Control of optical switching apparatus
First Claim
Patent Images
1. A method of driving an optical switching apparatus switchable between a first display mode that provides a common image at each of a plurality of different viewing windows and a second display mode that provides a distinct image at each of the plurality of different viewing windows;
- the method comprising;
(i) determining whether the optical switching apparatus is switched to the second display mode;
(ii) determining whether an image to be displayed is not authorised to be displayed with a distinct image at each of the plurality of different viewing windows; and
(iii) responsive to an affirmative determination in both steps (i) and (ii), driving the optical switching apparatus using a driving scheme arranged to display the image such that the distinct images at each of the plural viewing windows in the second display mode are substantially the same as each other.
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Abstract
Control methods and apparatus for controlling driving of switchable display devices are described. The switchable display devices may be switchable between a 2D display mode and a 3D autostereoscopic display mode. Control apparatus (1455) comprising a display mode module (1465), an image data module (1470), an authorisation module (1475), a controller (1480) and a driver module (1485) is described.
54 Citations
30 Claims
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1. A method of driving an optical switching apparatus switchable between a first display mode that provides a common image at each of a plurality of different viewing windows and a second display mode that provides a distinct image at each of the plurality of different viewing windows;
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the method comprising;
(i) determining whether the optical switching apparatus is switched to the second display mode;
(ii) determining whether an image to be displayed is not authorised to be displayed with a distinct image at each of the plurality of different viewing windows; and
(iii) responsive to an affirmative determination in both steps (i) and (ii), driving the optical switching apparatus using a driving scheme arranged to display the image such that the distinct images at each of the plural viewing windows in the second display mode are substantially the same as each other. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 30)
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14. Control apparatus for controlling driving of an optical switching apparatus switchable between a first display mode that provides a common image at each of a plurality of different viewing windows and a second display mode that provides a distinct image at each of the plurality of different viewing windows;
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the control apparatus comprising;
(i) means for determining that the optical switching apparatus is switched to the second display mode;
(ii) means for determining that an image to be displayed is not authorised to be displayed with a distinct image at each of the plurality of different viewing windows; and
(iii) means for providing, responsive to affirmative outputs from the means for determining that the optical switching apparatus is switched to the second display mode and the means for determining that an image to be displayed is not authorised to be displayed with a distinct image at each of the plurality of different viewing windows, a driving scheme arranged to display the image such that the distinct images at each of the plural viewing windows in the second display mode are substantially the same as each other. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification