Arithmetic Processing Unit for Unevenness Correction Data Transfer

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Solution Overview

Problem

Conventional liquid crystal panel projector devices require a large amount of correction data for unevenness correction, leading to prolonged transfer times and inefficiencies in image processing.

Innovation Solution

An electronic device and control method that transfers only the necessary correction segment data between current and previous unevenness correction data, using a video signal processing unit, arithmetic processing unit, and unevenness correction unit to reduce data transfer and processing time.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If a large amount of correction data is transferred for unevenness correction, then the correction quality is improved, but the transfer time is prolonged

Engineering Contradiction:

Improveunevenness correction qualityVSAvoiddata transfer time

Core Design Contradiction:

Manufacturing precisionVSLoss of time

Solution Approach 1:

The correction data is divided into multiple segments corresponding to different regions of the liquid crystal panel. Only segments that require correction are identified and transferred, rather than transferring all correction data. This segmentation approach maintains correction quality for affected regions while significantly reducing the total data transfer volume and time.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system extracts and transfers only the necessary correction segments that correspond to regions requiring unevenness correction. By identifying and extracting only the relevant portions of correction data needed for current calibration, the system avoids transferring unnecessary data, thereby reducing transfer time while maintaining correction effectiveness.

Inventive Principle:

Principle #2Taking out (Extraction)

2Reliability

If all correction data is transferred for unevenness correction, then complete correction coverage is achieved, but the processing efficiency is reduced

Engineering Contradiction:

Improvecorrection coverageVSAvoidprocessing efficiency

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The correction data is organized into segments that correspond to different regions of the liquid crystal panel. This segmentation allows the system to identify and process only the segments that require correction, maintaining complete coverage of necessary regions while improving processing efficiency by excluding segments that do not require correction.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system performs partial correction by transferring only the necessary correction segments rather than all correction data. This partial action approach is sufficient to achieve the required correction coverage for regions that need it, while significantly improving processing efficiency by avoiding unnecessary data transfer and processing of segments that do not require correction.

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS11545058B2Electronic device and control method for electronic device

Publication Date: 2023.01.03 SHARP KK

AI summary

An electronic device includes: a video signal processing unit that receives a video signal and outputs a predetermined type of signal; an arithmetic processing unit that transfers a correction segment data corresponding to a different segment between a current unevenness correction data and a previous unevenness correction data; and an unevenness correction unit that corrects the predetermined type of signal based on the current unevenness correction data.