Lenovo ThinkVision LT1423p 13.3-inch IPS LED Backlit LCD Wireless Touch Monitor with pen - Manual (Page 12)

3. Using the convertible simple cover.
A simple cover ships with the monitor for added protection when storing and carrying.
The case can also be used as a monitor stand as illustrated below.
If simple cover is attached:
1) Simple cover for storing.
2) Simple cover as stand.
a. Take out monitor from simple cover and raise stand leg.
b. Put monitor in front of stand leg .
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L T1423pwC Wide Touch Monitor User’s Guide