OPTICAL COUPLING DEVICE AND BACKLIGHT MODULE

摘要

An optical coupling device is used for optically coupling light sources with a light guide plate. The optical coupling device includes transparent light guide portions. Each light guide portion has a light incident surface, a light emitting surface, a top surface, and a bottom surface. The light incident surface is opposite to the light emitting surface. The top surface is opposite to the bottom surface. Along a direction perpendicular to the top surface, a thickness of the light incident surface is greater than a thickness of the light emitting surface. The light incident surface is optically coupled with a corresponding one of the light sources. The light emitting surface is optically coupled with the light guide plate.

主权项

1. An optical coupling device for optically coupling a plurality of light sources with a light guide plate, the optical coupling device comprising:
a plurality of transparent light guide portions, each of the light guide portions comprising:
a light incident surface;a light emitting surface opposite to the light incident surface;a top surface perpendicularly connected to the light incident surface and the light emitting surface; anda bottom surface opposite to the top surface;wherein along a direction perpendicular to the top surface, a thickness of the light incident surface is greater than a thickness of the light emitting surface, the light incident surface is configured to optically couple with a respective one of the light sources, and the light emitting surface is configured to optically couple with the light guide plate.