公开(公告)号：US09048448B2

公开(公告)日：2015-06-02

申请号：US13742584

申请日：2013-01-16

Applicant: PANASONIC CORPORATION

Inventor： Kenji Harada ,  Seiji Nishiyama ,  Takahiro Komatsu ,  Takayuki Takeuchi ,  Shinya Fujimura ,  Satoru Ohuchi ,  Hirofumi Fujita ,  Yoshiaki Tsukamoto

IPC: H01L51/50 ,  H01L27/32 ,  H01L51/52

CPC classification number: H01L51/5088 ,  H01L27/3246 ,  H01L51/5206

Abstract: An organic EL element comprises: an anode; a cathode; a functional layer including at least a light-emitting layer; a hole injection layer disposed between the anode and the functional layer; and a bank. The hole injection layer contains tungsten oxide. Tungsten atoms constituting the tungsten oxide include both tungsten atoms with a valence of six and tungsten atoms with a valence less than six. The hole injection layer includes a crystal of the tungsten oxide. A particle diameter of the crystal is on an order of nanometers. The hole injection layer has a recessed portion whose inner side surface has an upper edge that is one of (i) aligned with part of a lower edge of the bank, the part being in contact with the light-emitting layer, and (ii) in contact with a bottom surface of the bank.

Abstract translation: 有机EL元件包括：阳极; 阴极 至少包括发光层的功能层; 设置在阳极和功能层之间的空穴注入层; 和银行。 空穴注入层含有氧化钨。 构成氧化钨的钨原子包括六价钨原子和价态小于六的钨原子。 空穴注入层包括氧化钨的晶体。 晶体的粒径为数毫米。 空穴注入层具有凹部，其内侧表面具有上边缘，其为（i）与堤的下边缘的一部分对准，该部分与发光层接触，以及（ii） 与银行的底表面接触。

公开(公告)号：US09012896B2

公开(公告)日：2015-04-21

申请号：US13742593

申请日：2013-01-16

Applicant: Panasonic Corporation

Inventor： Kenji Harada ,  Seiji Nishiyama ,  Takahiro Komatsu ,  Takayuki Takeuchi ,  Satoru Ohuchi ,  Yoshiaki Tsukamoto ,  Shinya Fujimura ,  Kei Sakanoue

IPC: H01L51/50 ,  H01L27/32 ,  H01L51/56

CPC classification number: H01L51/5012 ,  H01L27/3246 ,  H01L51/5004 ,  H01L51/5088 ,  H01L51/56 ,  H01L2251/552

Abstract: In an organic EL element, a bank is formed on a hole injection layer so as to surround light-emitting layer. The hole injection layer is formed with a tungsten oxide thin film, and has, in an electronic state thereof, an occupied energy level 1.8 eV to 3.6 eV lower than the lowest energy level of a valence band of the hole injection layer. The hole injection layer has a recessed portion in an upper surface thereof. An inner surface of the recessed portion is in contact with a functional layer (light-emitting layer). the inner side surface of the recessed portion includes an upper edge that is one of aligned with part of a lower edge of the bank, the part being in contact with the functional layer, and in contact with a bottom surface of the bank.

Abstract translation: 在有机EL元件中，以围绕发光层的空穴注入层形成堤。 空穴注入层由氧化钨薄膜形成，并且在电子状态下，空穴注入层的空穴注入层的价带的最低能级低于1.8eV〜3.6eV。 空穴注入层在其上表面具有凹部。 凹部的内表面与功能层（发光层）接触。 凹部的内侧表面包括与边缘的下边缘的一部分对准的上边缘，该部分与功能层接触并且与堤的底表面接触。

公开(公告)号：US08921838B2

公开(公告)日：2014-12-30

申请号：US13739384

申请日：2013-01-11

Applicant: Panasonic Corporation

Inventor： Takayuki Takeuchi ,  Seiji Nishiyama

IPC: H01L51/50 ,  H01L27/32 ,  H01L51/52 ,  H01L51/56

CPC classification number: H01L51/5088 ,  H01L27/3246 ,  H01L51/5218 ,  H01L51/56

Abstract: Each of organic light-emitting elements 100a, 100b and 100c includes an anode, a functional layer including a hole-injection layer, a hole-transport layer and an organic light-emitting layer, and a cathode layered on a substrate in the stated order. Also, a bank defines a formation area of the organic light-emitting layer. Here, the hole-injection layer is a metal oxide layer formed by oxidizing an upper surface portion of the anode composed of the metal layer. Also, a portion of the hole-injection layer that is positioned under the area is depressed so as to form a recess, and upper peripheral edge of the recess is covered with a portion of the bank.

