Graphic Overlay

A functional graphic overlay is designed for use with rubber keypads, membrane switches or as a touch screen panel interface for control panels. In these applications, the printed graphics and text are used to providing operational instructions or safety warnings and label overlay buttons and controls.

However, with an aesthetic purpose, decorative membrane switches graphic overlays and panel overlays are printed with custom graphics, company logos or product information. They act as an intermediary between the user and the machine through functional descriptions, without conductive traces or circuitry.

The membrane switch overlay or custom control panel overlay provides a variety of embossed keys, matte or glossy finishes, and a protective coated overlay to reduce the likelihood of fading. It also includes different material thicknesses from 0.125mm to 1mm to meet customers' specific applications.

Graphic Overlays for Any Industry
Custom graphic keypad overlays can improve the overall appearance and prevent moisture, dust, and debris from penetrating the electrical components such as switches or touch screens. Some of the common uses include:

Residential and commercial appliances
Machinery control panels
Medical equipment
HVAC equipment
Gas station pumps
Automotive dashboards

Custom Graphic Overlay Capabilities
Specializing in graphic design overlays as static components for membrane switches and rubber keypads and custom graphic panel, we will help you design a customized graphic overlay which meets both functional and aesthetic needs. We can offer the following services:

Digital overlay printing
Prototyping
In-house embossing
Custom control panel overlay printing
Laser & die-cutting
Custom graphic overlays can be made in sizes from to 30" to 40". Additionally, in order to improve visibility in low light applications, backlighting can also be added to the overlay panels. We also offer special ultraviolet selective textures and ultraviolet hard coat treatments which can protect lens areas from chemicals and scratching.

How to Design the Graphic Overlay?
Sample: Provide drawings of graphic overlay prototypes that all dimensions and physical characteristics including colors or actual samples for copy are clearly shown.

Colors: Identify the colors which you want your switch overlays to have by Pantone (PMS) RAL color number or a color sample. It is important to supply the exact standard for which our color match will be evaluated.

Borders and Outlines: Avoid circles within circles, or outlines which are close to cutouts or outer edges because any misregistration will be visually accentuated.

File Format: It's best to receive design files from the native software packages. (ie Adobe Illustrator, Corel Draw or PDF files)

Background: Light text and dark backgrounds will show less wear and dirt and greater clarity. Try making the control panel overlay or the membrane overlay drawings clear.

Text: Block lettering provides the most legible copy. Try to use common fonts. Positive letter strokes should be a minimum of .008'' and .012''for negative letter stroke.

Komkey is a recognized worldwide membrane switches supplier specializing in Membrane switch, Silicone rubber keypad, Graphic overlay, and touch screen. In the mean times, we also provide assembling and cutting for a custom application such as custom membrane keypad.