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    QUANTUM DOT/REMOTE PHOSPHOR DISPLAY SYSTEM IMPROVEMENTS
    11.
    发明申请
    QUANTUM DOT/REMOTE PHOSPHOR DISPLAY SYSTEM IMPROVEMENTS 审中-公开

    公开(公告)号：US20200003394A1

    公开(公告)日：2020-01-02

    申请号：US16568201

    申请日：2019-09-11

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： Ajit Ninan ,  Chun Chi Wan ,  Timo Kunkel ,  Michael Eugene Miller

    IPC: F21V9/40 ,  F21V9/08 ,  G02F1/1335 ,  G02B5/20 ,  G02B5/22 ,  H01L27/32 ,  H01L51/56

    Abstract: A display system comprises light sources configured to emit first light with a first spectral power distribution; light regeneration layers configured to be stimulated by the first light and to convert at least a portion of the first light and recycled light into second light, the second light comprising (a) primary spectral components that correspond to primary colors and (b) secondary spectral components that do not correspond to the primary colors; and notch filter layers configured to receive a portion of the second light and to filter out the secondary spectral components from the portion of the second light. The portion of the second light can be directed to a viewer of the display system and configured to render images viewable to the viewer.

    AMBIENT BLACK LEVEL
    14.
    发明申请
    AMBIENT BLACK LEVEL 有权
    环境黑色

    公开(公告)号：US20150302804A1

    公开(公告)日：2015-10-22

    申请号：US14788396

    申请日：2015-06-30

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： Ajit Ninan ,  Wenhui Jia

    IPC: G09G3/34

    CPC classification number: G09G3/3406 ,  G09G3/3426 ,  G09G2320/0238 ,  G09G2320/0626 ,  G09G2320/0646 ,  G09G2320/066 ,  G09G2360/144

    Abstract: Techniques for operating a display system in a wide range of ambient light conditions are provided. An intensity of ambient light on a display panel may be detected. The display panel may be illuminated by light sources in addition to the ambient light. An individual light source may be individually settable to an individual light output level. If it is determined that the luminance level of the ambient light is above a minimum ambient luminance threshold, an ambient black level may be calculated using the intensity of ambient light. Light output levels of one or more of the light sources may be elevated to first light output levels. Here, the one or more light sources may be designated to illuminate one or more dark portions of an image. The first light output levels may create a new black level equaling the determined ambient black level.

    Abstract translation: 提供了用于在宽范围的环境光条件下操作显示系统的技术。 可以检测显示面板上的环境光的强度。 除了环境光之外，显示面板也可以被光源照亮。 单独的光源可以单独地设置为单独的光输出电平。 如果确定环境光的亮度水平高于最小环境亮度阈值，则可以使用环境光的强度来计算环境黑色电平。 一个或多个光源的光输出电平可以升高到第一光输出电平。 这里，可以指定一个或多个光源来照亮图像的一个或多个暗部分。 第一光输出电平可产生等于所确定的环境黑电平的新黑电平。

    TECHNIQUES FOR DUAL MODULATION DISPLAY WITH LIGHT CONVERSION
    15.
    发明申请
    TECHNIQUES FOR DUAL MODULATION DISPLAY WITH LIGHT CONVERSION 有权
    具有光转换的双调制显示技术

    公开(公告)号：US20150287368A1

    公开(公告)日：2015-10-08

    申请号：US14370115

    申请日：2014-02-13

    Applicant: DOLBY LABORATORIES LICENSING CORPORATION

    Inventor： Ajit Ninan ,  Chun Chi Wan

    IPC: G09G3/36 ,  G09G3/32

    CPC classification number: G09G3/36 ,  G02F2001/133601 ,  G02F2001/133614 ,  G02F2202/36 ,  G09G3/32 ,  G09G3/3413 ,  G09G3/342 ,  G09G3/3426 ,  G09G2310/0237 ,  G09G2320/0233 ,  G09G2320/0242 ,  H05B33/086 ,  H05B33/0866

    Abstract: Techniques for driving a dual modulation display include generating backlight drive signals to drive individually-controllable illumination sources. The illumination sources emit first light onto a light conversion layer. The light conversion layer converts the first light into second light. The light conversion layer can include quantum dots or phosphor materials. Modulation drive signals are generated to determine transmission of the second light through individual subpixels of the display. These modulation drive signals can be adjusted based on one or more light field simulations. The light field simulations can include: (i) a color shift for a pixel based on a point spread function of the illumination sources; (ii) binning difference of individual illumination sources; (iii) temperature dependence of display components on performance; or (iv) combinations thereof.

