Finishing Solutions for Backlit Displays
Get the precision needed to ensure the icon on the display is vividly illuminated.
Description
Backlit displays can be found everywhere from airplane cockpits, automobile dashboards, appliances and electronics. They are so common that they often go unnoticed or seem simple. In fact, the process and technology required to manufacturing these displays is actually quite demanding.
Challenge
Manufacturing backlit displays is more complicated that it may appear. There is considerable effort and precision needed to ensure the icon on the display is vividly illuminated.
The plastic parts are first coated with a light semi-transparent paint. Next, a darker color is coated over the first light color coat. To create the icon, a laser is used to etch away the black paint in the shape of the icon. This creates the light and dark contrast which creates the backlit display.
In this application the surface finish quality is key, especially in high value luxury cars. In addition to this, the coating thickness is also key. If the base color is too thick, the light will not properly shine through. If the darker top color paint coat is too thick, the laser will not properly etch the layer to show the lighter undercoat. If the top coat is too thin, the laser will etch both layers creating an inconsistent display.
Solution
Solving this challenge requires the utmost precision. Precision flow rate control, consistent spray gun performance, and fine atomization all work together to ensure an even and uniform surface is created. The ProMix PD2K closed loop control controls the flow rate, while the superior atomization of AirPro EFX ensures this is accomplished.
This application also requires precise applicator movement typically performed by a robot. The PD2K Applicator Control ensures all paint parameters are managed with one system for easy robotic integration. In applications that require the highest level of performance, Graco’s ProBell delivers the finest particle atomization for maximum coating thickness control.
Electronics
Improve electronics manufacturing productivity, compete more effectively and maintain an edge with solutions in bonding, sealing, thermal management, and more.
Related Articles
5 Reasons to Say Yes to Automated Paint Lines and Robots
Why invest in factory automation and robotic painting? The five top reasons involve cost, quality, waste, flexibility, and your workforce.
Precise Oil Delivery in 5 Seconds
New controller easily updates fluid dispense system, eliminating manual pouring and weighing for motor manufacturer.
Mold Release Agent Application
Make sure your mold release agent evenly coats the injection mold, so that parts do not stick.