Fine shadow mask assembly for an active matrix organic light emitting diode (amoled) and fine shadow mask assembly manufacturing method

A fine shadow mask assembly manufacturing method for an active matrix organic light emitting diode (AMOLED), comprising:

• a shadow mask frame providing step, providing a shadow mask frame;
• a longitudinal supporting bar disposing step, disposing a plurality of longitudinal supporting bars on the shadow mask frame, wherein each of the longitudinal supporting bars comprises a circular rod portion and two flat portions, the two flat portions are formed on two ends of the circular rod portion and are disposed on a top edge of the shadow mask frame;
• a transverse spacer plates disposing step, disposing a plurality of transverse spacer plates on the circular rod portions of the longitudinal supporting bars, wherein the transverse spacer plates intersect the longitudinal supporting bars;
• and
• a shadow mask plate disposing step, disposing a plurality of shadow mask plates on the transverse spacer plates, wherein each of the transverse spacer plates is located under a gap between adjacent two of the shadow mask plates, contacts the adjacent two of the shadow mask plates, and covers the gap.

A fine shadow mask assembly for an active matrix organic light emitting diode (AMOLED), comprising:

• a shadow mask frame;
• a plurality of longitudinal supporting bars disposed on the shadow mask frame and arrange at intervals, each of the longitudinal supporting bars comprising a circular rod portion and two flat portions, and the two flat portions formed on two ends of the circular rod portion respectively, disposed on a top edge of the shadow mask frame, and located at two opposite sides of the shadow mask frame respectively;
• a plurality of transverse spacer plates disposed on the circular rod portions of the longitudinal supporting bars, supported by the longitudinal supporting bars, intersecting the longitudinal supporting bars, and arranged at intervals;
• and
• a plurality of shadow mask plates disposed on the transverse spacer plates, supported by the longitudinal supporting bars, and paralleling the transverse spacer plates, wherein each of the transverse spacer plates is located under a gap between adjacent two of the shadow mask plates, contacts the adjacent two of the shadow mask plates, and covers the gap;
• wherein pairs of fixing notches are defined in the shadow mask frame, the pairs of the fixing notches correspond to the longitudinal supporting bars, the two fixing notches of each pair are defined in the top edge of the shadow mask frame, are located on the two opposite sides of the shadow mask frame respectively, and fix and receive the two flat portions of a corresponding one of the longitudinal supporting bars;
• wherein a top edge of the circular rod portion of each of the longitudinal supporting bars is flush with the top edge of the shadow mask frame;
• wherein a diameter of the circular rod portion of each of the longitudinal supporting bars is greater than a thickness of the flat portion;
• wherein the diameter of the circular rod portion of each of the longitudinal supporting bars is less than a width of the flat portion;
• wherein each of the flat portions of each of the longitudinal supporting bars comprises a truncated distal end.