Nozzle apparatus for organic light emitting device
A nozzle apparatus for an organic light emitting device. The nozzle apparatus includes a nozzle and a pressure regulator. The nozzle discharges organic solution onto a substrate. The pressure regulator controls a discharging quantity of the organic solution through the nozzle. The discharging quantity of the organic solution is minutely controlled through adjusting a length of the nozzle. Therefore, the nozzle apparatus can precisely achieve a small amount of low-viscosity organic solution being discharged onto a substrate to form an organic layer with reduced thickness and narrow width.
1 . A nozzle apparatus, comprising:
a nozzle adapted to discharge a solution; and
a pressure regulator adapted to control a discharging quantity of the solution through the nozzle, wherein the discharging quantity of the solution is controlled by adjusting a length of the nozzle.
2 . The nozzle apparatus of claim 1 , wherein the nozzle includes a plurality of bent portions.
3 . The nozzle apparatus of claim 2 , wherein the nozzle includes a zig-zag portion.
4 . The nozzle apparatus of claim 2 , wherein the nozzle includes a spiral portion.
5 . The nozzle apparatus of claim 2 , wherein the nozzle includes a serpentine portion.
6 . The nozzle apparatus of claim 1 , wherein the nozzle is of a straight shape.
7 . The nozzle apparatus of claim 1 , wherein the pressure regulator is a gas pressure regulator.
8 . The nozzle apparatus of claim 7 , further comprising a cylinder adapted to hold the solution, wherein the pressure regulator is adapted to pressurize the solution held in the cylinder so that the solution can be discharged through the nozzle.
9 . The nozzle apparatus of claim 1 , wherein the pressure regulator is a liquid pressure regulator.
10 . The nozzle apparatus of claim 1 , further comprising a nozzle conveyor adapted to move the nozzle.
11 . The nozzle apparatus of claim 1 , wherein the nozzle includes a plurality of curved portions.
12 . The nozzle apparatus of claim 8 , the nozzle being attached to the cylinder by a nozzle connector, a distance between the nozzle connector and a substrate onto which the solution is deposited being 1 mm and a length of the nozzle being in excess of 10 mm.
13 . The nozzle apparatus of claim 1 , a length of displacement of solution through the nozzle being 1 mm and a length of the nozzle being in excess of 10 mm.
14 . The nozzle apparatus of claim 1 , a length of displacement of solution through the nozzle being 1 mm and a length of the nozzle being in excess of 10 mm.