公开(公告)号：US10591774B2

公开(公告)日：2020-03-17

申请号：US15693305

申请日：2017-08-31

Applicant: Apple Inc.

Inventor： Jean-Jacques P. Drolet ,  Yuan Chen ,  Jonathan S. Steckel ,  Ion Bita ,  Dmitry S. Sizov ,  Chia Hsuan Tai ,  John T. Leonard ,  Lai Wang ,  Ove Lyngnes ,  Xiaobin Xin ,  Zhibing Ge

IPC: G02F1/1335 ,  G02F1/1343 ,  F21V8/00 ,  G06F3/044 ,  G02F1/1368 ,  G02F1/1333 ,  G06F3/041

Abstract: A display may have display layers that form an array of pixels. The display layers may include a first layer that includes a light-blocking matrix and a second layer that overlaps the first layer. The first layer may include quantum dot elements formed in openings in the light-blocking matrix. The light-blocking matrix may be formed from a reflective material such as metal. The second layer may include color filter elements that overlap corresponding quantum dot elements in the first layer. Substrate layers may be used to support the first and second layers and to support thin-film transistor circuitry that is used in controlling light transmission through the array of pixels. The display layers may include a liquid crystal layer, polarizer layers, filter layers for reflecting red and green light and/or other light to enhance light recycling, and layers with angularly dependent transmission characteristics.

公开(公告)号：US10516081B1

公开(公告)日：2019-12-24

申请号：US15908492

申请日：2018-02-28

Applicant: Apple Inc.

Inventor： Xiaobin Xin ,  Dmitry S. Sizov ,  Andreas Bibl ,  Ion Bita ,  Yuan Chen ,  Lai Wang ,  Zhibing Ge

IPC: H01L33/24 ,  H01L33/60 ,  H01L33/42 ,  H01L33/18 ,  H01L27/15 ,  H01L33/52

Abstract: Light emitting structures are described in which vertical inorganic semiconductor-based light emitting diodes (LEDs) with hexagon shaped sidewalls are mounted within corresponding circular reflective well structures. Diffuser layers may additionally laterally surround the hexagon shaped sidewalls within the circular reflective well structures.

公开(公告)号：US10303013B2

公开(公告)日：2019-05-28

申请号：US15967441

申请日：2018-04-30

Applicant: Apple Inc.

Inventor： Hossein Nemati ,  Pei-En Chang ,  Yuan Chen ,  Tae Woon Cha ,  Sung H. Kim ,  Chia Hsuan Tai

IPC: G02F1/1343 ,  G02F1/1335 ,  H01L27/12 ,  G02F1/1345 ,  G02F1/1362 ,  G06F1/16 ,  G02F1/167

Abstract: An electronic device may have a housing and a display in the housing. The display may have one or more curved edges such as curved edges associated with rounded corners in the display and housing. The display may have an array of pixels. The display may include full-strength pixels and may have a band of antialiasing pixels having selectively reduced strengths to visually smooth content displayed along the curved edges. The antialiasing pixels may include single-opening pixels that each have a single opaque masking layer opening and may include dual-opening pixels that each include a pair of opaque masking layer openings. The single-opening pixels may be stronger than the dual-opening pixels.

公开(公告)号：US09798199B2

公开(公告)日：2017-10-24

申请号：US14850015

申请日：2015-09-10

Applicant: Apple Inc.

Inventor： Yuan Chen ,  Zhibing Ge ,  Adria Fores Herranz ,  Chia Hsuan Tai ,  Hossein Nemati ,  Jun Jiang ,  Cheng Chen

IPC: G02F1/1335 ,  G02F1/1343 ,  G02F1/1333 ,  G02F1/1337

CPC classification number: G02F1/134309 ,  G02F1/133345 ,  G02F1/133371 ,  G02F1/133512 ,  G02F1/133514 ,  G02F1/133707 ,  G02F1/133753 ,  G02F2001/133519 ,  G02F2001/133757 ,  G02F2001/134345 ,  G02F2201/52

Abstract: A layer of liquid crystal material may be interposed between display layers. The display layers may include thin-film transistor circuitry having subpixel electrodes for applying electric fields to subpixel portions of the layer of liquid crystal material. Subpixels of different colors may have different shapes and may have different liquid crystal layer thicknesses. These subpixel differences may be configured to slow the switching speed of subpixels of a certain color relative to other subpixels to reduce color motion blur when an object is moved across a black or colored background. The subpixels may have chevron shapes. Subpixels of a first color may have chevron shapes that are less bent than subpixels of second and third colors. In configurations with varying liquid crystal layer thicknesses, the subpixels of the first color may have thicker liquid crystal layers than the subpixels of the second and third colors.

公开(公告)号：US09645464B2

公开(公告)日：2017-05-09

申请号：US14850006

申请日：2015-09-10

Applicant: Apple Inc.

Inventor： Byung Duk Yang ,  Chia Hsuan Tai ,  Hiroshi Osawa ,  Kyung Wook Kim ,  Ming-Chin Hung ,  Shang-Chih Lin ,  Shih Chang Chang ,  Yu Cheng Chen ,  Yuan Chen

IPC: G02F1/1333 ,  G02F1/1368 ,  G02F1/1335 ,  G02F1/1362 ,  H01L29/786 ,  H01L29/51 ,  G02B6/00

CPC classification number: G02F1/1368 ,  G02B6/00 ,  G02F1/133345 ,  G02F1/13338 ,  G02F1/133514 ,  G02F1/133528 ,  G02F1/1362 ,  G02F1/136209 ,  G02F2001/133521 ,  G02F2001/136222 ,  H01L29/518 ,  H01L29/78606

Abstract: A display may have upper and lower display layers. A layer of liquid crystal material may be interposed between the upper and lower display layers. The display layers may have substrates. The display layers may include a color filter layer having an array of color filter elements on a glass substrate and a thin-film transistor layer having a layer of thin-film transistor circuitry on a glass substrate. Dielectric layers within the display layers such as dielectric layers within the thin-film transistor layer may have differing indices of refraction. Reflections and color shifts due to index of refraction discontinuities may be minimized by interposing graded index dielectric layers between adjacent layers with different indices. The graded index layers may be formed from structures with a continuously varying index of refraction or structures with a step-wise varying index of refraction.

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：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：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：US10281630B2

公开(公告)日：2019-05-07

申请号：US15351212

申请日：2016-11-14

Applicant: Apple Inc.

Inventor： Yuan Chen ,  Hossein Nemati ,  Chia Hsuan Tai ,  Jin Yan ,  Young Cheol Yang ,  Zhibing Ge

IPC: G02B5/30 ,  H01L27/32 ,  H01L51/00 ,  H01L51/52 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/13363

Abstract: A display may include an optical film to promote sunglass-friendly viewing of the display. Displays may include linear polarizers. For example, a liquid crystal display may have a linear polarizer above a liquid crystal layer, whereas an organic light-emitting diode display may have a linear polarizer that forms a portion of a circular polarizer to reduce reflections in the display. Displays that emit linearly polarized light may not be compatible with polarized sunglasses. To ensure an optimal user experience for users wearing sunglasses, displays may include sunglass-friendly optical films. A sunglass-friendly optical film may be a film formed from a birefringent material such as a polymer or liquid crystal. The sunglass-friendly optical film may have an optical axis that is at a 45° angle relative to the optical axis of the underlying linear polarizer. The sunglass-friendly optical film may be patterned to have reduced thickness regions.