公开(公告)号：US20170205653A1

公开(公告)日：2017-07-20

申请号：US14995548

申请日：2016-01-14

Applicant: OmniVision Technologies, Inc.

Inventor： Yin Qian ,  Dyson Hsin-Chih Tai ,  Ming Zhang ,  Chia-Chun Miao

IPC: G02F1/1337 ,  G02F1/1343

CPC classification number: G02F1/136 ,  G02F1/133788

Abstract: A novel method of forming an alignment layer of a liquid crystal display device includes the steps of providing a substrate (e.g., a processed silicon wafer, etc.) having an alignment layer material deposited thereon and applying a series of pulses from a pulse laser to anneal portions of the alignment layer material and alter its surface morphology. The method can include the step of depositing the alignment layer material (e.g., a spin-on dielectric including SiO2) over the substrate using a spin-on process prior to laser annealing. Applying the series of laser pulses creates a repetitive pattern of features that facilitate alignment of liquid crystals according to a laser scan trace. Liquid crystal display devices with laser-annealed alignment layer(s) are also disclosed. The alignment layers of the invention are quickly and inexpensively applied and are very robust under prolonged, high-intensity light stress.

公开(公告)号：US20190333953A1

公开(公告)日：2019-10-31

申请号：US15962943

申请日：2018-04-25

Applicant: OmniVision Technologies, Inc.

Inventor： Cheng Zhao ,  Chen-Wei Lu ,  Zhiqiang Lin ,  Dyson Hsin-Chih Tai

IPC: H01L27/146

Abstract: An image sensor comprises a first photodiode and a second photodiode having a smaller full-well capacitance than the first photodiode, wherein the second photodiode is adjacent to the first photodiode; a first micro-lens is disposed above the first photodiode and on an illuminated side of the image sensor; a second micro-lens is disposed above the second photodiode and on the illuminated side of the image sensor; and a coating layer disposed on both the first and second micro-lens, wherein the coating layer forms a flat top surface on the second micro-lens and a conformal coating layer on the first micro-lens.

公开(公告)号：US10317733B2

公开(公告)日：2019-06-11

申请号：US15334488

申请日：2016-10-26

Applicant: OmniVision Technologies, Inc.

Inventor： Ming Zhang ,  Yin Qian ,  Libo Weng ,  Oray Orkun Cellek ,  Dyson Hsin-Chih Tai ,  Lequn Liu ,  Dominic Massetti

IPC: G02F1/13 ,  G02F1/1335 ,  G02F1/1337 ,  G02F1/1362

Abstract: An alignment layer for a liquid crystal on silicon (LCOS) display includes a nano-particle layer. In a particular embodiment the nano-particle layer includes a lower nano-layer and an upper nano-layer, each formed onto oxide layers of the LCOS display. In a more particular embodiment, the lower nano-layer and the upper nano-layer are offset printed onto the oxide layers.

公开(公告)号：US09986213B2

公开(公告)日：2018-05-29

申请号：US15197464

申请日：2016-06-29

Applicant: OmniVision Technologies, Inc.

Inventor： Gang Chen ,  Duli Mao ,  Dyson Hsin-Chih Tai

IPC: H04N9/083 ,  H01L27/146 ,  H04N5/369 ,  H04N9/04 ,  H04N5/225

CPC classification number: H04N9/083 ,  H01L27/14605 ,  H01L27/1462 ,  H01L27/14621 ,  H01L27/14627 ,  H01L27/14645 ,  H04N5/2252 ,  H04N5/2253 ,  H04N5/2257 ,  H04N5/35563 ,  H04N5/3696 ,  H04N9/045

Abstract: An image sensor includes a substrate, a first set of sensor pixels formed on the substrate, and a second set of sensor pixels formed on the substrate. The sensor pixels of the first set are arranged in rows and columns and are configured to detect light within a first range of wavelengths (e.g., white light). The sensor pixels of the second set are arranged in rows and columns and are each configured to detect light within one of a set of ranges of wavelengths (e.g., red, green, and blue). Each range of wavelengths of the set of ranges of wavelengths is a subrange of said first range of wavelengths, and each pixel of the second set of pixels is smaller than each pixel of the first set of pixels.

公开(公告)号：US20180113336A1

公开(公告)日：2018-04-26

申请号：US15334488

申请日：2016-10-26

Applicant: OmniVision Technologies, Inc.

Inventor： Ming Zhang ,  Yin Qian ,  Libo Weng ,  Oray Orkun Cellek ,  Dyson Hsin-Chih Tai ,  Lequn Liu ,  Dominic Massetti

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

CPC classification number: G02F1/1337 ,  G02F1/1303 ,  G02F1/133553 ,  G02F2001/136281 ,  G02F2202/105 ,  G02F2202/36

Abstract: An alignment layer for a liquid crystal on silicon (LCOS) display includes a nano-particle layer. In a particular embodiment the nano-particle layer includes a lower nano-layer and an upper nano-layer, each formed onto oxide layers of the LCOS display. In a more particular embodiment, the lower nano-layer and the upper nano-layer are offset printed onto the oxide layers.

公开(公告)号：US20180090538A1

公开(公告)日：2018-03-29

申请号：US15276000

申请日：2016-09-26

Applicant: OmniVision Technologies, Inc.