Abstract translation: 有机发光元件100a，100b和100c中的每一个包括阳极，包括空穴注入层，空穴传输层和有机发光层的功能层和以所述顺序层叠在基板上的阴极 。 另外，银行限定了有机发光层的形成区域。 这里，空穴注入层是通过氧化由金属层构成的阳极的上表面部分而形成的金属氧化物层。 此外，位于该区域下方的空穴注入层的一部分被压下以形成凹部，并且凹部的上周边缘被堤的一部分覆盖。

公开(公告)号：US09029843B2

公开(公告)日：2015-05-12

申请号：US13746485

申请日：2013-01-22

Applicant: Panasonic Corporation

Inventor： Kenji Harada ,  Seiji Nishiyama ,  Takahiro Komatsu ,  Takayuki Takeuchi ,  Satoru Ohuchi ,  Yoshiaki Tsukamoto ,  Shinya Fujimura ,  Kei Sakanoue

IPC: H01L51/50 ,  H01L51/52

CPC classification number: H01L51/5088 ,  H01L51/5209 ,  H01L51/5218 ,  H01L2251/5369

Abstract: An organic light-emitting element comprising: an anode; a cathode; banks; a functional layer between the anode and the cathode; and a hole injection layer between the anode and the functional layer. The functional layer includes one or more sublayers including a light-emitting sublayer defined by the banks and that contains an organic material. The hole injection layer comprises tungsten oxide, includes an occupied energy level that is approximately 1.8 electron volts to approximately 3.6 electron volts lower than a lowest energy level of a valence band of the hole injection layer in terms of a binding energy, has a surface facing the functional layer, and has a recessed structure such that a portion of the surface overlapping with the light-emitting sublayer is located closer to the anode than other portions. The recessed structure has a recessed portion whose inner surface is in contact with the functional layer.

Abstract translation: 一种有机发光元件，包括：阳极; 阴极 银行; 阳极和阴极之间的功能层; 以及阳极和功能层之间的空穴注入层。 功能层包括一个或多个子层，其包括由堤限定并且包含有机材料的发光子层。 空穴注入层包括氧化钨，包括比结合能量方面的空穴注入层的价带的最低能级低约1.8电子伏至约3.6电子伏的占有能级，具有面向 功能层，并且具有凹陷结构，使得与发光子层重叠的表面的一部分比其他部分更靠近阳极。 凹陷结构具有内表面与功能层接触的凹部。

公开(公告)号：US09012897B2

公开(公告)日：2015-04-21

申请号：US13746474

申请日：2013-01-22

Applicant: Panasonic Corporation

Inventor： Kenji Harada ,  Seiji Nishiyama ,  Takahiro Komatsu ,  Takayuki Takeuchi ,  Satoru Ohuchi ,  Hirofumi Fujita ,  Shinya Fujimura

IPC: H01L51/50 ,  H01L27/32 ,  H01L51/52 ,  H01L51/56

CPC classification number: H01L51/5088 ,  H01L27/3246 ,  H01L51/5218 ,  H01L51/5271 ,  H01L51/56 ,  H01L2251/5361

Abstract: An organic EL element comprises: an anode; a cathode; a functional layer that is disposed between the anode and the cathode and includes at least a light-emitting layer; a hole injection layer disposed between the anode and the functional layer; and a bank. The hole injection layer contains tungsten oxide, and has a recessed portion. A UPS spectrum of the hole injection layer, obtained from a UPS measurement, has a protrusion appearing near a Fermi surface and within a region corresponding to a binding energy range lower than a top of a valence band. The tungsten oxide contained in the hole injection layer satisfies a condition, determined from an XPS measurement, that a ratio in a number density of atoms other than tungsten atoms and oxygen atoms to the tungsten atoms does not exceed approximately 0.83.

