Systems and methods for display systems with dynamic power control

1. A display system comprising:

an array of pixel circuits comprising a plurality of subsections of pixel circuits, each of said pixel circuits comprising a light emitting device and a driving transistor for conveying a driving current through the light emitting device;

a plurality of supply lines, each supply line providing a distinct supply voltage to all of the pixel circuits in a respective one of the subsections of pixel circuits;

an adjustable voltage supply configured to provide the distinct supply voltages to each of the supply lines; and

a controller for receiving digital data indicative of information to be displayed, and for determining a voltage level for the adjustable voltage supply sufficient to enable the pixel circuits in each of the subsections to emit light according to the digital data.

2. The system according to claim 1 , wherein each subsection of pixels corresponds to a region displaying a feature of a graphical user interface.

3. The system according to claim 1 , wherein each subsection of pixels coincides with one or more iconographic symbols of a graphical user interface.

4. The system according to claim 1 , wherein the controller is configured to dynamically determine, based on a range of luminance values indicated by the digital data for a first subsection of pixel circuits, a first voltage level to apply to the first subsection of pixel circuits sufficient to set the first subsection of pixel circuits in a saturation mode; and

wherein the controller is configured to dynamically determine, based on a range of luminance values indicated by the digital data for a second subsection of pixel circuits, a second voltage level, different than the first voltage level, to apply to the second subsection of pixel circuits sufficient to set the second subsection of pixel circuits in a saturation mode.

5. The system according to claim 1 , wherein the controller is capable of setting the supply voltages to each of the subsections of pixels at a lower subdued level; and

wherein the controller is capable of setting the supply voltage of a selected subsection at a higher brighter level.

6. The system according to claim 5 , wherein the controller is capable of setting the supply voltage of the selected subsection at the brighter level in response to a user's selection.

7. The system according to claim 6 , wherein the controller is capable of setting the supply voltage back to the subdued level in response to a user's deselection.

8. The system according to claim 5 , wherein the selected subsection comprises a header menu.

9. The system according to claim 1 , wherein the controller is capable of adjusting the supply voltage provided to selected subsections at a frequency less than a frame rate of information displayed.

10. The system according to claim 1 , wherein the controller is configured to dynamically adjust the adjustable voltage supply to provide the distinct supply voltages via the plurality of supply lines in real time.

11. The system according to claim 1 , wherein the controller is configured to dynamically adjust the adjustable voltage supply to provide the distinct supply voltages via the plurality of supply lines based on both predicted or measured degradation information for the pixel circuits and the digital data.

12. The system according to claim 1 , further comprising a plurality of data lines, each data line conveying programming information to each pixel;

wherein each pixel circuit further comprises a storage capacitor connected to a gate terminal of each of the driving transistors, and to one of the data lines for storing programming information;

wherein the controller is capable of stopping the transfer of programming information to selected subsections of pixels.

13. The system according to claim 1 , wherein each subsection of the pixels are non-overlapping.

14. A method of operating a display, the method comprising:

receiving digital data input indicative of an amount of luminance to be emitted from an array of pixel circuits that includes a plurality of subsections of pixel circuits, each of said pixel circuits comprising a light emitting device and a driving transistor for conveying a driving current through the light emitting device;

determining, based on digital data indicative of an amount of luminance to be emitted from the pixel circuits in each of the subsections, an output level-in each of the subsections to emit light according to the digital data; and

providing supply voltages to the pixel circuits from a plurality of supply lines, each supply line providing a distinct supply voltage to all of the pixel circuits in a respective one of the subsections of pixel circuits.

15. The method according to claim 14 , further comprising:

determining, based on the received digital data, voltages necessary to set a first subsection of pixel circuits in a saturation mode;

analyzing the determined necessary voltages to find the maximum necessary voltage; and

setting the voltage supply to provide the maximum necessary voltage to the first subsection of pixels.

16. The method according to claim 15 , wherein the determining step includes: evaluating the voltages required in each pixel to operate emissive elements according to measured or predicted aging information for each pixel.

17. The method according to claim 15 , wherein each subsection of pixels coincides with one or more iconographic symbols of a graphical user interface.

18. The method according to claim 15 , further comprising setting the supply voltages to each of the subsections of pixels at a lower subdued level in a standby mode; and

setting the supply voltage of a selected subsection at a higher brighter level.

19. The method according to claim 8 , further comprising setting the supply voltage of the selected subsection at the higher brighter level in response to a user's selection.

20. The method according to claim 19 , further comprising setting the supply voltage back to the subdued level in response to a user's deselection.