Thin mini-LED backlight using reflective mirror dots with high luminance uniformity for mobile LCDs
Sho Kikuchi, Yosei Shibata, Takahiro Ishinabe, Hideo Fujikake
Abstract
A new mini light-emitting diode (mini-LED) backlight with reflective dots is proposed for high luminance uniformity, high contrast ratio, and low power consumption for use in mobile liquid crystal displays. The proposed backlight, comprising a small number of mini-LEDs, was verified as having high luminance uniformity and high light use efficiency, due to the optimized reflective dots, backlight thickness and light distribution of the mini-LEDs. Moreover, the light leakage to adjacent segments was reduced by cutting a slit between each segment, improving the light use efficiency per segment and suppressing halo artifacts.
Topics & Concepts
BacklightLuminanceLight-emitting diodeMaterials scienceOpticsLiquid-crystal displayOptoelectronicsLight guideContrast ratioDiodeLight sourcePhysicsOrganic Light-Emitting Diodes ResearchSemiconductor Lasers and Optical DevicesGreen IT and Sustainability