Making and using compacted pellets for OLED displays

Coating processes – Electrical product produced – Fluorescent or phosphorescent base coating

Reexamination Certificate

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C427S255230, C427S294000

Reexamination Certificate

active

10384290

ABSTRACT:
A method of forming a compacted pellet of organic materials adaptable for making an organic layer on a structure which will form part of an OLED display, includes providing a sublimable organic material in a powder form; providing a thermally insulating and non-sublimable inorganic material in a powder form; forming a mixture of the sublimable organic powder and thermally insulating and non-sublimable inorganic powder; placing such mixture into a die and using two punches, a lower and an upper punch, to apply sufficient pressure to the mixture to cause the mixture of powders to consolidate into a solid pellet; applying heat to the die during or prior to applying pressure by the opposing punches to aid in causing the mixture of powders to consolidate into a solid compacted pellet, and removing the pellet from the die.

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“27.2: Linear source Deposition of Organic Layers for Full-Color OLED” by Steven VanSlyke et al., SID 2002 Digest, pp. 886-889.

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