知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

4 条记录 (耗时 0.018 秒)

    Projection type video display device
    1.
    发明授权
    Projection type video display device 有权

    公开(公告)号：US12058478B2

    公开(公告)日：2024-08-06

    申请号：US17421212

    申请日：2019-01-08

    申请人： Maxell, Ltd.

    发明人： Eriko Nagata ,  Naoya Oka ,  Kenichi Iwahara

    IPC分类号： H04N9/31 ,  G03B21/20

    CPC分类号： H04N9/3155 ,  G03B21/2053 ,  H04N9/3182

    摘要： A projection type video display apparatus is configured to include a projection optical system, an image processor, and a controller. The controller is configured to control the image processor to perform a blending process for partially changing the brightness of projection videos. The controller is configured to perform control to set a mode of the projection type video display apparatus to a blending adjustment mode in which a user adjusts the blending process performed by the image processor. In the blending adjustment mode, the controller is configured to perform control to generate a menu image of the blending adjustment menu and display the menu image in the projection video. In the blending adjustment mode, the controller automatically changes a display position of the blending adjustment menu according to a position of a blending adjustment region that is a region to be adjusted by the blending process.

    Video display device and projector
    2.
    发明授权
    Video display device and projector 有权

    公开(公告)号：US12081916B2

    公开(公告)日：2024-09-03

    申请号：US17767623

    申请日：2019-10-10

    申请人： Maxell, Ltd.

    发明人： Hiroshi Aoki ,  Mitsuo Nakajima ,  Satomi Furuhata ,  Eriko Yabe ,  Atsushi Kato ,  Naoya Oka

    IPC分类号： H04N9/31 ,  G09G3/00

    CPC分类号： H04N9/3182 ,  G09G3/002 ,  G09G2320/0606 ,  G09G2320/0626 ,  G09G2354/00

    摘要： A video display device includes performs a first Retinex process on an inputted video and a second Retinex process, which is different from the first Retinex process, on the inputted video. A video composing unit is configured to compose a video processed by the first Retinex processing unit and a video processed by the second Retinex processing unit in accordance with a feature of the inputted video, which is then displayed. In a process of composing the video processed by the first and second Retinex processing units, the video composing unit is configured to perform a process of converting a luminance level for each pixel so that more output luminance levels are assigned to a luminance band having a large frequency distribution to improve visibility of the video. A gain of the luminance level converting process is varied in accordance with an average pixel value level of the inputted video.

    Video display apparatus-apparatus communication
    3.
    发明授权
    Video display apparatus-apparatus communication 有权

    公开(公告)号：US10509614B2

    公开(公告)日：2019-12-17

    申请号：US16064805

    申请日：2015-12-25

    申请人： MAXELL, LTD.

    发明人： Hiroyuki Urata ,  Yohei Kato ,  Naoya Oka

    IPC分类号： G09G5/00 ,  G06F3/14 ,  G09G5/12 ,  H04N21/4363 ,  H04N21/41

    摘要： A technique capable of realizing more suitable image output and the like for an own apparatus is provided with respect to communication among apparatuses in a system including a video display apparatus. A video display apparatus provided with an apparatus-apparatus communication interface (for example, an HDMI) holds own apparatus information. In a case where a video output apparatus is connected to a video input unit of the video display apparatus via a first apparatus-apparatus communication interface and a video output unit of the video display apparatus is connected to an external video display apparatus via a second apparatus-apparatus communication interface, external apparatus information is obtained from the external video display apparatus via the second apparatus-apparatus communication interface, and apparatus information (EDID) is provided to the video output apparatus via the first apparatus-apparatus communication interface.