公开(公告)号：US20030201716A1

公开(公告)日：2003-10-30

申请号：US10422380

申请日：2003-04-24

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Satoshi Seo ,  Hideaki Kuwabara

IPC: H05B033/00

CPC classification number: H01L27/3279 ,  H01L27/322 ,  H01L27/3246 ,  H01L27/3248 ,  H01L27/3251 ,  H01L27/3258 ,  H01L33/50 ,  H01L51/5218 ,  H01L51/5228 ,  H01L51/5234 ,  H01L51/5253 ,  H01L51/5262 ,  H01L51/5271 ,  H01L2251/5315

Abstract: Not all of light generated in the light emitting layer comprising the organic material are taken out in the desirable direction. For example, light emitted in the lateral direction (the direction parallel to the substrate face) is not taken out and therefore is a loss. An object of the present invention is to provide a light emitting device structured so as to increase the amount of light which is taken out in a certain direction after emitted from a light emitting element, as well as a method of manufacturing this light emitting device. In the present invention, an upper end portion of an insulating material 19 that covers an end portion of a first electrode 18 is formed to have a curved surface having a radius of curvature, a second electrode 23a is formed to have a slant face as going from its center portion toward its end portion along the curved surface. Light emitted from a light emitting layer comprising an organic material 20 that is formed on the second electrode 23a is reflected at the slant face of the second electrode 23a to increase the total amount of light taken out in the direction indicated by the arrow in FIG. 1A.

Abstract translation: 在包含有机材料的发光层中产生的光不是全部在所期望的方向上被取出。 例如，在横向（平行于基板面的方向）发出的光不被取出，因此是损失。 本发明的目的在于提供一种发光装置，其特征在于，在发光元件发光后，能够增加从特定方向取出的光量，以及制造该发光元件的方法。 在本发明中，覆盖第一电极18的端部的绝缘材料19的上端部形成为具有曲率半径的曲面，第二电极23a形成为具有倾斜面 从其中心部分沿其弯曲表面朝向其端部。 从包含形成在第二电极23a上的有机材料20的发光层发射的光在第二电极23a的倾斜面反射，以增加沿图1中箭头所示方向取出的光的总量。 1A。

公开(公告)号：US20030038594A1

公开(公告)日：2003-02-27

申请号：US10219297

申请日：2002-08-16

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Satoshi Seo ,  Keitaro Imai

IPC: H05B033/00

CPC classification number: H01L51/5092 ,  H01L27/3244 ,  Y10S428/917

Abstract: Provided is a means for improving the capability of injecting electrons from a cathode in a luminous element and solving problems about the production process thereof. In the present invention, a material having a smaller work function than a cathode material is used to form an inorganic conductive layer between the cathode and an organic compound layer. In this way, the capability of injecting electrons from the cathode can be improved. Furthermore, the film thereof can be thicker than that of a conventional cathode buffer layer formed by using an insulating material. Therefore, the film thickness can easily be controlled, and a decrease in production costs and an improvement in yield can be achieved.

公开(公告)号：US20030022019A1

公开(公告)日：2003-01-30

申请号：US10122134

申请日：2002-04-15

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Satoshi Seo ,  Atsushi Tokuda ,  Yasuo Nakamura

IPC: H05B033/14

CPC classification number: H01L51/5016 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1011 ,  C09K2211/1025 ,  C09K2211/183 ,  H01L51/0077 ,  Y10S428/917

Abstract: A chelate complex having as its central metal tungsten which is an inexpensive metal and which is a heavy atom is applied to an organic light emitting element, thereby obtaining an organic light emitting element capable of converting the triplet excitation energy into light emission. By applying the organic light emitting element using this metal complex, an inexpensive light emitting device which is bright but consumes little power can be provided as well as an electric appliance using the light emitting device.