Inventor： Xin Wang ,  Dajiang Yang ,  Qin Wang ,  Duli Mao ,  Dyson Hsin-Chih Tai

IPC: H01L27/146

CPC classification number: H01L27/14685 ,  H01L27/14621 ,  H01L27/14629

Abstract: An image sensor includes a substrate, a plurality of light sensitive pixels, a first plurality of color filters, a plurality of reflective sidewalls, and a second plurality of color filters. The light sensitive pixels are formed on said substrate. The first plurality of color filters is disposed over a first group of the light sensitive pixels. The reflective sidewalls are formed on each side of each of the first plurality of color filters. The second plurality of color filters are disposed over a second group of light sensitive pixels and each color filter of the second plurality of color filters is separated from each adjacent filter of said first plurality of color filters by one of the reflective sidewalls. In a particular embodiment an etch-resistant layer is disposed over the first plurality of color filters and the second group of light sensitive pixels.

公开(公告)号：US10481439B2

公开(公告)日：2019-11-19

申请号：US15357920

申请日：2016-11-21

Applicant: OmniVision Technologies, Inc.

Inventor： Christopher Morgan Walker ,  Libo Weng ,  Oray Orkun Cellek ,  Ming Zhang ,  Yin Qian ,  Dyson Hsin-Chih Tai ,  Regis Fan

IPC: G09G3/36 ,  G02F1/1337 ,  G02F1/137 ,  G02F1/1333

Abstract: A liquid crystal display includes a display area and a border area at least partially surrounding the display area, where the display area displays images for viewing and the border area displays display-protection images, which are used to control ion migration in the liquid crystal layer. In a more particular embodiment, the border area displays a series of checkerboard pattern(s), where the checkerboard patterns can alternate between initial and inverted values. The display-protection images protect the liquid crystal display from migrating ions accumulating in particular regions of the pixel array and causing permanent defects in the display area. A liquid crystal display that includes a liquid crystal alignment layer having a plurality of liquid crystal alignment directions is also disclosed. The customized liquid crystal alignment director(s) over the border area promote ion migration away from the display area.

公开(公告)号：US10462433B2

公开(公告)日：2019-10-29

申请号：US15967678

申请日：2018-05-01

Applicant: OmniVision Technologies, Inc.

Inventor： Gang Chen ,  Duli Mao ,  Dyson Hsin-Chih Tai

IPC: H04N9/083 ,  H04N5/355 ,  H04N5/225 ,  H01L27/146 ,  H04N5/369 ,  H04N9/04

Abstract: An image sensor includes a substrate, a first set of sensor pixels formed on the substrate, and a second set of sensor pixels formed on the substrate. The sensor pixels of the first set are arranged in rows and columns and are configured to detect light within a first range of wavelengths (e.g., white light). The sensor pixels of the second set are arranged in rows and columns and are each configured to detect light within one of a set of ranges of wavelengths (e.g., red, green, and blue). Each range of wavelengths of the set of ranges of wavelengths is a subrange of said first range of wavelengths, and each pixel of the second set of pixels is smaller than each pixel of the first set of pixels.

公开(公告)号：US10103194B2

公开(公告)日：2018-10-16

申请号：US15276000

申请日：2016-09-26

Applicant: OmniVision Technologies, Inc.

Inventor： Xin Wang ,  Dajiang Yang ,  Qin Wang ,  Duli Mao ,  Dyson Hsin-Chih Tai

IPC: H01L27/146

Abstract: An image sensor includes a substrate, a plurality of light sensitive pixels, a first plurality of color filters, a plurality of reflective sidewalls, and a second plurality of color filters. The light sensitive pixels are formed on said substrate. The first plurality of color filters is disposed over a first group of the light sensitive pixels. The reflective sidewalls are formed on each side of each of the first plurality of color filters. The second plurality of color filters are disposed over a second group of light sensitive pixels and each color filter of the second plurality of color filters is separated from each adjacent filter of said first plurality of color filters by one of the reflective sidewalls. In a particular embodiment an etch-resistant layer is disposed over the first plurality of color filters and the second group of light sensitive pixels.

公开(公告)号：US20180144710A1

公开(公告)日：2018-05-24

申请号：US15357920

申请日：2016-11-21

Applicant: OmniVision Technologies, Inc.

Inventor： Christopher Morgan Walker ,  Libo Weng ,  Oray Orkun Cellek ,  Ming Zhang ,  Yin Qian ,  Dyson Hsin-Chih Tai ,  Regis Fan

IPC: G09G3/36 ,  G02F1/1337 ,  G02F1/137

Abstract: A liquid crystal display includes a display area and a border area at least partially surrounding the display area, where the display area displays images for viewing and the border area displays display-protection images, which are used to control ion migration in the liquid crystal layer. In a more particular embodiment, the border area displays a series of checkerboard pattern(s), where the checkerboard patterns can alternate between initial and inverted values. The display-protection images protect the liquid crystal display from migrating ions accumulating in particular regions of the pixel array and causing permanent defects in the display area. A liquid crystal display that includes a liquid crystal alignment layer having a plurality of liquid crystal alignment directions is also disclosed. The customized liquid crystal alignment director(s) over the border area promote ion migration away from the display area.