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公开(公告)号：JP2007012370A
公开(公告)日：2007-01-18
申请号：JP2005190084
申请日：2005-06-29
Inventor： KASHIWABARA MITSUHIRO , YAMADA JIRO
Abstract: PROBLEM TO BE SOLVED: To provide an organic luminescent element capable of improving light-emitting performance as much as possible. SOLUTION: In blue organic EL elements 16B, green organic EL elements 16G and red organic EL elements 16R, an organic layer 163 formed between lower electrode layers 161B, 161G and 161R and an upper electrode layer 164 has a laminated structure where a plurality of luminescent layers are laminated. In particular, (1) a distance (first optical distance) between each reflecting surface of the lower electrode layers 161B, 161G and 161R and a light-emitting surface of each luminescent layer out of the plurality of luminescent layers satisfies a predetermined expression; (2) a distance (second optical distance) between each reflecting surface of the lower electrode layers 161B, 161G and 161R and an interfacial surface between reflecting surface specifying surfaces 165 and 166 satisfies another predetermined expression 2; and (3) the distances between the lower electrode layers 161B, 161G and 161R and the organic layer 163 in the green organic EL elements 16G are larger than those in the blue organic EL elements 16B and the red organic EL elements 16R. COPYRIGHT: (C)2007,JPO&INPIT
Abstract translation: 要解决的问题：提供尽可能提高发光性能的有机发光元件。 解决方案：在蓝色有机EL元件16B中，绿色有机EL元件16G和红色有机EL元件16R，形成在下电极层161B，161G和161R与上电极层164之间的有机层163具有层叠结构，其中 层叠多个发光层。 特别地，（1）下部电极层161B，161G，161R的各反射面与多个发光层的各发光层的发光面的距离（第一光学距离）满足规定的表达式， （2）下电极层161B，161G，161R的各反射面与反射面规定面165,166的界面之间的距离（第二光学距离）满足另一规定的表达式2。 和（3）绿色有机EL元件16G中的下电极层161B，161G和161R与有机层163之间的距离大于蓝色有机EL元件16B和红色有机EL元件16R中的距离。 版权所有（C）2007，JPO＆INPIT
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Patent Agency Ranking
公开(公告)号：JP2007012369A
公开(公告)日：2007-01-18
申请号：JP2005190083
申请日：2005-06-29
Inventor： KASHIWABARA MITSUHIRO , YAMADA JIRO
Abstract: PROBLEM TO BE SOLVED: To provide an organic luminescent element capable of improving luminescent performance as much as possible. SOLUTION: An organic EL element 100 has a structure where an organic layer 20 is formed between a lower electrode layer 10 having light reflectivity and an upper electrode layer 30 having light transparency. The organic layer 20 has a laminated structure where a plurality of luminescent layers (blue luminescent layers 22 and 24, a green luminescent layer 26 and a red luminescent layer 28) are laminated. A distance (optical distance) between the lower electrode layer 10 and each luminescent layer satisfies a relational expression of L=(m-Φ/2π)λ/2, where L is the distance (optical distance) between the lower electrode layer 10 and each luminescent layer; m is an order (0 or an integer); Φ is a phase shift generated when light generated in each luminescent layer is reflected on the lower electrode layer 10; and λ is a peak wavelength of a spectrum when light generated in each luminescent layer is emitted from the organic EL element 100. COPYRIGHT: (C)2007,JPO&INPIT
Abstract translation: 要解决的问题：提供能够尽可能地改善发光性能的有机发光元件。 解决方案：有机EL元件100具有在具有光反射性的下电极层10和具有透光性的上电极层30之间形成有机层20的结构。 有机层20具有叠层多层发光层（蓝色发光层22,24，绿色发光层26和红色发光层28）的叠层结构。 下电极层10和发光层之间的距离（光学距离）满足关系式L =（m-Φ/2π）λ/ 2，其中L是下电极层10和 每个发光层; m是一个顺序（0或整数）; Φ是在每个发光层中产生的光在下电极层10上反射时产生的相移; 并且λ是当从有机EL元件100发射在每个发光层中产生的光时的光谱的峰值波长。版权所有（C）2007，JPO＆INPIT
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公开(公告)号：JP2005100921A
公开(公告)日：2005-04-14
申请号：JP2004019247
申请日：2004-01-28
Inventor： KASHIWABARA MITSUHIRO
CPC classification number: H05B33/14 , C09K11/06 , C09K2211/1007 , C09K2211/1011 , C09K2211/1014 , C09K2211/186 , H01L51/005 , H01L51/0059 , H01L51/006 , H01L51/0064 , H01L51/0071 , H01L51/0081 , H01L51/5044 , H01L51/5096 , H05B33/26
Abstract: PROBLEM TO BE SOLVED: To provide an organic EL element which provides in high brightness the emitted light components of three colors, red, green, and blue, which are well balanced and suitable for a full-color display.
