公开(公告)号：US11726394B2

公开(公告)日：2023-08-15

申请号：US17686421

申请日：2022-03-04

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Juan P. Pertierra ,  Martin J. Richards ,  Barret Lippey

IPC: G03B21/00 ,  G02B26/06 ,  H04N9/31 ,  G02B5/20 ,  G02B5/30 ,  G03B21/20 ,  G02F1/1335 ,  G02F1/1347 ,  G03H1/22

CPC classification number: G03B21/005 ,  G02B5/20 ,  G02B5/3025 ,  G02B26/06 ,  G02F1/13471 ,  G02F1/133502 ,  G02F1/133553 ,  G03B21/006 ,  G03B21/2066 ,  H04N9/315 ,  H04N9/3126 ,  H04N9/3147 ,  G02F1/133512 ,  G02F2201/38 ,  G02F2203/50 ,  G03H1/2294 ,  G03H2001/2218

Abstract: A novel spatial light modulator (SLM) includes a cover glass, and modulation layer, and a plurality of pixel mirrors, and separates unwanted, reflected light from desired, modulated light. In one embodiment, a geometrical relationship exists between the cover glass and the pixel mirrors, such that light that reflects from the cover glass is separated from light that reflects from the pixel mirrors and is transmitted from the SLM. In one example, one of the cover glass or the pixel mirrors is angled with respect to the modulation layer. In another example embodiment, the cover glass has a particular thickness, which introduces destructive interference between light that reflects from the top and bottom surfaces of the cover glass. In another embodiment antireflective coatings are disposed between optical interfaces of the SLM. In another embodiment, light from the SLM is directed through an optical filter to remove unwanted light.

公开(公告)号：US11659146B2

公开(公告)日：2023-05-23

申请号：US17373792

申请日：2021-07-13

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Trevor Davies ,  Martin J. Richards ,  Barret Lippey ,  Juan P. Pertierra ,  Christopher John Orlick ,  Peter Francis Van Kessel

IPC: H04N9/31 ,  G02B27/10 ,  G02B26/06 ,  G03H1/22 ,  H04N5/74

CPC classification number: H04N9/31 ,  G02B26/06 ,  G02B27/1046 ,  G03H1/2294 ,  H04N5/7416 ,  H04N9/3126 ,  H04N9/3197 ,  G03H2225/32

Abstract: A novel projection system includes a light source, a phase modulator, an amplitude modulator, and a controller having temporal lightfield simulation capabilities. The phase modulator spatially modulates a lightfield from the light source to generate an intermediate image on the amplitude modulator. The amplitude modulator spatially modulates the intermediate image to form a final image. The controller models the phase state of the phase modulator during transitions between phase modulator frames and generates lightfield simulations of the intermediate image during the transition. The controller utilizes the lightfield simulations to generate and provide sets of amplitude drive values to the amplitude modulator at a faster rate than that at which the phase modulator is capable of switching.

公开(公告)号：US20230128207A1

公开(公告)日：2023-04-27

申请号：US18087531

申请日：2022-12-22

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Martin J. Richards

IPC: H04N9/31

Abstract: A digital PSF for use in a dual modulation display. The invention allows the use of less than optimal point spread (PSF) functions in the optics between the pre-modulator and primary modulator of a dual modulation projection system. This technique uses multiple halftones per frame in the pre-modulator synchronized with a modified bit sequence in the primary modulator to produce a compensation image that reduces the errors produced by the sub-optimal PSF. The invention includes the application to dual modulation and dual modulated 3D viewing systems.

公开(公告)号：US11619873B2

公开(公告)日：2023-04-04

申请号：US17352907

申请日：2021-06-21

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Juan P. Pertierra ,  Martin J. Richards ,  Barret Lippey ,  Nathan Shawn Wainwright ,  John David Jackson

IPC: G03B21/14 ,  G03B21/16 ,  H04N9/31 ,  G03B21/20 ,  G03B21/00 ,  G03B21/26

Abstract: A novel projection system includes a base signal source, a highlight signal source, a base/highlight destination, and a shared optical element. A base signal provided by the base source and a highlight signal provided by the highlight source are combined by the shared optical element. In a particular embodiment, the base signal source and the highlight signal source each include a light source, a spatial light modulator, and optics, and the base/highlight destination includes optics and a spatial light modulator. In a more particular embodiment, the base signal source and the highlight source provide spatially modulated lightfields to the shared optical element. In another particular embodiment, the base signal and the highlight signal are modulated by the spatial light modulator of the base/highlight destination after being combined.

公开(公告)号：US11606545B2

公开(公告)日：2023-03-14

申请号：US17696745

申请日：2022-03-16

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Ashley Nicole Penna ,  Trevor Davies ,  Martin J. Richards

IPC: H04N13/15 ,  H04N13/257 ,  H04N13/363 ,  H04N9/31 ,  H04N5/235 ,  H04N5/243

Abstract: A system and method for displaying image data comprise receiving 2D video data, generating, from the video data, a first plurality of intensity values of virtual primaries of a first virtual color gamut and a second plurality intensity values of a second virtual color gamut, the first plurality of intensity values being below a luminance threshold and approximating a predefined color gamut and the second plurality of intensity values being above the luminance threshold, converting the first plurality of intensity values into a third plurality of intensity values of predefined primaries of a first projection head of a display system and the second plurality of intensity values into a fourth plurality of intensity values of predefined primaries of a second projection head of the display system, and dynamically adjusting pixel levels of spatial modulators of the display system based on the third plurality and the fourth plurality of intensity values.

