Display panel substrate assembly and an apparatus and method for forming a display panel substrate assembly

An apparatus for forming a display panel substrate assembly, the substrate assembly comprising a first substrate and a second substrate, at least one of the first substrate and the second substrate being optically clear, the apparatus comprising:

• a printing device for applying a non-sag adhesive composition onto a surface of the first substrate, the non-sag adhesive composition being of a type which is optically clear after curing;
• a chamber for the non-sag adhesive composition to be brought into contact with a surface of the second substrate therein at a pressure less than or equal to 5000 pascals;
• and
• a curing device for curing the non-sag adhesive composition to yield an adhesive layer.

A display panel substrate assembly, the display panel substrate assembly comprising:

• a first substrate;
• and
• a second substrate;
• wherein at least one of the first substrate and the second substrate is optically clear;
• wherein the first substrate and the second substrate are adhered together with a non-sag adhesive composition, the non-sag adhesive composition having been screen-printed onto the first substrate, and being of a type which is optically clear after curing,
• wherein the non-sag adhesive composition was brought into contact with the second substrate in an environment at a pressure less than or equal to 5000 pascals;
• and
• wherein the non-sag adhesive composition was cured to yield an adhesive layer.