SHADOW MASK USING A LASER MACHINING CAPABLE OF MINIMIZING THE DEFORMATION OF THE MASK CAUSED BY HEAT IN DEPOSITING AND A SHADOW MASK MANUFACTURING METHOD

摘要

PURPOSE: A shadow mask using a laser machining and a shadow mask manufacturing method is provided to enable to improve yield by easily forming a taper angle of a mask opening or omitting a taper angle forming process.;CONSTITUTION: A shadow mask using a laser machining comprises a mask cell, a mask pattern unit, and a dummy pattern. The cell is formed into a dot or a slit shape for depositing color picture elements. A plurality of cells forms one pattern on the mask pattern unit. The pattern is arranged according to the size of a frame utilized in depositing. A dummy step of constant thickness is formed in the lower part of the mask pattern unit.;COPYRIGHT KIPO 2013