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公开(公告)号：US09568727B2
公开(公告)日：2017-02-14
申请号：US14224989
申请日：2014-03-25
Applicant: Amazon Technologies, Inc.
Inventor： Pavel Novoselov
CPC classification number: G02B26/005
Abstract: The subject matter disclosed herein relates to reduction of effective voltage drops within pixels in active matrix displays such as electrowetting display devices. The electrowetting display device comprises a plurality of pixel areas, wherein each pixel area comprises a hydrophobic surface, a first fluid and a second fluid on the hydrophobic surface, wherein the first fluid is immiscible with the second fluid, and a pixel electrode under the hydrophobic surface, wherein the pixel electrode has a substantially U-shape. A thin film transistor is coupled to the pixel electrode and a voltage source. Voltage via the thin film transistor and the voltage source applied to the hydrophobic surface via the pixel electrode causes the hydrophobic surface to become more hydrophobilic to thereby move the second fluid onto the hydrophobic surface to thereby substantially displace the first fluid on the hydrophobic surface.
Abstract translation: 本文公开的主题涉及在诸如电润湿显示装置的有源矩阵显示器中降低像素内的有效电压降。 电润湿显示装置包括多个像素区域，其中每个像素区域包括疏水表面，疏水表面上的第一流体和第二流体，其中第一流体与第二流体不混溶，以及在疏水性表面下的像素电极 表面，其中所述像素电极具有大致U形。 薄膜晶体管耦合到像素电极和电压源。 通过薄膜晶体管和经由像素电极施加到疏水表面的电压源的电压使得疏水表面变得更疏水，从而将第二流体移动到疏水表面上，从而基本上使第一流体在疏水表面上移位。
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公开(公告)号：US09529189B1
公开(公告)日：2016-12-27
申请号：US14870449
申请日：2015-09-30
Applicant: Amazon Technologies, Inc.
Inventor： Erno Hermanus Antonius Langendijk , Christian Etienne Hendriks , Tulasi Sridhar Reddy Guntaka , Steven Ramos Carneiro , Pavel Novoselov
IPC: G02B26/00
CPC classification number: G02B26/005 , G02B5/201
Abstract: Subject matter disclosed herein relates to improving luminance and reducing color shifts in electrowetting displays. The electrowetting display comprises a plurality of electrowetting elements separated by partition walls and spacers. The spacers and/or partition walls are reflective. When incident light that enters a pixel or subpixel is reflected and encounters a spacer and/or partition wall, the light is reflected such that the reflected light exits the pixel or subpixel into which the incident light entered. This improves luminance and reduces color shifts of the electrowetting display.
Abstract translation: 本文公开的主题涉及改善电润湿显示器的亮度和减少颜色偏移。 电润湿显示器包括由分隔壁和间隔物隔开的多个电润湿元件。 间隔物和/或分隔壁是反射性的。 当进入像素或子像素的入射光被反射并遇到间隔物和/或分隔壁时，光被反射，使得反射光离开入射光入射的像素或子像素。 这提高了电泳显示器的亮度并减少了颜色偏移。
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公开(公告)号：US09348132B1
公开(公告)日：2016-05-24
申请号：US14559831
申请日：2014-12-03
Applicant: Amazon Technologies, Inc.
Inventor： Pavel Novoselov , Gor Manukyan , Tulasi Sridhar Reddy Guntaka
CPC classification number: G02B26/005 , B01L2400/0427 , G02B26/004 , G02B26/02 , G09G3/34 , G09G3/348 , G09G2300/04
Abstract: A method for fabricating an electrowetting display may include forming pixel electrodes on a support plate; depositing a first layer on the pixel electrodes; etching portions of the first layer to form pixel walls that partition pixel regions; depositing a second layer on the pixel electrodes and the pixel walls; etching portions of the second layer to form spacers on tops of the pixel walls; and depositing a hydrophobic layer to at least partially cover the pixel electrodes.
Abstract translation: 电润湿显示器的制造方法可以包括在支撑板上形成像素电极; 在所述像素电极上沉积第一层; 蚀刻第一层的部分以形成分隔像素区域的像素壁; 在像素电极和像素壁上沉积第二层; 蚀刻第二层的部分以在像素壁的顶部上形成间隔物; 以及沉积疏水层以至少部分地覆盖像素电极。
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公开(公告)号：US20150277100A1
公开(公告)日：2015-10-01
申请号：US14224989
申请日：2014-03-25
Applicant: Amazon Technologies, Inc.
Inventor： Pavel Novoselov
IPC: G02B26/00
CPC classification number: G02B26/005
Abstract: The subject matter disclosed herein relates to reduction of effective voltage drops within pixels in active matrix displays such as electrowetting display devices. The electrowetting display device comprises a plurality of pixel areas, wherein each pixel area comprises a hydrophobic surface, a first fluid and a second fluid on the hydrophobic surface, wherein the first fluid is immiscible with the second fluid, and a pixel electrode under the hydrophobic surface, wherein the pixel electrode has a substantially U-shape. A thin film transistor is coupled to the pixel electrode and a voltage source. Voltage via the thin film transistor and the voltage source applied to the hydrophobic surface via the pixel electrode causes the hydrophobic surface to become more hydrophobilic to thereby move the second fluid onto the hydrophobic surface to thereby substantially displace the first fluid on the hydrophobic surface.
