| Affiliation: | 1. College of Electronics and Information Engineering, Sichuan University, Chengdu 610065, China;2. College of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing 100191, China;1. Institute of Logistics Science and Engineering, Shanghai Maritime University, Shanghai 201306, China;2. Anhui Longquan Silicon Materials Co.,Ltd, Huaiyuan, Anhui 233400, China;1. Key Laboratory of Digital Medical Engineering of Hebei Province, Baoding 071000, China;2. College of Electronic and Information Engineering, Hebei University, Baoding 071002, China;3. College of Physics Science and Technology, Hebei University, Baoding 071002, China |
| Abstract: | A photosensitive water-borne overcoat comprising poly(vinyl alcohol), a glycoluril crosslinker, and a water-soluble photoacid generator was developed. The passivation coating has two features: low-temperature processability and applicability to organic-solvent-susceptible films. Photo-exposure and subsequent baking at 85 °C and development with water produced PGMEA-insoluble and transparent overcoat patterns. Uncured color patterns that were susceptible to the PGMEA-based coating solution remained intact after water-based overcoat application. By exploiting the features of the passivation coating, color patterns of green, red, and white were produced onto a glass substrate at a process temperature of 85 °C. |
