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公开(公告)号：US10001640B1
公开(公告)日：2018-06-19
申请号：US15193855
申请日：2016-06-27
Applicant: Amazon Technologies, Inc.
Inventor： Abhishek Kumar , Toru Sakai
CPC classification number: G02B26/005 , G02B5/201 , G02B2207/115 , G09G3/348 , G09G2300/0413
Abstract: A pixel-based display device, such as an electrowetting display, includes an array of routing dummy pixels that are electrically interconnected in series, forming a conductive routing trace through the pixel area. Within the routing dummy pixel substrate, a source-drain metal layer is electrically isolated from a gate metal layer. A source metal interconnect between the source-drain metal layers of vertically adjacent routing dummy pixels electrically connects the vertically adjacent routing dummy pixels in series. The routing trace conducts a common voltage from a power supply to a common connector pad, facilitating relocation of the pad from the bottom to the top of the display. The pad and the source-drain and reflector metal layers of the routing dummy pixels have the same electric potential, ensuring that the routing dummy pixels remain in an “off” state and appear black throughout operation of the display device.
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公开(公告)号：US09977233B1
公开(公告)日：2018-05-22
申请号：US14501689
申请日：2014-09-30
Applicant: Amazon Technologies, Inc.
Inventor： Toru Sakai , Tulasi Sridhar Reddy Guntaka
IPC: G02B26/00
CPC classification number: G02B26/005
Abstract: An electrowetting display comprises a first support plate, a second support plate substantially parallel to the first support plate, an electrolyte solution disposed between the first support plate and the second support plate, and a plurality of transparent diffuser elements protruding into the electrolyte solution from non-contiguous areas of the second support plate. Recesses separate the transparent diffuser elements.
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公开(公告)号：US20170276928A1
公开(公告)日：2017-09-28
申请号：US15077643
申请日：2016-03-22
Applicant: AMAZON TECHNOLOGIES, INC.
Inventor： Toru Sakai
CPC classification number: G02B26/005 , G02B5/201 , G02B5/223 , G02F1/133512 , G02F2001/133519
Abstract: A display device includes a bottom support plate and an opposing top support plate. A pixel region is between the bottom support plate and the top support plate. A color filter layer on an inner surface of the top support plate includes a plurality of color filters, wherein a first color filter of the plurality of color filters is positioned within the pixel region. A black matrix member is disposed between the first color filter and an adjacent second color filter of the plurality of color filters. A portion of the first color filter is disposed over the black matrix material and a portion of the second color filter is disposed over the portion of the first color filter.
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公开(公告)号：US20150260983A1
公开(公告)日：2015-09-17
申请号：US14727646
申请日：2015-06-01
Applicant: Amazon Technologies, Inc.
Inventor： Daniel Figura , Toru Sakai , Christian Etienne Hendriks
IPC: G02B26/00
CPC classification number: G02B26/005 , G09G3/34 , G09G3/3426 , G09G3/348 , G09G5/10 , G09G2300/04 , G09G2300/0404 , G09G2300/08 , Y10T29/417
Abstract: The subject matter disclosed herein relates to an electrowetting display comprising: a dielectric barrier layer formed on a substrate; a hydrophobic layer formed on the dielectric barrier layer, wherein the dielectric barrier layer maintains a separation between the hydrophobic layer and the substrate; a patterned pixel grid formed on the hydrophobic layer, wherein the patterned pixel grid comprises rows and columns of pixel walls that form field pixels and border pixels; an oil film overlying the hydrophobic layer, wherein the oil film is partitioned by the patterned pixel grid; and an electrolyte overlying the oil film and the patterned pixel grid, wherein one or more of the rows or the columns of pixel walls of the patterned pixel grid includes a substantially nonlinear-shaped portion to reduce sheer stress between the patterned pixel grid and the hydrophobic layer.
Abstract translation: 本文公开的主题涉及电润湿显示器，其包括：形成在基板上的介电阻挡层; 形成在所述介电阻挡层上的疏水层，其中所述介电阻挡层保持所述疏水层和所述衬底之间的分离; 形成在所述疏水层上的图案化像素栅格，其中所述图案化像素栅格包括形成场像素和边界像素的像素壁的行和列; 覆盖疏水层的油膜，其中油膜被图案化的像素栅格分隔; 以及覆盖油膜和图案化像素栅格的电解质，其中图案化像素栅格的像素壁的行或列中的一个或多个包括基本非线性形状的部分，以减少图案化像素栅格和疏水性像素栅格之间的纯粹应力 层。
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公开(公告)号：US10516057B1
公开(公告)日：2019-12-24
申请号：US15369186
申请日：2016-12-05
Applicant: Amazon Technologies, Inc.
