Corner Display Pixel Layout With Cutout Pattern for Uniform Luminance
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Solution Overview
Problem
Existing display devices struggle to effectively display images on corner portions due to design limitations, leading to uneven luminance and strain from bending forces.
Innovation Solution
The display device incorporates a substrate with a cutout pattern in the corner portion, featuring second pixels and dummy pixel driving units, along with connection lines and specific transistor configurations to maintain uniform luminance and reduce strain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If pixels are disposed in the corner portion of the display device, then image display capability on the corner is improved, but strain concentration and manufacturing complexity increase
Solution Approach 1:
The corner portion is divided into multiple pixel units with different configurations. Specifically, the corner includes first pixels adjacent to the first side portion, second pixels adjacent to the second side portion, and third pixels at the vertex, allowing each segment to be optimized independently for strain distribution and image display.
Solution Approach 2:
Different pixel types are assigned to different locations within the corner portion based on their specific structural characteristics. First pixels have a first structural characteristic, second pixels have a second structural characteristic, and third pixels have a third structural characteristic, enabling localized optimization for both strain resistance and display quality.
2Strength
If the corner portion has a cutout pattern to reduce strain, then strain resistance is improved, but manufacturing precision requirements increase
Solution Approach 1:
The cutout pattern is pre-designed and pre-formed in the corner portion during the manufacturing process. The cutout removes material in advance from specific locations to reduce strain concentration before the display device is assembled and put into service, preventing structural failure rather than addressing it afterward.
3Illumination intensity
If dummy pixel driving units are added to the cutout pattern area, then luminance uniformity is improved, but device complexity increases
Solution Approach 1:
Dummy pixel driving units are introduced in the cutout pattern area to replicate the electrical and optical characteristics of real pixels. These dummy units copy the driving signals and luminance output of adjacent functional pixels, creating a visual transition zone that masks the structural discontinuity and maintains perceived luminance uniformity across the display surface.
Data Source
AI summary
A display device includes a substrate including a front portion, a first side portion extending from a first side of the front portion, a second side portion extending from a second side of the front portion, and a corner portion between the first side portion and the second side portion and having a cutout pattern, a first display area including first pixels in the front portion, and a second display area including second pixels and dummy pixel driving units in the cutout pattern of the corner portion. Each of the second pixels includes a subpixel light emitting unit emitting light and a subpixel driving unit connected to the subpixel light emitting unit. Any one of the dummy pixel driving units is closer to an edge of the cutout pattern than the subpixel driving unit of any one of the second pixels is the edge of the cutout pattern.