Start with the active viewing area and enclosure, then compare resolution, interface, luminance, temperature range and touch requirements within the practical size range.
Compact modules for handheld instruments and small controllers, with QVGA and VGA examples.
View 3.5-inch modules →A practical format for compact HMI panels, instruments and embedded control equipment.
View 4.3-inch modules →More display area for HMI, medical equipment and embedded devices without moving to a large panel.
View 5-inch modules →Common for automation, EV charging, monitoring and industrial HMI projects that need more UI space.
View 7-inch modules →A 4:3 industrial format for high-brightness HMI, control and measurement equipment requiring a larger viewing area.
View 12.1-inch module →Two modules with the same diagonal can differ in aspect ratio, active area, outline, thickness, FPC exit and mounting geometry. Review the drawing before committing the enclosure.
Diagonal size is useful for navigation, but engineering selection starts with the visible area, aspect ratio, pixel workload and enclosure. Use the size group to build a shortlist, then compare the exact drawings and interfaces.
Compact displays can reduce front-panel area, but text, icons and touch targets must remain usable at the viewing distance. Compare verified 3.5-inch QVGA and VGA considerations and the handheld instrument selection path before fixing the UI.
The same diagonal does not guarantee the same visible width and height. Confirm active area, bezel, outline, thickness, mounting and FPC exit from the current drawing.
More pixels affect frame-buffer memory, transfer bandwidth and timing. Review the processor output and the panel's native timing instead of choosing resolution from visual preference alone.
Panel size does not determine the link by itself. Match the host output, resolution, frame rate, pinout and signal route with the RGB, LVDS, MIPI and MCU interface guide.
The same size can be offered in different luminance and touch configurations. Treat high brightness, PCAP, cover glass and bonding as project requirements, not automatic properties of a size class.
If the host cannot drive the panel natively, a controller or bridge may be needed. Check input, output timing, power and firmware using the controller-board selection guide.
No. They can differ in aspect ratio, active area, outline, thickness, mounting, FPC position, connector, pinout, timing, luminance, temperature and touch stack. Compare the current datasheets and mechanical drawings.
They should be developed together. If an enclosure already exists, start from its opening, available depth, mounting and FPC route. For a new design, begin with the user interface and viewing distance, then reserve a realistic mechanical envelope.
No. Interface selection follows the exact panel, resolution, timing, host capability, connector and signal route. Do not infer an interface from diagonal size.
Provide the target viewing area or enclosure drawing, preferred aspect ratio, UI resolution, host platform and interface, luminance and temperature needs, touch method, cover-lens concept and project stage. Use the requirements checklist to identify open items.