| 摘要 |
A backlight module is provided. The backlight module includes a light source and a group of replaceable optical elements. The light source emits a first light. The replaceable optical elements receive the first light and backlight light is then excited, wherein the replaceable optical elements include a first replaceable optical element and a second replaceable optical element. The first replaceable optical element has a first phosphor. The first phosphor can be excited by light and emits second light. The second replaceable optical element has a second phosphor. The second phosphor can be excited by light and emits third light.
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