公开(公告)号：US20150155341A1

公开(公告)日：2015-06-04

申请号：US14559947

申请日：2014-12-04

Applicant: Japan Display Inc.

Inventor： Hironori TOYODA ,  Toshihiro SATO

IPC: H01L27/32 ,  H01L51/56

CPC classification number: H01L27/3246 ,  H01L51/0015 ,  H01L51/5092 ,  H01L51/56

Abstract: A first substrate provided with a plurality of pixel electrodes is prepared. A bank layer is formed so as to be placed on the periphery of each pixel electrode to define a plurality of pixel regions and contain a metal ion adsorbent. An organic electro-luminescence film is formed so as to be placed on the bank layer and the plurality of pixel electrodes and contain a metal complex which is a compound having a ligand coordinated to a metal ion. A common electrode is formed on the organic electro-luminescence film. The organic electro-luminescence film is formed such that the concentration of the metal ions is decreased above the bank layer by the metal ion adsorbent.

Abstract translation: 准备设置有多个像素电极的第一基板。 形成堤层以便放置在每个像素电极的周边上以限定多个像素区域并且包含金属离子吸附剂。 形成有机电致发光膜，以便被放置在堤层和多个像素电极上，并且含有金属络合物，其是具有与金属离子配位的配体的化合物。 在有机电致发光膜上形成公共电极。 形成有机电致发光膜，使得金属离子的浓度通过金属离子吸附剂降低到银层以上。

公开(公告)号：US20150069361A1

公开(公告)日：2015-03-12

申请号：US14480854

申请日：2014-09-09

Applicant: Japan Display Inc.

Inventor： Toshihiro SATO ,  Hironori TOYODA ,  Takeshi OOKAWARA

IPC: H01L27/32 ,  H01L51/56

CPC classification number: H01L27/3279 ,  H01L27/322 ,  H01L27/3246 ,  H01L51/0015 ,  H01L51/5243 ,  H01L2227/323

Abstract: A substrate on which a plurality of pixel electrodes are disposed is prepared. An organic electroluminescent film 22 is formed with the inclusion of a common layer that continuously covers the plural pixel electrodes. A common electrode is formed on the organic electroluminescent film. The common layer is irradiated with an energy ray above areas between the respective adjacent pixel electrodes with the avoidance of irradiation above the plural pixel electrodes. An electric conductivity of the common layer is reduced above the areas between the respective adjacent pixel electrodes, by irradiation of the energy ray. With this configuration, a current leakage can be prevented between the adjacent pixels.

Abstract translation: 制备其上设置有多个像素电极的基板。 形成有机电致发光膜22，其包括连续地覆盖多个像素电极的公共层。 在有机电致发光膜上形成公共电极。 在各个相邻的像素电极之间的区域上方的能量射线照射公共层，避免了在多个像素电极之上的照射。 通过能量射线的照射，共同层的电导率降低到各个相邻像素电极之间的面积之上。 利用这种配置，可以防止相邻像素之间的电流泄漏。

公开(公告)号：US20190325819A1

公开(公告)日：2019-10-24

申请号：US16386336

申请日：2019-04-17

Applicant: Japan Display Inc.

Inventor： Hironori TOYODA

IPC: G09G3/3225 ,  H01L27/32 ,  H01L51/52 ,  H01L51/50

Abstract: Provided is a display device possessing a first pixel, a second pixel, a partition wall, and an emission-quenching layer. The first pixel includes a first pixel electrode, a first emission layer located over the first pixel electrode and containing a first emission material, and an opposing electrode over the first emission layer. The second pixel is adjacent to the first pixel and includes a second pixel electrode, a second emission layer located over the second pixel electrode and containing a second emission material, and the opposing electrode. The emission-quenching layer is sandwiched by the partition wall and the opposing electrode and contains at least one of the first emission material and the second emission material at a concentration higher than at least one of a concentration of the first emission material in the first emission layer and a concentration of the second emission material in the second emission layer.

公开(公告)号：US20180315955A1

公开(公告)日：2018-11-01

申请号：US16029713

申请日：2018-07-09

Applicant: Japan Display Inc.

Inventor： Toshihiro SATO ,  Hironori TOYODA

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

CPC classification number: H01L51/5246 ,  H01L27/3211 ,  H01L27/3213 ,  H01L27/3246 ,  H01L27/3248 ,  H01L27/3251 ,  H01L27/3258 ,  H01L27/3276 ,  H01L51/504 ,  H01L51/5044 ,  H01L51/5221 ,  H01L51/5234 ,  H01L51/5243 ,  H01L51/5253 ,  H01L51/5256 ,  H01L51/5284 ,  H01L2251/301 ,  H01L2251/558

Abstract: An organic electroluminescence display device includes: a lower electrode that is made of a conductive inorganic material and formed in each of pixels arranged in a matrix in a display area; a light-emitting organic layer that is in contact with the lower electrode and made of a plurality of different organic material layers including a light-emitting layer emitting light; an upper electrode that is in contact with the light-emitting organic layer, formed so as to cover the whole of the display area, and made of a conductive inorganic material; and a conductive organic layer that is in contact with the upper electrode, formed so as to cover the whole of the display area, and made of a conductive organic material.

