Development of functional diffusion sheet for liquid crystal display using new laser microprocessing technology

• Project/Area Number: 23560882
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Material processing/treatments
• Research Institution: Nagaoka National College of Technology
• Principal Investigator: NAKAMURA Susumu 長岡工業高等専門学校, 電気電子システム工学科, 教授 (10217854)
• Project Period (FY): 2011 – 2013
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000); Fiscal Year 2013: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000); Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000); Fiscal Year 2011: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
• Keywords: 紫外線レーザー / ナノ秒パルス / 微細穴 / 拡散板 / レーザー / 紫外線 / ナノ秒 / PPS / 貫通穴 / 紫外レーザー / シングルショット / マルチショット / ガルバノメータースキャナ / ナノ秒レーザー / 紫外パルスレーザー / PPSシート / 拡散シート

Research Abstract

The diffusion seat for liquid crystal display was made by using new laser microprocessing technology which was developed by our laboratory. This technique using nanosecond pulse UV laser is simple compared with the conventional production technology. By using this technique, we were able to make reproducible small holes in transparent resin sheets of polyethylene terephtalate (PET) and polyphenylene sulfide (PPS). The resin sheets having through holes with narrow pitch function as the diffusion seat for liquid crystal display.

Research Products

• [Journal Article] Through Hole Forming Method Using a Flowable Backing Material During Pulse UV Laser Radiation (2014)
  • Author(s): S.Nakamura, k.Itagaki, N.Soma
  • Journal Title: Journal of Laser Micro/Nanoengineering Volume: Vol. 9, No. 1 Pages: 73-78
  • Peer Reviewed
• [Journal Article] Through Hole Forming Method Using a Flowable Backing Material During Pulse UV Laser Radiation (2014)
  • Author(s): Susumu Nakamura, Kaoru Itagaki and Naohiko Soma
  • Journal Title: Journal of Laser Micro/Nanoengineering Volume: 9 Pages: 73-78
  • Peer Reviewed
• [Presentation] Through hole forming method using pulse UV laser (2013)
  • Author(s): S.Nakamura, K.Itagaki and N.Soma
  • Organizer: Online Proceedings of LPM 2013
• [Presentation] Through hole forming method using pulse UV laser (2013)
  • Author(s): Susumu Nakamura, Kaoru Itagaki and Naohiko Soma
  • Organizer: International symposium on laser precision microfabrication
  • Place of Presentation: 新潟コンベンションセンター 朱鷺メッセ
• [Presentation] Through hole forming method using pulse UV laser (2013)
  • Author(s): Susumu Nakamura, Kaoru Itagaki, Naohiko Soma
  • Organizer: The 6th International Congress on Laser Advanced Materials Processing, LAMP201
  • Place of Presentation: 朱鷺メッセ（新潟市）