求翻译：OLED技术优点之一是具有较高的能源利用效率。此次用于车辆顶棚照明的新型OLED材料厚度仅为1.8毫米，而且可保持透明状态。与传统的点照明方式相比，利用该新型技术可以为驾驶者在车内提供全空间无阴影的柔和照明。是什么意思？

one of the the oled technical advantages with higher energy efficiency. This is used to the vehicle ceiling lighting, new the oled materials thickness is only 1.8 mm, and can be transparent state. Compared with the traditional point of lighting the way, the new technology for the driver in the car t

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