Display Controller Screen Grouping for Dual Display Inconsistency
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Solution Overview
Problem
When two displays are showing screens associated with the same function, user interactions on one display can lead to inconsistencies between the displayed content and the actual state of the function, causing confusion and making the content on one display meaningless.
Innovation Solution
A display controller that uses screen grouping data to determine if a screen transition request is issued to display screens belonging to the same group on both displays, and if so, it displays screens from different groups on one of the displays to prevent inconsistency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the same function screen is displayed on both displays, then the user can access the function from either display, but inconsistency occurs when the user changes the operating state on one display
Solution Approach 1:
The patent assigns different functional roles to different displays based on their characteristics. The first display (main display) handles primary function execution, while the second display (sub display) handles secondary functions or different function groups. This local differentiation prevents the inconsistency problem by ensuring that screens from the same function group are not simultaneously displayed on both displays.
Solution Approach 2:
The patent segments display screens into distinct function groups and assigns these groups to different displays. By dividing the overall display functionality into separate groups (e.g., navigation group on first display, entertainment group on second display), the system prevents conflicting operations on the same function across multiple displays.
2Adaptability or versatility
If screens from the same function group are displayed on both displays, then the system provides redundant access to functions, but the content becomes meaningless when one display is used to change the operating state
Solution Approach 1:
Different displays are assigned different function groups based on their characteristics and usage scenarios. The main display handles critical functions where consistency is paramount, while secondary displays handle complementary functions. This ensures that each display shows meaningful content appropriate to its role, preventing the loss of information meaningfulness.
3Ease of operation
If the display controller allows free screen transitions on both displays, then the system is flexible in responding to user requests, but inconsistency arises when both displays show screens from the same function group
Solution Approach 1:
The display controller continuously monitors the current display states and function group assignments. When a screen transition request is received, the controller checks whether the target screen belongs to a function group already displayed on the other display. This feedback mechanism ensures that screen transitions maintain consistency while still providing operational flexibility.
Solution Approach 2:
The system dynamically adjusts screen assignment based on real-time display states and user interactions. When inconsistency is detected or predicted, the system dynamically modifies which display shows which function group, ensuring that screens from the same function group are not simultaneously displayed on both displays while maintaining responsive operation.
Data Source
AI summary
A display controller for controlling a first display and a second display is provided. The display controller includes a determination unit and a display control unit. From a memory, the determination unit reads a screen grouping data classifying a plurality of display screens into groups on a function basis, and determines whether a specific screen transition request, which is a request that a screen belonging to the same group as a screen displayed on one display of the first and the second displays be displayed on the other display of the first and the second displays is issued. Based on determining that the specific screen transition request is issued, the display control unit displays on the one display of the first and second displays a screen other than the screen belonging to the same group.