Light alignment device and system

The invention discloses a light alignment device and a light alignment system. The light alignment device comprises a loader platform, an alignment light source, a polarizing film, and a temperature control part, wherein the loader platform comprises a bearing surface on which a glass substrate to be aligned is placed; the alignment light source is used for providing the light source used in alignment; the light source provided by the alignment light source forms demanded polarized lights during alignment by the polarizing film; the temperature control part is embedded in the loader platform and used for heating the glass substrate to be aligned according to the preset temperature so that the glass substrate can keep constant temperature. According to the device and the system, a temperature control part is added, thereby improving the alignment capability of the device, further improving the production efficiency and reducing energy consumption.