The jumpers on the back of a COB character LCD displays and COB dot matrix LCD modules have two primary functions.
- Adjust the brightness of the LED backlight.
- Adjust the LCD module contrast
Many times the PCB contains jumper settings that allow this adjustment. If this is the case, then there is no tooling required and this is not considered to be a customized display, just a modified LCD.
When the COB display does not contain a jumper, then the PCB needs to be redesigned. This will require a new LCD design. We would consider this to be a semi-custom or customized LCD to redesign the PCB , this would require tooling fees.
Contact Focus Displays with any questions you may have. We can support your engineering requirements needs from initial prototype through final production.
