Custom 1.1mm Tinted Grey Tempered Cover Glass Panels

Product Overview

Chenshi Tech is a premier manufacturer specializing in custom tempered cover glass panels and neutral density display filter glass. Engineered specifically for high-end optoelectronic instruments, audio-visual gear, smart appliance interfaces, and outdoor automotive dashboards, our tinted grey tempered cover glass enhances screen contrast, minimizes surface reflections, and delivers a modern “dead-front” solid black finish when the display is powered off.

Complementing our custom chemically strengthened etched AG glass panels and high-precision ITO glass substrates, our tinted grey tempered cover glass provides exceptional mechanical impact resistance, high surface hardness, and uniform optical attenuation across the visible spectrum.

Technical Specifications for Tempered Cover Glass

Every production run of our tempered cover glass undergoes precision CNC machining, chemical strengthening, and comprehensive optical inspection. Optical transmittance and haze measurements conform to the international standard ASTM D1003 (https://en.wikipedia.org/wiki/Haze_meter) for transparent flat glass.

• Base Glass Material: Body-Tinted Neutral Grey Soda-Lime / Aluminosilicate (Custom option: Low-Iron Tinted Float Glass)

• Standard Substrate Thickness: 1.1 mm (Nominal) (Custom range: 0.7 mm, 1.6 mm, 2.0 mm, 3.0 mm)

• Thickness Tolerance: Plus or minus 0.05 mm (Custom precision: Plus or minus 0.02 mm)

• Visible Light Transmittance (VLT): 15%, 25%, 35%, 50%, 70% at 550 nm (Fully custom neutral density)

• Strengthening Method: Chemical Ion-Exchange for 1.1 mm (Thermal Tempering for thickness over 3.0 mm)

• Surface Hardness: 9H Pencil Hardness / Mohs 6.5 to 7.0

• Impact Resistance: IK07 to IK08 (Withstands steel ball drop tests)

• Compressive Stress: 450 MPa to 750 MPa

• Depth of Layer: 8 microns to 15 microns

• Cutting Dimensional Tolerance: Plus or minus 0.05 mm via high-speed CNC milling

• Edge Finish: 2.5D C-edge bevel, pencil round polished, flat ground, and stepped rabbeted edges

Why Use Tinted Grey Tempered Cover Glass for Displays?

1. Enhanced Ambient Contrast Ratio: When standard clear glass is placed over OLED, Micro-LED, or TFT-LCD screens, ambient light reflections wash out black levels. Neutral grey tempered cover glass attenuates background reflections twice (incoming and outgoing) while emitted display light passes through only once, resulting in deep, rich blacks.

2. Seamless “Dead-Front” Hidden Display Aesthetics: Designers of smart home appliances and automotive consoles require a uniform black front panel. In the powered-off state, indicator symbols, seven-segment LED figures, and screen borders stay completely concealed behind the tempered cover glass, illuminating with high clarity only when activated.

3. Glare and Visual Fatigue Reduction: By absorbing intense ambient light and bright reflections, grey tempered cover glass softens high-output LED backlights, preventing visual strain in marine control bridges, outdoor kiosks, and industrial automation workstations.

Custom Finishing and Secondary Fabrication Capabilities

Chenshi Tech provides end-to-end secondary processing to deliver ready-to-assemble tempered cover glass panels directly to your manufacturing line:

• High-Speed CNC Profiling: Custom rectangular panels, circular sight discs, complex CAD geometries, 2.5D round pencil edges, and safe polished bevels.

• Ultrasonic Drilling and Cutouts: Precision camera pinholes, capacitive touch sensor cutouts, ambient light sensor openings, and speaker ports.

• High-Opacity Ceramic Silk Screen Printing: Black border frames, custom brand logos, semi-transparent IR windows, and scratch-proof ceramic frit inks thermally fused into the glass surface.

• Functional Optical Thin Films:

  • Anti-Reflective (AR) Coating: Multi-layer magnetron sputtering to minimize surface reflection and maximize display light output.

  • Anti-Fingerprint (AF) Coating: Hydrophobic top-layer delivering a water contact angle over 115 degrees, repelling sweat, skin oils, and water smudges.

Primary Application Sectors

• Audio-Visual and Hi-Fi Systems: Front faceplates for DAC players, power amplifiers, professional mixing consoles, and audio receivers.

• Smart Home and Commercial Appliances: Oven control panels, smart thermostat touchscreens, water dispenser interfaces, and induction cooktop covers.

• Automotive and Marine Displays: Center dashboards, digital gauge clusters, GPS viewports, and marine sonar fishfinders.

• Industrial HMI and Outdoor Terminals: Fuel pump screens, ticketing kiosks, factory automation consoles, and rugged handheld field meters.

Frequently Asked Questions (FAQ)

Q: Can 1.1mm thick tempered cover glass be physically tempered, or must it be chemically strengthened? A: Standard physical thermal tempering requires a minimum glass thickness of 2.8mm to 3.0mm. For 1.1mm thin tempered cover glass, we use chemical ion-exchange tempering in a molten potassium salt bath (KNO3), which delivers high mechanical impact strength and flexural durability without optical distortion.

Q: How do I select the right Visible Light Transmittance (VLT) for my tempered cover glass? A: For LED segment indicators and high-contrast OLED screens where a pure “dead-front” hidden look is desired, lower transmittances between 15% and 25% are ideal. For standard TFT-LCD screens where backlight energy must be conserved, transmittances between 35% and 50% provide the optimal balance between high contrast and display brightness.

Q: Does your grey tempered cover glass introduce chromatic distortion? A: No. Our tinted tempered cover glass functions as a true neutral density optical filter. It absorbs visible wavelengths evenly from 380 nm to 780 nm, maintaining genuine graphic color reproduction without introducing yellow, green, or blue color shifts.

Q: What impact standards can your tempered cover glass withstand? A: When chemically strengthened, our 1.1mm tempered cover glass reliably complies with IK07 and IK08 impact ratings, easily passing steel ball drop tests (such as a 227g or 500g steel ball dropped from a height of 1.0 meter) depending on the housing support design.