Cover Glass Introduction

Cover Glass Features

Cover Glass Custom different size and shape

Optical clarity

Scratch resistant

Impact resistant

Perfect flatness for optical bonding

Integrated with touch sensors

High environmental and temperature stability

Why Chemical toughened Cover Glass is the Preferred Choice?

In the context of optical bonding, minimizing warpage between the cover glass and the LCD panel is critical.

Any deviation or gap beyond the specified tolerance can compromise the bonding integrity and adversely affect the performance of the entire sensor system.

Chemically strengthened glass excels in this regard, as it can maintain warpage control within an exceptionally tight tolerance of <0.2mm (for a 3mm thickness example).

In contrast, thermally tempered glass typically achieves a warpage tolerance of only <0.5mm (for the same thickness).

This superior flatness ensures a more precise and reliable bonding process, reducing the risk of defects.

Additionally, chemically strengthened glass exhibits a central compressive stress range of 450MPa to 650MPa, significantly enhancing its scratch resistance and mechanical durability.

This combination of low warpage and high stress performance makes chemically strengthened glass the top choice for cover glass applications.

Particularly in high-precision and demanding environments.

Chemical toughened after break

Example for thermal tempering when break

Definition

Glass lens, also referred to as reinforced optical glass, glass windows, or reinforced smartphone lenses.

It’s a critical component typically assembled as the outermost layer of a touch screen display.

The primary material used in the production of cover glass is ultra-thin flat glass, which undergoes a series of precision manufacturing processes, including:

Cutting, CNC engraving, thinning, strengthening, coating, and printing.

Through these advanced processes, the glass is engineered to exhibit exceptional properties such as:

Impact resistance, scratch resistance, oil repellency, anti-fingerprint capabilities, and enhanced optical transmittance.

As a result, the glass serves as a robust protective barrier for the touch screen, functioning as a high-strength “armor” that safeguards the display’s outermost layer while maintaining optimal clarity and durability.