Stereo display apparatus and lens array thereof

1. A stereo display apparatus, comprising:

a pixel array comprising a plurality of pixel units arrayed in parallel rows and parallel columns without staggering; and

a lens array covering the pixel array, the lens array comprising a plurality of lenticular lens units arrayed in said rows and columns, the lenticular lens units being parallel to each other and each lenticular lens unit covers at least two adjacent pixels in a same row;

wherein the adjacent lenticular lens units arrayed in columns have a stagger arrangement along a first direction along which the pixel units are arrayed in rows, thereby the adjacent lenticular lens units arrayed in columns are arranged in terraced steps and a series of sequentially terraced lenticular lens units, each from a separate row, form an equivalent lenticular lens unit at a tilted angle over corresponding non-staggering pixels of the pixel array; and

wherein the lens array is a liquid crystal lens array.

2. The stereo display apparatus of claim 1 , wherein at least one lenticular lens unit covers n pixel units along the first direction and r pixel units along a second direction along which the pixel units are arrayed in columns, and the adjacent lenticular lens units arrayed along the second direction have a stagger arrangement along the first direction, and a stagger step therebetween equals to a width of m pixel units as measured along the first direction, wherein n represents a positive integer greater than 2 or equals to 2, m represents a positive integer less than n, and r represents a positive integer greater than 1 or equals to 1.

3. The stereo display apparatus of claim 2 , wherein the pixel units alternately display at least two images along the first direction, and the n represents a quantity of the images displayed along the first direction by the pixel units arranged in the same row, and the m represents a quantity of the pixel units forming a stagger step between every two adjacent images displayed along the second direction.

4. The stereo display apparatus of claim 1 , wherein the liquid crystal lens array comprises a plurality of groups of working electrodes arrayed along the second direction, and the working electrodes of different groups are spaced from each other and have a stagger arrangement along the first direction, and the adjacent working electrodes of the same group along the second direction have a stagger arrangement to form the plurality of lenticular lens units such that the terraced equivalent lenticular lens unit can be dynamically created and the terraced equivalent lenticular lens unit can be dynamically shifted along the second direction by one pixel.

5. The stereo display apparatus of claim 4 , wherein the working electrodes extend along the second direction to an edge where the pixel units of adjacent columns meet.

6. The stereo display apparatus of claim 4 , wherein the liquid crystal lens array further comprises a plurality of connection electrodes, and the connection electrodes connect the working electrodes of the same group, respectively.

7. The stereo display apparatus of claim 4 , wherein the liquid crystal lens array further comprises a common electrode arranged spaced from the working electrodes, and a liquid crystal layer arranged between the common electrode and the working electrodes.

8. The stereo display apparatus of claim 7 , wherein the common electrode receives a reference voltage, the working electrodes receive corresponding operating voltages, respectively, and liquid crystal molecules of the liquid crystal are oriented to form the lenticular lens units.

9. The stereo display apparatus of claim 8 , wherein an arrangement of the lenticular lens unit is rearranged when the operating voltages change.

10. A lens array for a stereo display apparatus containing a pixel array comprising a plurality of pixel units arrayed in parallel rows and parallel columns without staggering, comprising:

a plurality of lenticular lens units arrayed in rows and columns, the lenticular lens units being parallel to each other and each lenticular lens unit covers at least two adjacent pixels in a same row;

wherein the adjacent lenticular lens units arrayed in columns have a stagger arrangement along a first direction along which the lenticular lens units are arrayed in rows, thereby the adjacent lenticular lens units arrayed in columns are arranged in terraced steps and a series of sequentially terraced lenticular lens units, each from a separate row, form an equivalent lenticular lens unit at a tilted angle over corresponding non-staggering pixels of the pixel array; and

wherein the lens array is a liquid crystal lens array.

11. The lens array of claim 10 , wherein the liquid crystal lens array comprises a plurality of groups of working electrodes arrayed along the second direction, and the working electrodes of different groups are spaced from each other and have a stagger arrangement along the first direction, and the adjacent working electrodes of the same group along the second direction have a stagger arrangement to form the plurality of lenticular lens units such that the terraced equivalent lenticular lens unit can be dynamically created and terraced equivalent lenticular lens unit can be dynamically shifted along the second direction by one pixel.

12. The lens array of claim 11 , wherein the working electrode extends along the second direction to an edge where the lenticular lens units of adjacent columns meet.

13. The lens array of claim 11 , wherein the liquid crystal lens array further comprises a plurality of connection electrodes, and the connection electrodes connect to the working electrodes of the same group, respectively.

14. The lens array of claim 11 , wherein the liquid crystal lens array further comprises a common electrode arranged spaced from the working electrodes, and a liquid crystal layer arranged between the common electrode and the working electrodes.

15. The lens array of claim 14 , wherein the common electrode receives a reference voltage, the working electrodes receive corresponding operating voltages, respectively, and liquid crystal molecules of the liquid crystal are oriented to form the lenticular lens units.

16. The lens array of claim 15 , wherein a position of the lenticular lens unit varies when the operating voltages are changed.