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公开(公告)号：US20220224869A1
公开(公告)日：2022-07-14
申请号：US17588146
申请日：2022-01-28
发明人： Fei HU , Chen CHEN , Xin YU , Zuqiang GUO , Yi LI
IPC分类号： H04N9/31 , H04N13/363 , H04N13/398
摘要： 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：US20220221780A1
公开(公告)日：2022-07-14
申请号：US17595800
申请日：2020-05-18
摘要： 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：US20220189419A1
公开(公告)日：2022-06-16
申请号：US17601388
申请日：2020-05-18
发明人： Chen CHEN , Fei HU , Xin YU , Zuqiang GUO , Yi LI
IPC分类号： G09G3/34
摘要： The display device provided in the present application comprises: a light source; a light modulator, comprising a digital micro-lens array comprising a plurality of micro reflective lenses, being arranged on the light path of the light emitted by the light source, and being used for modulating the light emitted by the light source on the basis of a target image and the light emission brightness of the light source in order to obtain a greyscale image; and a control apparatus, used for controlling a drive current of the light source, such that the light emission brightness of the light source is adjusted in separate time periods within the time of one image frame, and the drive current of the light source is overshot in at least some of the time periods in order to increase the display bit depth of the greyscale image from n to n+i (i≥1 and i being an integer), each time period corresponding on a one-to-one basis with a bit plane of the greyscale image.
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公开(公告)号：US20220155667A1
公开(公告)日：2022-05-19
申请号：US17436457
申请日：2020-02-26
发明人： Jie WANG , Hongxiu ZHANG , Wei SUN , Lin WANG , Yi LI
摘要： A wire grid structure and a manufacturing method therefor, and a projection screen are provided. The manufacturing method includes: extruding a molten mixed material body in a melt extruder to a casting roll to form a casting piece; patterning the casting piece by means of an impression roll to form a precursor having a preset wire grid structure pattern, where the precursor is wound on the impression roll and has a first dimension in a height direction; stretching the precursor by a first group of stretching rolls and a second group of stretching rolls in two opposite directions along a direction perpendicular to the height direction to form the wire grid structure, a preset distance being configured between the first group of stretching rolls and the second group of stretching rolls. The wire grid structure has a second dimension in the height direction that is greater than the second dimension.
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公开(公告)号：US20220137497A1
公开(公告)日：2022-05-05
申请号：US17646813
申请日：2022-01-03
发明人： Haixiong HOU , Mengran WANG , Yi LI
摘要： 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：US20220070420A1
公开(公告)日：2022-03-03
申请号：US17418531
申请日：2019-12-23
发明人： Fei HU , Xin YU , Chao WU , Mengmeng XU , Yi LI
摘要： A display system includes: a light source system configured to emit light beams; a scanner configured to scan the light beams on the surface of a spatial light modulator in the form of a light spot, the light spot corresponding to multiple pixels of the spatial light modulator; a spatial light modulator configured to modulate, according to an image modulation signal from a processing and control system, the light spot projected onto the spatial light modulator by the scanner to output image light; a processing and control system configured to output a light source timing modulation signal to a light source modulation device according to an input image signal and output an image modulation signal to the spatial light modulator; and a light source modulation devices configured to adjust the output brightness of the light source system according to the light source timing modulation signal.
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公开(公告)号：US20210325769A1
公开(公告)日：2021-10-21
申请号：US17273250
申请日：2019-03-01
发明人： Zuqiang GUO , Ning LU , Yi LI
摘要： A light source device, including: an excitation light source; a supplementary light source; and a color wheel, the excitation light source emits first color light to the color wheel, the color wheel includes a first light-emitting region and a wavelength conversion region sequentially arranged along circumferential direction, and a supplementary light-emitting region located on inner or outer side of the wavelength conversion region, the first light-emitting region receives the first color light in a first time period and emit it, the wavelength conversion region receives the first color light in a second time period and emit excited light, and the supplementary light source emits, during the second time period, a supplementary light that broadens a color gamut and at least partially overlaps with a spectrum of the excited light, and the supplementary light from the supplementary light-emitting region is combined with the excited light from the wavelength conversion region.
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公开(公告)号：US20190163041A1
公开(公告)日：2019-05-30
申请号：US16320960
申请日：2017-04-28
发明人： Gaofei DENG , Wei LIN , Tao XIE , Yi LI
摘要： Disclosed are a color wheel device and a projector, wherein the color wheel device comprises: a color wheel chamber used for accommodating a color wheel module and provided with an air inlet and an air outlet; a heat exchanger having a heat-exchange core, the heat-exchange core being provided with a first channel for air in the color wheel chamber passing, the air outlet of the color wheel chamber being communicated with a heat-exchange inlet of the first channel, and a heat-exchange outlet of the first channel being communicated with the air inlet of the color wheel chamber to form a closed circulating air duct, wherein the first channel has multiple layers spaced apart from one another, and the space between two adjacent layers of the first channel forms a second channel for outside air passing; and an air propulsion device used for accelerating air flow.
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公开(公告)号：US20240121368A1
公开(公告)日：2024-04-11
申请号：US17627625
申请日：2020-06-28
发明人： Peng DU , Zuqiang GUO , Yi LI
IPC分类号： H04N9/31
CPC分类号： H04N9/3182 , H04N9/312
摘要： Disclosed are a color correction method for a lighting system and a lighting system, the lighting system includes a first laser set (10), a second laser set (20), a driving assembly (30), a wavelength conversion device (40), and a light-combining assembly (50), where the first laser set (10) is used for emitting first primary light; the second laser set (20) is used for emitting second primary light; the driving assembly (30) is used for driving the first laser set (10) to emit the first primary light in a first timing sequence and a second timing sequence, and driving the second laser set (20) to emit the second primary light in the first timing sequence and the second timing sequence; the wavelength conversion device (40) is used for converting the first primary light into converted light in the second timing sequence; and the light-combining assembly (50) is used for combining the first primary light and the second primary light in the first timing sequence, and combining the second primary light and the converted light in the second timing sequence. By means of the above method, the first primary light and the second primary light are combined, such that correction of the first primary light is realized to enable the first primary light to meet a preset color standard.
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公开(公告)号：US20220334457A1
公开(公告)日：2022-10-20
申请号：US17621395
申请日：2020-06-24
发明人： Zuqiang GUO , Bingke YANG , Yi LI
摘要： 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.
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