公开(公告)号：US10381381B1

公开(公告)日：2019-08-13

申请号：US15274546

申请日：2016-09-23

Applicant: Apple Inc.

Inventor： Minhyuk Choi ,  Bhadrinarayana Lalgudi Visweswaran ,  Cheng Chen ,  Chin-Wei Lin ,  Meng-Huan Ho ,  Rui Liu ,  Shih Chang Chang ,  Soojin Park ,  Sarfaraz Moh ,  Jungmin Lee ,  John Z. Zhong

IPC: H01L27/12 ,  H01L31/12

Abstract: A display may have an array of pixels with light-emitting diodes that emit light to form images. The display may have a substrate with thin-film transistor circuitry for supplying signals to the light-emitting diodes. Anodes may be formed on the thin-film transistor circuitry, emissive material may be formed on the anodes, and a cathode layer may overlap the anodes. During operation, currents may flow between the anodes and the cathode layer to illuminate the diodes. An array of electrical components such as an array of light sensors in an integrated circuit may be mounted under the substrate. An array of corresponding light transmitting windows may be formed in the display each of which may allow light to pass through the display to a corresponding one of the light sensors. Light transmitting windows may be formed by patterning the cathode layer and supplying the windows with antireflection layers.

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：US20220388276A1

公开(公告)日：2022-12-08

申请号：US17716911

申请日：2022-04-08

Applicant: Apple Inc.

Inventor： Xiaowei Wu ,  Hoon Sik Kim ,  Yuxi Zhao ,  Terry C Lam ,  Yasmin F Afsar ,  Chang-Chia Huang ,  Bhadrinarayana Lalgudi Visweswaran ,  Supriya Goyal ,  Paul S Drzaic

IPC: B32B7/12 ,  H05K5/00 ,  H05K5/03 ,  C09J9/00 ,  C09J7/00

Abstract: In devices with flexible displays, multilayer adhesive stacks may be included. A multilayer adhesive may attach a flexible display panel to the display cover layer in an electronic device. Including multiple layers of adhesive in the adhesive stack (as opposed to a single layer) provides more degrees of freedom for the tuning and optimization of the properties of the adhesive stack. The multilayer adhesive stack therefore has better performance than if only a single layer of adhesive is used. The multilayer adhesive stack may include one or more layers of soft adhesive, hard adhesive, hard elastomer, hard polymer, and/or glass to optimize the mechanical and optical performance of the multilayer adhesive stack. Soft adhesive layers may be included to optimize lateral decoupling (e.g., during folding and unfolding) of the adhesive stack. Harder layers may be included to provide rigidity and prevent denting during impact events.

公开(公告)号：US11049445B2

公开(公告)日：2021-06-29

申请号：US15975390

申请日：2018-05-09

Applicant: Apple Inc.

Inventor： Warren S. Rieutort-Louis ,  Shyuan Yang ,  Tsung-Ting Tsai ,  Cheng-Ho Yu ,  Jae Won Choi ,  Bhadrinarayana Lalgudi Visweswaran ,  Abbas Jamshidi Roudbari ,  Ting-Kuo Chang

IPC: G09G3/3216 ,  H01L27/32 ,  G09G3/3266 ,  G09G3/3283 ,  G09G3/3275 ,  G09G3/3225 ,  H01L51/52

Abstract: A display may have rows and columns of pixels that form an active area for displaying images. A display driver integrated circuit may provide multiplexed data signals to demultiplexer circuitry in the display. The demultiplexer circuitry may demultiplex the data signals and provide the demultiplexed data signals to the pixels on data lines. Gate lines may control the loading of the data signals into the pixels. The display may have a length dimension and a width dimension that is shorter than the length dimension. The data lines may extend parallel to the width dimension and the gate lines may extend parallel to the length dimension such that there are more data lines than gate lines in the display. A notch that is free of pixels may extend into the active area. Data lines extending parallel to the width dimension of the display may be routed around the notch.

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：US20190043418A1

公开(公告)日：2019-02-07

申请号：US15975390

申请日：2018-05-09

Applicant: Apple Inc.

