-
公开(公告)号：US20200074910A1
公开(公告)日：2020-03-05
申请号：US16677522
申请日：2019-11-07
Applicant: Apple Inc.
Inventor： Cheng Chen , Deniz Teoman , Jiaying Wu , John Z. Zhong , Jun Jiang
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 spectral characteristics of display light emitted from the display to achieve a desired effect on the human circadian system. For example, the display control circuitry may adjust the spectral characteristics of blue light emitted from the display based on the time of day such that a user's exposure to the display light may result in a circadian response similar to that which would be experienced in natural light. The spectral characteristics of blue light emitted from the display may be adjusted by adjusting the relative maximum power levels provided to blue pixels in the display or by shifting the peak wavelength associated with blue light emitted from the display.
-
公开(公告)号：US10288788B2
公开(公告)日：2019-05-14
申请号：US15451223
申请日：2017-03-06
Applicant: Apple Inc.
Inventor： Cheng Chen , Masato Kuwabara , Christopher L. Boitnott , Jun Qi , Nathan K. Gupta , Victor H. Yin , John Z. Zhong
IPC: G02B1/14 , G02B5/30 , G02B1/18 , G02F1/1335 , G02B1/11 , G02F1/1333
Abstract: Electronic devices may be provided with displays that have polarizers. A polarizer may have a polymer layer that has a portion covered with a dichroic dye to form a polarized region and a portion that is free of dichroic dye to form an unpolarized region. The unpolarized region may be formed by masking the polymer layer during a dye coating process. Masks may be formed from polymers. The shape of the mask may define the shape of the unpolarized region. The mask may be left in place within the polarizer or may be removed from the polarizer during fabrication. Unpolarized regions may also be formed by light bleaching, chemical bleaching, and material removal techniques. Bleached areas may be chemically stabilized. A moisture barrier layer may be incorporated into the polarizer to help prevent the unpolarized region from reverting to a polarized state.
-
公开(公告)号：US20190139512A1
公开(公告)日：2019-05-09
申请号：US16194084
申请日：2018-11-16
Applicant: Apple Inc.
Inventor： Cheng Chen , Jiaying Wu , Will Riedel , Wei Chen , John Z. Zhong
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.
-
公开(公告)号：US10283031B2
公开(公告)日：2019-05-07
申请号：US14848769
申请日：2015-09-09
Applicant: Apple Inc.
Inventor： Adria Fores Herranz , Cheng Chen , Jiaying Wu , Nicholas G. Roland
Abstract: An electronic device may generate content that is to be displayed on a display. The display may have an array of pixels each of which includes subpixels of different colors. The content that is to be displayed on the display may include an object such as a black object that is moved across a background. Due to differences in subpixel values in the background for subpixels of different colors, there is a potential for color motion blur to develop along a trailing edge portion of the object as the object is moved across the background. The electronic device may have a blur abatement image processor that processes the content to reduce color motion blur. The blur abatement image processor may identify which pixels are located in the trailing edge and may adjust subpixel values for pixels in the trailing edge.
-
公开(公告)号：US10261357B2
公开(公告)日：2019-04-16
申请号：US14891941
申请日：2013-05-14
Applicant: Apple Inc.
Inventor： Cheng Chen , Young Cheol Yang , Chul Ho Park
IPC: G02F1/1335 , G02F1/1362 , G02B5/22 , G02F1/1368 , G02B1/111 , G02B5/20 , G02F1/1333
Abstract: An electronic device may have a display such as a liquid crystal display. A color filter layer may be formed on a display layer such as a transparent substrate layer. The color filter layer may include an array of color filter elements on a central portion of a surface of the transparent substrate layer. The color filter layer may include a peripheral color filter of a single color that at least partially surrounds the color filter elements on the central portion of the inner surface. In an inactive portion of the display, an opaque masking material may be formed over the peripheral color filter. In an active portion of the display the opaque masking material may form a grid that covers interfaces between adjacent color filter elements. The peripheral color filter may completely cover the surface of the substrate in the entire inactive portion of the display.
