Resin composition and display unit
AssigneeDexerials Corporation
InventorsYoshihisa Shinya, Yusuke Kamata
Life of this patent
Estimating the term…
Abstract
A display unit that includes an image display part and a light-transmitting protective part arranged on the image display part. A cured resin layer is arranged between the display part and the protective part. The cured resin layer can have a transmittance of 90% or higher in the visible range and a storage modulus at 25° C. of 1×107 Pa or less. The cured resin layer can be formed from a resin composition that has a cure shrinkage of 5% or less.
Claims5
A method of producing an image display unit comprising an image display part, a transparent protective part arranged on the image display part, and a cured resin layer arranged between the image display part and the protective part, the method comprising:
- completely filling a gap between the image display part and the transparent protective part with a resin composition including a photo polymerization initiator that can cure in the visible and ultraviolet ranges, and
- forming the cured resin layer by irradiating the resin composition with ultraviolet rays from the protective part;
- wherein the cured resin layer has:
- (a) a cure ratio of 90% or more;
- (b) a storage modulus at 25° C. of 4.0×103 Pa to 1.0×106 Pa, where the storage modulus value is achieved while the cure ratio becomes 90% or more so as to suppress effects of an internal stress that builds up within the resin composition as the resin composition cures;
- and
- (c) a transmittance of 90% or more in the visible range.
Dependencies are inferred from the claim text.