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公开(公告)号：US20220357561A1
公开(公告)日：2022-11-10
申请号：US17867338
申请日：2022-07-18
Applicant: APPOTRONICS CORPORATION LIMITED
Abstract: A fly-eye lens group, a light source device, and a projection apparatus. The fly-eye lens group includes: a first fly-eye lens, a second fly-eye lens, and a third fly-eye lens. The first fly-eye lens is parallel to the second fly-eye lens, the first fly-eye lens is perpendicular to the third fly-eye lens, a double fly-eye structure is formed by the first fly-eye lens and the second fly-eye lens, and the third fly-eye lens and the first fly-eye lens also form a double fly-eye structure. The fly-eye lens group is used for homogenizing incident first excitation light, excited light, and second excitation light.
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Patent Agency Ranking
公开(公告)号：US12003896B2
公开(公告)日：2024-06-04
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
CPC classification number: H04N9/3155 , 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.
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公开(公告)号：US12111563B2
公开(公告)日：2024-10-08
申请号：US17663405
申请日：2022-05-13
Applicant: APPOTRONICS CORPORATION LIMITED
CPC classification number: G03B21/2053 , G02B27/1046 , G03B21/005 , G03B21/2013 , G02B26/008 , G03B21/204
Abstract: The present disclosure provides a display device and a control method thereof. The control method of the display device comprises: obtaining, based on the first light output ratio and the second light output ratio, a first luminous flux set composed of values of luminous fluxes output by a combination path at a current bit depth, and a second luminous flux set composed of values of luminous fluxes output by the combination path at a target bit depth respectively; obtaining, based on the first luminous flux set and the second luminous flux set, a value of a luminous flux to be expanded to achieve the target bit depth at the current bit depth; and adjusting a mapping relationship between the value of each luminous flux to be expanded and a value of a maximum luminous flux in the first luminous flux set corresponding to the current bit depth based on a display bit depth of the display device.
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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：US12177612B2
公开(公告)日：2024-12-24
申请号：US18009692
申请日：2021-06-10
Applicant: Appotronics Corporation Limited
Inventor： Chen-Sheng Gong , Chen Chen , Fei Hu , Xin Yu , Zu-Qiang Guo
Abstract: A projection display system includes a light source assembly, a wavelength adjusting assembly, and a modulation assembly. The light source assembly is configured to emit projected light. The wavelength adjusting assembly is disposed on an optical path of the projected light for adjusting spectrum of the projected light, and a ratio of luminous efficacy of adjusted projected light to luminous efficacy of monochromatic light corresponding to a dominant wavelength of the projected light is greater than a preset ratio, and color gamut of the adjusted projected light satisfies a preset color gamut coverage. The modulation assembly is disposed on a light exiting path of the wavelength adjusting assembly and configured to modulate light emitted by the wavelength adjusting assembly and output corresponding image light to form projection image.
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公开(公告)号：US11893948B2
公开(公告)日：2024-02-06
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
CPC classification number: G09G3/346 , G09G2320/0233 , G09G2320/064
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.
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