公开(公告)号：US20210036065A1

公开(公告)日：2021-02-04

申请号：US16688725

申请日：2019-11-19

Applicant: Universal Display Corporation

Inventor： Vadim Adamovich ,  Michael Stuart Weaver

IPC: H01L27/32 ,  H01L51/50

Abstract: The present invention relates to OLED devices and stacks for OLED devices that include a symmetric emissive-layer architecture. In one embodiment, the present invention relates to an emissive stack having three layers, wherein the top and bottom layers emit light in the same or similar color region while the middle layer emits light in a different color region than the other two layers. In such an embodiment, the three layers are in contact with each other with no other layers in between. The symmetric emissive-layer architecture of the present invention can be used to improve the color stability of OLED devices.

公开(公告)号：US10797112B2

公开(公告)日：2020-10-06

申请号：US16515171

申请日：2019-07-18

Applicant: Universal Display Corporation

Inventor： Michael Hack ,  Michael Stuart Weaver ,  Nicholas J. Thompson ,  Julia J. Brown

IPC: H01L29/08 ,  H01L27/32 ,  H01L51/50 ,  H01L51/52

Abstract: Embodiments of the disclosed subject matter provide a full-color pixel arrangement for a device, the full-color pixel arrangement including a plurality of sub-pixels, each having an emissive region of a first color, where the full-color pixel arrangement comprises emissive regions having exactly one emissive color that is a red-shifted color of a deep blue sub-pixel of the plurality of sub-pixels. Embodiments of the disclosed subject matter may also provide a full-color pixel arrangement for a device, the full-color pixel arrangement including a plurality of sub-pixels, each having an emissive region of a first color, where the full-color pixel arrangement comprises emissive regions having exactly one emissive color, and where the plurality of sub-pixels comprise a light blue sub-pixel, a deep blue sub-pixel, a red sub-pixel, and a green sub-pixel.

公开(公告)号：US20200212118A1

公开(公告)日：2020-07-02

申请号：US16723321

申请日：2019-12-20

Applicant: Universal Display Corporation

Inventor： Michael Hack ,  Michael Stuart Weaver ,  Nicholas J. Thompson ,  Vadim Adamovich

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

Abstract: Full-color pixel arrangements for use in devices such as OLED displays are provided, in which multiple sub-pixels are configured to emit different colors of light, with each sub-pixel having a different optical path length than some or all of the other sub-pixels within the pixel.

公开(公告)号：US20200176701A1

公开(公告)日：2020-06-04

申请号：US16781173

申请日：2020-02-04

Applicant: Universal Display Corporation

Inventor： Vadim Adamovich ,  Michael Stuart Weaver ,  Raymond Kwong

IPC: H01L51/50

Abstract: An organic light emitting diode (OLED) architecture in which efficient operation is achieved without requiring a blocking layer by locating the recombination zone close to the hole transport side of the emissive layer. Aryl-based hosts and Ir-based dopants with suitable concentrations result in an efficient phosphorescent OLED structure. Previously, blocking layer utilization in phosphorescent OLED architectures was considered essential to avoid exciton and hole leakage from the emissive layer, and thus keep the recombination zone inside the emissive layer to provide high device efficiency and a pure emission spectrum.

公开(公告)号：US10580832B2

公开(公告)日：2020-03-03

申请号：US16395639

申请日：2019-04-26

Applicant: Universal Display Corporation

Inventor： Michael Hack ,  Michael Stuart Weaver ,  Nicholas J. Thompson ,  Vadim Adamovich

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

Abstract: Full-color pixel arrangements for use in devices such as OLED displays are provided, in which multiple sub-pixels are configured to emit different colors of light, with each sub-pixel having a different optical path length than some or all of the other sub-pixels within the pixel.

