Indoor signage operates in a controlled, protected space. Window-facing signage stays inside but faces daylight, reflections and solar heat through glass. Exposed outdoor signage must address rain, dust, sunlight and the complete enclosure's thermal limits. Choose by actual exposure, not by a supplier's indoor/semi-outdoor/outdoor label or a nit figure alone.
Installation environment comparison
| Installation | Light and heat | Weather exposure | Evidence before approval |
|---|---|---|---|
| Indoor lobby or menu board | Controlled light; check local glare | Protected from rain and outdoor dust | Actual luminance, duty cycle, orientation and CMS test |
| Window-facing / semi-outdoor | Glass reflections, direct sun and trapped heat | Protection depends on where the screen is installed | Glazing, solar-load conditions, sustained output and mounting clearance |
| Exposed street furniture or kiosk | Sun, night dimming and site temperature | Rain, dust and project-specific cleaning exposure | Enclosure and connector IP scope, thermal validation and safe service access |
Specify brightness with conditions, not a universal threshold
Ask whether luminance is typical, minimum, peak or sustained, in which mode and at what temperature. Inspect the intended content behind the real glass from the viewer's position. Higher output may help overcome ambient light, but no universal lux-to-nits ratio or fixed nit band proves readability at every site.
Brightness is not weather protection. IP ratings address ingress under stated tests, not solar-load tolerance, condensation prevention or unlimited pressure washing. A purpose-engineered enclosure can be valid, but an indoor panel placed in a sealed box needs system-level thermal and installation verification; neither immediate failure nor a fixed service life can be assumed.
Verify the complete playback configuration
Confirm portrait support, daily runtime, native pixels, text size, player and CMS compatibility for the quoted model. Run a sample workflow for scheduling, restart, offline playback and remote recovery. An Android version or commercial-panel label alone does not prove a 24/7 rating, licensed app support or reliable fleet management.
Procurement RFQ fields
- Site photos, orientation, sun hours, glazing and whether any part is exposed to rain or dust.
- Size, quantity, smallest text, viewer distance, sustained luminance and agreed sample test conditions.
- Mounting drawing, air clearances, power/network entry, access and cleaning procedure.
- Exact configuration, destination-market file index, approved substitutions, spares and written commercial terms.
TZD Display (Shenzhen Taozhongda Technology Co., Ltd.) offers LCD-based commercial display OEM/ODM configurations in Shenzhen, China. Compare the indoor signage, window display and outdoor LCD families; availability and specifications require confirmation for the quoted model.
For Gulf sun, read the Middle East installation guide. Check model-matched compliance evidence separately, then send your site brief.
Frequently asked questions
Is semi-outdoor signage waterproof?
Not from the label alone. Confirm the actual enclosure, connectors, mounting and ingress-test scope. A window-facing indoor screen is not automatically suitable for rain exposure.
Can the same high-brightness display be used indoors and outdoors?
Only if the complete model is validated for both installations. Brightness does not establish weather, temperature or service suitability.
Does every commercial display support 24/7 operation?
No. Confirm the quoted model's duty cycle, operating conditions, orientation and warranty terms in writing.
What should procurement teams compare first?
Compare site exposure, content readability and thermal limits first, then the complete playback, installation, compliance and service scope on like-for-like quotations.
Sample acceptance by environment
- Record the exact model, firmware, installation and light/temperature conditions alongside the result.
- Agree readable content, warmed-up output, restart recovery and service checks before pilot approval.