Innolux AT043TN24 V.7 4.3 Inch 480×272 RGB / TTL TFT LCD Panel

Innolux AT043TN24 V.7 4.3 Inch WQVGA RGB TTL Panel with 4-Wire RTP

Innolux AT043TN24 V.7 is a 4.3 inch WQVGA TFT LCD panel for compact industrial equipment, replacement sourcing and OEM HMI integration. The public specification confirms 480×272 resolution at 128 PPI, 500 cd/m² typical brightness, parallel RGB 1-channel 8-bit interface with 40-pin FPC, 95.04×53.856 mm display area, 105.5×67.2×1.33 mm screen size, 70/70/50/70 viewing angle, 500:1 contrast ratio, 16.7M colors, TN normally white transmissive mode, WLED 8S1P backlight rated 20K hours without driver, 4-wire resistive touch, 0.614W total consumption and -20 to 70 °C operation.

Confirmed Product Specifications

Compact HMI Replacement Fit

This panel is relevant for compact industrial HMIs, handheld controllers, access equipment, test instruments and small service panels where 4.3 inch WQVGA is already used. The integrated 4-wire resistive touch is useful for gloved operation or simple equipment interfaces.

RGB TTL Interface Review

The host must support parallel RGB 1-channel 8-bit through a 40-pin FPC. Confirm pinout, voltage, timing, backlight circuit and touch tail routing before ordering. If the host uses SPI, MIPI, LVDS or HDMI, a controller or redesign is required.

Resistive Touch Scope

The page lists 4-wire resistive touch. Buyers should confirm touch tail, controller board, calibration method, overlay durability and whether the equipment requires stylus, glove or wet operation. Resistive touch is practical but should be tested under the real front-panel stack.

Brightness and Backlight

The 500 cd/m² brightness is strong for a 4.3 inch indoor industrial panel. The WLED backlight is listed without driver, so backlight drive scope should be confirmed. If the display is used in sunlight-facing equipment, test readability through the final lens.

Mechanical Fit

Replacement buyers should compare FPC exit, screen thickness, active area and mounting structure. Small panels can fail replacement because of cable direction or touch-tail position even when size and resolution match.

Procurement Control

For repeat orders, record exact revision, FPC, touch tail, backlight circuit and sample approval evidence. Innolux variants can differ in touch, viewing angle and mechanical stack, so revision control matters.

When the 4-Wire RTP Is Useful

The integrated 4-wire resistive touch makes this model relevant for industrial products where operators use gloves, stylus input or simple single-touch menus. It can be more predictable than PCAP in electrically noisy equipment, but it should be tested for touch force, calibration drift, surface wear and front-panel sealing. The RFQ should clarify whether LCDind supplies only the LCD/RTP panel or also the touch controller.

Replacement Risk Items

Compact panels are often replaced because a machine needs continued service support, not because the buyer is redesigning the UI. Confirm original Innolux revision, FPC orientation, backlight pins, touch tail, bezel opening and mounting pressure. A minor FPC difference can block installation in a small enclosure.

Backlight and Power Confirmation

The WLED backlight is listed without driver. Confirm whether the existing product already has the correct backlight driver, or whether LCDind should recommend a driver path. The 500 cd/m² brightness is useful, but the final brightness through a protective lens or resistive overlay should be checked with the actual equipment.

Sample Approval

Run the sample with the real host UI, not only a test pattern. Verify boot image, touch calibration, menu operation, edge touch, backlight uniformity, viewing angle and hot/cold operation. If the product is for repair stock, compare the sample with the failed original panel before ordering volume.

Approval Records for RTP Replacement

For a resistive-touch replacement, keep the touch calibration record, tail orientation photo, connector photo, screen label and front-panel fit photo together with the approved sample. If the touch overlay is used by operators every day, also define acceptable touch force and surface wear criteria. This documentation helps service teams reorder the same configuration instead of a visually similar non-touch or different-touch version.

Final Buyer Check

Before repeat purchase, confirm whether the buyer needs the RTP version specifically, because no-touch and touch variants are not interchangeable in a finished HMI.

RFQ Checklist

• Confirm exact Innolux AT043TN24 V.7 revision, 40-pin FPC pinout, RGB timing and voltage.
• Define 4-wire RTP controller/calibration scope, front lens and touch usage environment.
• Provide old panel photos, enclosure drawing, cable route and backlight driver requirement.
• State quantity, forecast, inspection criteria and substitute approval rules.

Engineering Review Note

The specifications above are taken from the current public product page and should be treated as selection inputs, not final system approval. Before sample purchase or production order, LCDind should review host interface, drawing, optical stack, touch requirement, controller-board scope, operating environment, supply quantity and inspection criteria. This update keeps the existing product URL unchanged while making the page more useful for B2B engineering and sourcing decisions.

Engineering FAQ

Does it include touch?

Yes. The detailed table lists 4-wire resistive touch.

What interface is confirmed?

Parallel RGB 1-channel 8-bit with 40-pin FPC.

Is the backlight driver included?

The table lists WLED without driver, so scope should be confirmed.