Array Substrate Zigzag Data Lines for LCD Viewing Angle
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Solution Overview
Problem
Current liquid crystal display panels face challenges in achieving higher display resolutions due to spatial limitations in manufacturing, and they experience luminance decreases at sub-pixel boundaries, affecting viewing angle and white balance.
Innovation Solution
The array substrate design includes a unit pixel group with sub-pixel rows having different opening areas and zigzag-shaped data and gate lines, with the data lines positioned in a different layer than the drain electrodes, and color filter patterns optimized to improve luminance and white balance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the gap between data line and drain electrode is reduced to increase display resolution, then display resolution is improved, but manufacturing precision becomes more difficult to achieve
Solution Approach 1:
The patent moves the data line from the same plane as the drain electrode to a different layer (upper or lower), transforming a 2D spacing problem into a 3D layered structure. This allows the data line and drain electrode to be electrically isolated while maintaining minimal horizontal gap, achieving high display resolution without compromising manufacturing precision.
Solution Approach 2:
The patent segments the signal transmission path by separating the data line and drain electrode into different layers, with the semiconductor pattern acting as an intermediate connection layer. This segmentation allows independent optimization of each component's position and reduces the difficulty of precise gap control.
2Adaptability or versatility
If multiple domains are added to pixel electrodes to widen viewing angle, then viewing angle is improved, but luminance decreases at domain boundaries
Solution Approach 1:
The patent applies different opening areas to pixel electrodes in different sub-pixel rows (first sub-pixel row vs. second sub-pixel row). By locally adjusting the opening area of pixel electrodes, the patent compensates for luminance decreases at domain boundaries while maintaining the multi-domain structure for wide viewing angle.
Solution Approach 2:
The patent changes the opening area parameter of pixel electrodes based on their position in different sub-pixel rows. Pixel electrodes in the first sub-pixel row have different opening areas than those in the second sub-pixel row, optimizing luminance distribution across domains while preserving the viewing angle benefits of multi-domain structures.
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 resolution, reduces luminance decreases at sub-pixel boundaries, and provides a wider viewing angle while improving luminance and white balance in liquid crystal display panels.
Implementation Method 1
Arrangements of liquid crystals in the liquid crystal layer may be adjusted or varied by an electric field generated by the control signals
Data Source
AI summary
An array substrate includes a unit pixel group having first and second sub-pixel rows. The array substrate includes a plurality of gate lines extending along a first direction and adjacent to each other on a base substrate, a plurality of gate electrodes electrically coupled to the gate lines, a plurality of semiconductor patterns overlapping the gate electrodes, a plurality of data lines extending along a second direction and electrically coupled to first portions of the semiconductor patterns, a plurality of drain electrode patterns electrically coupled to second portions of the semiconductor patterns, and a plurality of pixel electrodes electrically coupled to the drain electrodes. The second portion of the semiconductor pattern spaced from the first portion thereof. The gate lines and the data lines are bent. Sub-pixels in the first sub-pixel row have opening areas that are different in size than that of sub-pixels in the second sub-pixel row.