利用共軛高分子發光二極體作圖樣化設計是一個十分新穎的概念，目前並沒有相關的研究成果或產品問世。要利用低成本的溶液製程來製作圖樣化發光二極體可說是十分困難，而將其推展到多層結構更是一大難題，在此我提出一個發展多層圖樣化共軛高分子發光二極體的製程方法：利用刮刀塗布技術搭配遮罩，但遮罩會產生溶液側漏的問題，因此我選定polydimethylsiloxane(PDMS)來製作遮罩(mask)，由於PDMS具有良好的彈性與密合性，並不會傷害有機發光薄膜，十分適合用來作為遮罩。我們發展的多層圖樣化共軛高分子發光二極體，在同一種背景光色中(如藍色)可以發出其他不同顏色的色光(如黃光) ，利用了刮刀技術搭配PDMS mask，我們可輕易定義發光區域以及發光顏色。此一方法具備了低成本、製程步驟簡單、光色均勻、亮度高……等優點。
圖樣化元件與標準片的亮度和效率十分接近，效率分別為1.78 cd/A和1.56 cd/A，亮度分別為4133 cd/m2和3893 cd/m2，證明了PDMS mask確實不會對有機薄膜造成影響。

Multilayer structure polymer light-emitting diodes (PLEDs) with a patterned second emission layer are presented. We utilize polydimethylsiloxane (PDMS) mask combined with blade coating method to fabricate multilayer patterned PLEDs by solution process. Multilayer structure and patterned emission layer are achieved by blade coating and a PDMS mask, respectively.
Owing to the elasticity and good adhesion of PDMS mask, it can stick on the first emission layer very tightly without any damage on the emission layer. The second emission layer is then blade coated with a designed pattern by the PDMS layer; therefore, the solution can be enclosed by the patterned PDMS layer to form a uniform organic layer. We can easily define the emission region and colors with such method, which leads to dual-color, uniform and patterned PLEDs.
The current efficiency of patterned and standard device are 1.78 cd/A and 1.56 cd/A, and the luminance of patterned and standard device are 4133 cd/m2 and 3893 cd/m2. Therefore, device performance of patterned PLEDs is comparable to that of a standard one. PDMS mask certainly does no significant damage on the organic layer.

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