The glass panel for LG and Sears-Kenmore ovens, identified by part number 4890W1N005Q, serves as an internal transparent heat barrier within the oven door.
Prior to starting any repair work, verify that the oven has cooled completely. Protect your hands by wearing work gloves. Given the oven door's substantial weight, enlisting the help of another person for removal from the oven frame can reduce the risk of accidental injury.