Development of the long life cold cathode fluorescent lamps with Y_2O_3 protective film

• Matsuo Kazuhiro

  Matsushita Electronics Co.

• Yamada Kenji

  West Electric Co.

• Tsujikawa Nobuto

  West Electric Co.

Bibliographic Information

Other Title

• Y_2O_3保護膜付き長寿命冷陰極蛍光ランプの開発
• Y2O3保護膜付き長寿命冷陰極螢光ランプの開発
• Y2O3 ホゴ マク ツキ チョウジュミョウレイインキョク ケイコウ ランプ ノ カイハツ

Abstract

It has been recently spread the LCD panel applied for the Flat Display TV. Then, the cold cathode fluorescent lamps used for the LCD panel, are requested long life(high luminous maintenance factor)and low color sifting. In order to solve these problems, we examined forming protective films among phosphor particle and on phosphor surface by using the sol-gel method. Through investigation of selection material for protective film, we have eventually chosen yttrium oxide as the best material. And we optimized its process technology. This technology improves luminous maintenance factor of the lamps without falling initial luminance at all. We estimated that luminous maintenance factor achieves 60% or more at 70, 000hrs. Also, the technology can control color shifting.

Journal

• ITE Technical Report

  ITE Technical Report 25.5 (0), 97-102, 2001

  The Institute of Image Information and Television Engineers

Keywords

• LCD
• Cold cathode fluorescent lamps
• Long life
• Sol-gel method
• Yttrium oxide
• Protective film

Details

• CRID: 1390001204527756800
• NII Article ID: 110003689237
• NII Article ID: 10018992187
• NII Book ID: AN1059086X
• DOI: 10.11485/itetr.25.5.0_97
• ISSN: 24241970
• ISSN: 13426893
• NDL BIB ID: 5712053
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I5712053
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • CiNii Articles
• Abstract License Flag: Disallowed