Title :
A simple and high quality multigap color filter
Author :
Shiu, Jyh-Wen ; Ting, DaiLiang ; Liu, Chung-Yung ; Chao, Ching-Her ; Chuang, Hseang-Ru ; Chang, Ching-Yang
Author_Institution :
Electron. Res. & Service Organ., Ind. Technol. Res. Inst., Hsinchu, Taiwan
Abstract :
We have developed a high quality and simplified multigap color filter (MCF). A multigap LCD is effective for reduction of color dispersion and improvement of viewing angle. A MCF is achieved by applying a single-layer of transparent positive type photo resist to the multigap color filter. The gap difference is easily determined by controlling amount of the UV exposure. The high degree of flatness of the MCF, compared to that obtained by a double-layer transparent negative type photo resist, is shown. Investigation of the influence of post exposure process on the transmittance is also reported. The high quality, simplified MCF with only one additional coating of photo resist to color filter is easy to apply to many types of LCD, such as OCB and normally black TN for performance improvement
Keywords :
colour displays; light transmission; liquid crystal displays; optical films; optical filters; photoresists; OCB; UV exposure; coating; color dispersion; gap difference; high quality multigap color filter; multigap LCD; performance improvement; post exposure process; single-layer; transmittance; transparent positive type photoresist; viewing angle; Chaos; Coatings; Computer displays; Dispersion; Filters; Personal digital assistants; Resists; Temperature; Thickness control; Thin film transistors;
Conference_Titel :
Information Display, 1999. ASID '99. Proceedings of the 5th Asian Symposium on
Conference_Location :
Hsinchu
Print_ISBN :
957-97347-9-8
DOI :
10.1109/ASID.1999.762779