abstract: A directly addressable display device comprising at least one pixel cell (1-9), each pixel cell (1-9) being arranged for displaying a symbol, which symbol is repeatedly switchable between an on-state and an off-state, wherein each pixel cell (1-9) comprises an electrochromic layer (110) comprising an electrochromic and electrochemically active organic polymer material being electrochemically switchable between two different visually detectable coloring states; a counter electrode layer (140) comprising an electronically conductive material, wherein said counter electrode layer (140) in the viewing direction of the display device is arranged behind said electrochromic layer (110); an electrolyte layer (130), which electrolyte layer (130) is solid and arranged spatially between, and in ionic contact with, said electrochromic layer (110) and said counter electrode layer (140); a symbol defining layer (120) which is electronically and ionically insulating, arranged in direct ionic contact with said electrochromicType: ApplicationFiled: October 5, 2012Publication date: October 16, 2014Applicant: ACREO SWEDISH ICT ABInventors: Peter Andersson Ersman, Mats Sandberg
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Patent number: 8810888Abstract: An embodiment of the present invention relates to electrochemical devices including an electrochemically active layer having the ability of electrochemically altering its redox state. By providing a portion of an electrode of corrosion resistant material between an electrolyte and an electrochemically active layer, undesired discoloration due to the electrochemical reaction of an electrochemical device is reduced.Type: GrantFiled: October 5, 2010Date of Patent: August 19, 2014Assignee: Acreo Swedish ICT ABInventors: Peter Andersson Ersman, David Nilsson, Magnus Berggren, Per-Olof Svensson, Nathaniel D. Robinson
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Publication number: 20140041213Abstract: A process for manufacturing an electrochemically active device comprising the steps of: —providing a substrate (110) comprising an electrode receiving surface portion (111) having substantially constant wetting tension throughout said electrode receiving surface portion, —providing a plurality of first electrodes (120) directly on said electrode receiving surface portion, —leaving intermediate portions (130) of said electrode receiving surface portion (111) free from said electrodes, —providing a layer of electrolyte (140) covering said plurality of first electrodes (120) and said intermediate portions (130), and —wherein wetting tension of the surfaces of the intermediate portions (130) is arranged to act more repelling on the electrolyte compared to the wetting tension of the surfaces of the plurality of first electrodes (120), whereby, the electrolyte is concentrated to the surfaces of the plurality of first electrodes (120), and the surfaces of the intermediate portions (130) are substantially free of eleType: ApplicationFiled: April 4, 2012Publication date: February 13, 2014Applicants: ACREO SWEDISH ICT AB, LINTEC CORPORATIONInventors: Peter Andersson Ersman, Jun Kawahara, Kazuya Katoh, David Nilsson
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Publication number: 20130293031Abstract: High frequency currents may be rectified by means of a printable diode comprising a first and a second electrode, between which a semiconducting layer comprising semiconducting particles embedded in an inert matrix, and a conducting layer comprising conducting particles embedded in an inert matrix are arranged.Type: ApplicationFiled: November 22, 2011Publication date: November 7, 2013Applicants: Acreo Swedish ICT AB, De La Rue International LimitedInventors: Magnus Berggren, Xin Wang, Mats Robertsson, Petronella Norberg, Philip George Cooper, Peter Andersson Ersman
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Patent number: 8564870Abstract: There is disclosed a method for manufacturing a display device arrangement, which includes a plurality of electrochromic pixel devices arranged in a matrix. First a plastic insulating layer is provided comprising passages for electrical conductors. Thereafter, in optional order, electrical conductors are provided in the passages, pixel layers are printed on one side of the insulating layer, and control layers are printed on the other side of the insulating layer. By this method the manufacturing of a printed electrochromic pixel device is improved.Type: GrantFiled: October 5, 2010Date of Patent: October 22, 2013Assignees: Acreo AB, Lintec CorporationInventors: Peter Andersson Ersman, Kazuya Katoh, Jun Kawahara
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Publication number: 20130162512Abstract: There is provided a display device, which is arranged to display a predetermined fixed image, having a pixel electrode layer comprising a plurality of pixel portions, and opaque solidified electrolyte arranged in a plurality of separated segments in ionic contact with a respective pixel portion, wherein each electrolyte segment and respective pixel portion form a pixel element. The fixed image display further comprises at least one continuous electrode layer extending across at least two rows and two columns of the pixel matrix, and is connected to the electrolyte segments of a subset of the pixel elements. Upon application of an electric potential difference between the patterned electrode layer and the pixel electrode layer, the pixel portions of the subset of the pixel elements switch color.Type: ApplicationFiled: December 17, 2012Publication date: June 27, 2013Inventors: Peter ANDERSSON ERSMAN, Göran GUSTAFSSON, David NILSSON, Jun KAWAHARA, Kazuya KATOH
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Publication number: 20130128332Abstract: An embodiment of the present invention relates to electrochemical devices including an electrochemically active layer having the ability of electrochemically altering its redox state. By providing a portion of an electrode of corrosion resistant material between an electrolyte and an electrochemically active layer, undesired discoloration due to the electrochemical reaction of an electrochemical device is reduced.Type: ApplicationFiled: October 5, 2010Publication date: May 23, 2013Applicant: Acreo ABInventors: Peter Andersson Ersman, David Nilsson, Magnus Berggren, Per-Olof Svensson, Nathaniel D. Robinson
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Publication number: 20120212793Abstract: There is disclosed a method for manufacturing a display device arrangement, which includes a plurality of electrochromic pixel devices arranged in a matrix. First a plastic insulating layer is provided comprising passages for electrical conductors. Thereafter, in optional order, electrical conductors are provided in the passages, pixel layers are printed on one side of the insulating layer, and control layers are printed on the other side of the insulating layer. By this method the manufacturing of a printed electrochromic pixel device is improved.Type: ApplicationFiled: October 5, 2010Publication date: August 23, 2012Applicants: LINTEC CORPORATION, ACREO ABInventors: Peter Andersson Ersman, Kazuya Katoh, Jun Kawahara
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Publication number: 20120081775Abstract: There is disclosed an electrochromic passive-matrix display, wherein each passively addressed pixel cell comprises an electrolyte ionically connecting an electrochromic and electrochemically active polymer and a layer of electrically conducting carbon. Thus, each pixel has a pronounced threshold voltage sufficient for reducing cross talk in an electrochromic display.Type: ApplicationFiled: October 5, 2011Publication date: April 5, 2012Applicants: LINTEC CORPORATION, ACREO ABInventors: Peter Andersson Ersman, Jun Kawahara