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Patent Agency Ranking
公开(公告)号：US12118926B2
公开(公告)日：2024-10-15
申请号：US18341034
申请日：2023-06-26
Applicant: Microsoft Technology Licensing, LLC
Inventor： Charles Walter Boecker , Niranjan Achugundla Puttaswamy , Barry Thompson , Sheethal Somesh Nayak , Jeffrey Neil Margolis , Chuan Pu
IPC: G09G3/32 , G09G3/20 , H01L25/16 , G11C11/419
CPC classification number: G09G3/32 , G09G3/2022 , G09G3/2085 , H01L25/162 , H01L25/167 , G09G2300/0857 , G09G2310/08 , G09G2320/0233 , G09G2320/0626 , G09G2320/0686 , G11C11/419
Abstract: A display device includes a display substrate and a backplane substrate. The display substrate includes an array of micro-LEDs forming individual pixels. The backplane substrate includes a plurality of pixel logic hardware modules. Each pixel logic hardware module includes a local memory element configured to store a multi-bit pixel intensity value of a corresponding micro-LED for an image frame. The backplane substrate is bonded to a backside of the display substrate such that the pixel logic hardware modules are physically aligned behind the array of micro-LEDs and each pixel logic hardware module is electrically connected to a micro-LED of the corresponding pixel.
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公开(公告)号：US10658814B2
公开(公告)日：2020-05-19
申请号：US15791329
申请日：2017-10-23
Applicant: Microsoft Technology Licensing, LLC
Inventor： Algird Michael Gudaitis , Raymond Kirk Price , Niranjan Achugundla Puttaswamy , Sheethal Somesh Nayak , John Allen Tardif
Abstract: A modulated light source comprises a laser diode and a drive circuit coupled operatively to the laser diode. The laser diode is configured to lase upon passing an above-threshold current for an accumulation period. The drive circuit is configured to draw a priming current through the laser diode over a priming period, the priming current being insufficient to cause the laser diode to lase during the priming period, but sufficient to shorten the accumulation period. The drive circuit is further configured to draw the above-threshold current through the laser diode after the priming period, thereby triggering emission from the laser diode following a shortened accumulation period.
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公开(公告)号：US11688333B1
公开(公告)日：2023-06-27
申请号：US17646660
申请日：2021-12-30
Applicant: Microsoft Technology Licensing, LLC
Inventor： Charles Walter Boecker , Niranjan Achugundla Puttaswamy , Barry Thompson , Sheethal Somesh Nayak , Jeffrey Neil Margolis , Chuan Pu
CPC classification number: G09G3/32 , G09G3/2022 , G09G3/2085 , G09G2300/0857 , G09G2320/0233
Abstract: A display device includes a display substrate and a backplane substrate. The display substrate includes an array of micro-LEDs forming individual pixels. The backplane substrate includes a plurality of pixel logic hardware modules. Each pixel logic hardware module includes a local memory element configured to store a multi-bit pixel intensity value of a corresponding micro-LED for an image frame. The backplane substrate is bonded to a backside of the display substrate such that the pixel logic hardware modules are physically aligned behind the array of micro-LEDs and each pixel logic hardware module is electrically connected to a micro-LED of the corresponding pixel.
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公开(公告)号：US10361537B2
公开(公告)日：2019-07-23
申请号：US15820356
申请日：2017-11-21
Applicant: MICROSOFT TECHNOLOGY LICENSING, LLC
Inventor： Algird Michael Gudaitis , Niranjan Puttaswamy , Sheethal Somesh Nayak , Raymond Kirk Price , John Allen Tardif
IPC: H01S5/068 , H01S5/0683 , H04N9/31 , H05B33/08 , G02B27/01
Abstract: A system for dynamically adjusting a bias voltage for a laser diode or a light emitting diode is provided. An output voltage of the laser diode is measured and a level of a supply voltage applied to the laser diode is adjusted to change the bias voltage to the laser diode to manage power usage and avoid saturation of the laser diode. Also, a junction temperature of a laser diode may be estimated by mapping a measured output voltage and known current to device characteristic data based on temperature and the supply voltage adjusted in order to bias the laser diode to compensate for a temperature change. Further, data indicating an intensity level of data to be rendered by the laser diode is used to adjust the second supply voltage to bias the laser diode in advance of rendering the data.
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公开(公告)号：US20190157839A1
公开(公告)日：2019-05-23
申请号：US15820356
申请日：2017-11-21
Applicant: Microsoft Technology Licensing, LLC
Inventor： Algird Michael Gudaitis , Niranjan Puttaswamy , Sheethal Somesh Nayak , Raymond Kirk Price , John Allen Tardif
IPC: H01S5/068 , H01S5/0683 , H05B33/08 , H04N9/31
CPC classification number: H01S5/06808 , G02B27/0172 , G02B2027/0125 , H01S5/0683 , H04N9/3155 , H04N9/3161 , H05B33/0806 , H05B33/0887
Abstract: A system for dynamically adjusting a bias voltage for a laser diode or a light emitting diode is provided. An output voltage of the laser diode is measured and a level of a supply voltage applied to the laser diode is adjusted to change the bias voltage to the laser diode to manage power usage and avoid saturation of the laser diode. Also, a junction temperature of a laser diode may be estimated by mapping a measured output voltage and known current to device characteristic data based on temperature and the supply voltage adjusted in order to bias the laser diode to compensate for a temperature change. Further, data indicating an intensity level of data to be rendered by the laser diode is used to adjust the second supply voltage to bias the laser diode in advance of rendering the data.
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