公开(公告)号：US20170279067A1

公开(公告)日：2017-09-28

申请号：US15374186

申请日：2016-12-09

Applicant: Japan Display Inc.

Inventor： Takahiro Ushikubo ,  Hironori Toyoda

IPC: H01L51/50 ,  H01L51/52 ,  H01L51/00 ,  H01L27/32

CPC classification number: H01L51/5092 ,  H01L27/322 ,  H01L27/3244 ,  H01L51/0097 ,  H01L51/504 ,  H01L51/5072 ,  H01L51/5218 ,  H01L51/5234 ,  H01L51/5278 ,  H01L51/5284 ,  H01L2251/308 ,  H01L2251/5315 ,  H01L2251/5338 ,  H01L2251/558

Abstract: An organic EL display device includes an anode, a cathode and a light-emitting unit disposed between the anode and the cathode. The cathode is a transparent conductive film formed on the light-emitting unit. The light-emitting unit includes a light-emitting layer, an electron transport layer disposed between the light-emitting layer and the cathode, and an electron injection layer, disposed between the electron transport layer and the cathode, which is doped with an alkali metal. A thickness of the electron injection layer is equal to or greater than two times that of the electron transport layer.

公开(公告)号：US09577213B2

公开(公告)日：2017-02-21

申请号：US15060136

申请日：2016-03-03

Applicant: Japan Display Inc.

Inventor： Toshihiro Sato ,  Hironori Toyoda

IPC: H01J1/62 ,  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.

Abstract translation: 一种有机电致发光显示装置，具备：由导电性无机材料制成的下部电极，形成于显示区域中的矩阵状排列的各像素中; 与下部电极接触并且由包含发光层的发光层的多个不同的有机材料层构成的发光有机层; 形成为覆盖整个显示区域并由导电性无机材料形成的与发光有机层接触的上部电极; 以及与上部电极接触形成为覆盖整个显示区域并由导电性有机材料制成的导电性有机层。

公开(公告)号：US09553279B2

公开(公告)日：2017-01-24

申请号：US14791838

申请日：2015-07-06

Applicant: Japan Display Inc.

Inventor： Hironori Toyoda ,  Toshihiro Sato

IPC: H01L51/52 ,  H01L27/32

CPC classification number: H01L51/5218 ,  H01L27/3246 ,  H01L51/5209 ,  H01L51/5237 ,  H01L51/5246 ,  H01L51/5253 ,  H01L51/5265 ,  H01L51/5271

Abstract: An organic EL display device includes lower electrodes each provided for each of pixels, a bank layer formed so as to cover the peripheries of the lower electrodes and including bank openings through each of which a portion of the lower electrode is exposed, a light-emitting layer, an organic layer including portions each formed in the bank opening, a first barrier layer covering the organic layer, a second barrier layer covering the first barrier layer, an intermediate layer located at the edges of the bank openings, and light reflection films each provided under the lower electrode for each of the pixels. A first region where the intermediate layer is present when the pixel is viewed in a plan view includes, above or under the intermediate layer, a different layer structure from that of a second region inside the first region.

Abstract translation: 有机EL显示装置包括各自为每个像素设置的下电极，形成为覆盖下电极的周边的堤层，并且包括通过下电极的一部分暴露的堤开口，发光 层，包括各自形成在堤开口中的部分的有机层，覆盖有机层的第一阻挡层，覆盖第一阻挡层的第二阻挡层，位于堤开口的边缘处的中间层，以及光反射膜 设置在每个像素的下电极下方。 当在平面图中观看像素时存在中间层的第一区域包括在中间层的上方或下方与第一区域内的第二区域的层结构不同的层结构。

公开(公告)号：US09345074B2

公开(公告)日：2016-05-17

申请号：US14168073

申请日：2014-01-30

Applicant: Japan Display Inc.

Inventor： Toshihiro Sato ,  Hironori Toyoda

IPC: G09G3/19 ,  G09G3/30 ,  H05B33/08 ,  G09G3/20 ,  G09G3/32 ,  H01L27/32

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：US09324947B2

公开(公告)日：2016-04-26

申请号：US14480854

申请日：2014-09-09

Applicant: Japan Display Inc.

Inventor： Toshihiro Sato ,  Hironori Toyoda ,  Takeshi Ookawara

IPC: H01L27/32 ,  H01L51/00

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：US08937430B2

公开(公告)日：2015-01-20

申请号：US14010875

申请日：2013-08-27

Applicant: Japan Display Inc.

Inventor： Hironori Toyoda ,  Toshihiro Sato

IPC: H01L51/52 ,  H05B33/12 ,  H01L27/32

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（＆Theta; m）（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是像素的宽度 分离膜，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 和＆thetas; m是第二基板和空气之间的临界角。