Display device
View Patent ↗A display device includes a first substrate having a light shielding layer, and a second substrate having a first metal layer, a semiconductor layer formed over the first metal layer, and a second metal layer formed over the semiconductor layer. A sealing member fixes the first substrate and the second substrate, with a first scale mark formed over the first substrate, and a second scale mark formed over the second substrate and which forms a pair with the first scale mark. The light shielding layer has a first opening portion, and the first scale mark is arranged inside the first opening portion. The second scale mark is formed of a first part of the second metal layer, and a first part of the semiconductor layer and a first part of the first metal layer are overlapped with and extend off from the first part of the second metal.
1. A display device comprising:
a first substrate having a light shielding layer;
a second substrate having a first metal layer, a semiconductor layer formed over the first metal layer, a second metal layer formed over the semiconductor layer;
a sealing member fixing the first substrate and the second substrate;
a first scale mark formed over the first substrate; and
a second scale mark which is formed over the second substrate and forms a pair with the first scale mark;
wherein the light shielding layer has a first opening portion, and the first scale mark is arranged inside the first opening portion;
wherein the second scale mark is formed of a first part of the second metal layer, and a first part of the semiconductor layer and a first part of the first metal layer are overlapped with and extend off from the first part of the second metal; and
wherein a width of the first part of the first metal layer is wider than a width of the first opening portion.
2. A display device according to claim 1 ,
wherein the first scale mark and the second scale mark are arranged outside the sealing member.
3. A display device according to claim 2 ,
wherein the first substrate has a dam portion, and the dam portion is arranged between the sealing member and the first opening portion.
4. A display device according to claim 1 ,
wherein the first scale mark has a plurality of first scale mark lines extending in a first direction, and the second scale mark has a plurality of second scale mark lines extending in the first direction.
5. A display device according to claim 4 ,
wherein one of the first scale mark and the second scale mark is a main scale mark, and another of the first scale mark and the second scale mark is a vernier scale mark.
6. A display device according to claim 4 , further comprising:
a third scale mark formed over the first substrate, and a fourth scale mark which is formed over the second substrate and forms a pair with the third scale mark;
wherein the third scale mark has a plurality of third scale mark lines extending in the first direction, and the fourth scale mark has a plurality of fourth scale mark lines extending in the first direction.
7. A display device according to claim 6 ,
wherein the light shielding layer has a second opening portion, and the third scale mark is arranged inside the second opening portion.
8. A display device according to claim 4 , further comprising:
a third scale mark formed over the first substrate and a fourth scale mark which is formed over the second substrate and forms a pair with the third scale mark;
wherein the third scale mark has a plurality of third scale mark lines extending in a second direction which is different from the first direction, and the fourth scale mark has a plurality of fourth scale mark lines extending the second direction.
9. A display device according to claim 8 ,
wherein the light shielding layer has a second opening portion, and the third scale mark is arranged inside the second opening portion.
10. A display device according to claim 8 ,
wherein one of the first scale mark and the second scale mark is a main scale mark, and another of the first scale mark and the second scale mark is a vernier scale mark; and
wherein one of the third scale mark and the fourth scale mark is a main scale mark, and another of the third scale mark and the fourth scale mark is a vernier scale mark.
11. A display device comprising:
a first substrate having a light shielding layer;
a second substrate having a first metal layer, a colored layer formed over the first metal layer, a second metal layer formed over the colored layer;
a sealing member fixing the first substrate and the second substrate;
a first scale mark formed over the first substrate; and
a second scale mark which is formed over the second substrate and forms a pair with the first scale mark;
wherein the light shielding layer has a first opening portion, and the first scale mark is arranged inside the first opening portion;
wherein the second scale mark is formed of a first part of the second metal layer, and a first part of the colored layer and a first part of the first metal layer are overlapped with and extend off from the first part of the second metal; and
wherein a width of the first part of the first metal layer is wider than a width of the first opening portion.
12. A display device according to claim 11 ,
wherein the first scale mark and the second scale mark are arranged outside the sealing member.
13. A display device according to claim 12 ,
wherein the first substrate has a dam portion, and the dam portion is arranged between the sealing member and the first opening portion.
14. A display device according to claim 11 ,
wherein the first scale mark has a plurality of first scale mark lines extending in a first direction, and the second scale mark has a plurality of second scale mark lines extending in the first direction.
15. A display device according to claim 14 ,
wherein one of the first scale mark and the second scale mark is a main scale mark, and another of the first scale mark and the second scale mark is a vernier scale mark.
16. A display device according to claim 14 , further comprising:
a third scale mark formed over the first substrate and a fourth scale mark which is formed over the second substrate and forms a pair with the third scale mark;
wherein the third scale mark has a plurality of third scale mark lines extending in the first direction, and the fourth scale mark has a plurality of fourth scale mark lines extending in the first direction.
17. A display device according to claim 16 ,
wherein the light shielding layer has a second opening portion, and the third scale mark is arranged inside the second opening portion.
18. A display device according to claim 14 , further comprising:
a third scale mark formed over the first substrate and a fourth scale mark which is formed over the second substrate and forms a pair with the third scale mark;
wherein the third scale mark has a plurality of third scale mark lines extending in a second direction which is different from the first direction, and the fourth scale mark has a plurality of fourth scale mark lines extending the second direction.
19. A display device according to claim 18 ,
wherein the light shielding layer has a second opening portion, and the third scale mark is arranged inside the second opening portion.
20. A display device according to claim 18 ,
wherein one of the first scale mark and the second scale mark is a main scale mark, and another of the first scale mark and the second scale mark is a vernier scale mark; and
wherein one of the third scale mark and the fourth scale mark is a main scale mark, and another of the third scale mark and the fourth scale mark is a vernier scale mark.