- Patent Title: Display apparatus with adjustable angles-of-view comprising backlight structures having an electrically adjustable lens array that adjusts backlight illumination
-
Application No.: US15199620Application Date: 2016-06-30
-
Publication No.: US10705358B2Publication Date: 2020-07-07
- Inventor: Miguel C. Christophy , Ming Xu
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple, Inc.
- Current Assignee: Apple, Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Treyz Law Group, P.C.
- Agent G. Victor Treyz; Matthew R. Williams
- Main IPC: G02F1/13
- IPC: G02F1/13 ; G02F1/29 ; F21V8/00 ; G02F1/13357 ; G02F1/1334

Abstract:
A display may have a backlight unit that provides backlight illumination. The backlight unit may include a light guide that distributes light throughout the display and an electrically adjustable lens array. The lens array may have lenses such as liquid lenses or liquid crystal lenses. By adjusting the lenses in the lens array, the angles of rays of backlight from the backlight unit may be adjusted to adjust the angle-of-view of the display. The angle-of-view of the display may also be adjusted using an electrically controllable filter layer. The electrically controllable filter layer may have a liquid crystal layer or a polymer dispersed liquid crystal layer that can be controlled using electrodes. When the electrodes apply signals to the electrically controllable filter layer, portions of the filter layer change to a dark or translucent state and restrict the angle-of-view of the display.
Public/Granted literature
- US20170219859A1 Displays With Adjustable Angles-of-View Public/Granted day:2017-08-03
Information query