公开(公告)号：US20180062114A1

公开(公告)日：2018-03-01

申请号：US15657954

申请日：2017-07-24

Applicant: Japan Display Inc.

Inventor： Hironori TOYODA

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

CPC classification number: H01L51/5259 ,  H01L27/3244 ,  H01L51/5012 ,  H01L51/5218 ,  H01L51/5234 ,  H01L51/5271 ,  H01L2251/301 ,  H01L2251/5315

Abstract: A display device includes a light emitting device layer including a light emitting layer, a light-transmissive upper electrode on the light emitting device layer, a lower electrode having light transmittance and moisture permeability under the light emitting device layer, a light reflection layer under the lower electrode, and a hygroscopic layer having a hygroscopic property between the lower electrode and the light reflection layer.

公开(公告)号：US20150090992A1

公开(公告)日：2015-04-02

申请号：US14501094

申请日：2014-09-30

Applicant: Japan Display Inc.

Inventor： Toshio MIYAZAWA ,  Mitsuhide MIYAMOTO ,  Hironori TOYODA ,  Kouhei TAKAHASHI ,  Masumi NISHIMURA

IPC: H01L51/52 ,  H01L27/32

CPC classification number: H01L51/5271 ,  H01L2251/5315

Abstract: In an organic EL display device having plural organic EL elements each including an organic light emitting layer, an upper electrode formed on an upper side of the organic light emitting layer, and a reflective layer formed on a lower side of the organic light emitting layer, in which an image is displayed on a side of the organic light emitting layer on which the upper electrode is formed. The reflective layer in each of the organic EL elements includes a first plane, a second plane formed on a side lower than the first plane; and an inclined plane formed between the first plane and the second plane, and linearly inclined at a given angle equal to or higher than 35°, and equal to or lower than 55°.

Abstract translation: 在具有多个有机EL元件的有机EL显示器件中，每个有机发光层包括有机发光层，上电极形成在有机发光层的上侧，反射层形成在有机发光层的下侧， 其中在其上形成有上电极的有机发光层的一侧上显示图像。 每个有机EL元件中的反射层包括第一平面，在比第一平面低的一侧形成的第二平面; 以及形成在第一平面和第二平面之间的倾斜平面，并且以等于或高于35°，等于或小于55°的给定角度线性倾斜。

公开(公告)号：US20150090986A1

公开(公告)日：2015-04-02

申请号：US14497365

申请日：2014-09-26

Applicant: Japan Display Inc.

Inventor： Hironori TOYODA ,  Toshihiro SATO

IPC: H01L27/32

CPC classification number: H01L27/322 ,  H01L27/3209 ,  H01L27/3213 ,  H01L51/5278 ,  H01L2251/5315 ,  H01L2251/558

Abstract: An organic EL display device includes: a TFT substrate that includes a display area in which pixels are arranged in a matrix; and a color filter substrate that is provided to face the TFT substrate and includes an area transmitting light in a predetermined wavelength range for each of the pixels. Each of the pixels of the TFT substrate includes a pair of electrodes, at least two light emission layers that are arranged between the pair of electrodes, and a charge generation layer that is arranged between the at least two light emission layers, is a layer to generate a pair of positive and negative charges, and has different film thicknesses in accordance with the predetermined wavelength range of the corresponding area.

Abstract translation: 有机EL显示装置包括：TFT基板，其包括以矩阵形式排列像素的显示区域; 以及滤色器基板，被设置为面对TFT基板，并且包括透射每个像素的预定波长范围的光的区域。 TFT基板的每个像素包括一对电极，布置在该对电极之间的至少两个发光层和布置在至少两个发光层之间的电荷产生层是一层 产生一对正电荷和负电荷，并且根据相应区域的预定波长范围具有不同的膜厚度。

公开(公告)号：US20140217924A1

公开(公告)日：2014-08-07

申请号：US14168073

申请日：2014-01-30

Applicant: Japan Display Inc.

