公开(公告)号：EP3532894A1

公开(公告)日：2019-09-04

申请号：EP18705757.5

申请日：2018-01-29

Applicant: Apple Inc.

Inventor： LIU, Rong ,  SUN, Yu, P. ,  HAFIDI, Abdeslam ,  ZWEIGLE, Erik, A. ,  QI, Jun ,  GU, Mingxia ,  YIN, Victor, H. ,  LI, Xiangtong ,  LI, Yanming ,  HUANG, Yi ,  HONG, Ziruo

IPC: G02F1/1335

公开(公告)号：WO2021236243A1

公开(公告)日：2021-11-25

申请号：PCT/US2021/026201

申请日：2021-04-07

Applicant: APPLE INC.

Inventor： LUM, David, W. ,  CHEN, Jingdong ,  GU, Mingxia ,  QI, Jun ,  KIM, Kyung, Wook ,  PARK, Kwang, Soon ,  LI, Yanming

IPC: G02F1/1335 ,  G02F1/13357

Abstract: A pixel array may be illuminated with backlight illumination from a backlight. The backlight may include a two-dimensional array of light-emitting diodes, with each light- emitting diode being placed in a respective cell. Different light-emitting diodes may have unique brightness magnitudes based on the content of the given display frame. Driver integrated circuits may control one or more associated light-emitting diodes to have a desired brightness level. The driver integrated circuits may be formed in an active area of the backlight. The driver integrated circuits may be arranged in groups that are daisy chained together. A digital signal (that includes information such as addressing information) may be propagated through the group of driver integrated circuits. To manage thermal performance of the backlight, the backlight may include a thermally conductive layer and/or a heat sink structure. To increase the efficiency of the backlight, the backlight may include one or more reflective layers.

公开(公告)号：WO2018160304A1

公开(公告)日：2018-09-07

申请号：PCT/US2018/015776

申请日：2018-01-29

Applicant: APPLE INC.

Inventor： LIU, Rong ,  SUN, Yu, P. ,  HAFIDI, Abdeslam ,  ZWEIGLE, Erik, A. ,  QI, Jun ,  GU, Mingxia ,  YIN, Victor, H. ,  LI, Xiangtong ,  LI, Yanming ,  HUANG, Yi ,  HONG, Ziruo

IPC: G02F1/1335

Abstract: An array of pixels in a display may be illuminated by a backlight having an array (36) of light-emitting diodes (38) in an array of respective cells. A reflector (68) is used to reflect light from the light-emitting diodes (38) through the array of pixels. Within the cells, the reflector (68) has cross-sectional profiles that help distribute light (80) emitted from the light-emitting diodes (38) toward edges of the cells. A light diffuser layer (34) for the backlight may have a partially reflective layer (96) such as a thin-film interference filter with an angularly dependent transmission. Within each cell, the reflector (68) may have cross-sectional profiles with portions that are parabolic or elliptical.

公开(公告)号：EP4136501A1

公开(公告)日：2023-02-22

申请号：EP21722654.7

申请日：2021-04-07

Applicant: Apple Inc.

Inventor： LUM, David, W. ,  CHEN, Jingdong ,  GU, Mingxia ,  QI, Jun ,  KIM, Kyung, Wook ,  PARK, Kwang, Soon ,  LI, Yanming

IPC: G02F1/1335 ,  G02F1/13357