This is an original, brand new WQHD screen with a part number of 01YU646, 00NY679 or 00NY680. Any of them can be compatible with your ThinkPad X1 Carbon Gen 6, ThinkPad T490 and ThinkPad T490s.
Size: 14.0-inch WideScreen
Resolution: WQHD (2560 x 1440)
Backlight Type: LED
Surface Type: Glossy
Video Connector: 40 pin socket
Condition: Original, Brand New, No dead pixel
Warranty: One (1) Year
ThinkPad X1 Carbon Gen 6 (20KG, 20KH)
ThinkPad T490 (20N2, 20N3)
ThinkPad T490s (20NX, 20NY)
01YU646 JDI 14.0 WQHD IPS Glare
00NY680 JDI 14.0 WQHD IPS Glare
00NY679 AUO 14.0 WQHD IPS Glare
1. This LCD screen has no screw holes. You need to use double-sided tape to fix it to the LCD back cover.
2. Removing the old LCD screen is difficult for the notebook. If the operation is not correct, it is easy to damage the LCD bezel, so I suggest you buy a new LCD bezel.
3. When removing the LCD bezel, you need to use a heat gun to heat the LCD bezel.
4. If you don't have a heat gun and double-sided tape, I suggest you go to the repair shop to replace the LCD screen.
I got a screen with a number 00NY680 on the back, the screen work fine on my ThinkPad X1 Carbon laptop. Thank you! myfixguide.com