Foldable Screen GOA/EOA Timing to Prevent Display Mismatch
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Solution Overview
Problem
Outward-foldable screens experience display differences and visual issues due to prolonged operation of secondary screen GOA and EOA in different states from primary screen GOA and EOA, leading to color and luminance discrepancies and white screen flashing during color inversion.
Innovation Solution
Implementing a control method that alternates the operation of secondary screen GOA and EOA periodically, ensuring they are in a one-on one-off state to maintain consistent display states and prevent white screen flashing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the secondary screen GOA and EOA are turned off to reduce power consumption during primary-screen display state, then power consumption is reduced, but display difference and visual quality degradation occur when switching to full-screen display state
Solution Approach 1:
The patent applies periodic action by implementing a timing mechanism that periodically activates the secondary screen GOA and EOA during the primary-screen display state. The control unit alternates between first and second time intervals, where in the first interval the secondary screen components are activated while the primary screen is inactive, and in the second interval both screens are inactive. This periodic activation maintains the operational state of secondary screen components without requiring continuous display, thus preventing display inconsistency while reducing overall power consumption compared to keeping components continuously active.
2Use of energy by moving object
If the secondary screen GOA and EOA remain in different operating states from primary screen GOA and EOA for a long time, then power consumption is reduced, but color and luminance discrepancies occur between primary and secondary screens
Solution Approach 1:
The patent applies preliminary action by having the secondary screen GOA and EOA undergo periodic activation cycles before the full-screen display state is needed. During the primary-screen display state, the control unit periodically switches the secondary screen components between active and inactive states, allowing them to undergo preliminary operational cycles that synchronize their state with the primary screen components. This preliminary action ensures that when full-screen display is activated, both sets of components are in comparable operational states, preventing color and luminance discrepancies.
3Reliability
If the secondary screen displays no image during periodic operation of GOA and EOA, then display difference is avoided, but white screen flashing may occur during color inversion mode
Solution Approach 1:
The patent applies feedback by implementing a control mechanism that monitors the operational state of the secondary screen components and adjusts their activation accordingly. The control unit receives feedback about the display mode (including color inversion mode) and adjusts the timing and activation of secondary screen GOA and EOA to prevent white screen flashing. During color inversion mode, the feedback mechanism ensures that the secondary screen components are activated in a way that maintains proper display characteristics, preventing the harmful white screen flashing effect while maintaining display consistency.
Data Source
AI summary
This application relates to the field of outward-foldable screen technologies, and discloses a control method, a storage medium, and an electronic device. The method includes: When the electronic device performs primary-screen display, a secondary screen emit gate driver on array (emit gate driver on array, EOA) and a secondary screen gate driver on array (gate driver on array, GOA) are controlled to be in a one-on one-off state periodically. When the secondary screen EOA is turned on, the secondary screen GOA is turned off. To be specific, a display signal of the secondary screen EOA cannot act on a drive module because a path of the secondary screen GOA is disconnected. When the secondary screen EOA is turned off, the secondary screen GOA is turned on. To be specific, the drive module cannot obtain the display signal.