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Development of Highly Performed Organic Display Devices

高性能有机显示器件的开发

基本信息

批准号：
08555236
负责人：
SHIROTA Yasuhiko
金额：
$ 5.7万
依托单位：
Osaka University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (A)
财政年份：
1996
资助国家：
日本
起止时间：
1996 至 1997
项目状态：
已结题

项目摘要

For the purpose of developing organic display devices with high performances, we have investigated the synthesis and electrochromic properties of new polymers containing pendant oligothiophenes, and fabrication and performances of organic electroluminescent (EL) devices using novel amorphous molecular materials.We have synthesized new vinyl and methacrylate homopolymers containing pendant oligothiophenes with well-defined structures and new methacrylate copolymers containing pendant terthiophene and oligoethyleneoxide moieties. These polymers were found to constitute a novel class of potential electrochromic materials, undergoing a reversible clear color change on electrochemical doping and dedoping. It was also found that the response times for coloration and decoloration improve for the methacrylate copolymers are than for the methacrylate homopolymer.We have designed and synthesized novel pi-electron starburst molecules with high glass-transition temperatures, and developed thermally stable organic EL devices using these novel amorphous molecular materials. In addition, we have developed a novel blue-emitting meterial, tri(p-terphenyl-4-yl) amine, and blue-emitting organic EL devices. We found that the emission color can be tuned by using exciplex formation for a fixed electron-transport material in combination with holetransport materials with varying ionization potentials. We have designed and synthesized a novel family of pi-conjugated molecules containing an oligothiophene moiety and found that the electroluminescence color can be controlled by varying the conjugation length of the oligothiophene moiety.

为了开发高性能的有机显示器件，我们研究了含噻吩低聚物的新型聚合物的合成及其电致变色性能，我们合成了新型的乙烯基和甲基丙烯酸酯均聚物，其中含有侧基噻吩，定义的结构和含有三噻吩侧基和低聚环氧乙烷部分的新的甲基丙烯酸酯共聚物。这些聚合物被发现构成一类新的潜在的电致变色材料，经历可逆的清晰的颜色变化的电化学掺杂和脱掺杂。我们设计并合成了具有高玻璃化转变温度的新型π电子星爆型分子，并利用这些新型非晶态分子材料开发了热稳定的有机电致发光器件。此外，我们还开发了一种新的蓝光材料三（对三联苯-4-基）胺，并研制了蓝光有机电致发光器件。我们发现，发射颜色可以通过使用激基复合物形成的固定的电子传输材料与空穴传输材料与不同的电离电位相结合。我们已经设计并合成了一个新的家庭的π共轭分子含有一个oligophthiophene部分，并发现，电致发光的颜色可以通过改变oligophthiophene部分的共轭长度来控制。