Abstract translation: 有机EL元件包括：阳极; 阴极 功能层，其设置在所述阳极和所述阴极之间，并且至少包括发光层; 设置在阳极和功能层之间的空穴注入层; 和银行。 空穴注入层含有氧化钨，具有凹部。 从UPS测量获得的空穴注入层的UPS光谱具有出现在费米表面附近并且在对应于低于价带顶部的结合能量范围的区域内的突起。 包含在空穴注入层中的氧化钨满足由XPS测定确定的钨原子和氧原子之间的原子数与钨原子之间的数量比不超过约0.83的条件。

公开(公告)号：US20140367669A1

公开(公告)日：2014-12-18

申请号：US14375250

申请日：2013-01-31

Applicant: PANASONIC CORPORATION

Inventor： Takayuki Takeuchi ,  Sadayoshi Hotta

IPC: H01L27/32 ,  H01L51/56 ,  H01L51/50

CPC classification number: H01L27/3211 ,  H01L27/3246 ,  H01L27/3258 ,  H01L27/3276 ,  H01L51/5088 ,  H01L51/56

Abstract: A display panel where, within at least one aperture, an inter-layer insulation layer includes a planar region having a planar surface and a protruding region having a protruding surface relative to the planar region located wherever two or more of a gate electrode, a drain electrode, a source electrode, a first power supply signal wiring, and a second power supply signal wiring intersect, and an insulation film covers at least part of the protruding region and does not cover at least part of the planar region.

Abstract translation: 一种显示面板，其中在至少一个开口内的层间绝缘层包括具有平坦表面的平面区域和具有突出表面的突出区域，所述突出区域相对于位于栅电极，漏极 电极，源电极，第一电源信号布线和第二电源信号布线相交，绝缘膜覆盖至少部分突出区域，并且不覆盖平面区域的至少一部分。

公开(公告)号：US08563994B2

公开(公告)日：2013-10-22

申请号：US13721202

申请日：2012-12-20

Applicant: Panasonic Corporation

Inventor： Kenji Harada ,  Seiji Nishiyama ,  Takahiro Komatsu ,  Takayuki Takeuchi

IPC: H01L29/18

CPC classification number: H01L33/38 ,  H01L27/15 ,  H01L27/3246 ,  H01L27/3283 ,  H01L33/005 ,  H01L51/5048 ,  H01L51/5088 ,  H01L2251/5323 ,  H05B33/10 ,  H05B33/28

Abstract: A light-emitter including: a transparent first electrode; a charge injection transport layer; a light-emitting layer; and a transparent second electrode, layered in this order. The light-emitting layer is defined by a bank. The charge injection transport layer has a recessed structure including: an inner bottom surface in contact with a bottom surface of the light-emitting layer; and an inner side surface continuous with the inner bottom surface. The inner side surface includes: a lower edge continuous with the inner bottom surface; and an upper edge continuous with the lower edge. The upper edge is aligned with a bottom periphery of the bank, or has contact with a bottom surface of the bank. The charge injection transport layer has contact with a side surface of the light-emitting layer.

Abstract translation: 一种发光器件，包括：透明第一电极; 电荷注入传输层; 发光层; 和透明的第二电极。 发光层由银行定义。 电荷注入传输层具有凹陷结构，其包括：内底面与发光层的底面接触; 以及与内底面连续的内侧面。 内侧表面包括：与内底表面连续的下边缘; 以及与下边缘连续的上边缘。 上边缘与堤岸的底部边缘对齐，或者与堤岸的底面接触。 电荷注入传输层与发光层的侧表面接触。

公开(公告)号：US09029842B2

公开(公告)日：2015-05-12

申请号：US13742600

申请日：2013-01-16

Applicant: Panasonic Corporation

Inventor： Kenji Harada ,  Seiji Nishiyama ,  Takahiro Komatsu ,  Takayuki Takeuchi ,  Shinya Fujimura ,  Satoru Ohuchi ,  Hirofumi Fujita ,  Yoshiaki Tsukamoto

IPC: H01L51/50 ,  H01L51/56 ,  H01L27/32

CPC classification number: H01L51/50 ,  H01L27/3246 ,  H01L51/5088 ,  H01L51/56 ,  H01L2251/5369

Abstract: An organic light-emitting element comprising: an anode; a cathode; banks; a functional layer between the anode and the cathode; and a hole injection layer between the anode and the functional layer. The functional layer includes at least a light-emitting sublayer defined by the banks and that contains an organic material. The hole injection layer comprises tungsten oxide and includes a crystal of the tungsten oxide, whose particle diameter is on an order of nanometers. Tungsten atoms constituting the tungsten oxide include both tungsten atoms with a valence of six and tungsten atoms with a valence less than six. The hole injection layer has a surface facing the functional layer, and a portion of the surface overlapping with the light-emitting sublayer is located closer to the anode than other portions, thereby forming a recessed structure having a recessed portion whose inner surface is in contact with the functional layer.

