公开(公告)号：US20160170702A1

公开(公告)日：2016-06-16

申请号：US14836645

申请日：2015-08-26

Applicant: Apple Inc.

Inventor： Jun Jiang ,  Cheng Chen ,  Gabriel Marcu ,  Jiaying Wu

IPC: G06F3/14 ,  H01L27/12 ,  G02F1/1335 ,  G02F1/1368 ,  G06T5/00 ,  G06T1/20

CPC classification number: G06F3/1423 ,  G02F1/133528 ,  G02F1/13471 ,  G02F1/1362 ,  G02F1/1368 ,  G02F2202/28 ,  G06T1/20 ,  G06T5/00 ,  G09G3/3611 ,  G09G2300/023 ,  G09G2320/066 ,  G09G2340/00 ,  G09G2360/16 ,  H01L27/124 ,  H01L27/1259

Abstract: Systems and methods for reducing or eliminating image artifacts on a dual-layer liquid crystal display (LCD). By way of example, a system includes a first display panel and a second display panel. The system includes a processor coupled to the first display panel and the second display panel, and configured to generate a first image, and to generate a second image to be displayed on the first display panel based on the first image. The processor is configured to interpolate the second image. Interpolating the second image includes adjusting the second image according to a generated objective function bounded by a first constraint. The processor is configured to filter the second image, and to generate a third image to be displayed on the second display panel based on the first image and the second image. The third image is generated to prevent image artifacts on the second display panel.

Abstract translation: 用于减少或消除双层液晶显示器（LCD）上的图像伪影的系统和方法。 作为示例，系统包括第一显示面板和第二显示面板。 该系统包括耦合到第一显示面板和第二显示面板的处理器，并且被配置为生成第一图像，并且基于第一图像生成要在第一显示面板上显示的第二图像。 处理器被配置为内插第二图像。 插值第二图像包括根据由第一约束界定的生成的目标函数来调整第二图像。 处理器被配置为过滤第二图像，并且基于第一图像和第二图像生成要在第二显示面板上显示的第三图像。 生成第三个图像以防止第二个显示面板上的图像伪像。

公开(公告)号：US10957239B2

公开(公告)日：2021-03-23

申请号：US16146627

申请日：2018-09-28

Applicant: Apple Inc.

Inventor： Kenneth I. Greenebaum ,  Gabriel Marcu ,  Arkady Ten ,  Ian C. Hendry

IPC: G09G3/20

Abstract: An output device is set to a first state in which a value of a first characteristic of the output device is set to a first value. Pixel adjustment values for plural gray levels are set to first pixel adjustment values in response to the output device being set to the first state. The value of the first characteristic is changed from the first value to a second value to set the output device to a second state. The pixel adjustment values for the plural gray levels are updated to second pixel adjustment values in response to the output device being set to the second state. The second pixel adjustment values are derived based on the second value of the first characteristic. Pixel values applied to a plurality of pixels of the output device are corrected based on the second pixel adjustment values.

公开(公告)号：US10909899B2

公开(公告)日：2021-02-02

申请号：US16428213

申请日：2019-05-31

Applicant: Apple Inc.

Inventor： Gabriel Marcu ,  Shahram Peyvandi ,  Lu Zhang

IPC: G09G3/20

Abstract: A display panel is initialized to a native state where no color corrections are applied. A native response of the display panel is measured in the native state. One or more calibration operations for the display panel are performed based on the measured native response and calibration data is generated. The generated calibration data is stored in a timing controller (TCON) chip of the display panel. One or more chromaticity values of the display panel are measured while driving the display panel in a calibrated state based on the generated calibration data. The measured chromaticity value of the display panel is stored as Extended Display Identification Data (EDID) or DisplayID data in the TCON.

公开(公告)号：US10672363B2

公开(公告)日：2020-06-02

申请号：US16146714

申请日：2018-09-28

Applicant: Apple Inc.

