Invention Grant
- Patent Title: Methods for display uniform gray tracking and gamma calibration
- Patent Title (中): 显示均匀灰度跟踪和伽马校准的方法
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Application No.: US13841540Application Date: 2013-03-15
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Publication No.: US09055283B2Publication Date: 2015-06-09
- Inventor: Cheng Chen , Gabriel Marcu , Jiaying Wu , Anuj Bhatnagar , Hongqin Zhang
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agent Kendall P. Woodruff
- Main IPC: H04N17/02
- IPC: H04N17/02 ; H04N17/04

Abstract:
A method is provided for calibrating a display having color channels. Each color channel is capable of adjusting settings for pixel values at gray level entries. The method includes selecting a gray level entry for calibration. The method also includes providing a target white point in chromaticity coordinates (x, y) and a target brightness at the selected gray level entry to the display. The method further includes adjusting the setting for the pixel values for the color channels at the selected gray level entry such that the display achieves the target white point and the target brightness at an adjusted pixel value.
Public/Granted literature
- US20140267785A1 Methods for Display Uniform Gray Tracking and Gamma Calibration Public/Granted day:2014-09-18
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