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公开(公告)号：US20230024541A1
公开(公告)日：2023-01-26
申请号：US17787495
申请日：2020-12-17
Applicant: SEEREAL TECHNOLOGIES S.A.
Inventor： Norbert LEISTER , Bo KROLL
IPC: G02F1/1347 , G02F1/1335 , G02F1/13363
Abstract: The invention relates to a light modulation device having pixels. Essentially, the one half of the pixels are reflective and the other half of the pixels are transmissive. The reflective pixels are arranged in alternation with the transmissive pixels in the same substrate plane. The light modulation device also has a backplane, which has transistors and data lines for conducting signals to the pixels. Each pixel is assigned at least one transistor and at least two data lines. The transistors and the data lines of each adjacent pair of a reflective pixel and a transmissive pixel are arranged under the reflective pixel.
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2.发明申请公开(公告)号：US20180259905A1
公开(公告)日：2018-09-13
申请号：US15978916
申请日：2018-05-14
Applicant: SEEREAL TECHNOLOGIES S.A.
Inventor： Enrico ZSCHAU , Armin SCHWERDTNER , Bo KROLL , Alexander SCHWERDTNER
CPC classification number: G03H1/2294 , G03H1/0808 , G03H2001/0833 , G03H2210/30 , G03H2210/452 , G03H2226/05
Abstract: A method for generating video holograms in real time for a holographic playback device comprising at least one light modulator means, into which a scene divided into object points is encoded as an entire hologram and can be seen as a reconstruction from a visibility region, which is located within a periodicity interval of the reconstruction of the video hologram, the visibility region defining a subhologram together with each object point of the scene to be reconstructed, and the entire hologram being generated from a superposition of contributions of subholograms, is characterized in that for each object point the contributions of the subholograms in the entire reconstruction of the scene can be determined from at least one look-up table.
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公开(公告)号：US20210191123A1
公开(公告)日：2021-06-24
申请号：US16757483
申请日：2018-10-17
Applicant: SEEREAL TECHNOLOGIES S.A.
Inventor： Norbert LEISTER , Bo KROLL
IPC: G02B27/01 , G02B27/00 , H04N13/339 , H04N13/383
Abstract: The invention relates to a display device for representing two-dimensional and/or three-dimensional objects or scenes. The display device comprises at least one illumination device for emitting sufficiently coherent light, at least one spatial light modulation device for modulating incident light, and at least one optical system. The at least one optical system is provided for multiple imaging of the at least one spatial light modulation device and for generating virtual viewing windows in accordance with the number of images of the at least one spatial light modulation device. The individual images of the at least one spatial light modulation device are combined with one another as segments and form a field of view. The field of view comprises at least one high-resolution holographic segment and at least one low-resolution holographic segment.
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4.发明申请公开(公告)号：US20200379272A1
公开(公告)日：2020-12-03
申请号：US16901432
申请日：2020-06-15
Applicant: SEEREAL TECHNOLOGIES S.A.
Inventor： Bo KROLL , Norbert LEISTER , Gerald FUTTERER , Robert MISSBACH , Stephan REICHELT
IPC: G02B30/00 , G03H1/22 , G02F1/1343 , G02F1/29 , G02F1/1347 , G03H1/02
Abstract: The invention relates to a light modulation device for a display for representing two- and/or three-dimensional image content or image sequences. The light modulation device comprises a light modulator and a controller. The phase and/or the amplitude of a light wave field, which is substantially collimated, can be varied by means of the light modulator depending on the location of the light modulator. The light modulator can be actuated by means of the control device. According to the invention, in the direction of propagation of the light wave field, at least one diffracting unit is arranged downstream of the light modulator. The diffracting unit has a variable diffracting structure. By means of the diffracting structure, the light wave field varied by the light modulator can be diffracted in a variable and predeterminable manner. Further, the present invention relates to a display and a method for producing a light modulation device.
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公开(公告)号：US20180217554A1
公开(公告)日：2018-08-02
申请号：US15928891
申请日：2018-03-22
Applicant: SEEREAL TECHNOLOGIES S.A.
Inventor： Bo KROLL , Robert MISSBACH , Alexander SCHWERDTNER
Abstract: Disclosed is a holographic display including a spatial light modulator (SLM) with pixels, the SLM pixels being on a substrate, the SLM including circuitry which is on the same substrate as the SLM pixels, the circuitry operable to perform calculations which provide an encoding of the SLM.
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Patent Agency Ranking
公开(公告)号：US20210278694A1
公开(公告)日：2021-09-09
申请号：US17315949
申请日：2021-05-10
Applicant: SEEREAL TECHNOLOGIES S.A.
