Display Panel Dark Line Width Optimization
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Solution Overview
Problem
Conventional LCD display panels face challenges in achieving optimal transmittance and liquid crystal molecule arrangement, particularly in green pixel units, due to sensitivity issues with green light and poor convergence of liquid crystal molecules.
Innovation Solution
The display panel design features varying widths of dark lines corresponding to different pixel units, with the green pixel unit having the smallest dark line width compared to blue and red pixel units, and specific electrode structures to control the convergence of liquid crystal molecules, optimizing transmittance and arrangement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the dark line width is reduced for green pixel units to increase transmittance, then the transmittance of green pixel units is improved, but the liquid crystal molecule convergence may be compromised
Solution Approach 1:
The patent applies different dark line widths to different pixel units based on their specific requirements. Green pixel units have narrower dark lines to maximize transmittance since human eyes are more sensitive to green light, while red and blue pixel units have wider dark lines to ensure proper liquid crystal molecule convergence. This localized differentiation resolves the contradiction by optimizing each pixel type according to its unique optical and molecular requirements.
2Reliability
If the dark line width is increased for green pixel units to improve liquid crystal molecule arrangement, then the convergence is improved, but the transmittance decreases
Solution Approach 1:
The patent differentiates dark line widths across pixel units, assigning narrower lines to green pixels where transmittance is critical, and wider lines to red and blue pixels where molecule convergence is more sensitive. This localized optimization allows each pixel type to achieve its optimal performance without compromising the other.
3Ease of manufacture
If uniform dark line widths are used for all pixel units, then the manufacturing process is simplified, but the display quality cannot be optimized for different pixel types
Solution Approach 1:
The patent implements different dark line widths for different pixel units (narrower for green, wider for red and blue) to optimize display quality. While this increases fabrication complexity slightly, it enables precise control over optical performance and liquid crystal behavior in each pixel type, achieving superior overall display quality that justifies the additional manufacturing precision requirements.
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 the transmittance of green pixel units and prevents poor liquid crystal molecule arrangement, improving overall display quality by adjusting dark line widths and electrode lengths to align with user sensitivity and convergence needs.
Implementation Method 1
voltage is applied onto the electrodes to control the tilt of liquid crystal molecules. Thus, it is possible to control light from a backlight module disposed below the LCD panel to pass or not pass through the liquid crystal layer
Implementation Method 2
the first dark line and the second dark line respectively corresponding to the first trunk electrode of the first subpixel unit and the second trunk electrode of the second subpixel unit are generated when a voltage is applied to the subpixel electrodes
Data Source
AI summary
A display panel is disclosed, which comprises: a first substrate with plural pixel units formed thereon, wherein the pixel units at least comprise a first subpixel unit being a blue pixel unit and a second subpixel unit being a green pixel unit, wherein the first subpixel unit comprises a first subpixel electrode comprising a first trunk electrode, and the second subpixel unit comprises a second subpixel electrode comprising a second trunk electrode; and a second substrate opposite to the first substrate. When light passes through the display panel, a width of a first dark line corresponding to the first trunk electrode is larger than that of a second dark line corresponding to the second trunk electrode.