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公开(公告)号：US20230134505A1
公开(公告)日：2023-05-04
申请号：US17975607
申请日：2022-10-28
发明人： Chi-Fu Liu , Tsung-Hsin Liao , Chun-Li Chen , Hung-Yu Lin
摘要： An illumination system, a projection device, and a projection control method are provided. The illumination system includes a first light-emitting unit, a second light-emitting unit, a third light-emitting unit, a first dichroic element, a second dichroic element, and a control unit. The first light-emitting unit includes a first light-emitting element and a second light-emitting element. The control unit is electrically connected to the first light-emitting unit and configured to switch the illumination system between a high-performance mode and a high-chroma mode, wherein when the illumination system is in the high-performance mode, the control unit controls a current ratio of the second light-emitting element to be greater than a current ratio of the first light-emitting element, and when the illumination system is in the high-chroma mode, the control unit controls the current ratio of the second light-emitting element to be less than the current ratio of the first light-emitting element.
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公开(公告)号：US20230102878A1
公开(公告)日：2023-03-30
申请号：US17954328
申请日：2022-09-28
发明人： Chun-Chieh Wang , Fan-Chieh Chang
IPC分类号： H04N9/31 , G06T7/60 , G01S17/08 , G01S17/89 , G01S7/4865 , G01S7/4915
摘要： A projector and a projection method are provided. The projector includes a control device, a projection optical engine, a distance sensing device, and an image capturing device. The projection optical engine projects a first projection image to a projection surface according to first image data. The distance sensing device senses multiple distance parameters of a projection area. The image capturing device captures the first projection image to obtain a first captured image. The control device performs a keystone correction operation and a leveling correction operation on the first image data. The projection optical engine projects a second projection image to the projection surface according to the corrected first image data. The control device obtains a second captured image including the second projection image through the image capturing device, and analyzes the second captured image to project current projection image size information in the second projection image.
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公开(公告)号：US20230102421A1
公开(公告)日：2023-03-30
申请号：US17953334
申请日：2022-09-27
发明人： Kun-Hong Chen , Po-Yen Wu , Yu-Hsuan Hsieh
IPC分类号： H04N9/31
摘要： A focus adjustment method, adapted for a projection system is provided. The projection system includes a projection target and a projection device having a range-finding array element and a processor. A plurality of range-finding elements in the range-finding array element define a plurality of measurement mesh points. The focus adjustment method includes the following. A plurality of ranging regions in the measurement mesh points are defined, and each ranging region includes more than one measurement mesh point. All the range-finding elements in the ranging regions perform a ranging measurement to generate a plurality of original ranging values. An averaging calculation is performed on the original ranging values corresponding to each ranging region to generate a plurality of average region ranging values. Whether the average region ranging values are within a preset range is determined to generate an optimal ranging value which is used to adjust a lens focus.
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公开(公告)号：US20230101677A1
公开(公告)日：2023-03-30
申请号：US17944191
申请日：2022-09-14
发明人： Wei-Chi Liu , Meng-Syuan Dai
摘要： Provided is a projection device including an illumination system, an optical engine module, a projection lens, at least one first case, at least one second case, and at least one optical element. The at least one first case includes a first flow channel to transmit a first fluid therein. The at least one second case is connected to the at least one first case to form an accommodating space. The at least one optical element is disposed in the accommodating space. Heat generated by the at least one optical element is transferred, by the first fluid, to an outside of the at least one first case.
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公开(公告)号：US11614681B2
公开(公告)日：2023-03-28
申请号：US17368723
申请日：2021-07-06
发明人： Haw-Woei Pan , Kuan-Ta Huang , Yu-Hua Hsieh , Jo-Han Hsu
摘要： An illumination system includes a first light source, a wavelength conversion device, a first light-splitting element, a light-filtering device, and a light-homogenizing element. The first light source provides a first light beam. The wavelength conversion device includes a single wavelength conversion material configured to convert the first light beam into a conversion light beam. The first light-splitting element is disposed on transmission paths of the first light beam and the conversion light beam. The light-filtering device is disposed on the transmission paths of the first light beam and the conversion light beam. The light-homogenizing element is disposed on the transmission paths of the first light beam and the conversion light beam. When the first light beam is transmitted to the light-homogenizing element, the first light beam is not incident on the wavelength conversion device. A projection apparatus including the illumination system is also provided.
