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公开(公告)号：ES3001533T3
公开(公告)日：2025-03-05
申请号：ES20811430
申请日：2020-11-19
Applicant: BAE SYSTEMS PLC
Inventor： MORANT PAUL STEWART
Abstract: Se describe una fuente de luz dinámica para una pantalla. La fuente de luz dinámica comprende una primera fuente de luz ubicada dentro de un primer dispositivo; y una segunda fuente de luz. El primer dispositivo está configurado para permitir que la luz de la primera fuente de luz salga del primer dispositivo en un primer cono de ángulos y para reflejar la luz incidente fuera del cono de ángulos de vuelta hacia la primera fuente de luz. El primer dispositivo está configurado de manera que la luz inyectada desde la segunda fuente de luz se refleja por la primera fuente de luz en un segundo cono de ángulos sustancialmente coincidente con el primer cono de ángulos y que la luz emitida por el primer dispositivo desde la segunda fuente de luz se atenúa más que la luz emitida por la primera fuente de luz, y una cantidad de atenuación se basa en un rango de potencia dinámica previsto de la fuente de luz dinámica. (Traducción automática con Google Translate, sin valor legal)
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公开(公告)号：AU2014345573A1
公开(公告)日：2016-06-02
申请号：AU2014345573
申请日：2014-11-06
Applicant: BAE SYSTEMS PLC
Inventor： MASON STEPHEN PAUL , MARSHALL IAN , MORANT PAUL STEWART , WILMINGTON IAIN KING
Abstract: A display apparatus and method are provided for at least partially compensating for undesirable image degradation arising from the processing of a generated image prior to display at a viewing surface, such as a combiner. The degradation is such that a viewer perceives a reduction in contrast ratio of a portion of the image content appearing in one or more regions of the field of view of the display, for example against an external scene being viewed through the combiner. In the invention, control means are provided to at least partially compensate for the reduction in contrast ratio by decreasing the resolution of the portion of the generated image content intended for display in the region of perceived reduced contrast ratio prior to input to the processing function.
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公开(公告)号：AU2019204179A1
公开(公告)日：2019-07-04
申请号：AU2019204179
申请日：2019-06-14
Applicant: BAE SYSTEMS PLC
Inventor： MASON STEPHEN PAUL , MARSHALL IAN , MORANT PAUL STEWART , WILMINGTON IAIN KING
Abstract: A display apparatus and method are provided for at least partially compensating for undesirable image degradation arising from the processing of a generated image prior to display at a viewing surface, such as a combiner. The degradation is such that a viewer perceives a reduction in contrast ratio of a portion of the image content appearing in one or more regions of the field of view of the display, for example against an external scene being viewed through the combiner. In the invention, control means are provided to at least partially compensate for the reduction in contrast ratio by decreasing the resolution of the portion of the generated image content intended for display in the region of perceived reduced contrast ratio prior to input to the processing function. Luminance n. t 32a 30t 100% 80% 60% 40% 20% 0%-- - Distance Across Display
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公开(公告)号：GB2523872A
公开(公告)日：2015-09-09
申请号：GB201419790
申请日：2014-11-06
Applicant: BAE SYSTEMS PLC
Inventor： MASON STEPHEN PAUL , MARSHALL IAN , MORANT PAUL STEWART , WILMINGTON IAIN KING
Abstract: A compensation method for a display apparatus is disclosed, the display capable of processing input content having an input resolution to display with a display resolution, the processing being such that, without compensation, for a region of the display screen the content display resolution is lower than the content input resolution, resulting in a reduction in a contrast ratio for content in that region. The method comprises at least partially compensating for the contrast ratio reduction (and associated luminance 42) in advance, by decreasing (reducing) the resolution of input content for display (at the region) on which optical or signal processing may be performed. Content resolution may be decreased by anti-aliasing. The display region may have a lower content resolution than another, different region. A contrast ratio of at least 1.2:1 can be ensured. Compensation can comprise increasing a dimension, size, line width (e.g. to three pixels wide 40) and/or scale of display content. Output luminance 42 may be finely tuned by pixel(s) below maximum level, 44. The method is particularly applicable to partially transparent displays, e.g. comprising a combiner, such as a head up display (HUD) or a helmet-mounted display (HMD) where contrast ratio is affected by surrounding ambient light conditions.
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