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公开(公告)号：US11665326B2
公开(公告)日：2023-05-30
申请号：US17493870
申请日：2021-10-05
发明人： Chia-Keng Wu
CPC分类号： H04N9/3182 , H04N9/3152 , H04N9/3191 , H04N9/3197 , G03B21/142
摘要： The disclosure provides a projection system and a gamma curve correction method. The projection system includes a projection target and a projection device. A test image is projected on the projection target. The projection device obtains a first gamma curve of the test image by receiving the test image projected on the projection target or sensing a light beam of the projected test image, and judges whether multiple difference values between the first gamma curve and a preset gamma curve is larger than a preset value. The first gamma curve is corrected to generate a second gamma curve when at least one of the difference values is larger than the preset value. The projection system and the gamma curve correction method of the disclosure provides an ideal gamma curve according to the output performance of the use situation.
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公开(公告)号：US11506966B2
公开(公告)日：2022-11-22
申请号：US17463513
申请日：2021-08-31
发明人： Chia-Keng Wu
摘要： The disclosure provides a projection system and a projection method. The projection system includes a screen, a projector, a first posture sensor and a correction controller. The projector projects a display image onto the screen. The first posture sensor is disposed on the screen and configured to measure first angle information of the screen, and the first posture sensor extends along a first direction, and the first direction is parallel to a normal direction of the screen. The correction controller is connected to the projector. The correction controller determines whether to adjust the display image of the projector according to the first angle information. The disclosure further provides a projection method using the projection system. The projection system and projection method of the disclosure have lower hardware requirements and shorter correction processing time.
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公开(公告)号：US20220082919A1
公开(公告)日：2022-03-17
申请号：US17463513
申请日：2021-08-31
发明人： Chia-Keng Wu
摘要： The disclosure provides a projection system and a projection method. The projection system includes a screen, a projector, a first posture sensor and a correction controller. The projector projects a display image onto the screen. The first posture sensor is disposed on the screen and configured to measure first angle information of the screen, and the first posture sensor extends along a first direction, and the first direction is parallel to a normal direction of the screen. The correction controller is connected to the projector. The correction controller determines whether to adjust the display image of the projector according to the first angle information. The disclosure further provides a projection method using the projection system. The projection system and projection method of the disclosure have lower hardware requirements and shorter correction processing time.
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公开(公告)号：US20240251064A1
公开(公告)日：2024-07-25
申请号：US18156404
申请日：2023-01-19
发明人： Chen-Ming Li , Chia-Yen Ou , Chia-Keng Wu , Chien-Chun Peng
IPC分类号： H04N9/31
CPC分类号： H04N9/3194
摘要： A configuration method for projecting apparatus and a projecting apparatus are provided. In the method, at least one first identification pattern is projected, where the first identification pattern records a first configuration data of a target projecting apparatus. A first captured image is obtained, where the first captured image captures the first identification pattern. The first configuration data of the target projecting apparatus is identified from the first captured image. At least one parameter of a projecting apparatus is configured according to the first configuration data. Therefore, the efficiency of configuring projecting apparatuses could be improved.
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公开(公告)号：US20220150455A1
公开(公告)日：2022-05-12
申请号：US17493870
申请日：2021-10-05
发明人： Chia-Keng Wu
IPC分类号： H04N9/31
摘要： The disclosure provides a projection system and a gamma curve correction method. The projection system includes a projection target and a projection device. A test image is projected on the projection target. The projection device obtains a first gamma curve of the test image by receiving the test image projected on the projection target or sensing a light beam of the projected test image, and judges whether multiple difference values between the first gamma curve and a preset gamma curve is larger than a preset value. The first gamma curve is corrected to generate a second gamma curve when at least one of the difference values is larger than the preset value. The projection system and the gamma curve correction method of the disclosure provides an ideal gamma curve according to the output performance of the use situation.
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公开(公告)号：US10091470B2
公开(公告)日：2018-10-02
申请号：US15865280
申请日：2018-01-09
发明人： Chia-Keng Wu , Yen-Yu Chou , Fu-Shan Wang
摘要： Disclosed are a projection device and a light source driving method thereof. The projection device includes a light source module. The light source driving method includes: driving a blue light source of a light source module to output a blue light beam at a first power and a second power respectively, and driving a red light source of the light source module to output a first red light beam at the first power and the second power respectively, wherein a color wheel module of the light source module converts the blue light beam to generate a second red light beam; sensing luminance of the first red light beam and the second red light beam, and correspondingly generating red light luminance information; calculating red light driving parameters of the red light source and the blue light source according to luminance information of the first red light beam and the second red light beam; and controlling, according to the red light driving parameters, electrical signals for driving the blue light source and the red light source, so as to maintain the sum of luminance of the red light beams to be approximate to or equal to a target red light luminance.
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公开(公告)号：US20180199013A1
公开(公告)日：2018-07-12
申请号：US15865280
申请日：2018-01-09
发明人： Chia-Keng Wu , Yen-Yu Chou , Fu-Shan Wang
CPC分类号： H04N9/3117 , G02B26/008 , G02B27/18 , G03B21/567 , H04N9/312
摘要： Disclosed are a projection device and a light source driving method thereof. The projection device includes a light source module. The light source driving method includes: driving a blue light source of a light source module to output a blue light beam at a first power and a second power respectively, and driving a red light source of the light source module to output a first red light beam at the first power and the second power respectively, wherein a color wheel module of the light source module converts the blue light beam to generate a second red light beam; sensing luminance of the first red light beam and the second red light beam, and correspondingly generating red light luminance information; calculating red light driving parameters of the red light source and the blue light source according to luminance information of the first red light beam and the second red light beam; and controlling, according to the red light driving parameters, electrical signals for driving the blue light source and the red light source, so as to maintain the sum of luminance of the red light beams to be approximate to or equal to a target red light luminance.
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