Liquid crystal display
A liquid crystal display (LCD) includes a thin film transistor positioned on a lower substrate; a plurality of color filters positioned on the thin film transistor and aligned to be spaced apart from each other; an insulation layer positioned on the plurality of color filters; a light-blocking layer positioned on the insulation layer; a transparent layer positioned on the light-blocking layer and having a convex shape; an upper substrate facing the lower substrate; and a liquid crystal layer interposed between the lower substrate and the upper substrate, wherein the light-blocking layer includes an organic black pigment, and the transparent layer having the convex shape has a different shape from the light-blocking layer.
1. A liquid crystal display (LCD) comprising:
a thin film transistor positioned on a lower substrate;
a plurality of color filters positioned on the thin film transistor and aligned to be spaced apart from each other;
an insulation layer positioned on the plurality of color filters;
a light-blocking layer positioned on the insulation layer;
a transparent layer positioned on the light-blocking layer and having a convex shape;
an upper substrate facing the lower substrate; and
a liquid crystal layer interposed between the lower substrate and the upper substrate, wherein the light-blocking layer includes an organic black pigment,
the transparent layer having the convex shape has a different shape from the light blocking layer and covers a whole or a part of a front surface of the light-blocking layer, wherein when the transparent layer covers a whole front surface of the light-blocking layer, the transparent layer has a different cross-sectional shape from the light blocking layer, and
the light-blocking layer and transparent layer are manufactured by:
coating a light-blocking layer composition and drying the same,
coating a transparent layer composition comprising a binder resin, a reactive unsaturated compound, a photopolymerization initiator, a black pigment and a solvent on the dried light blocking layer composition and drying the same, and
simultaneously exposing and developing the dried light-blocking layer composition and transparent layer composition.
2. The liquid crystal display of claim 1 , wherein the organic black pigment comprises a compound represented by the following Chemical Formula 1:
wherein, in the above Chemical Formula 1,
R 11 to R 20 are the same or different and are each independently hydrogen or substituted or unsubstituted C1 to C10 alkyl.
3. The liquid crystal display of claim 1 , wherein the transparent layer comprises a main transparent layer and an auxiliary transparent layer.
4. The liquid crystal display of claim 3 , wherein the main transparent layer has a thicker thickness than that of the auxiliary transparent layer.
5. The liquid crystal display of claim 3 , wherein the main transparent layer supports the gap between the upper substrate and the lower substrate.
6. The liquid crystal display of claim 1 , further comprising a pixel electrode between the insulation layer and the light-blocking layer.
7. The liquid crystal display of claim 1 , further comprising a common electrode interposed between the upper substrate and the liquid crystal layer.
8. The liquid crystal display of claim 1 , further comprising a common electrode directly on the lower substrate.
9. The liquid crystal display of claim 1 , wherein the light-blocking layer has a larger optical density than that of the transparent layer by about 1.0 or greater.
10. The liquid crystal display of claim 1 , wherein the light-blocking layer composition comprises a binder resin, a reactive unsaturated compound, a photopolymerization initiator, the organic black pigment, and a solvent.
11. The liquid crystal display of claim 10 , wherein the light-blocking layer composition comprises about 1 wt % to about 30 wt % of the binder resin; about 1 wt % to about 20 wt % of the reactive unsaturated compound; about 0.05 wt % to about 5 wt % of the photopolymerization initiator; about 1 wt % to about 30 wt % of the organic black pigment, and a balance amount of the solvent.
12. The liquid crystal display of claim 1 , wherein the transparent layer composition comprises about 3 wt % to about 70 wt % of the binder resin; about 2 wt % to about 40 wt % of the reactive unsaturated compound; about 0.1 wt % to about 5 wt % of the photopolymerization initiator; and a balance amount of the solvent.
13. The liquid crystal display of claim 1 , wherein the transparent layer having the convex shape covers a part of a front surface of the light-blocking layer.
14. The liquid crystal display of claim 13 , wherein the transparent layer having the convex shape covers a part of a front surface of the light-blocking layer and has a different cross-sectional shape than the light-blocking layer.
15. The liquid crystal display of claim 1 , wherein the transparent layer having the convex shape covers a whole of a front surface of the light-blocking layer.
16. The liquid crystal display of claim 15 , wherein the transparent layer having the convex shape covers a whole of a front surface of the light-blocking layer and includes at least a portion with a height that is different from the height of at least another portion relative to the front surface of the light-blocking layer.
17. A liquid crystal display (LCD) comprising:
a thin film transistor positioned on a lower substrate;
a plurality of color filters positioned on the thin film transistor and aligned to be spaced apart from each other;
an insulation layer positioned on the plurality of color filters;
a light-blocking layer positioned on the insulation layer;
a transparent layer positioned on the light-blocking layer and having a convex shape;
an upper substrate facing the lower substrate; and
a liquid crystal layer interposed between the lower substrate and the upper substrate,
wherein the light-blocking layer includes an organic black pigment,
the transparent layer includes a black pigment,
the transparent layer having the convex shape has a different cross-sectional shape from the light blocking layer, and
the light-blocking layer and transparent layer are manufactured by:
coating a light-blocking layer composition and drying the same,
coating a transparent layer composition comprising a binder resin, a reactive unsaturated compound, a photopolymerization initiator, a black pigment and a solvent on the dried light blocking layer composition and drying the same, and
simultaneously exposing and developing the dried light-blocking layer composition and transparent layer composition.
18. The liquid crystal display of claim 17 , wherein the transparent layer having the convex shape covers a part of a front surface of the light-blocking layer.
19. The liquid crystal display of claim 17 , wherein the transparent layer having the convex shape covers a whole of a front surface of the light-blocking layer.