公开(公告)号：US20140085576A1

公开(公告)日：2014-03-27

申请号：US13629440

申请日：2012-09-27

Applicant: APPLE INC.

Inventor： Eric Benson ,  Adam T. Garelli ,  Dinesh C. Mathew ,  Bryan W. Posner ,  Jun Qi ,  Victor H. Yin

IPC: G02F1/1335 ,  F21V17/02

CPC classification number: G02B6/0065 ,  G02B6/0021 ,  G02B6/0086

Abstract: Electronic devices may be provided with backlight structures that provide backlight illumination for a display. The backlight structures include a light source such as an array of light-emitting diodes that launches light into an edge of a light guide plate. The light guide plate distributes the light laterally across display layers in the display. One or more optical films such as brightness enhancement films and diffuser layers are interposed between the display layers and the light guide plate. The light guide plate includes light guide plate alignment features that mate with corresponding optical film alignment features in the optical films. The light guide plate alignment features may be protrusions that extend into openings such as notches or holes in the optical films. The light guide plate may have a protruding portion that extends around a periphery of the light guide plate and surrounds a perimeter of the optical films.

Abstract translation: 电子设备可以设置有为显示器提供背光照明的背光结构。 背光结构包括诸如将光发射到导光板的边缘中的发光二极管阵列的光源。 导光板将光横向分布在显示器中的显示层上。 在显示层和导光板之间插入一个或多个光学膜，例如亮度增强膜和漫射层。 导光板包括与光学膜中对应的光学膜对准特征相配合的导光板对准特征。 导光板对准特征可以是延伸到诸如光学膜中的凹口或孔的开口的突起。 导光板可以具有围绕导光板的周边延伸并且围绕光学膜的周边的突出部分。

公开(公告)号：US11003208B2

公开(公告)日：2021-05-11

申请号：US16412285

申请日：2019-05-14

Applicant: Apple Inc.

Inventor： Keith J. Hendren ,  Adam T. Garelli ,  Bryan W. Posner ,  Dinesh C. Mathew ,  Mengyang Liang ,  Eric Benson ,  Victor Yin ,  Jun Qi

IPC: F21V7/04 ,  G06F1/16 ,  F21V8/00 ,  G02F1/1335 ,  G02F1/13357

Abstract: An electronic device such as a laptop computer or other device may have a housing. A display may be coupled to the housing. The display may have a pixel array configured to display an image. Backlight illumination for the pixel array may be provide by a backlight unit. The backlight unit may have a light guide layer. A light source may provide light to an edge of the light guide layer. The light guide layer may scatter the light outwardly to serve as the backlight illumination for the pixel array. The backlight unit may have optical films interposed between the light guide layer and the pixel array. The optical films may include flexible polymer layers such as diffuser layers and prism films. The optical films may each have a bent alignment portion that bends back on itself while wrapping around an edge of the light guide layer.