Grayscale Characteristic Adjustment for Image Display Apparatus
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Solution Overview
Problem
Existing image display apparatuses have limited options for smooth image adjustment, making it difficult for users to select the desired image adjusting items and perceive changes in image adjustments.
Innovation Solution
An image display apparatus with an image signal processing unit, a display unit, and a grayscale characteristic changing unit that allows users to adjust grayscale values and display selection screens to easily select and visualize the desired grayscale characteristics, enabling smooth image adjustments according to user preferences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the number of adjusting items is increased to implement smooth image adjusting, then the image adjusting becomes smoother, but the change of the image involved with the image adjusting is not easy to perceive in advance and it is difficult to determine which adjusting items are selected
Solution Approach 1:
The patent uses visual display of grayscale characteristics on a screen, where different grayscale characteristics are represented by visible differences in brightness or contrast. This allows users to perceive the changes in image characteristics as they select different adjusting items, resolving the contradiction between having many adjusting options and being able to detect the changes.
Solution Approach 2:
The patent implements a feedback mechanism by displaying the selected grayscale characteristic and the corresponding image adjustment effect in real-time. This feedback loop allows users to see the immediate result of their selection, making it easier to determine which adjusting items are selected and how they affect the image.
2Device complexity
If a small number of predetermined selection items are provided, then the device complexity is reduced, but the image adjusting is not smoothly performed
Solution Approach 1:
The patent transforms the static list of predetermined selection items into a dynamic adjustment system. Users can continuously adjust the grayscale characteristic within a range, and the system provides real-time feedback on the changes. This dynamic approach allows for smooth image adjusting without being limited to a fixed small number of selection items.
Solution Approach 2:
The patent segments the grayscale adjustment into multiple discrete steps or levels within a continuous range. By dividing the adjustment into manageable segments while maintaining the ability to move between them smoothly, the system provides both structure and flexibility, allowing smooth adjustment without overwhelming complexity.
3Ease of operation
If the number of adjusting items is increased, then the image adjusting becomes smoother, but it is difficult to determine which adjusting items are selected
Solution Approach 1:
The patent implements a feedback mechanism that continuously displays information about the currently selected grayscale characteristic and the corresponding image adjustment effect. This feedback loop ensures that users always know which adjusting items are selected and how they affect the image, preventing information loss even when many adjusting options are available.
Solution Approach 2:
The patent introduces a visual display as an intermediary between the adjusting items and the user's perception. This intermediary element (the display showing grayscale characteristics and image effects) mediates the relationship between the numerous adjusting options and the user's ability to identify and select the desired settings, making the selection process transparent and informative.
Data Source
AI summary
An image display apparatus includes: an image signal processing unit which adjusts an input grayscale values included in an input image signal according to a predetermined grayscale characteristic; a display unit which displays an image based on an image signal included in an output grayscale value adjusted by the image signal processing unit; and a grayscale characteristic changing unit which changes a correlation between the input and output grayscale values defined based on the grayscale characteristic.