3M Display Materials & Systems Division

2021 Technical Data

3M™ Dual Brightness
Enhancement Films(DBEF)• DBEF-D2-280 Auto
• DBEF-D2-400 Auto
• ARP-260• ARP-320
Product Description
3M™ Dual Brightness Enhancement Films(DBEF) manage the polarization output of lightfrom liquid crystal display backlights. 3M DBEF
recycles light that would normally be absorbedby the rear polarizer. This increases the amountof light available for viewing the display.

Construction/Performance
Product

3M DBEF-D2-280
Auto

3M DBEF-D2-400
Auto

Effective Transmission

1.6

1.61.61.66

Caliper (microns)

280 +/- 40

390 +/- 40

255 +/- 40

320 +/- 40

Haze (%)

75.5 +/- 10

79.5 +/- 10

79.5 +/- 10

41.5 +/- 10

Outer Skins

Polycarbonate

Polycarbonate

Polycarbonate

Polycarbonate

3M ARP-260

3M ARP-320

3M™ Dual Brightness Enhancement Films (3M DBEF)

Polarization Recycling

Automotive Environmental Testing
Recycled
Light

P1

P2DBEFP1P2 Absorbed

P1 Transmit

LCD

High Temperature

Condition

Time95°C

1000 hours

High Temperature – ARP 105°C

1000 hours

Low Temperature-40°C

1000 hours

Temperature/ Humidity

65°C/90%RH

1000 hours

Thermal Shock-40°C to 95°C

1 hour dwell/
100 cycles

Thermal Shock – ARP-40°C to 95°C

1 hour dwell/
300 cycles

Backlight

Automotive Display – Recommended Solutions
Partial Instrument Cluster

Full Instrument Cluster

Center Stack

High Axial Brightness

High Efficiency

Minimal Windscreen Reflection

3M DBEF-D2-400 Auto

3M DBEF-D2-400 Auto

3M ALCF-A3+

3M BEF3-T-155n Auto

3M BEF3-T-155n Auto

3M BEF3-T-155n Auto

DiffuserDiffuserLight Guide

Light Guide

3M ESR Auto

3M ESR Auto

3M BEF3-T-155n Auto
DiffuserLight Guide

3M ESR Auto

Axial Luminance = 974 nits
Gain = 2.8

Axial Luminance = 836 nits
Gain = 2.4

Axial Luminance = 706 nits
Gain = 2.1

3M™ Dual Brightness Enhancement Films (3M DBEF)

Technical Information
The technical information, recommendations and otherstatements contained in this document are based on tests
or experience 3M believes reliable, but the accuracy orcompleteness of such information is not guaranteed.

Product Use
Many factors beyond 3M’s control and uniquely within
the user’s knowledge and control can affect the use andperformance of a 3M product in a particular application.
Given the variety of factors that can affect the use andperformance of a 3M product, user is solely responsible
for evaluating the 3M product and determining whether
it is fit for a particular purpose and suitable for the user’s
method of application.

Warranty, Limited Remedy, and Disclaimer
Unless an additional warranty is specifically stated on theapplicable 3M product packaging or product literature,
3M warrants that each 3M product specification at thetime 3M ships the product. 3M MAKES NO OTHERWARRANTIES OR CONDITIONS, EXPRESS OR IMPLIED,INCLUDING BUT NOT LIMITED TO, ANY IMPLIEDWARRANTY OR CONDITION OF MERCHANTABILITY
OR FITNESS FOR A PARTICULAR PURPOSE OR ANY
IMPLIED WARRANTY OR CONDITION ARISING OUT
OF A COURSE OF DEALING, CUSTOM, OR USAGE
OF TRADE. If the 3M product does not conform to thiswarranty, then the sole and exclusive remedy is, at 3M’s
option, replacement of the 3M product or refund of thepurchase price.

Limitation of Liability
Except where prohibited by law, 3M will not be liable forany loss or damage arising from the 3M product, whetherdirect, indirect, special, incidental or consequential,
regardless of the legal theory asserted, including
warranty, contract, negligence or strict liability.

3M Display Materials & Systems Division
3M Center, Building 235-1E-54
St. Paul, MN 55144-1000 U.S.A.
Phone
Web

1-800-3M HELPS
3M.com/displayfilms

3M is a trademark of 3M Company.
All other trademarks herein are the property of
their respective owners.
© 3M 2021. All rights reserved.
dz28474