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公开(公告)号：US10330918B1
公开(公告)日：2019-06-25
申请号：US15350662
申请日：2016-11-14
Applicant: AMAZON TECHNOLOGIES, INC.
Inventor： Toru Sakai
Abstract: A display device includes a first support plate and a second support plate. A pixel region between the first support plate and the second support plate includes a plurality of pixel wall portions over the first support plate forming a perimeter of the pixel region. A first liquid and a second liquid that is immiscible with the first liquid are disposed in the pixel region. A light-blocking layer is disposed on an inner surface of the second support plate. The light-blocking layer includes a light-blocking portion positioned over a first pixel wall portion of the plurality of pixel wall portions. An electrically conductive layer comprising an electrically conductive portion is disposed on a first surface of the light-blocking portion. A recessed region is aligned with the electrically conductive portion such that a portion of the second liquid disposed within the recessed region contacts the electrically conductive portion.
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公开(公告)号：US10274720B1
公开(公告)日：2019-04-30
申请号：US15259546
申请日：2016-09-08
Applicant: AMAZON TECHNOLOGIES, INC.
Abstract: A display device includes a first support plate and an opposing second support plate. A first pixel region between the first support plate and the second support plate includes a first thin film transistor (TFT) structure over the first support plate. A second pixel region between the first support plate and the second support plate and adjacent the first pixel region includes a second TFT structure over the first support plate. A first pixel wall portion is positioned over the first support plate between the first pixel region and the second pixel region such that each of the first TFT structure and the second TFT structure is positioned adjacent the first pixel wall portion. A light-blocking portion is disposed on an inner surface of the second support plate and positioned over the first TFT structure and the second TFT structure.
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公开(公告)号：US10133057B1
公开(公告)日：2018-11-20
申请号：US14977385
申请日：2015-12-21
Applicant: Amazon Technologies, Inc.
Inventor： Cristina Maria Petcu , Toru Sakai
IPC: G02B26/00
Abstract: An electrowetting element comprising a first fluid and a second fluid immiscible with the first fluid. A support plate comprises an electrode, a support plate surface and a substrate. An inorganic dielectric layer is located between the substrate and the support plate surface and is transmissive to light in the visible spectrum. An organic dielectric layer is located between the substrate and the support plate surface and is transmissive to visible light. The inorganic dielectric layer has an inorganic dielectric layer deformation behavior and the organic dielectric layer has an organic dielectric layer deformation behavior substantially equal to the inorganic dielectric layer deformation behavior.
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公开(公告)号：US09995926B1
公开(公告)日：2018-06-12
申请号：US14968656
申请日：2015-12-14
Applicant: Amazon Technologies, Inc.
Inventor： Toru Sakai
CPC classification number: G02B26/005 , G02B5/0215 , G02B2207/115
Abstract: A display device includes a first support plate. A pixel region is positioned over the first support plate. The pixel region includes a pixel and an electrode layer disposed between the first support plate and the pixel region. A specular reflective layer is disposed on the electrode layer. The specular reflective layer has a first refractive index. A diffusion layer is disposed on the specular reflective layer. The diffusion layer includes a plurality of islands. Each island of the plurality of islands is separated by a distance from an adjacent island of the plurality of islands, wherein a portion of the specular reflective layer is exposed between two adjacent islands of the plurality of islands. Each island has a second refractive index greater than the first refractive index.
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公开(公告)号：US09971144B1
公开(公告)日：2018-05-15
申请号：US15188827
申请日：2016-06-21
Applicant: Amazon Technologies, Inc.
Inventor： Toru Sakai , Abhishek Kumar
CPC classification number: G02B26/005 , G02B26/004 , G02B26/02 , G09G3/34 , G09G3/3433 , G09G3/348 , G09G2300/0426 , Y10T29/49117
Abstract: An electrowetting display device comprises a first fluid, an array of electrowetting elements, each respectively comprising a portion of the first fluid, and a first support plate. The first support plate comprises a first region extending along a first edge of the first support plate and a second region extending along a second edge of the first support plate. The first and second regions are located outside the array of electrowetting elements, and the first region is non-overlapping the second region. A first electrode is located in the first region and an electrical component is located in the second region. A second support plate of the electrowetting display device includes a second electrode in electrical contact with a second fluid immiscible with the first fluid. An electrical connector connects the first electrode to the second electrode and a conductor connects the first electrode to the electrical component.
