OLED Display Panel Aperture Ratio Design for Luminance Uniformity
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Solution Overview
Problem
As OLED display devices increase in size, luminance uniformity worsens, leading to inconsistent service lives across different display regions, resulting in uneven display and a compromised user experience.
Innovation Solution
A display panel design with distinct display regions having varying aperture ratios, where regions with higher brightness have increased aperture ratios to extend service life, and a method to adjust aperture ratios based on luminous brightness ranges to achieve uniformity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the size of OLED display device increases, then the display area is enlarged, but the luminance uniformity deteriorates
Solution Approach 1:
The patent applies local quality by dividing the display panel into different display regions (first, second, and third display regions) with different aperture ratios. Specifically, the pixel units in the second and third display regions have larger aperture ratios than those in the first display region, creating local variations in optical properties to compensate for luminance non-uniformity across the large display area.
2Illumination intensity
If the aperture ratio of pixel units is increased to improve luminance, then the brightness is enhanced, but the service life becomes inconsistent across different regions
Solution Approach 1:
The patent implements local quality by assigning different aperture ratios to pixel units in different display regions. The second and third display regions have larger aperture ratios for higher brightness, while the first display region has smaller aperture ratios. This local differentiation ensures that each region operates at optimal brightness levels, resulting in consistent service life across all regions despite the large overall display size.
Data Source
AI summary
A display panel is provided. The display panel includes a display region and a non-display region. The display region has a first display region, a second display region, and a third display region, and the second display region and the third display region each have a display brightness greater than the first display region. Multiple pixel units are disposed in each of the first display region, the second display region, and the third display region, each of the plurality of pixel units in the second display region has an aperture ratio greater than each of the multiple pixel units in the first display region, and each of the multiple pixel units in the third display region has an aperture ratio greater than each of the multiple pixel units in the first display region. A design method of a display panel and a display device are also provided.