Optical density measurement of thin-film transistor liquid crystal display by a monochrome light-emitting diode

2009 ◽  
Vol 48 (17) ◽  
pp. 3166
Author(s):  
Fu-Ming Tzu ◽  
Jung-Hua Chou
Keyword(s):  
Thin Film ◽  
Liquid Crystal ◽  
Optical Density ◽  
Liquid Crystal Display ◽  
Light Emitting Diode ◽  
Thin Film Transistor ◽  
Density Measurement ◽  
Light Emitting ◽  
Optical Density Measurement

A Study of LED C-Like Linear Tube by Micromachining Technique for LCD Backlight Applications

2009 ◽  
Vol 419-420 ◽  
pp. 189-192
Author(s):  
Chao Heng Chien ◽  
Zhi Peng Chen
Keyword(s):  
Thin Film ◽  
Liquid Crystal ◽  
Thermal Management ◽  
Liquid Crystal Display ◽  
Thin Film Transistor ◽  
Light Sources ◽  
Cold Cathode ◽  
Optical Efficiency ◽  
Light Emitting ◽  
Fabrication Cost

In order to make the liquid crystal display (LCD) panel thinner, brighter and no-Hg containing, the light emitting diodes (LEDs) are generally beginning to replace conventional cold cathode florescent lamp (CCFL) as light sources for LCD backlight unit (BLU). The thermal management and cost are consideration caused by more LEDs used for larger size BLU. For saving the fabrication cost and considering the luminous uniformity of most commercial BLU, a novel C-like linear tube is fabricated by precision and micromachining technique. The LED C-like linear tube is not only decreasing LEDs for BLU but also increasing the optical efficiency for emitting the light into the BLU. The C-like linear tube is proposed to replace CCFL tube for thin film transistor (TFT) LCD applications.

Sign in / Sign up

Export Citation Format

Share Document