LCD Panel Spacer Layout for Stable Alignment Under Pressure
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Solution Overview
Problem
High-resolution LCD panels face issues such as abnormal liquid crystal alignment and uncontrollable light leakage due to the sliding of the color film substrate relative to the array substrate during pressure tests, causing scratches on the alignment film.
Innovation Solution
A display panel design featuring an array substrate with a specific wiring arrangement and a spacer positioned on the alignment part of the data line, which is supported by a shielding layer on the color filter substrate, ensuring stable alignment and preventing scratches during pressure tests.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If high-resolution LCD panels are developed with increased pixels, then display resolution is improved, but the color film substrate slides relative to the array substrate during pressure tests, causing scratches on the alignment film and abnormal liquid crystal alignment
Solution Approach 1:
The patent introduces a shielding layer as an intermediary component between the color film substrate and the array substrate. This shielding layer, positioned at the intersection area of first and second wiring regions, prevents direct contact and relative sliding between the substrates during pressure tests, thereby eliminating scratches on the alignment film while maintaining high display resolution
2Stability of the object's composition
If the spacer is positioned on the alignment part of the data line in the intersection area of wiring regions, then liquid crystal alignment stability is improved and light leakage is reduced, but the device structure becomes more complex
Solution Approach 1:
The patent applies local quality by positioning the spacer specifically at the alignment part located in the intersection area of first and second wiring regions, rather than uniformly distributing spacers throughout. This localized placement provides targeted alignment stability and light leakage prevention exactly where the wiring intersections create potential alignment issues, without requiring complex modifications to the entire device structure
Data Source
AI summary
A display panel and a display device are disclosed. The display panel comprises an array substrate and spacers; the array substrate comprises a first substrate, gate lines, data lines, and multiple sub-pixel units; the first substrate is provided with multiple sub-pixel regions, first wiring regions each located between two adjacent rows of sub-pixel regions, and second wiring regions each located between two adjacent columns of sub-pixel regions and intersecting the first wiring regions; at least part of each sub-pixel unit is located on a sub-pixel region; the gate lines and the data lines are respectively located on the first wiring regions and the second wiring regions and are electrically connected to the sub-pixel units; the data lines and the gate lines are insulated from each other and intersect each other; each data line is provided with an alignment part.