公开(公告)号：US11526051B2

公开(公告)日：2022-12-13

申请号：US17409458

申请日：2021-08-23

Applicant: Apple Inc.

Inventor： Daming Xu ,  Wei Lv ,  Pee Khiam So ,  Wenyong Zhu ,  Rong Liu ,  Victor H. Yin ,  Mookyung Son ,  Jun Qi ,  Yufeng Yan ,  Shaofeng Liu ,  Thomas O. Henry ,  Suraj P. Gorkhali

IPC: G02F1/13357

Abstract: A display may have a pixel array such as a liquid crystal pixel array. The pixel array may be illuminated with backlight illumination from a direct-lit backlight unit. The backlight unit may include an array of light-emitting diodes on a printed circuit board. The backlight unit may include first, second, and third light spreading layers formed over the array of light-emitting diodes. A color conversion layer may be formed over the first, second, and third light spreading layers. First and second brightness enhancement films may be formed over the color conversion layer.

公开(公告)号：US20210208313A1

公开(公告)日：2021-07-08

申请号：US17211354

申请日：2021-03-24

Applicant: Apple Inc.

Inventor： Yi Huang ,  Steven M. Scardato ,  ByoungSuk Kim ,  Jun Qi ,  Victor H. Yin ,  Wenyong Zhu

IPC: G02B5/00 ,  H01L51/52 ,  G02F1/1335 ,  B32B27/08 ,  B32B27/36

Abstract: A privacy film may have a light-blocking layer that is interposed between first and second transparent substrates. The light-blocking layer may have a plurality of opaque portions and a plurality of transparent portions. The opaque portions may be shaped to ensure light from the display is directed only to the primary viewer of the display. Each opaque portion of the light-blocking layer may extend along a respective longitudinal axis between the first and second transparent substrates. Privacy films used to cover curved displays may have opaque portions that extend along longitudinal axes that have different angles relative to the transparent substrates. Opaque portions in the edge of the privacy film may have longitudinal axes that are at non-perpendicular angles with respect to the transparent substrates. A privacy film for a curved display may also include a light-redirecting layer such as a prism layer or a liquid crystal layer.

公开(公告)号：US20200049864A1

公开(公告)日：2020-02-13

申请号：US16421838

申请日：2019-05-24

Applicant: Apple Inc.

Inventor： Yi Huang ,  Steven M. Scardato ,  ByoungSuk Kim ,  Jun Qi ,  Victor H. Yin ,  Wenyong Zhu

IPC: G02B5/00 ,  H01L51/52 ,  G02F1/1335 ,  B32B27/08 ,  B32B27/36

Abstract: A privacy film may have a light-blocking layer that is interposed between first and second transparent substrates. The light-blocking layer may have a plurality of opaque portions and a plurality of transparent portions. The opaque portions may be shaped to ensure light from the display is directed only to the primary viewer of the display. Each opaque portion of the light-blocking layer may extend along a respective longitudinal axis between the first and second transparent substrates. Privacy films used to cover curved displays may have opaque portions that extend along longitudinal axes that have different angles relative to the transparent substrates. Opaque portions in the edge of the privacy film may have longitudinal axes that are at non-perpendicular angles with respect to the transparent substrates. A privacy film for a curved display may also include a light-redirecting layer such as a prism layer or a liquid crystal layer.

公开(公告)号：US11221513B2

公开(公告)日：2022-01-11

申请号：US16439449

申请日：2019-06-12

Applicant: Apple Inc.

Inventor： Supriya Goyal ,  Yuxi Zhao ,  Xinsheng Chu ,  Chan Hyuk Park ,  Min Tao ,  Wenyong Zhu

IPC: G02F1/13 ,  G02F1/13357 ,  F21V8/00 ,  H05K1/11 ,  G02F1/1345 ,  H05K1/02 ,  H01R12/62 ,  H01R4/04 ,  G02F1/1368 ,  G02F1/133 ,  G09G3/00 ,  G09G3/36

Abstract: An electronic device includes display layers such as liquid crystal display layers and a backlight unit that provides illumination for the display layers. The backlight unit includes light-emitting diodes that emit light into the edge of a light guide film. To minimize the inactive area of the display, the light-emitting diodes are tightly spaced to approximate a line light source instead of point light sources. Color and/or luminance compensation layers are incorporated at various locations within the backlight structures to ensure that the backlight provided to the display layers is homogenous. A thin-film transistor layer of the display is coupled to a printed circuit board by a flexible printed circuit. The flexible printed circuit has additional solder mask layers to improve robustness, encapsulation, and traces with a varying pitch.

公开(公告)号：US10983256B2

公开(公告)日：2021-04-20

申请号：US16421838

申请日：2019-05-24

Applicant: Apple Inc.

