The Magic of Secret Til-Lit Panels in Your Membrane Switch

RH Technical Industries is highlighting the innovation behind its Secret Til-Lit Panels, also known as Dead-Front Graphics, which are transforming Human-Machine Interface (HMI) design. The technology helps manufacturers create uncluttered, high-end control panels that only display information when needed—combining functionality, durability, and a sleek modern appearance.

When designing the perfect HMI, reliability and user experience are key. According to RH Technical Industries, Secret Til-Lit panels offer a simple yet highly effective way to achieve this. The technology ensures that certain legends, symbols, or indicators remain invisible until illuminated by backlighting, blending seamlessly into the background when inactive.

Smart, Sleek and Intuitive Design
A Secret Til-Lit panel works by concealing graphics beneath the surface until the LED backlight activates them. This creates a clean, professional look while ensuring important alerts or functions are only visible when relevant. For example, an ‘Error’ message remains hidden until an actual fault occurs—instantly drawing the user’s attention when necessary.

From a user perspective, the advantages are clear:

• Zero Confusion: Panels remain tidy and easy to understand.

• High-End Feel: The design enhances brand image with a refined, minimalist look.

• Low-Light Visibility: In dim environments, backlighting ensures vital information stands out clearly.

Applications Across Industries
RH Technical Industries’ Til-Lit panels are already being used across multiple sectors, including automotive, medical, industrial, and consumer electronics.

• Automotive & Mobility: Ideal for “shy tech” interiors where icons appear only when needed—such as seat heating or drive mode indicators.

• Medical Devices: Perfect for ventilators and monitoring systems, where alerts must be visible instantly but not distracting during normal operation.

  

• Industrial Control: Enhances rugged equipment like CNC machines and robotic panels, offering clear, focused illumination when required.

• Security & Access Control: Enables discreet designs that reveal controls or indicators only during use.

• Consumer Appliances: Adds a touch of sophistication to modern kitchen and home electronics by hiding controls until activated.

Precision Engineering Behind the Panels
The Secret Til-Lit effect is achieved through expert control of printing layers and specialised inks that precisely manage light transmission. RH Technical Industries integrates this process seamlessly into each custom membrane switch design, ensuring that illuminated symbols are perfectly clear and consistent.

The result is a durable, sealed, and intelligent control panel that gives users exactly the information they need—only when they need it.

RH Technical Industries continues to lead in innovative membrane switch design, helping manufacturers elevate both functionality and aesthetics.

For more information or to discuss how Secret Til-Lit technology can enhance your next product, contact the RH team today.

For more information on The Magic of Secret Til-Lit Panels in Your Membrane Switch talk to RH Technical Industries Ltd