Total internal reflection side emitting coupling device

A light-emitting device, comprising:

• at least one light source;
• and
• a coupling lens for covering the light source and guiding light from the light source,
• wherein the coupling lens comprises a collimation lens surface for collimating a first portion of the light from light source to a first direction;
• a first lens surface for total internal reflection of a second portion of the light from light source to the first direction;
• and a second lens surface for total internal reflection of light from the first direction to a second direction of both the light collimated by the collimating lens surface and the light totally internally reflected by the first lens surface.

A light-emitting backlight system, comprising:

• a plurality of light-emitting devices for providing light;
• and
• a light guide with a plurality of side surfaces, a bottom surface and a transparent upper surface,
• wherein the bottom surface comprises a plurality of patterns for diffusing light from the plurality of light-emitting devices, coupling light from the plurality of light-emitting devices to the light guide and emitting through a upper surface;
• wherein the plurality of light emitting devices comprises:
• at least one light source;
• and
• a coupling lens for covering the light source and guiding light from the light source,
• wherein the coupling lens comprises a collimation lens for collimating light from light source to a first direction;
• a first lens surface for total internal reflecting light from light source to the first direction;
• and a second lens surface for total internal reflecting light from the first direction to a second direction.

A multiblock backlight system, comprising:

• a plurality of light emitting devices for providing light;
• a plurality of light guides with a plurality of side surfaces, a bottom surface and a transparent upper surface, wherein the bottom surface comprises a plurality of patterns for diffusing light from the plurality of light-emitting diode devices, coupling light from the plurality of light emitting devices to the light guide and emitting out through a upper surface;
• and
• a plurality of reflector sheets, for surrounding each of the plurality of light guides,
• wherein each of the plurality of lighting guides comprises at least one light emitting device with each providing uniform brightness light;
• wherein at least one light emitting device comprises:
• at least one light source;
• and
• at least one coupling lens for covering the light-emitting diode chip and guiding light from the light source,
• wherein the coupling lens comprises a collimation lens for collimating light from light source to a first direction;
• a first lens surface for total internal reflecting light from light source to the first direction;
• and a second lens surface for total internal reflecting light from the first direction to a second direction.