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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:US20200074910A1
公开(公告)日:2020-03-05
申请号:US16677522
申请日:2019-11-07
Applicant: Apple Inc.
Inventor: Cheng Chen , Deniz Teoman , Jiaying Wu , John Z. Zhong , Jun Jiang
Abstract: An electronic device may include a display having an array of display pixels and having display control circuitry that controls the operation of the display. The display control circuitry may adaptively adjust the spectral characteristics of display light emitted from the display to achieve a desired effect on the human circadian system. For example, the display control circuitry may adjust the spectral characteristics of blue light emitted from the display based on the time of day such that a user's exposure to the display light may result in a circadian response similar to that which would be experienced in natural light. The spectral characteristics of blue light emitted from the display may be adjusted by adjusting the relative maximum power levels provided to blue pixels in the display or by shifting the peak wavelength associated with blue light emitted from the display.
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公开(公告)号:US10288788B2
公开(公告)日:2019-05-14
申请号:US15451223
申请日:2017-03-06
Applicant: Apple Inc.
Inventor: Cheng Chen , Masato Kuwabara , Christopher L. Boitnott , Jun Qi , Nathan K. Gupta , Victor H. Yin , John Z. Zhong
IPC: G02B1/14 , G02B5/30 , G02B1/18 , G02F1/1335 , G02B1/11 , G02F1/1333
Abstract: Electronic devices may be provided with displays that have polarizers. A polarizer may have a polymer layer that has a portion covered with a dichroic dye to form a polarized region and a portion that is free of dichroic dye to form an unpolarized region. The unpolarized region may be formed by masking the polymer layer during a dye coating process. Masks may be formed from polymers. The shape of the mask may define the shape of the unpolarized region. The mask may be left in place within the polarizer or may be removed from the polarizer during fabrication. Unpolarized regions may also be formed by light bleaching, chemical bleaching, and material removal techniques. Bleached areas may be chemically stabilized. A moisture barrier layer may be incorporated into the polarizer to help prevent the unpolarized region from reverting to a polarized state.
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公开(公告)号:US20190139512A1
公开(公告)日:2019-05-09
申请号:US16194084
申请日:2018-11-16
Applicant: Apple Inc.
Inventor: Cheng Chen , Jiaying Wu , Will Riedel , Wei Chen , John Z. Zhong
Abstract: An electronic device may include a display having an array of display pixels and having display control circuitry that controls the operation of the display. The display control circuitry may operate the display in different modes. In a paper mode, display control circuitry may use stored spectral reflectance data to adjust display colors such that the colors appear as they would on a printed sheet of paper. In a low light mode when the ambient light level is below a threshold, the light emitted from the display may be adjusted to mimic the appearance of an incandescent light source. In a bright light mode when the ambient light level exceeds a threshold, the light emitted from the display may be adjusted to maximize readability in bright light. The target white point of the display may be adjusted based on which mode the display is operating in.
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公开(公告)号:US20190082565A1
公开(公告)日:2019-03-14
申请号:US15836424
申请日:2017-12-08
Applicant: Apple Inc.
Inventor: Wei Lin , Nathan K. Gupta , John Z. Zhong
Abstract: Shield structures with reduced spacing between adjacent insulation components and systems and methods for making the same are provided. In some embodiments, different insulation components of different layers of a stack may be attached to the same surface of a shield component during a single attachment (e.g., lamination) operation to attenuate the spacing between the different insulation components attached to the shield component. Limiting the size of a spacing between adjacent insulation components along a shield component of a shield structure may limit the size of an exposed portion of the shield component, which may limit the opportunity for that exposed shield component portion to be shorted to another structure (e.g., a support structure of an electronic device that includes the shield structure).
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公开(公告)号:US10192519B2
公开(公告)日:2019-01-29
申请号:US15388416
申请日:2016-12-22
Applicant: Apple Inc.
Inventor: Cheng Chen , Jiaying Wu , Will Riedel , Wei Chen , John Z. Zhong
Abstract: An electronic device may include a display having an array of display pixels and having display control circuitry that controls the operation of the display. The display control circuitry may operate the display in different modes. In a paper mode, display control circuitry may use stored spectral reflectance data to adjust display colors such that the colors appear as they would on a printed sheet of paper. In a low light mode when the ambient light level is below a threshold, the light emitted from the display may be adjusted to mimic the appearance of an incandescent light source. In a bright light mode when the ambient light level exceeds a threshold, the light emitted from the display may be adjusted to maximize readability in bright light. The target white point of the display may be adjusted based on which mode the display is operating in.
