公开(公告)号：US20180301666A1

公开(公告)日：2018-10-18

申请号：US15737901

申请日：2016-06-10

Applicant: Cambridge Display Technology Limited

Inventor： Colin Baker

IPC: H01L51/56 ,  H01L51/00

Abstract: A method of fabricating an organic light emitting device comprises patterning a first electrode layer to form a grid comprising a mesh of electrically conductive metal tracks, depositing a layer of hole injection material from a solution comprising less than 10% solids by weight in a solvent, the thickness of the wet layer of solution before the solvent is evaporated to dry the film being greater than the track spacing, evaporating the solvent to provide a dry film having an average thickness in the spacing between the tracks which is less than 10% of the wet thickness of the wet layer of solution and an average thickness in the spacing between the tracks which is greater than 25% of the track thickness to provide a more planar top surface than the surface of the metal tracks before the layer of hole injection material was deposited, depositing one or more further layers from solution to provide a light emitting layer and one or more optional charge transporting layers, and depositing a second electrode layer. The grid can comprise sets of tracks having different widths and spacings.

公开(公告)号：US09487878B2

公开(公告)日：2016-11-08

申请号：US14832942

申请日：2015-08-21

Applicant: CAMBRIDGE DISPLAY TECHNOLOGY LIMITED

Inventor： Colin Baker ,  Aleksandra Rankov

IPC: H01L29/08 ,  C25D7/12 ,  H01L51/52 ,  H01L51/56 ,  C25D5/02 ,  C25D5/34 ,  C25D5/54 ,  H01L51/00

CPC classification number: C25D7/126 ,  C25D5/02 ,  C25D5/34 ,  C25D5/54 ,  H01L51/0021 ,  H01L51/5203 ,  H01L51/5212 ,  H01L51/56 ,  H01L2251/5361 ,  H01L2251/56

Abstract: We describe a lighting tile having a substrate bearing an electrode structure, the electrode structure comprising: a plurality of electrically conductive tracks disposed over said substrate; and an electrical connection region connecting to said plurality of tracks; wherein the height of said tracks tapers away from said connection region to compensate for a reduction in luminance from said lighting tile array from the electrical connection region which arises from a non-uniform voltage drop which appears along the tracks in use. Advantageously the tracks are fabricated by electroplating: then, as the rate of deposition is determined by the voltage drop along a track during plating, the height of the deposited tracks, and therefore their resistance, will match the profile required in operation to compensate for the reduction in luminance which would otherwise occur.

Abstract translation: 我们描述一种具有带有电极结构的衬底的照明瓦，该电极结构包括：设置在所述衬底上的多个导电轨道; 以及连接到所述多个轨道的电连接区域; 其中所述轨道的高度从所述连接区域逐渐变细，以补偿来自所述照明瓦片阵列的亮度从电连接区域的减小，该电连接区域是由沿使用轨道出现的不均匀的电压降引起的。 有利地，通过电镀制造轨道：然后，随着沉积速率由电镀期间沿着轨道的电压降确定，沉积的轨道的高度以及因此的电阻将与操作中所需的轮廓匹配以补偿 否则会发生亮度降低。

公开(公告)号：US20180301662A1

公开(公告)日：2018-10-18

申请号：US15762245

申请日：2016-08-11

Applicant: Cambridge Display Technology Limited

Inventor： Philip Benzie ,  Colin Baker ,  Adam Strevens ,  William Young

IPC: H01L51/52 ,  H01L51/50

CPC classification number: H01L51/5265 ,  H01L51/504 ,  H01L51/5218 ,  H01L51/5234 ,  H01L2251/5315

Abstract: An organic light emitting device which emits white light in use, comprising a reflective anode (3), a first light emitting layer (9) which emits red light located over said anode, a second light emitting layer (11) which emits blue light and green light located over said first light emitting layer, and a cathode structure located over said second light emitting layer comprising a first semi-reflecting layer (15) and a second semi-reflecting layer (21) with a layer (19) of light transmissive material between the first and second semi-reflecting semi-transparent layers, the distance between the reflective anode (3) and the first semi-reflecting semi-transparent layer (17) being selected to form a micro-cavity which enhances blue light emission and red light emission from the device, and the distance between the reflective anode (3) and the second semi-reflecting semi-transparent layer (21) being selected to enhance green light emission from the device.

公开(公告)号：US10770686B2

公开(公告)日：2020-09-08

申请号：US15762245

申请日：2016-08-11

Applicant: Cambridge Display Technology Limited

Inventor： Philip Benzie ,  Colin Baker ,  Adam Strevens ,  William Young

IPC: H01L51/52 ,  H01L51/50

Abstract: An organic light emitting device which emits white light in use, comprising a reflective anode (3), a first light emitting layer (9) which emits red light located over said anode, a second light emitting layer (11) which emits blue light and green light located over said first light emitting layer, and a cathode structure located over said second light emitting layer comprising a first semi-reflecting layer (15) and a second semi-reflecting layer (21) with a layer (19) of light transmissive material between the first and second semi-reflecting semi-transparent layers, the distance between the reflective anode (3) and the first semi-reflecting semi-transparent layer (17) being selected to form a micro-cavity which enhances blue light emission and red light emission from the device, and the distance between the reflective anode (3) and the second semi-reflecting semi-transparent layer (21) being selected to enhance green light emission from the device.

