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公开(公告)号：US10438561B2
公开(公告)日：2019-10-08
申请号：US15842383
申请日：2017-12-14
Applicant: Apple Inc.
Inventor： Shereef Shehata , Christopher P. Tann , Guy Côté
Abstract: Systems and methods for interpolating overdrive values using a lookup table to compensate for potential display artifacts. Interpolating includes applying a first interpolation type to a first portion of the lookup table when a point to be interpolated is in the first portion of the lookup table. However, interpolating includes applying a second interpolation type to a second portion of the lookup table when the point to be interpolated is in the second portion of the lookup table. The interpolated values are then used to drive pixels of a display panel.
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公开(公告)号：US10410569B2
公开(公告)日：2019-09-10
申请号：US15874821
申请日：2018-01-18
Applicant: Apple Inc.
Inventor： Paul S. Drzaic , Ross Thompson , Guy Cote , Christopher P. Tann , Jerrold V. Hauck , Yifan Zhang , Jean-Pierre Guillou , Ian C. Hendry , Vanessa C. Heppolette , Tae-Wook Koh , Arthur L. Spence
IPC: G09G3/20 , G09G3/00 , G06F3/06 , G09G3/3208 , G06F9/4401 , G09G3/32 , G06F9/451
Abstract: A data processing system can store a long-term history of pixel luminance values in a secure memory and use those values to create burn-in compensation values that are used to mitigate burn-in effect on a display. The long-term history can be updated over time with new, accumulated pixel luminance values.
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公开(公告)号：US10403192B2
公开(公告)日：2019-09-03
申请号：US15655591
申请日：2017-07-20
Applicant: APPLE INC.
Inventor： Marc Albrecht , Mahesh B. Chappalli , Christopher P. Tann , Jim C. Chou , Guy Cote
IPC: G09G3/20 , G09G3/32 , G09G3/36 , G09G3/3208
Abstract: Devices and methods for error diffusion and spatiotemporal dithering are provided. By way of example, a method of operating a display includes receiving a pixel input, a set of pixel coordinates, and a current frame number. A kernel and a particular kernel bit of the kernel is selected from a set of kernels, based upon the pixel input, the pixel coordinates, the frame number, or any combination thereof. A dithered output is determined based at least in part upon the kernel bit. When the display is in a diamond pixel configuration, the dithered output is applied in accordance with a diamond pattern formed by red, blue, or red and blue pixel channels.
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公开(公告)号：US20190172380A1
公开(公告)日：2019-06-06
申请号：US16269439
申请日：2019-02-06
Applicant: Apple Inc.
Inventor： Christopher P. Tann , Taesung Kim , Sandro H. Pintz
IPC: G09G3/20
CPC classification number: G09G3/20 , G09G2310/0254 , G09G2310/063 , G09G2310/08 , G09G2320/0204 , G09G2340/0435
Abstract: System and method for improving displayed image quality of an electronic display that displays a first image frame by applying a first voltage to a display pixel and a second image frame directly before the first image frame by applying a second voltage to the display pixel. A display pipeline is communicatively coupled to the electronic display and receives first image data corresponding with the first image frame, where the image data includes a first grayscale value corresponding with the display pixel. Additionally the display pipeline determines an inversion balancing grayscale offset based at least in part on the first grayscale value when polarity of the first voltage and polarity of the second voltage are the same and determines magnitude of the first voltage by applying the inversion balancing grayscale offset to the first grayscale value to reduce likelihood of a perceivable luminance spike when displaying the first image frame.
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公开(公告)号：US10261632B2
公开(公告)日：2019-04-16
申请号：US15655560
申请日：2017-07-20
Applicant: Apple Inc.
Inventor： Peter F. Holland , Christopher P. Tann , Malcolm D. Gray
Abstract: One embodiment describes an electronic display that includes display driver circuitry that displays at least a first image frame and a second image frame on the electronic device using a first display pixel and a second display pixel. A timing controller of the electronic display determines at least a first insertion time for a first intra-frame pause for the first image frame and a second insertion time for a second intra-frame pause for the second image frame, which pause rendering of image data to allow the touch sensing circuitry to detect user interaction. The insertion times for the first and second intra-frame pauses are varied from one another by a determined step size.
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Patent Agency Ranking
公开(公告)号：US09984608B2
公开(公告)日：2018-05-29
申请号：US14986181
申请日：2015-12-31
Applicant: Apple Inc.
Inventor： Paolo Sacchetto , Christopher P. Tann , Taesung Kim , Sandro H. Pintz , Marc Albrecht , Chaohao Wang , David S. Zalatimo , Fenghua Zheng , Zhibing Ge
CPC classification number: G09G3/20 , G09G2310/0254 , G09G2310/063 , G09G2310/08 , G09G2320/0204 , G09G2340/0435
Abstract: System and method for improving displayed image quality of an electronic display that displays a first image frame by applying a first voltage to a display pixel and a second image frame directly before the first image frame by applying a second voltage to the display pixel. A display pipeline is communicatively coupled to the electronic display and receives first image data corresponding with the first image frame, where the image data includes a first grayscale value corresponding with the display pixel. Additionally the display pipeline determines an inversion balancing grayscale offset based at least in part on the first grayscale value when polarity of the first voltage and polarity of the second voltage are the same and determines magnitude of the first voltage by applying the inversion balancing grayscale offset to the first grayscale value to reduce likelihood of a perceivable luminance spike when displaying the first image frame.
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公开(公告)号：US20180081491A1
公开(公告)日：2018-03-22
申请号：US15655560
申请日：2017-07-20
Applicant: Apple Inc.
Inventor： Peter F. Holland , Christopher P. Tann , Malcolm D. Gray
CPC classification number: G06F3/0418 , G06F3/0416 , G09G3/2011 , G09G3/3648 , G09G5/12 , G09G5/363 , G09G2310/08 , G09G2320/0233 , G09G2354/00 , G09G2360/12
Abstract: One embodiment describes an electronic display that includes display driver circuitry that displays at least a first image frame and a second image frame on the electronic device using a first display pixel and a second display pixel. A timing controller of the electronic display determines at least a first insertion time for a first intra-frame pause for the first image frame and a second insertion time for a second intra-frame pause for the second image frame, which pause rendering of image data to allow the touch sensing circuitry to detect user interaction. The insertion times for the first and second intra-frame pauses are varied from one another by a determined step size.
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公开(公告)号：US20180068605A1
公开(公告)日：2018-03-08
申请号：US15812868
申请日：2017-11-14
Applicant: Apple Inc.
Inventor： Christopher P. Tann , Taesung Kim , Sandro H. Pintz
IPC: G09G3/20
CPC classification number: G09G3/20 , G09G2310/0254 , G09G2310/063 , G09G2310/08 , G09G2320/0204 , G09G2340/0435
Abstract: System and method for improving displayed image quality of an electronic display that displays a first image frame by applying a first voltage to a display pixel and a second image frame directly before the first image frame by applying a second voltage to the display pixel. A display pipeline is communicatively coupled to the electronic display and receives first image data corresponding with the first image frame, where the image data includes a first grayscale value corresponding with the display pixel. Additionally the display pipeline determines an inversion balancing grayscale offset based at least in part on the first grayscale value when polarity of the first voltage and polarity of the second voltage are the same and determines magnitude of the first voltage by applying the inversion balancing grayscale offset to the first grayscale value to reduce likelihood of a perceivable luminance spike when displaying the first image frame.
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公开(公告)号：US20160232833A1
公开(公告)日：2016-08-11
申请号：US14617564
申请日：2015-02-09
Applicant: APPLE INC.
Inventor： Chaohao Wang , David S. Zalatimo , Lei Zhao , Christopher P. Tann , Paolo Sacchetto , Sandro H. Pintz , Yi Huang , Jun Qi
IPC: G09G3/20
CPC classification number: G09G3/2092 , G09G3/20 , G09G2310/0254 , G09G2310/04 , G09G2310/08 , G09G2320/0266 , G09G2340/0435
Abstract: One embodiment describes an electronic display that displays image frames with a first refresh rate or a second refresh rate, in which the second refresh rate is lower than the first refresh rate; a display driver that writes the image frames by applying voltage to a display panel; and a timing controller that receives first image data from an image source, in which the first image data describes a first image frame and a first desired refresh rate equal to the second fresh rate; and that instructs the display driver to apply a first set of voltage polarities to the display panel to display first image frame at the first refresh rate and to apply a second set of voltage polarities to the display the first image frame at the second refresh rate when polarity of inversion imbalance accumulated is equal to polarity of the first set of voltage polarities.
Abstract translation: 一个实施例描述了一种电子显示器，其显示具有第一刷新率或第二刷新率的图像帧，其中第二刷新率低于第一刷新率; 通过向显示面板施加电压来写入图像帧的显示驱动器; 以及定时控制器，其从图像源接收第一图像数据，其中第一图像数据描述第一图像帧和等于第二新鲜率的第一期望刷新率; 并且指示显示驱动器将第一组电压极性施加到显示面板以以第一刷新率显示第一图像帧，并且以第二刷新率将第二组电压极性施加到第一图像帧， 累积的反转不平衡极性等于第一组电压极性的极性。
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公开(公告)号：US20160071485A1
公开(公告)日：2016-03-10
申请号：US14477454
申请日：2014-09-04
Applicant: Apple Inc.
Inventor： Brijesh Tripathi , Peter F. Holland , Marc Albrecht , Christopher P. Tann
IPC: G09G5/10
CPC classification number: G09G5/10 , G09G3/2044 , G09G3/3406 , G09G5/12 , G09G5/36 , G09G2320/0646 , G09G2330/021 , G09G2340/10 , G09G2360/144 , G09G2370/04
Abstract: Systems, apparatuses, and methods for synchronizing backlight adjustments to frame updates in a display pipeline. A change in the ambient light is detected and as a result, backlight settings are adjusted. To offset a reduction in the backlight, the color intensity in the frames is increased. While the change in ambient light is detected asynchronously, the adjustment to the backlight settings and color intensity is synchronized to a frame update via a virtual channel for the auxiliary channel of the display interface.
Abstract translation: 用于在显示管道中将背光调节与帧更新同步的系统，装置和方法。 检测到环境光的变化，结果调整背光设置。 为了抵消背光的降低，帧中的颜色强度增加。 当环境光的变化被异步检测时，对背光设置和颜色强度的调节通过用于显示接口的辅助通道的虚拟通道被同步到帧更新。
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