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公开(公告)号:US10133382B2
公开(公告)日:2018-11-20
申请号:US15311836
申请日:2014-10-02
Applicant: Apple Inc.
Inventor: Byung Duk Yang , Kyung Wook Kim , Szu-Hsien Lee , Shih-Chang Chang , John Z. Zhong
IPC: G06F3/041 , G06F3/044 , G02F1/1333 , G02F1/1368 , G02F1/1343 , G02F1/1362
Abstract: A touch screen is disclosed. The touch screen can comprise a substrate having a first surface upon which a touch or proximity event is to be detected, and a second surface that opposes the first surface, and a touch sensor electrode and a first display pixel including a first display pixel TFT formed on the second surface of the substrate. The first touch sensor electrode can be disposed between the second surface of the substrate and the first display pixel TFT, and the first touch sensor electrode can be configured to detect the touch or proximity event. In some examples, the substrate can comprise a TFT glass substrate. In some examples, the touch screen can comprise a first touch sensor routing electrically coupled to the first touch sensor electrode, wherein the first touch sensor routing is disposed between the second surface of the substrate and the first display pixel TFT.
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公开(公告)号:US10031367B2
公开(公告)日:2018-07-24
申请号:US13628811
申请日:2012-09-27
Applicant: Apple Inc.
Inventor: Victor H. Yin , Jun Qi , Dinesh C. Mathew , Shih-Chang Chang , Cheng Chen , John Z. Zhong , Wei Chen , Adam T. Garelli , Bryan W. Posner , Christiaan A. Ligtenberg
IPC: G02F1/1335 , G02F1/1362 , G02F1/1345 , G02F1/1333
Abstract: An electronic device may be provided with a display that has a layer of liquid crystal material interposed between a color filter layer and a thin-film-transistor layer. The thin-film-transistor layer may have a substrate with an upper surface and a lower surface. A circular polarizer may be formed on the upper surface. Thin-film transistor circuitry such as gate driver circuitry may be formed on the lower surface. A display driver circuit may be mounted on an inactive border region of the lower surface of the thin-film transistor substrate. Display pixels may form an array in a central active region of the display. A grid of metal gate and data lines may distribute signals from the display driver circuit and gate driver circuitry to the display pixels. A grid of non-reflecting lines may be interposed between the grid of metal lines and the lower surface.
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公开(公告)号:US09964820B2
公开(公告)日:2018-05-08
申请号:US14491248
申请日:2014-09-19
Applicant: Apple Inc.
Inventor: Byung Duk Yang , Kyung-Wook Kim , Shih-Chang Chang , Hiroshi Osawa , John Z. Zhong
IPC: G02F1/1335 , G02F1/1362 , G02F1/1333
CPC classification number: G02F1/136209 , G02F2001/133357 , G02F2001/136222
Abstract: A display may have a thin-film transistor layer and a color filter layer. The display may include light blocking structures formed on a transparent substrate. In one arrangement, a clear planarization layer may be formed over the light blocking structures. The thin-film transistor layer may be formed over the planarization layer. The color filter layer may be integrated with the thin-film transistor layer. At least light blocking structures and the planarization layer should be formed from high temperature resistance material. In another arrangement, the color filter layer may be formed on the light blocking structures. A clear planarization layer may then be formed over the color filter layer. The thin-film transistor layer may be formed on the planarization layer. In this arrangement, the color filter layer also needs to be formed from thermal resistance material.
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公开(公告)号:US09947259B2
公开(公告)日:2018-04-17
申请号:US15331722
申请日:2016-10-21
Applicant: Apple Inc.
Inventor: Jiaying Wu , Lu Zhang , Cheng Chen , Gabriel Marcu , Chaohao Wang , Ming Xu , Ricardo Motta , Wei Chen , John Z. Zhong
CPC classification number: G09G3/2003 , G09G3/3413 , G09G5/02 , G09G2320/0242 , G09G2320/0261 , G09G2320/0666 , G09G2360/144 , G09G2360/145
Abstract: An electronic device may include a display having an array of display pixels and having display control circuitry that controls the operation of the display. The display control circuitry may adaptively adjust the display output based on ambient lighting conditions. For example, in cooler ambient lighting conditions such as those dominated by daylight, the display may display neutral colors using a relatively cool white. When the display is operated in warmer ambient lighting conditions such as those dominated by indoor light sources, the display may display neutral colors using a relatively warm white. Adapting to the ambient lighting conditions may ensure that the user does not perceive color shifts on the display as the user's vision chromatically adapts to different ambient lighting conditions. Adaptively adjusting images in this way can also have beneficial effects on the human circadian rhythm by displaying warmer colors in the evening.
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