公开(公告)号：US10546796B2

公开(公告)日：2020-01-28

申请号：US16077185

申请日：2017-02-10

Applicant: Apple Inc.

Inventor： Hsin-Hua Hu ,  Jaein Choi ,  James E. Pedder ,  Ion Bita ,  Hairong Tang ,  Chin Wei Hsu ,  Sandeep Chalasani ,  Chih-Lei Chen ,  Sunggu Kang ,  Shinya Ono ,  Jung Yen Huang ,  Lun Tsai

IPC: H01L23/48 ,  H01L23/31 ,  H01L23/00 ,  H01L25/075 ,  H01L25/16

Abstract: Micro LED and microdriver chip integration schemes are described. In an embodiment a microdriver chip includes a plurality of trenches formed in a bottom surface of the microdriver chip, with each trench surrounding a conductive stud extending below a bottom surface of the microdriver chip body. Integration schemes are additionally described for providing electrical connection to conductive terminal contacts and micro LEDs bonded to a display substrate and adjacent to a microdriver chip.

公开(公告)号：US20190115274A1

公开(公告)日：2019-04-18

申请号：US16077185

申请日：2017-02-10

Applicant: Apple Inc.

Inventor： Hsin-Hua Hu ,  Jaein Choi ,  James E. Pedder ,  Ion Bita ,  Hairong Tang ,  Chin Wei Hsu ,  Sandeep Chalasani ,  Chih-Lei Chen ,  Sunggu Kang ,  Shinya Ono ,  Jung Yen Huang ,  Lun Tsai

IPC: H01L23/31 ,  H01L23/00 ,  H01L25/075 ,  H01L25/16

Abstract: Micro LED and microdriver chip integration schemes are described. In an embodiment a microdriver chip includes a plurality of trenches formed in a bottom surface of the microdriver chip, with each trench surrounding a conductive stud extending below a bottom surface of the microdriver chip body. Integration schemes are additionally described for providing electrical connection to conductive terminal contacts and micro LEDs bonded to a display substrate and adjacent to a microdriver chip.

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：US20230080552A1

公开(公告)日：2023-03-16

申请号：US17826416

申请日：2022-05-27

Applicant: Apple Inc.

Inventor： Kuan-Yi Lee ,  Takahide Ishii ,  Prashant Mandlik ,  Chih-Lei Chen ,  Bhadrinarayana Lalgudi Visweswaran ,  Ankit Mahajan

IPC: H01L27/32 ,  H01L51/52

Abstract: An organic light-emitting diode (OLED) display may have an array of pixels that each have OLED layers interposed between a cathode and an anode. The display may also include a planarization layer that is deposited using inkjet printing. To mitigate the need for dam structures to prevent overflow of the planarization layer during inkjet printing, capillary-flow-inducing structures may be included in the inactive area of the display. The topology of the capillary-flow-inducing structures may be propagated to a passivation layer such that an upper surface of the passivation layer has a similar topology as the capillary-flow-inducing structures. The planarization layer therefore undergoes capillary flow when deposited on the upper surface of the passivation layer. The capillary-flow-inducing structures may be formed from dots, rectangular strips, or trapezoidal strips. The capillary-flow-inducing structures may be formed from the same material as spacers in the active area or using another layer in the display.

公开(公告)号：US10658441B2

公开(公告)日：2020-05-19

申请号：US16114039

申请日：2018-08-27

Applicant: Apple Inc.

Inventor： Kwang Ohk Cheon ,  Cheng Chen ,  Chien Lu ,  Chih-Lei Chen ,  Chin Wei Hsu ,  Hui Lu ,  KiBeom Kim ,  Lun Tsai ,  Meng-Huan Ho ,  Nai-Chih Kao ,  Pei-Ling Lin ,  Rui Liu ,  Shan-Jen Yu ,  Wendi Chang ,  Yusuke Fujino

IPC: H01L27/32 ,  H01L51/50 ,  G09G3/3225 ,  H01L51/56 ,  H01L51/52

Abstract: A display may have an array of pixels formed from organic light-emitting diodes and thin-film transistor circuitry. Each pixel may include organic layers interposed between an anode and a cathode. The organic layers may emit out-coupled light that escapes the display and waveguided light that is waveguided within the organic layers. A reflector may be placed at the edge of the organic layers to reflect the waveguided light out of the display. The reflector may be located within a pixel definition layer and may be formed from metal or may be formed from one or more interfaces between high-refractive-index material and low-refractive-index material. The reflector may be formed from an extended portion of the pixel anode. The reflector may be formed from light-reflecting particles that are suspended in the pixel definition layer.

公开(公告)号：US20190067394A1

公开(公告)日：2019-02-28

申请号：US16114039

申请日：2018-08-27

Applicant: Apple Inc.

Inventor： Kwang Ohk Cheon ,  Cheng Chen ,  Chien Lu ,  Chih-Lei Chen ,  Chin Wei Hsu ,  Hui Lu ,  KiBeom Kim ,  Lun Tsai ,  Meng-Huan Ho ,  Nai-Chih Kao ,  Pei-Ling Lin ,  Rui Liu ,  Shan-Jen Yu ,  Wendi Chang ,  Yusuke Fujino

IPC: H01L27/32 ,  H01L51/50 ,  H01L51/52 ,  H01L51/56 ,  G09G3/3225

Abstract: A display may have an array of pixels formed from organic light-emitting diodes and thin-film transistor circuitry. Each pixel may include organic layers interposed between an anode and a cathode. The organic layers may emit out-coupled light that escapes the display and waveguided light that is waveguided within the organic layers. A reflector may be placed at the edge of the organic layers to reflect the waveguided light out of the display. The reflector may be located within a pixel definition layer and may be formed from metal or may be formed from one or more interfaces between high-refractive-index material and low-refractive-index material, The reflector may be formed from an extended portion of the pixel anode. The reflector may be formed from light-reflecting particles that are suspended in the pixel definition layer.