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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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公开(公告)号：US20230065703A1
公开(公告)日：2023-03-02
申请号：US17878902
申请日：2022-08-01
发明人： Shih-Wei Liu , Chi-Tang Hsieh , Yung-Yu Chang , Kuang-Yao Liu , Ming-Ju Chang
IPC分类号： B25J9/16
摘要： A torsion sensor, configured to sense torque generated or received by a joint actuator, is provided. The torsion sensor includes an inner ring, an outer ring, multiple radial bridging portions, multiple overload structures, and multiple strain sensing units. The inner ring and the outer ring are disposed on the same axis and are separated from each other. The torque enables the inner ring and the outer ring to relatively rotate with reference to the axis. The radial bridging portions are disposed at intervals and each radial bridging portion is connected between the inner ring and the outer ring along a radial direction, and each radial bridging portion has at least one depression. Each overload structure extends from the inner ring toward the outer ring along the radial direction and has at least one gap with the outer ring. The strain sensing units are respectively disposed on the radial bridging portions.
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公开(公告)号：US20230062120A1
公开(公告)日：2023-03-02
申请号：US17896102
申请日：2022-08-26
发明人： Yu-Hsiang Deng
IPC分类号： G03B21/20
摘要： An illumination device including a laser light source, a first wavelength selective element, and a wavelength conversion element is provided. The laser light source provides a laser beam. The first wavelength selective element has different transmittances for the laser beam incident at different angles. In a first mode of the illumination device, the laser beam is incident on the first wavelength selective element at a first angle, and the laser beam is reflected by the first wavelength selective element. In a second mode of the illumination device, the laser beam is incident on the first wavelength selective element at a second angle greater than the first angle, and the laser beam penetrates the first wavelength selective element. The wavelength conversion element converts the laser beam into a first converted light beam. A projection device using the illumination device is also provided.
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公开(公告)号：US11587201B2
公开(公告)日：2023-02-21
申请号：US17679129
申请日：2022-02-24
发明人： Jian-Jiun Wu
摘要： An image processing device and an image processing method are provided. The image processing device comprises a receiving module, a interface conversion module, a selecting module, and a controller. The receiving module is configured to receive image signals. The interface conversion module is configured to convert the image signals into converted image signals with a target image interface. The selecting module is configured to generate at least two selected image signals from the converted image signals according to the first selecting signal. The controller is configured to provide the first selecting signal to selecting module. The image processing device generates the composite image by overlaying the at least two selected image signals.
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公开(公告)号：US11573438B2
公开(公告)日：2023-02-07
申请号：US17234809
申请日：2021-04-20
发明人： Ping-Yen Chen , Chung-Yang Fang
IPC分类号： G02F1/13 , G02F1/1347
摘要： An electrically controlled viewing angle switching device including a first electrode, a second electrode, a liquid crystal layer, multiple dye molecules, and a polarizer is provided. The second electrode is disposed opposite to the first electrode. The liquid crystal layer is disposed between the first electrode and the second electrode and has an optical axis. The dye molecules are dispersedly disposed in the liquid crystal layer. Each of the dye molecules is arranged corresponding to the optical axis of the liquid crystal layer. The polarizer is stacked on the liquid crystal layer. The axial direction of the optical axis of the liquid crystal layer is perpendicular to the axial direction of the transmission axis of the polarizer. A display device using the electrically controlled viewing angle switching device is also provided.
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公开(公告)号：US11573421B2
公开(公告)日：2023-02-07
申请号：US17115802
申请日：2020-12-09
发明人： Hsin-Hsiang Lo
摘要： A light field near eye display device including a display element, a micro-lens array, a first lens, and a second lens is provided. The display element provides an image light beam. The micro-lens array is located on a transmission path of the image light beam, and has multiple micro-lenses. The first lens is located on the transmission path of the image light beam, where the micro-lens array is located between the first lens and the display element. The second lens is located on the transmission path of the image light beam, and located between the micro-lens array and the display element. The following formulas are satisfied: ❘ "\[LeftBracketingBar]" 1 f MLA ❘ "\[RightBracketingBar]" > ❘ "\[LeftBracketingBar]" 1 f 1 ❘ "\[RightBracketingBar]" , and ❘ "\[LeftBracketingBar]" 1 f MLA ❘ "\[RightBracketingBar]" > ❘ "\[LeftBracketingBar]" 1 f 2 ❘ "\[RightBracketingBar]" , where fMLA is an equivalent focal length of the micro-lenses, f1 is an equivalent focal length of the first lens, and f2 is an equivalent focal length of the second lens.
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