Multi-view liquid crystal display and the driving method thereof

1. A multi-view liquid crystal display (LCD), comprising:

an LCD panel, wherein a first program image and a second program image are alternately displayed through the LCD panel;

a first backlight module disposed below the LCD panel; and

a second backlight module disposed between the first backlight module and the LCD panel, wherein the first backlight module and the second backlight module are alternately turned on, wherein the turn-on time of the first backlight module corresponds to the time when the first program image is provided and the turn-on time of the second backlight module corresponds to the time when the second program image is provided, and wherein the first backlight module provides a first plane light source, the second backlight module provides a second plane light source, and an included angle α formed between the transmitting directions of the first and the second plane light sources ranges from 6 degrees to 176 degrees so that the LCD panel, the first backlight module and the second backlight module constitute the multi-view liquid crystal display suitable for different users to view different images from different viewing angles.

2. The multi-view LCD according to claim 1 , wherein the LCD panel comprises a transmissive LCD panel or a transflective LCD panel, and wherein the first backlight module and the second backlight module comprise a direct type backlight module or an edge type backlight module.

3. The multi-view LCD according to claim 1 , wherein the LCD panel has a normal vector, the transmitting direction of the first plane light source forms an included angle α 1 with the normal vector, the transmitting direction of a second plane light source forms an included angle α 2 with the normal vector, and α 1 and α 2 are approximately in the range from 3 degrees to 88 degrees.

4. The multi-view LCD according to claim 1 , wherein the LCD panel has a normal vector, the transmitting direction of the first plane light source forms an included angle α 1 with the normal vector, the transmitting direction of a second plane light source forms an included angle α 2 with the normal vector, α 1 ≠α 2 , α 1 is approximately in the range from 3 degrees to 88 degrees, and α 2 is approximately in the range from 3 degrees to 88 degrees.

5. The multi-view LCD according to claim 1 , wherein the normal vector, the transmitting direction of the first plane light source, and the transmitting direction of the second plane light source are on the same plane.

6. The multi-view LCD according to claim 1 , wherein the first backlight module includes a first light conducting substrate and the second backlight module includes a second light conducting substrate, the first light conducting substrate includes a plurality of first micro grooves and the second light conducting substrate includes a plurality of second micro grooves different from the first micro grooves such that the included angle α formed between the transmitting directions of the first and the second plane light sources ranges from 6 degrees to 176 degrees.

7. A multi-view liquid crystal display (LCD), comprising:

an LCD panel, wherein a first program image and a second program image are alternately displayed through the LCD panel;

a first backlight module disposed below the LCD panel; and

a second backlight module disposed between the first backlight module and the LCD panel, wherein the first backlight module and the second backlight module are alternately turned on, wherein the turn-on time of the first backlight module corresponds to the time when the first program image is provided and the turn-on time of the second backlight module corresponds to the time when the second program image is provided, and wherein the first backlight module provides a first plane light source and the second backlight module provides a second plane light source to the LCD panel to respectively display the first program image and the second program image different from the first program image at the same time.

8. The multi-view LCD according to claim 7 , wherein the transmitting direction of the first plane light source and the transmitting direction of the second plane light source form an included angle α in the range from 6 degrees and 176 degrees.

9. The multi-view LCD according to claim 7 , wherein the first backlight module and the second backlight module are turned on alternately.

10. The multi-view LCD according to claim 7 , wherein the LCD panel has a normal vector, the transmitting direction of the first plane light source forms an included angle α 1 with the normal vector, the transmitting direction of a second plane light source forms an included angle α 2 with the normal vector, α 1 =α 2 , and α 1 and α 2 are approximately in the range from 3 degrees to 88 degrees.

11. The multi-view LCD according to claim 7 , wherein the LCD panel has a normal vector, the transmitting direction of the first plane light source forms an included angle α 1 with the normal vector, the transmitting direction of a second plane light source forms an included angle α 2 with the normal vector, α 1 ≠α 2 , α 1 is approximately in the range from 3 degrees to 88 degrees, and α 2 is approximately in the range from 3 degrees to 88 degrees.

12. The multi-view LCD according to claim 7 , wherein the first backlight module includes a first light conducting substrate and the second backlight module includes a second light conducting substrate, the first light conducting substrate includes a plurality of first micro grooves and the second light conducting substrate includes a plurality of second micro grooves different from the first micro grooves such that an included angle α formed between the transmitting directions of the first and the second plane light sources ranges from 6 degrees to 176 degrees.