Circular Display Pixel Layout With Repair Pixels and Load Matching
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Solution Overview
Problem
Display devices face challenges in minimizing dead space and maximizing display area, particularly in circular or curved shapes, where the arrangement of pixels and drivers is inefficient, leading to non-uniform luminance and potential image quality deterioration.
Innovation Solution
The implementation of a display device design that includes a circular or curved display area with a non-display area surrounding it, featuring load matchers, repair pixels, light emitting control drivers, and lighting circuits strategically positioned in the non-display area to connect with pixels, reducing dead space and ensuring uniform luminance by redistributing load and facilitating parallel arrangement of repair pixels with light emitting control circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If pixels and drivers are arranged in conventional rectangular shapes, then manufacturing is easier, but dead space increases and display area is reduced
Solution Approach 1:
The patent applies curvature by transitioning from conventional rectangular pixel and driver arrangements to circular or curved display geometries. This allows the display area to extend into regions that would otherwise be dead space in rectangular designs, thereby increasing the effective display area while maintaining manufacturability through systematic repositioning of pixels and drivers along curved paths.
2Area of stationary object
If repair pixels are disposed in the display area, then image quality is maintained, but dead space increases
Solution Approach 1:
The patent relocates repair pixels from the traditional two-dimensional display area into the third spatial dimension by positioning them in the non-display area surrounding the circular display. This dimensional transition allows repair pixels to remain functionally integrated with the display while eliminating their occupation of valuable display real estate, thus reducing dead space while maintaining reliability.
3Illumination intensity
If load matcher is added to ensure uniform luminance, then image quality improves, but device complexity increases
Solution Approach 1:
The patent merges the load matcher functionality with existing pixel structures by integrating load matching electrodes into the pixel electrode configurations. This consolidation achieves uniform luminance across the curved display surface without adding separate, discrete load matcher components, thereby improving illumination uniformity while minimizing increases in device complexity.
4Area of stationary object
If circular or curved display area is implemented, then dead space is reduced, but pixel and driver arrangement becomes more complex
Solution Approach 1:
The patent creates a universal arrangement system where pixels and drivers are designed to function effectively in curved geometries. By establishing standardized curved-path positioning and connection methods, the system achieves multi-functional adaptability that simplifies the overall arrangement complexity despite the non-conventional circular shape, allowing systematic placement that reduces dead space while maintaining manufacturability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design effectively reduces dead space, maintains uniform luminance, and enhances image quality by allowing for a wider display area utilization and efficient signal transmission, even when some pixels malfunction, by using repair pixels to support light emission in the non-display area.
Implementation Method 1
the lower electrode and the upper electrode may form a capacitor
Data Source
AI summary
A display device includes a circular display area and a non-display area surrounding the circular display area. The display device may further include a load matcher disposed adjacent to an edge of the circular display area in the circular display area, a pixel disposed in the circular display area, spaced apart from the non-display area by the load matcher, and connected to the load matcher, and a repair pixel disposed adjacent to the edge of the circular display area in the non-display area, and connected to the pixel.