| Exact model identity | Check the complete part number, including suffixes and revision markings. | All characters and revision details must match the original unit or an explicitly approved replacement. | Label on the component, equipment bill of materials, or manufacturer datasheet. |
| Display technology | Identify the panel type, such as TFT LCD, and whether the assembly includes a touchscreen. | Technology and touch functionality must meet the equipment’s requirements; a touchscreen is not interchangeable with a non-touch panel without system support. | Datasheet, wiring diagram, or inspection of the original assembly. |
| Screen size and active area | Compare the diagonal screen size and the visible image area. | Physical viewing area must fit the enclosure and align with the original bezel opening. | Mechanical drawing or measurements of the original panel. |
| Native resolution | Confirm the panel’s native pixel dimensions and aspect ratio. | Resolution and aspect ratio must be supported by the display controller and match the required image layout. | Datasheet and host-system display settings. |
| Interface and signal format | Verify the interface type, signal assignment, and required timing. | Interface, pin assignment, and signal levels must be compatible; similar connectors do not guarantee compatible signals. | Connector pinout, panel datasheet, and host-board documentation. |
| Connector and cable | Check connector location, pin count, pitch, orientation, and cable routing. | The connector must mate correctly without modifying the cable or reversing signal orientation. | Mechanical drawing and direct comparison with the original assembly. |
| Power requirements | Confirm logic voltage, backlight power requirements, and current limits. | All supply values must remain within the host system’s documented output limits. | Electrical characteristics in the datasheet and host-board power specifications. |
| Backlight system | Identify the backlight technology and its driver requirements. | The host must support the replacement backlight’s driver, voltage, current, and dimming method. | Datasheet and backlight-driver documentation. |
| Mechanical fit | Compare overall dimensions, thickness, mounting points, and bezel clearances. | The panel must install securely without stressing the glass, cable, or enclosure. | Dimensioned drawing and physical fit check. |
| Operating environment | Review the specified operating temperature, storage temperature, and environmental limits. | Rated limits must cover the equipment’s actual operating and storage conditions. | Datasheet environmental specifications and equipment requirements. |
| Final compatibility decision | Compare the candidate against every electrical, optical, and mechanical requirement above. | Choose a replacement only when all critical items are verified; treat any undocumented specification as unconfirmed. | Matched datasheets, drawings, and a controlled fit-and-function test. |