NO. Not all LCD controller/drivers are created equal.
Focus Character LCD displays and Graphic LCD modules include built in controller drivers.
The function of the controller driver is to convert the customers’ firmware/software to characters and graphics.
Every few years the IC manufacturer discontinues their version of the driver and this forces the customer to switch controllers or rewrite their firmware.
Many LCD display data sheets call out a specific controller/driver and then add the words ‘or equivalent’. Equivalent does not always mean 100% equivalent. There are small differences between each manufacturer of controller/drivers. We find that 95% of customers can switch from one controller to another with no hiccups, but there is 5% that do have issues.
When we work with a customer on a new LCD project, regardless if this is a standard display or a customized LCD display, we suggest the following:
- Ask if the current controller is being discontinued.
- Test a sample of the controller/driver before ordering production quantities.
- Think about whether you need additional displays for your repairs. You may want a last time buy of your current controller.
Focus Displays designs and supplies custom LCD displays and can help you with your replacement LCD display needs.