Abstract translation: 本文公开的主题涉及在诸如电润湿显示装置的有源矩阵显示器中降低像素内的有效电压降。 电润湿显示装置包括多个像素区域，其中每个像素区域包括疏水表面，疏水表面上的第一流体和第二流体，其中第一流体与第二流体不混溶，以及在疏水性表面下的像素电极 表面，其中所述像素电极具有大致U形。 薄膜晶体管耦合到像素电极和电压源。 通过薄膜晶体管和经由像素电极施加到疏水表面的电压源的电压使得疏水表面变得更疏水，从而将第二流体移动到疏水表面上，从而基本上使第一流体在疏水表面上移位。
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公开(公告)号：US10607522B1
公开(公告)日：2020-03-31
申请号：US14980636
申请日：2015-12-28
Applicant: Amazon Technologies, Inc.
Inventor： Steven Ramos Carneiro , Pavel Novoselov
Abstract: A display device includes a first substrate and a second substrate opposite to the first substrate. The display device includes a pixel region on the first substrate. The pixel region includes a plurality of input lines. Each input line is configured to apply an electric potential to a portion of a pixel in the pixel region. The display device includes a memory storing a drive scheme for the display device and a pixel control system. A solution to a cost function for the display device is calculated, such as by the pixel control system. The cost function expresses a performance attribute of the display device. The drive scheme is modified using the solution to the cost function to create a modified drive scheme, and a voltage is applied to one of the plurality of input lines according to the modified drive scheme to drive the display device.
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Patent Agency Ranking
公开(公告)号：US10262601B1
公开(公告)日：2019-04-16
申请号：US14752478
申请日：2015-06-26
Applicant: Amazon Technologies, Inc.
Inventor： Tulasi Sridhar Reddy Guntaka , Pavel Novoselov , Gor Manukyan
Abstract: An electrowetting display device includes a first support plate and a second support plate. The first support plate has rows and columns of pixel walls defining individual electrowetting pixels. A first fluid and a second fluid immiscible with the first fluid are between the first support plate and the second support plate. A sensor is coupled to the second support plate and configured to detect a first intensity of light incident upon the second support plate at a first angle. A controller is configured to displace the first fluid in either a first direction or a second direction based at least in part upon the first intensity of light detected by the sensor.
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公开(公告)号：US10185142B1
公开(公告)日：2019-01-22
申请号：US14976797
申请日：2015-12-21
Applicant: Amazon Technologies, Inc.
Inventor： Gerben Boon , Chiara Cometti , Pavel Novoselov , Lara Tauk
Abstract: An electrowetting element comprising a first fluid and a second fluid immiscible with the first fluid. A support plate comprises a first layer comprising a migration pathway, the first layer comprising a first surface in contact with at least one of the first fluid or the second fluid. A substance is disposed within at least a portion of the migration pathway in the first layer. The substance is distinct from both the first fluid and the second fluid and is configured to reduce migration of at least a component of the first fluid or a component of the second fluid into the migration pathway in the first layer.
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公开(公告)号：US09979407B1
公开(公告)日：2018-05-22
申请号：US14870638
申请日：2015-09-30
Applicant: Amazon Technologies, Inc.
Inventor： Steven Ramos Carneiro , Pavel Novoselov
IPC: G09G5/00 , H03L7/085 , H03L7/181 , G02B26/00 , G09G3/34 , H03L7/089 , H02M1/42 , H05B33/08 , H02M7/04 , H05B37/02
CPC classification number: H03L7/181 , G02B26/005 , G09G3/348 , G09G2310/08 , G09G2330/02 , H02M1/4208 , H02M3/07 , H02M7/04 , H03L7/0891 , H05B33/0809 , H05B33/086 , H05B37/02
Abstract: An apparatus includes a current sensor configured to couple to a power source and to sense a present current draw on the power source by a powered device. A voltage converter is coupled to the current sensor. The voltage converter includes an output line configured to couple to the powered device to provide an output charge to the powered device. The voltage converter is configured to adjust the output charge in relation to the sensed present current draw on the power source.
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公开(公告)号：US09726880B1
公开(公告)日：2017-08-08
申请号：US14582308
申请日：2014-12-24
Applicant: Amazon Technologies, Inc.
Inventor： Pavel Novoselov , Anthony John Slack , Henricus Petronella Maria Derckx , Jozef Elisabeth Aubert
CPC classification number: G02B26/005 , G09G3/2092 , G09G3/348 , G09G2310/0267
Abstract: In a system having a matrix of electrowetting display elements, a column driving system transmits a column voltage signal to an electrode of each electrowetting display element of at least one selected row of n rows of electrowetting display elements. A first row driving system transmits a first row voltage signal to a switchable element associated with each respective electrowetting display element of the selected row. A second row driving system transmits a second row voltage signal to the switchable element associated with each respective electrowetting display element of rows of the n rows of electrowetting display elements. A configuration of respective first and second fluids of the electrowetting display elements of at least one row of the n rows is controlled by selectively transmitting: the first row voltage signal using the first row driving system, and the second row voltage signal, using the second row driving system.
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公开(公告)号：US09589530B1
公开(公告)日：2017-03-07
申请号：US14319737
申请日：2014-06-30
Applicant: Amazon Technologies, Inc.
Inventor： Pavel Novoselov , Jozef Elisabeth Aubert
CPC classification number: G09G3/3433 , G09G3/348 , G09G3/3674 , G09G2300/08 , G09G2310/0267 , G09G2320/0219
Abstract: The patent application relates to a method of controlling a display device including display elements arranged in a matrix with n rows of display elements. The method includes: driving a first row of display elements, with a first output of a driving system being connected to the first row and disconnected from at least one further row of display elements.
Abstract translation: 该专利申请涉及一种控制显示装置的方法，所述显示装置包括以n行显示元件排列成矩阵的显示元件。 该方法包括：驱动第一行显示元件，其中驱动系统的第一输出连接到第一行并与至少另外一行显示元件断开连接。
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