Display Panel Spacer Configuration for Touch Precision
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Solution Overview
Problem
Conventional spacers in display panels with touch functions cause a large deformed area, affecting touch detection precision.
Innovation Solution
The use of spacers with specific dimensions and shapes, such as first spacers on the array substrate and overlapping second and third spacers on the color filter substrate, to maintain an optimal liquid crystal layer thickness and prevent deformation during touch operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional spacers are used to maintain liquid crystal layer thickness, then the gap between array substrate and color filter substrate is controlled, but touch detection precision deteriorates due to large deformed area
Solution Approach 1:
The spacer structure is divided into multiple parts: first spacers on the array substrate, and second and third spacers on the color filter substrate. This segmentation allows each spacer component to have optimized dimensions and positions, reducing the overall deformed area while maintaining liquid crystal layer thickness control.
Solution Approach 2:
The spacers are designed with specific local dimensions and shapes tailored to their positions. The first spacers have different characteristics from the second and third spacers, allowing each to optimally perform its function in its specific location, thereby controlling thickness while minimizing deformation impact on touch detection.
2Reliability
If spacers are used to maintain optimal liquid crystal layer thickness, then display performance is improved, but device complexity increases due to multiple spacer components
Solution Approach 1:
The spacers serve multiple functions: maintaining liquid crystal layer thickness, preventing substrate deformation during touch operations, and potentially serving as alignment references. By designing the spacer system to perform multiple functions, the need for additional separate components is reduced, balancing complexity with performance.
Solution Approach 2:
The second and third spacers on the color filter substrate work together as an integrated system to maintain thickness and prevent deformation. Their overlapping configuration combines their effects to achieve the desired structural stability with a unified design approach.
Data Source
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AI summary
A display panel includes an array substrate, a color filter substrate, a liquid crystal layer and a plurality of spacers located between the array substrate and the color filter substrate. The plurality of spacers include at least one first spacer, at least one second spacer and at least one third spacer. The at least one first spacer is on the array substrate, the at least one second spacer and the at least one third spacer are on the color filter substrate and respectively overlap the at least one first spacer in a direction perpendicular to the display panel. The at least one first spacer, the at least one second spacer and the at least one third spacer have a first height, a second height and a third height respectively along the direction perpendicular to the display panel, and the second height is different from the third height.