Sub-pixel Electrode Branch Structure for LCD Interference Reduction
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Solution Overview
Problem
In liquid crystal display technology, the electric fields from branch portions of pixel electrodes interfere with those from data and gate lines, leading to abnormal liquid crystal molecule arrangements, reducing transmittance and contrast ratio.
Innovation Solution
The array substrate design includes sub-pixel electrodes with a branch portion group that partially overlaps data and/or gate lines, separated by slits, and a resin layer to minimize electric field interference, allowing better control of liquid crystal molecule arrangement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the pixel electrode has a root portion and branch portion for controlling liquid crystal arrangement, then the liquid crystal orientation control is improved, but the electric field from branch portions interferes with data lines and gate lines causing abnormal liquid crystal arrangement
Solution Approach 1:
The pixel electrode is divided into a root portion and multiple branch portions that are separated from each other. This segmentation allows each branch portion to independently control liquid crystal orientation in different domains while reducing mutual interference between branches and interference with data/gate lines.
Solution Approach 2:
Different portions of the pixel electrode are designed with different structures and positions. The root portion is positioned away from data lines and gate lines, while branch portions are strategically arranged to control specific liquid crystal domains. This local differentiation optimizes both orientation control and interference reduction.
2Stability of the object's composition
If the branch portion is used for controlling liquid crystal molecule arrangement, then the orientation stability is improved, but the transmittance and contrast ratio are reduced due to electric field interference
Solution Approach 1:
The pixel electrode is segmented into a root portion and multiple separated branch portions. This segmentation enables precise control of liquid crystal orientation in different domains while minimizing electric field interference that would otherwise reduce transmittance and contrast ratio.
Solution Approach 2:
The branch portions extend in different directions from the root portion, creating a multi-dimensional structure. This spatial arrangement allows effective control of liquid crystal molecules in various orientations while reducing overlap and interference with data lines and gate lines, thereby maintaining higher transmittance and contrast ratio.
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 improves transmittance and contrast ratio, enhancing display quality by reducing electric field interference and stabilizing liquid crystal orientations.
Implementation Method 1
the electric field of the branch portion and the electric field of the data lines or the gate lines often interfere with each other to result in an abnormal arrangement of the liquid crystal molecules
Data Source
AI summary
The present invention discloses an array substrate and a display panel. The array substrate comprises a plurality of data lines and a plurality of gate lines which are provided to intersect each other. The data lines are provided in parallel and the gate lines are provided in parallel, and the data lines and the gate lines vertically intersect to divide the array substrate into a plurality of pixel units each having a pixel electrode provided therein. The pixel electrode comprises a sub-pixel electrode comprising a root portion and a branch portion group connected to the root portion, the branch portion group consisting of a plurality of branch portions, adjacent ones of which are separated by slits. The branch portion group partially overlaps the data lines and/or the gate lines.