公开(公告)号：US20240278533A1

公开(公告)日：2024-08-22

申请号：US18653598

申请日：2024-05-02

Applicant: Apple Inc.

Inventor： Xiaowei Wu ,  Farzad Khademolhosseini ,  Digvijay Raorane ,  Chyi-Huey J Yeh ,  Yuxi Zhao ,  Terry C Lam ,  Bhadrinarayana Lalgudi Visweswaran ,  Supriya Goyal ,  Yasmin F Afsar ,  Paul S Drzaic ,  Wei Lv ,  Wenyong Zhu ,  Sijun Niu ,  Masoud Ghorbani Moghaddam

IPC: B32B7/025 ,  B32B3/26 ,  B32B5/02 ,  B32B7/023 ,  B32B7/12 ,  B32B9/00 ,  B32B9/04 ,  B32B27/08 ,  B32B27/36 ,  C09J7/25 ,  C09J9/00 ,  H01L25/075 ,  H10K59/80

CPC classification number: B32B7/025 ,  B32B3/263 ,  B32B5/028 ,  B32B7/023 ,  B32B7/12 ,  B32B9/005 ,  B32B9/047 ,  B32B27/08 ,  B32B27/36 ,  C09J7/255 ,  C09J9/00 ,  B32B2255/10 ,  B32B2260/021 ,  B32B2260/046 ,  B32B2307/204 ,  B32B2307/4026 ,  B32B2307/418 ,  B32B2307/7376 ,  B32B2457/20 ,  C09J2301/208 ,  C09J2301/21 ,  C09J2301/312 ,  C09J2467/006 ,  H01L25/0753 ,  H10K59/871

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：US20240194106A1

公开(公告)日：2024-06-13

申请号：US18476892

申请日：2023-09-28

Applicant: Apple Inc.

Inventor： Shyuan Yang ,  Cheng-Chih Hsieh ,  Jonathan H. Beck ,  Yuchi Che ,  Tsung-Ting Tsai ,  Warren S. Rieutort-Louis ,  Abbas Jamshidi Roudbari ,  Ting-Kuo Chang ,  Shih Chang Chang ,  Bhadrinarayana Lalgudi Visweswaran ,  Jae Won Choi ,  Kyounghwan Kim

IPC: G09G3/20 ,  H10K59/131

CPC classification number: G09G3/20 ,  H10K59/131 ,  G09G2300/0452 ,  G09G2300/0465 ,  G09G2320/0233 ,  G09G2320/0242

Abstract: A light emitter that operates through a display may cause display artifacts, even when the light emitter operates using non-visible wavelengths. To mitigate artifacts caused by a light emitter operating through a display, the display may have a higher density of thin-film transistor sub-pixels than emissive sub-pixels. This allows for a region in the display to include emissive sub-pixels but be free of thin-film transistor sub-pixels. The light emitter may operate through this region in the display. Additionally, to reduce the amount of space occupied in the inactive area of a display by gate driver circuitry, at least a portion of the gate driver circuitry may be positioned in the active area of the display. To accommodate the gate driver circuitry, emissive sub-pixels may be laterally shifted relative to corresponding thin-film transistor sub-pixels.

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.

公开(公告)号：US11087670B2

公开(公告)日：2021-08-10

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 ,  H01L51/00 ,  H01L27/32 ,  G09G3/3266 ,  G09G3/36 ,  G01L1/22 ,  G11C19/28

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.

公开(公告)号：US10763323B2

公开(公告)日：2020-09-01

申请号：US16375756

申请日：2019-04-04

Applicant: Apple Inc.

Inventor： Tiffany T. Moy ,  Yuchi Che ,  Seonpil Jang ,  Warren S. Rieutort-Louis ,  Bhadrinarayana Lalgudi Visweswaran ,  Jae Won Choi ,  Abbas Jamshidi Roudbari ,  Myung-Kwan Ryu ,  Hirokazu Yamagata ,  Keisuke Otsu

IPC: H01L27/32 ,  H01L51/00 ,  H01L51/52

Abstract: An organic light-emitting diode display may have rounded corners. A negative power supply path may be used to distribute a negative voltage to a cathode layer, while a positive power supply path may be used to distribute a positive power supply voltage to each pixel in the display. The positive power supply path may have a cutout that is occupied by the negative power supply path to decrease resistance of the negative power supply path in a rounded corner of the display. To mitigate reflections caused by the positive power supply path being formed over tightly spaced data lines, the positive power supply path may be omitted in a rounded corner of the display, a shielding layer may be formed over the positive power supply path in the rounded corner, or non-linear gate lines may be formed over the positive power supply path.

公开(公告)号：US20240381724A1

公开(公告)日：2024-11-14

申请号：US18783762

申请日：2024-07-25

Applicant: Apple Inc.

Inventor： Prashant Mandlik ,  Bhadrinarayana Lalgudi Visweswaran ,  Xuesong Lu ,  Weixin Li ,  Wenbing Hu ,  Yuchi Che ,  Tsung-Ting Tsai ,  Gihoon Choo ,  Shyuan Yang ,  Kuan-Yi Lee ,  An-Di Sheu ,  Chi-Wei Chou ,  Chin-Fu Lee ,  An-Hong Shen ,  Ko-Wei Chen ,  Kyounghwan Kim ,  Jae Won Choi ,  Warren S. Rieutort-Louis ,  Sungki Lee

IPC: H10K59/131 ,  G06F3/041 ,  H10K59/40 ,  H10K59/88 ,  H10K77/10 ,  H10K102/00

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：US12087187B2

公开(公告)日：2024-09-10

申请号：US17580080

申请日：2022-01-20

Applicant: Apple Inc.

