Patent ID: 7461663

Claim:
A cleaning apparatus cleaning a deposition mask used for depositing organic electroluminescent materials, comprising: a cleaning tank containing a cleaning solution therein and configured to receive the deposition mask for cleaning; a vacuum evaporator receiving the cleaning solution from the cleaning tank and evaporating the cleaning solution in a vacuum; a first cooler cooling the cleaning solution evaporated by the vacuum evaporator; a first return pipe returning the cleaning solution cooled by the first cooler to the cleaning tank; a rinse tank containing a rinse solution therein and configured to receive the deposition mask cleaned in the cleaning tank; an atmospheric evaporator receiving the rinse solution from the rinse tank and evaporating the rinse solution in an atmospheric pressure; a second cooler cooling the rinse solution evaporated by the atmospheric evaporator; and a second return pipe returning the rinse solution cooled by the second cooler to the rinse tank.