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公开(公告)号：US20240346983A1
公开(公告)日：2024-10-17
申请号：US18400609
申请日：2023-12-29
Applicant: Google LLC
Inventor： Aurelien Jean Francois David , Patrick F. Brinkley , Carlin Vieri
IPC: G09G3/32
CPC classification number: G09G3/32 , G09G2310/08 , G09G2330/021
Abstract: A micro-LED driver applies a low baseline power (i.e., a baseline voltage or current) to pre-charge a micro-LED in a nominally-off (i.e., non-light-emitting) state in addition to applying an operating driving power to drive the micro-LED in a light-emitting state. By pre-charging the micro-LED prior to applying the operating driving power, the micro-LED driver significantly decreases the time between application of the operating driving power and onset of emission of light from the micro-LED. In some embodiments, the micro-LED driver applies an operating driving power having multiple phases of current density to reduce the time between application of the operating driving power and onset of emission of light from the micro-LED.
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2.发明申请公开(公告)号：US20210341740A1
公开(公告)日：2021-11-04
申请号：US16942307
申请日：2020-07-29
Applicant: GOOGLE LLC
Inventor： Ozan Cakmakci , Yi Qin , Daniel Corbalan , Benjamin McLaughlin Gallant , Carlin Vieri , Juseok Lee
Abstract: An optical device includes a display that emits light through a polarization grating and then through a field lens toward a lightguide. Display light reflects from lightguide surfaces by total internal reflection (TIR). The display is mounted proximate to the lightguide. The optical device includes a first surface at an eye-side of the optical device and a second surface at a world-side. The optical device includes a first material having a first Abbe number and a second material having a second Abbe number different from the first Abbe number. The polarization grating, the first material, and the second material cause a color correction to light from the display or alter a chromatic aberration of the light from the display. A head mountable frame supports the display and the lightguide including the first and second materials.
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公开(公告)号：US10564715B2
公开(公告)日：2020-02-18
申请号：US15351196
申请日：2016-11-14
Applicant: Google LLC
Inventor： Mark Spitzer , Carlin Vieri , Eric Turner , Behnam Bastani
Abstract: A foveated display system includes a rendering device including at least one graphics processing unit (GPU) to render a foveal region and a peripheral region of a first image, wherein the foveal region has a higher resolution than the peripheral region. The system further includes a display device coupled to the rendering device via at least one physical layer. The display device includes a pixel array and a display controller coupled to the pixel array. The display controller includes a scaling component to upscale the first peripheral region to generate a scaled first peripheral region and a blending component to blend the foveal region with the scaled first peripheral region to generate a second image.
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公开(公告)号：US20250022410A1
公开(公告)日：2025-01-16
申请号：US18902118
申请日：2024-09-30
Applicant: Google LLC
Inventor： Aurelien Jean Francois David , Patrick F. Brinkley , Carlin Vieri
IPC: G09G3/32
Abstract: A micro-LED driver applies a low baseline power (i.e., a baseline voltage or current) to pre-charge a micro-LED in a nominally-off (i.e., non-light-emitting) state in addition to applying an operating driving power to drive the micro-LED in a light-emitting state. By pre-charging the micro-LED prior to applying the operating driving power, the micro-LED driver significantly decreases the time between application of the operating driving power and onset of emission of light from the micro-LED. In some embodiments, the micro-LED driver applies an operating driving power having multiple phases of current density to reduce the time between application of the operating driving power and onset of emission of light from the micro-LED.
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公开(公告)号：US10714027B1
公开(公告)日：2020-07-14
申请号：US16000204
申请日：2018-06-05
Applicant: Google LLC
Inventor： Behnam Bastani , Carlin Vieri
Abstract: Head-mounted displays (HMDs) for virtual reality (VR) provide backlit illumination when the LCD rows corresponding to a non-dominant eye of the viewer are being updated. For example, when a human viewer operates a VR computer in the form of a smartphone with an LCD screen embedded in specialized goggles (e.g., Google Cardboard), the human viewer may specify that his/her right eye is dominant. In this case, the VR computer times the backlit illumination to be activated when the rows of LCD pixels in the field of view of the non-dominant, i.e., left, eye are being updated. When the rows of LCD pixels in the field of view of the dominant, i.e., right eye are being updated, the VR computer deactivates the backlit illumination.