Inventor： Toru Sakai , Abhishek Kumar
IPC: G02B26/00 , H01L29/786 , H01L29/49 , H01L29/423 , G09G3/34 , G06F3/041
Abstract: An electrowetting display device is presented. The device includes a support plate and a plurality of pixel walls over the support plate. The plurality of pixel walls are associated with an electrowetting pixel. The device includes a switch over the support plate. The switch includes a first terminal. The device includes an electrode over the support plate. The electrode is electrically connected to the first terminal of the switch. The electrode defines a notch region extending from a first end of the electrode towards a first pixel wall in the plurality of pixel walls. The device includes an insulated notch structure that includes a dielectric layer. The insulated notch structure is over at least a portion of the switch and at least a portion of the notch region.
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Patent Agency Ranking
公开(公告)号：US10481388B1
公开(公告)日：2019-11-19
申请号：US15633625
申请日：2017-06-26
Applicant: Amazon Technologies, Inc.
Inventor： Toru Sakai , Sridhar Guntaka , Karel Johannes Gerhardus Hinnen
Abstract: An electrowetting display device includes a first support plate and a second support plate opposite the first support plate, and a plurality of pixel walls over the first support plate. The plurality of pixel walls are associated with an electrowetting pixel and define a volume containing at least a portion of an oil and an electrolyte fluid. The electrolyte fluid has a first refractive index. The electrowetting display device includes a pixel spacer between a first pixel wall in the plurality of pixel walls and the second support plate. A second refractive index of the pixel spacer is less than the first refractive index. The electrowetting display device includes a pixel electrode over the first support plate for applying a voltage within the electrowetting pixel to cause relative displacement of the oil and the electrolyte fluid.
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公开(公告)号：US10475401B1
公开(公告)日：2019-11-12
申请号：US15617689
申请日：2017-06-08
Applicant: Amazon Technologies, Inc.
Inventor： Robert Andrew Hayes , Gor Manukyan , Melanie Maria Hubertina Wagemans , Daniel Figura , Bokke Johannes Feenstra , Toru Sakai
Abstract: An electrowetting display device comprising an electrowetting element comprising a control system, a first fluid, a second fluid immiscible with the first fluid, and a first and second support plate. A first and second electrode are, respectively, overlapped by a first and second portion of a surface of the first support plate. The control system is operable to, in response to input data indicative of a first grey level, apply a first voltage between the second fluid and the first electrode such that the second fluid is in contact with at least part of the first portion and, subsequently, apply a second voltage between the second fluid and the second electrode to translate the first fluid such that the second fluid is in contact with at least part of the second portion.
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公开(公告)号：US10444490B1
公开(公告)日：2019-10-15
申请号：US15609867
申请日：2017-05-31
Applicant: AMAZON TECHNOLOGIES, INC.
Inventor： Tulasi Sridhar Reddy Guntaka , Toru Sakai , Abhishek Kumar , Karel Johannes Gerhardus Hinnen
Abstract: A display device including a first support plate and an opposing second support plate. A first pixel is positioned between the first support plate and the second support plate. A spacer structure is coupled to the second support plate and associated with the first pixel. The spacer structure allows propagation of light having a first wavelength and prevents propagation of light having a second wavelength.
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19.发明授权公开(公告)号：US10401614B1
公开(公告)日：2019-09-03
申请号：US15197119
申请日：2016-06-29
Applicant: Amazon Technologies, Inc.
Inventor： Sridhar Guntaka , Toru Sakai , Karel Johannes Gerhardus Hinnen
Abstract: A system and method for an electrowetting display device are presented. The electrowetting display device includes a first support plate and a second support plate, A plurality of pixel walls associated with an electrowetting pixel are formed over the first support plate. A color filter is over the electrowetting pixel. The color filter allows propagation of visible light of a first color and prevents propagation of visible light of a second color. In an embodiment, the color filter includes a layer of light-absorbing photoresist that is patterned into a first plurality of regions and a second plurality of regions. Each region in the first plurality of regions has a first optical density and each region in the second plurality of regions has a second optical density so that the color filter has a non-uniform optical density.
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20.发明授权公开(公告)号：US10379340B1
公开(公告)日：2019-08-13
申请号：US15717802
申请日：2017-09-27
Applicant: Amazon Technologies, Inc.
Inventor： Wilhelmus Johannes Robertus Van Lier , Toru Sakai , Abhishek Kumar , Gor Manukyan
Abstract: An electrowetting display device includes a first support plate and a second support plate opposite the first support plate. A plurality of pixel walls are formed over the first support plate. The plurality of pixel walls are associated with a first pixel and a second pixel. The plurality of pixel walls define a first display area of the first pixel and a second display area of the second pixel. A first electrode is formed over the first support plate underneath the first display area of the first pixel. A second electrode is formed over the first support plate underneath the second display area of the second pixel. The first electrode is electrically connected to the second electrode. A first switch may be positioned underneath the second display area, with the first switch being electrically connected to the first electrode.
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