公开(公告)号：US11211587B2

公开(公告)日：2021-12-28

申请号：US16521837

申请日：2019-07-25

Applicant: Apple Inc.

Inventor： Kwang Ohk Cheon ,  Aleksandr N. Polyakov ,  Chen-Yue Li ,  Chuan-Jung Lin ,  KiBeom Kim ,  Nai-Chih Kao ,  Rui Liu ,  Wendi Chang

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

Abstract: A display may have an array of organic light-emitting diode (OLED) 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 cross-talk, the thickness of at least one of the OLED layers may be reduced. To maintain the optical cavity of the pixels, transparent optical spacer structures may be inserted. Alternatively, the thickness of the anodes can be increased. To accommodate a common prime layer within the OLED layers, the optical spacers or anodes may be separately patterned to have different thicknesses. Grating structures and photonic crystal structures may be embedded as part of the optical spacers to help control emission at selected viewing angles.

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：US11922887B1

公开(公告)日：2024-03-05

申请号：US17368472

申请日：2021-07-06

Applicant: Apple Inc.

Inventor： Shinya Ono ,  Chin-Wei Lin ,  Chuan-Jung Lin ,  Gihoon Choo ,  Hassan Edrees ,  Hei Kam ,  Jung Yen Huang ,  Pei-En Chang ,  Rungrot Kitsomboonloha ,  Szu-Hsien Lee ,  Zino Lee

IPC: G09G3/3275 ,  H10K59/121 ,  H10K59/126 ,  H10K59/131

CPC classification number: G09G3/3275 ,  H10K59/1213 ,  H10K59/1216 ,  H10K59/126 ,  H10K59/131 ,  G09G2320/0214

Abstract: A display may include an array of pixels. Each pixel in the array includes an organic light-emitting diode coupled to associated thin-film transistors. The diode may be coupled to drive transistor circuitry, a data loading transistor, and emission transistors. The drive transistor circuitry may include at least two transistor portions connected in series. The data loading transistor has a drain region connected to a data line and a source region connected directly to the drive transistor circuitry. The data line may be connected to and overlap the drain region of the data loading transistor. The data line and the source region of the data loading transistor are non-overlapping to reduce row-to-row crosstalk.

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：US20200035951A1

公开(公告)日：2020-01-30

申请号：US16521837

申请日：2019-07-25

Applicant: Apple Inc.

Inventor： Kwang Ohk Cheon ,  Aleksandr N. Polyakov ,  Chen-Yue Li ,  Chuan-Jung Lin ,  KiBeom Kim ,  Nai-Chih Kao ,  Rui Liu ,  Wendi Chang

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

Abstract: A display may have an array of organic light-emitting diode (OLED) 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 cross-talk, the thickness of at least one of the OLED layers may be reduced. To maintain the optical cavity of the pixels, transparent optical spacer structures may be inserted. Alternatively, the thickness of the anodes can be increased. To accommodate a common prime layer within the OLED layers, the optical spacers or anodes may be separately patterned to have different thicknesses. Grating structures and photonic crystal structures may be embedded as part of the optical spacers to help control emission at selected viewing angles.