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公开(公告)号：US20160105950A1
公开(公告)日：2016-04-14
申请号：US14512073
申请日：2014-10-10
Applicant: Apple Inc.
Inventor： Paul S. Drzaic , Zhen Zhang
CPC classification number: H05K1/028 , B05D3/002 , B05D2201/02 , B29C53/04 , B29L2031/3425 , H05K1/0283 , H05K1/0296 , H05K1/189 , H05K3/0014 , H05K3/28 , H05K2201/09036 , H05K2201/09063 , H05K2201/09218 , H05K2201/09263 , H05K2201/10106
Abstract: A flexible substrate may be provided with an array of holes and conductive traces that extend along the flexible substrate between the holes. The flexible substrate may form part of a display or other component in an electronic device. The conductive traces may be metal traces that have meandering path shapes to resist damage upon bending. A polymer coating may be applied over the metal traces to align a neutral stress plane with the metal traces and to serve as a moisture barrier. The holes may allow the flexible substrate to twist and form a three-dimensional shape as the flexible substrate is bent. A rigid or flexible protective coating may be formed by depositing a liquid polymer precursor on the flexible substrate and curing the liquid polymer precursor.
Abstract translation: 柔性基底可以设置有沿着孔之间的柔性基底延伸的孔阵列和导电迹线。 柔性基板可以形成电子设备中的显示器或其他部件的一部分。 导电迹线可以是具有曲折路径形状以抵抗弯曲时的损伤的金属迹线。 聚合物涂层可以施加在金属迹线上，以将中性应力平面与金属迹线对准并用作防潮层。 当柔性基板弯曲时，孔可以允许柔性基板扭曲并形成三维形状。 可以通过在柔性基底上沉积液体聚合物前体并固化液体聚合物前体来形成刚性或柔性保护涂层。
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公开(公告)号：US20240373721A1
公开(公告)日：2024-11-07
申请号：US18568070
申请日：2022-05-10
Applicant: Apple Inc.
Inventor： Bulong Wu , Zhen Zhang , Paul S Drzaic , Yong Sun , Izhar Z Ahmed , Kuan H Lu , Han-Chieh Chang , Mingjing Ha , Yung-Yu Hsu
IPC: H10K59/80 , H10K77/10 , H10K102/00
Abstract: An electronic device may have a display overlapped by a display cover layer. Portions of the surface of the display and cover layer may have curved profiles. For example, a display cover layer may have transparent sidewall portions with curved surface profiles. The transparent sidewall portions of the display cover layer may include rounded corners having areas of compound curvature. A flexible display panel may be pressed over a mold to impart desired curvature (such as compound curvature) to the flexible display panel. To mitigate wrinkling in a flexible display panel molded to have compound curvature, a backfilm may be included that absorbs compressive strains in the display panel. The backfilm may have a coefficient of thermal expansion that is higher than that of the display panel. Instead or in addition, the backfilm may have portions with different Young's modulus magnitudes or different thickness magnitudes.
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公开(公告)号：US11940848B2
公开(公告)日：2024-03-26
申请号：US17392138
申请日：2021-08-02
Applicant: Apple Inc.
Inventor： Elmar Gehlen , Zhen Zhang , Francois R. Jacob , Paul S. Drzaic , Han-Chieh Chang , Abbas Jamshidi Roudbari , Anshi Liang , Hopil Bae , Mahdi Farrokh Baroughi , Marc J. DeVincentis , Paolo Sacchetto , Tiffany T. Moy , Warren S. Rieutort-Louis , Yong Sun , Jonathan P. Mar , Zuoqian Wang , Ian D. Tracy , Sunggu Kang , Jaein Choi , Steven E. Molesa , Sandeep Chalasani , Jui-Chih Liao , Xin Zhao , Izhar Z. Ahmed
IPC: G09G3/3225 , G06F1/16 , H01L25/075 , H01L25/16
CPC classification number: G06F1/1656 , G06F1/163 , G09G3/3225 , H01L25/0753 , H01L25/167
Abstract: An electronic device display may have pixels formed from crystalline semiconductor light-emitting diode dies, organic light-emitting diodes, or other pixel structures. The pixels may be formed on a display panel substrate. A display panel may extend continuously across the display or multiple display panels may be tiled in two dimensions to cover a larger display area. Interconnect substrates may have outwardly facing contacts that are electrically shorted to corresponding inwardly facing contacts such as inwardly facing metal pillars associated with the display panels. The interconnect substrates may be supported by glass layers. Integrated circuits may be embedded in the display panels and/or in the interconnect substrates. A display may have an active area with pixels that includes non-spline pixels in a non-spline display portion located above a straight edge of the display and spline pixel in a spline display portion located above a curved edge of the display.
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公开(公告)号：US20220061179A1
公开(公告)日：2022-02-24
申请号：US16997665
申请日：2020-08-19
Applicant: Apple Inc.
Inventor： Izhar Z. Ahmed , John J. Baker , Bulong Wu , Daniel W. Jarvis , Douglas G. Fournier , Eric W. Bates , Hao Dong , Isabel S. Gueble , Jason C. Law , Jingjing Xu , Kikue S. Burnham , Paul U. Leutheuser , Sarah Trabia , Sawyer I. Cohen , Shaorui Yang , Shaowei Qin , Siddharth Avachat , Yaocheng Zhang , Ying-Chih Wang , Zhen Zhang , Benjamin R. Pope
Abstract: An electronic device includes a housing that defines an aperture, and a display assembly positioned in the aperture. The display assembly can include a display layer having a first portion, and a second portion bending at least partially below the first portion. The first portion and the second portion can define a bend volume, and a potting material can be disposed in the bend volume, such that the potting material contacts the first portion and the second portion. An internal enclosure can be contoured to the display assembly.
