Stereoscopic Display Apparatus

1. A stereoscopic display apparatus comprising:

a display unit displaying an image that is linearly polarized in one direction;

a stereoscopic filter disposed in front of the display unit to allow light emitted from the display unit to transmit through the stereoscopic filter and having a first area and a second area in which light having a wavelength λG is phase delayed by λG/4 and a phase delay axis of the first area and a phase delay axis of the second area cross each other; and

a phase correction plate disposed in front of the display unit to allow light emitted from the display unit to transmit through the phase correction plate and phase-delaying light having the wavelength λG by λG/4,

wherein an amount of phase delay of light having a wavelength λ other than the wavelength λG that passes through the stereoscopic filter and an amount of phase delay of light having a wavelength λ other than the wavelength λG that passes through the phase correction plate are opposite to each other by λ/4.

2. The stereoscopic display apparatus of claim 1, wherein the phase delay axis of the first area of the stereoscopic filter and the one direction of the linearly polarized light emitted by the display unit form an angle of 45°.

3. The stereoscopic display apparatus of claim 1, wherein the phase delay axis of the phase correction plate is parallel to the phase delay axis of the first area of the stereoscopic filter.

4. The stereoscopic display apparatus of claim 3, wherein light having the wavelength λG that is emitted from the display unit and passes through the first area of the stereoscopic filter and the phase correction plate is linearly polarized in a direction perpendicular to the one direction.

5. The stereoscopic display apparatus of claim 3, wherein the phase delay axis of the first area and the phase delay axis of the second area of the stereoscopic filter are perpendicular to each other.

6. The stereoscopic display apparatus of claim 5, wherein light having the wavelength λG that is emitted from the display unit and passes through the second area of the stereoscopic filter and the phase correction plate is linearly polarized in a direction parallel to the one direction.

7. The stereoscopic display apparatus of claim 1, wherein, when an amount of phase delay of light having a wavelength λ other than the wavelength λG that passes through the stereoscopic filter is larger than λ/4, an amount of phase delay of the light having a wavelength λ other than the wavelength λG that passes through the phase correction plate is smaller than λ/4, and when an amount of phase delay of light having a wavelength λ other than the wavelength λG that passes through the stereoscopic filter is smaller than λ/4, an amount of phase delay of the light having a wavelength λ other than the wavelength λG that passes through the phase correction plate is larger than λ/4.

8. A stereoscopic display apparatus comprising:

a display unit displaying an image that is linearly polarized in one direction;

a stereoscopic filter disposed in front of the display unit to allow light emitted from the display unit to transmit through the stereoscopic filter and having a first area and a second area in which light having a wavelength λG is phase delayed by a second amount of phase delay and a phase delay axis of the first area and a phase delay axis of the second area cross each other; and

a phase correction plate disposed in front of the display unit to allow light emitted from the display unit to transmit through the phase correction plate and phase-delaying light having the wavelength λG by a first amount of phase delay, wherein an amount of phase delay of light having a wavelength λ other than the wavelength λG that passes through the phase correction plate is larger than an amount of phase delay of light having a wavelength λ other than the wavelength λG that passes through the stereoscopic filter.

9. The stereoscopic display apparatus of claim 8, wherein the phase delay axis of the first area of the stereoscopic filter and the one direction of the linearly polarized light emitted by the display unit form an angle of 45°.

10. The stereoscopic display apparatus of claim 9, wherein the phase delay axis of the phase correction plate is parallel to the phase delay axis of the first area of the stereoscopic filter.

11. The stereoscopic display apparatus of claim 10, wherein light having the wavelength λG that is emitted from the display unit and passes through the first area of the stereoscopic filter and the phase correction plate is linearly polarized in a direction perpendicular to the one direction.

12. The stereoscopic display apparatus of claim 10, wherein the phase delay axis of the first area and the phase delay axis of the second area of the stereoscopic filter are perpendicular to each other.

13. The stereoscopic display apparatus of claim 12, wherein light having the wavelength λG that is emitted from the display unit and passes through the second area of the stereoscopic filter and the phase correction plate is linearly polarized in a direction parallel to the one direction.

14. The stereoscopic display apparatus of claim 1, further comprising stereoscopic glasses that a viewer can wear, wherein one of a left-eye lens and a right-eye lens of the stereoscopic glasses allows light that is linearly polarized in the one direction to pass through the one lens, and the other one thereof allows light that is linearly polarized in a direction perpendicular to the one direction to pass through the other lens.

15. The stereoscopic display apparatus of claim 8 , further comprising stereoscopic glasses that a viewer can wear, wherein one of a left-eye lens and a right-eye lens of the stereoscopic glasses allows light that is linearly polarized in the one direction to pass through the one lens, and the other one thereof allows light that is linearly polarized in a direction perpendicular to the one direction to pass through the other lens.