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US 11,455,975 B2Granted
Systems and method for improving operating characteristics of displays
AssigneeSnap Inc.
InventorsStephen John Hart, Edward Rock Kent, Howard V. Goetz, James L. Sanford, Nicholas W. Melena
Life of this patent
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Abstract
Systems and methods for improving operating characteristics of displays such as liquid crystal on silicon displays.
Claims20
A display system, comprising:
- a display;
- and
- a display driver, wherein the display driver is configured to send a bit-plane to the display according to a display table;
- wherein each row of the display table includes a sequence of bit-planes associated with one of a plurality of phase values;
- wherein each sequence of bit-planes includes a number of 1-values and a number of 0-values associated with a respective one of the plurality of phase values;
- wherein, for each sequence of bit-planes where the number of 1-values is greater than one:
- the number of 1-values are distributed in the sequence of bit-planes such that one or more groups of one or more 1-values are spaced apart from one another by one or more groups of one or more 0-values;
- and
- wherein each of the one or more groups of one or more 1-values has approximately a same number of bit-planes and each of the one or more groups of one or more 0-values has approximately a same number of bit-planes.
6 more elements
A display system, comprising:
- a display;
- and
- a display driver, wherein the display driver is configured to send a bit-plane to the display according to a display table;
- wherein each row of the display table includes a sequence of bit-planes associated with one of a plurality of phase shift values;
- wherein each sequence of bit-planes includes a number of 1-values and a number of 0-values associated with a respective one of the plurality of phase shift values;
- wherein, for each sequence of bit-planes where a number P of 1-values is greater than one and less than 2n−2, the number of 1-values are distributed across a length of the sequence of bit-planes according to a spacing D that is determined as 2n/P, where the length of the sequence of bit-planes is 2n and P represents the number of 1-values in a sequence of bit-planes.
3 more elements
A method for forming a display table including a plurality of bit-plane sequences each associated with one of a plurality of phase shift values, comprising:
- determining a bit plane resolution 2n;
- determining 2n phase shift values, wherein each of the phase shift values is associated with a number P in a range 0, 1, . . . , 2n−1, wherein P represents a number of 1-values in a sequence of bit-planes associated with one of the phase shift values and 2n−P represents a number of 0-values in the sequence of bit-planes associated with the one of the phase shift values;
- and
- for each of the phase shift values associated with a number P in a range of 2, . . . , 2n−2;
- determining a spacing D as 2n/P;
- and
- determining a sequence of bit-planes such that the number of 1-values are distributed across a length of the sequence of bit-planes according to the spacing D.
4 more elements
Dependencies are inferred from the claim text.