公开(公告)号：US20150227000A1

公开(公告)日：2015-08-13

申请号：US14692659

申请日：2015-04-21

Applicant: Apple Inc.

Inventor： Ming Xu ,  Shawn R. Gettemy ,  Young Cheol Yang ,  Zhibing Ge ,  Cheng Chen

IPC: G02F1/1335 ,  G02B5/20 ,  G02F1/1368

CPC classification number: G02F1/133514 ,  G02B5/201 ,  G02F1/133509 ,  G02F1/133512 ,  G02F1/133526 ,  G02F1/136209 ,  G02F1/1368 ,  G02F2001/133357 ,  G02F2001/133521 ,  G02F2001/136222

Abstract: An electronic device may have a liquid crystal display having a backlight and color mixing prevention structures. The color mixing prevention structures may, in part, be formed from one or more arrays of color filter elements. The liquid crystal display may include first and second transparent substrate layers on opposing sides of a liquid crystal layer. The display may include a first array of color filter elements on the first transparent substrate layer and a second array of color filter elements on the second transparent substrate layer. One or more of the arrays of color filter elements may include a black matrix formed over portions of the color filter elements. The color filter elements may fill or partially fill openings in the black matrix. The display may include a collimating layer on the second transparent substrate layer. The color filter elements may include cholesteric color filter elements.

Abstract translation: 电子设备可以具有具有背光和防混色结构的液晶显示器。 防混颜色结构可以部分地由一个或多个滤色器元件阵列形成。 液晶显示器可以包括在液晶层的相对侧上的第一和第二透明基板层。 显示器可以包括第一透明衬底层上的滤色器元件的第一阵列和第二透明衬底层上的滤色器元件的第二阵列。 滤色器元件阵列中的一个或多个可以包括在滤色器元件的部分上形成的黑矩阵。 滤色器元件可以填充或部分填充黑色矩阵中的开口。 显示器可以包括在第二透明基底层上的准直层。 滤色器元件可以包括胆甾型滤色器元件。

公开(公告)号：US20150198844A1

公开(公告)日：2015-07-16

申请号：US14473342

申请日：2014-08-29

Applicant: Apple Inc.

Inventor： Sang Un Choi ,  Zhibing Ge ,  Shang-Chih Lin ,  Hiroshi Osawa ,  Ton-Yong Wang ,  Ming Xu

IPC: G02F1/1335 ,  G02B5/20 ,  G02F1/1368 ,  G02F1/1333 ,  G02F1/1339

CPC classification number: G02F1/133514 ,  G02B5/201 ,  G02F1/133512 ,  G02F1/133516 ,  G02F1/13394 ,  G02F2001/133519 ,  G02F2001/13398

Abstract: A display may have a layer of liquid crystal material between a color filter layer and a thin-film transistor layer. Column spacer structures may be formed between the color filter layer and the thin-film transistor layer to maintain a desired separation between the color filter and thin-film transistor layers. Column spacers may be deposited in column spacer regions of the color filter layer. The color filter layer may include rows of red, green, and blue color filter elements. Blue color filter material that forms blue color filter elements in the color filter layer may also be used to form a planar surface over red and green color filter elements in the column spacer regions. Using the blue color filter material to planarize the surface on which column spacers are formed ensures that the column spacers provide sufficient support for the display without requiring an additional planarization layer.

Abstract translation: 显示器可以在滤色器层和薄膜晶体管层之间具有液晶材料层。 可以在滤色器层和薄膜晶体管层之间形成柱间隔结构，以保持滤色器和薄膜晶体管层之间期望的间隔。 柱间隔物可以沉积在滤色器层的柱间隔区域中。 滤色器层可以包括红色，绿色和蓝色滤色器元件的行。 在滤色器层中形成蓝色滤色器元件的蓝色滤色器材料也可以用于在柱间隔区域中的红色和绿色滤色器元件上形成平面。 使用蓝色滤色器材料来平坦化其上形成有柱间隔物的表面确保柱间隔物为显示器提供足够的支撑，而不需要额外的平坦化层。

公开(公告)号：US11927864B2

公开(公告)日：2024-03-12

申请号：US18169263

申请日：2023-02-15

Applicant: Apple Inc.

