A Novel Continuous Extrusion Process to Fabricate Wedge-Shaped Light Guide Plates

被引：0

作者：

Hsiao, Wen-Tse ^{[1
]}

Lin, Jui-Chang ^{[2
]}

Huang, Keng-Shiang ^{[3
]}

Yang, Chih-Hui ^{[3
]}

Grumezescu, Alexandru Mihai ^{[4
]}

Tseng, Shih-Feng ^{[1
]}

Lin, Yung-Sheng ^{[2
]}

机构：

[1] Natl Appl Res Labs, Instrument Technol Res Ctr, Hsinchu 30076, Taiwan

[2] Hungkuang Univ, Taichung 43302, Taiwan

[3] I Shou Univ, Kaohsiung 82445, Taiwan

[4] Univ Politehn Bucuresti, Bucharest 060042, Romania

来源：

INTERNATIONAL JOURNAL OF POLYMER SCIENCE | 2013年 / 2013卷

关键词：

LIQUID-CRYSTAL DISPLAY; BACKLIGHT; DIFFUSER;

D O I：

10.1155/2013/610132

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Backlight modules are key components in thin-film transistor liquid crystal displays (TFT-LCD). Among the components of a backlight module, the light guide plate (LGP) plays the most important role controlling the light projected to the eyes of users. A wedge-shaped LGP, with its asymmetrical structure, is usually fabricated by an injection proces, but the fabrication time of this process is long. This study proposes a continuous extrusion process to fabricate wedge-shaped LGPs. This continuous process has advantages for mass production. Besides a T-die and rollers, this system also has an in situ monitor of the melt-bank that forms during the extrusion process, helping control the plate thickness. Results show that the melt bank has a close relationship with the plate thickness. The temperature of the bottom heater and roller was adjusted to reduce the surface deformation of the wedge-shaped plate. This continuous extrusion system can successfully manufacture wedge-shaped LGPs for mass production.

引用

页数：6

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