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公开(公告)号:US10984706B2
公开(公告)日:2021-04-20
申请号:US16678203
申请日:2019-11-08
Applicant: Apple inc.
Inventor: Chin-Wei Lin , Hung Sheng Lin , Vasudha Gupta , Shinya Ono , Tsung-Ting Tsai , Shyuan Yang
IPC: G09G3/32 , G09G3/3233 , G09G3/3291
Abstract: An electronic device comprises a display and a controller. The controller is configured to provide a first frequency refresh rate to the display. The controller is also configured to generate a control signal configured to control emission of a light emitting diode of a display pixel of the display at a second frequency based on whether the first frequency refresh rate of the display is less than a predetermined threshold value.
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公开(公告)号:US10950679B1
公开(公告)日:2021-03-16
申请号:US16108686
申请日:2018-08-22
Applicant: Apple Inc.
Inventor: Jiayi Jin , Chin-Wei Lin , Shyuan Yang , Weijun Yao
IPC: H01L27/32 , G09G3/3275 , G09G3/3225 , H01L27/12
Abstract: A display may have an array of pixels arranged in rows and columns. The pixels may be organic light-emitting diode pixels that each include an organic light-emitting diode and thin-film transistor circuitry for controlling the diode or may be other suitable display pixels. The pixels may form an active area of the display that displays images. Display driver circuitry may be provided in an inactive border area of the display. The display may include vertical gate lines. The display may also include data lines. The data lines may include vertical data line portions and orthogonal horizontal data line portions coupled to the vertical data line portions with vias. During operation, data from the display driver circuitry may be provided to rows of the pixels using the data lines while the vertical gate lines supply control signals to columns of the pixels.
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公开(公告)号:US10854139B2
公开(公告)日:2020-12-01
申请号:US16696578
申请日:2019-11-26
Applicant: Apple Inc.
Inventor: Chin-Wei Lin , Shyuan Yang , Chuang Qian , Abbas Jamshidi Roudbari , Ting-Kuo Chang
IPC: G09G3/32 , G09G3/3225 , G09G3/3233
Abstract: A display may have an array of organic light-emitting diode display pixels operating at a low refresh rate. Each display pixel may have six thin-film transistors and one capacitor. One of the six transistors may serve as the drive transistor and may be compensated using the remaining five transistors and the capacitor. One or more on-bias stress operations may be applied before threshold voltage sampling to mitigate first frame dimming. Multiple anode reset and on-bias stress operations may be inserted during vertical blanking periods to reduce flicker and maintain balance and may also be inserted between successive data refreshes to improve first frame performance. Two different emission signals controlling each pixel may be toggled together using a pulse width modulation scheme to help provide darker black levels.
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公开(公告)号:US20200219945A1
公开(公告)日:2020-07-09
申请号:US16826521
申请日:2020-03-23
Applicant: Apple Inc.
Inventor: Cheng-Ho Yu , Chin-Wei Lin , Shyuan Yang , Ting-Kuo Chang , Tsung-Ting Tsai , Warren S. Rieutort-Louis , Shih-Chang Chang , Yu Cheng Chen , John Z. Zhong
IPC: H01L27/32 , G09G3/3233 , G09G3/3266 , G06F3/044
Abstract: A display may have an array of pixels. Display driver circuitry may supply data and control signals to the pixels. Each pixel may have seven transistors, a capacitor, and a light-emitting diode such as an organic light-emitting diode. The seven transistors may receive control signals using horizontal control lines. Each pixel may have first and second emission enable transistors that are coupled in series with a drive transistor and the light-emitting diode of that pixel. The first and second emission enable transistors may be coupled to a common control line or may be separately controlled so that on-bias stress can be effectively applied to the drive transistor. The display driver circuitry may have gate driver circuits that provide different gate line signals to different rows of pixels within the display. Different rows may also have different gate driver strengths and different supplemental gate line loading structures.
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公开(公告)号:US20200152117A1
公开(公告)日:2020-05-14
申请号:US16678203
申请日:2019-11-08
Applicant: Apple Inc.
Inventor: Chin-Wei Lin , Hung Sheng Lin , Vasudha Gupta , Shinya Ono , Tsung-Ting Tsai , Shyuan Yang
IPC: G09G3/32 , G09G3/3291 , G09G3/3233
Abstract: An electronic device comprises a display and a controller. The controller is configured to provide a first frequency refresh rate to the display. The controller is also configured to generate a control signal configured to control emission of a light emitting diode of a display pixel of the display at a second frequency based on whether the first frequency refresh rate of the display is less than a predetermined threshold value.
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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.
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公开(公告)号:US20250148969A1
公开(公告)日:2025-05-08
申请号:US19016919
申请日:2025-01-10
Applicant: Apple Inc.
Inventor: Chin-Wei Lin , Hung Sheng Lin , Vasudha Gupta , Shinya Ono , Tsung-Ting Tsai , Shyuan Yang
IPC: G09G3/32 , G09G3/3233 , G09G3/3291
Abstract: An electronic device comprises a display and a controller. The controller is configured to provide a first frequency refresh rate to the display. The controller is also configured to generate a control signal configured to control emission of a light emitting diode of a display pixel of the display at a second frequency based on whether the first frequency refresh rate of the display is less than a predetermined threshold value.
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公开(公告)号:US12205531B2
公开(公告)日:2025-01-21
申请号:US18306690
申请日:2023-04-25
Applicant: Apple Inc.
Inventor: Chin-Wei Lin , Hung Sheng Lin , Vasudha Gupta , Shinya Ono , Tsung-Ting Tsai , Shyuan Yang
IPC: G09G3/32 , G09G3/3233 , G09G3/3291
Abstract: An electronic device comprises a display and a controller. The controller is configured to provide a first frequency refresh rate to the display. The controller is also configured to generate a control signal configured to control emission of a light emitting diode of a display pixel of the display at a second frequency based on whether the first frequency refresh rate of the display is less than a predetermined threshold value.
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公开(公告)号:US12185616B1
公开(公告)日:2024-12-31
申请号:US17840472
申请日:2022-06-14
Applicant: Apple Inc.
Inventor: Ricardo A Peterson , Yuchi Che , Warren S Rieutort-Louis , Abbas Jamshidi Roudbari , Yi Qiao , Yue Cui , Jean-Pierre S Guillou , Shyuan Yang , Tsung-Ting Tsai
Abstract: An electronic device may include a display and an optical sensor formed underneath the display. The display may have both a full pixel density region and a pixel removal region with a plurality of high-transmittance areas that overlap the optical sensor. To mitigate reflectance mismatch between the full pixel density region and the pixel removal region, the pixel removal region may include a transition region at one or more edges. In the transition region, one or more components may have a gradual density change between the full pixel density region and a central portion of the pixel removal region. Components that may have a changing density in the transition region include dummy thin-film transistor sub-pixels, dummy anodes, a cathode layer, and a touch sensor metal layer. The transition region may also include anodes that gradually change shape and/or size.
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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.
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