Illumination device and reflection type liquid crystal display device using the same

A reflection type liquid crystal display device including a liquid crystal display panel for displaying an image, and an illumination device disposed in a front of the liquid crystal display panel, the illumination device comprising:

• a light generator to generate a light;
• a first light guider including a first portion through which the light is incident and a second portion from which the light is emitted;
• and
• a second light guider including opposite first and second side portions, at least one of which is adjacent to the light generator, a light projecting portion adjacent to the first portion of the first light guilder and a light reflecting portion including a first inclined surface and a second inclined surface, the light projecting portion having a flat surface, a distance between the first inclined surface and the flat surface becoming narrow as an amount of a light flux emitted from the light generator decreases, a distance between the second inclined surface and the flat surface becoming narrow as an amount of light flux emitted from the light generator decreases.

An illuminating device comprising:

• a light generator to generate a light;
• a first light guider including a first portion through which the light is incident and
• a second portion from which the light is emitted;
• and
• a second light guider including opposite first and second portions, at least one of which is adjacent to the light generator, a light projecting portion adjacent to the first portion of the first light guider and a light reflecting portion including a first inclined surface and a second inclined surface, the light projecting portion having a flat surface, a distance between the first inclined surfaces and the flat surface becoming narrow as an amount of a light flux emitted from the input generator decreases, a distance between the second inclined surface and the flat surface becoming narrow as an amount of a light flux emitted from the light generator decreases,
• wherein the first and second inclined surface comprising a plurality of groove patterns.