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公开(公告)号：US20230171988A1
公开(公告)日：2023-06-01
申请号：US17968280
申请日：2022-10-18
申请人： Apple Inc.
发明人： 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
CPC分类号： H01L51/5253 , H01L51/5262 , H01L51/5293 , H01L27/323
摘要： 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.
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公开(公告)号：US11087670B2
公开(公告)日：2021-08-10
申请号：US15895248
申请日：2018-02-13
申请人： Apple Inc.
发明人： 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
摘要： 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：US20240210995A1
公开(公告)日：2024-06-27
申请号：US18483653
申请日：2023-10-10
申请人： Apple Inc.
发明人： 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分类号： G06F1/16 , H10K59/131 , H10K59/40 , H10K77/10
CPC分类号： G06F1/1652 , H10K59/131 , H10K59/40 , H10K77/111 , H10K2102/311
摘要： 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.
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公开(公告)号：US20230080552A1
公开(公告)日：2023-03-16
申请号：US17826416
申请日：2022-05-27
申请人： Apple Inc.
发明人： Kuan-Yi Lee , Takahide Ishii , Prashant Mandlik , Chih-Lei Chen , Bhadrinarayana Lalgudi Visweswaran , Ankit Mahajan
摘要： 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.
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公开(公告)号：US20180174505A1
公开(公告)日：2018-06-21
申请号：US15895248
申请日：2018-02-13
申请人： Apple Inc.
发明人： 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
CPC分类号： 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
摘要： 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：US12087187B2
公开(公告)日：2024-09-10
申请号：US17580080
申请日：2022-01-20
申请人： Apple Inc.
发明人： 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
CPC分类号： G09F9/33 , G02B5/3025 , G06F1/1652
摘要： 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.
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公开(公告)号：US20220270522A1
公开(公告)日：2022-08-25
申请号：US17580080
申请日：2022-01-20
申请人： Apple Inc.
发明人： 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
摘要： 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.
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公开(公告)号：US20180053466A1
公开(公告)日：2018-02-22
申请号：US15275109
申请日：2016-09-23
申请人： Apple Inc.
发明人： Rui Zhang , Mohammad Hajirostam , Hung Sheng Lin , Mohammad B. Vahid Far , Sang Y. Youn , Zhen Zhang , Prashant Mandlik , Sun-Il Chang , Jie Won Ryu , Shengkui Gao , Hyunwoo Nho , Wei H. Yao , Yafei Bi , Yun Wang
CPC分类号： G09G3/006 , G01L1/2281 , G01M5/0033 , G01M5/0083 , G09G3/20 , G09G3/32 , G09G2300/0426 , G09G2330/12 , G09G2380/02 , G11C7/04 , G11C19/28 , H01L27/3276 , H01L51/0031 , H01L51/0097
摘要： 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：US10707282B1
公开(公告)日：2020-07-07
申请号：US16000725
申请日：2018-06-05
申请人： Apple Inc.
发明人： Chih Jen Yang , Prashant Mandlik , Chia-Hao Chang , Chien-Chung Wang , Te-Hua Teng , Yu Cheng Chen
摘要： A display may have organic light-emitting diode pixels formed from thin-film circuitry. An organic layer including planarization layers and a pixel definition layer may overlap the thin-film circuitry. Thin-film encapsulation may overlap the organic layer. The thin-film encapsulation may be formed from an organic dielectric layer interposed between two layers of inorganic dielectric material. A strip of peripheral crack-stopper structures may run along an edge of the display and may surround the array of pixels. The crack-stopper structures may include parallel inorganic lines formed from a first inorganic layer such as an inorganic layer of the thin-film circuitry. A strip of the organic layer may overlap the parallel inorganic lines. The crack-stopper structures may have parallel tapered polymer lines. The polymer lines may be overlapped by a second inorganic dielectric layer formed from the inorganic material of the thin-film encapsulation layer.
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