Display Control Device Drawing Period Synchronization
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Solution Overview
Problem
Existing display control systems face issues with maintaining display quality when the frame interval of content does not match the update interval of the liquid crystal display, leading to dropped frames and deterioration in display quality, especially when handling still images and rapid drawing update requests.
Innovation Solution
A display control device and method that set distinct first drawing periods and drawing update waiting periods, ensuring the combined period matches the frame interval of the content, allowing for quick updates after receiving drawing update requests and preventing dropped frames.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the liquid crystal panel is driven at a constant frequency, then the display device can maintain stable operation, but the frame interval of content and the update interval of the display may not match, causing dropped frames and deterioration in display quality
Solution Approach 1:
The patent applies dynamics by making the display update frequency adjustable rather than fixed. The control device dynamically changes the update frequency of the liquid crystal panel to match the frame interval of the content being displayed. This allows the system to adapt between stable constant frequency operation and synchronized variable frequency operation, resolving the contradiction between operational stability and display quality.
2Device complexity
If the display updates at a constant frequency interval, then the display control is simple, but when drawing update requests arrive faster than the update interval, the drawing can only be updated at the currently set frequency interval, leading to delayed updates
Solution Approach 1:
The control device dynamically adjusts the update frequency based on incoming drawing update requests. When requests arrive faster than the current update interval, the system increases the update frequency to process requests more quickly. This dynamic adjustment resolves the contradiction between simple constant frequency control and fast drawing update speed.
Solution Approach 2:
The patent changes the temporal parameter (update frequency) of the display system to match the requirements of incoming drawing requests. By adjusting the update interval parameter dynamically, the system can handle varying request rates without being constrained by a fixed frequency, thus improving drawing update speed while maintaining manageable control complexity.
3Illumination intensity
If the display is optimized for video display with frequent updates, then video quality is maintained, but for still images with wider update intervals, the constant frequency driving causes mismatch with content frame intervals
Solution Approach 1:
The system dynamically adjusts its operation mode based on content type. For video content, it maintains higher update frequencies for quality display. For still images, it reduces update frequency to match the wider frame intervals, preventing the mismatch that causes display quality deterioration. This dynamic adaptation resolves the contradiction between video and still image display quality.
Data Source
AI summary
According to the present invention, it is possible to (i) prevent a deterioration in display quality caused by a disagreement between a frame interval of content and an interval for updating drawing, and (ii) carry out update of drawing quickly after receipt of a drawing update request. The drawing control section sets a first drawing period and a drawing update waiting period so that the periods become different in length and a combined length of those periods matches a frame interval of content.