公开(公告)号：US20220224869A1

公开(公告)日：2022-07-14

申请号：US17588146

申请日：2022-01-28

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Fei HU ,  Chen CHEN ,  Xin YU ,  Zuqiang GUO ,  Yi LI

IPC: H04N9/31 ,  H04N13/363 ,  H04N13/398

Abstract: Provided is a projection display device for displaying a time period of one frame of stereo image as a first modulation period. The projection display device includes: a light source for emitting illumination light; a spatial light modulator for modulating the illumination light according to a plurality of frames of two-dimensional images corresponding to a stereo image to be displayed, and sequentially emitting, within the first modulation period, image light corresponding to the plurality of frames of the two-dimensional images; an angle deflection apparatus arranged in an emergent optical path of the image light and used for deflecting the image light corresponding to the plurality of frames of two-dimensional images to different angles for emission; and a projection screen for displaying the image light deflected by the angle deflection apparatus.

公开(公告)号：US20220221780A1

公开(公告)日：2022-07-14

申请号：US17595800

申请日：2020-05-18

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Shijie LI ,  Lin WANG ,  Fei HU ,  Wei SUN ,  Yi LI

IPC: G03B21/60 ,  G02B5/02

Abstract: A projection screen includes a substrate with a first substrate surface. The first substrate surface includes a first region and a second region adjacent to the first region. Multiple first wire grid bodies extending in a first direction are provided in the first region. Multiple second wire grid bodies extending in the first direction are provided in the second region. Each first wire grid body includes a first contact surface connected to the substrate and a first surface, and a first angle is formed therebetween. The first angles gradually decrease in a direction from the first region to the second region. Each second wire grid body includes a second contact surface connected to the substrate and a third surface, and a third angle is formed therebetween. The third angles gradually increase in a direction from the first region to the second region.

公开(公告)号：US20220189419A1

公开(公告)日：2022-06-16

申请号：US17601388

申请日：2020-05-18

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Chen CHEN ,  Fei HU ,  Xin YU ,  Zuqiang GUO ,  Yi LI

IPC: G09G3/34

Abstract: The display device provided in the present application comprises: a light source; a light modulator, comprising a digital micro-lens array comprising a plurality of micro reflective lenses, being arranged on the light path of the light emitted by the light source, and being used for modulating the light emitted by the light source on the basis of a target image and the light emission brightness of the light source in order to obtain a greyscale image; and a control apparatus, used for controlling a drive current of the light source, such that the light emission brightness of the light source is adjusted in separate time periods within the time of one image frame, and the drive current of the light source is overshot in at least some of the time periods in order to increase the display bit depth of the greyscale image from n to n+i (i≥1 and i being an integer), each time period corresponding on a one-to-one basis with a bit plane of the greyscale image.

公开(公告)号：US20220070420A1

公开(公告)日：2022-03-03

申请号：US17418531

申请日：2019-12-23

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Fei HU ,  Xin YU ,  Chao WU ,  Mengmeng XU ,  Yi LI

IPC: H04N9/31 ,  G03B21/20 ,  G03B21/00

Abstract: A display system includes: a light source system configured to emit light beams; a scanner configured to scan the light beams on the surface of a spatial light modulator in the form of a light spot, the light spot corresponding to multiple pixels of the spatial light modulator; a spatial light modulator configured to modulate, according to an image modulation signal from a processing and control system, the light spot projected onto the spatial light modulator by the scanner to output image light; a processing and control system configured to output a light source timing modulation signal to a light source modulation device according to an input image signal and output an image modulation signal to the spatial light modulator; and a light source modulation devices configured to adjust the output brightness of the light source system according to the light source timing modulation signal.

公开(公告)号：US20220334459A1

公开(公告)日：2022-10-20

申请号：US17762424

申请日：2020-08-31

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Fei HU ,  Peng DU

IPC: G03B21/20 ,  G03B21/28

Abstract: An optical engine unit and a projection system are provided. The optical engine unit includes a light splitting assembly, first and second spatial light modulators, and a light combining assembly. The light splitting assembly splits an illumination beam incident on the light splitting assembly into first and second light beams. The first and second spatial light modulators respectively modulate the first and second light beams to form first and second modulated light beams. The light combining apparatus includes a light combining surface. The light combining surface is a coated surface and configured to combine the first modulated light beam and the second modulated light beam into an emergent light beam and emit the emergent light beam. An incident angle of the first modulated light beam on the light combining surface and that of the second modulated light beam being smaller than a total reflection angle of the light combining surface.

