Patent ID: 8817084

Claim:
A display device that satisfies the following Formula 1 and that comprises: a displaying part comprising a region for generating a signal for a right eye, configured to generate the signal for the right eye; a region for generating a signal for a left eye, configured to generate the signal for the left eye; and a first light-penetration-controlling region that is adjacent to the regions for generating the signals for the right eye and the left eye; and a filtering part comprising a polarization state-controlling region that comprises a region for controlling the polarization state of a signal for a right eye in a position into which the signal for the right eye can enter, and a region for controlling the polarization state of a signal for a left eye in a position into which the signal for the left eye can enter; and a second light-penetration-controlling region that is adjacent to the regions for controlling the polarization states of the signals for the right eye and the left eye: H 1 +H 2 ≦( P L +P R )/2 [Formula 1] wherein H 1 and H 2 are the widths of the first and second light-penetration-controlling regions, respectively, and P L and P R are the widths of the regions for controlling the polarization states of the signals for the left eye and the right eye, respectively.