Display Mode Transition Control to Prevent Screen Flicker
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Solution Overview
Problem
Display devices experience screen flickering during mode transitions due to unstable control signals when switching between display modes with different frequencies or brightness levels.
Innovation Solution
Implementing a display transition period where the first control signal stabilizes, allowing a second control signal to guide the display device during this period, followed by stable display in the target mode using the first control signal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If display mode switching is performed directly without transition period, then switching speed is improved, but screen flicker occurs due to unstable control signals
Solution Approach 1:
The patent applies preliminary action by establishing a transition period before the display mode switching is fully completed. During this transition period, the first control signal is maintained at an active level to ensure stable display output while the mode switching process is underway, preventing flicker before it can occur.
Solution Approach 2:
The patent uses an intermediary approach by introducing a transition period as a buffer state between the first display mode and second display mode. This transition period acts as an intermediary phase where control signals are carefully managed to ensure smooth transition without display instability.
2Reliability
If transition period is extended to ensure signal stability, then display stability is improved, but switching time increases
Solution Approach 1:
The patent applies partial action by providing just enough transition period to ensure signal stability without extending it unnecessarily. The transition period is configured to last only until the control signals stabilize, avoiding excessive delay while still preventing flicker.
3Reliability
If control signals are managed carefully during transition, then screen flicker is prevented, but control circuit complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the control process into distinct phases: a transition period with specific signal management rules and a normal operation period. This segmentation allows for simplified control logic within each phase while maintaining overall system stability.
Data Source
AI summary
An apparatus and a method of controlling display, and a display device are provided, which is applicable to a field of display. The apparatus includes: a first control circuit configured to, in response to an instruction being detected, control a display device to enter a display transition period, allow a first control signal to be at an active level at a first predetermined time of the display transition period, and allow a second control signal to be at an inactive level at a second predetermined time of the display transition period; and a display circuit configured to, in response to a detection that the second control signal is at the inactive level, control the display device to display in the second display mode according to the first control signal during a display period, where the second control signal controls the display device to display in the first display mode.