Burn-in Prevention for Electronic Display Static Areas
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Solution Overview
Problem
Display apparatuses, such as LCD, LED, and OLED panels, suffer from screen burn-in due to uneven aging of pixels, particularly in static areas like toolbars or icons, leading to local afterimages and reduced brightness, which existing technologies struggle to prevent effectively.
Innovation Solution
An electronic device and method that utilize a processing unit and graphics processing unit to detect static areas on a user interface, apply burn-in prevention processes by generating a translucent window or adjusting pixel brightness and color values within predetermined ranges, and use an on-screen-display mask to reduce burn-in by superimposing a transparency layer or adjusting pixel values.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If pixels in static areas are continuously illuminated to display toolbars or icons, then the user interface remains visible and functional, but the pixels age faster and develop different colors compared to surrounding areas, causing screen burn-in
Solution Approach 1:
The patent applies periodic action by cyclically changing the display content in static areas through multiple image layers. Instead of continuously displaying the same static image, the system periodically updates the pixel states by blending different images with varying transparency levels, preventing sustained illumination of identical pixel patterns while maintaining UI functionality.
Solution Approach 2:
The patent implements dynamics by transforming static display areas into dynamic ones. Multiple image layers with different transparency values are continuously blended and updated, causing pixels in previously static areas to vary their emission states over time. This dynamic approach prevents uniform aging while preserving the visual presence of toolbars and icons.
2Reliability
If image blending with translucent windows is applied to prevent burn-in, then pixel aging is reduced, but the processing complexity and computational resources required increase
Solution Approach 1:
The patent applies partial action by selectively blending image layers only in specific static areas rather than processing the entire display frame. By targeting only regions prone to burn-in (such as toolbar areas) with transparency blending while leaving other areas unchanged, the system reduces computational overhead while maintaining effective burn-in prevention where needed.
Solution Approach 2:
The patent segments the display into multiple image layers with different transparency values. Instead of processing a single full-resolution image, the system divides the visual content into stacked layers that can be independently manipulated and blended, reducing the computational complexity of burn-in prevention while achieving the desired effect through layer compositing.
3Reliability
If brightness and color values of pixels in static areas are adjusted within predetermined ranges, then burn-in is reduced, but the visual quality and color accuracy of the display may be compromised
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting brightness and color values of pixels within predetermined ranges rather than using fixed modifications. Multiple image layers with varying transparency parameters are blended to achieve subtle variations in pixel emission that prevent burn-in while staying within acceptable visual quality thresholds, thus balancing lifespan extension with color accuracy.
Solution Approach 2:
The patent implements local quality by applying different adjustment parameters to different regions of the display. Instead of uniformly modifying all pixels, the system selectively adjusts brightness and color values only in static areas prone to burn-in, using localized image blending with region-specific transparency values. This preserves color accuracy in dynamic areas while providing burn-in protection where needed.
Data Source
AI summary
An electronic device includes: a display panel and a host. The host is electrically connected to the display panel, and includes a processing unit and a graphics processing unit. The processing unit executes a driver program of the graphics processing unit and a specific program to render a display image of the specific program, wherein the display image includes a user interface. The processing unit obtains position information about a static area of the user interface. In response to the processing unit obtaining the position information about the static area of the user interface, the graphics processing unit performs a burn-in-prevention process on the static area via the driver program to generate an output image, and transmits the output image to the display panel for displaying.