公开(公告)号：US20180330674A1

公开(公告)日：2018-11-15

申请号：US15814262

申请日：2017-11-15

Applicant: Apple Inc.

Inventor： Teun R. Baar ,  Nicolas P. Bonnier ,  Jiaying Wu ,  Marc Albrecht

IPC: G09G3/34 ,  H05B37/02 ,  G06T11/00 ,  G06T5/00

CPC classification number: G09G3/3406 ,  G06T5/009 ,  G06T11/001 ,  G09G2320/0242 ,  G09G2320/0271 ,  G09G2320/0626 ,  G09G2320/0666 ,  G09G2330/021 ,  G09G2330/045 ,  G09G2360/144 ,  G09G2360/16 ,  H05B33/086 ,  H05B37/0218

Abstract: An electronic device may be provided with a display. Standard and high dynamic range content may be produced by content generators operating on control circuitry. In a first mode of operation, standard dynamic range content is displayed. In a second mode of operation, high dynamic range content is displayed. In a third mode of operation, standard dynamic range content and high dynamic range content are simultaneously displayed. Tone mapping parameters may be produced by a tone mapping engine for use in displaying the standard and high dynamic range content. The tone mapping parameters may be selected based on factors such as ambient light level, user brightness setting, content statistics, and display characteristics. Tone mapping parameters may be selected to accommodate simultaneous display of standard and high dynamic range content and to accommodate transitions between standard and high dynamic range content.

公开(公告)号：US10019926B2

公开(公告)日：2018-07-10

申请号：US14862026

申请日：2015-09-22

Applicant: Apple Inc.

Inventor： Farnaz Agahian ,  Jiaying Wu ,  Zhang Jia ,  Cheng Chen

IPC: G09G3/20 ,  G01J3/46 ,  G01J3/50 ,  G01J1/42

CPC classification number: G09G3/2003 ,  G01J1/4204 ,  G01J3/50 ,  G01J3/505 ,  G01J2003/467 ,  G09G2320/0233 ,  G09G2320/0242 ,  G09G2320/0693 ,  G09G2340/06 ,  G09G2360/144

Abstract: An electronic device may be provided with a display mounted in a housing. A color sensing ambient light sensor may measure the color of ambient light. The color sensing ambient light sensor may produce sensor output signals in a device-dependent color space. Control circuitry in the electronic device may convert the sensor output signals from the device-dependent color space to a device-independent color space using a color converting matrix. The color converting matrix may be determined using stored training data. The training data may include color data for different training light sources. The training data may be weighted to selectively control the influence of the training data on the color converting matrix. The training data may be weighted based on a distance between the training color data and a target color in the detected ambient light.

公开(公告)号：US09984658B2

公开(公告)日：2018-05-29

申请号：US15244940

申请日：2016-08-23

Applicant: Apple Inc.

Inventor： Nicolas P. Bonnier ,  Jiaying Wu ,  Can Jin ,  Roy J. E. M. Raymann

IPC: G09G5/04 ,  G09G5/06

CPC classification number: G09G5/04 ,  G09G5/026 ,  G09G5/06 ,  G09G2320/0242 ,  G09G2320/0613 ,  G09G2320/0686 ,  G09G2320/08 ,  G09G2340/06 ,  G09G2340/14 ,  G09G2354/00

Abstract: An electronic device may include a display and control circuitry that operates the display. The control circuitry may be configured to daltonize input images to produce daltonized output images that allow a user with color vision deficiency to see a range of detail that the user would otherwise miss. The daltonization algorithm that the control circuitry applies to input images may be specific to the type of color vision deficiency that the user has. The daltonization strength that the control circuitry applies to the image or portions of the image may vary based on image content. For example, natural images may be daltonized with a lower daltonization strength than web browsing content, which ensures that memory colors such as blue sky and green grass do not appear unnatural to the user while still allowing important details such as hyperlinks and highlighted text to be distinguishable.

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：US20170303365A1

公开(公告)日：2017-10-19

申请号：US15334094

申请日：2016-10-25

Applicant: Apple Inc.

Inventor： Cheng Chen ,  Jiaying Wu ,  Lu Zhang ,  David A. Doyle ,  Christopher E. Glazowski ,  Adria Fores Herranz ,  Chenhua You ,  Wei Chen ,  Jun Qi ,  John Z. Zhong

IPC: H05B33/08

CPC classification number: H05B33/0872 ,  G02F1/133621 ,  G02F2001/133614 ,  G09G3/3413 ,  G09G2320/0666 ,  G09G2360/144

Abstract: An electronic device may be provided with a display having a backlight with light sources of different colors. The electronic device may include a color ambient light sensor that measures the color of ambient light and control circuitry that adjusts the color of light emitted from the backlight based on the color of ambient light. The light sources may include at least first and second light-emitting diodes that emit light having different color temperatures. The control circuitry may adjust the intensity of light emitted from the first light-emitting diode relative to the intensity of light emitted from the second light-emitting diode to produce a backlight color that more closely matches the color of ambient light. The first and second light-emitting diodes may include an ultraviolet light-emitting diode die and a blue light-emitting diode die that are mounted in a common semiconductor package.

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：US09530362B2

公开(公告)日：2016-12-27

申请号：US14673667

申请日：2015-03-30

Applicant: Apple Inc.

Inventor： Cheng Chen ,  Jiaying Wu ,  Will Riedel ,  Wei Chen ,  John Z. Zhong

IPC: G09G3/34 ,  G09G3/20 ,  G09G5/02

CPC classification number: G09G5/02 ,  G09G3/2003 ,  G09G3/3413 ,  G09G2320/0242 ,  G09G2320/0626 ,  G09G2320/066 ,  G09G2320/0666 ,  G09G2320/08 ,  G09G2360/144

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.

Abstract translation: 电子设备可以包括具有显示像素阵列并具有控制显示器的操作的显示控制电路的显示器。 显示控制电路可以以不同的模式操作显示器。 在纸张模式中，显示控制电路可以使用存储的光谱反射率数据来调整显示颜色，使得颜色看起来像在打印纸上一样。 在环境光水平低于阈值的低光模式中，可以调节从显示器发射的光以模拟白炽光源的外观。 在亮光模式下，当环境光线水平超过阈值时，可以调节从显示器发出的光线，以使亮度下的可读性最大化。 显示器的目标白点可以根据显示器正在操作的模式进行调整。