公开(公告)号：US20160190507A1

公开(公告)日：2016-06-30

申请号：US14911782

申请日：2014-08-13

Applicant: CAMBRIDGE DISPLAY TECHNOLOGY LIMITED

Inventor： Alexander Doust ,  Natasha M. J. Conway ,  Colin Baker

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

CPC classification number: H01L51/5221 ,  H01L51/0039 ,  H01L51/5004 ,  H01L51/5088 ,  H01L51/5212 ,  H01L51/5231 ,  H01L2251/5361 ,  H01L2251/552

Abstract: A layered structure for an organic electronic device comprising: •(i) a substrate; •(ii) an electrode deposited on said substrate; and •(iii) a hole injection layer (HIL) deposited on said electrode, wherein said electrode comprises a metal grid and an organic charge transporting polymer layer (CTL) which, together with said substrate, encapsulates said metal grid and protects it from being attacked by acidic species in the hole injection layer.

Abstract translation: 一种有机电子器件的分层结构，包括：（i）衬底; •（ii）沉积在所述衬底上的电极; 和（iii）沉积在所述电极上的空穴注入层（HIL），其中所述电极包括金属栅极和有机电荷输送聚合物层（CTL），所述有机电荷传输聚合物层与所述衬底一起封装所述金属栅格并保护其不被 在空穴注入层中被酸性物质攻击。

公开(公告)号：US20150048350A1

公开(公告)日：2015-02-19

申请号：US14462438

申请日：2014-08-18

Applicant: CAMBRIDGE DISPLAY TECHNOLOGY LIMITED

Inventor： Colin Baker ,  Aleksandra Rankov

IPC: H01L51/52 ,  H01L51/56

CPC classification number: C25D7/126 ,  C25D5/02 ,  C25D5/34 ,  C25D5/54 ,  H01L51/0021 ,  H01L51/5203 ,  H01L51/5212 ,  H01L51/56 ,  H01L2251/5361 ,  H01L2251/56

Abstract: We describe a lighting tile having a substrate bearing an electrode structure, the electrode structure comprising: a plurality of electrically conductive tracks disposed over said substrate; and an electrical connection region connecting to said plurality of tracks; wherein the height of said tracks tapers away from said connection region to compensate for a reduction in luminance from said lighting tile array from the electrical connection region which arises from a non-uniform voltage drop which appears along the tracks in use. Advantageously the tracks are fabricated by electroplating: then, as the rate of deposition is determined by the voltage drop along a track during plating, the height of the deposited tracks, and therefore their resistance, will match the profile required in operation to compensate for the reduction in luminance which would otherwise occur.

公开(公告)号：US20150041787A1

公开(公告)日：2015-02-12

申请号：US14385486

申请日：2013-03-13

Applicant: CAMBRIDGE DISPLAY TECHNOLOGY LIMITED

Inventor： Surama Malik ,  Julian Carter ,  Laurence Scullion ,  Colin Baker ,  Arne Fleissner ,  Jeremy Burroughes

IPC: H01L51/50 ,  H01L51/56 ,  H01L51/00 ,  H01L51/44 ,  H01L51/52

CPC classification number: H01L51/5088 ,  H01L51/0035 ,  H01L51/0037 ,  H01L51/0038 ,  H01L51/0039 ,  H01L51/441 ,  H01L51/445 ,  H01L51/5212 ,  H01L51/5275 ,  H01L51/56 ,  H01L2251/5361 ,  Y02E10/549

Abstract: This invention generally relates to an optoelectronic device and a method of fabricating such a device, and more particularly to an optoelectronic device comprising an anode layer, a semiconductive layer provided over the anode layer, and a cathode layer provided over the semiconductive layer, the anode layer comprising a plurality of electrically conductive tracks connected together and spaced apart from one another with gaps therebetween, the device further comprising a first and one or more further hole injection layers provided between the anode layer and the semiconductive layer and extending across said gaps, wherein the first hole injection layer has a conductivity greater than the conductivity of the one or more further hole injection layers.

Abstract translation: 本发明一般涉及一种制造这种器件的光电子器件及其制造方法，尤其涉及一种包括阳极层，设在阳极层上的半导体层和设置在半导体层上的阴极层的光电器件，阳极 层包括连接在一起并且彼此间隔开的多个导电轨道，该装置还包括设置在阳极层和半导体层之间并延伸穿过所述间隙的第一和一个或多个另外的空穴注入层，其中 第一空穴注入层的导电率大于一个或多个其它空穴注入层的导电率。

公开(公告)号：US20170150573A1

公开(公告)日：2017-05-25

申请号：US15322371

申请日：2015-06-19

Applicant: Cambridge Display Technology Limited

Inventor： Natasha M.J. Conway ,  Colin Baker ,  Philip Benzie ,  Alexander Doust ,  Niall MacCarthy