Inventor： Gabriel Marcu ,  Ian C. Hendry ,  Jean-François Mulé

IPC: G09G5/02 ,  G09G5/00 ,  G06T11/00 ,  H04N1/60 ,  H04N5/57 ,  H04N5/58 ,  H04N9/73 ,  G06T5/00

Abstract: Pixel values of image content are lowered in response to setting a display mode so that the lowered pixel values of the first image content are mapped to a first color gamut. The first color gamut is defined by a nominal range space and is lower than a native color gamut of a display panel. The native color gamut is defined by the nominal range space and an extended range space that is outside of the first color gamut. One or more parameters are obtained for the image content in the display mode. A color boosting operation is performed for, from among the lowered pixel values of the image content in the nominal range space, each of first pixel values that meet one of the parameters. A color associated with each of the first pixel values is proportionally enhanced without changing a corresponding hue to utilize the extended range space.

公开(公告)号：US20200105221A1

公开(公告)日：2020-04-02

申请号：US16146714

申请日：2018-09-28

Applicant: Apple Inc.

Inventor： Gabriel Marcu ,  Ian C. Hendry ,  Jean-François Mulé

IPC: G09G5/02 ,  G06T5/00

Abstract: Pixel values of image content are lowered in response to setting a display mode so that the lowered pixel values of the first image content are mapped to a first color gamut. The first color gamut is defined by a nominal range space and is lower than a native color gamut of a display panel. The native color gamut is defined by the nominal range space and an extended range space that is outside of the first color gamut. One or more parameters are obtained for the image content in the display mode. A color boosting operation is performed for, from among the lowered pixel values of the image content in the nominal range space, each of first pixel values that meet one of the parameters. A color associated with each of the first pixel values is proportionally enhanced without changing a corresponding hue to utilize the extended range space.

公开(公告)号：US20200098333A1

公开(公告)日：2020-03-26

申请号：US16143043

申请日：2018-09-26

Applicant: Apple Inc.

Inventor： Gabriel Marcu

IPC: G09G5/04 ,  G06T7/90 ,  G09G5/06 ,  G09G5/10

Abstract: First color response values of vertices of a first unit cube defined within a cubic color output space of the display device are measured. For each of first intermediate values determined based on the measured first color response values, RGB adjustment values are calculated by tetrahedral decomposition and interpolation so that each calculated RGB adjustment value is within a boundary defined by the first unit cube. When boundary defined by the first unit cube is reached, a second unit cube is defined within the cubic color output space, wherein a first vertex of a plurality of vertices of the second unit cube corresponds to the calculated RGB adjustment values of a previous intermediate value that is one of the first intermediate values. Second color response values corresponding to the plurality of vertices of the second unit cube except the first vertex are measured.

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

IPC: G09G5/00 ,  G09G3/20 ,  G09G5/02 ,  G09G3/34

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.

公开(公告)号：US09541794B2

公开(公告)日：2017-01-10

申请号：US14502199

申请日：2014-09-30

Applicant: Apple Inc.

Inventor： Jiaying Wu ,  Wei Chen ,  Cheng Chen ,  William Mathews Riedel ,  Jun Qi ,  John Z. Zhong ,  Gabriel Marcu

IPC: G02F1/1347 ,  G02F1/1335 ,  G02F1/13363 ,  G02F1/1368

CPC classification number: G02F1/13363 ,  G02F1/133514 ,  G02F1/133528 ,  G02F1/1336 ,  G02F1/13471 ,  G02F1/1368 ,  G02F2001/133614 ,  G02F2413/13 ,  G02F2413/14

Abstract: A display may have a first stage such as a color liquid crystal display stage and a second stage such as a monochromatic liquid crystal display stage that are coupled in tandem so that light from a backlight passes through both stages. The dynamic range of the display may be enhanced by using the second stage to perform local dimming operations. The pixel pitch of the second stage may be greater than the pixel pitch of the first stage to ease alignment tolerances and reduce image processing complexity. The color stage and monochromatic stages may share a polarizer. A color filter in the color stage may have an array of red, green, and blue elements or an array of white, red, green, and blue elements. The color stage may be a fringe field display and the monochrome stage may be an in-plane switching display or a twisted nematic stage.

