I. The Role of
Backlighting in Membrane Switch Design
1. Visual
Effect: Used to highlight or draw attention to certain key areas of the
graphic overlay, or to aid visibility in low lighting conditions.
2. Enhanced
Usability: Makes the graphic overlay elements more visible in dim lighting,
helps users identify the correct control options, and serves as an indicator of
active functions.
II.
Considerations in Backlighting Design
1. Power
Consumption and Heat Production: Some backlighting technologies with low
power consumption and heat generation are more suitable for battery-powered
devices and applications where minimizing power demands is desirable.
2. Aesthetics:
The backlighting options should be carefully chosen based on the usability
requirements and the general layout of the graphic overlay to enhance the aesthetic
appeal of the pro…