Display Panel Aperture Ratio Adjustment for Irregular Edge Sawtooth
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Solution Overview
Problem
Display devices with irregular display regions, such as non-rectangular shapes, face challenges in achieving improved display effects due to issues like sawtooth shapes at the edges, which affect user viewing experience.
Innovation Solution
A display panel design that includes a display region with a fold line formed by connecting line segments in the row and column directions, featuring a parallelogram region where the aperture ratios of pixel units increase gradually in specific directions, thereby weakening the sawtooth shape at the edge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display region has an irregular shape (circular or polygon), then the display device can adapt to different form factors and application fields, but the display effect deteriorates due to sawtooth shapes at the edges
Solution Approach 1:
The patent applies local quality by differentiating aperture ratios across different regions of the display panel. Specifically, pixel units in the parallelogram region (located at the corners of irregular display regions) have different aperture ratios compared to those in the central region. This local differentiation compensates for the geometric distortion caused by irregular shapes, ensuring uniform display effects throughout the panel while maintaining adaptability to various form factors.
Solution Approach 2:
The patent employs parameter changes by systematically varying the aperture ratio parameter across different spatial locations. The aperture ratio of pixel units is increased in the parallelogram region and decreased in other regions, creating a non-uniform aperture distribution that compensates for geometric distortions. This parameter modulation enables irregular-shaped displays to achieve uniform visual output, resolving the contradiction between form factor adaptability and display uniformity.
2Illumination intensity
If the aperture ratio of pixel units is increased to improve brightness, then the display brightness improves, but the aperture ratio distribution becomes non-uniform, creating visible sawtooth patterns
Solution Approach 1:
The patent applies local quality by differentiating aperture ratios across different regions of the display panel. Specifically, pixel units in the parallelogram region (located at the corners of irregular display regions) have different aperture ratios compared to those in the central region. This local differentiation compensates for the geometric distortion caused by irregular shapes, ensuring uniform display effects throughout the panel while maintaining adaptability to various form factors.
Solution Approach 2:
The patent employs parameter changes by systematically varying the aperture ratio parameter across different spatial locations. The aperture ratio of pixel units is increased in the parallelogram region and decreased in other regions, creating a non-uniform aperture distribution that compensates for geometric distortions. This parameter modulation enables irregular-shaped displays to achieve uniform visual output, resolving the contradiction between form factor adaptability and display uniformity.
3Ease of manufacture
If the display region boundary is defined by straight line segments, then the manufacturing process is simplified, but the edge appearance becomes visible and affects viewing experience
Solution Approach 1:
The patent applies local quality by differentiating aperture ratios across different regions of the display panel. Specifically, pixel units in the parallelogram region (located at the corners of irregular display regions) have different aperture ratios compared to those in the central region. This local differentiation compensates for the geometric distortion caused by irregular shapes, ensuring uniform display effects throughout the panel while maintaining adaptability to various form factors.
Solution Approach 2:
The patent converts the harmful visible edge effects into a beneficial uniform display effect by strategically increasing aperture ratios in the parallelogram region. This transformation turns the geometric distortion caused by straight-line boundaries into an opportunity for optical compensation, where the aperture variation in specific regions counteracts the visual impact of the boundary, effectively hiding the edge while maintaining manufacturing simplicity.
Data Source
AI summary
A display panel a display device are provided. The display panel includes a plurality of pixel units arranged in a row direction and in a column direction, the display panel includes a display region. An edge of the display region includes a fold line formed by connecting a line segment extending in the row direction and a line segment extending in the column direction, a parallelogram region formed in the display region taking two adjacent line segments as adjacent sides includes the pixel units; directions from an intersection point of the two adjacent line segments to end points of the two adjacent line segments other than those at the intersection point are a first direction and a second direction, respectively; in the parallelogram region, aperture ratios of the pixel units arranged in at least one of the first direction and the second direction increase gradually.