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Backlight unit
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Backlight source
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• CCFL to LED transition
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• Cost increase
• Adopted by manufacturers due to improved product quality (BAUa)
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• High LED efficacy
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• 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
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Optical films
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• Optimized combination of films
• Multi-function film
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• Trade-offs in material cost, ease of manufacture, and efficiency (BAU)
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• Reflective polarizer (e.g., DBEFb)
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• Cost increase, proprietary technology
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LCD panel
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• Improvement in panel transmittance by optimizing pixel design, functional layers, e.g., polarizer, color filter, and data line
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• Proprietary technology
• R&D investment required but driven by potential for total cost reduction.
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Power management
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• Brightness control by image signals
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• Cost increase
• The effect varies with backlight structure, input images, and algorithm
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• Brightness control based on ambient light condition
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• Cost increase
• The effect varies with settings and ambient light condition
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Other
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• Power supply unit (psu) efficiency
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• Trade-off between cost and efficiency
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• Color gamut (by color filter or light source)
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• Trade-off with efficiency
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