Display Interface
Printed Display Cover Glass
Clear viewing windows, opaque borders and registered logos or legends for LCD, LED and OLED assemblies.
Product Scope
Finished Cover Glass, Ready for Display or Equipment Assembly
Custom cover glass is supplied as a finished component rather than a cut sheet. The part can combine an irregular outline, holes and slots, polished edges, an opaque printed bezel, clear or translucent windows, chemical or thermal strengthening, and functional surface treatment.
Production is controlled from the customer drawing and artwork. Mechanical datums, the active viewing area, cosmetic zones and coating orientation are reviewed together so the finished glass fits the housing and aligns with the display, sensor or backlight.
Custom Cover Glass Specifications
| Parameter | Standard Capability | Available Options |
|---|---|---|
| Glass materials | Soda-lime, low-iron and aluminosilicate | Selected borosilicate or customer-nominated substrate |
| Thickness | 0.1-6.0 mm | Thin cover lenses through thicker protective panels |
| Finished size | Up to 1200 x 1200 mm for flat panels | Small-format lenses and irregular profiles to drawing |
| Outline tolerance | +/-0.10 mm | Down to +/-0.05 mm on controlled small and medium parts |
| Surface treatment | AG, AR or AF | Combined treatment after substrate and process compatibility review |
| Inspection | Dimensions, cosmetic zones, edges and print registration | Haze, gloss, transmission, reflection, contact angle and strengthening data by plan |
Precision values apply to compatible geometry and size. The approved drawing and production sample define the final acceptance limits.
Finished Cover Glass Configurations
Each configuration is supplied as an assembly-ready glass part with the machining, decoration and surface function required by the device.
Touch Interface
Touch Screen Cover Lens
Thin strengthened glass with controlled print position, active touch area, edge finish and optional AG or AF surface.
Industrial Control
HMI Cover Glass
Robust front glass for machine controls, panel PCs and instruments, including gasket lands, holes and readable display windows.
Backlit Controls
Dead-Front Control Glass
Printed black-panel glass that conceals electronics when off and reveals selected icons or displays when illuminated.
Machined Component
CNC Cover Plates
Round, rectangular or irregular glass parts with holes, slots, notches, steps, corner radii and finished edges.
Surface Function
AG, AR and AF Cover Glass
Surface-treated cover glass for glare control, lower reflection, improved image contrast or easier cleaning on frequently touched equipment.
Select the Substrate by Thickness, Appearance and Strengthening Route
The substrate affects edge color, touch distance, retained strength, thermal behavior and the surface processes available on the finished part.
| Material | Primary Reason to Select | Compatible Processing | Common Finished Products |
|---|---|---|---|
| Soda-Lime Glass | Cost-controlled material for medium-thickness control and equipment panels | CNC, thermal strengthening, screen printing, AG, AR and AF | HMI panels, appliance controls, kiosks and protective windows |
| Low-Iron Glass | Reduced green tint where edge color and transmitted color are visible | CNC, thermal strengthening, printing and optical coatings | White interfaces, thick display covers and color-sensitive panels |
| Aluminosilicate Glass | Thin cover lenses requiring chemical strengthening and low touch distance | Precision CNC, chemical strengthening, printing, AG, AR and AF | Touch displays, medical monitors, instruments and compact controls |
| Borosilicate Glass | Lower thermal expansion and improved thermal-shock behavior | CNC, edge polishing, printing and selected coatings | Heated instruments, laboratory equipment and technical viewing panels |
Machining, Decoration and Surface Treatment in One Process Route
Mechanical features are completed before strengthening. Printing and coatings are sequenced according to adhesion, temperature and surface-orientation requirements.
Precision Cutting and CNCFinished outlines, holes, slots, speaker openings, camera windows, notches, steps and internal cut-outs.
Edge FinishingSeamed, ground, polished, chamfered, pencil, beveled and 2.5D edge profiles for handling, appearance and assembly fit.
Screen and Ceramic PrintingOpaque bezels, logos, legends, scales, translucent icons, dead-front windows and multicolor artwork.
Glass StrengtheningChemical strengthening for thin compatible substrates and thermal strengthening for suitable thicknesses and geometries.
Functional SurfacesAG for glare control, AR for lower reflection, AF for cleanability, and compatible multi-function surface combinations.
Cleaning and Protective PackingFinal cleaning, peelable film or interleaf protection, orientation marking and packing for cosmetic glass surfaces.
Machined Features Controlled From Functional Datums
The outline, display window, holes, slots and printing are related to the same drawing origin so the glass can be inspected in the way it is assembled.
Manufacturable Features
OutlineRectangular, round and irregular profiles
Overall dimensions and key edges are controlled from the assembly datums.
OpeningsHoles, slots, windows and notches
Position, edge distance and corner radius are reviewed before strengthening.
Surface MapPrint, coating and cosmetic zones
Artwork and surface orientation identify clear, opaque, functional and hidden areas.
