Display device and method for manufacturing the display device
A display device and a method for manufacturing the same, for discharging static electricity generated in the manufacturing process of a display device using a mechanical shutter and thus preventing the mechanical shutter from being deformed by the static electricity are provided. The display device includes a TFT substrate having thin film transistors thereon respectively provided with a plurality of mechanical shutters located in a matrix and also having terminals thereon for supplying a signal to the thin film transistors from outside; and a counter substrate joined with the TFT substrate. Along at least one of an edge of the TFT substrate and an edge of the counter substrate, an injection opening for injecting an insulating liquid into an area between the TFT substrate and the counter substrate and a ground electrode for covering at least a part of an inner surface of the injection opening are provided.
1. A display device, comprising:
a first substrate having thin film transistors thereon respectively provided with a plurality of mechanical shutters located in a matrix;
a counter substrate joined with the first substrate via a sealing member, wherein the sealing member includes, along at least one of an edge of the first substrate and a corresponding edge of the counter substrate, an injection opening for injecting an insulating liquid into an area between the first substrate and the counter substrate;
terminals disposed on the first substrate for supplying a signal to the thin film transistors from outside the sealing member; and
a ground electrode covering at least a part of an inner surface of the injection opening.
2. A display device according to claim 1 , wherein the ground electrode is located to be conductive to an external ground electrode.
3. A display device according to claim 1 , wherein:
the ground electrode is connectable to an injection section for injecting the insulating liquid to the area between the first substrate and the counter substrate or to a securing section for securing the first substrate and the counter substrate; and
a connection part for connecting the ground electrode and the injection section or the securing section is kept at a ground potential.
4. A method for manufacturing a display device, comprising:
forming, on a first substrate, thin film transistors and terminals for supplying a signal to the thin film transistors from outside a sealing member coupling the first substrate to a counter substrate;
forming, on the first substrate having the thin film transistors and the terminals formed thereon, a passivation film for covering the thin film transistors and the terminals;
forming, on the passivation film, a plurality of mechanical shutters located in a matrix and provided respectively in correspondence with the thin film transistors;
forming a ground electrode for covering at least a part of an injection opening in the sealing member for injecting an insulating liquid into an area between the TFT substrate and the counter substrate, the ground electrode being formed along at least one of an edge of the first substrate and an edge of the counter substrate; and
joining together the counter substrate to the first substrate with the sealing member.
5. A method for manufacturing a display device according to claim 4 , wherein the ground electrode is located to be conductive to an external ground electrode.
6. A method for manufacturing a display device according to claim 4 , wherein:
the ground electrode is connectable to an injection section for injecting the insulating liquid to the area between the first substrate and the counter substrate or to a securing section for securing the first substrate and the counter substrate; and
a connection part for connecting the ground electrode and the injection section or the securing section is kept at a ground potential.
7. A method for manufacturing a display device according to claim 4 , wherein the ground electrode is formed in an area including the injection opening when wiring of the first substrate and the counter substrate are formed.