公开(公告)号：US11910654B1

公开(公告)日：2024-02-20

申请号：US17395381

申请日：2021-08-05

Applicant: Apple Inc.

Inventor： Po-Chun Yeh ,  Jiun-Jye Chang ,  Doh-Hyoung Lee ,  Caleb Coburn ,  Niva A. Ran ,  Ching-Sang Chuang ,  Themistoklis Afentakis ,  Chuan-Jung Lin ,  Jung Yen Huang ,  Lei Yuan

IPC: H10K59/122 ,  G09G3/3291 ,  H10K59/35 ,  H10K71/00

CPC classification number: H10K59/122 ,  G09G3/3291 ,  H10K59/35 ,  H10K71/00 ,  H10K71/621 ,  G09G2320/0214

Abstract: An organic light-emitting diode (OLED) display may have an array of organic light-emitting diode pixels that each have OLED layers interposed between a cathode and an anode. Voltage may be applied to the anode of each pixel to control the magnitude of emitted light. The conductivity of the OLED layers may allow leakage current to pass between neighboring anodes in the display. To reduce leakage current and the accompanying cross-talk, the display may include active and/or passive leakage-mitigating structures. The passive leakage-mitigating structures may have an undercut that causes discontinuities in the overlying OLED layers. Active leakage-mitigating structures may include a conductive layer (e.g., a conductive ring) that drains leakage current to ground. Alternatively, the active leakage-mitigating structures may include a gate electrode modulator with a variable voltage that stops the current flow laterally.

公开(公告)号：US20240210995A1

公开(公告)日：2024-06-27

申请号：US18483653

申请日：2023-10-10

Applicant: Apple Inc.

Inventor： Prashant Mandlik ,  Bhadrinarayana Lalgudi Visweswaran ,  Mahendra Chhabra ,  Chia-Hao Chang ,  Shiyi Liu ,  Siddharth Harikrishna Mohan ,  Zhen Zhang ,  Han-Chieh Chang ,  Yi Qiao ,  Yue Cui ,  Tyler R Kakuda ,  Michael Vosgueritchian ,  Sudirukkuge T. Jinasundera ,  Warren S Rieutort-Louis ,  Tsung-Ting Tsai ,  Jae Won Choi ,  Jiun-Jye Chang ,  Jean-Pierre S Guillou ,  Rui Liu ,  Po-Chun Yeh ,  Chieh Hung Yang ,  Ankit Mahajan ,  Takahide Ishii ,  Pei-Ling Lin ,  Pei Yin ,  Gwanwoo Park ,  Markus Einzinger ,  Martijn Kuik ,  Abhijeet S Bagal ,  Kyounghwan Kim ,  Jonathan H Beck ,  Chiang-Jen Hsiao ,  Chih-Hao Kung ,  Chih-Lei Chen ,  Chih-Yu Chung ,  Chuan-Jung Lin ,  Jung Yen Huang ,  Kuan-Chi Chen ,  Shinya Ono ,  Wei Jung Hsieh ,  Wei-Chieh Lin ,  Yi-Pu Chen ,  Yuan Ming Chiang ,  An-Di Sheu ,  Chi-Wei Chou ,  Chin-Fu Lee ,  Ko-Wei Chen ,  Kuan-Yi Lee ,  Weixin Li ,  Shin-Hung Yeh ,  Shyuan Yang ,  Themistoklis Afentakis ,  Asli Sirman ,  Baolin Tian ,  Han Liu

IPC: G06F1/16 ,  H10K59/131 ,  H10K59/40 ,  H10K77/10

CPC classification number: G06F1/1652 ,  H10K59/131 ,  H10K59/40 ,  H10K77/111 ,  H10K2102/311

Abstract: A display may have a stretchable portion with hermetically sealed rigid pixel islands. A flexible interconnect region may be interposed between the hermetically sealed rigid pixel islands. The hermetically sealed rigid pixel islands may include organic light-emitting diode (OLED) pixels. A conductive cutting structure may have an undercut that causes a discontinuity in a conductive OLED layer to mitigate lateral leakage. The conductive cutting structure may also be electrically connected to a cathode for the OLED pixels and provide a cathode voltage to the cathode. First and second inorganic passivation layers may be formed over the OLED pixels. Multiple discrete portions of an organic inkjet printed layer may be interposed between the first and second inorganic passivation layers.

公开(公告)号：US20230171988A1

公开(公告)日：2023-06-01

申请号：US17968280

申请日：2022-10-18

Applicant: Apple Inc.

Inventor： Prashant Mandlik ,  Bhadrinarayana Lalgudi Visweswaran ,  Ankit Mahajan ,  Chia-Hao Chang ,  Christopher E Glazowski ,  David L Wei ,  Hui Lu ,  Takahide Ishii ,  Themistoklis Afentakis ,  Han Liu ,  Cheng-Chih Hsieh ,  Asli Sirman ,  Shih Chang Chang ,  Ko-Wei Chen ,  Shang-Chih Lin ,  Tsung-Ting Tsai ,  Jae Won Choi ,  Abbas Jamshidi Roudbari ,  Ting-Kuo Chang ,  Jean-Pierre S Guillou

IPC: H01L51/52 ,  H01L27/32

CPC classification number: H01L51/5253 ,  H01L51/5262 ,  H01L51/5293 ,  H01L27/323

Abstract: An electronic device may have a display such as an organic light-emitting diode display. The organic light-emitting diode (OLED) display may have an array of organic light-emitting diode pixels that each have OLED layers interposed between a cathode and an anode. A first passivation layer, a first planarization layer, and a second passivation layer may be formed over the cathode. The first and second passivation layers may be formed from inorganic material. A second planarization layer may be formed over the second passivation layer between the second passivation layer and a polarizer. The second planarization layer may planarize the polarizer at the edges of the active area of the display where the polarizer would otherwise have a steep taper. Planarizing the polarizer in this way mitigates undesirable secondary reflections off of the polarizer. The first and second planarization layers may be formed from organic material.