公开(公告)号：US09692014B2

公开(公告)日：2017-06-27

申请号：US15059085

申请日：2016-03-02

Applicant: Japan Display Inc.

Inventor： Ryoichi Ito ,  Toshihiro Sato ,  Shigeru Sakamoto

IPC: H01L33/00 ,  H01L51/52 ,  H01L27/32

CPC classification number: H01L51/5271 ,  H01L27/3246 ,  H01L27/3258 ,  H01L51/5218 ,  H01L2251/5315

Abstract: A display device includes a substrate; a transistor provided on the substrate; a first insulating film provided on the substrate and the transistor; a second insulating film provided on the first insulating film; an individual pixel electrode provided on the second insulating film; a light emitting layer provided on the individual pixel electrode; a common electrode provided on the light emitting layer; and a contact hole running through the first insulating film and the second insulating film and connecting a source or a drain of the transistor with the pixel electrode. The second insulating film has at least one recessed portion reaching the first insulating film; and the individual pixel electrode is provided along a top surface of the second insulating film and the first recessed portion.

公开(公告)号：US09692001B2

公开(公告)日：2017-06-27

申请号：US14838495

申请日：2015-08-28

Applicant: Japan Display Inc.

Inventor： Hironori Toyoda ,  Toshihiro Sato

IPC: H01L51/50 ,  H01L27/32

CPC classification number: H01L51/504 ,  H01L27/3206 ,  H01L51/502

Abstract: The display device includes a first organic electroluminescence element which includes an anode and a cathode which form a pair, and a light emitting layer which is formed between the anode and the cathode on a substrate. The light emitting layer includes a plurality of sub-light emitting layers which perform light emitting of colors which are respectively different. Each of the plurality of sub-light emitting layers is doped with a quantum dot light emitting material corresponding to a color to be emitted. A current with current density corresponding to a position of a sub-light emitting layer of a desired color among the plurality of sub-light emitting layers is injected to the light emitting layer, and the sub-light emitting layer of the desired color performs light emitting.

公开(公告)号：US09678378B2

公开(公告)日：2017-06-13

申请号：US14678083

申请日：2015-04-03

Applicant: Japan Display Inc.

Inventor： Toshihiro Sato

IPC: H01L29/08 ,  G02F1/1334 ,  G02F1/1333 ,  G02F1/1343

CPC classification number: G02F1/1334 ,  G02F1/133377 ,  G02F1/134336 ,  G02F2201/44 ,  H01L27/3246 ,  H01L51/5268

Abstract: A display device includes: a substrate including a display area composed of a plurality of pixels disposed in a matrix; lower electrodes each formed in each of the plurality of pixels on the substrate and composed of a conductor; an organic layer formed on the lower electrodes and including a light-emitting layer; an upper electrode formed on the organic layer and composed of a conductor; and a pixel separation film at least a portion of which includes polymer dispersed liquid crystal, the pixel separation film being in contact with edges of the lower electrodes to insulate between the lower electrodes of the pixels adjacent to each other.

公开(公告)号：US09673260B2

公开(公告)日：2017-06-06

申请号：US15182150

申请日：2016-06-14

Applicant: Japan Display Inc.

Inventor： Hiroshi Oooka ,  Hirotsugu Sakamoto ,  Toshihiro Sato

IPC: H01L29/08 ,  H01L35/24 ,  H01L51/00 ,  H01L27/32 ,  H01L51/52

CPC classification number: H01L27/3213 ,  H01L27/322 ,  H01L27/3246 ,  H01L27/3248 ,  H01L27/3265 ,  H01L27/3276 ,  H01L51/5228 ,  H01L2251/5315

Abstract: In an organic EL display device, a resistance of a cathode electrode of OLEDs is substantially reduced while maintaining a higher opening ratio of pixels as an entire display area. A reference power supply line is formed on a glass substrate, and receives a reference potential for driving the OLED. The OLED is formed on the glass substrate where the reference power supply line is formed, and has a structure in which a lower electrode, an organic material layer, and an upper electrode that is a cathode electrode common to plural pixels are laminated on each other in the order from the bottom. In some of the plural pixels, a cathode contact that penetrates through the organic material layer, and electrically connects the upper electrode to the reference power supply line is formed within an opening area corresponding to a W sub-pixel.

公开(公告)号：US09666829B2

公开(公告)日：2017-05-30

申请号：US14477033

申请日：2014-09-04

Applicant: Japan Display Inc.

Inventor： Ryoichi Ito ,  Toshihiro Sato

IPC: H01L51/52 ,  H01L27/32

CPC classification number: H01L51/5209 ,  H01L27/322 ,  H01L27/3246 ,  H01L27/3258 ,  H01L51/5225 ,  H01L51/5271 ,  H01L51/5284

Abstract: An organic electroluminescent display device includes a first insulating layer that buries a peripheral portion of a first electrode and has an opening exposing an area of the first electrode inner to the peripheral portion thereof; a second electrode that is in contact with the first electrode in the opening and is provided continuously on a top surface of the first electrode and onto a top surface of the first insulating layer; a second insulating layer covering a peripheral portion of the second electrode; an organic EL layer; and a third electrode. The second electrode includes a stepped portion. An area where the stepped portion is included and the second electrode, the organic electroluminescence layer and the third electrode overlap each other is a light emitting area. Light emitted by the organic EL layer is reflected by the stepped portion.

公开(公告)号：US20170117348A1

公开(公告)日：2017-04-27

申请号：US15345054

申请日：2016-11-07

Applicant: Japan Display Inc.

