What is the incell screen?

2023-03-29

Incell screen is a touch screen.

Incell is a screen bonding technology, which represents the integration of the touch panel and the LCD panel. That is, the touch panel is embedded in the LCD pixels. The advantage of Incell technology is to reduce the thickness of the screen, allowing manufacturers to make more effective use of the internal space of the embedded screen device. In addition, screens using Incell technology have better display quality.

Incell screens first appeared on Apple's iPhone 5, providing the advantage of reducing the thickness of the phone and allowing manufacturers to make more effective use of the internal space of the phone. Furthermore, screens using Incell technology have better display quality. Incell technology is now very mature and the yield of major manufacturers is constantly improving.

In-cell screens have two related technologies: in-cell and on-cell.

 In-cell technology embeds the touch panel into the LCD pixels.

On-cell technology embeds the touch panel between the color filter substrate and the polarizing plate.

 

In-Cell technology embeds the touch panel function into the LCD pixels, making the screen thinner and lighter. However, In-Cell screens also require a matching touch IC, otherwise it is prone to erroneous touch sensing signals or excessive noise. Therefore, for any display panel manufacturer, the threshold for entering In-Cell/On-Cell touch screen technology is quite high and still requires overcoming the hurdle of low yield.

 


Additional knowledge: The difference between incell screens and IPS

 

IPS screens have the full name of In-Plane Switching and were introduced in 2001. It was called "SuperTFT" at the time, which means that IPS was based on TFT screens. Its electrodes are on the same plane instead of the top and bottom planes of other LCD panels. In addition, IPS screens have fast response times, wide viewing angles, environmental protection, power saving, and touch without water ripples. Nowadays, more and more phones are using IPS screens.

The biggest difference between Incell screens and IPS screens is that Incell belongs to a screen bonding technology while IPS is a real screen. For example, Apple's iPhone 5 uses Incell technology, but its screen is still an IPS screen. The combination of these two technologies allows users to enjoy better screen image quality.

 

 

 

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