Process Principle
Machining Must Be Completed Before Strengthening
Holes, slots, shaped edges and cut-outs are produced while the glass is still machinable. Cutting a thermally tempered part causes immediate breakage, while machining chemically strengthened glass removes the compressive surface layer and creates a new flaw at the feature edge. The finished geometry is therefore completed and inspected before the selected strengthening process.
Production Controls for Fit, Appearance and Surface Function
The control plan follows the features that determine assembly fit, display quality and cosmetic acceptance on the finished cover glass.
Production Route
- DATADrawing and Artwork Release
Freeze material, revision, datums, cosmetic zones, print file and surface orientation.
- CNCOutline and Feature Machining
Cut the profile, holes, slots and edges with allowances for the selected downstream process.
- SURFACEPrinting, Strengthening and Coating
Run the approved sequence for decoration, strengthening and functional treatment.
- FINALInspection, Cleaning and Packing
Verify controlled characteristics and protect the visible surfaces for shipment and assembly.
Inspection Points
DimensionsLength, width, thickness, radius, hole and slot position
EdgesChips, grind quality, polish, chamfer and corner condition
CosmeticZone-based scratches, inclusions, stains and surface defects
PrintingRegistration, opacity, color, pinholes and adhesion
OpticalHaze, gloss, transmission, reflection or visual window quality
FunctionalStrengthening, coating contact angle and durability tests by plan
Measurement method, inspection lighting, sampling level and acceptance criteria are fixed with the approved drawing and sample.
Cover Glass Built Around the Finished Device Interface
Each application uses a different combination of material, thickness, printing, strengthening and surface treatment.
Industrial Automation
Machine HMI and Panel PCs
Printed strengthened glass with display windows, mounting features and AG treatment for repeated operation under factory lighting.
Medical Equipment
Monitors and Diagnostic Controls
Thin chemically strengthened cover lenses with clear viewing areas, sealed interfaces and cleanable AF surfaces.
Appliances and Smart Home
Backlit Touch Control Panels
Dead-front printed glass with translucent icons, capacitive key alignment and color controlled against the housing and backlight.
Public Interfaces
Kiosks and POS Displays
Thicker thermally strengthened front glass with polished edges, printed bezels and optional AG or AF treatment.
Instruments and Sensors
Display and Sensor Windows
Small or irregular CNC components with controlled clear apertures, holes, edge profiles and optical surface requirements.
Outdoor Equipment
Charging and Access Controls
Strengthened cover glass with readable display windows, weather-facing print systems and coatings selected for sunlight and frequent cleaning.
Custom Cover Glass Questions
Answers focus on finished-part manufacturing, not generic glass properties.
What thicknesses are available for custom cover glass?
Finished cover glass is produced from 0.1 to 6.0 mm. Thin 0.4-2.0 mm aluminosilicate is commonly selected for chemically strengthened touch and display covers, while thicker soda-lime or low-iron glass is used for HMI, kiosk and equipment panels.
What dimensional tolerance can be held?
Standard outline tolerance is +/-0.10 mm. Compatible small and medium parts can be controlled to +/-0.05 mm on defined critical dimensions. Part size, thickness, edge profile and strengthening route determine the final tolerance plan.
Can holes, slots and irregular profiles be machined?
Yes. CNC processing covers external profiles, holes, slots, notches, display openings and stepped features. The feature size, corner radius and edge distance are reviewed before the drawing is released.
Can printing, AG, AR and AF be combined on one part?
Compatible combinations are available. Surface orientation, process temperature, adhesion and the optical target determine the sequence. The build is validated on production-intent samples before volume release.
What is the difference between chemical strengthening and thermal tempering?
Chemical strengthening suits thin compatible substrates and maintains the original geometry through ion exchange. Thermal tempering is used on suitable thicker glass and produces a safety break pattern. Material, thickness, part size and feature geometry determine the route.
How are cosmetic requirements controlled?
The drawing divides the part into active viewing, visible border, hidden bonding and non-cosmetic zones. Each zone receives its own defect limits and inspection conditions, supported by an approved physical sample where appearance is critical.
Can prototypes and production quantities use the same process?
Prototype parts can be produced with the intended material, machining, printing and surface treatment. Tooling, inspection sampling and process controls are then adjusted for the production quantity without changing the approved functional surfaces.
RFQ and Manufacturing Review
Send the Cover Glass Drawing and Surface Requirements
Include: material and thickness | 2D drawing and outline file | cosmetic zones | print artwork and color reference | strengthening or coating target | prototype and annual quantity.
We review the finished part, confirm the proposed manufacturing sequence and identify the dimensions, appearance limits and functional values that require sample approval.
Saving your time and cost is our common pursuit.
Tell us the material, size, thickness, tolerance, quantity, application, and any holes, slots, edges, coating, printing, or polishing requirements. We can manufacture custom glass components from your drawing, CAD file, sketch, or sample.
- Address
- Yunpu Industrial Zone, Nangang, Huangpu District, Guangzhou
- Call Us
- +86 19860070065
- Email Address
- info@specialglass.net
- +86 19860070065
- +86 19860070065