Display system using system level resources to calculate compensation parameters for a display module in a portable device

1. A portable electronic device comprising:

a display module carried on a first substrate and integrated in the portable electronic device, comprising an electronic video display and a plurality of sub-modules, each only using display level resources of the first substrate, at least one of said plurality of sub-modules for controlling measurement of pixels; and

at least one processing unit, included in a system module physically arranged on one or more substrates communicatively coupled to and separate from the first substrate, the at least one processing unit configured to execute system level applications of the portable electronic device and, as part of generating new compensation parameters, to perform said controlling measurement of pixels offloaded from said at least one of said plurality of sub-modules, using system level resources of the one or more substrates distinct from the display level resources.

2. The portable electronic device of claim 1 , wherein the plurality of sub-modules of the portable electronic device comprise:

a driver unit;

a timing controller;

a measurement unit;

a compensation sub-module; and

a display memory unit,

and wherein the electronic video display is communicatively coupled to at least one of the driver unit, the measurement unit, the timing controller, the compensation sub-module, and the display memory unit, and wherein the system level resources include one or more system memory units of the one or more substrates.

3. The portable electronic device of claim 1 , wherein said controlling measurement of pixels offloaded from said at least one of said plurality of sub-modules forms part of a compensation related operation the at least one processing unit shares with said at least one of said plurality of sub-modules.

4. The portable electronic device of claim 1 , wherein said controlling measurement of pixels offloaded from said at least one of said plurality of sub-modules comprises controlling a measurement unit.

5. The portable electronic device of claim 1 , wherein said at least one processing unit is further configured to perform calculations of the new compensation parameters with use of pixel measurements generated during said controlling measurement of pixels.

6. The portable electronic device of claim 1 , wherein said at least one processing unit is configured to perform said controlling measurement of pixels offloaded from said at least one of said plurality of sub-modules during an offline operation in which the electronic video display is off.

7. The portable electronic device of claim 1 , wherein the one or more substrates is communicatively coupled to said first substrate via a connector cable configured to interface the display module with the system module.

8. The portable electronic device of claim 5 , wherein a display memory unit of the portable electronic device is updated with the calculated new compensation parameters from the system module via a main memory bus or a display video interface.

9. The portable electronic device of claim 1 , wherein during a calibration of the electronic video display, only those resources required for the calibration remain powered on.

10. The portable electronic device of claim 1 , wherein calibration of the electronic video display is carried out according to threshold criteria including battery charge and resource availability.

11. The portable electronic device of claim 1 , wherein calibration of blue sub-pixels of the electronic video display is carried out according to a higher priority than a calibration of sub-pixels of the electronic video display of colors other than blue.

12. The portable electronic device of claim 1 , wherein a measurement unit of the portable electronic device carries out measurements of pixels of the electronic video display using the system level resources or the display resources or both during an inline operation while pixels of the electronic video display are emitting light.

13. A method of operating a portable electronic device including, a display module carried on a first substrate and integrated in the portable electronic device including an electronic video display and a plurality of sub-modules, each only using display level resources of the first substrate, and at least one processing unit, included in a system module physically arranged on one or more substrates communicatively coupled to and separate from the first substrate, the method comprising:

performing by at least one of said plurality of sub-modules, control of measurement of pixels;

executing at the at least one processing unit, system level applications of the portable electronic device;

offloading said control of measurement of pixels from said at least one of said plurality of sub-modules; and

performing at the at least one processing unit, as part of generating new compensation parameters, said control of measurement of pixels offloaded from the at least one of said plurality of sub-modules, using system level resources of the one or more substrates distinct from the display level resources.

14. The method of claim 13 , wherein said control of measurement of pixels offloaded from said at least one of said plurality of sub-modules forms part of a compensation related operation the at least one processing unit shares with said at least one of said plurality of sub-modules.

15. The method of claim 13 , wherein said control of measurement of pixels offloaded from said at least one of said plurality of sub-modules comprises controlling a measurement unit.

16. The method of claim 13 , further comprising, performing at the at least one processing unit calculations of the new compensation parameters with use of pixel measurements generated during said control of measurement of pixels.

17. The method of claim 13 , wherein said performing at the at least one processing unit, said control of measurement of pixels offloaded from the at least one of said plurality of sub-modules is performed during an offline operation in which the electronic video display is off.

18. The method of claim 13 , wherein the one or more substrates is communicatively coupled to said first substrate via a connector cable configured to interface the display module with the system module.

19. The method of claim 16 , further comprising:

updating a display memory unit of the portable electronic device with the calculated new compensation parameters from the system module via a main memory bus or a display video interface.

20. The method of claim 13 , further comprising:

carrying out, at a measurement unit of the portable electronic device, measurements of pixels of the electronic video display using the system level resources or the display resources or both during an inline operation while pixels of the electronic video display are emitting light.