Image display and light source unit

An image display system comprising:

• a liquid crystal display panel which can transmit light irradiated from behind;
• a light source for irradiating a light having a specific polarization and a light having a polarization axis orthogonal to the specific polarization onto the liquid crystal display panel, a filter disposed between the liquid crystal display panel and the light source and comprises first areas for transmitting the light having the specific polarization and second areas for transmitting the light having the polarization axis orthogonal to the specific polarization disposed repeatedly in the vertical direction;
• the light source comprising a light emitting source for emitting light which has no specific polarization, polarizing means for turning the light which has no specific polarization in into the forms of the light having the specific polarization and the light having the polarization in which the polarization axis is orthogonal to the polarization axis of the specific polarization to output the lights, optical means for refracting the lights-having the different polarizations into the directions toward the left and right eyes respectively and irradiating the same onto the liquid crystal display panel, characterized-in that the light-emitting source is a linear light-emitting source which is disposed in the lateral direction with respect to the liquid crystal display panel so that a light source member for displaying three-dimensional images comes to the center portion and light source members for enlarging viewing angle come to both sides, the linear light-emitting source comprises center prisms which increase brightness by narrowing the irradiating range of the linear light-emitting source at the center portion of the linear light-emitting source, and peripheral prisms having a different brightness from the center prisms disposed at both ends of the linear light-emitting source.