公开(公告)号：US10429699B2

公开(公告)日：2019-10-01

申请号：US15428307

申请日：2017-02-09

Applicant: OmniVision Technologies, Inc.

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

IPC: G02F1/1337 ,  G02F1/1333 ,  G02F1/1362 ,  G09G3/36

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：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：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.

公开(公告)号：US20180143498A1

公开(公告)日：2018-05-24

申请号：US15428307

申请日：2017-02-09

Applicant: OmniVision Technologies, Inc.

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

IPC: G02F1/1337

CPC classification number: G02F1/133753 ,  G02F1/1337 ,  G02F1/133711 ,  G02F1/133719 ,  G02F1/133723 ,  G02F1/133734 ,  G02F1/133788 ,  G02F1/136213 ,  G02F2001/133388 ,  G02F2001/133757 ,  G02F2001/133769 ,  G02F2001/133776 ,  G02F2201/50 ,  G02F2201/501 ,  G02F2202/36 ,  G02F2203/01 ,  G09G3/3655 ,  G09G2300/0426 ,  G09G2310/0232

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.