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公开(公告)号：US20160246430A1
公开(公告)日：2016-08-25
申请号：US14630280
申请日：2015-02-24
Applicant: APPLE INC.
Inventor： Chaohao Wang , Paolo Sacchetto , Zhibing Ge , Cheng Chen , Shih-Chyuan Fan Jiang
CPC classification number: G06F3/0416 , G06F3/0412 , G06F3/044 , G09G3/2011 , G09G3/3648 , G09G5/12 , G09G2310/027 , G09G2320/0266 , G09G2320/0271 , G09G2320/103 , G09G2340/16
Abstract: One embodiment describes an electronic display. The electronic display includes display driver circuitry that display an image frame on the electronic device using a first display pixel and a second display pixel, touch sensing circuitry that detect user interaction with the electronic display, and a timing controller. The timing controller receives image data, in which the image data describes a target grayscale value of the first pixel and the second pixel to display the image frame, instructs the display driver circuitry to display a first portion of the image frame by writing the image data to the first display pixel, instructs the touch sensing circuitry to determine whether a user touch is present on a surface of the electronic display after the first portion of the image frame is displayed, determines grayscale value displayed by the second display pixel to display a previous image frame, and instructs the display driver circuitry to display a second portion of the image frame by writing adjusted image data to the second display pixel when the displayed grayscale value differs from the target grayscale value of the second pixel by more than a threshold amount.
Abstract translation: 一个实施例描述了电子显示器。 电子显示器包括使用第一显示像素和第二显示像素在电子设备上显示图像帧的显示驱动器电路，检测用户与电子显示器的交互的触摸感测电路以及定时控制器。 定时控制器接收图像数据，其中图像数据描述第一像素的目标灰度值和用于显示图像帧的第二像素，指示显示驱动器电路通过写入图像数据来显示图像帧的第一部分 指示触摸感测电路在显示图像帧的第一部分之后确定用户触摸是否存在于电子显示器的表面上，确定由第二显示像素显示的灰度值以显示前一个 并且当显示的灰度值与第二像素的目标灰度值不同于阈值时，通过将调整后的图像数据写入第二显示像素来指示显示驱动器电路显示图像帧的第二部分。
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公开(公告)号：US20160125785A1
公开(公告)日：2016-05-05
申请号：US14527672
申请日：2014-10-29
Applicant: Apple Inc.
Inventor： Chaohao Wang , Cheng Chen , Shih-Chyuan Fan Jiang , Zhibing Ge
CPC classification number: G09G5/02 , G09G3/3648 , G09G5/001 , G09G5/391 , G09G2320/103 , G09G2340/0435
Abstract: A display may have an array of pixels. The display may be controlled using display driver circuitry. The display driver circuitry may analyze image data to be displayed on the array. When static content is detected, the rate at which the pixels are refreshed may be adjusted to conserve power. If a static image is detected, the gate lines may be asserted at a lower refresh rate than if moving content is detected. To avoid visible artifacts, the display driver circuitry may use temporal and spatial refresh rate buffers. Temporal buffers ensure that refresh rates are changed gradually as a function of time, thereby minimizing flicker. Spatial refresh rate buffers are used to provide a smooth transition between low refresh rate and high refresh rate regions in a display as a function of position.
Abstract translation: 显示器可以具有像素阵列。 可以使用显示驱动器电路来控制显示。 显示驱动器电路可以分析要在阵列上显示的图像数据。 当检测到静态内容时，可以调整像素刷新的速率以节省功率。 如果检测到静态图像，则可以以比检测到移动内容更低的刷新率来确定栅极线。 为了避免可见的伪影，显示驱动器电路可以使用时间和空间刷新率缓冲器。 时间缓冲器确保刷新率随着时间的推移而逐渐变化，从而使闪烁最小化。 空间刷新率缓冲器用于提供作为位置的函数的显示器中的低刷新率和高刷新频率区域之间的平滑过渡。
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公开(公告)号：US20150346528A1
公开(公告)日：2015-12-03
申请号：US14494498
申请日：2014-09-23
Applicant: Apple Inc.
Inventor： Zhibing Ge , Enkhamgalan Dorjgotov , Cheng Chen , Lei Zhao , Chun-Yao Huang , Shih-Chang Chang , Shih-Chyuan Fan Jiang
IPC: G02F1/1368 , G02F1/1343 , G02F1/1362
CPC classification number: G02F1/13624 , G02F1/134363 , G02F1/13439 , G02F1/136213 , G02F1/136277 , G02F1/1368
Abstract: A liquid crystal display may have a layer of liquid crystal material. The display may have an array of display pixel circuits. The display pixel circuits may each include a display pixel electrode that applies electric fields to a corresponding portion of the liquid crystal material. Thin-film transistor circuitry and other structures in the display pixels may control operation of the display pixels circuits. The thin-film transistor circuitry may be configured to handle operation of the display at multiple refresh rates. To accommodate multiple refresh rates, each pixel circuit may include a pair of transistors. A first transistor is used to apply data signals from a data line to the display pixel electrode. A storage capacitor is used to maintain the data signal on the electrode. The second transistor may be used to adjust the capacitance of the storage capacitor depending on the refresh rate of the display.
