2.8-Inch In-Cell TFT LCD 540x540 Round Display AXS15260D - China Suppliers Factory Direct
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Engineered for next-generation smart devices, this 2.8-inch In-cell TFT LCD features a circular form factor that delivers sharp, vibrant visuals through its high-resolution IPS panel. With a full viewing angle and high brightness, it ensures excellent readability across diverse lighting conditions—making it an ideal display solution where both aesthetics and performance are critical.
The defining advantage of this 2.8-inch In-cell TFT LCD lies in its advanced in-cell touch architecture. Unlike conventional optically bonded touchscreens that require a separate laminated sensor layer, the in-cell design integrates the touch sensor directly into the LCD cell. This integration results in a significantly thinner and lighter module, enhances optical clarity by minimizing parallax and boosting contrast, and strengthens reliability by eliminating the internal air gap. For product designs where space and durability are paramount, this 2.8-inch In-cell TFT LCD offers a clear competitive edge.
Engineered for robustness, this circular display incorporates comprehensive ESD protection, a wide operating temperature range suitable for demanding environments, and is powered by a dedicated driver chip with an RGB interface via a flexible printed circuit—ensuring stable performance and streamlined system integration.
Ideal for smart home appliances and robotic vacuum cleaners, this 2.8-inch In-cell TFT LCD combines superior image quality with a sleek, durable, and highly responsive touch interface. It delivers a premium user experience while simplifying integration, making it a compelling choice for modern, space-constrained product innovations.
| ITEM | PARAMETER DESCRIPTION | UNIT |
|---|---|---|
| TFT series | TFT-H028A28ZUIAX4G40 | |
| Diagonal size | 2.8" | Inch |
| Resolution | 540x540 | Dot |
| Dimensions | 110x110x4.67 | mm |
| Active area (AA) | 70.15x70.15 | mm |
| LCD type | 2.4 inch TFT LCD display | mm |
| Display viewing angle | Full View | |
| Aspect ratio | 1:1 | |
| Backlight type | LED white | |
| TFT driver IC | AXS15260D | |
| Brightness | 400 | cd/m² |
| Operating temperature | -20~70℃ | ℃ |
| Storage temperature | -30~80℃ | ℃ |
The 2.8-inch In-cell TFT LCD distinguishes itself fundamentally from standard capacitive touch screens through its manufacturing architecture. Conventional displays rely on a "GG" (Glass-Glass) or "GFF" (Glass-Film-Film) structure, where a separate touch sensor layer is laminated on top of the LCD panel. This creates an inevitable air gap or requires thick optical bonding. In contrast, the 2.8-inch In-cell TFT LCD integrates the touch sensor directly into the LCD cell.
| Feature | Conventional Capacitive Touch | 2.8-inch In-cell TFT LCD |
|---|---|---|
| Architecture | Separate touch sensor layer (GG/GFF) laminated on top of LCD | Touch sensor embedded inside the LCD cell |
| Thickness | Thicker (Typically 3.0mm – 4.0mm) | Ultra-slim (Reduced stack height) |
| Optical Clarity | Prone to parallax; light reflection due to air gap | Superior clarity; reduced reflection; higher contrast |
| Reliability | Higher risk of dust ingress between layers; lower structural integrity | Sealed structure; enhanced durability; eliminates interlayer contamination |
| Touch Sensitivity | Standard; can be affected by the distance from the sensor | Highly responsive; direct interaction with the LCD cell |
⭐ Key Advantages of the In-cell Process:
The adoption of in-cell technology in the 2.8-inch In-cell TFT LCD eliminates the need for a separate sensor layer. This integration results in a lighter module, maximizes optical transmittance for brighter visuals, and simplifies the supply chain by reducing the number of components required for assembly.
To efficiently integrate the 2.8-inch In-cell TFT LCD into your product development cycle, follow the streamlined workflow below. This process ensures proper initialization and validation of the in-cell touch functionality.
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1
Hardware Connection: Securely connect the 40-pin FPC of the 2.8-inch In-cell TFT LCD to your main board. Ensure the connector is locked to prevent signal interference, which is critical for the integrity of the in-cell touch data lines.
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2
Power-Up Sequence: Apply the recommended voltage. Unlike standard modules, this 2.8-inch In-cell TFT LCD requires a stable power supply to manage both the display backlight and the integrated touch controller simultaneously.
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3
Driver Configuration: Initialize the display using the AXS15260D chip specifications. The RGB interface must be configured to match the 540x540 resolution timing charts.
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4
Touch Calibration: Because the touch functionality is embedded within the LCD cell (in-cell), run a standard I2C calibration routine to map the touch coordinates precisely to the circular display area.
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5
Validation: Test for optical clarity and touch linearity, specifically at the curved edges of the circular module.
When sourcing the 2.8-inch In-cell TFT LCD, procurement specialists must move beyond standard cost analysis to evaluate long-term reliability and integration efficiency. The following strategy outlines critical criteria for supplier selection and risk management.
| Procurement Criterion | Strategic Consideration | Why It Matters for the 2.8-inch In-cell TFT LCD |
|---|---|---|
| 1. Supply Chain Stability | Verify the supplier's capacity for in-cell panel production. | In-cell yields are historically lower than standard touch panels. Ensure the supplier has a mature production line to avoid shortages. |
| 2. Technical Support | Confirm availability of driver code and reference designs. | The RGB interface combined with the AXS15260D requires specific timing configurations. Lack of engineering support can delay product launches. |
| 3. ESD & Durability | Request test reports for ESD (8KV) and operating temperature (-20~70℃). | Given the elimination of the air gap, the structural integrity is higher, but procurement must verify that the FPC bonding points meet industrial standards for robotics and smart appliances. |
| 4. Optical Validation | Demand samples for optical bonding verification. | Ensure the "in-cell" advantage (clarity, contrast) is consistent across the batch. Standard capacitive screens often suffer from optical distortion; this module should not. |
✅ Summary Strategy:
To optimize BOM cost and reduce assembly complexity, prioritize the 2.8-inch In-cell TFT LCD as a single-source component. Its integration of touch and display into one cell reduces the need for separate touch controllers and complex lamination processes. Procurement should focus on lifecycle management, ensuring that the driver IC and FPC design are standardized to support long-term production cycles typical for industrial and smart home applications.