公开(公告)号：US20220334460A1

公开(公告)日：2022-10-20

申请号：US17853764

申请日：2022-06-29

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Zuqiang GUO ,  Peng DU ,  Yingxiong XIE

IPC: G03B21/20 ,  G03B21/28

Abstract: Provided is a light source device, including a first light source module configured to output a first light beam; a second light source module configured to output a second light beam, etendue of the first light beam being smaller than etendue of the second light beam; a polarization conversion system configured to receive the first light beam and the second light beam and perform polarization conversion on at least one of the first light beam the second light beam; and an etendue increasing module provided on a light path between the first light source module and the polarization conversion system and configured to increase the etendue of the first light beam. Etendue of the first light beam incident on the PCS increases and the optical power density of the first light beam incident on the PCS decreases, thereby preventing overheating from affecting reliability of the polarization conversion system.

公开(公告)号：US20220180827A1

公开(公告)日：2022-06-09

申请号：US17578841

申请日：2022-01-19

Applicant: APPOTRONICS CORPORATION LIMITED

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

IPC: G09G3/34

Abstract: A display device, including: a light source, used for emitting light source light; a control unit, used for controlling a drive current for the light source, the modulation period of each frame of image to be displayed comprising at least one pulse modulation period, and within the pulse modulation period, the drive current for the light source being an overshoot current so that the average luminous brightness of the light source in the modulation period reaches preset brightness; and a light modulation unit, used for modulating the light source light according to image data of the image to be displayed and the luminous brightness of the light source to obtain a modulated image.

公开(公告)号：US20220082915A1

公开(公告)日：2022-03-17

申请号：US17420509

申请日：2019-12-23

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Zuqiang GUO ,  Ning LU ,  Yi LI

IPC: G03B21/20 ,  G02B27/14 ,  G02B26/00

Abstract: Provided is a light source system, including: an excitation light source for emitting excitation light; a wavelength conversion device provided with a conversion layer which is used to perform wavelength conversion on at least a portion of the excitation light to obtain stimulated light, and to exit the stimulated light and the unconverted excitation light; and a dichroic assembly which is used to guide the stimulated light exited from the conversion layer to propagate along the second optical path, and finally to exit from the light source system along the exit optical path, and to guide at least a portion of the unconverted excitation light exited from the conversion layer (P) to transmit on a path, which is not the exit optical path. Further provided is a projection device comprising the above light source system.

公开(公告)号：US20210218937A1

公开(公告)日：2021-07-15

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：US20210149287A1

公开(公告)日：2021-05-20

申请号：US16964165

申请日：2018-03-28

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Fei HU ,  Zuqiang GUO ,  Yi LI

IPC: G03B21/20 ,  H04N9/31

Abstract: A projection device, comprising a light source device and a control device. The light source device is configured to, according to instructions, emit laser light of first primary color, second primary color, third primary color, and a fourth mixed color fluorescence, respectively. The control device is configured to determine a color gamut range of pixels of an image to be modulated, and transmit the instructions according to the color gamut range to control the light source device to output light required for modulation of the image to be modulated from the laser light of first primary color laser, second primary color, third primary color, and fourth mixed color fluorescence, respectively. The device and method are capable of modulating an image with a wide color gamut, and also save light source energy.

公开(公告)号：US20210011363A1

公开(公告)日：2021-01-14

申请号：US16641320

申请日：2017-12-06

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Zuqiang GUO ,  Peng DU ,  Yi LI

IPC: G03B21/20 ,  G02B26/00 ,  G03B21/00 ,  G02B27/10 ,  G02B27/14

Abstract: A projection system, comprising: a light-emitting apparatus for providing first light and second light emitted in a time sequence; a light-splitting system for dividing the first light into first primary color light and second primary color light, and dividing the second light into two paths of third primary color light; a spatial light modulator, comprising a first region and a second region, wherein the primary color light emitted along a first optical path enters the first region, and the primary color light emitted along a second optical path enters the second region; and an image processing apparatus for dividing, corresponding to the first region and the second region, image signals to be output into two groups, and changing the sequence of at least one of the groups so as to match the time sequence of primary color light received in a corresponding region.

公开(公告)号：US20190354002A1

公开(公告)日：2019-11-21

申请号：US16466631

申请日：2017-11-03

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Fei HU ,  Hongxiu ZHANG ,  Zuqiang GUO ,  Yi LI

IPC: G03B21/625 ,  G02B3/08

Abstract: Provided is a projection screen. The screen includes: a base layer; a cylindrical lens layer formed on a side of the base layer close to a viewer, a Fresnel structure formed on a side of the base layer facing away from the viewer, a reflective layer formed on a side of the Fresnel structure facing away from the base layer, including reflective particles and configured to scatter and reflect, in a solid angle range corresponding to a particle size of the reflective particles, incident light incident from the Fresnel structure, to form reflected light; and a light-absorbing layer formed on a side of the reflective layer facing away from the Fresnel structure. The cylindrical lens layer includes a plurality of cylindrical lenses each having an axis perpendicular to a horizontal direction, and scatters light from the Fresnel structure to increase a viewing angle in the horizontal direction.