Display Panel Support Protrusions Prevent Orientation Layer Scratching
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Solution Overview
Problem
Liquid crystal display panels face display quality issues due to support columns contacting the orientation layer during deformation, leading to abnormal liquid crystal orientation and potential light leaks, which affect the aperture ratio and Mura risk.
Innovation Solution
The display panel design incorporates support protrusions on the orientation layer that protrude from the surface, with orthographic projections outside the subpixel unit opening areas, allowing support columns to contact the top ends of these protrusions instead of the orientation layer, preventing scratching and maintaining normal liquid crystal orientation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If support columns are designed to maintain liquid crystal box thickness, then display panel structure is improved, but support columns may contact the orientation layer during deformation causing abnormal liquid crystal orientation and light leaks
Solution Approach 1:
The patent introduces support protrusions as intermediary structures between the support columns and the orientation layer. These protrusions serve as mediators that prevent direct contact between the support columns and the orientation layer, thereby avoiding abnormal liquid crystal orientation while maintaining the liquid crystal box thickness. The protrusions act as a buffer zone that resolves the contradiction between structural stability and display quality reliability.
2Strength
If support columns contact the orientation layer surface, then structural support is provided, but liquid crystal orientation becomes abnormal and light leaks occur
Solution Approach 1:
The patent segments the support structure into two distinct parts: the support columns that provide structural support and the support protrusions that prevent harmful contact. By dividing the support function into these separate components, the patent maintains structural strength while preventing the support columns from directly contacting the orientation layer, thereby eliminating light leaks and abnormal liquid crystal orientation.
3Ease of manufacture
If support columns are positioned to maintain box thickness, then manufacturing is simplified, but contact with orientation layer causes Mura risk and aperture ratio reduction
Solution Approach 1:
The support protrusions serve as intermediary elements that simplify support column positioning while preventing contact with the orientation layer. This intermediary structure allows for easier manufacturing of the support columns without compromising aperture ratio consistency, as the protrusions guide the support columns to the correct positions without causing Mura risks or aperture ratio variations.
Data Source
AI summary
The present disclosure relates to a display panel and a manufacturing method thereof, a display device. The display panel includes an array substrate and a color film substrate set oppositely, the array substrate includes multiple subpixel units arranged in an array and an orientation layer covering multiple subpixel units, each subpixel unit includes an opening area; the color film substrate is provided with support columns, orthographic projections of the support columns on the subpixel units are outside the opening areas, the orientation layer is formed with support protrusions which protrude from a surface of the orientation layer, orthographic projections of the support protrusions on the subpixel units are outside the opening areas, the support columns contact top ends of the support protrusions to prevent the support columns from contacting the surface of the orientation layer.