Micro-tube array on transflective liquid crystal displays for enhancing the backlight utilization efficiency

Abstract

A novel transflective LCD with micro-tube array structure is demonstrated to make most backlight be utilized effectively. By redistributing the area ratio of transmissive and reflective regions, high light efficiency in both transmissive and reflective sub-pixels can be yielded. Based on the principle of light collecting, a simulation model was established to characterize the features and optimize micro-tube array structure. Furthermore, a typical TFT-LCD process was utilized to fabricate the optimized structure. A prototype of inicro-tube array was fabricated, and the measured enhancement of back-light utilization efficiency can be a factor of 1.81.