    Abstract translation: 用于驱动双调制显示器的技术包括产生用于驱动单独可控照明源的背光驱动信号。 照明源将第一光发射到光转换层上。 光转换层将第一光转换成第二光。 光转换层可以包括量子点或磷光体材料。 产生调制驱动信号以确定通过显示器的各个子像素的第二光的透射。 可以基于一个或多个光场模拟来调整这些调制驱动信号。 光场模拟可以包括：（i）基于照明源的点扩散函数的像素的颜色偏移; （ii）单个照明源的合并差异; （iii）显示组件对性能的温度依赖性; 或（iv）其组合。

    Encoding, decoding, and representing high dynamic range images
    16.
    发明授权
    Encoding, decoding, and representing high dynamic range images 有权
    编码，解码和表示高动态范围图像

    公开(公告)号：US09036042B2

    公开(公告)日：2015-05-19

    申请号：US13938795

    申请日：2013-07-10

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： Wenhui Jia ,  Ajit Ninan ,  Arkady Ten ,  Gregory John Ward

    IPC: H04N5/228 ,  H04N9/73 ,  H04N5/46 ,  H04N11/02 ,  G06T9/00 ,  H04N9/67 ,  H04N9/77 ,  H04N5/235 ,  H04N19/169

    CPC classification number: H04N19/124 ,  G06T9/00 ,  H04N5/2355 ,  H04N9/67 ,  H04N9/77 ,  H04N19/136 ,  H04N19/169 ,  H04N19/182 ,  H04N19/186 ,  H04N19/30 ,  H04N19/44 ,  H04N19/50 ,  H04N19/70

    Abstract: Techniques are provided to encode and decode image data comprising a tone mapped (TM) image with HDR reconstruction data in the form of luminance ratios and color residual values. In an example embodiment, luminance ratio values and residual values in color channels of a color space are generated on an individual pixel basis based on a high dynamic range (HDR) image and a derivative tone-mapped (TM) image that comprises one or more color alterations that would not be recoverable from the TM image with a luminance ratio image. The TM image with HDR reconstruction data derived from the luminance ratio values and the color-channel residual values may be outputted in an image file to a downstream device, for example, for decoding, rendering, and/or storing. The image file may be decoded to generate a restored HDR image free of the color alterations.

    Abstract translation: 提供了技术来编码和解码包括色调映射（TM）图像的图像数据，其中HDR重建数据以亮度比和颜色残余值的形式。 在一个示例实施例中，基于高动态范围（HDR）图像和包括一个或多个的图像的导数色调映射（TM）图像，在各个像素的基础上产生颜色空间的颜色通道中的亮度比值和残差值 不能从具有亮度比图像的TM图像中恢复的颜色变化。 可以将从亮度比值和颜色通道残差导出的具有HDR重建数据的TM图像输出到图像文件到下游装置，例如用于解码，渲染和/或存储。 图像文件可以被解码以生成没有颜色变化的恢复的HDR图像。

    Passive multi-wearable-devices tracking
    17.
    发明授权
    Passive multi-wearable-devices tracking 有权

    公开(公告)号：US12277724B2

    公开(公告)日：2025-04-15

    申请号：US18195004

    申请日：2023-05-09

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： Ajit Ninan ,  Neil Mammen

    IPC: G06T7/70 ,  G02B27/00 ,  G02B27/01 ,  G02B30/24 ,  G02B30/25 ,  G06F3/01 ,  G06F3/03 ,  G06T7/285 ,  G06T7/521 ,  G06T7/593

    Abstract: At a first time point, a first light capturing device at a first spatial location in a three-dimensional (3D) space captures first light rays from light sources located at designated spatial locations on a viewer device in the 3D space. At the first time point, a second light capturing device at a second spatial location in the 3D space captures second light rays from the light sources located at the designated spatial locations on the viewer device in the 3D space. Based on the first light rays captured by the first light capturing device and the second light rays captured by the second light capturing device, at least one of a spatial position and a spatial direction, at the first time point, of the viewer device is determined.

    Coding multiview video
    20.
    发明授权
    Coding multiview video 有权

    公开(公告)号：US11218729B2

    公开(公告)日：2022-01-04

    申请号：US16847539

    申请日：2020-04-13

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： Haricharan Lakshman ,  Ajit Ninan

    IPC: H04N19/597 ,  H04N13/161 ,  G06T15/20 ,  G06T19/00 ,  H04N13/111

    Abstract: A target view to a 3D scene depicted by a multiview image is determined. The multiview image comprises multiple sampled views. Each sampled view comprises multiple texture images and multiple depth images in multiple image layers. The target view is used to select, from the multiple sampled views of the multiview image, sampled views. A texture image and a depth image for each sampled view in the selected sampled views are encoded into a multiview video signal to be transmitted to a downstream device.

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