The present disclosure relates to a liquid crystal display device including a first substrate including a first base substrate and a first alignment layer provided on the first base substrate, a second substrate including a second base substrate facing the first base substrate and a second alignment layer provided on the second base substrate. A first housing part or housing front has an opening exposing the display surface of the LCD panel. An air passage is defined between the gas canister accommodating section and the gas canister accommodated therein. Each item has a number of features and each of the features maps to a distinct matrix node weight. A method comprising communicating an open shortest path first link state advertisement message comprising a TLV with at least one sub-TLV to a GMPLS control plane controller, wherein the TLV comprises a Node Attribute TLV, a Link Set TLV, or both, and wherein the TLV further comprises at least one sub-TLV indicating RWA information.