An automotive display is a composite of assembly, optical and electronic parts: cover glass, display module, touch layer, backlight, control board and FPC connections. With so many failure modes, the test plan has to be laid out systematically.

Automotive display module in a test fixture — Automotive display and LED module

Typical products

Centre console display
Instrument cluster display
Full-width tail-light display
Camera-monitor system display
Head-up display (HUD)
Passenger entertainment display

Test scope by category

Mechanical and climatic: high and low temperature, temperature cycling, damp heat, vibration, shock, ingress protection, solar ageing.
Display optics: luminance, uniformity, chromaticity coordinates, contrast ratio, response time, viewing angle, dead pixels, Mura.
EMC and electrical: radiated emission, conducted emission, immunity, ESD, transients.
Connection reliability: FPC bend life, connector mating and locking.

Common failure modes

Cover glass shattering from thermal shock after prolonged solar exposure.
Abnormal LCD response or colour shift at low temperature.
FPC connector detachment or poor contact after vibration.
Internal fogging caused by moisture ingress.
Backlight luminance decay and colour shift after temperature cycling.
Radiated emission above the limit (backlight drivers and touch ICs are common sources).

Suggested test sequence

EMC pre-compliance first, so interference problems surface early in development.
Then high and low temperature and temperature cycling, covering temperature-related failures.
Then vibration and shock, covering mechanical load failures.
Then damp heat and ingress protection.
Finally an optical performance check-out, to evaluate overall behaviour.

Service notes

Our laboratory holds both CMA and CNAS accreditation, covers about 10,000 m2 and runs more than 500 sets of equipment. All testing is carried out in our own laboratories — nothing is subcontracted. Plant visits and on-site witnessed testing are welcome.

Scheduling follows the actual project pipeline. You can state your preferred lead time when you submit samples; we will confirm a feasible plan against current capacity and keep you updated at each milestone.

Test Matrix

Test items and typical conditions

What makes an automotive display module different is that, beyond the usual EMC and environmental items, optical metrics have to be re-measured at temperature — looking good at room temperature while losing brightness or slowing down when hot is the most common failure mode for this product type.

Test dimension	Typical items	Common condition ranges	Reference standard
Climatic	High-temperature storage and operation, cold operation, temperature cycling, damp heat	Commonly −40 ℃ to +85 ℃, per mounting location	GB/T 28046
Optical performance	Luminance, contrast ratio, chromaticity coordinates, response time	Re-measured at room temperature and at temperature extremes; judged per the customer technical agreement	Customer technical agreement
Solar simulation	Solar radiation at dashboard and centre-stack positions	Irradiance and duration per mounting location and target market	ISO 16750
Materials and odour	VOC, odour evaluation	Bag method or chamber method; odour rated 1–6 (grade 1 = no odour)	ISO 12219 / VDA 270
EMC	Radiated emission, radiated immunity	Run to the CISPR 25 and ISO 11452 items	CISPR 25
Mechanical	Random vibration, mechanical shock	Graded by mounting location	ISO 16750

Conditions and limits above are typical ranges for reference. The actual test levels, sample quantity and acceptance criteria follow the mutually confirmed test plan and standard version. Source: the clauses of each referenced standard.

Have a testing requirement? Send us your product details

Tell us the product model and test requirements. Our engineers will map out the test plan, the applicable standards and the item combination, and provide a quotation reference. The more specific the request, the sharper the answer.

Free scoping of the test plan and standards
Pre-scan testing during R&D to cut rework cost
On-site visits and witnessed testing supported
Scheduling per project, with progress updates at each milestone

Tel 0755-86642861 Sales 13510907826