Dynamic Scroll Range Adjustment for Display Apparatus
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Solution Overview
Problem
Existing display apparatuses limit the scroll range of images, leading to increased blank areas and reduced usability, as they cannot adapt the scroll range based on the image display state.
Innovation Solution
A display apparatus with a superimposing section that overlays a mask image on the input image, allowing for adjustable scroll ranges depending on whether the input image or superimposed image is displayed, enabling wider scrolling when the superimposed image is shown and restricting scrolling when the input image is shown to prevent blank areas from being displayed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the scroll range is limited to a fixed range, then the ratio of blank area to overall display area is controlled, but the usability of the display apparatus is lowered in cases where wider scrolling is needed
Solution Approach 1:
The patent applies dynamics by making the scroll range adjustable rather than fixed. The control unit dynamically changes the scroll range based on the detected image display state, allowing the system to adapt between a limited scroll range (when image edges are near display edges) and an extended scroll range (when blank areas are present), thereby resolving the contradiction between controlling blank area ratio and maintaining usability
Solution Approach 2:
The patent changes the parameter of scroll range based on the image display state. When the image display state indicates that blank areas are present, the scroll range is extended beyond the fixed range; when image edges are near display edges, the scroll range is limited. This parameter change allows the system to optimize between preventing excessive blank areas and enabling sufficient scrolling flexibility
2Ease of operation
If the scroll range is extended beyond fixed range, then usability is improved, but the ratio of blank area to overall display area increases excessively
Solution Approach 1:
The system dynamically adjusts the scroll range based on real-time detection of image display state. When the detection unit determines that extending the scroll range would create excessive blank areas, the control unit limits the scroll range accordingly. This dynamic adjustment allows the system to provide extended scrolling capability when needed while preventing excessive blank areas, resolving the contradiction between usability improvement and blank area control
Solution Approach 2:
The patent implements feedback through the detection unit that continuously monitors the image display state and provides information to the control unit. Based on this feedback about image position and display edges, the control unit adjusts the scroll range appropriately, enabling the system to respond to actual display conditions and optimize the balance between usability and blank area ratio
Data Source
AI summary
A projector includes a display controller that scrolls image data within liquid crystal panels in accordance with operation accepted via an operation/display panel in a case where a display section displays the image data and scrolls the image data that forms combined image data within liquid crystal panels in accordance with operation accepted by the operation/display panel in a case where the display section displays the combined image data. A scroll range over which the image data that forms the combined image data is scrolled in the case where the display section displays the combined image data is wider than a scroll range over which the image data is scrolled in the case where the display section displays the image data.