公开(公告)号：US20220210389A1

公开(公告)日：2022-06-30

申请号：US17696745

申请日：2022-03-16

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Ashley Nicole Penna ,  Trevor Davies ,  Martin J. Richards

IPC: H04N13/15 ,  H04N13/257 ,  H04N13/363 ,  H04N9/31

Abstract: A system and method for displaying image data comprise receiving 2D video data, generating, from the video data, a first plurality of intensity values of virtual primaries of a first virtual color gamut and a second plurality intensity values of a second virtual color gamut, the first plurality of intensity values being below a luminance threshold and approximating a predefined color gamut and the second plurality of intensity values being above the luminance threshold, converting the first plurality of intensity values into a third plurality of intensity values of predefined primaries of a first projection head of a display system and the second plurality of intensity values into a fourth plurality of intensity values of predefined primaries of a second projection head of the display system, and dynamically adjusting pixel levels of spatial modulators of the display system based on the third plurality and the fourth plurality of intensity values.

公开(公告)号：US20220078401A1

公开(公告)日：2022-03-10

申请号：US17477545

申请日：2021-09-17

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Martin J. Richards

IPC: H04N13/398 ,  H04N13/32 ,  H04N13/324 ,  H04N13/365 ,  G02B27/09 ,  G02B27/10 ,  G02B27/14 ,  G09G3/34 ,  H04N9/31 ,  G02B19/00 ,  G02B5/02 ,  H04N13/363 ,  G09G5/10 ,  G02B5/32 ,  G03B21/00 ,  G03B21/20

Abstract: Light from an array of laser light sources are spread to cover the modulating face of a DMD or other modulator. The spread may be performed, for example, by a varying curvature array of lenslets, each laser light directed at one of the lenslets. Light from neighboring and/or nearby light sources overlap at a modulator. The lasers are energized at different energy/brightness levels causing the light illuminating the modulator to itself be modulated (locally dimmed). The modulator then further modulates the locally dimmed lights to produce a desired image. A projector according to the invention may utilize, for example, a single modulator sequentially illuminated or separate primary color modulators simultaneously illuminated.

公开(公告)号：US11240464B2

公开(公告)日：2022-02-01

申请号：US16847147

申请日：2020-04-13

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Martin J. Richards

IPC: H04N5/74 ,  H04N9/31

Abstract: Dual or multi-modulation display systems comprising a first modulator and a second modulator are disclosed. The first modulator may comprise a plurality of analog mirrors (e.g. MEMS array) and the second modulator may comprise a plurality of mirrors (e.g., DMD array). The display system may further comprise a controller that sends control signals to the first and second modulator. The display system may render highlight features within a projected image by affecting a time multiplexing scheme. In one embodiment, the first modulator may be switched on a sub-frame basis such that a desired proportion of the available light may be focused or directed onto the second modulator to form the highlight feature on a sub-frame rendering basis.

公开(公告)号：US11206380B2

公开(公告)日：2021-12-21

申请号：US17055959

申请日：2019-05-14

Applicant: Dolby Laboratories Licensing Corporation

Inventor： John Frederick Arntsen ,  Juan P. Pertierra ,  Martin J. Richards ,  Barret Lippey ,  Christopher John Orlick ,  Douglas J. Gorny

IPC: H04N9/31

Abstract: A projector controller includes an object detector and control electronics, and is configured to protect audience members from intense light imposing an exclusion zone in front of a projector. The object detector is configured to optically sense a presence of an object in a detection region beneath the exclusion zone and above the audience members. The control electronics is configured to control the projector when the object detector indicates the presence of the object in the detection region. A method for protecting audience members from intense light imposing an exclusion zone in front of an output of a projector includes: (i) optically sensing a presence of an object in a detection region between the exclusion zone and the audience members, and (ii) controlling the projector when the presence of the object is sensed in the detection region.

公开(公告)号：US11122244B2

公开(公告)日：2021-09-14

申请号：US16449647

申请日：2019-06-24

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Martin J. Richards ,  Douglas J. Gorny

IPC: H04N9/31 ,  H04N9/67

Abstract: Systems and methods of rendering DCI-compliant image data on Enhanced Dynamic Range (EDR) display systems are disclosed. One embodiment of an EDR projector system comprises a first modulator and a second modulator. One method for rendering DCI-compliant image data on an EDR projector system comprises: receiving input image data, said image data comprising a plurality of image formats; determining whether the input image data comprises DCI image data; if the input image data comprises DCI image data, then performing dynamic range (DR) processing on the DCI image data; and rendering the dynamic range processed DCI image data on the EDR projector system. One DR processing method is to set the first modulator to a desired luminance level—e.g., fully ON or a ratio of DCI max luminance to the EDR max luminance. In addition, a desired minimum level of luminance may be set for the EDR projector.