公开(公告)号：US11171313B2

公开(公告)日：2021-11-09

申请号：US16448918

申请日：2019-06-21

Applicant: Apple Inc.

Inventor： Yifan Zhang ,  Amin Salehi ,  Yun Liu ,  Paul S. Drzaic ,  Tae-Wook Koh ,  Chih Jen Yang ,  Bhadrinarayana Lalgudi Visweswaran ,  Chieh-Wei Chen

IPC: H01L51/52 ,  H01L27/32

Abstract: Display panel stack-up structures are described. In an embodiment, a display panel includes a substrate, a light source, and a multiple layer thin film encapsulation over the light source. In an embodiment, the display panel additionally includes an anti-reflection layer over the light source. In an embodiment, an incoherence layer is located within the thin film encapsulation.

公开(公告)号：US20200099012A1

公开(公告)日：2020-03-26

申请号：US16448918

申请日：2019-06-21

Applicant: Apple Inc.

Inventor： Yifan Zhang ,  Amin Salehi ,  Yun Liu ,  Paul S. Drzaic ,  Tae-Wook Koh ,  Chih Jen Yang ,  Bhadrinarayana Lalgudi Visweswaran ,  Chieh-Wei Chen

IPC: H01L51/52 ,  H01L27/32

Abstract: Display panel stack-up structures are described. In an embodiment, a display panel includes a substrate, a light source, and a multiple layer thin film encapsulation over the light source. In an embodiment, the display panel additionally includes an anti-reflection layer over the light source. In an embodiment, an incoherence layer is located within the thin film encapsulation.

公开(公告)号：US10707282B1

公开(公告)日：2020-07-07

申请号：US16000725

申请日：2018-06-05

Applicant: Apple Inc.

Inventor： Chih Jen Yang ,  Prashant Mandlik ,  Chia-Hao Chang ,  Chien-Chung Wang ,  Te-Hua Teng ,  Yu Cheng Chen

IPC: H01L27/32 ,  G06F3/041 ,  H01L51/52

Abstract: A display may have organic light-emitting diode pixels formed from thin-film circuitry. An organic layer including planarization layers and a pixel definition layer may overlap the thin-film circuitry. Thin-film encapsulation may overlap the organic layer. The thin-film encapsulation may be formed from an organic dielectric layer interposed between two layers of inorganic dielectric material. A strip of peripheral crack-stopper structures may run along an edge of the display and may surround the array of pixels. The crack-stopper structures may include parallel inorganic lines formed from a first inorganic layer such as an inorganic layer of the thin-film circuitry. A strip of the organic layer may overlap the parallel inorganic lines. The crack-stopper structures may have parallel tapered polymer lines. The polymer lines may be overlapped by a second inorganic dielectric layer formed from the inorganic material of the thin-film encapsulation layer.

公开(公告)号：US20150333293A1

公开(公告)日：2015-11-19

申请号：US14705364

申请日：2015-05-06

Applicant: Apple Inc.

Inventor： Stephen S. Poon ,  Chih Jen Yang ,  Damien S. Boesch ,  Bhadrinarayana L. Visweswaran

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

CPC classification number: H01L51/5253 ,  H01L27/32 ,  H01L51/56

Abstract: An electronic device may include a display having an array of organic light-emitting diodes formed on a substrate. An encapsulation layer may be formed over the array of organic light-emitting diodes to protect the organic light-emitting diodes from moisture and other contaminants. The encapsulation layer may include a transparent sheet of material interposed between upper and lower inorganic films. The reliability of the encapsulation layer is increased by dividing one or both of the inorganic films into multiple sub-layers. The sub-layers may have different densities and may be deposited in sequential steps. Additional moisture protection may be provided by forming a conformal thin-film coating over the organic light-emitting diodes. The conformal thin-film coating may be an aluminum oxide layer that is formed using atomic layer deposition techniques.

Abstract translation: 电子设备可以包括具有形成在基板上的有机发光二极管的阵列的显示器。 可以在有机发光二极管的阵列之上形成封装层，以保护有机发光二极管免受湿气和其它污染物的影响。 封装层可以包括介于上下无机膜之间的透明材料片。 通过将一个或两个无机膜分成多个子层来增加封装层的可靠性。 子层可以具有不同的密度并且可以按顺序沉积。 可以通过在有机发光二极管上形成共形薄膜涂层来提供额外的防潮保护。 保形薄膜涂层可以是使用原子层沉积技术形成的氧化铝层。

公开(公告)号：US09614183B2

公开(公告)日：2017-04-04

申请号：US14681834

申请日：2015-04-08

Applicant: Apple Inc.

Inventor： Zhen Zhang ,  Lalgudi Bhadrinarayana Visweswaran ,  Chih Jen Yang ,  Damien S. Boesch ,  Jae Won Choi ,  Paul S. Drzaic ,  Stephen S. Poon ,  Young Bae Park

IPC: H01L51/52 ,  H01L27/32 ,  H05B33/08 ,  G09G3/3208 ,  H01L51/56

CPC classification number: H01L51/5253 ,  G09G3/3208 ,  G09G2330/02 ,  G09G2330/04 ,  H01L27/3223 ,  H01L27/3244 ,  H01L27/3258 ,  H01L51/5256 ,  H01L51/56 ,  H01L2227/323 ,  H01L2251/566 ,  H01L2251/568 ,  H05B33/0896

Abstract: A display may have thin-film transistor (TFT) circuitry on a substrate. An array of organic light-emitting diodes may be formed on the thin-film transistor circuitry. The display may include inorganic brittle layers and organic and metal layers that are ductile and mechanically robust. To help prevent propagation of cracks and other defects along the edge of the display, the display may be provided with crack stop structures and crack detection circuitry. The crack detection circuitry may include one or more loops that are formed along the periphery of the display. The crack stop structures may include TFT/OLED structures formed in a staggered configuration. At least some of the brittle layers can be removed from the panel edge. An additional adhesion layer may also be formed directly on the substrate to help prevent inorganic layers from debonding from the surface of the substrate.

