公开(公告)号：WO2020028166A1

公开(公告)日：2020-02-06

申请号：PCT/US2019/043632

申请日：2019-07-26

Applicant: APPLE INC.

Inventor： CHEON, Kwang, Ohk ,  POLYAKOV, Aleksandr, N. ,  LI, Chen-Yue ,  LIN, Chuang-Jung ,  KIM, Kibeom ,  KAO, Nai-Chih ,  LIU, Rui ,  CHANG, Wendi

IPC: H01L51/52

Abstract: A display may have an array of organic light-emitting diode (OLED) pixels (22-1, 22-2) that each have OLED layers (45) interposed between a cathode (54) and an anode (42). Voltage may be applied to the anode (42-1, 42-2) of each pixel (22-1, 22-2) to control the magnitude of emitted light (56). The conductivity of the OLED layers (45) may allow leakage current to pass between neighboring anodes (42-1, 42-2) in the display. To reduce leakage current and cross-talk, the thickness of at least one of the OLED layers (45) may be reduced. To maintain the optical cavity (d opt) of the pixels, transparent optical spacer structures (100-1, 100-2) may be inserted. Alternatively, the thickness of the anodes (42) can be increased. To accommodate a common prime layer within the OLED layers (45), the optical spacers (100-1, 100-2) or anodes (42-1, 42-2) may be separately patterned to have different thicknesses. Grating structures (71) and photonic crystal structures (1250) may be embedded as part of the optical spacers (100) to help control emission at selected viewing angles.

公开(公告)号：WO2018212960A1

公开(公告)日：2018-11-22

申请号：PCT/US2018/029772

申请日：2018-04-27

Applicant: APPLE INC.

Inventor： CHOI, Jaein ,  LIN, Andrew ,  LO, Cheuk Chi ,  HUANG, Chun-Yao ,  WONG, Gloria ,  TANG, Hairong ,  YAMAMOTO, Hitoshi ,  PEDDER, James E. ,  KIM, Kibeom ,  CHEON, Kwang Ohk ,  YUAN, Lei ,  SLOOTSKY, Michael ,  LIU, Rni ,  MOLESA, Steven E. ,  KANG, Sunggu ,  CHANG, Wendi ,  TANG, Chun-Ming ,  CHEN, Cheng ,  KNEZ, Ivan ,  DORJGOTOV, Enkhamgalan ,  CARBONE, Giovanni ,  MYHRE, Graham B. ,  LEE, Jungmin

IPC: H01L27/32

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 in a display, the pixel definition layer may disrupt continuity of the OLED layers. The pixel definition layer may have a steep sidewall, a sidewall with an undercut, or a sidewall surface with a plurality of curves to disrupt continuity of the OLED layers. A control gate that is coupled to a bias voltage and covered by gate dielectric may be used to form an organic thin-film transistor that shuts the leakage current channel between adjacent anodes on the display.

公开(公告)号：WO2018212960A8

公开(公告)日：2018-11-22

申请号：PCT/US2018/029772

申请日：2018-04-27

Applicant: APPLE INC.

Inventor： CHOI, Jaein ,  LIN, Andrew ,  LO, Cheuk Chi ,  HUANG, Chun-Yao ,  WONG, Gloria ,  TANG, Hairong ,  YAMAMOTO, Hitoshi ,  PEDDER, James E. ,  KIM, Kibeom ,  CHEON, Kwang Ohk ,  YUAN, Lei ,  SLOOTSKY, Michael ,  LIU, Rui ,  MOLESA, Steven E. ,  KANG, Sunggu ,  CHANG, Wendi ,  TANG, Chun-Ming ,  CHEN, Cheng ,  KNEZ, Ivan ,  DORJGOTOV, Enkhamgalan ,  CARBONE, Giovanni ,  MYHRE, Graham B. ,  LEE, Jungmin

IPC: H01L27/32

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 in a display, the pixel definition layer may disrupt continuity of the OLED layers. The pixel definition layer may have a steep sidewall, a sidewall with an undercut, or a sidewall surface with a plurality of curves to disrupt continuity of the OLED layers. A control gate that is coupled to a bias voltage and covered by gate dielectric may be used to form an organic thin-film transistor that shuts the leakage current channel between adjacent anodes on the display.

公开(公告)号：EP3610513A1

公开(公告)日：2020-02-19

申请号：EP18724702.8

申请日：2018-04-27

Applicant: Apple Inc.

Inventor： CHOI, Jaein ,  LIN, Andrew ,  LO, Cheuk Chi ,  HUANG, Chun-Yao ,  WONG, Gloria ,  TANG, Hairong ,  YAMAMOTO, Hitoshi ,  PEDDER, James E. ,  KIM, Kibeom ,  CHEON, Kwang Ohk ,  YUAN, Lei ,  SLOOTSKY, Michael ,  LIU, Rni ,  MOLESA, Steven E. ,  KANG, Sunggu ,  CHANG, Wendi ,  TANG, Chun-Ming ,  CHEN, Cheng ,  KNEZ, Ivan ,  DORJGOTOV, Enkhamgalan ,  CARBONE, Giovanni ,  MYHRE, Graham B. ,  LEE, Jungmin

IPC: H01L27/32