Abstract translation: 显示器可以具有第一级，例如彩色液晶显示级和第二级，例如单色液晶显示级，其串联耦合，使得来自背光的光通过两级。 可以通过使用第二级来执行局部调光操作来增强显示器的动态范围。 第二级的像素间距可以大于第一级的像素间距，以减轻对准公差并降低图像处理的复杂性。 彩色舞台和单色舞台可以共享偏振器。 彩色舞台中的彩色滤光片可以具有红色，绿色和蓝色元素的阵列或白色，红色，绿色和蓝色元素的阵列。 彩色舞台可以是边缘场显示，并且单色舞台可以是平面内切换显示或扭曲向列舞台。

公开(公告)号：US09275607B2

公开(公告)日：2016-03-01

申请号：US13683201

申请日：2012-11-21

Applicant: Apple Inc.

Inventor： Marc Albrecht ,  Ulrich Barnhoefer ,  Gabriel Marcu ,  Sandro H. Pintz ,  Keith Cox

IPC: G09G5/02 ,  G09G5/06 ,  G09G3/20

CPC classification number: G09G5/06 ,  G09G3/2003 ,  G09G2320/0242 ,  G09G2320/041 ,  G09G2320/0666 ,  G09G2320/0693 ,  G09G2360/144

Abstract: An electronic device may include a display and display control circuitry. The display may be calibrated to compensate for changes in display temperature. Display calibration information may be obtained during manufacturing and may be stored in the electronic device. The display calibration information may include adjustment factors configured to adjust incoming pixel values to reduce temperature-related color shifts. During operation of the electronic device, display control circuitry may determine the temperature at different locations on the display. The display control circuitry may determine the temperature at a given display pixel using the temperatures at the different locations on the display. The display control circuitry may determine adjustment values based on the temperature at the display pixel. The display control circuitry may apply the adjustment values to incoming pixel values to obtain adapted pixel values, which may in turn be provided to the display pixel.

Abstract translation: 电子设备可以包括显示和显示控制电路。 可以校准显示器以补偿显示温度的变化。 显示校准信息可以在制造过程中获得，并且可以存储在电子设备中。 显示校准信息可以包括被配置为调整输入像素值以减少温度相关颜色偏移的调节因子。 在电子设备的操作期间，显示控制电路可以确定显示器上不同位置处的温度。 显示控制电路可以使用显示器上不同位置处的温度来确定给定显示像素处的温度。 显示控制电路可以基于显示像素处的温度来确定调整值。 显示控制电路可以将调整值应用于输入像素值，以获得适应的像素值，其可依次提供给显示像素。

公开(公告)号：US20140333683A1

公开(公告)日：2014-11-13

申请号：US14270693

申请日：2014-05-06

Applicant: Apple Inc.

Inventor： Jun Qi ,  Gabriel Marcu ,  Victor H. Yin

IPC: G09G3/32

CPC classification number: G09G3/3233 ,  G09G2300/0452 ,  G09G2340/06 ,  G09G2360/144

Abstract: An electronic device may include a display having an array of display pixels. Each display pixel may include a red subpixel, a green subpixel, a blue subpixel, and a white subpixel. The display may be controlled using display control circuitry. The display control circuitry may convert frames of display data from a red-green-blue (RGB) color space to a red-green-blue-white (RGBW) color space. The display control circuitry may supply data signals corresponding to a frame of display data in the RGBW color space to the array of display pixels. A frame of display data may be converted from the RGB color space to the RGBW color space based on an amount of color saturation in the frame of display data, based on information identifying what code is running on control circuitry in the electronic device, and/or based on ambient lighting condition information.

Abstract translation: 电子设备可以包括具有显示像素阵列的显示器。 每个显示像素可以包括红色子像素，绿色子像素，蓝色子像素和白色子像素。 可以使用显示控制电路来控制显示。 显示控制电路可以将显示数据的帧从红 - 绿 - 蓝（RGB）颜色空间转换为红 - 绿 - 蓝 - 白（RGBW）色空间。 显示控制电路可以将与RGBW颜色空间中的显示数据的帧相对应的数据信号提供给显示像素阵列。 基于识别在电子设备中的控制电路上运行的代码的信息，可以基于显示数据的帧中的色彩饱和量，从RGB颜色空间将RGB帧颜色空间转换为RGBW颜色空间，和/ 或基于环境照明条件信息。