secondary display meaning in English

二次显示器

So far oled displays have appeared mostly in small devices such as music players and as the secondary display on the outside of mobile phones
目前为止， oled显示器大多应用于小型设备，诸如音乐播放器和手机外屏。
Many of these powers produce interesting visual effects above and beyond the standard secondary display , such as moving , melting , transforming , or blasting a target
该系许多异能都会产生比附属性异象更有趣的视觉效果，例如移动、融化、变形或爆破目标。