Global illumination mode liquid crystal display for virtual reality

1. A liquid crystal display device comprising:

a liquid crystal layer including a plurality of liquid crystals in a pixel area, a plurality of pixels disposed in the pixel area;

a backlight unit coupled to the liquid crystal layer, the backlight unit configured to project light towards the entire pixel area of the liquid crystal layer during an illumination time period of a frame time, and not to project the light towards any of the pixel area of the liquid crystal layer during a non-illumination time period of the frame time; and

a controller coupled to the liquid crystal layer and the backlight unit, configured to:

apply a liquid crystal control signal to pixels of the liquid crystal layer during a data scan out time period for configuring states of the plurality of liquid crystals, the data scan out time period not overlapping with the illumination time period and configured to be a multiple of (i) an inverse of a data bandwidth used for transferring data from the controller to pixels in a row and (ii) a total number of rows of the plurality of pixels, and

wherein the illumination time period is a remainder of the frame time excluding the data scan out time period and a liquid crystal transition time period during which states of liquid crystals in the row are changed.

2. The liquid crystal display device of claim 1 , wherein a first set of pixels of the plurality of pixels in a first row is applied with a liquid crystal control signal during a first portion of the non-illumination time period, states of liquid crystals corresponding to the first set of pixels being changed during a second portion of the non-illumination time period after the first portion of the non-illumination time period.

3. The liquid crystal display device of claim 2 , wherein the states of the liquid crystals corresponding to the first set of pixels are changed during the second portion of the non-illumination time period, while a second set of pixels of the plurality of pixels in a second row is applied with the liquid crystal control signal.

4. The liquid crystal display device of claim 3 , wherein the backlight unit projects the light towards the first set of pixels and the second set of pixels simultaneously during the illumination time period.

5. The liquid crystal display device of claim 3 , wherein, after the states of the liquid crystals corresponding to the first set of pixels completed changing and before a start of the illumination time period, states of liquid crystals corresponding to the second set of pixels are in transition.

6. The liquid crystal display device of claim 1 ,

wherein the controller is further configured to:

sequentially apply the liquid crystal control signal to pixels of the liquid crystal layer per row during the data scan out time period, and

apply a backlight control signal to a light source coupled to the backlight unit to project the light from the backlight unit simultaneously towards the entire pixel area of the liquid crystal layer during the illumination time period.

7. The liquid crystal display device of claim 6 , wherein the data scan out time period is less than 1 ms, the illumination time period is 2 ms, and the frame time is less than 9 ms.

8. A method of displaying an image by a liquid crystal display device including a liquid crystal layer and a backlight unit coupled to the liquid crystal layer, the liquid crystal layer including a plurality of liquid crystals in a pixel area, a plurality of pixels disposed in the pixel area, the method comprising:

sequentially configuring states of the liquid crystals per row during a data scan out time period, the data scan out time period configured to be a multiple of (i) an inverse of a data bandwidth used for transferring data to pixels in a row and (ii) a total number of rows of the plurality of pixels; and

projecting, by the backlight unit, light towards the entire pixel area of the liquid crystal layer during an illumination time period of a frame time that does not overlap with the data scan out time period and corresponding to a remainder of the frame time excluding the data scan out time period and a liquid crystal transition time period during which states of liquid crystals in the row are changed;

wherein the backlight unit does not project the light towards any of the pixel area of the liquid crystal layer during a non-illumination time period of the frame time.

9. The method of claim 8 , wherein configuring the states of the liquid crystals includes applying a liquid crystal control signal to the plurality of pixels and changing the states of the liquids crystals per row.

10. The method of claim 9 , wherein a first set of pixels of the plurality of pixels in a first row is applied with the liquid crystal control signal during a first portion of the non-illumination time period, states of liquid crystals corresponding to the first set of pixels being changed during a second portion of the non-illumination time period after the first portion of the non-illumination time period.

11. The method of claim 10 , wherein the states of the liquid crystals corresponding to the first set of pixels are changed during the second portion of the non-illumination time period, while a second set of pixels of the plurality of pixels in a second row is applied with the liquid crystal control signal.

12. The method of claim 11 , wherein the backlight unit projects the light towards the first set of pixels and the second set of pixels simultaneously during the illumination time period.

13. The method of claim 11 , wherein, after the states of the liquid crystals corresponding to the first set of pixels completed changing and before a start of the illumination time period, states of liquid crystals corresponding to the second set of pixels are in transition.

14. The method of claim 8 , wherein the data scan out time period is less than 1 ms, the illumination time period is 2 ms, and the frame time is less than 9 ms.