公开(公告)号：US20140211505A1

公开(公告)日：2014-07-31

申请号：US14245447

申请日：2014-04-04

Applicant: Apple Inc.

Inventor： Jeremy C. Franklin ,  Derek W. Wright ,  Wenyong Zhu

IPC: F21V8/00 ,  H05K1/18

CPC classification number: G06Q20/204 ,  G02B6/0068 ,  G02B6/0073 ,  G02B6/0088 ,  G02B6/0091 ,  G06Q20/3223 ,  H05K1/189

Abstract: An electronic device may have a liquid crystal display with backlight structures. The backlight structures may produce backlight that passes through the display layers in the display. The display layers may include a layer of liquid crystal material interposed between a color filter layer and a thin-film transistor layer. The backlight structures may include a light guide plate. A plurality of light-emitting diodes mounted on a flexible printed circuit may be coupled to an edge of the light guide plate. The flexible printed circuit may be curled into a spring element to bias the light-emitting diodes against the edge of the light guide plate. A plurality of gaps may be formed in the flexible printed circuit and may be used to separate and mechanically decouple adjacent light-emitting diodes. Individual light-emitting diodes may independently register to the light guide plate to maximize optical efficiency in the display.

Abstract translation: 电子设备可以具有带背光结构的液晶显示器。 背光结构可以产生穿过显示器中的显示层的背光。 显示层可以包括介于滤色器层和薄膜晶体管层之间的液晶材料层。 背光结构可以包括导光板。 安装在柔性印刷电路上的多个发光二极管可以耦合到导光板的边缘。 柔性印刷电路可以卷曲成弹簧元件，以将发光二极管偏压抵靠导光板的边缘。 可以在柔性印刷电路中形成多个间隙，并且可以用于分离和机械地分离相邻的发光二极管。 单独的发光二极管可以独立地对准导光板以使显示器的光学效率最大化。