Mobile Terminal Ineffective Region Setting for Camera Touch
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Solution Overview
Problem
In digital cameras, setting the displaying area to avoid touch positions results in a portion of the through image being cut out or reduced, making it difficult for users to view the imaged image and through image effectively.
Innovation Solution
A mobile terminal with a camera module, display, touch panel, and detecting module that sets an ineffective region within the touch range to prevent touch operations from interfering with image display, allowing the through image to be displayed without size reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the displaying area is set to avoid the touch position, then the touch operation can be detected accurately, but a portion of the through image is cut out or reduced
Solution Approach 1:
The display area is segmented into an effective region and an ineffective region. The ineffective region is set around the periphery of the effective region, allowing touch operations within the ineffective region to be ignored while maintaining the full display area for the through image. This segmentation resolves the contradiction by separating the detection function from the display function spatially.
2Reliability
If an ineffective region is set within the touch range, then touch operations in that region become ineffective, but the through image display area is reduced
Solution Approach 1:
Different regions of the touch panel are assigned different qualities or functions. The periphery region is designated as an ineffective region for touch operations, while the central region remains effective. This local differentiation allows the system to maintain high reliability for intended touch operations while preserving the maximum display area for the through image.
Data Source
AI summary
[Structure] A mobile phone 10 includes a camera control circuit 40 to which an image sensor 42, etc. are connected. If and when a camera function is performed, a through image is displayed on a display 30 on which a touch panel 38 is provided. At a time that the through image is being displayed, if and when a touch operation for designating a region after a touch operation is performed onto a setting key 70, an ineffective region 74 is set within a touch range of the touch panel 38. An imaging key 64 and a cancel key 72 are displayed in the effective region within the touch range excepting the ineffective region.