Display device having a first polarization layer comprising an isotropic macromolecular material and a second polarizer layer comprising a macromolecular material having a positive birefringence, the first and second polarizers layers stacked on each other

A display device, comprising:

• a display panel comprising:
• a first substrate, a second substrate facing the first substrate, a liquid crystal layer disposed between the first substrate and the second substrate, a first polarizer disposed on a lower surface of the first substrate and including a first polarizing layer and a second polarizing layer stacked on each other, a second polarizer disposed on an upper surface of the second substrate, and a viewing angle control layer disposed on the first polarizer,
• wherein the viewing angle control layer is configured to a viewing angle of a column direction of the display panel;
• and
• a backlight assembly configured to provide a light to the display panel,
• wherein the viewing angle control layer comprises a pattern retarder,
• wherein the pattern retarder comprises:
• a base layer having a birefringence;
• a pattern retarding layer disposed on a lower surface of the base layer and including patterns having a different optical axis from each other;
• and
• an adhesive layer disposed on a lower surface of the pattern retarding layer,
• wherein the pattern retarding layer comprises:
• a first retarder configured to convert a first light to a first polarization;
• a second retarder configured to convert a second light to a second polarization;
• and
• a black matrix disposed on lower surfaces of the first retarder and the second retarder to cover boundary portions between the first retarder and the second retarder, and
• wherein the black matrix makes contact with the lower surfaces of the first and second retarders, and
• wherein the first polarizing layer of the first polarizer comprises an isotropic macromolecular material and the second polarizing layer of the first polarizer comprises a macromolecular material having a positive birefringence.

A display device, comprising:

• a display panel comprising:
• a first substrate, a second substrate facing the first substrate, a liquid crystal layer disposed between the first substrate and the second substrate, a first polarizer disposed on a lower surface of the first substrate and including a first polarizing layer and a second polarizing layer stacked on each other, a second polarizer disposed on an upper surface of the second substrate, and a viewing angle control layer disposed on the first polarizer,
• wherein the viewing angle control layer is configured to control a viewing angle of a column direction of the display panel, an optical sheet disposed on a lower surface of the first polarizer;
• and
• a backlight assembly disposed on a lower surface of the optical sheet and configured to provide a light to the display panel,
• wherein the viewing angle control layer comprises a pattern retarder,
• wherein the pattern retarder comprises:
• a base layer having a birefringence;
• a pattern retarding layer disposed on a lower surface of the base layer and including patterns having a different optical axis from each other;
• and
• an adhesive layer disposed on a lower surface of the pattern retarding layer,
• wherein the pattern retarding layer comprises:
• a first retarder configured to convert a first light to a first polarization;
• a second retarder configured to convert a second light to a second polarization;
• and
• a black matrix disposed on lower surfaces of the first retarder and the second retarder to cover boundary portions between the first retarder and the second retarder, and
• wherein the black matrix makes contact with the lower surfaces of the first and second retarders, and
• wherein the first polarizing layer of the first polarizer comprises an isotropic macromolecular material and the second polarizing layer of the first polarizer comprises a macromolecular material having a positive birefringence.