Electrophoretic display device and electronic apparatus
View Patent ↗An electrophoretic display device includes a display element including a pair of first and second substrates which are opposed to each other, and a microcapsule enclosing a display material changed in optical characteristics in response to an electric impulse, the microcapsule being sandwiched between the first and second substrates; and a protective film sealing the display element. In the display device, a first electrode is provided on the surface of the first substrate which faces the second substrate, a second electrode is provided on the surface of the second substrate which faces the first substrate, and a spacer is provided in the space between the periphery of the facing surface of the first substrate and the first electrode.
1. A device comprising:
a first substrate including a plurality of pixel electrodes disposed thereon;
a second substrate including a common electrode opposing the first substrate;
a plurality of microcapsules disposed between the pixel electrodes and the common electrode;
a spacer provided along a periphery of the first substrate that surrounds the pixel electrodes,
wherein a thickness of the spacer is in the range of 50% to 150% of a thickness of the pixel electrodes.
2. The device according to claim 1 , wherein a width of the spacer measured in a radial direction of the periphery is 2 times or more as large as a diameter of the microcapsule.
3. The device according to claim 1 , wherein a width of the spacer is 3 mm or less.
4. The device according to claim 1 , wherein the pixel electrodes include a plurality of segment electrodes arranged in a predetermined pattern, and the spacer is provided along a periphery of the outer segment electrodes among the plurality of segment electrodes.
5. The device according to claim 1 , wherein the spacer is composed of the same material as that of the pixel electrodes.
6. The device according to claim 1 , wherein the first substrate has a projecting portion projecting from an outer shape of the second substrate, a terminal portion is provided in the projecting portion, an insulating film is provided on the projecting portion except on at least the terminal portion, and the spacer is composed of the same material as that of the insulating film.
7. The device according to claim 1 , wherein a reinforcing member is provided on the surface of at least one of the first and second substrates so that the reinforcing member planarly overlaps at least a portion of the spacer.
8. The device according to claim 7 , wherein the reinforcing member includes at least one of a conductive member composed of the same material as that of the pixel electrodes provided on the first substrate and a protective member composed of the same material as that of the insulating film.
9. An electronic apparatus comprising the device according to claim 1 .