Liquid crystal display device
View Patent ↗A liquid crystal display (LCD) device is disclosed. In one embodiment, the LCD device includes a first substrate including a plurality of interconnections and a protection layer covering the interconnections, a second substrate disposed opposite the first substrate, a liquid crystal (LC) layer interposed between the first and second substrates, and a sealant configured to contact the protection layer and interposed between the first and second substrates to surround and seal the LC layer. Convex portions are formed at positions between the interconnections of the protection layer and protrude convexly toward the sealant. In the above-described structure, even if light irradiated to cure the sealant is blocked by the plurality of interconnections, the light can be diffused into the entire sealant at an interface between the sealant and the protection layer.
1. A liquid crystal display (LCD) device comprising:
a first substrate, wherein a plurality of interconnections are formed on the first substrate;
a protection layer covering the interconnections;
a second substrate formed to oppose the first substrate;
a liquid crystal (LC) layer interposed between the first and second substrates; and
a sealant configured to contact the protection layer and interposed between the first and second substrates so as to surround and substantially seal the LC layer, wherein the protection layer comprises i) three or more convex portions and ii) three or more concave portions respectively directly facing the interconnections and alternatively formed with respect to the convex portions, wherein each of the convex portions protrudes convexly toward the sealant, wherein the size of each of the convex portions is greater than the size of each of the neighboring concave portions, and wherein the convex portions are evenly spaced apart.
2. The LCD device of claim 1 , wherein the sealant comprises a plurality of convex portions, and wherein the concave portions of the protection layer are formed so as to contact the convex portions of the sealant and engaged with the convex portions of the sealant.
3. The LCD device of claim 2 , wherein the concave portions are configured to guide external light to diffuse into the sealant.
4. The LCD device of claim 1 , further comprising a thin-film transistor (TFT) formed on the first substrate.
5. The LCD device of claim 1 , further comprising a color filter formed on the second substrate.
6. The LCD device of claim 1 , wherein the protection layer comprises an organic layer.
7. The LCD device of claim 1 , wherein the protection layer comprises a plurality of concave portions alternatively formed with respect to the convex portions thereof.
8. The LCD device of claim 7 , wherein the concave portions of the protection layer are formed directly below the interconnections.
9. The LCD device of claim 1 , wherein the concave portions are evenly spaced apart.
10. The LCD device of claim 1 , wherein each of the convex and concave portions is curved.
11. A liquid crystal display (LCD) device comprising:
a first substrate;
a second substrate opposing the first substrate;
a liquid crystal (LC) layer interposed between the first and second substrates;
a sealant interposed between the first and second substrates to surround and substantially seal the LC layer;
interconnections formed on at least one of the first and second substrates so as to at least partially overlap with the sealant; and
a protection layer configured to substantially cover the interconnections and having i) three or more convex portions and ii) three or more concave portions respectively directly facing the interconnections and alternatively formed with respect to the convex portions, wherein each of the convex portions protrudes convexly toward the sealant, wherein the size of each of the convex portions is greater than the size of each of the neighboring concave portions, and wherein the convex portions are evenly spaced apart.
12. The device of claim 11 , wherein the sealant comprises a plurality of convex portions, and wherein the concave portions of the protection layer are formed so as to contact the convex portions of the sealant and engaged with the convex portions of the sealant.
13. The device of claim 12 , wherein the concave portions are configured to guide external light to diffuse into the sealant.
14. The device of claim 11 , further comprising a thin-film transistor (TFT) formed on the first substrate.
15. The device of claim 11 , further comprising a color filter formed on the second substrate.
16. The device of claim 11 , wherein the protection layer includes an organic layer.
17. The device of claim 11 , wherein the protection layer comprises a plurality of concave portions alternatively formed with respect to the convex portions thereof.
18. The device of claim 17 , wherein the concave portions of the protection layer are formed directly below the interconnections.
19. The device of claim 11 , wherein the concave portions are evenly spaced apart.
20. The device of claim 11 , wherein each of the convex and concave portions is curved.