Optical PET Film for Brightness Enhancement Film

Brightening Film

CY20DP Pre-Coated Optical PET Film for Brightness

CY20DP pre-coated polyester film for brightness enhancement offers excellent performance and optical properties. After pre-coating on both sides of the substrate, it provides good and stable adhesion to the prism layer or back coating of brightness enhancement films and is mainly used as a brightness enhancement substrate for LCD backlight modules.

5B adhesion

LCD backlight module

Optical film substrate

Double-side pre-coating

Pre-coated brightness film

Product Model:

CY20DP

Key Highlights

High transmittance optical PET film icon

Excellent optical properties

High transmittance (91.04-91.35%) and ultra-low haze provide superior optical clarity for demanding LCD brightness enhancement applications.

Double-side pre-coated polyester film adhesion icon

Double-side pre-coated adhesion

Meticulously pre-coated on both sides, the substrate guarantees exceptionally stable adhesion to the prism layer or back coating of any brightness enhancement film.

Highly matched with composite optical films

Perfectly compatible with single brightness enhancement, dual brightness enhancement film, MOP, POP, DPP, DOP, and other intricate composite structures.

Stable adhesion performance

A consistent 5B rating across all specified thicknesses continuously ensures unbreakable reliable bonding to critical optical coatings.

Technology & Advantages

Advanced brightness enhancement substrates for demanding LCD backlight modules strictly require enormous transmittance, low haze, stringent dimensional stability, and unfailing adhesion to UV-cured prism layers. By utilizing a specialized double-side pre-coating technology, the CY20DP optical PET film easily fulfills these exact parameters for modern composite optical film manufacturing.

CY20DP Optical PET film manufacturing technology

Core Values

Optical Compatibility:
Massive transmittance and near-zero haze make it the undisputed ideal base for LCD backlight films, ensuring absolutely excellent light transmission and minimal diffusion for high-end display applications.

Adhesion Support:
Provides profoundly good and structurally stable adhesion to micro-prism layers and back coatings after double-side pre-coating, ensuring total reliability for brightness enhancement film producers.

Composite Film Compatibility:
Highly matched and technically verified with single BEF, dual brightness enhancement film, MOP, POP, DPP, DOP, and other intricate composite optical films for diverse electronic displays.

Applications

LCD Backlight Module

Employed structurally as the foundational LCD backlight film substrate for high-performance displays.

Brightness Enhancement

The perfect optical PET film for structures strictly requiring adhesion to UV micro-prism layers or back coatings.

Composite Optical Films

Highly matched with single BEF, dual brightness enhancement film, MOP, POP, DPP, and DOP assemblies.

Technical Specifications

Properties	Unit	Standard	Typical Value
Thickness	μm	GB/T 13542.2-2021	50 / 75 / 100 / 125 / 175 / 188 / 250
Tensile Strength - MD	MPa	GB/T 13542.2-2021	167 / 167 / 171 / 203 / 188 / 190 / 178
Tensile Strength - TD	MPa	GB/T 13542.2-2021	212 / 219 / 217 / 204 / 195 / 190 / 182
Elongation at Break - MD	%	GB/T 13542.2-2021	162 / 161 / 164 / 152 / 161 / 161 / 165
Elongation at Break - TD	%	GB/T 13542.2-2021	115 / 114 / 114 / 119 / 133 / 126 / 160
Heat Shrinkage @150°C, 30min - MD	%	GB/T 13542.2-2021	0.99 / 1.04 / 0.95 / 0.74 / 0.53 / 0.63 / 0.95
Heat Shrinkage @150°C, 30min - TD	%	GB/T 13542.2-2021	-0.05 / -0.09 / -0.10 / 0.14 / 0.09 / 0.06 / 0.12
Transmittance	%	ASTM D1003	91.30 / 91.25 / 91.35 / 91.13 / 91.04 / 91.21 / 91.13
Haze	%	ASTM D1003	1.40 / 1.43 / 1.50 / 1.54 / 1.66 / 1.74 / 1.97
Adhesion Test	-	ASTM D3359	5B

Remark: MD refers to machine direction and TD refers to transverse direction. All items are stringent delivery inspection items for this optical PET film. Values for non-recommended nominal thicknesses are rigorously obtained by interpolation.

Packaging & Logistics

Pallet

Solid fumigation-free wooden pallets designed to be perfectly suitable for secure export transportation of optical films.

Label Information

Each film roll label strictly includes model, batch number, exact thickness, width, net weight, and production date for rigid traceability.

Slitting Range

Different exact slit widths can be supplied optimally according to customer optical laminating equipment and display manufacturing requirements.

Supply Note

Regular material specifications strongly support mass batch supply. Lead time depends completely on order specifications, total quantity, and production schedule.

Frequently Asked Questions

Q: What is CY20DP optical PET film mainly used for?

A: Due to its incredible light transmittance, it is mainly utilized by optical film manufacturers as an elite brightness enhancement film substrate for advanced LCD backlight modules.

Q: Which composite optical films does CY20DP efficiently match?

A: The technical TDS expressly states that it is highly matched with single BEF, dual brightness enhancement film (DBEF), MOP, POP, DPP, DOP, and various other composite optical structures.

Q: What is the pre-coated adhesion performance of CY20DP?

A: The official TDS firmly lists flawless 5B adhesion test results for all manufactured thicknesses, guaranteeing perfect bonding to micro-prism layers.

Q: Can sample rolls be quickly provided for testing?

A: Yes, protective samples or small evaluation rolls can be rapidly provided according to exact project requirements for crucial UV resin lamination, optical coating, and visual performance validation tests.

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