Electro optical device and electronic apparatus
View Patent ↗There is provided an electro optical device including an electro optical panel formed by sticking a first substrate and a second substrate together, and a flexible wiring substrate connected to the electro optical panel. The first substrate includes a extension portion flaring from the second substrate, the wiring substrate includes a base material having flexibility and a conductive pattern provided on the base material, the wiring substrate is connected to the extension portion of the first substrate by using an adhesive agent, the wiring substrate includes a wide width portion connected to the extension portion and a narrow width portion continuing to the wide width portion and extending outwardly from an edge side of the extension portion in the flaring direction, and an edge side of the wide width portion at the narrow width portion side is matched to the position of the edge side of the extension portion in the flaring direction or is positioned inside of the edge side of the extension portion in the flaring direction.
1. An electro optical device comprising: an electro optical panel formed by sticking a first substrate and a second substrate together; and a flexible wiring substrate connected to the electro optical panel; wherein
the first substrate includes an extension portion flaring from the second substrate,
the wiring substrate includes a base material having flexibility and a conductive pattern provided on the base material,
the wiring substrate is connected to the extension portion of the first substrate by using an adhesive agent,
the wiring substrate includes a wide width portion connected to the extension portion and a narrow width portion continuing to the wide width portion and extending outwardly from an edge side of the extension portion in the flaring direction,
an edge side of the wide width portion at the narrow width portion side is matched to the position of the edge side of the extension portion in the flaring direction or is positioned inside of the edge side of the extension portion in the flaring direction; and
if the length of the wide width portion projecting from a side of the narrow width portion as for the direction perpendicular to the extending direction of the narrow width portion is La, the relation of
La≧1.5 mm
is satisfied.
2. The electro optical device according to claim 1 , wherein a distal end of the wide width portion extends to the position matching to a side of the extension portion of the first substrate.
3. The electro optical device according to claim 1 , wherein the wide width portion is adhered to the extension portion to enhance the impact strength resistance and bending strength resistance of the extension portion.
4. The electro optical device according to claim 1 , wherein a width of the narrow width portion of the wiring substrate in the direction perpendicular to the extending direction of the narrow width portion and the width of the whole area of the narrow width portion along the extending direction is the same as or narrower than the width of the narrow wide portion at the border between the wide width portion and the narrow width portion.
5. The electro optical device according to claim 1 , wherein a test terminal used for testing of the electro optical panel is provided on the extension portion of the first substrate, and the test terminal is covered by the wide width portion of the wiring substrate and the adhesive agent.
6. The electro optical device according to claim 1 , wherein the wiring substrate is connected on the surface of the extension portion of the first substrate at a side of the second substrate, and the combined thickness of the wiring substrate and the adhesive agent is matched to the thickness of the second substrate.
7. An electronic apparatus comprising the electro optical device according to claim 1 .
8. An electro optical device comprising: an electro optical panel formed by sticking a first substrate and a second substrate together; and a flexible wiring substrate connected to the electro optical panel; wherein
the first substrate includes an extension portion flaring from the second substrate,
the wiring substrate includes a base material having flexibility and a conductive pattern provided on the base material,
the wiring substrate is connected to the extension portion of the first substrate by using an adhesive agent,
the wiring substrate includes a wide width portion connected to the extension portion and a narrow width portion continuing to the wide width portion and extending outwardly from an edge side of the extension portion in the flaring direction,
an edge side of the wide width portion at the narrow width portion side is matched to the position of the edge side of the extension portion in the flaring direction or is positioned inside of the edge side of the extension portion in the flaring direction, and
a width of the narrow width portion of the wiring substrate in the direction perpendicular to the extending direction of the narrow width portion and the width of the whole area of the narrow width portion along the extending direction is the same as or narrower than the width of the narrow width portion at the border between the wide width portion and the narrow width portion.
9. The electro optical device according to claim 8 , wherein a shape of a corner of the border between the wide width portion and the narrow width portion of the wiring substrate is a curve shape.
10. The electro optical device according to claim 8 , wherein the wiring substrate is connected on the surface of the extension portion of the first substrate at a side of the second substrate, and the combined thickness of the wiring substrate and the adhesive agent is matched to the thickness of the second substrate.