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.

公开(公告)号：US20160004126A1

公开(公告)日：2016-01-07

申请号：US14770885

申请日：2014-02-26

Applicant: SEEREAL TECHNOLOGIES S.A.

Inventor： Norbert LEISTER

IPC: G02F1/1337 ,  G02F1/1343

CPC classification number: G02F1/133723 ,  G02F1/133784 ,  G02F1/133788 ,  G02F1/134309 ,  G02F1/134363 ,  G02F1/1393 ,  G02F1/292 ,  G02F2001/133746 ,  G02F2001/13706 ,  G02F2203/50

Abstract: A phase modulator for polarized light, comprising a first substrate with a first surface and a second substrate with a second surface, a liquid crystal layer between the two substrates and an electrode arrangement. The phase modulator is usable as a variable deflection grating, and liquid crystal materials which are currently conventional are usable for its production. A phase modulator has an out-of-plane angle of the liquid crystal molecules next to the two surfaces whose magnitude is greater than 0 but less than or equal to 45 degrees, and an electrode arrangement controllable such that an in-plane component of the liquid crystal molecule orientation is adjustable in an angle range of up to 180 degrees, and the rotation sense of the liquid crystal molecules next to the first surface is opposite to the rotation sense of the liquid crystal molecules next to the second surface.

Abstract translation: 一种用于偏振光的相位调制器，包括具有第一表面的第一基底和具有第二表面的第二基底，两个基底之间的液晶层和电极装置。 相位调制器可用作可变偏转光栅，目前常规的液晶材料可用于其生产。 相位调制器具有在两个表面之间的液晶分子的面外角度，该两个表面的大小大于0但小于或等于45度，并且电极布置可控制，使得其中的面内分量 液晶分子取向可在180度以下的角度范围内调节，而与第一表面相邻的液晶分子的旋转方向与第二表面旁边的液晶分子的旋转方向相反。

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.

公开(公告)号：US20220229335A1

公开(公告)日：2022-07-21

申请号：US17711207

申请日：2022-04-01

Applicant: SEEREAL TECHNOLOGIES S.A.

Inventor： Bo KROLL ,  Norbert LEISTER ,  Gerald FUTTERER ,  Robert MISSBACH ,  Stephan REICHELT

IPC: G02F1/1343 ,  G02F1/1347 ,  G02F1/29 ,  G03H1/02 ,  G03H1/22 ,  G02B30/20 ,  G02B30/00

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.

公开(公告)号：US20190227492A1

公开(公告)日：2019-07-25

申请号：US16317328

申请日：2017-07-12

Applicant: SEEREAL TECHNOLOGIES S.A.

Inventor： Bo KROLL ,  Norbert LEISTER

IPC: G03H1/26 ,  G02B27/00 ,  G02B5/30 ,  G02B5/18 ,  G03H1/02 ,  G09G3/00 ,  G09G3/02

Abstract: The invention relates to a display device, in particular a head-mounted display or a head-up display, for representing a two-dimensional and/or three-dimensional scene. The display device comprises a spatial light modulator device having pixels, and a beam offset device. The spatial light modulator device is illuminatable with light. The beam offset device is configured to be controllable in such a way that the light modulated by the pixels of the spatial light modulator device is laterally displaceable by less than one pixel extent.

公开(公告)号：US20190121291A1

公开(公告)日：2019-04-25

申请号：US16301839

申请日：2017-05-17

Applicant: SEEREAL TECHNOLOGIES S.A.

Inventor： Norbert LEISTER ,  Ralf HAUSSLER ,  Gerald FUTTERER

IPC: G03H1/08 ,  G03H1/16 ,  G03H1/22

Abstract: The invention relates to a method for generating holograms for encoding in a spatial light modulation device for a holographic display for representing a two- and/or three-dimensional scene. The two- and/or three-dimensional scene is decomposed into object points and encoded in a hologram, which is subdivided into subholograms, in the spatial light modulation device. The object points of the scene are encoded into encoding regions on the spatial light modulation device. A size and/or shape of the encoding region is selected in relation to a size and/or shape of a subhologram, assigned to the encoding region, in such a way that crosstalk of higher diffraction orders in a virtual visibility region is reduced.

公开(公告)号：US20160004219A1

公开(公告)日：2016-01-07

申请号：US14755781

申请日：2015-06-30

Applicant: SEEREAL TECHNOLOGIES S.A.

Inventor： Norbert LEISTER ,  Gerald FUETTERER ,  Bo KROLL ,  Hagen STOLLE

IPC: G03H1/22 ,  G03H1/08 ,  G02B26/08 ,  G02B5/32 ,  G03H1/32 ,  H04N9/31

CPC classification number: G03H1/2294 ,  G02B5/32 ,  G02B26/0833 ,  G03B21/008 ,  G03H1/0005 ,  G03H1/08 ,  G03H1/2286 ,  G03H1/32 ,  H04N9/3126 ,  H04N9/3161 ,  H04N9/3164 ,  H04N9/3197

Abstract: A projection device is provided for displaying at least one of a two-dimensional and three-dimensional scene or of content. The projection device comprises an illumination device, at least two spatial light modulator devices and an optical system. The illumination device comprises at least one light source for generating a holographic illumination. One of said spatial light modulator devices is designed as spatial light modulator device modulating at least the phase of the light for the holographical generation of illumination patterns. This spatial light modulator device as first spatial light modulator device is followed by a second spatial light modulator device. The optical system is disposed to illuminate the second spatial light modulator device with a predefinable light distribution generated by the first spatial light modulator device.

Abstract translation: 提供了一种用于显示二维和三维场景或内容中的至少一个的投影设备。 投影装置包括照明装置，至少两个空间光调制装置和光学系统。 照明装置包括用于产生全息照明的至少一个光源。 所述空间光调制器件中的一个被设计为空间光调制器装置，至少调制用于全息照射图案的光的相位。 该空间光调制装置作为第一空间光调制装置，其后面是第二空间光调制装置。 光学系统设置成用第一空间光调制器装置产生的可预定的光分布来照亮第二空间光调制器装置。

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.

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.

公开(公告)号：US20190278225A1

公开(公告)日：2019-09-12

申请号：US16356084

申请日：2019-03-18

Applicant: SEEREAL TECHNOLOGIES S.A.

Inventor： Gerald FUTTERER ,  Norbert LEISTER ,  Ralf HAUSSLER ,  Grigory LAZAREV

IPC: G03H1/08 ,  G02B27/12 ,  G02B5/32

Abstract: A three-dimensional light modulator, of which the pixels are combined to form modulation elements. Each modulation element can be coded with a preset discrete value such that three-dimensionally arranged object points can be holographically reconstructed. The light modulator is characterized in that assigned to the pixels of the modulator are beam splitters or beam combiners which, for each modulation element, combine the light wave parts modulated by the pixels by means of refraction or diffraction on the output side to form a common light beam which exits the modulation element in a set propagation direction.