公开(公告)号：US11109003B2

公开(公告)日：2021-08-31

申请号：US16247865

申请日：2019-01-15

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：US11070774B2

公开(公告)日：2021-07-20

申请号：US16954756

申请日：2018-12-17

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 ,  H04N5/74 ,  G03H1/22

Abstract: A dual-modulation projection system (100) includes a light source (102), a phase modulator (104), an amplitude modulator (106), and a controller (110) having temporal lightfield simulation capabilities (114). The phase modulator (104) spatially modulates a lightfield from the light source (102) to generate an intermediate image on the amplitude modulator (106). The amplitude modulator (106) spatially modulates the intermediate image to form a final image. The controller (110) models the phase state of the phase modulator (104) during transitions between phase modulator frames and generates lightfield simulations of the intermediate image during the transition. The controller (110) utilizes the lightfield simulations to generate and provide sets of amplitude drive values to the amplitude modulator (106) at a faster rate than that at which the phase modulator (104) is capable of switching.

公开(公告)号：US20210218938A1

公开(公告)日：2021-07-15

申请号：US17154694

申请日：2021-01-21

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Martin J. Richards ,  Barret Lippey

IPC: H04N9/31 ,  H04N13/334 ,  H04N13/363 ,  H04N13/356 ,  H04N13/332 ,  H04N13/337 ,  H04N13/359 ,  H04N13/339 ,  H04N13/341 ,  H04N13/351

Abstract: A novel projection system includes first and second light sources (e.g., sets of lasers), a spatial light modulator (SLM) that receives light from the first light source, and a beam steering device that receives light from the second light source and steers the light to highlight regions of the SLM. The SLM then modulates the light from both light sources to generate a highlighted imaging beam which can then be projected on a viewing surface. The highlighted imaging beam can represent a highlighted 2D image or a highlighted left- or right-eye view of a 3D image. The projection system thus improves peak brightness in the displayed highlighted images without incorporating a separate highlight projector or other expensive equipment. Methods for highlighting projected images are also described.

公开(公告)号：US10904496B2

公开(公告)日：2021-01-26

申请号：US16708581

申请日：2019-12-10

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Martin J. Richards ,  Barret Lippey

IPC: H04N9/31 ,  H04N13/334 ,  H04N13/363 ,  H04N13/356 ,  H04N13/332 ,  H04N13/337 ,  H04N13/359 ,  H04N13/339 ,  H04N13/341 ,  H04N13/351

Abstract: A novel projection system includes first and second light sources (e.g., sets of lasers), a spatial light modulator (SLM) that receives light from the first light source, and a beam steering device that receives light from the second light source and steers the light to highlight regions of the SLM. The SLM then modulates the light from both light sources to generate a highlighted imaging beam which can then be projected on a viewing surface. The highlighted imaging beam can represent a highlighted 2D image or a highlighted left- or right-eye view of a 3D image. The projection system thus improves peak brightness in the displayed highlighted images without incorporating a separate highlight projector or other expensive equipment. Methods for highlighting projected images are also described.

公开(公告)号：US10802293B2

公开(公告)日：2020-10-13

申请号：US15927645

申请日：2018-03-21

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Martin J. Richards ,  Wilson Allen ,  Gary D Gomes

IPC: G02B27/22 ,  G02B30/34 ,  H04N13/324 ,  H04N13/334 ,  G02B5/28 ,  G02B26/00 ,  H04N13/363 ,  G02B30/00 ,  G02B30/23

Abstract: Shaped glasses have curved surface lenses with spectrally complementary filters disposed thereon. The filters curved surface lenses are configured to compensate for wavelength shifts occurring due to viewing angles and other sources. Complementary images are projected for viewing through projection filters having passbands that pre-shift to compensate for subsequent wavelength shifts. At least one filter may have more than 3 primary passbands. For example, two filters include a first filter having passbands of low blue, high blue, low green, high green, and red, and a second filter having passbands of blue, green, and red. The additional passbands may be utilized to more closely match a color space and white point of a projector in which the filters are used. The shaped glasses and projection filters together may be utilized as a system for projecting and viewing 3D images.

公开(公告)号：US20200304748A1

公开(公告)日：2020-09-24

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：US10775688B2

公开(公告)日：2020-09-15

申请号：US16267548

申请日：2019-02-05

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Douglas J. Gorny ,  Douglas J. Darrow ,  Craig Todd ,  Martin J. Richards

IPC: G03B21/20 ,  H04N9/31 ,  G02B27/28

Abstract: Projector display systems comprising a light dimmer and first modulator are disclosed. The light dimmer may comprise an adjustable iris, adjustable light sources and/or LCD stack that is capable of lowering the luminance of the light source illuminated the first modulator. 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 light dimmer and first modulator. The display system may render a desired dynamic range for rendering a projected image by a combination of such control signals.

公开(公告)号：US10698302B2

公开(公告)日：2020-06-30

申请号：US16534281

申请日：2019-08-07

Applicant: Dolby Laboratories Licensing Corporation

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

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

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：US10534316B2

公开(公告)日：2020-01-14

申请号：US15960099

申请日：2018-04-23

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Douglas J. Gorny ,  Martin J. Richards

IPC: G03H1/08 ,  G02B26/02 ,  G03B21/28 ,  G03B21/20 ,  G03H1/00 ,  G02B5/30 ,  G02B26/08 ,  H04N9/31 ,  G02B27/09 ,  G02B9/10 ,  G03H1/22 ,  G02B27/28 ,  G02B27/10

Abstract: Dual or multi-modulation display systems are disclosed that comprise projector systems with at least one modulator that may employ non-mechanical beam steering modulation. Many embodiments disclosed herein employ a non-mechanical beam steering and/or polarizer to provide for a highlights modulator.

公开(公告)号：US10534188B2

公开(公告)日：2020-01-14

申请号：US16395424

申请日：2019-04-26

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Duane Scott Dewald ,  Nathan Wainwright ,  Douglas J. Gorny ,  Martin J. Richards

IPC: G03B21/20 ,  H04N9/31 ,  G02B27/09 ,  G02B19/00 ,  G02B27/28 ,  G02B6/00 ,  G03B21/28 ,  G03B21/00

Abstract: Integrating rod modules are disclosed comprising a plurality of single and/or solid integrating rods that are mated together by straps. Such modules tend to comprise a greater length than the single and/or solid integrating rods and provide good illumination to a modulator that light from a light source is transmitted through the integrating rod module. The straps may comprise a material (e.g., glass) that has substantially same or similar thermal characteristics as the integrating rods. The straps may be glued to the integrating rods by a glue having a substantially different (e.g., lower) index of refraction than the integrating rods, so as not to disturb the internal reflectance of the rods. The straps may be reinforced by braces that may allow the integrating rod module to be set within a projection display system at an angle substantially different from horizontal.