| 摘要 |
An optical module is used in an electronic device to share a light source. The light source can be shared concurrently with an image projection device and a different component, such as a liquid crystal display device. Alternatively, the light source is used for providing illumination to the component only when the light source is not used by the image projection device. When the light source is used for providing illumination to the liquid crystal display device, at least part of the light beam from the light source is coupled to a back-light unit of the display device, for example. In addition to providing illumination to the liquid crystal display device, part of the light beam can also be used to provide illumination to other accessories or components, such as a keyboard of the electronic device. |
