| 摘要 |
Provided are an essentially lead-free black ceramic composition for a filter, a filter formed using the same, and a flat display device including the filter. The lead-free black ceramic composition may include at least one compound selected from the group consisting of B<SUB>2</SUB>O<SUB>3</SUB>, BaO, and ZnO; and at least one black pigment selected from the group consisting of TiO, CuO, NiO, MnO<SUB>2</SUB>, Cr<SUB>2</SUB>O<SUB>3 </SUB>and Fe<SUB>2</SUB>O<SUB>3</SUB>. Alternatively, the lead-free black ceramic composition may include Bi<SUB>2</SUB>O<SUB>3</SUB>; at least one compound selected from the group consisting of B<SUB>2</SUB>O<SUB>3</SUB>, SiO<SUB>2</SUB>, P<SUB>2</SUB>O<SUB>5</SUB>, Na<SUB>2</SUB>O<SUB>3</SUB>, Al<SUB>2</SUB>O<SUB>3</SUB>, BaO, ZnO and TiO<SUB>2</SUB>; and at least one black pigment selected from the group consisting of TiO, CuO, NiO, MnO<SUB>2</SUB>, Cr<SUB>2</SUB>O<SUB>3 </SUB>and Fe<SUB>2</SUB>O<SUB>3</SUB>. The lead-free black ceramic composition for a filter essentially does not contain PbO, which harms human beings and the environment. As a result, the use of the composition is not affected by regulations preventing the use of Pb. In addition, the composition can be calcined at a relatively low temperature and consume a small amount of energy.
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