公开(公告)号：US20130106923A1

公开(公告)日：2013-05-02

申请号：US13719412

申请日：2012-12-19

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Jerome Shields ,  Marek Hadlaw ,  Gopal Erinjippurath

IPC: G09G3/34

CPC classification number: G09G3/3406 ,  G02F1/1333 ,  G02F1/133606 ,  G02F1/1347 ,  G02F2001/133601 ,  G09G3/3426 ,  G09G2300/023 ,  G09G2320/0646 ,  G09G2360/16 ,  H04N9/3126

Abstract: A dual-panel display system is provided that comprises control modules and algorithms to select codeword pairs (CWs) to drive a first image-generating panel and a second contrast-improving panel. The first codewords is selected by considering some characteristics of the input image data (e.g., peak luminance) and to improve some image rendering metric (e.g., reduced parallax, reduced contouring, improved level precision). The first codeword may be selected to be the minimum first codeword within a set of codeword pairs that preserves the peak luminance required by the input image data. Also, the first codeword may be selected to minimize the number of Just Noticeable Difference (JND) steps in the final image to be rendered. The second codeword may be selected to similarly improve image quality according to a given quality metric.

Abstract translation: 提供了一种双面板显示系统，其包括控制模块和算法以选择代码字对（CW）以驱动第一图像生成面板和第二对比度改善面板。 通过考虑输入图像数据的一些特性（例如，峰值亮度）来选择第一码字，并且改善一些图像呈现度量（例如，减小的视差，缩小的轮廓，提高的水平精度）。 可以将第一码字选择为一组码字对内的最小的第一码字，其保留输入图像数据所需的峰值亮度。 此外，可以选择第一码字以最小化要呈现的最终图像中的仅显着差异（JND）步骤的数量。 可以选择第二码字以根据给定的质量度量类似地提高图像质量。

公开(公告)号：US20180011365A1

公开(公告)日：2018-01-11

申请号：US15699657

申请日：2017-09-08

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Jerome D. Shields ,  Marek Hadlaw ,  Gopal Erinjippurath

IPC: G02F1/1347 ,  G09G3/34 ,  H04N13/04 ,  G02F1/1335

Abstract: A display provides increased contrast and resolution via first LCD panel energized to generate an image and a second LCD panel configured to increase contrast of the image. The second panel is an LCD panel without color filters and is configured to increase contrast by decreasing black levels of dark portions of images using polarization rotation and filtration. The second LCD panel may have higher resolution than the first LCD panel. A half wave plate and/or film is placed in between the first and the second panel. The panels may be directly illuminated or edge lit, and may be globally or locally dimmed lights that may also include individual control of color intensities for each image or frame displayed.

公开(公告)号：US09135864B2

公开(公告)日：2015-09-15

申请号：US13719412

申请日：2012-12-19

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Jerome Shields ,  Marek Hadlaw ,  Gopal Erinjippurath

IPC: G09G3/34 ,  G02F1/1335 ,  G02F1/1347 ,  G02F1/1333 ,  H04N9/31

CPC classification number: G09G3/3406 ,  G02F1/1333 ,  G02F1/133606 ,  G02F1/1347 ,  G02F2001/133601 ,  G09G3/3426 ,  G09G2300/023 ,  G09G2320/0646 ,  G09G2360/16 ,  H04N9/3126

Abstract: A dual-panel display system is provided that comprises control modules and algorithms to select codeword pairs (CWs) to drive a first image-generating panel and a second contrast-improving panel. The first codewords is selected by considering some characteristics of the input image data (e.g., peak luminance) and to improve some image rendering metric (e.g., reduced parallax, reduced contouring, improved level precision). The first codeword may be selected to be the minimum first codeword within a set of codeword pairs that preserves the peak luminance required by the input image data. Also, the first codeword may be selected to minimize the number of Just Noticeable Difference (JND) steps in the final image to be rendered. The second codeword may be selected to similarly improve image quality according to a given quality metric.

Abstract translation: 提供了一种双面显示系统，其包括控制模块和算法以选择代码字对（CW）以驱动第一图像生成面板和第二对比度改进面板。 通过考虑输入图像数据的一些特性（例如，峰值亮度）来选择第一码字，并且改善一些图像呈现度量（例如，减小的视差，缩小的轮廓，提高的水平精度）。 可以将第一码字选择为一组码字对内的最小的第一码字，其保留输入图像数据所需的峰值亮度。 此外，可以选择第一码字以最小化要呈现的最终图像中的仅显着差异（JND）步骤的数量。 可以选择第二码字以根据给定的质量度量类似地提高图像质量。