Inventor： Yuko MATSUMOTO ,  Toshihiro Sato

IPC: H01L27/32

CPC classification number: H01L27/3276 ,  H01L27/3246 ,  H01L27/3248 ,  H01L27/3262 ,  H01L27/3279 ,  H01L51/5203 ,  H01L51/5234 ,  H01L51/56

Abstract: An organic EL display device includes: a lower electrode; an upper electrode; a first organic layer which is disposed between the lower electrode and the upper electrode and is formed of a plurality of layers including a light emitting layer formed of an organic material that emits light; a metal wire that extends between the pixels within the display region; and a second organic layer which is formed of a plurality of layers the same as that of the first organic layer and which comes into contact with a part of the metal wire and does not come into contact with the first organic layer. The upper electrode comes into contact with the metal wire in the periphery of the second organic layer. Accordingly, it is possible to uniformize the potential of the upper electrode without reducing the light emission area.

公开(公告)号：US09614011B2

公开(公告)日：2017-04-04

申请号：US14978639

申请日：2015-12-22

Applicant: Japan Display Inc.

Inventor： Toshihiro Sato ,  Hironori Toyoda ,  Jun Fujiyoshi

IPC: H01L29/04 ,  H01L27/32 ,  H01L33/10 ,  H01L51/52 ,  H01L51/50

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.

公开(公告)号：US09595689B2

公开(公告)日：2017-03-14

申请号：US14656888

申请日：2015-03-13

Applicant: Japan Display Inc.

Inventor： Naoki Uetake ,  Hiroki Ohara ,  Toshihiro Sato

IPC: H01L29/08 ,  H01L51/52

CPC classification number: H01L51/5234 ,  H01L51/5225 ,  H01L51/524 ,  H01L51/5253 ,  H01L2251/5315

Abstract: A display device includes a substrate, a light emitting layer including one or more kinds of organic light emitting films, a transparent electrode that comes in contact with an upper surface of the light emitting layer, and a glass plate that covers an upper side of the transparent electrode, in which the transparent electrode has a contour corresponding to a contour of the glass plate in a plan view.

Abstract translation: 显示装置包括基板，包括一种或多种有机发光膜的发光层，与发光层的上表面接触的透明电极和覆盖该发光层的上侧的玻璃板 透明电极，其中透明电极在平面图中具有对应于玻璃板的轮廓的轮廓。

公开(公告)号：US09583737B2

公开(公告)日：2017-02-28

申请号：US14976058

申请日：2015-12-21

Applicant: Japan Display Inc.

Inventor： Toshihiro Sato

IPC: H01L51/50 ,  H01L51/52 ,  H01L27/32 ,  H01L21/00

CPC classification number: H01L51/5271 ,  H01L27/3211 ,  H01L27/322 ,  H01L27/3283 ,  H01L51/5218 ,  H01L51/5225 ,  H01L51/5234 ,  H01L51/5265

Abstract: An organic electro-luminescence display device includes a first substrate, plural pedestals which are provided in a convex shape on the first substrate and have inclined side surfaces, plural first electrodes respectively provided on the respective side surfaces of the pedestals, an organic electro-luminescence film which is provided above the plural pedestals and includes a light-emitting layer laminated on the plural fist electrodes, and a second electrode which is provided above the plural pedestals and is laminated on the organic electro-luminescence film. Light generated in the light-emitting layer is transmitted between a first reflection surface and a second reflection surface. The second electrode includes light transmission parts, through which the light passes, above upper end parts of the pedestals. A surface of the second electrode facing the organic electro-luminescence film is the second reflection surface except for the light transmission parts.

Abstract translation: 有机电致发光显示装置包括：第一基板，在第一基板上呈凸状设置的倾斜侧面的多个基座，分别设置在基座的各个侧面的多个第一电极，有机电致发光 膜，其设置在所述多个基座的上方，并且包括层叠在所述多个第一电极上的发光层，以及设置在所述多个基座上方并层叠在所述有机电致发光膜上的第二电极。 在发光层产生的光在第一反射面和第二反射面之间传递。 第二电极包括光通过的光透射部分，在基座的上端部分上方。 面向有机电致发光膜的第二电极的表面是除了透光部分之外的第二反射表面。

公开(公告)号：US09577014B2

公开(公告)日：2017-02-21

申请号：US14657363

申请日：2015-03-13

Applicant: Japan Display Inc.

Inventor： Yoshinori Ishii ,  Toshihiro Sato

IPC: H01L29/08 ,  H01L27/32 ,  H01L51/52

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

Abstract: A manufacturing method of an organic electroluminescence display device including a device substrate provided with a plurality of pixel electrodes which have a gap part therebetween, a common electrode disposed opposite to the plurality of pixel electrodes, a light emitting layer provided over the plurality of pixel electrodes, and a bank layer provided in the gap part of the plurality of pixel electrodes, the method comprising forming a cover layer including a concave region to fit into a convex shaped part of the bank layer at a support substrate, forming a color filter layer facing the pixel electrode to the concave region, disposing a surface of the color filter layer on the device substrate so that the concave region fits into a convex shaped part, and attaching the cover layer and the color filter layer on the device substrate by peeling the cover layer from the support substrate.

Abstract translation: 一种有机电致发光显示装置的制造方法，其特征在于，具备：具备设置有多个像素电极的元件基板的元件基板，与所述多个像素电极相对配置的公共电极，设置在所述多个像素电极的上方的发光层 以及设置在所述多个像素电极的间隙部分中的堤层，所述方法包括形成包括凹区域的覆盖层，以在支撑基板处装配到所述堤层的凸形部分中，形成面向 所述像素电极到所述凹区域，将所述滤色器层的表面设置在所述器件基板上，使得所述凹入区域配合到凸形部分中，并且通过剥离所述盖子将所述覆盖层和所述滤色器层附着在所述器件基板上 层。