Abstract translation: 作为其中心金属钨作为廉价金属并且是重质原子的螯合络合物被施加到有机发光元件上，从而获得能够将三重态激发能转化为发光的有机发光元件。 通过使用该金属络合物涂布有机发光元件，可以提供明亮但消耗很少功率的廉价的发光器件以及使用该发光器件的电器。

公开(公告)号：US20020028349A1

公开(公告)日：2002-03-07

申请号：US09934002

申请日：2001-08-21

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Satoshi Seo

IPC: H05B033/14

CPC classification number: H01L51/5048 ,  H01L27/32 ,  H01L51/0035 ,  H01L51/004 ,  H01L51/0077 ,  H01L51/0078 ,  H01L51/5016 ,  Y10S428/917

Abstract: An organic EL film is provided, which can convert triplet excitation energy into emission light using a polymer material. Also, an organic EL element is provided, which has high light-emitting efficiency and higher mechanical and thermal reliability than that in the conventional organic EL element by using the organic EL film. The present invention is characterized in that a polymer material with a heavy atom introduced on a chain or a polymer material doped with molecules containing a heavy atom is used for the organic EL element to introduce the heavy atom effect. In both the materials, the types of heavy atoms include a halogen element (particularly bromine or iodine), a metallic element, and the like. A rare gas element can also be used.

Abstract translation: 提供一种有机EL膜，其可以使用聚合物材料将三重态激发能量转换成发射光。 而且，通过使用有机EL膜，提供了比常规有机EL元件具有高的发光效率和更高的机械和热可靠性的有机EL元件。 本发明的特征在于，使用引入链上的重原子的聚合物材料或掺杂有重原子的分子的聚合物材料用于有机EL元件引入重原子效应。 在这两种材料中，重原子的类型包括卤素元素（特别是溴或碘），金属元素等。 也可以使用稀有气体元素。

公开(公告)号：US20040247936A1

公开(公告)日：2004-12-09

申请号：US10715106

申请日：2003-11-17

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Harue Nakashima ,  Satoshi Seo ,  Takako Takasu ,  Hiroko Yamazaki

IPC: B32B009/00 ,  B32B019/00

CPC classification number: H01L51/0077 ,  C09K11/06 ,  C09K2211/1011 ,  C09K2211/1022 ,  C09K2211/1029 ,  C09K2211/183 ,  H01L51/0089 ,  H01L51/5012 ,  H05B33/14 ,  Y10S428/917

Abstract: There is provided an electroluminescent element using a material that is excellent in film forming properties and carrier transporting properties, emits a light in the solid state, and can be suitably used also as a host material. The electroluminescent element has an electroluminescence layer between a couple of electrodes, and a complex of a Group 4 metal of the periodic table, which is excellent in the film forming properties and the carrier transporting properties and capable of emitting a light in the solid state, is used in a part of the electroluminescence layer to form the electroluminescent element. The complex of a Group 4 metal of the periodic table has an emission wavelength on a longer wavelength side as compared with conventional host materials such as Alq3, and thereby may be combined with a red light emitting guest material to form a light emitting layer.

Abstract translation: 提供了使用成膜性和载流子传输性优异的材料的电致发光元件，发出固态的光，并且也可以适当地用作主体材料。 电致发光元件在一对电极之间具有电致发光层，并且具有优异的成膜性能和载流子传输性能并能够发出固态光的元素周期表第4族金属的络合物， 用于电致发光层的一部分以形成电致发光元件。 元素周期表的第4族金属的复合物与常规的主体材料如Alq 3相比具有较长波长侧的发射波长，从而可以与红色发光客体材料组合以形成发光层。

公开(公告)号：US20040245541A1

公开(公告)日：2004-12-09

申请号：US10740513

申请日：2003-12-22

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Satoko Shitagaki ,  Satoshi Seo ,  Takeshi Nishi

IPC: H01J063/04 ,  H01L033/00

CPC classification number: H01L51/5246 ,  H01L51/5206 ,  H01L51/5218 ,  H01L51/5234 ,  H01L51/5259 ,  H01L2251/5315 ,  H01L2251/5323 ,  H05B33/04 ,  H05B33/20

