Boot-Up Scan Sensing for Display Thermal Artifact Correction
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Solution Overview
Problem
Thermal variations in electronic displays cause image artifacts due to uneven pixel behavior, which existing technologies struggle to correct quickly during power cycles, leading to noticeable artifacts until accurate thermal profiles are updated through pixel behavior sensing.
Innovation Solution
The implementation of scanning driving circuitry that scans a portion of the display's active area during boot-up, storing results in local buffers, and transferring them to processors to modify image data and reduce or eliminate artifacts caused by inaccurate thermal profiles before establishing communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pixel behavior sensing is used to identify and correct thermal artifacts, then image artifact correction is improved, but display time is delayed because sensing takes time
Solution Approach 1:
The patent performs pixel behavior sensing during the boot-up sequence before normal display operation begins. By conducting the sensing operation in advance and storing results in local buffers, the thermal profile is ready when needed, eliminating the delay that would occur if sensing were performed after display startup.
2Reliability
If thermal profile is updated through pixel behavior sensing during boot-up, then image artifact correction is improved, but device complexity increases due to additional boot-up scan operations
Solution Approach 1:
The scanning driving circuitry that normally scans pixels during display operation is made multi-functional by also enabling it to perform sensing operations during boot-up. The same circuit infrastructure serves both display scanning and thermal profiling purposes, avoiding the need for separate dedicated sensing hardware.
Solution Approach 2:
The display system performs its own thermal profiling using its existing scanning infrastructure. The pixel sensing is integrated into the normal display boot-up sequence, allowing the system to self-diagnose and characterize its thermal behavior without requiring external testing equipment or separate measurement systems.
3Measurement precision
If scanning driving circuitry performs boot-up scan before boot-up sequence completes, then thermal profile accuracy is improved, but processing time during boot-up increases
Solution Approach 1:
The pixel sensing operation during boot-up utilizes the continuous scanning capability of the display driving circuitry. Rather than interrupting the boot-up sequence or adding discrete measurement steps, the sensing is integrated into the ongoing scan operations, maintaining continuous useful action throughout the boot-up process.
Data Source
AI summary
Electronic devices and methods pertain to reducing artifacts resulting from a thermal profile preexisting a boot up of an electronic device are disclosed. Scanning driving circuitry of the electronic device scans at least a portion of one or more pixels of an active area of a display using a boot up scan before a boot up sequence of at least a portion of an electronic device completes. The results of the boot up scan are stored in local buffers and transferred to one or more processors upon connection to the one or more processors. The results of the boot up scan cause the one or more processors to modify image data to reduce or eliminate artifacts that may result during boot up due to thermal profiles or other parameters that may cause artifacts.