Inventor： Yi Huang ,  Steven M. Scardato ,  ByoungSuk Kim ,  Jun Qi ,  Victor H Yin ,  Wenyong Zhu

IPC: B32B3/00 ,  G02B5/00 ,  H01L51/52 ,  G02F1/1335 ,  B32B27/08 ,  B32B27/36 ,  H01L27/32 ,  F21V8/00 ,  G02B5/04 ,  G02F1/1333

Abstract: A privacy film may have a light-blocking layer that is interposed between first and second transparent substrates. The light-blocking layer may have a plurality of opaque portions and a plurality of transparent portions. The opaque portions may be shaped to ensure light from the display is directed only to the primary viewer of the display. Each opaque portion of the light-blocking layer may extend along a respective longitudinal axis between the first and second transparent substrates. Privacy films used to cover curved displays may have opaque portions that extend along longitudinal axes that have different angles relative to the transparent substrates. Opaque portions in the edge of the privacy film may have longitudinal axes that are at non-perpendicular angles with respect to the transparent substrates. A privacy film for a curved display may also include a light-redirecting layer such as a prism layer or a liquid crystal layer.

公开(公告)号：US20210084777A1

公开(公告)日：2021-03-18

申请号：US16912522

申请日：2020-06-25

Applicant: Apple Inc.

Inventor： Adam Adjiwibawa ,  Shaowei Qin ,  Victor H. Yin ,  Wenyong Zhu ,  Steven M. Scardato

IPC: H05K3/46

Abstract: A rigid flex printed circuit board (PCB), method of manufacture, and display system incorporating the same are described. In an embodiment, a rigid flex PCB includes a flexible area extending from an adjacent routing area that is thicker than the flexible area. A flexible inner core spans the flexible area and the adjacent routing area. Outer stack-up layers are on the flexible inner core in the adjacent routing area. A cavity is formed in the outer stack-up layers in the routing area and exposes the flexible inner core. In an embodiment, a display system including such a circuit board may include an electronic component mounted on the flexible inner core within the cavity, and a distal end of the flexible area is bonded to a display panel.

公开(公告)号：US10901260B2

公开(公告)日：2021-01-26

申请号：US16294732

申请日：2019-03-06

Applicant: Apple Inc.

Inventor： Rong Liu ,  Jun Qi ,  Victor H. Yin ,  Wei Lv ,  Joshua A. Spechler ,  Yu P. Sun ,  Suraj P. Gorkhali ,  Daming Xu ,  Edward H. Kang ,  Wenyong Zhu ,  Ziruo Hong ,  Xinyu Zhu ,  Ling Han ,  Mookyung Son ,  Pee Khiam So ,  Janos C. Keresztes ,  Chenhua You ,  Zhenyue Luo ,  Heesang Suh ,  Juan He ,  Hung Sheng Lin

IPC: G02F1/13357 ,  H05K1/02 ,  H05K1/18 ,  H05K3/22 ,  H05K3/34 ,  F21K9/64 ,  H01L25/075 ,  H01L33/54 ,  H01L33/62 ,  H01L33/64 ,  F21Y115/10

Abstract: A display may have a pixel array such as a liquid crystal pixel array. The pixel array may be illuminated with backlight illumination from a backlight unit. The backlight unit may include a printed circuit board, a plurality of light-emitting diodes mounted on the printed circuit board, at least one light spreading layer formed over the printed circuit board that spreads light received from the plurality of light-emitting diodes, a partially reflective layer formed over the at least one light spreading layer, a color conversion layer formed over the partially reflective layer, a collimating layer formed over the color conversion layer, a brightness enhancement film formed over the collimating layer, and a diffuser formed over the brightness enhancement film. The at least one light spreading layer may include two light spreading layers with elongated protrusions that are rotated relative to each other.

公开(公告)号：US10852582B2

公开(公告)日：2020-12-01

申请号：US16439419

申请日：2019-06-12

Applicant: Apple Inc.

Inventor： Wenyong Zhu ,  Shan-Ting Hsu ,  Victor H. Yin ,  Daming Xu ,  Heesang Suh ,  Chenhua You ,  Mookyung Son

IPC: G02F1/13357 ,  F21V8/00 ,  H05K1/11 ,  G02F1/1345 ,  H05K1/02 ,  H01R12/62 ,  H01R4/04 ,  G02F1/1368 ,  G02F1/133 ,  G09G3/00 ,  G09G3/36

Abstract: An electronic device may include display layers such as liquid crystal display layers and a backlight unit that provides illumination for the display layers. The backlight unit may include light-emitting diodes that emit light into the edge of a light guide film. To minimize the inactive area of the display, the light-emitting diodes may be tightly spaced to approximate a line light source instead of point light sources. Color and/or luminance compensation layers may be incorporated at various locations within the backlight structures to ensure that the backlight provided to the display layers is homogenous. A thin-film transistor layer of the display may be coupled to a printed circuit board by a flexible printed circuit. The flexible printed circuit may have additional solder mask layers to improve robustness, may include encapsulation, and may have traces with a varying pitch.

公开(公告)号：US20180307100A1

公开(公告)日：2018-10-25

申请号：US15974590

申请日：2018-05-08

Applicant: Apple Inc.

Inventor： Daming Xu ,  Heesang Suh ,  Mookyung Son ,  Wenyong Zhu ,  Victor H. Yin

IPC: G02F1/1335 ,  F21V8/00 ,  G02F1/1337

CPC classification number: G02F1/133603 ,  G02B6/0031 ,  G02F1/133504 ,  G02F1/133711

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：US09361609B2

公开(公告)日：2016-06-07

申请号：US14245447

申请日：2014-04-04

Applicant: Apple Inc.

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

IPC: G06Q20/20 ,  H05K1/18 ,  G06Q20/32 ,  F21V8/00

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。