Abstract: The present application can provide a thin polarizing plate having excellent antireflection performance in all directions including the side as well as the front, and having excellent folding durability and durability against short wavelengths. In addition, the present application can provide an organic light-emitting display device to which the polarizing plate is applied and a display device comprising the same.

Abstract: An embodiment magnetorheological (MR) damper includes a stator including a solenoid coil to which a current is applicable, a rotor configured to rotate with respect to the stator, and an orifice disposed between the stator and the rotor, wherein the orifice is configured to allow fluids sealed in a first chamber and a second chamber defined by the stator and the rotor to communicate with each other.

Abstract: A display device is disclosed that includes a substrate, a first metal layer disposed on the substrate, an active layer disposed on the first metal layer, a second metal layer disposed on the active layer, a third metal layer disposed on the second metal layer, a fourth metal layer disposed on the third metal layer, and a transistor and a capacitor disposed on the substrate. The transistor includes a gate electrode disposed in at least any one of the first metal layer and the second metal layer, and a drain electrode, a source electrode and an active region disposed in the active layer, The capacitor includes a first capacitor including a first electrode disposed in the first metal layer and a second electrode disposed in the second metal layer, a second capacitor including the second electrode and a third electrode disposed in the third metal layer, and a third capacitor including the third electrode and a fourth electrode disposed in the fourth metal layer.

Abstract: A roof vent includes a roof disposed on a vehicle and a vent assembly. The vent assembly has at least one vent unit disposed on the roof and configured to enter the roof, a driving unit driving the vent unit, and at least one rack unit applying the driving force of the driving unit to the vent unit. The vent unit enters the roof due to operation of the driving unit.

Abstract: A roof vent includes a roof disposed on a vehicle and a vent assembly. The vent assembly includes at least one vent unit disposed on the roof and configured to be popped up to the interior of the vehicle, a driving unit driving the vent unit, and at least one rack unit applying driving force of the driving unit to the vent unit. The vent unit is popped up or tilted by the driving unit.

Abstract: A roof vent includes a roof disposed on a vehicle and a vent assembly. The vent assembly has at least one vent unit disposed on the roof and configured to enter the roof, a driving unit driving the vent unit, and at least one rack unit applying the driving force of the driving unit to the vent unit. The vent unit enters the roof due to operation of the driving unit.

Abstract: A roof vent includes a roof disposed on a vehicle and a vent assembly. The vent assembly includes at least one vent unit disposed on the roof and configured to be popped up to the interior of the vehicle, a driving unit driving the vent unit, and at least one rack unit applying driving force of the driving unit to the vent unit. The vent unit is popped up or tilted by the driving unit.

Abstract: An air vent structure may include spacers mounted at sides of an outlet of an air duct; a single horizontal wing, and an upper and lower horizontal wings that have hinge grooves to which hinge pins of the spacer are inserted and formed in front side portions of the horizontal wings and positioned in horizontally in the outlet, the upper and lower horizontal wings being disposed above and below the single horizontal wing; a main link having a front end portion which a first hinge end portion hinged to a rear portion of both side surfaces of the respective horizontal wings and a rear end portion in which a second hinge end portion is formed at upper and lower portions in the rear end portion; an auxiliary wing connected to the slot of the spacer and the second hinge end portion of the main link; and a dummy wing covering the spacer.

Abstract: A device for opening and closing a damper using a knob of an air vent in a vehicle includes: a wing knob coupled to a horizontal wing mounted in an outlet of an air duct such that the wing knob is slidably movable on the horizontal wing; a first rack gear formed on a rear surface of the wing knob; a transfer gear body meshing with the first rack gear and rotatably mounted on upper and lower vertical wing support frames; a cam gear coaxially and rotatably connected to a lower portion of the transfer gear body; a slider mounted to a bottom surface of the air duct such that the slider is movable in a forward or backward direction on the bottom surface of the air duct, wherein the slider moves forward or backward while contacting the cam gear at a time of rotation of the cam gear; second rack gears formed at both side surfaces of the slider; and damper gears meshing with the second rack gears and rotatably mounted on the bottom surface of the air duct.

Abstract: An air vent structure may include spacers mounted at sides of an outlet of an air duct; a single horizontal wing, and an upper and lower horizontal wings that have hinge grooves to which hinge pins of the spacer are inserted and formed in front side portions of the horizontal wings and positioned in horizontally in the outlet, the upper and lower horizontal wings being disposed above and below the single horizontal wing; a main link having a front end portion which a first hinge end portion hinged to a rear portion of both side surfaces of the respective horizontal wings and a rear end portion in which a second hinge end portion is formed at upper and lower portions in the rear end portion; an auxiliary wing connected to the slot of the spacer and the second hinge end portion of the main link; and a dummy wing covering the spacer.

Abstract: A device for opening and closing a damper using a knob of an air vent in a vehicle includes: a wing knob coupled to a horizontal wing mounted in an outlet of an air duct such that the wing knob is slidably movable on the horizontal wing; a first rack gear formed on a rear surface of the wing knob; a transfer gear body meshing with the first rack gear and rotatably mounted on upper and lower vertical wing support frames; a cam gear coaxially and rotatably connected to a lower portion of the transfer gear body; a slider mounted to a bottom surface of the air duct such that the slider is movable in a forward or backward direction on the bottom surface of the air duct, wherein the slider moves forward or backward while contacting the cam gear at a time of rotation of the cam gear; second rack gears formed at both side surfaces of the slider; and damper gears meshing with the second rack gears and rotatably mounted on the bottom surface of the air duct.