SOLUTION: Between a positive electrode 3 and a negative electrode 5, a red light emitting layer 11, a green light emitting layer 12, and a blue light emitting layer 13 in this order are laminated, and an intermediate layer 'a' composed of an organic material is provided between the green light emitting layer 12 and the blue light emitting layer 13. The energy gap between HOMO-LUMO of the intermediate layer 'a' is larger than that of a blue light emitting material composing the blue light emitting layer 12. The intermediate layer 'a' has a positive hole transportability. When a display is constructed by using the organic EL element 1, a color filter is installed on the light taking-out side.
COPYRIGHT: (C)2005,JPO&NCIPIAbstract translation: 要解决的问题：提供一种有机EL元件，其高亮度地提供红，绿和蓝三种颜色的发光组分，其均衡并且适合于全色显示。 解决方案：在正极3和负极5之间层叠有红色发光层11，绿色发光层12和蓝色发光层13，中间层a' 在绿色发光层12和蓝色发光层13之间设置有机材料。中间层a的HOMO-LUMO之间的能隙大于构成蓝色光的蓝色发光材料的能隙 中间层a具有空穴传输性。 当通过使用有机EL元件1构造显示器时，在取出光侧安装滤色器。 版权所有（C）2005，JPO＆NCIPI
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公开(公告)号：JP2005011806A
公开(公告)日：2005-01-13
申请号：JP2004159060
申请日：2004-05-28
Inventor： SAKAMOTO YUKISAKU , ICHIMURA MARI , KASHIWABARA MITSUHIRO , TAMURA SHINICHIRO
CPC classification number: Y02B20/181
Abstract: PROBLEM TO BE SOLVED: To provide an electroluminescent device capable of producing white light by using an organic luminescent material for emitting white light, which is highly reliable and excellent in productivity, while having a simple layer structure. SOLUTION: The organic electroluminescent device uses a compound expressed by formula 1, as the organic electroluminescent material. In formula 1, R1-R26 are preferably substituents arbitrarily selected from the group consisting of a hydrogen atom, alkyl groups, aromatic hydrocarbon groups, and aromatic heterocycle groups, and n1 represents a number from 1 to 3. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract translation: 要解决的问题：提供一种能够通过使用发光白色的有机发光材料产生白光的电致发光器件，其具有高可靠性和优异的生产率，同时具有简单的层结构。 解决方案：有机电致发光器件使用由式1表示的化合物作为有机电致发光材料。 在式1中，R 1 -R 26优选是任选地选自氢原子，烷基，芳族烃基和芳香族杂环基的取代基，n1表示1〜3的数。COPYRIGHT：（C ）2005年，日本特许厅和NCIPI
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公开(公告)号：JP2004192842A
公开(公告)日：2004-07-08
申请号：JP2002356370
申请日：2002-12-09
Inventor： KAGAMI KEIICHI , KASHIWABARA MITSUHIRO
Abstract: PROBLEM TO BE SOLVED: To provide a display device capable of restraining the degradation of luminous efficiency and luminous intensity of an organic electroluminescent element.
SOLUTION: Of the display device with an organic layer 14 having a luminous layer 14b consisting of a polymer system organic electroluminescent material interposed between a positive electrode 13 and a negative electrode 15, provided with an electron injection conductive layer 15a with the negative electrode 15 fitted at the side of the organic layer 14 and a protective conductive layer 15b fitted on the electron injection conductive layer 15a, the electron injection conductive layer 15a is formed of an oxide of at least either alkali metal or alkali earth metal.
COPYRIGHT: (C)2004,JPO&NCIPI-
公开(公告)号：JP2004146221A
公开(公告)日：2004-05-20
申请号：JP2002310521
申请日：2002-10-25
Inventor： KASHIWABARA MITSUHIRO , KIJIMA YASUNORI , SASAOKA TATSUYA
Abstract: PROBLEM TO BE SOLVED: To provide an organic electroluminescent element in which color purity is high, and which is highly reliable in the long term.
SOLUTION: This is the organic EL element (organic electroluminescent element) 1 in which an organic layer 4 is pinched between the lower part electrode (positive electrode) 3 and the upper part electrode (negative electrode) 5, and the organic layer 4 is composed by laminating a positive hole transport layer 401, both charge transportation nature light-emitting layers 402, an electronic transportation nature light-emitting layer 403, and an electron transport layer 404 in this order from the positive electrode side. An energy gap of the luminescent center of the both charge transportation nature light-emitting layers 402 and the electronic transportation nature light-emitting layer 403 is larger than the energy gap of an electronic transportation nature material constituting the electron transport layer 404.
COPYRIGHT: (C)2004,JPO
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