Method of making a solid compacted pellet of organic material for vacuum deposition of OLED displays
AssigneeEastman Kodak Company
InventorsDonn B. Carlton, Syamal K. Ghosh, Tukaram K. Hatwar
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Abstract
A solid compacted pellet of organic material for use in a vapor deposition source, and a method of making same is disclosed. The solid compacted pellet includes: a support member for permitting rotation of the pellet, or transmitting cooling fluid, or both; and a compacted solid core of organic material molded onto and about the support member.
Claims6
A method of forming solid compacted pellet of organic material for use in a vapor deposition source, comprising the steps of:
- (a) providing a cooling tube;
- and
- (b) compacting organic material to mold such material into a solid form about the cooling tube.
A method of forming a pellet of solid compacted organic material adapted for vapor deposition of organic layer on a structure which will form part of an organic light-emitting diode display, comprising the steps of:
- (a) providing a die defining a cavity and a first and second punches in opposite sides of the cavity and movable into such cavity, the first and second punches each having corresponding openings for receiving a cooling tube;
- (b) providing a metal cooling tube and placing organic material in a powder form inside the die cavity over the first punch and around the metal cooling tube;
- and
- (c) applying sufficient heat by a heating source and pressure by the punches to the organic material in the die cavity to compact the organic material into a solid compacted pellet molded about the cooling tube.
Dependencies are inferred from the claim text.