公开(公告)号：US20210191249A1

公开(公告)日：2021-06-24

申请号：US17040123

申请日：2018-12-03

Applicant: Appotronics Corporation Limited

Inventor： LIN WANG ,  FEI HU ,  WEI SUN ,  YI LI

IPC: G03B21/602

Abstract: A screen comprises the following layers sequentially stacked from an incident side of projected light rays: a micro-lens layer, a transparent matrix layer, a total internal reflection layer, and a light-absorbing layer. The light-absorbing layer absorbs light passing through the micro-lens layer, the transparent matrix layer and the total internal reflection layer. The micro-lens layer comprises a plurality of micro-lens units. The total internal reflection layer comprises a plurality of microstructure units. The microstructure unit has a lower first flat surface and an upper second flat surface. The first flat surface intersects the second flat surface The micro-lens units and the microstructure units are at least partially arranged in an alternating manner. The projected light rays converged toward the first flat surface exit after being totally reflected by the first flat surface and the second flat surface sequentially.

公开(公告)号：US20220026794A1

公开(公告)日：2022-01-27

申请号：US17471426

申请日：2021-09-10

Applicant: Appotronics Corporation Limited

Inventor： LIN WANG ,  FEI HU ,  WEI SUN ,  YI LI

IPC: G03B21/602 ,  G02B5/02

Abstract: A screen comprises the following layers sequentially stacked from an incident side of projected light rays: a micro-lens layer, a transparent matrix layer, a total internal reflection layer, and a light-absorbing layer. The light-absorbing layer absorbs light passing through the micro-lens layer, the transparent matrix layer, and the total internal reflection layer. The micro-lens layer comprises a plurality of micro-lens units. The total internal reflection layer comprises a plurality of microstructure units. The microstructure unit has a lower first flat surface and an upper second flat surface. The first flat surface intersects the second flat surface. The plurality of microstructure units forms a serrated structure. The micro-lens units and the microstructure units are at least partially arranged in an alternating manner. The projected light rays converged toward the first flat surface exit after being totally internally reflected by the first flat surface and the second flat surface sequentially.

公开(公告)号：US20210373319A1

公开(公告)日：2021-12-02

申请号：US17047031

申请日：2018-12-03

Applicant: Appotronics Corporation Limited

Inventor： DA-YAN DAI ,  HAO ZHOU ,  YI LI

IPC: G02B26/00 ,  G03B21/20

Abstract: A colour wheel assembly (4), a light source system provided with same, and a projection device, a boron nitride coating being arranged on the side of the colour wheel assembly corresponding to a red fluorescent area (301) and the other side being provided with glass powder, and the two sides of a non-red fluorescent area both being provided with a glass powder coating layer. By means of arranging boron nitride material in a position corresponding to a red fluorescent area, as the boron nitride material has good thermal conductivity relative to the glass powder and the crystal structure of the boron nitride is a layered structure, having the effect of effectively blocking light and thereby further reducing the excitation light incident on the red fluorescent powder, attenuation of the red fluorescence under the direct excitation of strong excitation light can be effectively prevented; thus, there is no need to specially adjust the strength of the excitation light rays on the red fluorescent powder, satisfying the excitation of different fluorescent powders whilst keeping the same excitation light circuit, and effectively reducing the problem of the thermal quenching of the red fluorescent powder, such that the system effects are good, the service life is prolonged, and production costs are effectively reduced.

公开(公告)号：US20210134208A1

公开(公告)日：2021-05-06

申请号：US16981383

申请日：2018-11-05

Applicant: Appotronics Corporation Limited

Inventor： XIN YU ,  FEI HU ,  ZU-QIANG GUO ,  YI LI

IPC: G09G3/20 ,  G09G5/10 ,  H04N9/31

Abstract: The display device comprises a light source device, an image pre-processing controller, and a light modulation device. The light source device emits first light and second light, wherein a color gamut range of the second light is wider than that of the first light. The image pre-processing controller acquires a color gamut range of the image to be displayed and a brightness value of each pixel based on original image data of an image data to be displayed, and determines a current color gamut range and controls the light source device to emit first light and the second light corresponding to amount of light required in the current color gamut range. The light modulation device modulates the light emitted by the light source device to generate image light of the image to be displayed based on image data corresponding to the current color gamut range.

公开(公告)号：US20210092333A1

公开(公告)日：2021-03-25

申请号：US16981389

申请日：2018-11-05

Applicant: Appotronics Corporation Limited

Inventor： XIN YU ,  FEI HU ,  ZU-QIANG GUO ,  YI LI

IPC: H04N9/31

Abstract: A display apparatus comprising a light source device, an image data processing module, a light modulation device, and an image synthesizing device. The light source device is configured to emit first light and second light. The image data processing module is configured to receive original image data of an image to be displayed, the original image data of the image to be displayed being image data based on a second color gamut range and comprising original control signal values of m colors of pixels, and the second color gamut range covers a first color gamut range and has a portion beyond the first color gamut range. The image data processing module further maps the original control signal values as m corrected control signal values and n control signal values.

公开(公告)号：US20210294191A1

公开(公告)日：2021-09-23

申请号：US17048570

申请日：2018-12-03

Applicant: Appotronics Corporation Limited

Inventor： ZU-QIANG GUO ,  BING-KE YANG ,  YI LI

IPC: G03B21/20

Abstract: A light source device, comprising an excitation light source, a wavelength conversion element, a transparent substrate, and a light splitter. The wavelength conversion element comprises a wavelength conversion area and a scattering area. The excitation light source emits excitation light that has a first polarization state. The transparent substrate guides first part of the excitation light to the scattering area and guides second part of the excitation light to the light splitter; and the light splitter guides, directly or by means of a guiding device, the second part of the excitation light to the wavelength conversion area. The scattering area scatters the first part of the excitation light and guides the scattered first part of the excitation light to the transparent substrate; and the transparent substrate and the light splitter guide the scattered first excitation light to a light-emitting channel directly or by means of the guiding device.

公开(公告)号：US20210026231A1

公开(公告)日：2021-01-28

申请号：US17040122

申请日：2018-12-03

Applicant: Appotronics Corporation Limited

Inventor： LIN WANG ,  FEI HU ,  YI LI

IPC: G03B21/60 ,  G02B3/00 ,  G02B5/00 ,  G02B5/04 ,  G02B5/02

Abstract: A curved screen (B) comprises the following layers sequentially arranged from inside to outside: a black light-absorbing layer (100), a microstructure array layer (200), and a transparent matrix layer (300). The microstructure array layer (200) consists of a plurality of microstructure units. The microstructure unit is a V-shaped recess (210) consisting of two intersecting inclined surfaces. The microstructure array layer (200) is rotationally symmetrical with respect to a center line of the curved screen (B). Angles of the V-shaped recesses (210) in respective longitudinal cross sections of the curved screen (B) are uniquely determined according to incident angles of light rays from a projector. Also disclosed are a method of arranging microstructures in the curved screen (B) and a projection system comprising the curved screen (B). The curved screen (B) has a higher contrast, improved brightness uniformity and an enlarged field of view.

公开(公告)号：US20210136337A1

公开(公告)日：2021-05-06

申请号：US16981386

申请日：2018-11-05

Applicant: Appotronics Corporation Limited

Inventor： XIN YU ,  FEI HU ,  ZU-QIANG GUO ,  YI LI

IPC: H04N9/31 ,  G02B27/10 ,  G03B21/28 ,  G03B21/20

Abstract: A display apparatus comprises a light source device, an image data processing module, a light modulating device and an image synthesizing device. The light source device is configured to emit first light and second light. The image data processing module is configured to receive original image data of an image to be displayed, wherein the original image data of the image to be displayed is based on image data within a second color gamut range and comprises original control signal values of m colors of each pixel; the second color gamut range covers a first color gamut range and has a portion that exceeds the first color gamut range. The image data processing module is further configured to map the original control signal values of the m colors into m corrected control signal values corresponding to the first light and n corrected control signal values corresponding to the second light.