Abstract
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.
| Original language | English |
|---|---|
| Article number | 610132 |
| Journal | International Journal of Polymer Science |
| Volume | 2013 |
| DOIs | |
| State | Published - 2013 |
Bibliographical note
Funding Information:This work was supported by the National Program for Tera-level Nanodevices funded by MOST, and partly from ReCAMM funded by KOSEF, Korea.
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