Inventor： Toshihiro SATO ,  Hironori TOYODA

IPC: H05B33/08

CPC classification number: H05B33/08 ,  G09G3/2003 ,  G09G3/3233 ,  G09G2320/0242 ,  G09G2320/029 ,  G09G2320/045 ,  G09G2320/048 ,  G09G2320/0666 ,  H01L27/3232

Abstract: In an organic EL display apparatus, a chromaticity change of image display due to deterioration in an OLED is corrected. The organic EL display apparatus includes an EC element layer formed of one kind or a plurality of kinds of electrochromic elements which are disposed on an OLED portion and develop colors. Each of the electrochromic elements has a peak in a transmission spectrum during development of a color in any one of the emission wavelength bands of the pixels corresponding to the plurality of colors. The electrochromic element receives a DC voltage from a driver so as to be driven. Chromaticity of image display is adjusted by controlling a color development intensity of the electrochromic element by using the DC voltage which is applied by the driver.

Abstract translation: 在有机EL显示装置中，校正由于OLED劣化引起的图像显示的色度变化。 有机EL显示装置包括由一部分形成的EC元件层或多个电致变色元件，其设置在OLED部分上并显色。 每个电致变色元件在对应于多种颜色的像素的发射波长带的任何一个中显色期间的透射光谱中具有峰值。 电致变色元件从驱动器接收直流电压以便被驱动。 通过使用由驾驶员施加的直流电压来控制电致变色元件的显色强度来调节图像显示的色度。

公开(公告)号：US20140110735A1

公开(公告)日：2014-04-24

申请号：US14057141

申请日：2013-10-18

Applicant: Japan Display Inc.

Inventor： Toshihiro SATO ,  Hironori TOYODA ,  Jun FUJIYOSHI

IPC: H01L33/10

CPC classification number: H01L27/322 ,  H01L27/3218 ,  H01L27/3246 ,  H01L27/3248 ,  H01L27/3262 ,  H01L33/10 ,  H01L51/5036 ,  H01L51/5206 ,  H01L51/5221 ,  H01L51/5228 ,  H01L51/5234 ,  H01L51/5246 ,  H01L51/5253 ,  H01L51/5271 ,  H01L51/5284 ,  H01L2251/301 ,  H01L2251/305 ,  H01L2251/308 ,  H01L2251/5307

Abstract: There is provided an EL display device of a color filter system which obtains sufficient brightness and contrast while making it difficult to generate a color mixture even if pixels become fine. An EL display device 100 according to the present invention includes a first substrate 1, a circuit layer 2 formed on the first substrate 1, a color selection reflection layer 11 formed in an upper layer of the circuit layer 2, lower electrodes 5 formed in an upper layer of the color selection reflection layer 11, a white light emission EL layer 7 formed in an upper layer of the lower electrodes 5, an upper electrode 8 formed in an upper layer of the EL layer 7, and a sealing layer 9 formed in an upper layer of the upper electrode 8.

Abstract translation: 提供了一种滤色器系统的EL显示装置，其获得足够的亮度和对比度，同时即使像素变细也难以产生混色。 根据本发明的EL显示装置100包括第一基板1，形成在第一基板1上的电路层2，形成在电路层2的上层中的选色反射层11，形成在电路层2中的下电极5 彩色选择反射层11的上层，形成在下电极5的上层中的白色发光EL层7，形成在EL层7的上层中的上电极8和形成在 上电极8的上层。

公开(公告)号：US20140062294A1

公开(公告)日：2014-03-06

申请号：US14010875

申请日：2013-08-27

Applicant: Japan Display Inc.

Inventor： Hironori TOYODA ,  Toshihiro SATO

IPC: H05B33/12

CPC classification number: H05B33/12 ,  H01L27/322 ,  H01L27/3246 ,  H01L51/5284

Abstract: An EL display device with color filter capable of surpressing color mixture. The EL display device includes: a first substrate having lower electrodes, a pixel separation film that separates the lower electrodes from each other, and an EL layer of white light emission; a second substrate having a black matrix and a color filter; and a sealing layer, in which the following Expression is satisfied. W>2 tan(θm)(HBM+H+HG+HS)−(WS+WBM) where W is a width of an aperture area, WBM is a width of the black matrix, WS is a width of the pixel separation films, HBM is a thickness of the black matrix, H is a thickness of the color filter, HG is a distance between a front surface of the pixel separation film and a color filter rear surface, HS is a height of the pixel separation film, and θm is a critical angle between the second substrate and an air.

Abstract translation: 具有能够抑制混色的滤色器的EL显示装置。 EL显示装置包括：具有下电极的第一基板，将下电极彼此分离的像素分离膜和白色发光的EL层; 具有黑矩阵的第二基板和滤色器; 和密封层，其中满足以下表达式。 W> 2 tan（thetam）（HBM + H + HG + HS） - （WS + WBM）其中W是开口面积的宽度，WBM是黑矩阵的宽度，WS是像素分离膜的宽度 HBM是黑色矩阵的厚度，H是滤色器的厚度，HG是像素分离膜的前表面与滤色器后表面之间的距离，HS是像素分离膜的高度，以及 电子束是第二衬底和空气之间的临界角。