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公开(公告)号：US11620928B2
公开(公告)日：2023-04-04
申请号：US17532692
申请日：2021-11-22
Applicant: META PLATFORMS TECHNOLOGIES, LLC
Inventor： Edward Buckley , Michael Yee
Abstract: In one embodiment, a computing system may access an image to be displayed on a display. The system may perform compensation operations on the display to compensate for degradation effects of the display. The system may determine a change in an electric signal level associated with one or more light-emitting elements of the display. The change may be caused by the compensation operations. The system may determine a wavelength shift of the light-emitting elements of the display. The wavelength shift may be caused by the change of the electric signal level. The system may adjust values of RGB color components of the pixel values of the image based on the wavelength shift of the light-emitting elements of the display. The system may output the pixel values with the adjusted values of the RGB color components to the display.
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公开(公告)号：US11430371B2
公开(公告)日：2022-08-30
申请号：US17410936
申请日：2021-08-24
Applicant: Meta Platforms Technologies, LLC
Inventor： Michael Yee
Abstract: A display device provides pulse width modulation (PWM) control of pixels using comparator circuits within each pixel. The display device includes a display panel and a row driver connected to the display panel. The row driver includes a counter configured to generate count bit values for subframes of a pulse width modulation (PWM) frame. The display panel includes pixels, each pixel including a comparator circuit and a light emitting diode. The comparator circuit includes a dynamic comparison node. The comparator circuit is configured to generate comparison results at the dynamic comparison node by comparing the count bit values of the subframes and data bit values of a control word defining a brightness level of the pixel for the PWM frame. The LED is configured to turn on or off responsive to the comparison results at the dynamic comparison node.
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公开(公告)号：US12230190B2
公开(公告)日：2025-02-18
申请号：US18052168
申请日：2022-11-02
Applicant: Meta Platforms Technologies, LLC
Inventor： Daniel Henry Morris , Michael Yee
Abstract: A micro-light emitting diode (micro-LED) display backplane includes a plurality of macro-pixels. Each macro-pixel includes: a contiguous two-dimensional (2-D) array of bitcells storing display data bits for driving a set of micro-LEDs of a 2-D array of micro-LEDs; and drive circuits configured to generate, based on the display data bits stored in the contiguous 2-D array of bitcells, pulse-width modulated (PWM) drive signals for driving the set of micro-LEDs of the 2-D array of micro-LEDs. In one example, the plurality of macro-pixels is grouped into a plurality of sub-arrays, where each sub-array of the plurality of sub-arrays includes a set of macro-pixels and a local periphery circuit next to the set of macro-pixels. The local periphery circuit includes, for example, a buffer, a repeater, a clock gating circuit for gating an input clock signal to the sub-array, and/or a sub-array decoder for selecting the sub-array.
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公开(公告)号：US20230136987A1
公开(公告)日：2023-05-04
申请号：US18052168
申请日：2022-11-02
Applicant: Meta Platforms Technologies, LLC
Inventor： Daniel Henry Morris , Michael Yee
Abstract: A micro-light emitting diode (micro-LED) display backplane includes a plurality of macro-pixels. Each macro-pixel includes: a contiguous two-dimensional (2-D) array of bitcells storing display data bits for driving a set of micro-LEDs of a 2-D array of micro-LEDs; and drive circuits configured to generate, based on the display data bits stored in the contiguous 2-D array of bitcells, pulse-width modulated (PWM) drive signals for driving the set of micro-LEDs of the 2-D array of micro-LEDs. In one example, the plurality of macro-pixels is grouped into a plurality of sub-arrays, where each sub-array of the plurality of sub-arrays includes a set of macro-pixels and a local periphery circuit next to the set of macro-pixels. The local periphery circuit includes, for example, a buffer, a repeater, a clock gating circuit for gating an input clock signal to the sub-array, and/or a sub-array decoder for selecting the sub-array.
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公开(公告)号：US11567325B2
公开(公告)日：2023-01-31
申请号：US17067070
申请日：2020-10-09
Applicant: Meta Platforms Technologies, LLC
Inventor： Ilias Pappas , William Thomas Blank , Ramakrishna Chilukuri , Michael Yee
Abstract: Electronic display devices include digital and analog control of pixel intensity. A digital pixel control circuit and an analog pixel control circuit are provided within each pixel. The digital pixel control circuit employs digital PWM techniques to control a number of subframes within each frame during which a driving current is supplied to a light emitting element within the pixel. The analog pixel control circuit controls the level of the driving current supplied to the light emitting element within the pixel during the frame. In one example, the digital pixel control circuit and the analog pixel control circuit may together control pixel intensity with the analog pixel control circuit providing additional in-pixel bits for increased color depth. Alternatively, the digital pixel control circuit may control pixel intensity and the analog pixel control circuit may control non-uniformity compensation.
