US Patent Application 18203962. COVER FILM AND IMAGE DISPLAY DEVICE INCLUDING THE SAME simplified abstract

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COVER FILM AND IMAGE DISPLAY DEVICE INCLUDING THE SAME

Organization Name

LG DISPLAY CO., LTD.

Inventor(s)

Harumi Okuno of Kanagawa (JP)

Takayuki Ota of Kanagawa (JP)

Masafumi Sawada of Kyoto (JP)

Atsushi Wakatsuki of Kyoto (JP)

Yutaka Kamada of Hyogo (JP)

COVER FILM AND IMAGE DISPLAY DEVICE INCLUDING THE SAME - A simplified explanation of the abstract

This abstract first appeared for US patent application 18203962 titled 'COVER FILM AND IMAGE DISPLAY DEVICE INCLUDING THE SAME

Simplified Explanation

The patent application describes a cover film consisting of a base material layer and a surface layer chemically bonded to it.

  • The surface layer contains a polyurethane resin X1, which includes urethane and urea units as well as a polyorganosiloxane group in its structure.
  • The polyurethane resin X1 is formed by reacting a non-yellowing-type isocyanate component B1 with an active hydrogen component A1, which includes a compound a1-1.
  • The base material layer consists of a polyurethane resin X2, which contains a urethane bond in its structure.
  • The polyurethane resin X2 is formed by reacting a non-yellowing-type isocyanate component B2 with an active hydrogen component A2 that does not include the compound a1-1.
  • The base material layer has a specific crosslinking point concentration and elastic recovery rate.


Original Abstract Submitted

Cover film has a base material layer and a surface layer chemically bonded to the base material layer, where the surface layer includes a polyurethane resin X1 containing urethane and urea units and a polyorganosiloxane group in the molecule, the polyurethane resin X1 is a reaction product of a non-yellowing-type isocyanate component B1 with an active hydrogen component A1 including a compound a1-1, the base material layer includes a polyurethane resin X2 having a urethane bond in the molecule, and the polyurethane resin X2 is a reaction product of a non-yellowing-type isocyanate component B2 with an active hydrogen component A2 which does not include the compound a1-1, and has a certain crosslinking point concentration and also has a certain elastic recovery rate.

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