-
Patent Agency Ranking
公开(公告)号：US10192519B2
公开(公告)日：2019-01-29
申请号：US15388416
申请日：2016-12-22
Applicant: Apple Inc.
Inventor： Cheng Chen , Jiaying Wu , Will Riedel , Wei Chen , John Z. Zhong
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.
-
公开(公告)号：US20180315357A1
公开(公告)日：2018-11-01
申请号：US15882908
申请日：2018-01-29
Applicant: Apple Inc.
Inventor： Donghee Nam , Bhadrinarayana Lalgudi Visweswaran , Cheng Chen , Meng-Huan Ho , Nathan K. Gupta , Rui Liu , Sebastian Knitter , Sudirukkuge T. Jinasundera , Tsung-Ting Tsai , Weibo Cheng
Abstract: An electronic device may be provided with a display. The display may have a display cover layer. The display may have an active area with pixels and an inactive area with dummy pixels. The dummy pixels may have structures that are optically matched to the pixels so that the dummy pixels and pixels have similar visual appearances when the display is off. An optical window may be formed in the inactive area. A light-based component such as an ambient light sensor, proximity sensor, or image sensor may be mounted in the electronic device in alignment with the optical window. A polarizer layer may overlap the active and inactive areas of the display. An opening in the polarizer or a bleached unpolarized portion of the polarizer may be aligned with the optical window.
-
公开(公告)号：US10031367B2
公开(公告)日：2018-07-24
申请号：US13628811
申请日：2012-09-27
Applicant: Apple Inc.
Inventor： Victor H. Yin , Jun Qi , Dinesh C. Mathew , Shih-Chang Chang , Cheng Chen , John Z. Zhong , Wei Chen , Adam T. Garelli , Bryan W. Posner , Christiaan A. Ligtenberg
IPC: G02F1/1335 , G02F1/1362 , G02F1/1345 , G02F1/1333
Abstract: An electronic device may be provided with a display that has a layer of liquid crystal material interposed between a color filter layer and a thin-film-transistor layer. The thin-film-transistor layer may have a substrate with an upper surface and a lower surface. A circular polarizer may be formed on the upper surface. Thin-film transistor circuitry such as gate driver circuitry may be formed on the lower surface. A display driver circuit may be mounted on an inactive border region of the lower surface of the thin-film transistor substrate. Display pixels may form an array in a central active region of the display. A grid of metal gate and data lines may distribute signals from the display driver circuit and gate driver circuitry to the display pixels. A grid of non-reflecting lines may be interposed between the grid of metal lines and the lower surface.
-
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
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：US09952642B2
公开(公告)日：2018-04-24
申请号：US14500646
申请日：2014-09-29
Applicant: APPLE INC.
Inventor： Chaohao Wang , Louis Luh , Jun Qi , Cheng Chen , Jun Jiang , Paolo Sacchetto , Marc Albrecht
CPC classification number: G06F1/32 , G09G5/003 , G09G2320/0247 , G09G2330/021 , G09G2340/0435 , G09G2360/16
Abstract: Systems and methods for operating a display by dynamically determining a refresh rate for the display. In certain implementations, a processor determines a number of pixels having medium grayscale levels from a histogram for the image. If the number does not exceed a threshold, the processor sets a refresh rate for the display to a first refresh rate. In certain implementations, if the number exceeds a threshold, the processor may set the refresh rate for the display to a second refresh rate. Moreover, the first refresh rate may be lower than the second threshold. In some implementations, the image may be analyzed by subdividing the image into blocks and determining a refresh rate based on grayscale levels or distributions in the blocks. Based on the analysis of the blocks, a corresponding refresh rate may be selected.
-
-
-
-
-
-
-
-
-
Search Results
185
records
(took 0.054 seconds)
