Led Bus Stop Sign Display Destination Advertising Screen Board

FAQs

• Q1. Why can LED bus displays be seen clearly in direct sunlight, but ordinary screens cannot?

  The core reason is the difference in brightness and contrast design:
  LED bus display screens (especially outdoor models) use "ultra-high brightness LED light beads", with brightness generally reaching 5000-8000cd/㎡ (ordinary household displays only 200-300cd/㎡), and support "automatic light sensing adjustment" - real-time detection of light intensity through ambient light sensor, automatically increasing brightness under strong light, and automatically reducing brightness under low light (such as at night), which not only ensures visibility, but also avoids glare or power consumption.

• Q2. Can LED bus display video or animations be displayed? Or can only display text?

  Depend on screen type and control scheme:
  Monochrome/Dual-color screen (such as red, red and green two-color): Only text (such as line number, site name) and simple graphics (such as arrows) are supported, video or color animation cannot be displayed;
  Full color screen (mostly outdoor body side screens and in-car advertising screens): supports displaying color pictures, animations, and short videos (such as public welfare promotions and commercial advertisements), but due to the storage and bandwidth of the bus, the videos are mostly low resolution (such as below 720P), short-term length (15-30 seconds loop), to avoid lag.

• Q3. What is the essential difference between the LED screen on the bus body/front and the screen in the car?

  Due to the different installation environment and usage scenarios, the core parameters and designs of the two are completely different, mainly the differences are brightness, protection level, temperature adaptation, display content, size, etc.

• Q4. When taking the bus at night, the LED screen is too bright and shines your eyes. Can it be dimmed?

  Yes. The TENSHANG LED bus displays have "Night Mode" or "Auto Brightness Adjustment" functions:
  If the screen comes with a light sensor, the brightness will automatically decrease to below 1000cd/㎡ in the evening (light is below the threshold, such as 200lux);
  The background can be remotely set "Time Brightness" (such as fixed low brightness from 20:00-6:00) through the network, or the driver can manually dim it through the in-car control button.

• Q5. How long does the LED bus display last? How can daily maintenance extend life?

  The design life of core components (LED lamp beads, control cards, power supplies) is 5-8 years, but the actual life is greatly affected by the frequency of use and the environment. The outdoor screen may shorten its life to 3-5 years due to long-term exposure to high and low temperature and rainwater environments; the interior screen environment of the car is stable, and the life span can reach 6-8 years.
  The outdoor screen is wiped with a soft cloth dipped in clean water every 2 weeks (removing dust and bird droppings to avoid local overheating caused by blocking light); the interior screen of the car is wiped with alcohol cotton pads every month to avoid accumulation of oil.

• Q6. I want to update the line information to the fleet's LED screens uniformly. In addition to getting on the car one by one, is there any more efficient way?

  Yes, two "remote batch control" solutions are recommended, which are suitable for fleet scale management:
  4G/5G network control: Apply 4G/5G modules to the control card of each screen, sending instructions through the operation backend (computer/mobile phone APP), and updating the lines, sites, and advertising content of all vehicles at the same time, without the need to get on the bus, suitable for cross-regional fleets (such as city-wide buses);
  WiFi LAN control: Deploy WiFi hotspots in bus fleet parking lots, automatically connect to WiFi after the vehicle returns to the field, and automatically push update content in the background (such as updating the next day line when returning to the field at night). It is suitable for fleets in fixed parking lots, and the cost is lower than that of 4G solutions.
  Both solutions need to ensure that the control card supports "remote communication protocol" (such as TCP/IP, MQTT), and the old control card needs to be upgraded and replaced.