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Patent Agency Ranking
公开(公告)号：US20220310000A1
公开(公告)日：2022-09-29
申请号：US17687020
申请日：2022-03-04
Applicant: GOOGLE LLC
Inventor： Aurelien Jean Francois David , Patrick F. Brinkley , Carlin Vieri
IPC: G09G3/32
Abstract: A micro-LED driver applies a low baseline power (i.e., a baseline voltage or current) to pre-charge a micro-LED in a nominally-off (i.e., non-light-emitting) state in addition to applying an operating driving power to drive the micro-LED in a light-emitting state. By pre-charging the micro-LED prior to applying the operating driving power, the micro-LED driver significantly decreases the time between application of the operating driving power and onset of emission of light from the micro-LED. In some embodiments, the micro-LED driver applies an operating driving power having multiple phases of current density to reduce the time between application of the operating driving power and onset of emission of light from the micro-LED.
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公开(公告)号：US11249312B2
公开(公告)日：2022-02-15
申请号：US16864813
申请日：2020-05-01
Applicant: GOOGLE LLC
Inventor： Ozan Cakmakci , Daniel Corbalan , Benjamin McLaughlin Gallant , Carlin Vieri , Juseok Lee
Abstract: An optical device includes a display that emits light toward a lightguide. Display light reflects from lightguide surfaces by total internal reflection (TIR). The display is mounted proximate to the lightguide. The optical device includes a first surface at an eye-side of the optical device and a second surface at a world-side. The optical device includes a first material having a first Abbe number and a second material having a second Abbe number different from the first Abbe number. The first material and the second material cause a color correction to light from the display or alters a chromatic aberration of the light from the display. A head mountable frame supports the display and the lightguide including the first and second materials.
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公开(公告)号：US11862069B2
公开(公告)日：2024-01-02
申请号：US17687020
申请日：2022-03-04
Applicant: GOOGLE LLC
Inventor： Aurelien Jean Francois David , Patrick F. Brinkley , Carlin Vieri
IPC: G09G3/32
CPC classification number: G09G3/32 , G09G2310/08 , G09G2330/021
Abstract: A micro-LED driver applies a low baseline power (i.e., a baseline voltage or current) to pre-charge a micro-LED in a nominally-off (i.e., non-light-emitting) state in addition to applying an operating driving power to drive the micro-LED in a light-emitting state. By pre-charging the micro-LED prior to applying the operating driving power, the micro-LED driver significantly decreases the time between application of the operating driving power and onset of emission of light from the micro-LED. In some embodiments, the micro-LED driver applies an operating driving power having multiple phases of current density to reduce the time between application of the operating driving power and onset of emission of light from the micro-LED.
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公开(公告)号：US20210341739A1
公开(公告)日：2021-11-04
申请号：US16864813
申请日：2020-05-01
Applicant: GOOGLE LLC
Inventor： Ozan Cakmakci , Daniel Corbalan , Benjamin McLaughlin Gallant , Carlin Vieri , Juseok Lee
Abstract: An optical device includes a display that emits light toward a lightguide. Display light reflects from lightguide surfaces by total internal reflection (TIR). The display is mounted proximate to the lightguide. The optical device includes a first surface at an eye-side of the optical device and a second surface at a world-side. The optical device includes a first material having a first Abbe number and a second material having a second Abbe number different from the first Abbe number. The first material and the second material cause a color correction to light from the display or alters a chromatic aberration of the light from the display. A head mountable frame supports the display and the lightguide including the first and second materials.
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公开(公告)号：US10475370B2
公开(公告)日：2019-11-12
申请号：US15135944
申请日：2016-04-22
Applicant: GOOGLE LLC
Inventor： Mark Spitzer , Carlin Vieri
IPC: G09G5/36 , G09G3/20 , G09G5/393 , G09G3/00 , G06F3/01 , G06T19/00 , G09G3/3266 , G09G3/3275
Abstract: A display system includes a display panel having an input to receive pixel data, the pixel data comprising a plurality of pixel values, an array of pixels partitioned into a foveal region and at least one peripheral region, and an array controller to group pixels in the at least one peripheral region into subsets of at least two pixels and to control each subset using a corresponding single pixel value from the plurality of pixel values. The display system further may include a rendering system to foveally render a display image based on the locations of the foveal region and the at least one peripheral regions, wherein for each row of the display image having pixels within at least one of the peripheral region, a number of pixel values represented in the pixel data for the row is less than a number of pixels in the row.
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