iPhone XR/11 Aftermarket COF VS In-Cell LCD Screen Comparison
Jul 8,2022
COF COG LCD

What is COF iPhone Screen?
Driver chip packaging technologies mainly include COG (Chip-on-Glass) and COF (Chip-On-Film).
COG is to bond the Driver IC to the glass, and COF is to bond the Driver IC to the FPC.

Screen-structure-of-incell-screen

What is Incell LCD?
In-cell displays are revolutionary in the sense that they combine a digitizer, use touch input, and
integrate an LCD screen into a single-layer display. Some reports also suggest that in-cell
technology displays provide better resolution compared to standard LCD screens.

Let's take the iPhone XR as an example and do a detailed comparison.

1. Production Process:

COF: TP and LCD screen are separate;
In cell: IN CELL process, non-original process;

2. Screen appearance:

1) The TP cable and the LCD cable are made into an integrated cable.
     The TP cable has no actual function and has a decorative effect.
2) Since there are many liquid crystal cable components in the IN CELL process,
  
the extra cable components can only be placed outside the originally designed component area.

3. Performance comparison:

First, the In-Cell XR screen assembly will be stressed during replacing the screen,
which will cause errors in the structure of the iPhone XR and will hurt the backlight.

Second, the extra components in the In-Cell XR are placed outside the non-original
design area-the picture of the extra positions of the components.

  • It will produce iPhone signal noise interference and TP error touch.
  • Exposed components will display abnormally, not display, black screen and other problems.

Third, the In-Cell XR plug-in chip will cause excessive power consumption of the screen,
serious cell phone fever, and cell phone battery is not durable.

What's more, we have found a new source of incell: 6.05 inch glass change screen
For details, please refer to our parameter comparison.

parameter comparison

In summary, COF touch is more stable, no messy touch and automatic screen skipping phenomenon,
with stable touch performance, Incell screen compared to COF display color is a little worse,
but the price is lower than COF.

6.05 inch incell lcd

If you are more demanding on price, you can choose 6.05 inch in-cell lcd. As the picture shows,
the difference is very small. Any other questions, please feel free and contact us.