Won Young Park, Nihar Shah, Amol Phadke International Energy Studies Group Lawrence Berkeley National Laboratory Super-efficient Equipment and Appliance Deployment (SEAD) Initiative: Super-efficient Equipment and Appliance Deployment (SEAD) Initiative: Lessons from the Technical Analysis of Lessons from the Technical Analysis of Televisions Televisions June 2012
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Won Young Park, Nihar Shah, Amol Phadke International Energy Studies Group Lawrence Berkeley National Laboratory Super-efficient Equipment and Appliance.
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Won Young Park, Nihar Shah, Amol Phadke
International Energy Studies Group
Lawrence Berkeley National Laboratory
Super-efficient Equipment and Appliance Deployment (SEAD) Super-efficient Equipment and Appliance Deployment (SEAD)
Initiative: Initiative:
Lessons from the Technical Analysis of Lessons from the Technical Analysis of
TelevisionsTelevisions
June 2012
Page 2
Technology TransitionTechnology Transition
Source: Quarterly Advanced Global TV Shipment and Forecast Report, Third Quarter 2011, DisplaySearchNote: Global shipments of rear projection TVs were 0.17 million units in 2010 and are expected to decrease. Organic Light Emitting Diode (OLED) TVs are expected to reach 2.7 million units in 2015.
• LCD TVs are expected to account for more than 85% of the global TV market through
2012. (CCFL-LCD TV : ~29%, LED-LCD TVs : ~60% in 2012)
Page 3
Technology TransitionTechnology Transition
Source: Quarterly Advanced Global TV Shipment and Forecast Report, Third Quarter 2011, DisplaySearch
• The large scale transition from CCFL to LED backlights is likely to bring
substantial improvement in efficiency.
Total TV screen area
2010: 79 Mm2
2015: 104 Mm2
Total LED backlit LCD TV screen area
2010: 15 Mm2
2015: 92 Mm2
* Mm2 (million square meters)
Page 4
Efficiency Improvement Options in Efficiency Improvement Options in LCD TVsLCD TVs
Page 5
Low Cost of Conserved ElectricityLow Cost of Conserved Electricity
1. CCE and Savings for Reflective Polarizer (Dual Brightness Enhancement Film)
Screen Size BacklightΔ Pon-mode
per unit (W)
Δ CDBEF
per unit ($)
CCE(m)($/kWh)
Δ CDBEF-consumer
per unit ($)
CCE(c)($/kWh)
32"CCFL 12.3 6.0 0.041 9.0 0.062
LED 8.2 5.5 0.058 7.0 0.072
42"CCFL 17.9 9.9 0.047 11.0 0.052
LED 12.6 7.4 0.050 10.0 0.067
Screen Size BacklightΔ Pon-mode
per unit (W)
Δ CDimming
per unit (W)
CCE(m)($/kWh)
Δ CDim-consumer
per unit (W)
CCE(c)($/kWh)
32"CCFL 12.3 6.1 0.042 10.0 0.069
LED 8.2 6.7 0.069 9.0 0.093
42"CCFL 17.9 6.3 0.030 7.0 0.033
LED 12.6 7.2 0.048 10.0 0.067
Assumptions: efficiency improvement=20%, discount rate=5%, economic lifetime=8years, daily usage=5hoursCCE(m): CCE for manufacturer, CCE(c): CCE for consumer
• Although rapid TV technology transitions are likely to reduce the consumption of
a TV unit, it can be further reduced by 20% to 40% cost effectively.
Note: Based on a comment from DisplaySearch, it is estimated about 80% of LCD TVs 40 inches or larger, i.e., about 26% of all LCD TVs in terms of shipment, are using reflective polarizers in 2011.
2. CCE and Savings for Backlight Dimming
Note: Manufacturers employ either a complete dimming or no dimming option for low-end products, and advanced dimming methods are mostly limited to high-end products.