公开(公告)号：US20180011365A1

公开(公告)日：2018-01-11

申请号：US15699657

申请日：2017-09-08

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Jerome D. Shields ,  Marek Hadlaw ,  Gopal Erinjippurath

IPC: G02F1/1347 ,  G09G3/34 ,  H04N13/04 ,  G02F1/1335

Abstract: A display provides increased contrast and resolution via first LCD panel energized to generate an image and a second LCD panel configured to increase contrast of the image. The second panel is an LCD panel without color filters and is configured to increase contrast by decreasing black levels of dark portions of images using polarization rotation and filtration. The second LCD panel may have higher resolution than the first LCD panel. A half wave plate and/or film is placed in between the first and the second panel. The panels may be directly illuminated or edge lit, and may be globally or locally dimmed lights that may also include individual control of color intensities for each image or frame displayed.

公开(公告)号：US11889233B2

公开(公告)日：2024-01-30

申请号：US17718160

申请日：2022-04-11

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Christopher John Orlick ,  Jerome D. Shields

IPC: H04N9/31 ,  G06T5/00 ,  G03B21/20 ,  G03B21/16 ,  G02B27/00 ,  G02B27/09

CPC classification number: H04N9/3144 ,  G02B27/0025 ,  G03B21/16 ,  G03B21/206 ,  G03B21/2053 ,  G06T5/003 ,  H04N9/3126 ,  H04N9/3182 ,  H04N9/3194 ,  G02B27/0927

Abstract: A non-transitory computer-readable-medium storing instructions that, when executed by a processor of an image projector, cause the image projector to perform operations including receiving a first image data, determining a thermal state of the image projector based at least in part on a content of the first image data, generating a second image data based on the first image data and the thermal state; emitting light in response to the second image data, and projecting an image onto a screen based on the emitted light, wherein the first image data corresponds to a frame of a video, and the second image data corresponds to the frame of the video.

公开(公告)号：US20230344970A1

公开(公告)日：2023-10-26

申请号：US17796423

申请日：2021-01-28

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Jerome D. Shields

IPC: H04N9/31 ,  H04N5/74 ,  H04N5/52 ,  G06V10/141 ,  G06V10/56 ,  G06V10/60 ,  G03B21/00

CPC classification number: H04N9/3182 ,  H04N5/74 ,  H04N5/52 ,  G06V10/141 ,  G06V10/56 ,  G06V10/60 ,  G03B21/008

Abstract: A projection system and calibration method therefore relate to a light source configured to emit a light in response to an image data, an optical system configured to project the light emitted by the light source; receiving an input associated with a plurality of light values corresponding to a plurality of primary lightfields; converting the input associated with the plurality of light values to a plurality of projector primary color values; determining a gain map based on the plurality Values of projector primary color values; applying the gain map to an image to perform a chromaticity uniformity correction by adjusting levels of the plurality of primary lightfields so that a primary mixture is the same over an image frame, and projecting the image with the optical system in the image frame, wherein the second image is corrected by the gain map.

公开(公告)号：US20240370964A1

公开(公告)日：2024-11-07

申请号：US18293468

申请日：2022-07-25

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Jerome D. Shields

IPC: G06T1/00

Abstract: A digital watermarking method including receiving, by an electronic processor, an original image signal containing a series of original visual images, where the original image signal encoded uses a perceptual quantizer (PQ) luminance level encoding transfer function resulting in PQ luminance steps within the original image signal, and where the PQ luminance steps have varying sizes across a luminance range. The method further includes receiving, by the electronic processor, a watermark image signal including a watermark, and adjusting the strength of the watermark by at least a first weighting factor that is a predetermined first number of PQ luminance steps.

公开(公告)号：US12081917B2

公开(公告)日：2024-09-03

申请号：US17796423

申请日：2021-01-28

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Jerome D. Shields

IPC: H04N9/31 ,  G03B21/00 ,  G06V10/141 ,  G06V10/56 ,  G06V10/60 ,  H04N5/52 ,  H04N5/74

CPC classification number: H04N9/3182 ,  G03B21/008 ,  G06V10/141 ,  G06V10/56 ,  G06V10/60 ,  H04N5/52 ,  H04N5/74

Abstract: A projection system and calibration method therefore relate to a light source configured to emit a light in response to an image data, an optical system configured to project the light emitted by the light source; receiving an input associated with a plurality of light values corresponding to a plurality of primary lightfields; converting the input associated with the plurality of light values to a plurality of projector primary color values; determining a gain map based on the plurality Values of projector primary color values; applying the gain map to an image to perform a chromaticity uniformity correction by adjusting levels of the plurality of primary lightfields so that a primary mixture is the same over an image frame, and projecting the image with the optical system in the image frame, wherein the second image is corrected by the gain map.

公开(公告)号：US11323669B2

公开(公告)日：2022-05-03

申请号：US16697145

申请日：2019-11-26

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Christopher John Orlick ,  Jerome D. Shields

IPC: H04N9/31 ,  G03B21/20 ,  G06T5/00 ,  G02B27/00 ,  G03B21/16 ,  G02B27/09

Abstract: An image projector includes an image data input, a controller, a light source, illumination optics, an imaging spatial light modulator (SLM), and imaging optics. The controller is coupled to receive the image data and is operative to determine a thermal state of the image projector. The controller also adjusts the image data depending on the thermal state of the image projector to generate thermally adjusted image data. The thermal state of facilitates adjustment of the imaging data, because the thermal state is indicative of changes in the lightfield incident on the SLM.