Curved Display Panel Pixel Density and Brightness Uniformity
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Solution Overview
Problem
Curved surface display panels face issues with non-uniform display brightness due to misalignment between substrates, leading to color mixture and light leakage, which are exacerbated by non-equal-interval pixel units designed to address misalignment, resulting in uneven pixel distribution density.
Innovation Solution
A curved surface display panel with a color film substrate featuring pixel units whose intervals and widths decrease along the curvature, ensuring uniform aperture ratios and pixel density across the panel, thereby maintaining consistent brightness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If non-equal-interval pixel units are used to balance substrate bending degrees, then misalignment between substrates is reduced, but display brightness becomes non-uniform
Solution Approach 1:
The patent applies local quality by making different parts of the pixel array have different interval characteristics. Specifically, pixel units in the first array have equal intervals while pixel units in the second array have non-equal intervals, allowing each region to be optimized for its specific function (alignment vs. brightness uniformity).
Solution Approach 2:
The patent segments the pixel array into two distinct groups: a first array with equal-interval pixel units and a second array with non-equal interval pixel units. This segmentation allows the system to simultaneously achieve substrate alignment (through the non-equal interval array) and display brightness uniformity (through the equal interval array).
2Illumination intensity
If equal-interval pixel units are used, then display brightness remains uniform, but misalignment between substrates increases causing color mixture and light leakage
Solution Approach 1:
The patent changes the interval parameter of pixel units based on their position and function. By adjusting the interval parameter from equal to non-equal in different arrays, the system can optimize for either brightness uniformity or substrate alignment depending on the specific requirements of each pixel unit group.
3Manufacturing precision
If non-equal-interval pixel units are used to address misalignment, then substrate alignment improves, but pixel distribution density becomes uneven
Solution Approach 1:
The patent segments the pixel array into two distinct groups: a first array with equal-interval pixel units that maintain uniform pixel distribution density, and a second array with non-equal interval pixel units that achieve substrate alignment. This segmentation allows both requirements to be satisfied simultaneously in different regions.
Solution Approach 2:
The patent applies local quality by making different parts of the pixel array have different interval characteristics. Specifically, pixel units in the first array have equal intervals to maintain uniform pixel distribution, while pixel units in the second array have non-equal intervals to achieve substrate alignment.
Data Source
AI summary
A curved surface display panel and a display device, wherein the curved surface display panel includes a color film substrate having an arc-shaped cross section along a first direction, wherein the color film substrate includes: a first area and a second area arranged along the first direction, a common border between first and second area is first axis; and a plurality of pixel units arranged along first direction, wherein a respective interval separates each adjacent two pixel units of the plurality of pixel units, and the pixel units each has a width in a second direction, the interval between each adjacent two pixel units decreases from first axis towards each side along first direction, and the width in second direction of each pixel unit decreases from the first axis towards each side along the first direction; wherein first direction intersects with second direction.