Autopilot Displays: LCD vs TFT Screen

What are LCD and TFT displays?

Autopilot control heads use different display technologies to show course, heading, and mode information. Two common terms you will see in listings are LCD and TFT. LCD stands for liquid crystal display, a technology that uses liquid crystals to create images. TFT stands for thin-film transistor, a type of LCD that uses a transistor for each pixel, allowing for faster response and better contrast.

In simple terms, a TFT display is a more advanced version of an LCD. TFT screens often produce richer colors and sharper text, which can make them easier to read at a glance. Standard LCD screens may be simpler and can be perfectly readable, but they might not offer the same level of contrast in bright sunlight.

When you compare autopilot listings, you will see the display type listed as a stated detail. For example, a control head might be described as having a "4.1-inch Color LCD" or "5.7-inch Color LCD." Some listings may not specify the display type at all, which is a detail you can ask the seller about.

Visibility and sunlight readability

One of the biggest concerns for boat owners is how well a display can be read in direct sunlight. A display that looks great indoors can wash out on a bright day. TFT displays are often designed with higher brightness and better contrast, which helps them remain visible in sunny conditions. This can be important if you spend a lot of time at the helm in open water.

LCD displays without TFT technology may have lower contrast, making them harder to read in glare. However, some LCDs are still quite readable, especially if they use a transflective design that reflects ambient light. The key is to look at the display type and, if possible, see the unit in person or check the maker's specifications for brightness.

Remember that the display is just one part of the autopilot system. The control head is where you interact with the autopilot. To understand how control heads fit into a full system, see our guide to autopilots with a control head. If you have a multifunction display (MFD) that can act as a control head, you might already have a TFT screen, and you may not need a separate control head with a display.

Power draw considerations

Power draw is another factor to weigh. TFT displays, with their backlighting and faster refresh rates, may consume more power than simpler LCD screens. On a boat with limited battery capacity, especially a sailboat at anchor or a small powerboat, every watt matters. However, the difference in power draw between display types is often small compared to the power used by the autopilot's drive unit.

The autopilot system as a whole, including the control head, course computer, and drive, draws power from your boat's electrical system. The display is just one component. If you are concerned about power, look at the total system's power requirements, which are usually listed in the specifications. For example, a control head might be rated for 12-24 VDC, but the actual current draw depends on the backlight and other factors. You can also read our learn article on autopilot power consumption for a general overview.

When comparing listings, you can look for the power usage specification. Some makers list the voltage range, like "12-24 VDC," but not the exact amperage. If power draw is a critical concern, ask the seller or check the maker's manual for detailed specifications.

Control head vs. multifunction display

Autopilot control heads come in two main forms: dedicated control heads and multifunction displays (MFDs) that can control the autopilot. A dedicated control head, like the Raymarine p70 or p70s, has a built-in display and buttons or knobs. An MFD, such as a chartplotter, can show autopilot controls on its screen, which is often a TFT display.

If you already have an MFD at the helm, you might not need a separate control head with a display. Some autopilot packs include a control head, while others are "core packs" that require you to use an MFD or purchase a control head separately. This is a key distinction when comparing complete packs versus core packs.

The display type on an MFD is usually TFT, given the need for detailed charts. A dedicated control head might use either LCD or TFT. Your choice depends on whether you prefer a simple, dedicated display or want to integrate the autopilot controls into your existing navigation setup.

What to look for in listings

When reading autopilot listings, look for the display type and size. Terms like "Color LCD" or "TFT" are often mentioned in the title or specifications. For example, the Furuno NavPilot 300 is described as having a "4.1-inch Color LCD," while the NavPilot 1000 has a "5.7-inch Color LCD." These details help you compare visibility and readability.

Also note whether the control head is included in the pack. A complete pack usually includes a control head, while a core pack may not. If you are building a system from scratch, you need to account for the control head. If you already have an MFD that can control the autopilot, a core pack might be sufficient. You can see our selection of core packs for examples.

Finally, consider the placement of the control head. A display that is easy to read from the helm is essential. If you plan to mount the control head in a location with direct sunlight, a TFT display might be worth the extra cost. If it will be shaded or you have a backup MFD, a simpler LCD could be fine.

Questions to ask the seller

If the listing does not specify the display type, ask the seller directly. Questions like "Is this a TFT or standard LCD display?" and "What is the screen brightness?" can help you understand the readability. You can also ask about the power draw in amps, not just the voltage range.

Another question is whether the control head can be used as a repeater or if it is the primary control. Some systems allow multiple control heads, which can be useful on larger boats. The maker's manual or a dealer can answer these questions. For a deeper look at control head features, see our learn article on control head options.

Remember that the site's comparisons are based on stated details. If a detail is missing, it is not assumed. This means you should verify any critical specification with the seller or the maker before making a purchase.

Making your choice

In summary, the choice between LCD and TFT comes down to your priorities. If sunlight readability and color contrast are top concerns, a TFT display is likely the better option. If you want a simpler, potentially lower-power display, a standard LCD might suffice.

Consider the overall system: the control head is just one part. The drive unit, course computer, and sensors are equally important. Use the site's guides to compare complete packs and core packs, and look for the display type in the stated details.

For most boat owners, a TFT display on a dedicated control head or MFD offers the best balance of readability and functionality. But the right choice depends on your boat's helm layout and how you use the autopilot. Take the time to compare the options and ask questions if a detail is unclear.

What to pick for your situation

Questions

Is a TFT display always better than an LCD?

TFT displays generally offer better contrast and color, which can improve readability in sunlight. However, standard LCDs can be perfectly adequate, especially if the display is shaded or you have a backup MFD. The best choice depends on your specific needs.

Do TFT displays use more power than LCDs?

TFT displays may use slightly more power due to backlighting and faster refresh rates, but the difference is often small compared to the drive unit's consumption. Check the specifications for current draw if power is a concern. You can also read about autopilot power consumption for more context.

Can I use my chartplotter as the autopilot control head?

Many autopilot systems can be controlled from a compatible multifunction display, which often has a TFT screen. This can save you from buying a separate control head, but you need to ensure compatibility with your autopilot system. See our guide to autopilot integration for general information.

What if the listing doesn't specify the display type?

If the display type is not stated, ask the seller or check the maker's manual. The site's comparisons only use stated details, so a missing specification means it is not assumed.