公开(公告)号：US10571743B2

公开(公告)日：2020-02-25

申请号：US15688736

申请日：2017-08-28

Applicant: Apple Inc.

Inventor： Byungsoo Ko ,  Daming Xu ,  Heesang Suh ,  Michael Tom ,  Shin-Ying Lu ,  Thomas Mueller ,  Wenyong Zhu ,  Victor H. Yin ,  Mookyung Son

IPC: G02F1/1335 ,  F21V8/00

Abstract: A display may have a backlight unit that provides backlight illumination. The backlight unit may include a light guide that distributes light through the display. Light-emitting diodes may emit light into the light guide. A reflector that is overlapped by the light guide may help reflect light upwards through an array of pixels. The backlight unit may have a chassis that receives the reflector, light guide, light-emitting diodes, and optical films such as diffusers and prism films. Optical and mechanical features in the backlight unit may enhance color and intensity uniformity for the backlight illumination and may help enhance durability.

公开(公告)号：US20180307102A1

公开(公告)日：2018-10-25

申请号：US15688736

申请日：2017-08-28

Applicant: Apple Inc.

Inventor： Byungsoo Ko ,  Daming Xu ,  Heesang Suh ,  Michael Tom ,  Shin-Ying Lu ,  Thomas Mueller ,  Wenyong Zhu ,  Victor H. Yin ,  Mookyung Son

IPC: G02F1/1335 ,  F21V8/00

CPC classification number: G02F1/133611 ,  G02B6/0016 ,  G02B6/0025 ,  G02B6/0028 ,  G02B6/0031 ,  G02B6/0036 ,  G02B6/0055 ,  G02B6/0073 ,  G02B6/0088

Abstract: A display may have a backlight unit that provides backlight illumination. The backlight unit may include a light guide that distributes light through the display. Light-emitting diodes may emit light into the light guide. A reflector that is overlapped by the light guide may help reflect light upwards through an array of pixels. The backlight unit may have a chassis that receives the reflector, light guide, light-emitting diodes, and optical films such as diffusers and prism films. Optical and mechanical features in the backlight unit may enhance color and intensity uniformity for the backlight illumination and may help enhance durability.