Inventor： Yuan Chen ,  Xiaokai Li ,  Zhibing Ge

IPC: G02F1/141 ,  F21V8/00 ,  G02B27/01 ,  G02F1/1337 ,  G02F1/1343 ,  G09G3/00 ,  G09G3/36

CPC classification number: G02F1/141 ,  G02B6/0055 ,  G02B6/0068 ,  G02B27/0172 ,  G02F1/133723 ,  G02F1/13439 ,  G09G3/007 ,  G09G3/3629 ,  G09G2300/0408 ,  G09G2300/0491 ,  G09G2330/021 ,  G09G2340/0457

Abstract: A display may include illumination optics, a ferroelectric liquid crystal on silicon (fLCOS) panel, and a waveguide. The illumination optics may produce illumination that is modulated by the fLCOS panel to produce image light. The waveguide may direct the image light towards an eye box. The fLCOS panel may include a ferroelectric liquid crystal (fLC) layer and a backplane. In order to maximize the reflectance of the fLCOS panel and thus the optical performance of the display, the backplane may be a silver backplane or a dielectric mirror backplane. In addition, the backplane may have a cell gap that is equal to a wavelength divided by four times the birefringence of the fLC layer. In order to further optimize the optical performance of the display module, the wavelength used in determining the cell gap may be a green wavelength between 500 nm and 565 nm.

公开(公告)号：US11822191B2

公开(公告)日：2023-11-21

申请号：US16849164

申请日：2020-04-15

Applicant: Apple Inc.

Inventor： Khadijeh Bayat ,  Avery P. Yuen ,  Chaohao Wang ,  Runyu Zhang ,  Xianwei Zhao ,  Xiaokai Li ,  Yang Li ,  Zhibing Ge ,  Alex H. Pai

IPC: G02F1/1343 ,  G02B27/01 ,  G02F1/137 ,  G02F1/29

CPC classification number: G02F1/13439 ,  G02B27/0172 ,  G02F1/1343 ,  G02F1/13725 ,  G02F1/29 ,  G02B2027/0118

Abstract: An electronic device such as a head-mounted device may have a display that displays computer-generated content for a user. The head-mounted device may have an optical system that directs the computer-generated content towards eye boxes for viewing by a user. The optical system may include a spatially addressable adjustable optical component. The adjustable optical component may have first and second electrodes and an electrically adjustable material between the first and second electrodes. The electrically adjustable material may include a transparent conductive material such as indium tin oxide that includes a pattern of segmented trenches configured to provide the transparent conductive material with electrical anisotropy. Contacts may be coupled to the transparent conductive material. Control circuitry can adjust the electrically adjustable material to form a spatially addressable light modulator or adjustable lens.

公开(公告)号：US20230324740A1

公开(公告)日：2023-10-12

申请号：US18169339

申请日：2023-02-15

Applicant: Apple Inc.

Inventor： Thanh Son Nguyen ,  Xiaokai Li ,  Yuan Chen ,  Zhibing Ge ,  Jian Gao

IPC: G02F1/1362 ,  G02B27/01 ,  G02F1/1335 ,  G02F1/13357

CPC classification number: G02F1/13362 ,  G02B27/0172 ,  G02F1/133603 ,  G02F1/133605 ,  G02F1/133607 ,  G02F1/133621 ,  G02F1/136281 ,  G02B2027/0112 ,  G02F2203/07

Abstract: A display may include illumination optics, a ferroelectric liquid crystal on silicon (fLCOS) panel, and a waveguide. The illumination optics may produce linear polarized illumination light that is modulated by the fLCOS panel to produce image light. The illumination optics may include light emitters that emit respective wavelengths of the illumination light. The illumination optics may include an X-plate that outputs the illumination light by combining the light emitted by the light emitters. Polarization recycling structures may be optically interposed between each of the light emitters and the X-plate. The polarization recycling structures may include a reflective polarizer. If desired, the polarizing recycling structures may also include a quarter waveplate. The polarization recycling structures may serve to minimize the amount of light lost in producing linearly polarized illumination light for the fLCOS display panel, thereby maximizing the optical efficiency of the display.

公开(公告)号：US11611058B2

公开(公告)日：2023-03-21

申请号：US17003732

申请日：2020-08-26

Applicant: Apple Inc.

Inventor： Yuan Chen ,  Chia Hsuan Tai ,  Mohammad Yeke Yazdandoost ,  Zhibing Ge

IPC: H01L51/52 ,  H01L27/32 ,  G06F1/16

Abstract: An optical system is described. The optical system may include a sensor which may be in a mobile device. The optical system may use the same light source for imaging the display and for providing light to a sensor or sensor device. The optical system may be configured so that randomly polarized light will exit the device for viewing so that a user may view the display in any rotated orientation while wearing polarized eyewear. The optical system may further be configured to mitigate reflections in the mobile device from ambient light entering the system and from reflected and backscattered light from cross-contaminating the imaging light of the display.

