Curved LCD Panel Compensation Layer Thickness Uniformity
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Curved liquid crystal display panels face issues with non-uniform thickness leading to reduced transmittance and color shift due to bending, resulting in differing image quality between the middle and edge regions.
Innovation Solution
A curved liquid crystal display panel design featuring a compensation layer on the second substrate in the middle region and filling the space between the substrate and the compensation layer with compensating liquid crystal molecules, which makes the thickness uniform and increases transmittance, reducing color shift.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the display panel is bent to create a curved surface, then the viewing field is widened and viewing comfort is improved, but the thickness of the liquid crystal cell becomes non-uniform causing reduced transmittance in the middle region
Solution Approach 1:
The patent introduces a compensation layer specifically in the middle region of the curved display panel where the liquid crystal cell thickness is smallest. This local quality adjustment ensures that the middle region has the same light transmittance as the edge regions, resolving the uniformity issue while maintaining the overall curved geometry for widened viewing field.
2Ease of operation
If the display panel is bent, then a curved surface is achieved for better viewing comfort, but the electric field direction changes causing liquid crystal molecule orientation change and color shift
Solution Approach 1:
The patent changes the optical parameters of the middle region by introducing a compensation layer with specific refractive index characteristics. This parameter change compensates for the orientation change of liquid crystal molecules caused by bending, thereby reducing color shift while maintaining the curved surface for viewing comfort.
3Shape
If spacers are compressed due to bending force, then the liquid crystal cell thickness decreases in the middle region, but this causes non-uniform transmittance and degraded display effects
Solution Approach 1:
The patent applies preliminary anti-action by introducing a compensation layer in the middle region before the bending-induced compression fully affects the display quality. This compensation layer counteracts the thickness reduction effect, ensuring uniform transmittance across the curved panel while maintaining the desired curved shape.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enhances transmittance and reduces color shift, improving display effects by ensuring consistent image quality across the panel.
Implementation Method 1
a plurality of compensating liquid crystal molecules filling a space between the second substrate and the compensation layer
Implementation Method 2
an orientation of corresponding to liquid crystal molecules also changes, which causes color shift
Data Source
AI summary
The present invention provides a curved liquid crystal display panel and a display device. The curved liquid crystal display panel includes a middle region, an edge region, and has a cross-sectional structure including a first substrate, a second substrate disposed opposite to the first substrate, a liquid crystal layer disposed between the first substrate and the second substrate, a compensation layer disposed on a side of the second substrate in the middle region away from the liquid crystal layer, and compensating liquid crystal molecules filling a space between the second substrate and the compensation layer. A difference between a middle thickness of the middle region of the curved liquid crystal display panel and an edge thickness of the edge region of the curved liquid crystal display panel is less than or equal to a preset value. The present invention can improve transmittance and reduce color shift, thereby improving display effects.