Abstract: In a sealing method of a top-emission organic light emitting element, in the case of using a method of filling with a sealing agent between a substrate mounted with pixels and an opposed substrate, the organic light-emitting element is degraded by ultraviolet rays when irradiation of the ultraviolet rays is performed toward the pixels in order to achieve ultraviolet curing of the sealing agent filling on the pixels. It is an object of the present invention to propose a method for avoiding this phenomenon to provide an organic light-emitting device with superior stability. In order for a sealing agent 13 filling on a pixel portion 14 to have a larger absorbance to ultraviolet rays, an ultraviolet-absorbent material is dispersed in a sealing agent to make an adjustment so that the absorbance of ultraviolet absorption wavelength of 400 nm or less becomes 1 or more.

Abstract translation: 在顶发光有机发光元件的密封方法中，在使用在安装有像素的基板和相对基板之间填充密封剂的方法的情况下，有机发光元件被紫外线劣化， 对像素进行紫外线的照射，以实现填充在像素上的密封剂的紫外线固化。 本发明的目的是提出一种避免这种现象的方法，以提供具有优异稳定性的有机发光装置。 为了使填充在像素部14上的密封剂13对紫外线具有较大的吸光度，将紫外线吸收材料分散在密封剂中进行调整，使得紫外线吸收波长的吸光度为400nm以下 变为1以上。

公开(公告)号：US20030222575A1

公开(公告)日：2003-12-04

申请号：US10379123

申请日：2003-03-04

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Masakazu Murakami ,  Satoshi Seo

IPC: H05B033/00

CPC classification number: H01L51/5203 ,  H01L27/12 ,  H01L27/322 ,  H01L27/3246 ,  H01L51/0003 ,  H01L51/0014 ,  H01L51/0037 ,  H01L51/0042 ,  H01L51/005 ,  H01L51/0059 ,  H01L51/5228 ,  H01L51/5262 ,  H01L51/56 ,  H01L2251/5315

Abstract: Although an ink jet method known as a method of selectively forming a film of a high molecular species organic compound, can coat to divide an organic compound for emitting three kinds (R, G, B) of light in one step, film forming accuracy is poor, it is difficult to control the method and therefore, uniformity is not achieved and the constitution is liable to disperse. In contrast thereto, according to the invention, a film comprising a high molecular species material is formed over an entire face of a lower electrode connected to a thin film transistor by a coating method and thereafter, the film comprising the high molecular species material is etched by etching by plasma to thereby enable to selectively form a high molecular species material layer. Further, the organic compound layer is constituted by a material for carrying out luminescence of white color or luminescence of single color and combined with a color changing layer or a coloring layer to thereby realize full color formation.

Abstract translation: 虽然称为选择性地形成高分子量有机化合物的膜的方法的喷墨方法可以在一步中涂布以分解用于发射三种（R，G，B）光的有机化合物，但成膜精度为 差，难以控制方法，因此不能实现均匀性，并且构成容易分散。 与此相反，根据本发明，通过涂布方法在连接到薄膜晶体管的下电极的整个表面上形成包含高分子种类材料的膜，然后将包含高分子量材料的膜蚀刻 通过等离子体蚀刻，从而能够选择性地形成高分子物质材料层。 此外，有机化合物层由用于进行白色发光或单色发光的材料构成，并与变色层或着色层组合，从而实现全色形成。

公开(公告)号：US20020187567A1

公开(公告)日：2002-12-12

申请号：US10147923

申请日：2002-05-20

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Satoshi Seo

IPC: H01L021/00

CPC classification number: H01L51/0004 ,  H01L51/0034 ,  H01L51/0035 ,  H01L51/0036 ,  H01L51/0038 ,  H01L51/0039 ,  H01L51/005 ,  H01L51/0084 ,  H01L51/5012

Abstract: A device of forming a film from an organic compound material at low cost is provided, using an organic compound material having high light emission efficiency. An organic compound film is formed on a substrate under an inert gas atmosphere by spraying of a colloid solution in which organic compound aggregates are dispersed (this solution is also referred to as a nullsolnull). Note that the organic compound may be one in which particles are composed of aggregates of several organic compounds within a liquid, and may be one in which a portion of the organic compound is dissolved within a liquid.

