Invention Grant
- Patent Title: Dithering techniques for electronic displays
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Application No.: US15655591Application Date: 2017-07-20
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Publication No.: US10403192B2Publication Date: 2019-09-03
- Inventor: Marc Albrecht , Mahesh B. Chappalli , Christopher P. Tann , Jim C. Chou , Guy Cote
- Applicant: APPLE INC.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Fletcher Yoder, P.C.
- Main IPC: G09G3/20
- IPC: G09G3/20 ; G09G3/32 ; G09G3/36 ; G09G3/3208

Abstract:
Devices and methods for error diffusion and spatiotemporal dithering are provided. By way of example, a method of operating a display includes receiving a pixel input, a set of pixel coordinates, and a current frame number. A kernel and a particular kernel bit of the kernel is selected from a set of kernels, based upon the pixel input, the pixel coordinates, the frame number, or any combination thereof. A dithered output is determined based at least in part upon the kernel bit. When the display is in a diamond pixel configuration, the dithered output is applied in accordance with a diamond pattern formed by red, blue, or red and blue pixel channels.
Public/Granted literature
- US20180082626A1 DITHERING TECHNIQUES FOR ELECTRONIC DISPLAYS Public/Granted day:2018-03-22
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