Clear Optical PET Film | CY20 LCD Backlight Film Substrate -Yuxing Film

Diffusion Base Film

CY20 Clear optical PET film

Transparent polyester film, high light transmittance, low haze, clean surface no defects, excellent electrical insulation properties. Mainly used as base film for LED back light source and nameplate. Standard thickness: 100μm, 125μm, 150μm, 188μm and 250um. Other thickness can be customized according to customer's specific requirement.

Optical base film

Transparent PET

Photoelectric display

High transmittance

Low haze

Product Model:

CY20

Key Highlights

High transmittance clear optical PET film icon

High light transmittance & low haze

High transmittance (88.4-89.2%) and remarkably low haze (2.2-3.2%) ensure superior visual clarity, making it an ideal clear optical PET film for modern display applications.

Clean surface, no defects

A rigorously defect-free surface with excellent appearance quality strictly meets the highest optical grade PET film and electronic material requirements.

Technology & Advantages

CY20 is a high-clarity clear optical PET film engineered precisely for high light transmittance, ultra-low haze, and a pristine, defect-free surface appearance. It simultaneously provides excellent electrical insulation properties, making it profoundly suitable as a reliable functional base film for LCD backlight film materials, optical nameplates, and related premium electronic applications.

Core Values

Core Performance:
Outstanding high light transmittance (88.4-89.2%) and low haze (2.2-3.2%) ensure superior optical clarity. Its clean, defect-free surface and excellent electrical insulation provide reliable performance when used as a transparent PET substrate for LED backlight components and nameplates.

Processing Adaptability:
Perfectly suitable for highly demanding optical lamination and optical coating processes. This clear optical PET film robustly supports slitting, die-cutting, and other delicate converting operations with entirely stable mechanical properties. Highly compatible with standard manufacturing equipment for efficient, high-yield production.

Applications

Applications listed in TDS

A true optical grade PET film featuring high light transmittance, minimal haze, a clean surface with zero defects, and excellent electrical insulation properties. Primarily utilized as a high-end transparent PET substrate.

Clear optical PET film for LCD backlight

LED / LCD Backlight

Acts perfectly as the core LCD backlight film base for demanding LED backlight source assemblies and brilliant optical display modules.

Electronic Nameplates

Provides absolute visual clarity and structural stability when used as the protective printing layer for high-grade electronic nameplates.

Technical Specifications

Item	Item	Unit	Index	Index	Test method
Thickness	Thickness	μm	50	75	GB/T 13542.2-2021
Tensile strength	MD	MPa	168	155	GB/T 13542.2-2021
Tensile strength	TD	MPa	195	171	GB/T 13542.2-2021
Elongation at break	MD	%	108	106	GB/T 13542.2-2021
Elongation at break	TD	%	109	92	GB/T 13542.2-2021
Heat shrinkage (150℃, 30min)	MD	%	1.3	1.3	GB/T 13542.2-2021
Heat shrinkage (150℃, 30min)	TD	%	0.6	0.6	GB/T 13542.2-2021
PCT test Elongation at break	TD	%	58	76	121℃, 100%RH, 2atm, 60h
PCT test Elongation at break	MD	%	55	61	121℃, 100%RH, 2atm, 60h
Glossiness	60°	GU	85	90	Gloss meter
UV Yellowing	300kWh/m2	-	1.6	1.6	IEC 61215
UV isolation rate	280–400 nm	%	99.5	99.6	Ultraviolet spectrophotometry
Transmittance	400–1000 nm	%	16	16	Ultraviolet spectrophotometry
Breakdown voltage (In air)	Breakdown voltage	kV	6	9	GB/T 1408.1-2016
Note: ① MD = Machine Direction; TD = Transverse Direction. / ② The PCT test is a type test; other items are factory acceptance tests for this clear optical PET film. / ③ The values above are typical values, not guaranteed maximums.

Remark: The comprehensive parameter table is strictly from the original optical grade PET film TDS. MD refers to machine direction and TD refers to transverse direction; inspection type and typical value notes adhere exactly to the original TDS.

Packaging & Logistics

Storage Conditions

Store the highly sensitive clear optical PET film in a strictly clean, dry, and ventilated place to avoid any dust contamination.

Storage Environment

Keep safely away from fire, active heating sources, and continuous direct sunlight prior to optical coating.

Pallet

Solid fumigation-free wooden pallets engineered specifically to be suitable for safe export transportation.

Label Information

Each roll label meticulously includes model, batch number, exact thickness, width, net weight, and production date to ensure complete optical traceability.

Slitting Range

Different precise slit widths can be supplied perfectly according to customer LCD backlight film laminating equipment and production lines.

Supply Note

Regular specifications reliably support mass batch supply. Lead time fundamentally depends on order specifications, exact quantity, and current production schedule.

Packaging of clear optical PET film rolls

Frequently Asked Questions

Q: What is the CY20 optical grade PET film mainly used for?

A: This premium clear optical PET film provides incredibly high light transmittance, decisively low haze, a clean surface with no defects, and excellent electrical insulation properties. It is mainly used as an essential LCD backlight film base for LED back light sources, display modules, and high-end printed nameplates.

Q: Can other specialized thicknesses be customized?

A: Yes. Other specific thicknesses of this transparent PET substrate can be completely customized according to the optical coating customer's specific technical requirements.

Q: Can transparent sample rolls be provided for LED backlight testing?

A: Yes, samples or small evaluation rolls can be rapidly provided according to exact project requirements for critical optical lamination, coating adhesion, and overall haze/transmittance performance validation tests.

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