Inventor： Bo KROLL , Norbert LEISTER , Gerald FUTTERER , Robert MISSBACH , Stephan REICHELT
IPC: G02B30/00 , G02F1/1343 , G02F1/1347 , G02F1/29 , G03H1/02 , G03H1/22
Abstract: The invention relates to a light modulation device for a display for representing two- and/or three-dimensional image content or image sequences. The light modulation device comprises a light modulator and a controller. The phase and/or the amplitude of a light wave field, which is substantially collimated, can be varied by means of the light modulator depending on the location of the light modulator. The light modulator can be actuated by means of the control device. According to the invention, in the direction of propagation of the light wave field, at least one diffracting unit is arranged downstream of the light modulator. The diffracting unit has a variable diffracting structure. By means of the diffracting structure, the light wave field varied by the light modulator can be diffracted in a variable and predeterminable manner. Further, the present invention relates to a display and a method for producing a light modulation device.
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7.发明申请公开(公告)号：US20200301362A1
公开(公告)日：2020-09-24
申请号：US16895108
申请日：2020-06-08
Applicant: SEEREAL TECHNOLOGIES S.A.
Inventor： Enrico ZSCHAU , Armin SCHWERDTNER , Bo KROLL , Alexander SCHWERDTNER
Abstract: A method for generating video holograms in real time for a holographic playback device comprising at least one light modulator means, into which a scene divided into object points is encoded as an entire hologram and can be seen as a reconstruction from a visibility region, which is located within a periodicity interval of the reconstruction of the video hologram, the visibility region defining a subhologram together with each object point of the scene to be reconstructed, and the entire hologram being generated from a superposition of contributions of subholograms, is characterized in that for each object point the contributions of the subholograms in the entire reconstruction of the scene can be determined from at least one look-up table.
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公开(公告)号：US20160202593A1
公开(公告)日：2016-07-14
申请号：US15075870
申请日：2016-03-21
Applicant: SEEREAL TECHNOLOGIES S.A.
Inventor： Bo KROLL , Gerald FUTTERER , Norbert LEISTER , Stephan REICHELT , Ralf HAUSSLER
CPC classification number: G02B27/22 , G02B5/32 , G02B26/08 , G02B27/0093 , G02B27/2214 , G02B27/225 , G02F1/1313 , G02F1/292 , G03H1/02 , G03H1/22 , G03H1/2205 , G03H1/2294 , G03H1/2645 , G03H1/265 , G03H2001/0212 , G03H2001/221 , G03H2001/2223 , G03H2001/2236 , G03H2001/2242 , G03H2001/2292 , G03H2001/2655 , G03H2001/266 , G03H2222/34 , G03H2222/36 , G03H2225/33 , G03H2226/05 , H04N13/305 , H04N13/31 , H04N13/32 , H04N13/322 , H04N13/366
Abstract: For comfortable viewing of a 3-D scene at various viewing angles, a display having a large tracking range for a variable viewer distance is required. A controllable light-influencing element deflects light in coarse steps in a viewer range. Within said steps, the light is deflected by a further controllable light-influencing element continuously or with fine gradation. The light modulation device is suitable in holographic or autostereoscopic displays for guiding the visibility ranges of the image information to be displayed so as to follow the eyes of the viewers.
Abstract translation: 为了在各种视角下舒适地观看3-D场景，需要具有用于可变观看者距离的较大跟踪范围的显示器。 可控的光影响元件在观察者范围内以粗略的步骤偏转光。 在所述步骤中，光被连续地或具有细微等级的另外可控的光影响元件偏转。 光调制装置适用于全息或自动立体显示器，用于引导要显示的图像信息的可视范围，以便跟随观看者的眼睛。
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公开(公告)号：US20230025687A1
公开(公告)日：2023-01-26
申请号：US17957118
申请日：2022-09-30
Applicant: SEEREAL TECHNOLOGIES S.A.
Inventor： Enrico ZSCHAU , Armin SCHWERDTNER , Bo KROLL , Alexander SCHWERDTNER
Abstract: A method for generating video holograms in real time for a holographic playback device comprising at least one light modulator means, into which a scene divided into object points is encoded as an entire hologram and can be seen as a reconstruction from a visibility region, which is located within a periodicity interval of the reconstruction of the video hologram, the visibility region defining a subhologram together with each object point of the scene to be reconstructed, and the entire hologram being generated from a superposition of contributions of subholograms, is characterized in that for each object point the contributions of the subholograms in the entire reconstruction of the scene can be determined from at least one look-up table.
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公开(公告)号：US20220247982A1
公开(公告)日：2022-08-04
申请号：US17595402
申请日：2020-05-14
Applicant: SEEREAL TECHNOLOGIES S.A.
Inventor： Bo KROLL , Norbert LEISTER , Jacob FUGAL , Robert MISSBACH
IPC: H04N9/31
Abstract: The invention relates to a display apparatus which comprises an illumination device for emitting light, a spatial light modulation device for modulating incident light, an optical system and a control device. The optical system is provided for generating at least one image of the spatial light modulation device as a segment, where the optical system further comprises a deflection device for directing the image of the spatial light modulation device to a defined position in the field of view of a user. The control device is coupled to the illumination device and the deflection device and embodied to switch the illumination device on the basis of a control of the deflection device.
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