User Selectable White Level Adjustment for Display Consistency
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Solution Overview
Problem
Information handling systems face challenges in providing user-adjustable white levels for display consistency across different devices, as existing systems lack a straightforward method to accommodate individual user preferences and variations in display panel whiteness levels.
Innovation Solution
An information handling system with a graphics system user interface application allows users to adjust the whiteness level of displayed images through a white color level adjustment screen, enabling users to select from various shades of white, which are applied uniformly across all pixels intended to display white, thereby ensuring consistent and personalized display settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed white level is used in display systems, then manufacturing and calibration are simplified, but user preference and display consistency across different devices cannot be accommodated
Solution Approach 1:
The patent applies parameter changes by modifying the white level parameter of the display through software-based color temperature adjustment. The system allows users to select from multiple predefined color temperatures (e.g., 6504K, 930K) or custom values, which changes the RGB gain parameters to achieve different white point appearances without altering the physical display hardware.
Solution Approach 2:
The patent implements universality by creating a white level adjustment mechanism that works across multiple information handling systems and display panels. The same software interface and adjustment methodology can be applied to different display technologies (LCD, LED, OLED) and multiple devices, providing consistent user experience across the product line while accommodating individual user preferences.
2Reliability
If display panel variations are not compensated, then system simplicity is maintained, but display consistency across multiple devices deteriorates
Solution Approach 1:
The patent applies preliminary action by providing predefined color temperature options that have been calibrated in advance to compensate for common display panel variations. Users can select from preset values (such as standard 6504K or warmer 930K) that have been pre-configured to achieve consistent appearance across different panel types, eliminating the need for complex real-time calibration while maintaining display consistency.
Solution Approach 2:
The system compensates for display panel variations by adjusting the RGB gain parameters to achieve target color temperatures. By changing the parameter values (R, G, B gains) based on the selected white level, the system corrects for inherent panel differences and achieves consistent visual appearance across multiple devices without requiring hardware modifications.
3Ease of operation
If multiple white level options are provided, then user preference accommodation is improved, but interface complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the continuous color temperature adjustment range into discrete, manageable segments or presets (e.g., 6504K, 930K, and custom options). This segmentation allows users to easily select from predefined categories rather than dealing with continuous adjustment, simplifying the user interface while still providing meaningful variation in white level appearance.
Data Source
AI summary
A method for implementing a user selectable white level includes displaying a default white patch of a default shade of white on a display, displaying a modified white patch of a modified shade of white that is different than the default shade of white on the display, receiving a selection of the modified white patch, associating another default shade of white with the modified shade of white in response to receiving the selection, receiving pixel data for a pixel, the pixel data comprising color information for displaying the default shade of white, and displaying the pixel with the second default shade of white.