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    Signal processing device and display device having the same
    1.
    发明授权
    Signal processing device and display device having the same 有权

    公开(公告)号：US10699652B2

    公开(公告)日：2020-06-30

    申请号：US16012131

    申请日：2018-06-19

    Applicant: Japan Display Inc.

    Inventor： Kazunari Tomizawa ,  Kazuhiko Sako ,  Yasuo Saruhashi

    IPC: G09G3/36 ,  G09G5/02 ,  G02F1/13357 ,  H04N9/67 ,  G09G3/34

    Abstract: A signal processing device includes an elongation coefficient calculation circuit receiving a first image signal including a red pixel value, a green pixel value and a blue pixel value, and determining an elongation coefficient value with respect to one frame based on the first image signal, and an image signal processing circuit receiving the first image signal and the elongation coefficient value. The image signal processing circuit includes an image signal conversion circuit converting the first image signal into a second image signal including a red pixel value, a green pixel value, a blue pixel value and a white pixel value, an elongation processing circuit elongating the second image signal based on the elongation coefficient value, an image signal analysis circuit analyzing the elongated second image signal, and an adjustment circuit adjusting the elongated second image signal.

    Display device
    3.
    发明授权
    Display device 有权

    公开(公告)号：US11127361B2

    公开(公告)日：2021-09-21

    申请号：US16502321

    申请日：2019-07-03

    Applicant: Japan Display Inc.

    Inventor： Yasuo Saruhashi ,  Kazunari Tomizawa

    IPC: G09G3/36

    Abstract: According to one embodiment, a display device includes a display panel on which first pixels and second pixels are alternately arranged in the columnar direction, and a display controller configured to input a first image signal and to display an image. The first pixels and the second pixels are arranged such that first sub-pixels are adjacent to third sub-pixels in the columnar direction. The display controller is configured to execute conversion of converting the input first image signal into a second image signal, vary the luminance values of the third sub-pixels in the second image signal based on the luminance values of the third sub-pixels in the first image signal which become unable to be represented in the display panel.

    Image processing device and method for image processing the same
    5.
    发明授权
    Image processing device and method for image processing the same 有权

    公开(公告)号：US10389916B2

    公开(公告)日：2019-08-20

    申请号：US15787762

    申请日：2017-10-19

    Applicant: Japan Display Inc.

    Inventor： Yasuo Saruhashi

    IPC: H04N1/60 ,  G06T7/194 ,  G06T7/11 ,  G06T11/00 ,  G06T11/60

    Abstract: An image processing device including an area dividing circuit configured to divide an image into a plurality of blocks, convert input data showing the image to data including color information, allocate data including the color information into each of the blocks, and output data of the block and image data allocated to each of the blocks, a focus area judgment circuit configured to divide data of the block into a first image area and a second image area, and output the divided area data, and an area dedicated color conversion RGB value calculation circuit configured to compare the image data and the area data, in the case where the image data is included in the first image area, calculate first color conversion data from an intensity coefficient, wherein the image data includes a first value, a second value and a third value.

    Display device
    6.
    发明授权
    Display device 有权

    公开(公告)号：US10026380B2

    公开(公告)日：2018-07-17

    申请号：US15491445

    申请日：2017-04-19

    Applicant: Japan Display Inc.

    Inventor： Yasuo Saruhashi

    IPC: G09G5/10

    Abstract: A display device include a division circuit dividing an input image from a plurality of pixels into a plurality of regions based on the feature quantity of each of the plurality of pixels, a luminance reduction rate calculation circuit calculating the reduction rate of luminance of each region based on the surface area of each of the plurality of regions, an image generation circuit generating output images by correcting the luminance of each of the plurality of pixels based on the reduction rate calculated by the luminance reduction rate calculation circuit, and a correction circuit correcting labels assigned to each of the plurality of pixels by the division circuit. The division circuit is configured to divide the input image by assigning different labels to each region of the plurality of pixels.

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