公开(公告)号：US20230092986A1

公开(公告)日：2023-03-23

申请号：US17802102

申请日：2021-02-02

Applicant: Apple Inc.

Inventor： Warren S. Rieutort-Louis ,  Meng-Huan Ho ,  Abbas Jamshidi Roudbari ,  Chih Jen Yang ,  Chin Wei Hsu ,  Jae Won Choi ,  Jean-Pierre S. Guillou ,  Ming Xu ,  Rui Liu ,  Yi Qiao ,  Yu-Wen Liu ,  Yuchi Che ,  Yue Cui

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

Abstract: An electronic device may include a display and an optical sensor formed underneath the display. A pixel removal region on the display may at least partially overlap with the sensor. The pixel removal region may include a plurality of non-pixel regions each of which is devoid of thin-film transistors. The plurality of non-pixel regions is configured to increase the transmittance of light through the display to the sensor. In addition to removing thin-film transistors in the pixel removal region, additional layers in the display stack-up may be removed. In particular, a cathode layer, polyimide layer, and/or substrate in the display stack-up may be patterned to have an opening in the pixel removal region. A polarizer may be bleached in the pixel removal region for additional transmittance gains. The cathode layer may be removed using laser ablation with a spot laser or blanket illumination.

公开(公告)号：US09818976B2

公开(公告)日：2017-11-14

申请号：US14705364

申请日：2015-05-06

Applicant: Apple Inc.

Inventor： Stephen S. Poon ,  Chih Jen Yang ,  Damien S. Boesch ,  Bhadrinarayana L. Visweswaran

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

CPC classification number: H01L51/5253 ,  H01L27/32 ,  H01L51/56

Abstract: An electronic device may include a display having an array of organic light-emitting diodes formed on a substrate. An encapsulation layer may be formed over the array of organic light-emitting diodes to protect the organic light-emitting diodes from moisture and other contaminants. The encapsulation layer may include a transparent sheet of material interposed between upper and lower inorganic films. The reliability of the encapsulation layer is increased by dividing one or both of the inorganic films into multiple sub-layers. The sub-layers may have different densities and may be deposited in sequential steps. Additional moisture protection may be provided by forming a conformal thin-film coating over the organic light-emitting diodes. The conformal thin-film coating may be an aluminum oxide layer that is formed using atomic layer deposition techniques.

公开(公告)号：US20160293884A1

公开(公告)日：2016-10-06

申请号：US14681834

申请日：2015-04-08

Applicant: Apple Inc.

Inventor： Zhen Zhang ,  Lalguidi Bhadrinarayana Visweswaran ,  Chih Jen Yang ,  Damien S. Boesch ,  Jae Won Choi ,  Paul S. Drzaic ,  Stephen S. Poon ,  Young Bae Park

IPC: H01L51/52 ,  H05B33/08 ,  G09G3/32 ,  H01L27/32 ,  H01L51/56

CPC classification number: H01L51/5253 ,  G09G3/3208 ,  G09G2330/02 ,  G09G2330/04 ,  H01L27/3223 ,  H01L27/3244 ,  H01L27/3258 ,  H01L51/5256 ,  H01L51/56 ,  H01L2227/323 ,  H01L2251/566 ,  H01L2251/568 ,  H05B33/0896

Abstract: A display may have thin-film transistor (TFT) circuitry on a substrate. An array of organic light-emitting diodes may be formed on the thin-film transistor circuitry. The display may include inorganic brittle layers and organic and metal layers that are ductile and mechanically robust. To help prevent propagation of cracks and other defects along the edge of the display, the display may be provided with crack stop structures and crack detection circuitry. The crack detection circuitry may include one or more loops that are formed along the periphery of the display. The crack stop structures may include TFT/OLED structures formed in a staggered configuration. At least some of the brittle layers can be removed from the panel edge. An additional adhesion layer may also be formed directly on the substrate to help prevent inorganic layers from debonding from the surface of the substrate.

Abstract translation: 显示器可以在衬底上具有薄膜晶体管（TFT）电路。 可以在薄膜晶体管电路上形成有机发光二极管阵列。 显示器可以包括无机脆性层和有机和金属层，其是延性和机械稳固的。 为了防止沿着显示器边缘的裂纹和其他缺陷的传播，显示器可以设置有裂纹停止结构和裂纹检测电路。 裂纹检测电路可以包括沿着显示器的周边形成的一个或多个环。 裂纹停止结构可以包括以交错构型形成的TFT / OLED结构。 可以从面板边缘去除至少一些脆性层。 还可以在基底上直接形成另外的粘合层，以帮助防止无机层从基底表面脱粘。