Alkali-Free Glass Substrate: OA-11

The best glass for flat panel displays (FPDs)

Glass substrates designed for thinner, high-resolution displays. Its minimal deformation and deflection under gravity ensure ease of handling even with thin substrates. This glass substrate also provides exceptional dimensional stability during high-temperature processes, making it ideal for next-generation displays.

Applications
Features
Specifications

Applications

LCD displays
OLED displays

Features

Surface smoothness
Offers high surface smoothness even without polishing.
Alkali-Free composition
The content of alkaline oxides is 0.1% or less, preserving the thin film properties of amorphous and polycrystalline silicon.
Thermal dimensional stability
A high strain point and low coefficient of thermal expansion ensure outstanding stability during film deposition and TFT fabrication process.
Chemical surface stability
Resistant to chemical solutions used in semiconductor and TFT manufacturing, maintaining a smooth, clear surface without clouding.
Eco-friendly green glass
Free from harmful substances such as arsenic (As) and antimony (Sb), supporting environmentally friendly practices.

Specifications

Thermal Shrinkage

Transmittance

Properties

Properties/Glass code			OA-11
Density		×10³kg/m³	2.52
Coefficients of thermal expansion	30～380℃	×10^-7/K	37
Strain point		℃	685
Young's modulus		GPa	78
Poisson's ratio			0.2
Vickers hardness	Hv		620
Volume resistivity Logρ	350℃	Ω・cm	13.0
Dielectric constant	1MHz, 25℃		5.6
tanδ	1MHz, 25℃		0.001
Transmittance	λ=550nm	%	92
Refractive index (nd)	587.6nm		1.53
Chemical resistance	10%HCl (80℃-60min)		No surface alteration
Chemical resistance	63BHF (20℃-3min)		No surface alteration
Alkali oxide content		wt%	0.1 or less
As, Sb content		wt%	Not present (less than 0.1)