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1.发明申请公开(公告)号：US20240402390A1
公开(公告)日：2024-12-05
申请号：US18678594
申请日：2024-05-30
Applicant: Apple Inc.
Inventor： Youngbae Son , Sean E. Doris , Shengchang Cai , Zachary M. Beiley , Johan L. Piper
Abstract: An electronic device includes a light-transmissive tint layer implemented on a light-transmissive viewing surface, on which a display panel is used to display augmented reality image content overlaid on background image content. A tint driver is used to apply electrical inputs to the light-transmissive tint layer to change optical properties of the light-transmissive tint layer. The temperature of the light-transmissive tint layer may be inferred from an electrical current applied to the light-transmissive tint layer. Dynamic values of the optical properties of the light-transmissive tint layer are predicted based on the electrical inputs and the temperature of the light-transmissive tint layer. The dynamic values of the optical properties are used to generate real-time compensated image data for the augmented reality image content.
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公开(公告)号：US20210098520A1
公开(公告)日：2021-04-01
申请号：US17003638
申请日：2020-08-26
Applicant: Apple Inc.
Inventor： Shengchang Cai , Enkhamgalan Dorjgotov , Chaohao Wang , Sheng Zhang , Giovanni Carbone , Igor Stamenov
IPC: H01L27/146
Abstract: Techniques for implementing and/or operating an electronic device that includes or utilizes a display panel. The display panel includes an organic light-emitting diode layer, an encapsulation layer disposed over the organic light-emitting diode layer, and a color filter layer disposed over the encapsulation layer. The color filter layer overhangs the organic light-emitting diode layer and comprises a first color filter cell of a first color component sub-pixel that at least partially overlaps an organic light-emitting diode of a second color component sub-pixel that is a different color compared to the first color component sub-pixel.
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公开(公告)号：US12300161B2
公开(公告)日：2025-05-13
申请号：US18429079
申请日：2024-01-31
Applicant: Apple Inc.
Inventor： Shereef Shehata , Jim C Chou , Sheng Zhang , Shengchang Cai
IPC: G09G3/3208 , G06F3/01
Abstract: Systems and methods are provided for using an optical crosstalk compensation (OXTC) block to compensate for optical crosstalk resulted from a combination of viewing angle change across field of view (FoV), color filter (CF) crosstalk, and the OLED various angle color shift (VACS) of a foveated electronic display. One or more two-dimensional (2D) OXTC factor maps are used to determine OXTC factors for input image data of the OXTC block, and the OXTC factors are updated on a per frame basis. Offset values are determined using a parallel architecture and used to determine the OXTC factors. Compensation weights are used to determine weighted OXTC factors to improve processing efficiency. Output image data are obtained by applying the weighted OXTC factors to the input image data.
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公开(公告)号：US20240404461A1
公开(公告)日：2024-12-05
申请号：US18429079
申请日：2024-01-31
Applicant: Apple Inc.
Inventor： Shereef Shehata , Jim C. Chou , Sheng Zhang , Shengchang Cai
IPC: G09G3/3208 , G06F3/01
Abstract: Systems and methods are provided for using an optical crosstalk compensation (OXTC) block to compensate for optical crosstalk resulted from a combination of viewing angle change across field of view (FoV), color filter (CF) crosstalk, and the OLED various angle color shift (VACS) of a foveated electronic display. One or more two-dimensional (2D) OXTC factor maps are used to determine OXTC factors for input image data of the OXTC block, and the OXTC factors are updated on a per frame basis. Offset values are determined using a parallel architecture and used to determine the OXTC factors. Compensation weights are used to determine weighted OXTC factors to improve processing efficiency. Output image data are obtained by applying the weighted OXTC factors to the input image data.
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公开(公告)号：US11626047B1
公开(公告)日：2023-04-11
申请号：US17405497
申请日：2021-08-18
Applicant: Apple Inc.
Inventor： Shengchang Cai , Hasan Akyol , Xuebei Yang , Sheng Zhang
Abstract: Embodiments disclosed herein provide systems and methods for testing and compensating for pixel degradation in an electronic display based on current and voltage values sensed in a reference array. An electronic display includes an active array, a reference array, and sensing circuitry. A compensation manager obtains current data values of the reference array from the sensing circuitry. The compensation manager generates a current-voltage curve based on the current data and adjusts the current-voltage curve to compensate for variations in temperature and/or pixel brightness. In this way, the compensation manager may improve performance of the electronic display by, for example, by reducing visible anomalies.
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Patent Agency Ranking
公开(公告)号：US20240404488A1
公开(公告)日：2024-12-05
申请号：US18325997
申请日：2023-05-30
Applicant: Apple Inc.
Inventor： Shereef Shehata , Jim C. Chou , Sterling G. Orsten , Shengchang Cai
Abstract: A system may include a display for displaying an image frame that is divided into regions having respective resolutions based on display image data. The device may also include image processing circuitry to generate the display image data based on multi-resolution image data and vignetting data generated by determining a phase offset of the pixel grouping indicative of a relative distance between the pixel grouping and a grid line of a vignetting grid and determining a relative location of the pixel grouping with respect to a set of the grid points based on the phase offset and interpolating between the vignetting values of the set of grid points to generate the vignetting data based on the relative location. The vignetting grid may include multiple grid points having corresponding vignetting values. Additionally, the image processing circuitry may apply the vignetting data to the multi-resolution image data of the pixel grouping.
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公开(公告)号：US11929021B1
公开(公告)日：2024-03-12
申请号：US18328617
申请日：2023-06-02
Applicant: Apple Inc.
Inventor： Shereef Shehata , Jim C Chou , Sheng Zhang , Shengchang Cai
IPC: G09G3/3208 , G06F3/01
CPC classification number: G09G3/3208 , G06F3/013 , G09G2320/0214
Abstract: Systems and methods are provided for using an optical crosstalk compensation (OXTC) block to compensate for optical crosstalk resulted from a combination of viewing angle change across field of view (FoV), color filter (CF) crosstalk, and the OLED various angle color shift (VACS) of a foveated electronic display. One or more two-dimensional (2D) OXTC factor maps are used to determine OXTC factors for input image data of the OXTC block, and the OXTC factors are updated on a per frame basis. Offset values are determined using a parallel architecture and used to determine the OXTC factors. Compensation weights are used to determine weighted OXTC factors to improve processing efficiency. Output image data are obtained by applying the weighted OXTC factors to the input image data.
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公开(公告)号：US11741918B1
公开(公告)日：2023-08-29
申请号：US17511375
申请日：2021-10-26
Applicant: Apple Inc.
Inventor： Shengchang Cai , Sheng Zhang , Sterling G. Orsten , Shereef Shehata
IPC: G09G5/10 , G06F3/01 , G09G3/3208
CPC classification number: G09G5/10 , G06F3/013 , G09G3/3208 , G09G2320/0646 , G09G2320/0686 , G09G2354/00 , G09G2360/16
Abstract: It may be desirable to implement a vignetting effect in a display. The vignetting effect causes the display to have a light-emitting area that gradually fades to a black, non-light-emitting area. The vignetting effect allows for the size and shape of the light-emitting area to be controlled while still being aesthetically pleasing to a viewer. To implement a vignetting mask for the vignetting effect, control circuitry in the electronic device may apply dimming factors to image data for the display. To avoid artifacts caused by the vignetting mask, an initial array of dimming factors for implementing the vignetting mask may have a range between −0.5 and 1.5. After upsampling, clamping may be performed to reduce the range of the dimming factors to between 0 and 1. Ultimately, the dimming factors are applied to image data for each frame to implement the vignetting mask in each frame.
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公开(公告)号：US20240402797A1
公开(公告)日：2024-12-05
申请号：US18470932
申请日：2023-09-20
Applicant: Apple Inc.
Inventor： Shereef Shehata , Jim C Chou , Shengchang Cai
Abstract: Embodiments presented herein relate to reducing perceivable image artifacts on an electronic display caused by variances in emission timing of emission groups, and more specifically, to emission techniques that can be used with foveated content, such as dynamically foveated content. For example, an image frame may be divided into multiple foveation regions based on viewing characteristics, such as a viewer's gaze. To improve perceived image quality, a first foveation region may use a higher pixel resolution while a second foveation region may use a lower pixel resolution, which may result in differences in programming time. As such, one or more intra-frame pauses may be used when programming the second foveation region to delay emission timing of the second foveation region. In this way, programming time for the image frame may be more consistent and perceivable image artifacts from frame to frame may be reduced.
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公开(公告)号：US20230395019A1
公开(公告)日：2023-12-07
申请号：US18328736
申请日：2023-06-03
Applicant: Apple Inc.
Inventor： Shengchang Cai , Enkhamgalan Dorjgotov , Chaohao Wang , Sheng Zhang , Giovanni Carbone , Igor Stamenov
IPC: G09G3/3208
CPC classification number: G09G3/3208 , G09G2320/0209 , G09G2320/0242 , G09G2320/028
Abstract: Systems, devices, and methods for compensating for color shift, such as due to optical crosstalk, with a corrective lens are provided. Such a device may include an electronic display and image processing circuitry. The electronic display may include a display panel and a corrective lens. The image processing circuitry may process image data to correct for optical crosstalk of the electronic display when the display panel is viewed through the corrective lens.
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