NON-LINEAR DISPLAY BRIGHTNESS ADJUSTMENT
First Claim
1. A system, comprising:
- a display panel configured to display digital content; and
a brightness adjustment module configured to;
obtain information about one or more conditions affecting display panel brightness from one or more sources;
determine an adjustment to brightness level for the display panel from the obtained information; and
scale the display panel brightness up or down according to a non-linear brightness adjustment function to adjust the brightness level of the display panel according to the obtained information.
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Accused Products
Abstract
Display brightness adjustment apparatus and methods are described in which the average brightness of a display may be scaled up or down using a non-linear function. When applying the non-linear function to scale down brightness, the contrast of the output signal may not be reduced so that the dynamic range and highlights are preserved. The non-linear brightness adjustment may be performed automatically, for example in response to ambient light level as detected by sensor(s), but may also be applied in response to a user adjustment to a brightness control knob or slider. The non-linear brightness adjustment may be performed globally, or alternatively may be performed on local regions of an image or display panel. The non-linear function may be a piecewise linear function, or some other non-linear function.
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Citations
20 Claims
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1. A system, comprising:
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a display panel configured to display digital content; and a brightness adjustment module configured to; obtain information about one or more conditions affecting display panel brightness from one or more sources; determine an adjustment to brightness level for the display panel from the obtained information; and scale the display panel brightness up or down according to a non-linear brightness adjustment function to adjust the brightness level of the display panel according to the obtained information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method, comprising:
performing, by a brightness adjustment module implemented on a device; obtaining information about one or more conditions affecting display panel brightness of a target display panel from one or more sources; determining an adjustment to brightness level for the display panel from the obtained information; and scaling the display panel brightness up or down according to a non-linear brightness adjustment function to adjust the brightness level of the display panel according to the obtained information; wherein display panel contrast is not affected by the scaling of the display panel brightness. - View Dependent Claims (14, 15, 16, 17)
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18. An apparatus, comprising:
a brightness adjustment module configured to; obtain information about one or more conditions affecting display panel brightness of a target display panel from one or more sources; determine an adjustment to brightness level for the display panel from the obtained information; apply a non-linear brightness adjustment function to a luma component of an input digital content signal to generate an output digital content signal to scale display panel brightness according to the obtained information; and output the digital content to the target display panel for display; wherein display panel contrast is not affected by the scaling of the display panel brightness. - View Dependent Claims (19, 20)
Specification