公开(公告)号：US20190129295A1

公开(公告)日：2019-05-02

申请号：US16306780

申请日：2017-04-19

Applicant: Appotronics Corporation Limited

Inventor： Yi Li ,  Fei Hu ,  Zuqiang Guo

IPC: G03B21/28 ,  G03B21/00 ,  H04N9/31

Abstract: A projection system has a light source, a spatial light modulator, a light recycling system, and a lens assembly. The light source emits source light toward the spatial light modulator. The spatial light modulator modulates, according to an image signal, light incident on the spatial light modulator, so as to form projection light and non-projection light. The light recycling system receives at least a portion of the non-projection light, and guides the at least a portion of the non-projection light toward the spatial light modulator. The lens assembly receives and emits the projection light to form a projection image. The projection system of the present disclosure enables efficient use of non-projection light.

公开(公告)号：US10139713B2

公开(公告)日：2018-11-27

申请号：US15564180

申请日：2016-04-05

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Zuqiang Guo ,  Zeqin Wang ,  Fei Hu

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

Abstract: A light source system includes an excitation light source emitting excitation light in at least first and second time intervals; a compensation light source emitting compensation light in at least third time intervals, the compensation light including laser light of at least one color; and a rotating color wheel, including at least first and second regions, the first region generating light of at least two different colors in time sequence under irradiation of the excitation light in the first and second time sequences, and the second region transmitting the compensation light in at least the third time sequence. The light of the at least two different colors includes at least one type of wide-spectrum fluorescence, and the laser compensates for the fluorescence or light split from the fluorescence. The compensation light is directly transmitted without being irradiated upon fluorescent powder, so scattering loss of the compensation light is reduced.

公开(公告)号：US12120468B2

公开(公告)日：2024-10-15

申请号：US17288874

申请日：2019-09-26

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Zuqiang Guo ,  Peng Du ,  Yi Li

IPC: H04N9/31 ,  G02B26/08 ,  G03B21/00 ,  G03B21/20

CPC classification number: H04N9/3152 ,  G02B26/0833 ,  G03B21/008 ,  G03B21/2033 ,  G03B21/2066 ,  G03B21/2073 ,  G03B21/208 ,  H04N9/3161 ,  H04N9/3164

Abstract: A display apparatus and a display system are provided. The display apparatus includes: a narrow-spectrum light source configured to emit narrow-spectrum light in elliptical distribution; a reflection device including a reflection surface for reflecting the narrow-spectrum light to obtain to-be-modulated light; and a light modulation device configured to modulate the to-be-modulated light to obtain image light of an to-be-modulated image. The light modulation device includes a modulation surface configured to receive the to-be-modulated light, the modulating surface is at a preset angle to an optical axis of the to-be-modulated light such that the to-be-modulated light forms a circle light spot on the modulating surface. The narrow-spectrum light complying with the elliptical distribution is incident onto the light modulation device to form a circle light spot, thereby helping the light modulation device to emit image light in circular angular distribution, improving light effect and achieving better image display quality.

公开(公告)号：US11921410B2

公开(公告)日：2024-03-05

申请号：US17621395

申请日：2020-06-24

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Zuqiang Guo ,  Bingke Yang ,  Yi Li

IPC: G02B26/00 ,  G03B21/20

CPC classification number: G03B21/204 ,  G02B26/008 ,  G03B21/2013 ,  G03B21/208

Abstract: A light source system and a display apparatus are provided. The light source system includes first and second light emitting assemblies, a wavelength conversion device, an optical assembly, and a light combining device. The first light emitting assembly generates at least one primary color light. The second light emitting assembly generates excitation light. The wavelength conversion device is at least partially disposed on the optical path of the excitation light, and used for receiving the excitation light and generating corresponding excited light. The optical assembly is disposed on the optical path of the excited light, and used for increasing the amount of optical expansion of the excited light. The light combining device is disposed on the common optical path of the primary color light and the excited light and located behind the optical assembly, and used for combining the primary color light and the excited light.

公开(公告)号：US11669001B2

公开(公告)日：2023-06-06

申请号：US16472272

申请日：2017-06-23

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Yi Li ,  Fei Hu ,  Zuqiang Guo

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

CPC classification number: G03B21/2013 ,  G03B21/005 ,  G03B21/206 ,  G03B21/2073 ,  H04N9/3111

Abstract: A projection display system, including light emitting device, light splitting device, first, second and third light modulators. The light emitting device emits first light and second light in time sequence. The light splitting device splits the first and second light into first and second wavelength range light along first and second optical paths, respectively, and guides part of the second light along the first optical path. The first and second light modulators modulate the light along the first and second optical paths, respectively; the light modulated by the first and second light modulators is combined to obtain third light along third optical path. The third light modulator is in optical path between the light emitting device and the light splitting device and modulates the first and second light from the light emitting device; or the third light modulator is in the third optical path and modulates the third light.

公开(公告)号：US20220113612A1

公开(公告)日：2022-04-14

申请号：US16472272

申请日：2017-06-23

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Yi Li ,  Fei Hu ,  Zuqiang Guo

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

Abstract: A projection display system, including light emitting device, light splitting device, first, second and third light modulators. The light emitting device emits first light and second light in time sequence. The light splitting device splits the first and second light into first and second wavelength range light along first and second optical paths, respectively, and guides part of the second light along the first optical path. The first and second light modulators modulate the light along the first and second optical paths, respectively; the light modulated by the first and second light modulators is combined to obtain third light along third optical path. The third light modulator is in optical path between the light emitting device and the light splitting device and modulates the first and second light from the light emitting device; or the third light modulator is in the third optical path and modulates the third light.

公开(公告)号：US11223806B2

公开(公告)日：2022-01-11

申请号：US17272902

申请日：2019-04-08

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Peng Du ,  Ning Lu ,  Zuqiang Guo ,  Yi Li

IPC: H04N9/31

Abstract: A light source system comprises: an exciting light source for emitting exciting light; a supplemental light source for emitting supplemental light; a wavelength conversion apparatus for converting the wavelength of part of the exciting light and emitting first light; and a guide apparatus comprising a converging lens and a light combining element. The converging lens is used for adjusting a divergence angle of the first light. The light combining element comprises a first region. The supplemental light focuses on the vicinity of the first region, and the supplemental light and the first light emitted from the converging lens are combined with etendue at the light combining element. Light spots of the first light on a surface of the wavelength conversion apparatus form a magnified image at the light combining element by means of the converging lens.

公开(公告)号：US10969674B2

公开(公告)日：2021-04-06

申请号：US16500773

申请日：2017-11-03

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Zuqiang Guo ,  Fei Hu ,  Yi Li

IPC: G03B21/20 ,  H04N9/31 ,  G02B26/04 ,  G02B27/28

Abstract: A display system includes: a light source, a light modulator, a recovery device, and a light intensity adjustment device. The light source emits original light that is incident to the light modulator. The light modulator modulates, on the basis of image data of an image to be displayed, the light incident thereto so as to form image light and non-image light. The recovery device recovers the non-image light, and the recovered non-image light is incident to the light modulator. The light intensity adjustment device adjusts, on the basis of the intensity of the non-image light corresponding to the currently modulated image to be displayed, the intensity of the original light emitted by the light source, thus allowing total intensity of the original light and the recovered non-image light that are incident to the light modulator to be kept consistent in modulation periods for different images to be displayed.

公开(公告)号：US20210084266A1

公开(公告)日：2021-03-18

申请号：US16642763

申请日：2017-12-06

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Fei Hu ,  Zuqiang Guo ,  Peng Du ,  Yi Li

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

Abstract: A projection system, comprising a light modulation device, a light source system and a light offset device. The light source system is used for emitting one or more illumination sub-beams. The light modulation device is used for modulating illumination light according to image data to form image light, the image light being used for displaying an image corresponding to the image data. The light offset device is used for transferring one illumination sub-beam to each zone of a micro-mirror unit by means of a time sequence such that the micro-mirror unit modulates the illumination sub-beam by means of a time sequence to form image light of a pixel corresponding to each zone, wherein each zone corresponds to one pixel of an image.

公开(公告)号：US20210080818A1

公开(公告)日：2021-03-18

申请号：US16772641

申请日：2018-01-31

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Fei Hu ,  Zuqiang Guo ,  Yi Li

IPC: G03B21/604 ,  G03B21/62

Abstract: A projection screen, comprising a screen substrate and a plurality of light reflecting portions, wherein the light reflecting portion is arranged on an incident side of the screen substrate, and has a first surface and a second surface that face different directions, the first surface facing an incident direction of projection light, and the plurality of light reflecting portions are continuously arranged on the screen substrate to form a structure of sawtooth shape, wherein a light absorbing layer is provided on the second surface; and a wavelength-selection filter layer is provided on the first surface, and the wavelength-selection filter layer is configured to reflect the projection light and transmit and absorb at least part of ambient light.