Display Device Partial Enlargement Image Quality
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Solution Overview
Problem
Existing display devices experience image quality degradation when enlarging and compositing partial areas of images, due to repeated resizing and filtering processes, leading to increased processing loads and reduced visibility.
Innovation Solution
The display device generates partial enlarged images directly from original image data rather than from resized base images, cutting and resizing only the specific target area, and implements features like loupe functions and rotating operations to enhance image quality and user experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If partial area enlargement and compositing is performed on resized base images, then display magnification is achieved, but image quality degrades due to repeated resizing and filtering
Solution Approach 1:
The patent applies preliminary action by preparing and storing multiple pre-scaled image datasets at different scales (e.g., 100%, 200%, 300% of base resolution) in advance. When a user requests partial area enlargement, the system directly retrieves the appropriately scaled dataset without performing real-time resizing operations, thereby preventing image quality degradation while reducing processing load.
Solution Approach 2:
The patent segments the image processing into multiple independent datasets at different scales. Instead of processing one large image, the system divides the work into pre-computed segments (different scale versions) that can be independently stored and quickly retrieved based on the enlargement requirement.
2Measurement precision
If multiple partial enlarged images are displayed simultaneously, then user visibility and operational responsibility are improved, but processing complexity increases
Solution Approach 1:
By pre-computing and storing multiple scale versions of the image data, the system eliminates the need for complex real-time processing when displaying multiple partial enlarged images. Each displayed region can independently access its required scale level from pre-prepared datasets, significantly reducing processing complexity while maintaining high visibility.
3Adaptability or versatility
If real-time resizing is performed for partial area enlargement, then display flexibility is achieved, but image quality degrades due to filtering operations
Solution Approach 1:
The system performs the resizing operation in advance during data preparation, creating multiple scale versions before display is needed. This preliminary action allows the system to maintain high image quality by avoiding real-time filtering operations, while still providing display flexibility through on-demand selection of appropriate scale levels.
Data Source
AI summary
A display device includes a display part, a storage stores original image data of an original image, a detector detects a touch operation being performed on a screen of the display part, and outputs touch position information indicating a touch position, and a controller displays a base image by resizing the original image according to a display resolution of the display part on the display part. When the touch operation is detected, the controller determines an enlargement target area that is a part of area on the base image including a position corresponding to the touch position, resizes and cuts an area on the original image to generate a partial enlarged image in which the enlargement target area is enlarged, the area corresponding to the enlarged target area, and display the base image and the partial enlarged image which is displayed over a part of the base image.