Automotive Display Subpixel Cycle Control for Luminance Uniformity
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Solution Overview
Problem
The issue of luminance deviation due to different degradation in emission areas with varying emission angles in vehicle display panels is not adequately addressed by existing technologies, leading to potential display system degradation.
Innovation Solution
A display system and method that control the driving cycles of subpixels with different emission angles, varying these cycles based on location boundaries, using a gate driving circuit and timing controller to alternately emit subpixels with specific emission angles in defined areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple emission areas with different emission angles are arranged on the display panel to provide different information to driver and passengers, then information accessibility for different occupants is improved, but luminance deviation occurs due to different degradation in emission areas with different emission angles
Solution Approach 1:
The patent applies local quality by dividing the display panel into multiple emission areas (first emission area and second emission area) with different emission angles, where each area has optimized characteristics for specific viewing positions. The first emission area is optimized for driver viewing while the second emission area is optimized for passenger viewing, allowing each region to have tailored optical properties that match its intended use case.
Solution Approach 2:
The patent implements dynamics by dynamically adjusting the emission cycles of subpixels in different emission areas. The timing controller selectively controls the emission timing and duration of subpixels based on their location in different emission areas, creating a dynamic compensation mechanism that adapts to the different degradation rates of various emission angles and maintains luminance uniformity over time.
2Productivity
If subpixels with different emission angles are driven continuously to maintain display functionality, then display operation is maintained, but power consumption increases and degradation accelerates
Solution Approach 1:
The patent applies periodic action by implementing selective emission cycles for subpixels in different emission areas. Instead of continuous operation, subpixels are activated in periodic intervals based on their emission area and degradation characteristics. The timing controller manages these periodic emission cycles to maintain necessary display functionality while reducing overall power consumption and slowing degradation.
Solution Approach 2:
The patent implements partial action by activating only the necessary portion of subpixels at any given time based on viewing requirements and degradation status. The timing controller selectively drives subpixels in different emission areas with appropriate emission cycles, avoiding unnecessary operation of subpixels that are not currently needed for optimal viewing conditions, thereby reducing power consumption while maintaining display operation.
Data Source
AI summary
The present disclosure relates to a display system, display driving method and a vehicle. Embodiments of the disclosure may provide a display system comprising a display panel including a plurality of unit subpixels comprising a first subpixel with a first emission angle and a second subpixel with a second emission angle, a gate driving circuit configured to supply gate signals to the display panel, and a timing controller configured to control an emission cycle of the first subpixel or the second subpixel for an emission cycle control area between an first area where the first subpixel emits light and an second area where the second subpixel emits light.