This work was supported by the National Science Council of Taiwan under Grants NSC 97-2221-E-006-241-MY3;
NSC;
100-3113-E-006-015;
100-2120-M-006-001;
and NSC 101-3113-E-006-014 and by the Display Technology Center;
Industrial Technology Research Institute of Taiwan;
under Grant 100-C-073;