Method, device and system of response time compensation

1. A method of displaying an image on a liquid crystal display having an array of sub-pixel elements, the method comprising:

applying control signals to data lines connected to the sub-pixel elements from column drivers;

obtaining a first set of one or more values from the column drivers by sampling values of one or more sub-pixel value-holders associated with one or more of said sub-pixel elements, the first set of values corresponding to one or more sub-pixels of a first frame of said image;

receiving a second set of values corresponding to one or more sub-pixels of a second frame of said image; and

updating the values of one or more of the sub-pixel value-holders based on the first and second sets of values, wherein the sub-pixel value holders are storage capacitors within the sub-pixel elements.

2. The method of claim 1 , wherein the sub-pixel elements comprise liquid crystal elements.

3. The method of claim 1 , further comprising activating the sub-pixel elements based on the values held by the sub-pixel value-holders to display the second frame of said image.

4. The method of claim 1 , wherein sampling the sub-pixel value-holders comprises extracting voltage values.

5. The method of claim 4 , further comprising multiplexing the extracted voltage values at different time slots.

6. The method of claim 1 , wherein the one or more sub-pixel elements comprise a row of sub-pixels.

7. The method of claim 1 , comprising adjusting the timing of the sampled first set of values to be substantially concurrent with the received second set of values.

8. The method of claim 7 , wherein adjusting the timing comprises storing the second set of values in a buffer.

9. The method of claim 1 , wherein each storage capacitor is connected to a data line.

10. The method of claim 1 , wherein the values of one or more of the sub-pixel value-holders are updated by using a look-up table storing output signal values corresponding to a difference between the first and second sets of values.

11. A liquid crystal display device to generate an image to be displayed using an array of sub-pixel elements, the device comprising:

column drivers to apply control signals to data lines connected to the sub-pixel elements;

an extractor to obtain a first set of one or more values from the column drivers by sampling values of one or more sub-pixel value-holders operatively associated with one or more of said sub-pixel elements, the first set of values corresponding to one or more sub-pixels of a first frame of said image;

a controller to provide a second set of values corresponding to one or more sub-pixels of a second frame of said image; and

a feed forward driving module to update the values of the sub-pixel value-holders based on the first and second set of values, wherein the sub-pixel value holders are storage capacitors within the sub-pixel elements.

12. The device of claim 11 , wherein the sub-pixel elements comprise liquid crystal elements.

13. The device of claim 11 , wherein the controller is to activate the sub-pixel elements to display the second frame of the image based on the values held by the sub-pixel value-holders.

14. The device of claim 11 , wherein at least one of the sub-pixel value-holders comprises a capacitor controlled by a gate.

15. The device of claim 11 , wherein the extractor comprises:

one or more sample-and-hold modules to sample one or more corresponding sub-pixel value-holders, and to adjust the sampled first set of values to different time slots; and

a multiplexer to combine the sampled first set of values.

16. The device of claim 11 , wherein the one or more sub-pixel elements comprise a row of sub-pixels.

17. The device of claim 11 , wherein the controller is to adjust the timing of the sampled first set of values and the received second set of values to be substantially concurrent at the feed-forward driving module.

18. The device of claim 11 , further comprising a buffer to store the second set of values received from the controller.

19. The liquid crystal display device of claim 11 , wherein each storage capacitor is connected to a data line.

20. The liquid crystal display device of claim 11 , wherein the values of one or more of the sub-pixel value-holders are updated by using a look-up table storing output signal values corresponding to a difference between the first and second sets of values.