2006 Taiwan FPD International Conference May 25-26, 2006 Taipei International Convention Center Brightness Enhancement Films
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1 Taiwan FPD International Conference May 25-26, 2006 Taipei International Convention Center Brightness Enhancement Films Bill Smyth Senior Manager, Marketing & Business Development 3M Optical Systems Division 1
2 2 3M Optical Systems 3M Innovation Strong customer relationships Manufacturing capability and scale Superior quality and service Strong new product pipeline Six Sigma driving productivity gains Unique 3M capabilities serving a high-growth industry 2
3 3 3M Optical Systems Core products Brightness Enhancement Film (BEF) microreplicated prism film Dual Brightness Enhancement Film (DBEF) multilayer reflective polarizer Business segments Handheld Computer Displays(Notebooks & Monitors) LCD TV Polarizer Customers LCD suppliers Backlight suppliers Polarizer suppliers LCD DBEF BEF Backlight 3
4 4 3M Optical Systems Headquarters in Saint Paul, MN Regional offices & labs Regional production with strong conversion and inspection capabilities Regional Offices/Labs Sumitomo 3M Tokyo 3M Korea Seoul 3M Taiwan Taipei 3M China Shanghai 3M Hong Kong Hong Kong 3M Poland Warsaw Regional Production - Sagamihara - Yamagata - Kansai - Naju - Hwaseong - Yangmei - Tainan - Wai Gai Qiao - Suzhou - Dongguan - Wroclaw Delivering several Billion pieces of inspected film each year 4
5 5 Brightness Enhancement Films Prism Films Reflective Polarizers Multi-Function Films Reflectors Film Use Examples Energy Efficiency 5
6 6 Brightness Enhancement Film - BEF 3M Microreplication Technology Recycles off-axis light One piece of BEF boosts brightness by ~60% Two pieces of BEF boosts brightness by ~120% Improves brightness, contrast, uniformity and energy efficiency Light refracted toward viewer BEF Recycled Light Source Recycled 6
7 7 Recycling Prism Films Type Pattern Gain View Angle Typical Applications Standard Phone, Notebook, Monitor, TV Round Tip TV Wave TV Standard Gain Wave Round Tip Polar Angle (Degrees) Optical data from standard production LCD Results depend on backlight composition, design and overall efficiency 7
8 8 Prism Film Considerations Pixel Moiré Periodic prism grooves beat with LCD pixel pattern Reflective Moiré Reflected image of top prism pattern on flat side of bottom prism film results in beat pattern Optical coupling (wet-out) Prism peaks contacting other films can leak light into top sheet leading causing nonuniformity (mura) BEF III random prism pattern helps eliminate wet-out and reflective moiré Taller prism Tightly varied prism height variations provides controlled gap between films 8
9 9 Prism Film Types Base film thickness & typical applications 250 m Large TVs 175 m TVs & Monitors 125 m Monitors & Notebooks 50 m Handheld Prism pitch 50 m Notebook, Monitor, TV 47 m Notebook Turning Film 24 m Handheld Common base films Polyester (PET) is most common Polycarbonate (PC) when birefringence is an issue Value added coatings Matte surface Anti-stat 9
10 10 Single Pass (Non-Recycling) Turning Films Used primarily in consumer Notebooks Plus Low thickness (one less film) On axis brightness Minus Uniformity Narrow view angle High total system cost (Film + Lightguide)* LCD DBEF Diffuser Turning Film Lightguide Lamp * Displaysearch Large Area TFT Backlight Market Outlook 10
11 11 What s Next High Gain BEF Next generation Prism Film On-axis gain improvement of 8% or more High Index Prism Resin Range of substrates Optical data from standard production LCD Results depend on backlight composition, design and overall lighting efficiency 11
12 12 Brightness Enhancement Films Prism Films Reflective Polarizers Multi-Function Films Reflectors Film Use Examples Energy Efficiency 12
13 13 Reflective Polarizer - DBEF 3M Multilayer Technology 100 s of layers that are under 100 nanometers thick Recycles light that would be absorbed by the LCD Boosts brightness by ~60% Improves brightness, contrast, uniformity & energy efficiency LCD Recycled light P1 Transmit P2 Absorbed P1 P2 Backlight P1 DBEF 100 Nanometers 13
14 14 Reflective Polarizers On-glass Laminated to LCD absorbing polarizer Handheld, Notebook, Monitor DBEF-II Between LCD & backlight DBEF with stiff outer skins Notebook, Monitor DBEF-D400 Between LCD & Backlight Polycarbonate (PC) laminates Thickness varies with LCD size Monitor, TV LCD DBEF LCD DBEF LCD PC DBEF PC 14
15 15 What s Next Advanced Polarizer Film Next generation reflective polarizer Sales begin this summer Thickness ( m) Contrast Color Uniformity Upper Use Temp DBEF 93 15:1 APF 35 80:1 + + Transmission (%) APF 60 degree Pass APF 0 degree Block DBEF 60 degree Pass DBEF 0 degree Block Wavelength (nm) 15
16 16 Brightness Enhancement Films Prism Films Reflective Polarizers Multi-Function Films Reflectors Film Use Examples Energy Efficiency 16
17 17 Multifunction Films Optical film functions can be combined in many ways Benefits include.. Reduced thickness Lower system cost Automated module assembly LCD DBEF BEF Diffuser Film Rigid Diffuser Plate Backlight LCD TV 17
18 18 Multifunction Films Value added coatings DBEF Matte BEF Matte BEF Anti-Stat Combine Prism Films and Reflective Polarizers Thin for Handheld Thick for TV s, Monitors What s Next Plate Products for TVs Gain Layer DBEF Thick, Rigid Diffuser Plate 18
19 19 Brightness Enhancement Films Prism Films Reflective Polarizers Multi-Function Films Reflectors Film Use Examples Energy Efficiency 19
20 20 DESR-M Lamp Reflector DESR-M Lightguide UV protected Mirror Film Adhesive Metal substrate Ultra high reflectivity bulb cavity mirror for Notebooks Enhances display brightness by ~10% Increases display color uniformity UV protective coating improves long term stability Optical data from standard production LCD Results depend on backlight composition, design and overall efficiency 20
21 21 Brightness Enhancement Films Prism Films Reflective Polarizers Multi-Function Films Reflectors Film Use Examples Handheld Notebook Monitor TV Energy Efficiency 21
22 22 Color Mobile Phone Displays Customers require. High brightness Energy efficiency Main LCD DBEF-P2 Many different film solutions Film content in Main LCD DBEF-P2 Thin BEF Thin BEF TBEF 90/24 TBEF 90/24 Diffuser Light Guide Diffuser TBEF 90/24 BEF-RP 90/24 Sub LCD LED s Film content in Sub LCD Thin BEF BEF-RP multifunction film Main LCD integrated brightness gain is ~2.5X 22
23 23 Notebooks Customers require. Energy efficiency High brightness 300 nits Typical brightness gain is ~2.4X LCD BEF BEF Backlight Common enhancement film solutions Office Consumer Two pieces of Prism Film (best solution for TCO) Turning Film + Reflective Polarizer Turning Film Two pieces of Prism Film Approximate film content as a % of panel price 2% to 4% 23
24 24 Monitors Customers require. High brightness 300 nits High contrast LCD BEF Backlight Typical brightness gain is ~1.6X Common enhancement film solutions Mainstream Larger Sizes One piece of Prism Film Reflective Polarizer Approximate film content as a % of panel price 2% to 4% 24
25 25 LCD TV Customers require. Very high brightness nits Wide viewing angle High contrast Energy efficiency LCD DBEF- D400 Backlight Typical brightness gain 1.4X to 1.6X Common enhancement film solutions Mainstream High End Reflective Polarizer (DBEF-D400TV) Reflective Polarizer plus BEF Multifunction DBEF-DTV (BEF + DBEF) Approximate film content as a % of panel price 2% to 4% 25
26 26 Brightness Enhancement Films Prism Films Reflective Polarizers Multi-Function Films Reflectors Film Use Examples Energy Efficiency 26
27 27 Vikuiti TM DBEF and Energy Efficiency DBEF can increase the energy efficiency of. LCD TV Backlight 30% to 50% LCD TVs 20% to 30% DBEF can reduce the number of bulbs required to produce a given brightness level in LCD TVs In 3M tests a 37 LCD TV system with DBEF and 12 bulbs produced brightness equal to the same system with 16 bulbs and no DBEF. The DBEF configured system also drew less power to produce the same brightness. Vikuiti TM DBEF Backlight Efficiency Increase up to 50% TV Efficiency Increase up 27to 30%
28 28 28
29 29 Vikuiti TM DBEF and Energy Efficiency 12 Lamps + DBEF 16 Lamps Less Power Lower Temp DBEF = fewer bulbs, less energy, and lower temperature 29
30 30 DBEF Energy Consumption Impact LCD TV Forecast : 315 Million (>21 ) Average Power Savings: 25 W Average Usage Time: 4 hr/day Annual Saving per Set: 36.5 kwh 5 Yr (Lifetime) Savings per Set: kwh *Potential Worldwide Savings: 57.5 Billion kwh 33 Mil Barrels of Oil, or 23 Mil Tons of Coal *315 Million Sets X kwh 30
31 31 Great place to learn more about. Brightness enhancement films Energy savings Vikuiti TM co-marketing opportunities 31
32 32 32
3 Innovation. Application Guidelines
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