公开(公告)号：US20220197126A1

公开(公告)日：2022-06-23

申请号：US17604393

申请日：2020-04-23

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Fei HU ,  Zuqiang GUO ,  Ning LU ,  Yi LI

IPC: G03B33/08 ,  G03B21/20 ,  G03B21/00

Abstract: Disclosed are a light source system and a display device, including: a first light source configured to emit first light; a second light source configured to emit second light; a wavelength conversion device configured to perform a wavelength conversion on the first light to obtain third light; a first optical splitter having a first area and a second area; and a first light combining device. The first optical splitter moves in timing sequence to make the first area and the second area be sequentially located on a preset light path. A side surface of the first optical splitter is configured to homogenize the first light and the second light that are emitted to the first light combining device; and the first light combining device is configured to guide the first light, the second light, and the third light to exit along a same light path to form illumination light.

公开(公告)号：US20210389657A1

公开(公告)日：2021-12-16

申请号：US17286444

申请日：2019-09-26

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Lin WANG ,  Wei SUN ,  Jie WANG ,  Fei HU ,  Yi LI

IPC: G03B21/60 ,  G02B3/00 ,  G02B5/22

Abstract: A projection screen and a processing method therefor, wherein the projection screen comprises, in sequence from the incident side of projection light, a diffusion layer, a microlens array and a substrate. The inner side of the substrate is provided with a Fresnel microstructure, and part of the surface of the Fresnel microstructure is provided with a reflecting layer while the remaining part of the surface is a light absorbing layer. The microlens array is used for focusing the projection light on the reflecting layer. The reflecting layer is used for reflecting projection light back to the field of view of viewers. Ambient light is mostly absorbed by the light absorbing layer. The settings of the structure and dimension of the microlens array enable the projection light to be only incident onto the reflecting layer of the Fresnel microstructure and the ambient light to be mostly absorbed by the light absorbing layer.

公开(公告)号：US20210286252A1

公开(公告)日：2021-09-16

申请号：US16608405

申请日：2017-11-03

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Fei HU ,  Haixiong HOU ,  Yi LI

IPC: G03B33/08 ,  G03B21/20

Abstract: Provided is a light source system, including: a light emitting device configured to provide first and second light emitted in time sequence; and a light splitting system including: a light splitting device configured to split first light into first and second primary light and split second light into two paths of third primary light, in such a manner that first and second primary light exit respectively along first and second optical paths in a first time-sequence, first primary light exits along the second optical path and second primary light exits along the first optical path in a second time-sequence, and two paths of third primary light exit respectively along the first and second optical paths in a third time-sequence; and at least two light channels respectively disposed on the first and second optical paths. Each light channel is used for first to third primary light to exit in time sequence.

公开(公告)号：US20210208492A1

公开(公告)日：2021-07-08

申请号：US17210353

申请日：2021-03-23

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Fei HU ,  Haixiong HOU ,  Yi LI

IPC: G03B21/20

Abstract: Provided is a light source device, including: a first light source module, a set of lenses, a first light-homogenization component, a first light-combination device, and a wavelength conversion device. The first light source module is configured to emit a first light beam having first wavelength. The set of lenses and the first light-homogenization component are located in propagation path of the first light beam. The set of lenses is configured to converge the first light beam. The first light-homogenization component is configured to homogenize the first light beam. A second light beam formed by homogenization is incident on the first light-combination device, and the first light-combination device is located at a focus position of the set of lenses. The wavelength conversion device is located in propagation path of a third light beam emitted from the first light-combination device and configured to form excited light having second wavelength under excitation.

公开(公告)号：US20200319539A1

公开(公告)日：2020-10-08

申请号：US16099417

申请日：2017-04-21

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Zuqiang GUO ,  Fei HU ,  Yi LI

IPC: G03B21/20 ,  G02B26/00

Abstract: A light source system includes an excitation light unit, a spectral filter unit, a scattering unit, and an excited-light unit. The excitation light unit is configured to emit excitation light. In an embodiment, the spectral filter unit reflects a portion of the excitation light to the scattering unit, the scattering unit scatters the same to generate a first light and a second light, and the spectral filter unit transmits the second light. The spectral filter unit also transmits another part of the excitation light to the excited-light unit, the excited-light unit emits excited light under the illumination thereof, and the spectral filter unit reflects the excited light, so that the spectral filter unit merges and emits the transmitted second light and the reflected excited light. The excitation light is thus split into two paths at the spectral filter unit, and finally emits light by combining excitation light and excited light.