IPC: H05B33/08 ,  H01L51/52 ,  H01L27/32 ,  H01L51/50

CPC classification number: H01L51/5212 ,  H01L27/3244 ,  H01L51/5088 ,  H01L51/5209 ,  H01L2251/5361 ,  H01L2251/562 ,  H01L2251/564 ,  H05B33/0896 ,  Y02B20/36

Abstract: A method of increasing the lifetime of an ITO-free organic lighting system comprises: providing an organic lighting element having a substrate (12) bearing a set of anode electrode metal tracks (14), a conductive organic layer (16) over said metal tracks, an organic light emitting layer (18) over said conductive organic layer, and a cathode electrode layer (20) over said organic light emitting layer, wherein said metal comprises copper, and wherein said conductive organic layer comprises a doped conducting polymer, and driving the organic lighting element with a pulsed current drive. A biphasic pulse is employed having a first, on-phase with a defined current drive and a second, off-phase with a drive having a defined potential difference of zero volts across the lighting element. The anode electrode metal may have a higher work function than the cathode electrode layer. During said zero level drive portion the different work functions provide a reverse bias electric field within the organic lighting element.

公开(公告)号：US09461262B2

公开(公告)日：2016-10-04

申请号：US14385486

申请日：2013-03-13

Applicant: CAMBRIDGE DISPLAY TECHNOLOGY LIMITED

Inventor： Surama Malik ,  Julian Carter ,  Laurence Scullion ,  Colin Baker ,  Arne Fleissner ,  Jeremy Burroughes

IPC: H01L29/08 ,  H01L51/50 ,  H01L51/44 ,  H01L51/52 ,  H01L51/56 ,  H01L51/00

CPC classification number: H01L51/5088 ,  H01L51/0035 ,  H01L51/0037 ,  H01L51/0038 ,  H01L51/0039 ,  H01L51/441 ,  H01L51/445 ,  H01L51/5212 ,  H01L51/5275 ,  H01L51/56 ,  H01L2251/5361 ,  Y02E10/549

Abstract: This invention generally relates to an optoelectronic device and a method of fabricating such a device, and more particularly to an optoelectronic device comprising an anode layer, a semiconductive layer provided over the anode layer, and a cathode layer provided over the semiconductive layer, the anode layer comprising a plurality of electrically conductive tracks connected together and spaced apart from one another with gaps therebetween, the device further comprising a first and one or more further hole injection layers provided between the anode layer and the semiconductive layer and extending across said gaps, wherein the first hole injection layer has a conductivity greater than the conductivity of the one or more further hole injection layers.

Abstract translation: 本发明一般涉及一种制造这种器件的光电子器件及其制造方法，尤其涉及一种包括阳极层，设在阳极层上的半导体层和设置在半导体层上的阴极层的光电器件，阳极 层包括连接在一起并且彼此间隔开的多个导电轨道，该装置还包括设置在阳极层和半导体层之间并延伸穿过所述间隙的第一和一个或多个另外的空穴注入层，其中 第一空穴注入层的导电率大于一个或多个其它空穴注入层的导电率。

公开(公告)号：US20150361574A1

公开(公告)日：2015-12-17

申请号：US14832942

申请日：2015-08-21

Applicant: CAMBRIDGE DISPLAY TECHNOLOGY LIMITED

Inventor： Colin Baker ,  Aleksandra Rankov

IPC: C25D7/12 ,  H01L51/56 ,  C25D5/54 ,  C25D5/02 ,  C25D5/34 ,  H01L51/52 ,  H01L51/00

CPC classification number: C25D7/126 ,  C25D5/02 ,  C25D5/34 ,  C25D5/54 ,  H01L51/0021 ,  H01L51/5203 ,  H01L51/5212 ,  H01L51/56 ,  H01L2251/5361 ,  H01L2251/56

Abstract: We describe a lighting tile having a substrate bearing an electrode structure, the electrode structure comprising: a plurality of electrically conductive tracks disposed over said substrate; and an electrical connection region connecting to said plurality of tracks; wherein the height of said tracks tapers away from said connection region to compensate for a reduction in luminance from said lighting tile array from the electrical connection region which arises from a non-uniform voltage drop which appears along the tracks in use. Advantageously the tracks are fabricated by electroplating: then, as the rate of deposition is determined by the voltage drop along a track during plating, the height of the deposited tracks, and therefore their resistance, will match the profile required in operation to compensate for the reduction in luminance which would otherwise occur.

Abstract translation: 我们描述一种具有带有电极结构的衬底的照明瓦，该电极结构包括：设置在所述衬底上的多个导电轨道; 以及连接到所述多个轨道的电连接区域; 其中所述轨道的高度从所述连接区域逐渐变细，以补偿来自所述照明瓦片阵列的亮度从电连接区域的减小，该电连接区域是由沿使用轨道出现的不均匀的电压降引起的。 有利地，通过电镀制造轨道：然后，随着沉积速率由电镀期间沿着轨道的电压降确定，沉积的轨道的高度以及因此的电阻将与操作中所需的轮廓匹配以补偿 否则会发生亮度降低。