Abstract translation: 液晶显示器可以具有液晶材料层。 显示器可以具有显示像素电路的阵列。 显示像素电路可以各自包括将电场施加到液晶材料的对应部分的显示像素电极。 显示像素中的薄膜晶体管电路和其他结构可以控制显示像素电路的操作。 薄膜晶体管电路可以被配置为以多个刷新速率处理显示器的操作。 为了适应多个刷新率，每个像素电路可以包括一对晶体管。 第一晶体管用于将数据信号从数据线施加到显示像素电极。 使用存储电容器来维持电极上的数据信号。 第二晶体管可以用于根据显示器的刷新率来调整存储电容器的电容。
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公开(公告)号：US20210350752A1
公开(公告)日：2021-11-11
申请号：US17223903
申请日：2021-04-06
Applicant: Apple Inc.
Inventor： Zhibing Ge , Chengrui Le , Yuechen Wu , Xiaokai Li , Lingyu Hong , Chaohao Wang , Shih-Chyuan Fan Jiang
Abstract: Certain embodiments are directed to techniques (e.g., a method, an apparatus, and non-transitory computer readable medium storing code or instructions executable by one or more processors) for mitigating the flicker on the displays at low driving frequencies due to drops of the voltage holding ratio of the materials for the display. The techniques to compensate for flicker in a liquid crystal display can include generating a dynamic waveform for the backlight of the display. The dynamic waveform can be synchronized with the driving rate of the liquid crystal display such that the luminosity of the backlight increases during periods when the voltage-holding ratio drops in the materials of the display. In this way, a liquid crystal material can be utilized in a display to generate reduced power consumption with liquid crystal rate minimizing the flicker in response to the drops of the voltage-holding ratio.
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公开(公告)号：US11099386B1
公开(公告)日：2021-08-24
申请号：US16283550
申请日：2019-02-22
Applicant: Apple Inc.
Inventor： Hyungryul Choi , Lei Zhao , Chaohao Wang , Enkhamgalan Dorjgotov , Shih-Chyuan Fan Jiang , Zhibing Ge , Graham B. Myhre
IPC: G02B27/01 , G02F1/1335 , G02F1/1343 , G02F1/1337
Abstract: An optical system may include equipment with a housing that is configured to receive external equipment such as a cellular telephone. The external equipment may have a display mounted on a front face of the external equipment and may have additional components such as a front-facing camera. Communications circuitry in the equipment may support wired and wireless communications with the external equipment. An optical combiner in the equipment may be used to combine display image light emitted from pixels in the display with real-world image light received from external objects. The optical combiner may have a reflector with a concave lens shape that focuses light from the display towards eye boxes in which a viewer's eyes are located. The reflector may be a partial mirror or a reflective polarizer. The reflective polarizer and additional components may be used in implementing a tunable tint layer.
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Patent Agency Ranking
公开(公告)号：US10955724B2
公开(公告)日：2021-03-23
申请号：US15931430
申请日：2020-05-13
Applicant: Apple Inc.
Inventor： Graham B. Myhre , Giovanni Carbone , Shih-Chyuan Fan Jiang , Sheng Zhang , Chaohao Wang
Abstract: An electronic device such as a head-mounted device may have displays that are viewable by the eyes of a viewer through adjustable lenses. The adjustable lenses may be liquid crystal lenses. A camera and other sensors in the head-mounted device may monitor the eyes of the user and gather other information. Control circuitry in the head-mounted device may control the adjustable lenses based on measured characteristics of the eyes of the user such as interpupillary distance and direction-of-view. The control circuitry may match the distance between the centers of the adjustable lenses to the measured interpupillary distance and may align the lens centers with the measured direction-of-view. The adjustable lenses may have transparent electrodes that are supplied with time-varying control signals by the control circuitry.
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公开(公告)号：US20200081527A1
公开(公告)日：2020-03-12
申请号：US16565298
申请日：2019-09-09
Applicant: Apple Inc.
