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Table 1 LCD monitor efficiency improvement options

From: Efficiency improvement opportunities for televisions in India: implications for market transformation programs

Components Improvement Options Notes
Backlight unit Backlight source • CCFL to LED transition • Cost increase
• Adopted by manufacturers due to improved product quality (BAUa)
• High LED efficacy • Cost reduction in the longer term (BAU)
• Technical barrier in thermal management and short-term cost increase from adoption of much higher efficacy LEDs than BAU trajectory
Optical films • Optimized combination of films
• Multi-function film
• Trade-offs in material cost, ease of manufacture, and efficiency (BAU)
• Reflective polarizer (e.g., DBEFb) • Cost increase, proprietary technology
LCD panel • Improvement in panel transmittance by optimizing pixel design, functional layers, e.g., polarizer, color filter, and data line • Proprietary technology
• R&D investment required but driven by potential for total cost reduction.
Power management • Brightness control by image signals • Cost increase
• The effect varies with backlight structure, input images, and algorithm
• Brightness control based on ambient light condition • Cost increase
• The effect varies with settings and ambient light condition
Other • Power supply unit (psu) efficiency • Trade-off between cost and efficiency
• Color gamut (by color filter or light source) • Trade-off with efficiency
  1. aOptions that are expected to be adopted in a business-as-usual (BAU) case
  2. bDual brightness enhancement film (DBEF) produced by 3M
  3. Source: Park et al. 2013