Liquid Crystal Display Panel Local Quality Light Scattering
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Solution Overview
Problem
The existing liquid crystal display panels suffer from decreased display contrast due to coupling voltages at overlap regions between conductors and common electrodes, which irregularly arrange liquid crystal molecules and scatter light, affecting the display effect.
Innovation Solution
The liquid crystal display panel design includes a polymer liquid crystal layer with specific orientations of liquid crystal molecules and photopolymerisable monomer molecules in display regions and conductor zones, allowing light transmission through conductor areas and scattering in display regions, along with ultraviolet ray blocking layers and hollowed-out common electrode structures to minimize light scattering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conductors and common electrode overlap at overlap regions to enable electrical connection, then electrical functionality is achieved, but coupling voltages are generated that irregularly arrange liquid crystal molecules and scatter light, decreasing display contrast
Solution Approach 1:
The patent applies different properties to different regions of the liquid crystal layer. In display regions, the liquid crystal layer maintains its light-scattering properties for image display, while in conductor regions (where conductors and common electrode overlap), the liquid crystal layer is configured to have light-transmitting properties. This local differentiation eliminates light scattering from conductor regions while preserving the light scattering function in display regions, thereby improving display contrast without compromising electrical functionality.
2Ease of operation
If liquid crystal molecules are irregularly arranged in display regions to scatter light for displaying, then displaying function is achieved, but display contrast decreases due to light scattering from overlap regions
Solution Approach 1:
The patent implements spatially differentiated optical properties within the liquid crystal layer. Display regions maintain irregular liquid crystal molecule arrangement for light scattering and image display, while conductor regions are configured with regular liquid crystal molecule arrangement for light transmission. This local quality differentiation allows the display function to be maintained while eliminating the harmful light scattering from conductor regions that degrades display contrast.
3Stability of the object's composition
If polymer networks are present in conductor zones to stabilize the liquid crystal layer, then structural stability is achieved, but light transmission is blocked reducing overall light efficiency
Solution Approach 1:
The patent applies polymer networks selectively only in display regions where they provide structural stabilization to the liquid crystal layer, while deliberately excluding polymer networks from conductor regions. This localized application maintains the necessary structural stability in display areas while allowing maximum light transmission through conductor regions, thereby reducing energy loss and improving overall light efficiency without compromising liquid crystal layer stability.
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
This design enhances display contrast and effectiveness by ensuring most input light is used for displaying, reducing light scattering from conductor zones, and improving the overall display effect.
Implementation Method 1
portions of the polymer liquid crystal layer corresponding to at least zones where the plurality of conductors are located comprise: liquid crystal molecules oriented parallel to the input light
Implementation Method 2
liquid crystal molecules of the polymer liquid crystal layer corresponding to the display regions are configured to be irregularly arranged when corresponding voltages are applied to the pixel electrodes and the common electrode, respectively, to scatter an input light emitted from an edge-lighting type light source
Implementation Method 3
portions of the polymer liquid crystal layer corresponding to at least zones where the plurality of conductors are located comprise: liquid crystal molecules regularly arranged and oriented, and photopolymerisable monomer molecules
Data Source
AI summary
Embodiments of the present disclosure disclose a liquid crystal display panel and a liquid crystal display apparatus having the same. The liquid crystal display panel includes a first substrate and a second substrate, the first substrate serving as an array substrate; and a polymer liquid crystal layer, the first substrate includes: a plurality of pixel electrodes in display regions, and a plurality of conductors in gaps between adjacent ones of the plurality of pixel electrodes, and the second substrate includes a common electrode; and in areas corresponding to the gaps between adjacent ones of the plurality of pixel electrodes, portions of the polymer liquid crystal layer corresponding to at least zones where the plurality of conductors are located are configured to transmit the input light from the edge-lighting type light source.