Sub-pixel rendering system and method for improved display viewing angles
View Patent ↗System and methods are disclosed for improving the off-normal axis viewing angle by applying different filters if one colored sub-pixel data is driven close to 100% luminance while other colored sub-pixel data is driven close to 50% luminance values. Systems and methods for adjusting the viewing characteristics of the display system are also disclosed.
1. In a display system comprising a graphics subsystem, said graphics subsystem further comprising a sub-pixel rendering system, and a display panel being driven by said graphics subsystem wherein said panel further comprises a plurality of colored sub-pixels across said panel, each of said colored sub-pixels further comprising at least one of a group of a first color, a second color and a third color,
a method for improving off-normal axis viewing characteristics, the steps of said method comprising:
sub-pixel rendering source image data for display upon the panel; and
for any colored sub-pixel data wherein said sub-pixel rendering assigns a unity filter for said colored sub-pixel, substituting a different filter for said colored sub-pixel.
2. The method as recited in claim 1 wherein the step of substituting a different filter further comprises:
applying a tent filter to said colored sub-pixel.
3. The method as recited in claim 2 wherein the step of applying a tent filter further comprises:
applying a horizontal tent filter.
4. The method as recited in claim 2 wherein the step of applying a tent filter further comprises:
applying a vertical tent filter.
5. The method as recited in claim 2 wherein the step of applying a tent filter further comprises:
applying a diagonal tent filter.
6. The method as recited in claim 1 wherein the step of substituting a different filter further comprises:
applying an asymmetric box filter.
7. The method as recited in claim 1 wherein the step of substituting a different filter further comprises:
testing for a condition of transition from a first region of luminance to a second region of luminance in the image data; and applying a different filter depending upon the results of the test.
8. The method as recited in claim 7 wherein the step of testing for a condition further comprises:
testing for a transition from one of a group, said group comprising a transition from a bright region to a dark region in the image data and a transition from a dark region to a bright region.
9. The method as recited in claim 1 wherein said method further comprises the step of:
allowing the user to adjust viewing parameters of the display system.
10. The method as recited in claim 9 wherein the step of allowing the user to adjust viewing parameters further comprises:
allowing the user to adjust the level of sharpness of the display system.
11. The method as recited in claim 9 wherein the step of allowing the user to adjust viewing parameters further comprises:
allowing the user to adjust the level of gamma adjustment of the display system.
12. The method as recited in claim 9 wherein the step of allowing the user to adjust viewing parameters further comprises:
allowing the user to adjust the level of contrast ratio of the display system.
13. A method for a display system comprising a graphics subsystem, said graphic subsystem further comprising a sub-pixel rendering system, and a display panel being driven by said graphic subsystem wherein said panel further comprises a plurality of colored sub-pixel across said panel, each of said colored sub-pixels further comprising at least one of a group of a first color, a second color and a third color, the method for improving off-normal axis viewing characteristic, the method comprising:
configuring the graphic subsystem to:
sub-pixel render source image data for display upon the panel; and
for any colored sub-pixel rendering assigns a unit filter for said colored sub-pixel, substitute a different filter for said colored sub-pixel.