A custom LCD module project should be reviewed from both the display side and the final product side. The correct LCD solution depends on size, structure, interface, optical performance, environment, touch requirement, backlight, controller board, cable direction, quantity and production feasibility.
LCD Size, Active Area and Outline Size
The display size must match the final product structure.
Review items include: Diagonal size, Active area, Outline size, Viewing area, Product window size, Thickness limitation, Mounting space, Bezel requirement, Front glass size if needed, Housing tolerance.
Core Line
The LCD must fit the real mechanical structure, not only the drawing description.
Resolution and Aspect Ratio
Resolution should match the content type, user interface and system output.
Review items include: Required resolution, Existing software UI, Image or text detail, Landscape or portrait use, Bar-type or special aspect ratio, System output resolution, Scaling requirement, Viewing distance.
Core Line
Resolution should be selected according to content and system compatibility, not only by panel availability.
Interface and Signal Matching
Interface mismatch is one of the most common problems in LCD integration.
Review items include: RGB, LVDS, eDP, MIPI, SPI, MCU, HDMI through controller board, USB touch if touch is required, Backlight power, Existing mainboard output, Timing compatibility, Control board availability.
Core Line
A display that cannot communicate with the customer’s system is not a usable display solution.
Backlight and Brightness
Backlight design affects visibility, power consumption, heat and product lifetime.
Review items include: Brightness requirement, Indoor/semi-outdoor/outdoor-facing condition, Backlight voltage & current, LED backlight structure, Uniformity requirement, Dimming requirement, Heat dissipation, Power limitation, Operating hours, Optical bonding/front glass effect.
Core Line
Brightness must be matched to the real environment and product structure.
Touch Panel and Cover Glass
Many custom LCD projects require a complete front display assembly.
Review items include: Touch or non-touch, Capacitive or resistive touch, Touch size, Cover glass size & thickness, Black border & logo printing, Holes/cutouts, AG/AR/AF surface treatment, Optical bonding, Touch controller & interface, Waterproof or sealed front structure.
Core Line
Touch and cover glass should be reviewed together with the LCD, not added after the LCD is selected.
FPC, Cable and Connector Direction
Even when the LCD size is correct, the FPC or connector direction may still make integration impossible.
Review items include: FPC length & direction, Connector position & type, Pin definition, Cable length, Cable bending space, Internal routing, Assembly method, Serviceability.
Core Line
Small cable details can decide whether the LCD can actually fit into the final product.
Operating Environment
Different applications require different reliability levels.
Review items include: Indoor/semi-outdoor/outdoor-facing use, Operating temperature, Storage temperature, Humidity, Vibration, Shock, Long operating hours, Sunlight exposure, Public-use environment, Industrial/medical environment, Cleaning or chemical exposure.
Core Line
The LCD module should be selected for the real operating environment, not only for laboratory testing.
Production Feasibility
A custom LCD project must also make sense commercially.
Review items include: Prototype quantity, Pilot quantity, Mass production quantity, Tooling requirement, MOQ, Unit price target, Lead time, Long-term supply plan, Component availability, Product lifecycle, Testing requirement, Quality standard.
Core Line
Custom LCD development must balance technical feasibility, tooling cost, MOQ, lead time and production value.
Industrial TFT LCD Displays
LED Backlights
FPC & Cable Assemblies