Browsing by Author "Hsieh, Jen-Chieh"

Now showing 1 - 2 of 2

Multi-performance film (MPF) for highly efficient LCD backlights
(2008)
Hsieh, Jen-Chieh
;
Huang, Yi-Pai
;
Chen, Chun-Ho
;
Lo, Yu-Chun
;
Fang, Jen-Yu
A multi-performance film (MPF) which has concave-parabolic cylinder micro prism structures was proposed to improve light coupling efficiency and to reduce lamp-Mura defect. A MPF combined light diffusion and light collecting performance as a multiple functional film. By applying the MPF wider FWHM angle, higher light output coupling efficiency, and slighter lamp-Mura were demonstrated on a 32-inch direct-type backlight.
Volumetric scattering layer for flexible transflective display
(2008-02-01)
Yang, Bo-Ru
;
Liu, Kang-Hung
;
Lee, Shih-Nan
;
Hsieh, Jen-Chieh
;
Shieh, Han-Ping D.
A flexible transflective liquid crystal display (FTF-LCD) which combined a flexible LCD and a flexible organic light emitting diode was demonstrated. Under high light ambience (reflected luminance of 250 nits), a LCD incorporated with a volumetric scattering layer (VSL) showed a contrast ratio of 10 : 1 at the viewing cone of 60 degrees in the reflection mode. By adding the VSL to the LCD, the haze component was increased by a factor of 3.3. With the advantages of small form factor, flexibility, power-saving, and legibility in bright ambience, the FTF-LCD is very applicable to mobile products.