60‐5: Late‐News Paper: 17‐inch Transparent AMOLED Display With Self‐Assembled Auxiliary Electrode

Abstract

A novel top electrode (e.g., cathode) patterning technology using self-assembly has been developed. The fabrication process is compatible with existing vacuum thermal evaporation techniques used in AMOLED mass production. The minimum feature size of the patterned electrode is demonstrated down to <6 μm. This method can be used to fabricate an auxiliary electrode on the top of an AMOLED display with sheet resistance < 1 Ω/□ and without damaging the sensitive front plane. Applications include reducing the IR drop in medium to large size panels and improving the performance of transparent AMOLED displays. A 17-inch transparent AMOLED display panel with >60% transmission and improved performance was demonstrated using this technique.

23‐3: Self‐Assembled Cathode Patterning for Micro‐Welding in Top‐Emission AMOLED Displays to Reduce IR Drop

“…Recently, we have introduced a novel mass production ready and damage-free patterning technology, ConducTorr TM , to pattern a proprietary metal material (Cathode Electrode Material or CEM) by a matching Cathode Patterning Material (CPM) based on a self-assembly process. [6] Applications such as Under Display Camera and Transparent OLED panels enabled by the ConducTorr TM process have also been shown in our previous works. The key feature of this patterning process is the CEM will only be deposited on the area without CPM material.…”

10.2: Invited Paper: Independent Device Optimization for RGB with Self‐assembled Cathode Patterning

“…Previously, we have proposed a novel ConducTorr TM top electrode patterning technology to fabricate auxiliary electrode to solve the IR drop problems. [2] Herein, we show that this ConducTorr TM can also be applied to independently optimize device performance with different colors.…”

Self‐Assembled Cathode Patterning in AMOLEDs

“…Recently, we introduced a novel mass production‐ready and damage‐free technology, ConducTorr, to pattern a proprietary metal material (cathode electrode material or CEM) by a matching cathode patterning material (CPM), 1,2 where the CEM showed similar device performance to a traditional Mg:Ag cathode. This patterning process involves two steps: depositing the CPM through a fine metal mask (FMM, using standard OLED evaporation equipment) to define the area without a cathode, followed by deposition of the metal over the entire surface.…”