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Patent Agency Ranking
公开(公告)号：US11743435B2
公开(公告)日：2023-08-29
申请号：US17349769
申请日：2021-06-16
Applicant: Meta Platforms Technologies, LLC
Inventor： Larry Seiler , William Thomas Blank , Warren Andrew Hunt , Michael Yee
CPC classification number: H04N9/3182 , G02B27/0172 , G09G3/32 , H04N9/3185 , G02B2027/0178
Abstract: In an embodiment, a headset display device includes a central processor and multiple projector integrated circuits for eyes of a wearer of the headset display device. Each eye of the wear is associated with at least three projector integrated circuits. Each of the three projector integrated circuits is communicatively coupled to the central processor. Each projector integrated circuit includes a first integrated circuit including a light emitter array having monochrome light emitters of a single color, and a second integrated circuit coupled to the first integrated circuit. The second integrated circuit includes a graphics processor configured to generate transformed image data. The graphics processor is configured to provide the transformed image data to the first integrated circuit. The first integrated circuit is configured to output the transformed image data using the light emitter array.
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公开(公告)号：US20230161165A1
公开(公告)日：2023-05-25
申请号：US18157901
申请日：2023-01-23
Applicant: Meta Platforms Technologies, LLC
Inventor： Ilias Pappas , William Thomas Blank , Ramakrishna Chilukuri , Michael Yee
CPC classification number: G02B27/0172 , G06T7/90 , G06T19/006
Abstract: Electronic display devices include digital and analog control of pixel intensity. A digital pixel control circuit and an analog pixel control circuit are provided within each pixel. The digital pixel control circuit employs digital PWM techniques to control a number of subframes within each frame during which a driving current is supplied to a light emitting element within the pixel. The analog pixel control circuit controls the level of the driving current supplied to the light emitting element within the pixel during the frame. In one example, the digital pixel control circuit and the analog pixel control circuit may together control pixel intensity with the analog pixel control circuit providing additional in-pixel bits for increased color depth. Alternatively, the digital pixel control circuit may control pixel intensity and the analog pixel control circuit may control non-uniformity compensation.
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公开(公告)号：US20220366820A1
公开(公告)日：2022-11-17
申请号：US17875131
申请日：2022-07-27
Applicant: Meta Platforms Technologies, LLC
Inventor： Nilanjan Goswami , Michael Yee , Morgyn Taylor , Patrick Mccleary , Naveen Makineni , Aaron Young , Zhi Zhou , Richard Lawrence Greene , Richard Webb , Cheng Chang
Abstract: In one embodiment, one or more computing systems may determine a first display content to be displayed on a display. The first display content may be associated with one or more frames. The one or more computing systems may determine an optimization operation for the first display content based on one or more first parameters associated with the display or one or more second parameters associated with the one or more frames. The one or more computing systems may adjust the one or more frames based on the optimization operation. The adjusted one or more frames may have at least one optimized attribute comparing to the one or more frames before being adjusted. The one or more computing systems may output the adjusted one or more frames to the display to represent the first display content.
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公开(公告)号：US11942009B2
公开(公告)日：2024-03-26
申请号：US17853561
申请日：2022-06-29
Applicant: Meta Platforms Technologies, LLC
Inventor： Edward Buckley , Michael Yee
CPC classification number: G09G3/002 , G02B27/0172 , G02B27/0176 , G09G3/2003 , G09G3/2044
Abstract: In one embodiment, a computing system may access a first value associated with a first pixel of the first color channel from a first bitmap associated with a first color channel. The system may select a first mask comprising a plurality of first scaling factors based on the first value of the first bitmap. The system may access a second value associated with a second pixel of the second color channel from a second bitmap associated with a second color channel. The system may select a second mask comprising a plurality of second scaling factors based on the second value of the second bitmap. The system may modify each of first and second component values of the corresponding color channel using the corresponding plurality of scaling factors of the corresponding mask. The system may output the modified first and second component values to a display.
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公开(公告)号：US11881143B2
公开(公告)日：2024-01-23
申请号：US17499633
申请日：2021-10-12
Applicant: META PLATFORMS TECHNOLOGIES, LLC
Inventor： Nilanjan Goswami , Eugene Gorbatov , Steve John Clohset , Michael Yee
CPC classification number: G09G3/2007 , G06F3/012 , G06F3/013 , G09G2320/0686 , G09G2330/023 , G09G2354/00
Abstract: In particular embodiments, a computing system of a device may determine a display peak power budget allocated for a display component of the device. The system may determine display information including display workload and display telemetry associated with the display component. The system may determine, in accordance with a display peak power management policy applied to the display peak power budget and the display information, one or more display-controlling parameters for maintaining the display component to operate within the display peak power budget. The system may determine, based on the one or more display-controlling parameters, a plurality of grayscales for a plurality of regions on a display screen of the device. The system may adjust a rendered frame based on the plurality of grayscales and output the adjusted rendered frame on the display screen of the device.
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