| 摘要 |
A display apparatus (200) includes a substrate (218) and a number of light emitting diodes (LEDs) (202) coupled to the substrate. An optical element (215, 216, 217) such as a shroud or an integrator rod is located adjacent to at least one of the LEDs. In operation, the optical element and the LEDs are movable relative to one another so that the optical element is adjacent to different ones of the LEDs at different times. |
