Liquid Crystal Display Overlapping Electrodes Spacer Design
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Solution Overview
Problem
The contamination of the liquid crystal layer in liquid crystal displays due to contact with organic or inorganic materials in light blocking members leads to deterioration in display quality, including spots and afterimages.
Innovation Solution
A liquid crystal display design featuring overlapping electrodes with a light blocking member and spacers formed from transparent insulating materials, where the spacers maintain a gap between display panels and prevent contamination of the alignment and liquid crystal layers, enhancing transmittance and viewing angle while mitigating display quality issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a light blocking member is formed on the display panel, then misalignment between display panels is corrected, but the light blocking member contaminates the liquid crystal layer and alignment layer, leading to deterioration in display quality
Solution Approach 1:
A cover layer is introduced as an intermediary between the light blocking member and the liquid crystal layer. This cover layer prevents direct contact between the light blocking member and the liquid crystal layer, thereby eliminating contamination while maintaining the alignment function of the light blocking member. The cover layer acts as a protective barrier that mediates between the structural component (light blocking member) and the functional layer (liquid crystal layer).
Solution Approach 2:
The structure is segmented into distinct functional layers: the light blocking member forms the structural base for alignment, the cover layer provides contamination protection, and the liquid crystal layer maintains its purity for optimal display performance. This segmentation allows each layer to perform its specific function without interfering with or contaminating other layers.
2Manufacturing precision
If the light blocking member contacts the liquid crystal layer, then alignment is achieved, but display quality deteriorates due to spots and afterimages caused by contamination
Solution Approach 1:
The cover layer serves as a mediator that enables alignment to be achieved through the light blocking member while simultaneously preventing contamination that would cause spots and afterimages. This intermediary layer ensures that the alignment function is maintained without compromising display quality.
Solution Approach 2:
The potential harm of the light blocking member contacting the liquid crystal layer is converted into a benefit by introducing the cover layer. The cover layer transforms the potentially harmful direct contact into a beneficial indirect contact arrangement, where alignment is achieved without contamination, thereby preventing display quality issues.
Data Source
AI summary
A liquid crystal display is provided. The liquid crystal display includes a first substrate, and a first electrode and a second electrode formed overlapping with each other on the first substrate, wherein a first insulating layer is disposed between the first electrode and the second electrode. The liquid crystal display further includes a light blocking member formed on the second electrode, a first spacer and a second spacer formed on the light blocking member, and a second substrate facing the first substrate.