P‐24: Impact of SD Vss on top of GOA for Narrow Side Bezel AMOLED Displays

Abstract

A 0.6 mm side Narrow Bezel Back-Plane (BP) was developed and applied in the 5.5 inch flexible AMOLED display for getting nearly 100% screen-to-body ratio. In order to achieve narrowbezel display, the VSS signal line on the side of GOA area, which was patterned at source/drain layer, has been patterned on the top of GOA area with an additional metal layer instead. By analyzing the impact of this second metal layer on top of GOA (gate drive on array), the structure of GOA area has been optimized, which raised up even narrower side bezel for 0.5 mm. Furthermore, an achievable BP process was developed and applied to realize the structure with better performance and reliability.