有机电致发光材料与器件
有机电致发光材料与器件有机电致发光材料与器件 有机电致发光器件发展及展望综述有机电致发光器件发展及展望综述 有机电致发光器件发展及展望综述有机电致发光器件发展及展望综述 中文摘要中文摘要 有机电致发光器件有机电致发光器件(organic(organic light-emittinglight-emitting device,device, OLED)OLED)目前已成目前已成 为平板信息显示领域的一个研究热点。为平板信息显示领域的一个研究热点。 OLEDOLED 具有平板化、具有平板化、 自发光、自发光、 色彩丰富、响应快、视野宽及易于实现超薄轻便等优点色彩丰富、响应快、视野宽及易于实现超薄轻便等优点, ,被认为是被认为是 未来最有可能替代液晶显示器和等离子显示器的一种新技术未来最有可能替代液晶显示器和等离子显示器的一种新技术, ,同同 时可以用做照明和背光源。但是时可以用做照明和背光源。但是, ,其制作成本高、良品率低等不足其制作成本高、良品率低等不足 有待解决。有待解决。OLEDOLED 显示技术与传统的显示技术与传统的 LCDLCD 显示方式不同,显示方式不同,无需背光无需背光 灯,采用非常薄的有机材料涂层和玻璃基板,当有电流通过时,灯,采用非常薄的有机材料涂层和玻璃基板,当有电流通过时, 这些有机材料就会发光。而且这些有机材料就会发光。而且 OLEDOLED 显示屏幕可以做得更轻更薄,显示屏幕可以做得更轻更薄, 可视角度更大,并且能够显著节省电能。可视角度更大,并且能够显著节省电能。 为了形像说明为了形像说明 OLEDOLED 构造,可以将每个构造,可以将每个 OLEDOLED 单元比做一块汉堡单元比做一块汉堡 包,包, 发光材料就是夹在中间的蔬菜。发光材料就是夹在中间的蔬菜。每个每个 OLEDOLED 的显示单元都能受的显示单元都能受 控制地产生三种不同颜色的光。控制地产生三种不同颜色的光。OLEDOLED 与与 LCDLCD 一样,一样,也有主动式和也有主动式和 被动式之分。被动方式下由行列地址选中的单元被点亮。主动方被动式之分。被动方式下由行列地址选中的单元被点亮。主动方 式下,式下,OLEDOLED 单元后有一个薄膜晶体管(单元后有一个薄膜晶体管(TFTTFT)) ,发光单元在,发光单元在 TFTTFT 驱驱 动下点亮。主动式的动下点亮。主动式的 OLEDOLED 比较省电,但被动式的比较省电,但被动式的 OLEDOLED 显示性能显示性能 更佳。更佳。 关键词关键词 有机电致发光器件有机电致发光器件 器件性能器件性能 结构优化结构优化 空穴阻挡空穴阻挡 - I -- I - Organic Light-Emitting Devices PeranceOrganic Light-Emitting Devices Perance OverviewOverview tianjiatianjia (Class0413(Class0413Grade2006Grade2006in inCollegeCollegeofof InationTechnology,JilinInationTechnology,Jilin Normal University, Jilin Siping 136000)Normal University, Jilin Siping 136000) Directive Teacher: jiang wen long(professor)Directive Teacher: jiang wen long(professor) Abstract Electroluminescent devices (organic light-emitting device,Abstract Electroluminescent devices (organic light-emitting device, OLED) flat panel ination display has become a hot topic in theOLED) flat panel ination display has become a hot topic in the field.field. OLEDOLED technologytechnology hashas a a flat,flat, self-luminous,self-luminous, richrich colors,colors, fastfast response, wide horizons and easy to implement the advantages ofresponse, wide horizons and easy to implement the advantages of ultra-thinultra-thin light,light, is is consideredconsidered thethe nextnext bestbest possiblepossible alternativealternative toto liquid crystal displays and plasma displays, a new technology whileliquid crystal displays and plasma displays, a new technology while can be used as lighting and backlight. However, its high productioncan be used as lighting and backlight. However, its high production cost, low rate of less than good product to be resolved. OLED displaycost, low rate of less than good product to be resolved. OLED display technologytechnology withwith thethe traditionaltraditional LCDLCD displaydisplay in in differentdifferent ways,ways, nono backlight,backlight, withwith a a veryvery thinthin coatingcoating ofof organicorganic materialsmaterials andand glassglass substrate, when a current is passed, these organic materials will besubstrate, when a current is passed, these organic materials will be light.light. OLEDOLED displaydisplay