Inventor： Mehmet Agaoglu , Cheng Chen , Harsha Shirahatti , Zhibing Ge , Shih-Chyuan Fan Jiang , Nischay Goel , Jiaying Wu , William Sprague
Abstract: Aspects of the subject technology relate to gaze-dependent visual encryption of electronic device displays. Each display frame that is displayed on the electronic device display may include a clear-display region around the user's gaze location and an obscured region outside the clear-display region. In this way, only the display content that the user is actively viewing is recognizable and understandable and an onlooker such as an unwanted observer looking over the user's shoulder is unable to understand what is displayed. The obscured region of each display frame may be generated such that the overall look and structure of that region is unchanged, but the content is unintelligible. In this way, the visual experience of the user is not disrupted or distracted by the visual encryption and the eye of the onlooker is not guided to the clear-display region by the visual encryption.
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公开(公告)号：US10520763B2
公开(公告)日：2019-12-31
申请号：US15703843
申请日：2017-09-13
Applicant: Apple Inc.
Inventor： Shih-Chyuan Fan Jiang , Zhibing Ge , Lei Zhao , Chaohao Wang , Paul P. Lu
IPC: G02F1/1333 , G02F1/1337 , G02F1/1343 , G09G3/36 , H01L27/12 , H01L29/66 , G02F1/1368 , G02F1/1362
Abstract: Liquid crystal display systems and methods of operation are described. In an embodiment, a liquid crystal display pixel cell includes an insulation layer spanning over a passivation layer and the plurality of signal electrodes such that it separates the signal electrodes from polymer alignment layer for the liquid crystal. In an embodiment, a method of operating a liquid crystal display panel includes temporal compensation of the Vcom value as a function of time and one or more operating parameters.
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公开(公告)号：US20170293174A1
公开(公告)日：2017-10-12
申请号：US15260082
申请日：2016-09-08
Applicant: Apple Inc.
Inventor： Chia Hsuan Tai , Cheng Chen , Da Yu , Enkhamgalan Dorjgotov , Sang Un Choi , Shih-Chyuan Fan Jiang , Tae Woon Cha , Yeon Sik Ham , Yuan Chen , Zhibing Ge , Hossein Nemati
IPC: G02F1/1339 , G02F1/1337 , G02F1/1343 , G02F1/1335 , G02F1/1368
Abstract: A liquid crystal display may have main column spacers and subspacer column spacers. The column spacers may have cross shapes formed from overlapping perpendicular rectangular column spacer portions respectively located on a color filter layer and a thin-film transistor layer. The column spacers may have a hybrid configuration in which some of the rectangular portions on the thin-film transistor layer extend vertically and some extend horizontally. Column spacers may be formed from planarization layer material, may be formed from locally thickened portions of a planarization layer, and may have circular shapes.
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公开(公告)号：US20160357046A1
公开(公告)日：2016-12-08
申请号：US15064097
申请日：2016-03-08
Applicant: Apple Inc.
Inventor： Hyungryul J. Choi , Shih-Chyuan Fan Jiang , Giovanni Carbone
IPC: G02F1/139 , F21V8/00 , G02F1/1343 , G02F1/1333 , G02F1/1335
CPC classification number: G02B6/0051 , G02B6/005 , G02F1/13338 , G02F1/1334 , G02F1/133526 , G02F1/133528 , G02F1/1336 , G02F1/134309 , G02F1/13439 , G02F1/1393 , G02F2001/133626 , G02F2001/13793 , G02F2001/294 , G02F2203/50
Abstract: An electronic device may generate content that is to be displayed on a display. The display may have an array of liquid crystal display pixels for displaying image frames of the content. The display may be operated in at least a normal viewing mode, a privacy mode, an outdoor viewing mode, and a power saving mode. The different view modes may exhibit different viewing angles. In one configuration, the display may include a switchable phase retarder that can be selectively activated to help reduce contrast ratios at higher viewing angles. A rotated pixel design that includes one or more groups of parallel fingers can be used to help properly align the low contrast regions. In another configuration, the display may include multiple electrically controlled birefringence (ECB) layers that can be selectively activated to provide a desired cone of vision, a region outside of which exhibits substantially reduced contrast ratios.
Abstract translation: 电子设备可以产生要显示在显示器上的内容。 显示器可以具有用于显示内容的图像帧的液晶显示像素阵列。 显示器可以至少在正常观看模式，隐私模式，室外观看模式和省电模式下操作。 不同的视图模式可以呈现不同的视角。 在一种配置中，显示器可以包括可切换的相位延迟器，其可以选择性地被激活以帮助在较高视角下降低对比度。 可以使用包括一组或多组平行手指的旋转像素设计来帮助正确对准低对比度区域。 在另一种配置中，显示器可以包括多个电控双折射（ECB）层，其可被选择性地激活以提供期望的视锥，其外侧的区域显示出显着降低的对比度。
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