Electrophoretic display device, adhesive and preparation method of adhesive

Abstract

The invention provides an electrophoretic display device, adhesive and a preparation method of the adhesive; the adhesive comprises aliphatic diisocyanate, aromatic diisocyanate, a polyester diol, a polyether diol, a chain extender, a graft compound, and an amine chain extender; the graft compound comprises latent curing or slow curing reaction groups. The graft compound containing the latent curing or slow curing reaction groups is introduced to the adhesive according to the embodiment, heat resistance and ageing resistance of the adhesive are enhanced, and the electrophoretic display device using the adhesive has good heat resistance and aging resistance.

Description

technical field

[0001] The invention belongs to the field of adhesives for electronic appliances, and in particular relates to an electrophoretic display device, an adhesive and a preparation method thereof. Background technique

[0002] In the electrophoretic display device, it is necessary to use an adhesive to connect the electrophoretic display layer and the driving backplane, and the adhesive is laminated between the electrophoretic display layer and the driving backplane to form an adhesive layer. This kind of adhesive needs to have good electrical conductivity and good bonding performance, so as not to fall off when the environment changes, causing insufficient or no driving of the electrophoretic display layer. In order to meet the needs of different use environments, the adhesive also needs to have certain heat resistance and aging resistance.

[0003] The existing adhesive layer is an organic polymer material layer. In order to obtain better pressure-sensitive ini...

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