Polarizing edge-coupled light in backlight

A backlight apparatus includes a light emitting element configured to emit visible light and a polarization device including a prism positioned to receive and polarize the visible light to generate polarized light. The backlight apparatus further includes a light guide panel configured to receive the polarized light at an input surface facing the polarizing device and to distribute the polarized light to a major surface of the light guide panel facing the display screen. 一种背光装置，包括被配置为发射可见光的发光元件和包括棱镜的偏振设备，该棱镜被放置成接收可见光并使可见光偏振以产生偏振光。该背光装置进一步包括光导面板，该光导面板被配置为在面向偏振设备的输入表面处接收偏振光，并将偏振光分配到光导面板的面向显示屏的主表面。