公开(公告)号：US10374017B2

公开(公告)日：2019-08-06

申请号：US15373090

申请日：2016-12-08

Applicant: Universal Display Corporation

Inventor： Michael Hack ,  Michael Stuart Weaver ,  Julia J. Brown ,  Xin Xu

IPC: H01L51/50 ,  H01L27/32 ,  H01L51/00 ,  H01L51/56

Abstract: Arrangements of pixel components that allow for full-color devices, while using emissive devices that use blue color altering layers in conjunction with blue emissive regions, that emit at not more than two colors, and/or that use limited number of color altering layers, are provided. Devices disclosed herein also may be achieved using simplified fabrication techniques compared to conventional side-by-side arrangements, because fewer masking steps may be required.

公开(公告)号：US10304906B2

公开(公告)日：2019-05-28

申请号：US15479947

申请日：2017-04-05

Applicant: Universal Display Corporation

Inventor： Michael Hack ,  Michael Stuart Weaver ,  Nicholas J. Thompson ,  Vadim Adamovich

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

Abstract: Full-color pixel arrangements for use in devices such as OLED displays are provided, in which multiple sub-pixels are configured to emit different colors of light, with each sub-pixel having a different optical path length than some or all of the other sub-pixels within the pixel.

公开(公告)号：US10263050B2

公开(公告)日：2019-04-16

申请号：US15812229

申请日：2017-11-14

Applicant: Universal Display Corporation

Inventor： Michael Hack ,  Michael Stuart Weaver ,  William T. Mayweather, III ,  Julia J. Brown ,  Nicholas J. Thompson

IPC: H01L27/32 ,  H01L33/00

Abstract: A hybrid pixel arrangement for a full-color display is provided, which includes an inorganic LED in at least one sub-pixel, and an organic emissive stack in at least one other sub-pixel. In an embodiment, a first sub-pixel is configured to emit a first color, and includes an inorganic LED, a second sub-pixel is configured to emit a second color, and includes a first organic emissive stack configured to emit an initial color different from the first color. A third sub-pixel is configured to emit a third color different from the initial color.

公开(公告)号：US10192936B1

公开(公告)日：2019-01-29

申请号：US16174594

申请日：2018-10-30

Applicant: UNIVERSAL DISPLAY CORPORATION

Inventor： Michael Hack ,  Julia J. Brown ,  Michael Stuart Weaver ,  Peter Levermore ,  Woo-Young So

IPC: F21V9/00 ,  H01L27/32 ,  H01L51/50 ,  F21K9/00 ,  H01L51/00 ,  F21Y113/13 ,  F21Y115/10

Abstract: A device that may be used as a multi-color pixel is provided. The device has a first organic light emitting device, a second organic light emitting device, a third organic light emitting device, and a fourth organic light emitting device. The device may be a pixel of a display having four sub-pixels. The first device may emit red light, the second device may emit green light, the third device may emit light blue light and the fourth device may emit deep blue light.

公开(公告)号：US20140327709A1

公开(公告)日：2014-11-06

申请号：US14333756

申请日：2014-07-17

Applicant: Universal Display Corporation

Inventor： Michael Hack ,  Michael Stuart Weaver ,  Xin Xu ,  Woo-Young So ,  Julia J. Brown

IPC: G09G3/32

CPC classification number: G09G3/3208 ,  G09G2300/0452 ,  H01L27/3213

Abstract: Arrangements of pixel components that allow driving three or less of four or more sub-pixels to emit an original color signal are disclosed. A first projection of the original color signal may be projected onto the two sub-pixel's color space. The first projection may then be projected onto a second projection corresponding to the color space of a third pixel. The third pixel may be driven based on the second projection only two of the remaining at least three sub-pixels may be driven based on the third pixel being driven.

Abstract translation: 公开了允许驱动三个或更少的四个或更多个子像素发射原始颜色信号的像素分量的布置。 可以将原始颜色信号的第一投影投影到两个子像素的颜色空间上。 然后可以将第一投影投影到对应于第三像素的颜色空间的第二投影上。 可以基于第二投影来驱动第三像素，可以基于被驱动的第三像素来驱动剩余的至少三个子像素中的两个。