Abstract translation: 一种有机发光元件，包括：阳极; 阴极 银行; 阳极和阴极之间的功能层; 以及阳极和功能层之间的空穴注入层。 功能层至少包括由堤形成并且包含有机材料的发光子层。 空穴注入层包括氧化钨，并且包括氧化钨的晶体，其粒径为数量级。 构成氧化钨的钨原子包括六价钨原子和价态小于六的钨原子。 空穴注入层具有面向功能层的表面，与发光子层重叠的一部分表面比其他部分位于更靠近阳极的位置，从而形成具有内表面接触的凹部的凹陷结构 与功能层。

公开(公告)号：US08946693B2

公开(公告)日：2015-02-03

申请号：US13742575

申请日：2013-01-16

Applicant: Panasonic Corporation

Inventor： Kenji Harada ,  Seiji Nishiyama ,  Takahiro Komatsu ,  Takayuki Takeuchi ,  Satoru Ohuchi ,  Hirofumi Fujita ,  Shinya Fujimura

IPC: H01L51/50 ,  H05B33/02 ,  H01L27/32

CPC classification number: H01L51/5088 ,  H01L27/3246 ,  H01L27/3283 ,  H05B33/02

Abstract: An organic EL element comprising: an anode; a cathode; banks; a functional layer between the anode and the cathode, the functional layer including one or more sublayers including a light-emitting sublayer, the light-emitting sublayer defined by the banks and containing an organic material; and a hole injection layer between the anode and the functional layer, wherein the hole injection layer comprises tungsten oxide. An Ultraviolet Photoelectron Spectroscopy (UPS) spectrum, obtained from a UPS measurement, has a protrusion appearing near a Fermi surface and within a region corresponding to a binding energy range lower than a top of a valence band. The tungsten oxide contained in the hole injection layer satisfies a condition, determined from an X-ray Photoelectron Spectroscopy (XPS) measurement, that a ratio in a number density of atoms other than tungsten atoms and oxygen atoms to the tungsten atoms does not exceed approximately 0.83.

Abstract translation: 一种有机EL元件，包括：阳极; 阴极 银行; 阳极和阴极之间的功能层，所述功能层包括一个或多个包括发光子层的子层，所述发光子层由堤形成并含有有机材料; 以及在所述阳极和所述功能层之间的空穴注入层，其中所述空穴注入层包含氧化钨。 从UPS测量获得的紫外光电子能谱（UPS）光谱具有在费米表面附近出现的突起，并且在对应于低于价带顶部的结合能范围的区域内。 包含在空穴注入层中的氧化钨满足从X射线光电子能谱（XPS）测定确定的钨原子和氧原子之间的原子数与钨原子之间的密度比不超过大约的条件 0.83。

公开(公告)号：US08927975B2

公开(公告)日：2015-01-06

申请号：US13719556

申请日：2012-12-19

Applicant: Panasonic Corporation

Inventor： Takayuki Takeuchi ,  Seiji Nishiyama

IPC: H01L27/32 ,  H01L51/56 ,  H01L33/42 ,  H01L51/50

CPC classification number: H01L33/42 ,  H01L27/3246 ,  H01L27/3283 ,  H01L51/5088 ,  H01L2251/5323

Abstract: Organic light-emitting elements each have the following structure: a transparent anode, a functional layer including a charge injection layer and an organic light-emitting layer, and a transparent cathode are layered on a substrate in the stated order; a bank defines a formation area of the organic light-emitting layer; the charge injection layer is a metal oxide layer formed by oxidizing an upper surface portion of the anode composed of the metal layer, and a portion of the charge injection layer that is positioned under the area is depressed so as to form a recess; and the upper peripheral edge of the recess is covered with a covering portion of the bank.

Abstract translation: 有机发光元件各自具有以下结构：透明阳极，包括电荷注入层和有机发光层的功能层和透明阴极以所述顺序层叠在基板上; 银行限定有机发光层的形成区域; 电荷注入层是通过氧化由金属层构成的阳极的上表面部分而形成的金属氧化物层，并且位于该区域下方的电荷注入层的一部分被压下以形成凹部; 并且凹部的上周缘覆盖有堤的覆盖部分。