Invention Grant
- Patent Title: Compensation methods for display brightness change associated with reduced refresh rate
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Application No.: US14059329Application Date: 2013-10-21
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Publication No.: US09620064B2Publication Date: 2017-04-11
- Inventor: Marc Albrecht , Christopher Philip Alan Tann , Nicholas G. Roland , Sandro H. Pintz , Taesung Kim
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agent Kendall W. Abbasi; Zachary D. Hadd
- Main IPC: G09G3/36
- IPC: G09G3/36 ; G09G3/34 ; G09G3/20

Abstract:
A method and system are provided for compensating for brightness changes in a display having an array of display pixels. The method includes storing a plurality of look-up tables, where each table has a plurality of brightness signals that provide compensation for a brightness change when the refresh rate is changed during a panel self-refresh. The method also includes using display control circuitry to determine the refresh rate associated with an input signal and to determine a compensation based on the refresh rate. The display control circuitry may, for example, use non-linear interpolation to generate a look-up table for the refresh rate. The display control circuitry may adjust the input signal based on the look-up table to produce an output signal that compensates for a brightness change at the refresh rate. The output signal may be transmitted to the array of display pixels.
Public/Granted literature
- US20140267448A1 Compensation Methods for Display Brightness Change Associated with Reduced Refresh Rate Public/Granted day:2014-09-18
Information query
IPC分类: