Developing a custom LCD can require engineering work, tooling, documentation, and other one-time activities before the display enters production.
These one-time costs are often referred to as tooling or NRE, meaning Non-Recurring Engineering.
What is included in custom LCD tooling depends on the display technology, level of customization, and requirements of the individual project. For that reason, OEM engineers should understand exactly what a tooling quotation covers before approving development.
Focus LCDs supports custom display projects from initial requirements through prototyping and production.
What Is Custom LCD Tooling?
Custom LCD tooling refers to the one-time engineering and manufacturing preparation required to develop a display that differs from an existing standard product.
Depending on the project, this may involve work associated with:
- LCD glass design
- Mechanical drawings
- Electrical requirements
- Segment or graphic layouts
- FPC or connector design
- Backlight configuration
- Touchscreen integration
- Cover glass
- PCB or PCBA development
- Production fixtures or processes
- Prototype preparation
- Engineering review
Not every project requires all of these items.
The required tooling depends on what is being customized.
What Does an LCD Tooling Fee Include?
There is no single universal list of items included with every custom LCD tooling charge.
Depending on the project, the quotation may include engineering work, tooling required for production, drawings, prototype units, or other development activities.
OEMs should confirm the exact scope in the project quotation and documentation.
Important items to clarify include:
- What engineering work is included?
- What physical tooling is required?
- Are prototypes included or quoted separately?
- What documentation will be supplied?
- How many design revisions are included, if applicable?
- What happens if requirements change after approval?
- What production requirements apply after development?
Clarifying these items early reduces misunderstandings later in the project.
Does Paying for Tooling Mean the Customer Owns the Design?
Tooling payment should not automatically be interpreted as establishing ownership, exclusivity, intellectual-property rights, or control of the design.
Those issues depend on the specific project documentation and commercial terms.
If design ownership, exclusivity, tooling ownership, or transfer rights are important to an OEM program, they should be discussed and documented before the project begins.
This is especially important for products expected to remain in production for many years.
Custom Monochrome LCD Tooling
Monochrome LCDs offer significant customization flexibility because the LCD glass itself can be designed around the application.
Depending on the technology, Focus LCDs can customize characteristics such as:
- Overall dimensions
- Glass shape
- Segment layout
- Resolution
- Character or graphic configuration
- Viewing mode
- Backlight
- Connector or FPC configuration
- Other assembly requirements
A custom segment LCD, character display, or monochrome graphic display may therefore require tooling associated with the unique glass and assembly design.
For a more detailed discussion of this process, see our Custom Segment LCD Design Guide.
TFT Tooling Is Different
TFT customization follows a different approach.
Focus LCDs does not modify the TFT glass itself.
Instead, an established TFT panel is selected, and customization can be applied to the components surrounding it.
Depending on the project, this may include:
- Custom FPC cables
- Backlights
- Resistive or capacitive touchscreens
- Custom cover glass
- Optical bonding
- Adhesives
- Custom PCB or PCBA when incorporated into the LCD assembly
These modifications can involve their own engineering or tooling requirements.
For more information, see Custom TFT Displays: What Can Actually Be Customized?.
Are Prototype LCDs Included with Tooling?
Prototype requirements are project specific.
Some custom LCD projects include prototype or sample units as part of the development process, while others may handle them separately.
The important point for the OEM is to confirm:
- Whether prototypes are included
- How many prototypes are planned
- What will be evaluated
- What approval is required before production
- How requested changes may affect the project
A prototype should be treated as an engineering verification step rather than simply an early production unit.
The OEM should compare the prototype against the approved requirements before authorizing production.
What Should Be Reviewed During Prototype Approval?
Prototype evaluation may include:
- Mechanical dimensions
- Viewing area
- Segment or pixel appearance
- Backlight performance
- Viewing direction
- Interface operation
- Connector or FPC configuration
- Touchscreen operation
- Cover-glass alignment
- Optical appearance
- Electrical compatibility
The appropriate checks depend on the display and application.
Any required changes should be identified before production approval whenever possible.
Does Custom LCD Tooling Have a Minimum Order Quantity?
Custom display projects can have production requirements that differ from standard stocked products.
MOQ depends on factors such as:
- Display technology
- Custom components
- Manufacturing requirements
- Expected annual usage
- Production configuration
- Other project-specific requirements
For that reason, Focus LCDs does not apply one universal MOQ to every custom LCD project.
Engineers should provide estimated annual usage as early as possible so the proposed display approach can be evaluated against the anticipated production program.
How Long Does Custom LCD Tooling Take?
There is no single lead time that accurately represents every custom LCD project.
Timing can depend on:
- Display technology
- Complexity of the customization
- Engineering review
- Drawing approval
- Tooling requirements
- Prototype requirements
- Requested revisions
- Component availability
- Production requirements
The current project schedule should therefore be confirmed during quotation and development.
For a broader explanation, see LCD Lead Times: What OEM Engineers Should Consider.
Why Requirements Should Be Defined Before Tooling Begins
Changes become more disruptive after drawings, tooling, or prototypes have been completed.
Before authorizing tooling, the engineering team should define as much of the following as possible:
- Mechanical dimensions
- Viewing area
- Display content
- Resolution or segment requirements
- Interface
- Voltage requirements
- Backlight requirements
- Viewing conditions
- Connector or FPC requirements
- Touchscreen requirements
- Cover-glass requirements
- Operating environment
- Expected annual usage
- Product lifecycle
Not every parameter needs to be known at the first conversation, but critical requirements should be resolved before final design approval.
What Happens if the Design Changes?
Engineering changes during a custom LCD project are sometimes necessary.
The impact depends on when the change occurs and which part of the display is affected.
A change made before tooling begins may be relatively straightforward. A change requested after tooling or prototype production may require additional engineering work, revised documentation, new tooling, or another prototype cycle.
For this reason, OEMs should review drawings and specifications carefully before approving the design.
Tooling and LCD Lifecycle Planning
One reason companies develop custom LCDs is to create a display specifically suited to a long-term OEM product.
However, customization does not eliminate the need for lifecycle planning.
The OEM should still consider:
- Expected product life
- Annual demand
- Critical components
- Documentation
- Change-control requirements
- Future replacement risk
- Qualification requirements
These factors are especially important when changing the display later would require mechanical, electrical, firmware, or regulatory work.
Standard LCD or Custom LCD?
A custom display is not always necessary.
If an existing standard LCD meets the electrical, optical, and mechanical requirements of the application, starting with a standard product may provide the simplest development path.
Customization becomes valuable when the standard display cannot adequately meet important product requirements.
Focus LCDs supports both standard and custom displays, allowing the engineering team to evaluate the appropriate approach before committing to custom tooling.
View our custom display capabilities.
What to Ask Before Approving Custom LCD Tooling
Before authorizing a custom display project, confirm:
- What exactly is being customized?
- What does the tooling or NRE charge cover?
- What documentation will be provided?
- Are prototypes included?
- What approval steps are required?
- What happens if the design changes?
- What production requirements apply?
- What MOQ applies to this specific project?
- What is the current project schedule?
- What lifecycle requirements should be considered?
Having these questions answered before development begins gives both the OEM and display supplier a clear technical baseline.
Start a Custom LCD Project
Focus LCDs works with OEM engineering teams on custom monochrome LCDs and customized TFT assemblies.
The first step is to provide the available mechanical, electrical, optical, environmental, and production requirements. Our engineering team can then evaluate whether a standard display, modified-standard solution, or custom display is appropriate.
Contact Focus LCDs engineering support to discuss your display requirements.