公开(公告)号：US11105677B2

公开(公告)日：2021-08-31

申请号：US16141183

申请日：2018-09-25

Applicant: Apple Inc.

Inventor： Junhwan Lim ,  Zhibing Ge ,  Christopher L. Boitnott ,  Shih-Wei Chang ,  Sang Un Choi ,  Sudirukkuge T. Jinasundera

IPC: G01J1/04 ,  G01J1/42 ,  G02F1/133 ,  G06F3/03 ,  G06F3/041 ,  G09G3/34 ,  G02F1/1339 ,  G02F1/1334 ,  G09G3/20 ,  G02F1/137 ,  G02F1/1333

Abstract: An electronic device may be provided with a display. An optical component window may be formed in the inactive area of the display. The optical component window may transmit infrared light from an infrared light source. The infrared light source may include a diffuser to allow the light source to operate in a flood illumination mode and a structured light mode. The diffuser may include liquid crystal material between first and second substrates. A sealant may surround the liquid crystal layer, and one or more spacer walls may be located between the sealant and the liquid crystal layer. An additional spacer wall may be used outside of the sealant to prevent metal from creating an electrical short between electrodes in the diffuser. Conductive material in the sealant may be used to couple a top electrode to a metal pad on a bottom substrate.

公开(公告)号：US20210091342A1

公开(公告)日：2021-03-25

申请号：US17003732

申请日：2020-08-26

Applicant: Apple Inc.

Inventor： Yuan Chen ,  Chia Hsuan Tai ,  Mohammad Yeke Yazdandoost ,  Zhibing Ge

IPC: H01L51/52 ,  H01L27/32 ,  G06F1/16

Abstract: An optical system is described. The optical system may include a sensor which may be in a mobile device. The optical system may use the same light source for imaging the display and for providing light to a sensor or sensor device. The optical system may be configured so that randomly polarized light will exit the device for viewing so that a user may view the display in any rotated orientation while wearing polarized eyewear. The optical system may further be configured to mitigate reflections in the mobile device from ambient light entering the system and from reflected and backscattered light from cross-contaminating the imaging light of the display.

公开(公告)号：US10725228B2

公开(公告)日：2020-07-28

申请号：US16280925

申请日：2019-02-20

Applicant: Apple Inc.

Inventor： Hyungryul J. Choi ,  Zhibing Ge ,  Cheng Chen ,  Hossein Nemati ,  Wei Chen ,  Jun Qi ,  Khadijeh Bayat ,  David A. Doyle ,  John Z. Zhong

IPC: G02F1/13 ,  F21V8/00 ,  G02F1/13357 ,  G02F1/1334 ,  G02F1/29 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/1343 ,  G02F1/139 ,  G02F1/137

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 backlight unit that generates a collimated light source and that includes a switchable diffuser film for selectively scattering the collimated light source depending on the current viewing mode of the display. In another configuration, the display may include a backlight unit that generates a scattered light source that includes a switchable microarray structure such as a switchable mirror structure or a tunable microlens array for selectively collimating the scattered light source depending on the current viewing mode.

公开(公告)号：US10535287B2

公开(公告)日：2020-01-14

申请号：US15275374

申请日：2016-09-24

Applicant: Apple Inc.

Inventor： Chaohao Wang ,  Lu Zhang ,  Zhibing Ge ,  Shih-Chyuan Fan Jiang ,  Ilie Garbacea ,  Marc Albrecht ,  Kingsuk Brahma ,  Hopil Bae ,  Paolo Sacchetto ,  Jie Won Ryu ,  Sandro H. Pintz ,  Chengrui Le

IPC: G09G3/34 ,  G09G3/3258 ,  G09G3/36 ,  G09G3/20

Abstract: Systems and methods are provided for improving displayed image quality of an electronic display that includes a display pixel. The electronic display displays a first image frame directly after a second image frame by applying an analog electrical signal to the display pixel. To facilitate display of the first image frame, circuitry receives image data corresponding to the image frame, in which the image data includes a grayscale value that indicates target luminance of the display pixel; determines expected refresh rate of the first image frame based at least in part on actual refresh rate of the second image frame; determines a pixel response correction offset based at least in part on the expected refresh rate of the first image frame; and determines processed image data by applying the pixel response correction offset to the grayscale value, in which the processed image data indicates magnitude of the analog electrical signal.