Method of processing image data for display on a display device, which comprising a multi-primary image display panel
First Claim
1. A method of processing image data for display on a display device, the display device comprising a multi-primary image display panel, the method comprising:
- receiving image data constituting an image for display on the image display panel;
in a first mode, determining signal voltages to be applied to sub-pixels of the image display panel from the received image data and from a secondary data value for the pixel thereby to generate luminance variations perceivable at a first viewing position but substantially not perceivable at a second viewing position, andin the first mode, determining signal voltages to be applied to sub-pixels of the image display panel such that the signal voltage for a first sub-pixel of a first pixel of the image display panel is changed in an opposite direction to the signal voltage for a second sub-pixel of the first pixel.
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Accused Products
Abstract
A method of processing image data for display on a display device having a multi-primary image display panel (2) comprises receiving image data constituting an image for display on the image display panel. In a first mode, signal voltages to be applied to sub-pixels of the image display panel are determined from the received image data and from a secondary data value for the pixel thereby to generate luminance variations perceivable at a first viewing position (5) but substantially not perceivable at a second viewing position (3). This provides a private display mode, since the luminance variations perceivable at the first viewing position (5) obscure the image from an observer at the first viewing position, while an observer at the second viewing position (3) is able to perceive the image since the luminance variations are not perceivable (or are substantially not perceivable) at the second viewing position In a second mode, signal voltages to be applied to sub-pixels of the image display panel may be determined just from the received image data thereby to generate an image perceivable at the first viewing position (5) and at the second viewing position (3). This provides a public or wide-view display mode.
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Citations
29 Claims
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1. A method of processing image data for display on a display device, the display device comprising a multi-primary image display panel, the method comprising:
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receiving image data constituting an image for display on the image display panel; in a first mode, determining signal voltages to be applied to sub-pixels of the image display panel from the received image data and from a secondary data value for the pixel thereby to generate luminance variations perceivable at a first viewing position but substantially not perceivable at a second viewing position, and in the first mode, determining signal voltages to be applied to sub-pixels of the image display panel such that the signal voltage for a first sub-pixel of a first pixel of the image display panel is changed in an opposite direction to the signal voltage for a second sub-pixel of the first pixel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 23, 24)
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16. A method of processing image data for display on a display device, the display device comprising a multi-primary image display panel, the method comprising:
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receiving image data constituting an image for display on the image display panel; in a first mode, determining signal voltages to be applied to sub-pixels of the image display panel from the received image data and from a secondary data value for the pixel thereby to generate luminance variations perceivable at a first viewing position but substantially not perceivable at a second viewing position, and in the first mode, determining the signal voltage to be applied to a sub-pixel having the greatest luminance contribution so as to compensate for differences in luminance of other sub-pixels between the first mode and the second modes. - View Dependent Claims (17, 18, 19, 20, 21, 22, 25, 26, 27, 28, 29)
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Specification