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公开(公告)号：US11971649B2
公开(公告)日：2024-04-30
申请号：US17646813
申请日：2022-01-03
Applicant: APPOTRONICS CORPORATION LIMITED
Inventor： Haixiong Hou , Mengran Wang , Yi Li
CPC classification number: G03B21/208 , G02B30/25 , G03B21/204
Abstract: Provided is a light source device, including: a laser generation unit configured to output laser light; a light modification element disposed in a light guide unit or between the light guide unit and a homogenizing unit and configured to cause an angular distribution of the laser light uniform and continuous; the light guide unit, configured to receive the laser light output by the laser generation unit and guide the laser light to the homogenizing unit; and the homogenizing unit, configured to receive the laser light from the light guide unit, and homogenize and output the laser light.
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公开(公告)号：US11960199B2
公开(公告)日：2024-04-16
申请号：US17597381
申请日：2020-06-28
Applicant: APPOTRONICS CORPORATION LIMITED
IPC: G03B21/60 , G03B21/56 , G03B21/58 , G03B21/62 , G03B21/625
CPC classification number: G03B21/60 , G03B21/56 , G03B21/58 , G03B21/62 , G03B21/625
Abstract: A projection screen includes an optical collimating layer and a surface diffusion layer which are arranged in sequence. A grating absorption layer for absorbing ambient light from various directions except a projection light direction is also provided between the optical collimating layer and the surface diffusion layer. The grating absorption layer includes a plurality of light-absorption ring-shaped units with different radii. The plurality of light-absorption ring-shaped units are arranged in a concentric ring. Each of the light-absorption ring-shaped units consists of a plurality of gratings arranged in the circumferential direction of the concentric ring. By taking a vertical symmetrical center line of the projection screen as a center, in a direction extending along the circumferential direction of the concentric ring to the left side and the right side of the projection screen, the distance between two adjacent gratings in the same light-absorption ring-shaped unit gradually increases.
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公开(公告)号：US11905442B2
公开(公告)日：2024-02-20
申请号：US17299758
申请日：2019-11-18
Applicant: APPOTRONICS CORPORATION LIMITED
Inventor： Jie Wang , Lin Wang , Hongxiu Zhang , Fei Hu , Yi Li
CPC classification number: C09J7/255 , C09J5/00 , C09J7/243 , C09J7/245 , G03B21/56 , C09J2301/312 , C09J2423/046 , C09J2423/106 , C09J2427/006 , C09J2467/006
Abstract: A screen splicing structure is provided. The screen splicing structure includes a substrate layer, a middle adhesive layer, and a surface layer. The substrate layer includes a first substrate and a second substrate. The second substrate is spliced with the first substrate, and a seam is formed at a splicing place. The surface layer and the middle adhesive layer are stacked. The surface layer covers the seam by bonding the middle adhesive layer and the substrate layer. The peeling strength of the surface layer and the substrate layer is greater than or equal to 1,000 gf/inch. A method for forming the screen splicing structure is also provided.
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公开(公告)号：US11892765B2
公开(公告)日：2024-02-06
申请号：US17595800
申请日：2020-05-18
Applicant: APPOTRONICS CORPORATION LIMITED
CPC classification number: G03B21/60 , G02B5/0205 , G03B21/56 , G03B21/58 , G03B21/62 , G03B21/625
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.
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公开(公告)号：US11822221B2
公开(公告)日：2023-11-21
申请号：US17420509
申请日：2019-12-23
Applicant: APPOTRONICS CORPORATION LIMITED
Inventor： Zuqiang Guo , Ning Lu , Yi Li
CPC classification number: G03B21/204 , G02B26/008 , G02B27/141 , G03B21/208 , G03B21/2066 , G03B21/2073
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 to transmit on a path, which is not the exit optical path. Further provided is a projection device comprising the above light source system.
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Patent Agency Ranking
公开(公告)号：US11781915B2
公开(公告)日：2023-10-10
申请号：US16622512
申请日：2017-09-26
Applicant: APPOTRONICS CORPORATION LIMITED
Inventor： Zhengde Zhang , Qiang Lv , Le Pan , Yi Li
IPC: G01J9/00
CPC classification number: G01J9/00
Abstract: A color wheel phase detection method and system, and a projection device. The phase detection system comprises a color wheel (1), a color wheel motor (2) that drives the color wheel (1) to rotate, and a control circuit (3); the color wheel motor (2) is a three-phase motor, and the control circuit (3) comprises a three-phase driving circuit (31) for driving the color wheel motor (2) to operate. The phase detection system further comprises a phase detection device (4) for detecting the three-phase driving circuit (31); when detecting a preset phase, the phase detection device (4) sends a pulse signal to the control circuit (3) to implement color wheel phase detection. Therefore, the effects of low costs, high accuracy, and high reliability are achieved.
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公开(公告)号：US11774843B2
公开(公告)日：2023-10-03
申请号：US17604393
申请日：2020-04-23
Applicant: APPOTRONICS CORPORATION LIMITED
Inventor： Fei Hu , Zuqiang Guo , Ning Lu , Yi Li
CPC classification number: G03B33/08 , G03B21/008 , G03B21/204 , G03B21/208
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.
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公开(公告)号：US11604401B2
公开(公告)日：2023-03-14
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.
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公开(公告)号：US11600238B2
公开(公告)日：2023-03-07
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: A display device includes a light source, a light modulator, and a control apparatus, the light modulator includes a digital micromirror array including micromirrors and is arranged on a light path of light emitted by the light source and configured to modulate the light emitted by the light source based on a target image and luminance of the light source to obtain a grayscale image. The control apparatus is configured to control a driving current of the light source to adjust the luminance of the light source in different periods within a frame image, and to cause a driving current overdrive pulse of the light source during at least one of the periods, so that a display bit depth of the grayscale image increases from n to n+i and the periods correspond to bitplanes of the grayscale image in one-to-one correspondence, i≥1 and i is an integer.
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公开(公告)号：US11586102B2
公开(公告)日：2023-02-21
申请号：US16622478
申请日：2017-09-26
Applicant: APPOTRONICS CORPORATION LIMITED
Inventor： Fei Hu , Zuqiang Guo , Peng Du , Yi Li
Abstract: A light source device, includes an excitation light source for generating excitation light, a light condensing device, and a fluorescent cavity. The fluorescent cavity includes a chamber and a fluorescent layer, the chamber having a light window for allowing light to enter and exit and a bottom wall opposite to the light window. The fluorescent layer is provided on the surface of the bottom wall. The excitation light is concentrated by the light condensing device, and then is incident from the light window to the surface of the fluorescent layer to form a light spot and excite the fluorescent layer to generate a laser. The area of the light window is smaller than the area of the light spot, and the laser can be emitted from the light window.
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