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公开(公告)号：US11223020B2
公开(公告)日：2022-01-11
申请号：US15476812
申请日：2017-03-31
Applicant: Apple Inc.
Inventor： Zhen Zhang , Yi Tao , Paul S. Drzaic , Joshua G. Wurzel
IPC: H01L51/00 , H01L23/498 , H01L23/538 , H01L27/32 , H01L51/52
Abstract: A display may have an array of organic light-emitting diodes that form an active area on a flexible substrate. Metal traces may extend between the active area and an inactive area of the flexible substrate. Display driver circuitry such as a display driver integrated circuit may be coupled to the inactive area. The metal traces may extend across a bend region in the flexible substrate. The flexible substrate may be bent in the bend region. The flexible substrate may be made of a thin flexible material to reduce metal trace bending stress. A coating layer in the bend region may be provided with an enhanced elasticity to allow its thickness to be reduced. The flexible substrate may be bent on itself and secured within an electronic device without using a mandrel.
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Patent Agency Ranking
公开(公告)号：US10198040B2
公开(公告)日：2019-02-05
申请号：US15272957
申请日：2016-09-22
Applicant: Apple Inc.
Inventor： Zhen Zhang , Victor H. Yin , Cyrus Y. Liu , Paul S. Drzaic , Sungwon Bae , Chun-Hao Tung , Kiarash Vakhshouri , Sunggu Kang , John Z. Zhong
Abstract: An electronic device may have a flexible portion that allows the device to be folded. The device may have a flexible display. The flexible display may have a flexible display layer, a cover layer, a touch sensor interposed between the flexible display layer and the cover layer, a support layer, and a polarizer layer. The polarizer layer may be interposed between the touch sensor and the flexible display or between the touch sensor and the cover layer. The touch sensor may include optically clear adhesive that is flexible and facilitates bending of the display. The optically clear adhesive may include additives such as water vapor penetration reducing additive, anticorrosion additive, ultraviolet-light blocking additive, and index-of-refraction adjustment additive. The support layer may be formed from shape memory alloy or amorphous metal and may have openings to facilitate bending.
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公开(公告)号：US20180374912A1
公开(公告)日：2018-12-27
申请号：US15994858
申请日：2018-05-31
Applicant: Apple Inc.
Inventor： Zhen Zhang , Terry C. Shyu , Paul S. Drzaic , Izhar Z. Ahmed
Abstract: A display may have an array of organic light-emitting diodes that form an active area on a flexible substrate. Display driver circuitry such as a display driver integrated circuit may be coupled to an inactive area of the flexible substrate. Metal traces may extend across a bent region of the flexible substrate between the active area and inactive area. Metal traces may have zigzag shapes to reduce stress when bending. Adjacent pairs of parallel segments in the metal traces may be shorted together by a bridging segment that extends perpendicular to the two parallel segments. The bridging segment may be offset from corners to avoid clusters of stress zones in the metal trace. Neutral plane adjustment layers in the bent region may include a metal layer to help counteract the bending force of the flexible substrate and the relaxation of an upper polymer coating.
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公开(公告)号：US10069100B2
公开(公告)日：2018-09-04
申请号：US15234416
申请日：2016-08-11
Applicant: Apple Inc.
Inventor： Zhen Zhang , Paul S. Drzaic
Abstract: An electronic device may have a display. The device and display may bend about a bend axis. The display may have layers such as an organic light-emitting diode layer or other layer with pixels, a touch sensor layer, a protective layer with a polarizer, and a support layer. Lubrication layers formed from textured surfaces, slippery coatings, and lubricants such as oil may be interposed between the layers of the display so that the display layers slip past each other during bending of the device and display and minimize display stress. A device housing may have a recess or other structures that retain the display within the housing while allowing the display layers to shift relative to each other during bending. Elastomeric gaskets and elastomeric lubricant retention structures may be used to mount the display layers in the housing and to retain liquid lubricant within the layers of the display.
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公开(公告)号：US09947255B2
公开(公告)日：2018-04-17
申请号：US15274942
申请日：2016-09-23
Applicant: Apple Inc.
Inventor： Zhen Zhang , Izhar Ahmed , Hoon Sik Kim
CPC classification number: G09G3/006 , G01L1/2281 , G09G3/20 , G09G3/32 , G09G2300/0426 , G09G2330/12 , G09G2380/02 , G11C19/28 , H01L27/3276 , H01L51/0031 , H01L51/0097
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.
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公开(公告)号：US20180053455A1
公开(公告)日：2018-02-22
申请号：US15274942
申请日：2016-09-23
Applicant: Apple Inc.
Inventor： Zhen Zhang , Izhar Ahmed , Hoon Sik Kim
IPC: G09G3/00
CPC classification number: G09G3/006 , G01L1/2281 , G09G3/20 , G09G3/32 , G09G2300/0426 , G09G2330/12 , G09G2380/02 , G11C19/28 , H01L27/3276 , H01L51/0031 , H01L51/0097
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.
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