Electro-optical display, electrophoretic display, and electronic device

1. An electro-optical display comprising:

a first substrate and a second substrate opposing to each other;

a display layer disposed between the first substrate and the second substrate; and

a cover layer covering a surface of the second substrate on an opposite side of the display layer, wherein

a surface of the display layer disposed on the first substrate is a display face, and the first substrate and the cover layer are bonded with a moisture-proof resin disposed at a sealing region surrounding the display face; and

the first substrate and/or the cover layer have a groove in the surface that is in contact with the moisture-proof resin, and the groove is filled with the moisture-proof resin.

2. The electro-optical display according to claim 1 , wherein the groove is provided in a surface on the display layer side of the first substrate in the sealing region, and the depth of the groove is one half or less the thickness of the first substrate.

3. The electro-optical display according to claim 1 , wherein the groove is provided in a surface on the display layer side of the cover layer in the sealing region.

4. The electro-optical display according to claim 3 , wherein

the cover layer is composed of a laminate of a plurality of moisture-proof bases and an inorganic material layer disposed between the moisture-proof bases at least such that the inorganic material layer is in contact with the moisture-proof base on the uppermost side; and

the groove has a depth such that the groove does not pass through the inorganic material layer.

5. The electro-optical display according to claim 1 , wherein the groove is provided at the side end of the cover layer in the sealing region.

6. The electro-optical display according to claim 5 , wherein the cover layer is composed of a laminate of a plurality of moisture-proof bases and an inorganic material layer disposed between the moisture-proof bases at least such that the inorganic material layer is in contact with the moisture-proof base on the uppermost side; and

the groove is arranged nearer the display layer than the inorganic material layer.

7. The electro-optical display according to claim 1 , wherein the groove surrounds a corner of the display region.

8. The electro-optical display according to claim 1 , wherein a plurality of the grooves is provided.

9. The electro-optical display according to claim 1 , wherein a surface protection sheet is bonded to a surface of the cover layer on the opposite side with respect to the display layer.

10. An electrophoretic display comprising:

a first substrate and a second substrate opposing to each other;

an electrophoretic layer disposed between the first substrate and the second substrate; and

a cover layer covering the surface of the second substrate on an opposite side of the electrophoretic layer, wherein

a surface of the electrophoretic layer disposed on the first substrate is a display face, and the first substrate and the cover layer are bonded with a moisture-proof resin disposed at a sealing region surrounding the display face; and

the first substrate and/or the cover layer have a groove in the surface that is in contact with the moisture-proof resin, and the groove is filled with the moisture-proof resin.

11. An electronic device comprising the electro-optical display according to claim 1 or the electrophoretic display according to claim 10 .