An In-Cell TFT display integrates the touch sensing function directly into the LCD panel structure instead of adding a separate external touch sensor layer.
This architecture is useful when product designers need a thin, lightweight and highly integrated display with touch functionality.
Traditional touch displays may use separate touch layers positioned above the TFT LCD.
In-Cell technology integrates touch sensing elements within the LCD structure.
This reduces the number of separate layers and can help achieve:
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HOTDISPLAY's 2.1-inch 540×540 In-Cell round TFT, for example, integrates display and touch using an AXS15260D controller and supports 24-bit RGB display plus I2C touch communication.
| Feature | Conventional Touch | In-Cell TFT |
|---|---|---|
| Touch structure | Separate layer | Integrated |
| Module thickness | Higher | Lower potential |
| Optical layers | More | Fewer |
| Parallax | More noticeable | Reduced |
| Integration | Conventional | Highly integrated |
| Design flexibility | High | Application-dependent |
Useful when internal product space is limited.
Fewer optical layers can improve transmission and reduce visual parallax.
Display and touch functionality are closely integrated.
An integrated architecture can simplify the overall display assembly.
In-Cell TFT Applications
| HOTDISPLAY In-Cell CustomizationCustomization can include:
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A current 4-inch HOTDISPLAY In-Cell product combines 240×1020 resolution with integrated touch, while another 2.8-inch round model provides 540×540 resolution and In-Cell touch.
