公开(公告)号：EP3486895A1

公开(公告)日：2019-05-22

申请号：EP18199465.8

申请日：2015-05-05

Applicant: Apple Inc.

Inventor： WU, Jiaying ,  ZHANG, Lu ,  CHEN, Cheng ,  MARCU, Gabriel ,  WANG, Chaohao ,  MOTTA, Ricardo ,  CHEN, Wei ,  ZHONG, John Z. ,  XU, Ming

IPC: G09G5/02

Abstract: An electronic device may include a display having an array of display pixels and having display control circuitry that controls the operation of the display. The display control circuitry may adaptively adjust the display output based on ambient lighting conditions. For example, in cooler ambient lighting conditions such as those dominated by daylight, the display may display neutral colors using a relatively cool white. When the display is operated in warmer ambient lighting conditions such as those dominated by indoor light sources, the display may display neutral colors using a relatively warm white. Adapting to the ambient lighting conditions may ensure that the user does not perceive color shifts on the display as the user's vision chromatically adapts to different ambient lighting conditions. Adaptively adjusting images in this way can also have beneficial effects on the human circadian rhythm by displaying warmer colors in the evening.

公开(公告)号：EP2912421A1

公开(公告)日：2015-09-02

申请号：EP13849523.9

申请日：2013-10-18

Applicant: Apple Inc.

Inventor： YIN, Ye ,  MARCU, Gabriel ,  WU, Jiaying

IPC: G01J3/46

CPC classification number: G01J3/28 ,  G01J3/0218 ,  G01J3/0243 ,  G01J3/0291 ,  G01J3/0294 ,  G01J3/0297 ,  G01J3/462 ,  G01J3/465 ,  G01J3/50 ,  G01J3/502 ,  G01J3/506 ,  G01J3/51 ,  G01J3/513 ,  G01J3/524

Abstract: This specification describes various embodiments that relate to methods for providing a wideband colorimeter that can include more accurate outputs. In one embodiment, a narrowband instrument, such as a spectrometer or spectrograph, can be used for calibration of a wideband colorimeter, so that more accurate outputs can be provided. In one embodiment, an optical test equipment, which consists of both a wideband colorimeter and a narrowband spectrograph, can be used for providing a more accurately calibrated wideband colorimeter. As an example, a spectra-camera, which is a hybrid system consisting of both a wideband colorimeter and a narrowband spectrograph, can be used for simultaneous testing by both the wideband colorimeter and the narrowband spectrograph. By doing simultaneous testing, accurate calibration of the wideband colorimeter can be achieved. This specification further describes a mathematical model to characterize a wideband three channel colorimeter with a narrowband multiple channel spectrometer.