Inventor： Warren S. Rieutort-Louis ,  Shyuan Yang ,  Tsung-Ting Tsai ,  Cheng-Ho Yu ,  Jae Won Choi ,  Bhadrinarayana Lalgudi Visweswaran ,  Abbas Jamshidi Roudbari ,  Ting-Kuo Chang

IPC: G09G3/3216 ,  G09G3/3283 ,  G09G3/3266 ,  H01L27/32

Abstract: A display may have rows and columns of pixels that form an active area for displaying images. A display driver integrated circuit may provide multiplexed data signals to demultiplexer circuitry in the display. The demultiplexer circuitry may demultiplex the data signals and provide the demultiplexed data signals to the pixels on data lines. Gate lines may control the loading of the data signals into the pixels. The display may have a length dimension and a width dimension that is shorter than the length dimension. The data lines may extend parallel to the width dimension and the gate lines may extend parallel to the length dimension such that there are more data lines than gate lines in the display. A notch that is free of pixels may extend into the active area. Data lines extending parallel to the width dimension of the display may be routed around the notch.

公开(公告)号：US20180315357A1

公开(公告)日：2018-11-01

申请号：US15882908

申请日：2018-01-29

Applicant: Apple Inc.

Inventor： Donghee Nam ,  Bhadrinarayana Lalgudi Visweswaran ,  Cheng Chen ,  Meng-Huan Ho ,  Nathan K. Gupta ,  Rui Liu ,  Sebastian Knitter ,  Sudirukkuge T. Jinasundera ,  Tsung-Ting Tsai ,  Weibo Cheng

IPC: G09F13/22 ,  H01L51/52 ,  H01L27/32

Abstract: An electronic device may be provided with a display. The display may have a display cover layer. The display may have an active area with pixels and an inactive area with dummy pixels. The dummy pixels may have structures that are optically matched to the pixels so that the dummy pixels and pixels have similar visual appearances when the display is off. An optical window may be formed in the inactive area. A light-based component such as an ambient light sensor, proximity sensor, or image sensor may be mounted in the electronic device in alignment with the optical window. A polarizer layer may overlap the active and inactive areas of the display. An opening in the polarizer or a bleached unpolarized portion of the polarizer may be aligned with the optical window.

公开(公告)号：US20180174505A1

公开(公告)日：2018-06-21

申请号：US15895248

申请日：2018-02-13

Applicant: Apple Inc.

Inventor： Prashant Mandlik ,  Bhadrinarayana Lalgudi Visweswaran ,  Izhar Z Ahmed ,  Zhen Zhang ,  Tsung-Ting Tsai ,  Ki Yeol Byun ,  Yu Cheng Chen ,  Sungki Lee ,  Mohammad Hajirostam ,  Sinan Alousi

IPC: G09G3/32 ,  G01L1/22 ,  G11C19/28 ,  H01L27/32 ,  H01L51/00

CPC classification number: G09G3/32 ,  G01L1/2281 ,  G09G3/3266 ,  G09G3/3677 ,  G09G2300/043 ,  G09G2310/0286 ,  G09G2330/12 ,  G09G2380/02 ,  G11C19/28 ,  H01L27/3225 ,  H01L27/3276 ,  H01L51/0031 ,  H01L51/0097 ,  H01L2251/5338

Abstract: An electronic device may have a flexible display such as an organic light-emitting diode display. A strain sensing resistor may be formed on a bent tail portion of the flexible display to gather strain measurements. Resistance measurement circuitry in a display driver integrated circuit may make resistance measurements on the strain sensing resistor and a temperature compensation resistor to measure strain. A crack detection line may be formed from an elongated pair of traces that are coupled at their ends to form a loop. The crack detection line may run along a peripheral edge of the flexible display. Crack detection circuitry may monitor the resistance of the crack detection line to detect cracks. The crack detection circuitry may include switches that adjust the length of the crack detection line and thereby allow resistances to be measured for different segments of the line.