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1.发明授权公开(公告)号：US11435657B2
公开(公告)日：2022-09-06
申请号：US17273272
申请日：2019-03-01
Applicant: APPOTRONICS CORPORATION LIMITED
Abstract: Disclosed are a light source system and a control method thereof, as well as a display device and a control method thereof. The light source system includes: an array light source, including M light emitting bodies with independently adjustable brightness; an optical switch disposed on an optical path of light outputted from the array light source, for guiding illumination light emitted by the M light emitting bodies to N sub-regions of a preset illumination region; and a control device for controlling the optical switch to adjust, at a preset frame rate, a direction of the illumination light emitted from each of at least part of the M light emitting bodies, and guiding the illumination light emitted from each of the at least part of the light emitting bodies to a sub-region different from that for one or more image frames previous to the current image frame.
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Patent Agency Ranking
公开(公告)号：US11336874B2
公开(公告)日：2022-05-17
申请号：US17278517
申请日：2019-05-15
Applicant: Appotronics Corporation Limited
IPC: H04N9/31
Abstract: An image display method includes according to image information of a current image frame to be displayed, adjusting the brightness of a first light source (11) having a first light field, and steering light of a second light source (12) to form a second light field, so as to enable the first light field provided by the second light source (11) and the second light field provided by the second light source (12) to work in concert to satisfy displaying of display partitions of the image frame to be displayed. The image display method implements high-dynamic range display of images, and facilitates improvement of dark field detail expression of images to be displayed. Also provided are an image display apparatus and a projection device.
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公开(公告)号：US20220146921A1
公开(公告)日：2022-05-12
申请号：US17277884
申请日：2019-05-15
Applicant: Appotronics Corporation Limited
Abstract: A projection system, comprising a first light source which is an array light source, the first light source being divided into a plurality of illumination areas, and each illumination area may be independently controllable so as to generate a first illumination light field of which the brightness and darkness may be modulated; a second light source comprises an illumination unit and a light steering unit; the light steering unit redistributes illumination light emitted from the illumination unit to generate a second illumination light field of which the brightness and darkness may be modulated, wherein the first and second illumination light fields overlap to generate a combined light field. Also provided is a projection display method. The goal of simultaneously increasing image peak value brightness and lowering image dark field brightness is achieved, and a projection system that has a high contrast ratio is thus obtained.
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公开(公告)号：US11448949B2
公开(公告)日：2022-09-20
申请号：US17277884
申请日：2019-05-15
Applicant: Appotronics Corporation Limited
Abstract: A projection system, comprising a first light source which is an array light source, the first light source being divided into a plurality of illumination areas, and each illumination area may be independently controllable so as to generate a first illumination light field of which the brightness and darkness may be modulated; a second light source comprises an illumination unit and a light steering unit; the light steering unit redistributes illumination light emitted from the illumination unit to generate a second illumination light field of which the brightness and darkness may be modulated, wherein the first and second illumination light fields overlap to generate a combined light field. Also provided is a projection display method. The goal of simultaneously increasing image peak value brightness and lowering image dark field brightness is achieved, and a projection system that has a high contrast ratio is thus obtained.
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公开(公告)号：US12100364B2
公开(公告)日：2024-09-24
申请号：US17593030
申请日：2020-02-26
Applicant: APPOTRONICS CORPORATION LIMITED
CPC classification number: G09G3/36 , G09G3/342 , G09G3/002 , G09G2320/0626 , G09G2360/16
Abstract: A display system includes a light source system including a light source array formed from multiple light source units, and used to emit a light beam, wherein the light source array can be divided into I×J sub-regions; a display unit disposed on an emergent light path of the light source system, and used to modulate a light spot on a surface thereof according to a light spot modulation signal, so as to generate image light; and a dynamic control module for obtaining the light spot modulation signal and a current modulation signal according to an image signal, dynamically updated chromaticity information and maximum brightness information of the light source units, and a correlation curve between a modulation current and brightness, wherein the current modulation signal is used to adjust the light source system.
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公开(公告)号：US20220038666A1
公开(公告)日：2022-02-03
申请号：US17278517
申请日：2019-05-15
Applicant: Appotronics Corporation Limited
IPC: H04N9/31
Abstract: An image display method includes according to image information of a current image frame to be displayed, adjusting the brightness of a first light source (11) having a first light field, and steering light of a second light source (12) to form a second light field, so as to enable the first light field provided by the second light source (11) and the second light field provided by the second light source (12) to work in concert to satisfy displaying of display partitions of the image frame to be displayed. The image display method implements high-dynamic range display of images, and facilitates improvement of dark field detail expression of images to be displayed. Also provided are an image display apparatus and a projection device.
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