Inventor： Yasmin F. Afsar ,  Ben Hightower ,  Bhadrinarayana Lalgudi Visweswaran ,  Chang-Chia Huang ,  Hoon Sik Kim ,  Paul S. Drzaic ,  Prashant Mandlik ,  Terry C. Lam ,  Wen-I Hsieh ,  Zhichun Shao

IPC: G06F1/16 ,  G09F9/33 ,  G02B5/30

CPC classification number: G09F9/33 ,  G02B5/3025 ,  G06F1/1652

Abstract: A flexible display in a foldable electronic device may have a display cover layer and display panel that bend around a bend axis. The display panel may have an array of pixels configured to display an image through the display cover layer. The pixels may be formed from thin-film display circuitry that is supported by a flexible display panel substrate. The flexible substrate may be supported by a display support plate that bends about the bend axis. The display may be configured to allow attachment of the display panel substrate to the display support plate while helping to prevent undesired localized deformation of the thin-film display circuitry.

公开(公告)号：US11854490B1

公开(公告)日：2023-12-26

申请号：US17879642

申请日：2022-08-02

Applicant: Apple Inc.

Inventor： Levent Erdal Aygun ,  Chin-Wei Lin ,  Yun Wang ,  Xin Lin ,  Aida R Colon-Berrios ,  Shih Chang Chang ,  Fan Gui ,  Mohammad Reza Esmaeili Rad ,  Ran Tu ,  Warren S Rieutort-Louis ,  Abbas Jamshidi Roudbari ,  Bhadrinarayana Lalgudi Visweswaran ,  Cheng-Chih Hsieh ,  Ricardo A Peterson ,  Shyuan Yang ,  Ting-Kuo Chang ,  Tsung-Ting Tsai ,  Yuchi Che

IPC: G09G3/3266 ,  G09G3/00 ,  H01L27/12

CPC classification number: G09G3/3266 ,  G09G3/007 ,  H01L27/124 ,  G09G2300/0452 ,  G09G2300/0861 ,  G09G2310/0286 ,  G09G2320/0626 ,  G09G2330/021

Abstract: To reduce the amount of space occupied in the inactive area of a display by gate driver circuitry, at least a portion of the gate driver circuitry may be positioned in the active area of the display. To accommodate the gate driver circuitry, emissive sub-pixels may be laterally shifted relative to corresponding thin-film transistor sub-pixels. This allows for the thin-film transistor sub-pixels to be grouped adjacent to the central area of the active area, leaving room along an edge of the active area to accommodate one or more additional display components such as gate driver circuitry or fanout portions of data lines.

公开(公告)号：US20220270522A1

公开(公告)日：2022-08-25

申请号：US17580080

申请日：2022-01-20

Applicant: Apple Inc.

Inventor： Yasmin F. Afsar ,  Ben Hightower ,  Bhadrinarayana Lalgudi Visweswaran ,  Chang-Chia Huang ,  Hoon Sik Kim ,  Paul S. Drzaic ,  Prashant Mandlik ,  Terry C. Lam ,  Wen-I Hsieh ,  Zhichun Shao

IPC: G09F9/30 ,  G09F9/33

Abstract: A flexible display in a foldable electronic device may have a display cover layer and display panel that bend around a bend axis. The display panel may have an array of pixels configured to display an image through the display cover layer. The pixels may be formed from thin-film display circuitry that is supported by a flexible display panel substrate. The flexible substrate may be supported by a display support plate that bends about the bend axis. The display may be configured to allow attachment of the display panel substrate to the display support plate while helping to prevent undesired localized deformation of the thin-film display circuitry.

公开(公告)号：US11251259B2

公开(公告)日：2022-02-15

申请号：US16939995

申请日：2020-07-27

Applicant: Apple Inc.

Inventor： Tiffany T. Moy ,  Yuchi Che ,  Seonpil Jang ,  Warren S. Rieutort-Louis ,  Bhadrinarayana Lalgudi Visweswaran ,  Jae Won Choi ,  Abbas Jamshidi Roudbari ,  Myung-Kwan Ryu ,  Hirokazu Yamagata ,  Keisuke Otsu

IPC: H01L27/32 ,  H01L51/00 ,  H01L51/52

Abstract: An organic light-emitting diode display may have rounded corners. A negative power supply path may be used to distribute a negative voltage to a cathode layer, while a positive power supply path may be used to distribute a positive power supply voltage to each pixel in the display. The positive power supply path may have a cutout that is occupied by the negative power supply path to decrease resistance of the negative power supply path in a rounded corner of the display. To mitigate reflections caused by the positive power supply path being formed over tightly spaced data lines, the positive power supply path may be omitted in a rounded corner of the display, a shielding layer may be formed over the positive power supply path in the rounded corner, or non-linear gate lines may be formed over the positive power supply path.