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US 2011/0253941 A1Published application
Dispersant having multifunctional head and phosphor paste composition comprising the same
AssigneeSamsung Electronics Co., Ltd.
InventorsSeon Mi YOON, Hyeon Jin SHIN, Jae Young CHOI, Seong Jae CHOI, Bum Jae LEE, Ungyu PAIK, Sangkyu LEE, Jung Hwan LEE
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Abstract
Disclosed is a dispersant having a multifunctional head, and a phosphor paste composition comprising the dispersant. The dispersant has a multifunctional head that comprises an acidic group, a basic group and an aromatic group, thereby enhancing an affinity for the surface of phosphor particles and improving dispersibility.
Claims9
A fluorescent film for a display device produced from a phosphor paste composition, the phosphor paste composition comprising:
- a dispersant represented by Formula 1 or 2 below;
- a binder solution of an organic binder in a solvent;
- and
- a phosphor
- wherein
- A is an aromatic group, B is an acidic group and C is a basic group,
- a, b and c are independently an integer from 0 to about 10 with the proviso that two or more of a, b and c are not simultaneously zero,
- n is an integer of about 1 to about 15, and
- D is hydrogen, alkyl, polyester or polyether;
- wherein
- A is an aromatic group, B is an acidic group and C is a basic group,
- a, b and c are independently an integer from 0 to about 10 with the proviso that two or more of a, b and c are not simultaneously zero,
- n is an integer of about 1 to about 15, and
- D is hydrogen, alkyl, polyester or polyether.
11 more elements
Dependencies are inferred from the claim text.