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Patent Agency Ranking
公开(公告)号：US09678330B1
公开(公告)日：2017-06-13
申请号：US14972733
申请日：2015-12-17
Applicant: Amazon Technologies, Inc.
Inventor： Toru Sakai
CPC classification number: G02B26/005 , G02B5/0226 , G02B5/0236 , G02B5/0273 , G02B5/0278
Abstract: A display device including a top support plate having a first refractive index. A diffusion layer on a first surface of the top support plate includes a plurality of features. Each feature of the plurality of features has a second refractive index greater than the first refractive index. A transparent conductive polymer layer is applied over the diffusion layer. The transparent conductive polymer layer has a third refractive index equal to the first refractive index, and provides a common electrode.
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公开(公告)号：US10209508B1
公开(公告)日：2019-02-19
申请号：US15272742
申请日：2016-09-22
Applicant: AMAZON TECHNOLOGIES, INC.
Inventor： Toru Sakai , Jeroen Cornelis van der Gaag
Abstract: A display device includes a first support plate and a second support plate. A pixel region between the first support plate and the second support plate includes a plurality of pixel wall portions over the first support plate forming a perimeter of the pixel region. A first liquid and a second liquid that is immiscible with the first liquid are disposed in the pixel region. A light-blocking portion is disposed on an inner surface of the second support plate and over a first pixel wall portion of the plurality of pixel wall portions. A recessed region is aligned with the light-blocking portion. An electrically conductive layer is disposed within the recessed region and disposed on a portion of the light-blocking portion. The electrically conductive layer has a first surface contacting the second liquid.
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公开(公告)号：US10156714B1
公开(公告)日：2018-12-18
申请号：US15466765
申请日：2017-03-22
Applicant: Amazon Technologies, Inc.
Inventor： Toru Sakai , Abhishek Kumar
Abstract: A device includes first and second support plates. A plurality of pixel walls are formed over the first support plate. The plurality of pixel walls are associated with an electrowetting pixel and define a volume. The electrowetting pixel includes a fluid accumulation region defined by a recess in a hydrophobic layer of the electrowetting pixel. A transistor is over the first support plate underneath a first pixel wall in the plurality of pixel walls and a pixel electrode is formed over the first support plate underneath the volume defined by the plurality of pixel walls in electrical contact with the transistor. A bottom electrode is formed over the first support plate underneath the volume defined by the plurality of pixel walls. A first portion of the bottom electrode is located underneath the fluid accumulation region and a second portion of the bottom electrode is located underneath the pixel electrode.
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公开(公告)号：US09927606B1
公开(公告)日：2018-03-27
申请号：US15256283
申请日：2016-09-02
Applicant: AMAZON TECHNOLOGIES, INC.
Inventor： Toru Sakai
CPC classification number: G02B26/005 , G02B5/003 , G02B5/0236 , G02B5/0273 , G02B5/0278 , G02B5/201
Abstract: A display device includes a first support plate and a second support plate. The second support plate has a first refractive index. A pixel region is positioned between the first support plate and the second support plate. A first liquid and a second liquid that is immiscible with the first liquid are disposed in the pixel region. A diffusion layer disposed between the first support plate and the second support plate contacts the second liquid. The diffusion layer includes a first region providing a common electrode associated with the pixel region.
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公开(公告)号：US09791689B1
公开(公告)日：2017-10-17
申请号：US14974837
申请日：2015-12-18
Applicant: Amazon Technologies, Inc.
CPC classification number: G02B26/005 , G03F7/0007 , G03F7/40
Abstract: An electrowetting display comprises a bottom support plate including pixel walls and a top support plate that includes spacers. The pixel walls and/or the spacers may be joined together to create a joined spacer and pixel wall before being fully cured. In some configurations, the pixel walls and the spacers are made from photoresist that is not fully cured before assembly of the display. After aligning the spacers over the pixel walls, the spacers and pixel walls are joined. In some configurations, the junction of the pixel walls and the spacers is exposed to UV light to more fully cure the photoresist. In addition, or alternatively to exposure to the UV light compressive force may be applied to fuse the pixel walls and spacers. The assembled display may also be exposed to a final bake to more fully cure the photoresist.
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