Optimising brightness control in a 3d image display device
First Claim
1. A display device (101) for displaying a three dimensional image such that different views are displayed according to the viewing angle, the display device including:
- a display panel (15, 53) having a plurality of separately addressable pixels (0 . . . 10) for displaying said image, the pixels being grouped such that different pixels in a group (16) correspond to different views of the image, each pixel in a group being positioned relative to a respective discrete light source (14);
a display driver (52) for controlling an optical characteristic of each pixel to generate an image according to received image data; and
an intensity compensation device (60, 70) for further controlling said optical characteristic of pixels within a group to compensate for an angular size of view, of the respective light source, via said pixels.
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Accused Products
Abstract
A display device for displaying a three dimensional image such that different views are displayed according to the viewing angle has a display panel with a plurality of separately addressable pixels for displaying said image. The pixels are grouped such that different pixels in a group correspond to different views of the image. A display driver controls a transmission characteristic of each pixel to generate an image according to received image data. The drive signals applied to each pixel in the display panel are adjusted using intensity correction values that vary the optical transmission of each pixel within a group so as to produce an intensity for each point in the image that is independent of viewing direction.
19 Citations
36 Claims
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1. A display device (101) for displaying a three dimensional image such that different views are displayed according to the viewing angle, the display device including:
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a display panel (15, 53) having a plurality of separately addressable pixels (0 . . . 10) for displaying said image, the pixels being grouped such that different pixels in a group (16) correspond to different views of the image, each pixel in a group being positioned relative to a respective discrete light source (14);
a display driver (52) for controlling an optical characteristic of each pixel to generate an image according to received image data; and
an intensity compensation device (60, 70) for further controlling said optical characteristic of pixels within a group to compensate for an angular size of view, of the respective light source, via said pixels. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A method for displaying a three dimensional image on a display device (101) such that different views of the image are displayed according to the viewing angle, the method comprising the steps of:
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processing image data to form pixel intensity data values for each one of a plurality of separately addressable pixels (0 . . . 10) in display panel (15, 53), the pixels being grouped such that different pixels in a group (16) correspond to different views of the image, and each pixel in a group being positioned relative to a respective discrete light source (14), the pixel intensity data values each for controlling an optical characteristic of a respective pixel to generate the image;
applying intensity correction values to at least some pixel data values within each group to compensate for an angular size of view, of the respective light source, via said pixels; and
using the corrected pixel data values to drive pixels of the display panel to generate said image. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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Specification