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公开(公告)号：US11609367B2
公开(公告)日：2023-03-21
申请号：US17315367
申请日：2021-05-10
发明人： Hui-Chuan Chen , Yu-Fan Chen
IPC分类号： G02F1/1335 , G02B5/22 , F21V8/00
摘要： A light source module includes a light guide plate, a light source, a first color conversion film, at least one optical film and an ink coating. The light guide plate has a first light-emitting surface, a second light-emitting surface opposite to the first light-emitting surface, and a light-incident surface connected between the first light-emitting surface and the second light-emitting surface. The light source is disposed beside the light-incident surface. The first color conversion film is disposed beside the first light-emitting surface. The at least one optical film is disposed beside the light guide plate. The ink coating is disposed on a surface edge or an end surface of at least one of the light guide plate, the first color conversion film, and the at least one optical film, and is configured to allow light to pass therethrough. A display device of the invention is further provided.
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公开(公告)号：US20230080165A1
公开(公告)日：2023-03-16
申请号：US17939872
申请日：2022-09-07
发明人： Wei-Min Chien , Yi-Cheng Hou , Tung-Chou Hu
摘要： The disclosure provides a projection device and a parameter adjustment method thereof. An environment detection value is received from a detection module through a control chip, wherein the environment detection value is at least one of an environment illuminance value, a volume load value and an environment volume value. Then, the environment detection value is compared with a reference range to obtain a corresponding environment mode. Furthermore, a rotation speed of a fan module is adjusted according to an environment load value corresponding to the environment mode. The projection device and the parameter adjustment method thereof provided by the invention make the illuminance and noise output of the projection device more suitable for the operation condition.
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公开(公告)号：US11604402B2
公开(公告)日：2023-03-14
申请号：US17209231
申请日：2021-03-23
发明人： Chun-Lin Chien , Yu-Kuan Chang
摘要： A projection system and a projection method are provided. The projection system includes a first projector and a second projector. The first projector is configured to project a first grid picture onto a projection surface. The second projector is configured to project a second grid picture onto the projection surface. The second grid picture and the first grid picture are blended into a blended projection picture. The first grid picture includes a first overlap region. Grid lines of the first overlap region are displayed in a first color. The second grid picture includes a second overlap region. Grid lines of the second overlap region are displayed in a second color. The first color and the second color are complementary colors. When the blended projection picture is formed, grid lines of an overlap region of the first grid picture and the second grid picture are displayed in a recognition color.
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公开(公告)号：US11604373B2
公开(公告)日：2023-03-14
申请号：US17237028
申请日：2021-04-21
发明人： Yang-Ching Lin , Chung-Yang Fang , Ping-Yen Chen
IPC分类号： G02F1/13 , G02F1/1335 , G02F1/1339 , G02F1/1337
摘要： The invention relates to an electrically controllable viewing angle switch device and a display apparatus. The switch device includes a first substrate, a second substrate, a liquid crystal layer, spacers, a first alignment film, a second alignment film, a first polarizer, and a second polarizer and has a light transmission region. The second substrate is disposed opposite to the first substrate. The liquid crystal layer and the spacers are located between the first substrate and the second substrate in the light transmission region. The spacers are fixed on the first or second substrate. The first polarizer and the second polarizer are disposed on opposite sides of the liquid crystal layer. The axial directions of the transmission axis of the first polarizer and the transmission axis of the second polarizer are parallel or perpendicular to the alignment direction of the first alignment film and the second alignment film.
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公开(公告)号：US20230077284A1
公开(公告)日：2023-03-09
申请号：US17892126
申请日：2022-08-22
发明人： Te-Ying Tsai
摘要： A rotation wheel including a turntable and a motor is provided. The turntable is connected to the motor. The turntable has a first surface used for receiving an incident beam and a second surface opposite to the first surface. The first surface includes a light adjusting surface and a connecting surface. The connecting surface is used to connect the light adjusting surface and the motor. The light adjusting surface is perpendicular to a rotating axis of the motor. At least a part of the connecting surface is neither parallel nor perpendicular to the rotating axis.
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