Double-Sided Adhesive Having Light-Absorbing Properties for Producing and/or Gluing Lc-Displays
An adhesive strip or tape for producing or gluing optical liquid crystal data displays (LCD's) is disclosed. The adhesive tape comprises an upper side and a lower side; a carrier film having an upper side and a lower side, wherein a laminate made from a dye-free adhesive layer and a colored adhesive layer applied to one side of the carrier film; and at least one external adhesive layer applied on the upper and lower sides of the adhesive tape.
1 . A pressure-sensitive adhesive tape for the production or adhesive bonding of optical liquid-crystal displays (LCDs), comprising a top side and a bottom side, a carrier film having a carrier film top side and a carrier film bottom side, and at least one external pressure-sensitive adhesive layer provided on both the top and bottom side of the adhesive tape, wherein one side of the film further comprises a laminate of a dye-free pressure sensitive adhesive layer and a colored pressure sensitive adhesive layer.
2 . The pressure-sensitive adhesive tape of claim 1 wherein the dye-free pressure-sensitive adhesive layer is transparent.
3 . The pressure-sensitive adhesive tape of claim 1 wherein the colored pressure-sensitive adhesive layer is black.
4 . The pressure-sensitive adhesive tape of claim 1 wherein the colored pressure-sensitive adhesive layer is provided between the carrier film and the dye-free pressure-sensitive adhesive layer.
5 . The pressure-sensitive adhesive tape of claim 1 wherein the dye-free pressure-sensitive adhesive layer is the outer pressure-sensitive adhesive layer on the pressure-sensitive adhesive tape side.
6 . The pressure-sensitive adhesive of a claim 1 wherein a layer sequence is comprised as follows: transparent pressure-sensitive adhesive-colored pressure-sensitive adhesive-carrier film-transparent pressure-sensitive adhesive.
7 . The pressure-sensitive adhesive tape of claim 6 wherein the layer sequence is comprises as follows: transparent pressure-sensitive adhesive-colored pressure-sensitive adhesive-carrier film-colored pressure-sensitive adhesive-transparent pressure-sensitive adhesive.
8 . The pressure-sensitive adhesive tape of claim 1 wherein the carrier film has a thickness between 5 and 250 μm.
9 . The pressure-sensitive adhesive tape of claim 1 wherein at least one laminate has a layer thickness of not more than 140 μm.
10 . A method for producing or adhesively bonding optical liquid-crystal displays (LCDs) comprising providing a pressure sensitive adhesive tape according to claim 1 to an optical liquid-crystal display.
11 . The method of claim 10 wherein LCD glasses are bonded.
12 . A liquid-crystal display device comprising a pressure-sensitive adhesive tape of claim 1 .
13 . The pressure sensitive adhesive tape of claim 8 wherein the carrier film has a thickness between about 8 and 50 μm.
14 . The pressure sensitive adhesive tape of claim 13 wherein the carrier film has a thickness of about 12 μm.
15 . The pressure sensitive adhesive tape of claim 9 wherein the dye free layers have a thickness of between about 5-135 μm and the filler-containing layers have a thickness of between about 5-135 μm.