Abstract translation: 使用具有高发光效率的有机化合物材料提供以低成本从有机化合物材料形成膜的装置。 通过喷雾分散了有机化合物聚集体的胶体溶液（该溶液也称为“溶胶”），在惰性气体气氛下在基板上形成有机化合物膜。 注意，有机化合物可以是其中颗粒由液体内的几种有机化合物的聚集体组成的有机化合物，并且可以是有机化合物的一部分溶解在液体中的那些。

公开(公告)号：US20020043663A1

公开(公告)日：2002-04-18

申请号：US09885469

申请日：2001-06-20

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Satoshi Seo ,  Shunpei Yamazaki

IPC: H01L027/15 ,  H01L031/12 ,  H01L033/00

CPC classification number: H01L51/0077 ,  H01L51/0079 ,  H01L51/5012

Abstract: There is provided a light emitting device which emits bright light, has low power consumption, and is inexpensive. An organic compound (polynuclear complex) with a molecular structure which is apt to generate a spin-orbit interaction is used for a light emitting layer or a dopant pigment of an EL element, so that a light emitting device in which an energy from a triplet excitation state can be converted into light emission is obtained. At this time, a center metal of the polynuclear complex is made an inexpensive metal (for example, Cu, Ni, Co, V, Mn, Fe, Zn, etc.), so that a manufacturing cost is reduced.

公开(公告)号：US20040265253A1

公开(公告)日：2004-12-30

申请号：US10809130

申请日：2004-03-25

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Satoshi Seo ,  Harue Nakashima ,  Ryoji Nomura

IPC: A61K007/021 ,  H01L035/24 ,  H01L051/00

CPC classification number: C09K11/06 ,  C01P2002/82 ,  C01P2002/84 ,  C03C14/008 ,  C03C17/005 ,  C03C17/009 ,  C03C2218/113 ,  C08G79/00 ,  C08G79/10 ,  C08K5/0091 ,  C08L85/00 ,  C09B57/10 ,  C09C1/40 ,  C09C1/407 ,  C09D7/62 ,  C09D185/00 ,  C09K11/641 ,  C09K2211/1029 ,  H01L51/0079 ,  H01L51/5012 ,  Y10S428/917

Abstract: An organic-inorganic hybrid material chelating a metal atom of a metal oxide matrix 103 in a pendant shape is synthesized, where the organic compound (the functional chelating agent) 104 is able to develop a function of a coloring property, a light-emitting property, or semiconductivity by chelating a metal atom. As a synthesis method, sol (a composition for coating application) including a metal alkoxide and/or a metal salt and a functional chelating agent may be prepared and the organic-inorganic hybrid material may be synthesized by sol-gel method. Due to the above-mentioned structure, it is possible to synthesize an organic-inorganic hybrid material that has an organic group directly bonded to a metal oxide matrix and is able to develop a different function from that of a mere metal oxide. In other words, it is possible to realize a functional organic-inorganic hybrid material that develops a coloring property, a light-emitting property, or semiconductivity due to the organic group directly bonded to the metal oxide matrix.

Abstract translation: 合成螯合金属氧化物基质103的金属原子的有机 - 无机杂化材料为侧基，其中有机化合物（功能螯合剂）104能够发挥着色性，发光特性 ，或通过螯合金属原子的半导电性。 作为合成方法，可以制备包含金属醇盐和/或金属盐的溶胶（涂布用组合物）和功能性螯合剂，并且可以通过溶胶 - 凝胶法合成有机 - 无机混合材料。 由于上述结构，可以合成具有与金属氧化物基质直接键合的有机基团的有机 - 无机杂化材料，并且能够产生与纯金属氧化物不同的功能。 换句话说，可以实现由于与金属氧化物基体直接键合的有机基团而产生着色性，发光特性或半导电性的功能性有机 - 无机杂化材料。