T440s - cracked digitizer

[ryan1212]

My T440s has a small crack outside of the viewable area of the screen on the touch screen digitizer. It is only a cosmetic issue; except unless I disable the touchscreen in device manager the cursor floats around the screen and has phantom clicks, so its near impossible to do tasks like re-installing an OS.

I have 04X5379 which is made by "Victory Digital Display". It always has looked blurry/fuzzy/hazy compared to the IPS on my x220 or even the TN panel from my old T400.

Three questions:
1. Is it possible to replace just the digitizer and keep the current screen? Do things need to be heated up/unglued at great risk of damage, or is it relatively easy?

2. Is there a way to disable the touch digitizer in hardware - like unplugging a ribbon cable or some other hack?

3. If I need to replace the screen + digitizer together - are any of the other FRUs better quality (x220 LG IPS for reference)?
Touch ASM,0C00331,WOK 00HM075
TOUCH,INX140AG,AUO FHD 00HN860
TOUCH,INX140AG,AUO FHD 00HN861
TOUCH,INX140AG,AUO FHD 01AY892
Touch LCD ASM, SD10G84772, VIC 01LV979
FRU TouchLCD ASM 0C00331 WOK 04X4043

[RealBlackStuff]

Don't know if you can separate the digitiser or just replace it.
If you do away with touch (which I would recommend), you can buy many FHD screens, such as:
B140HAN01.3, B140HAN01.1, B140HAN01.2, LP140WF4-SPA1, N140HCE-EN1 and others.
However, for non-touch you also need another lid, eDP cable and camera-cable.
Get the T440s partslist here: https://download.lenovo.com/parts/Think ... 150520.pdf
Before you do anything, remove power and disconnect both batteries.

[ryan1212]

Thanks!

I have 00HM075 \ 04X5379- Victory Digital Display on this laptop.

It seems a lot more economical to replace the touch LCD than to convert this into a non-touch laptop.

Do all of the touch options on t440s/t450s lack crispness, or is it only the "Victory Digital Display" screen which has this? Is it caused by the digitizer/glass on top, or just a junk screen underneath?

Would it be much better if I replaced with MF0490 (AU optronics B140HAN01.2)?