Liquid Crystal Display Panel with Segmented Electrodes
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Solution Overview
Problem
Conventional wide viewing angle liquid crystal display panels suffer from light leakage at a dark state and have short penetrability, increasing manufacturing complexity and reducing yield.
Innovation Solution
A liquid crystal display panel design that eliminates the need for bumps or slits by using electrically connected sub-pixel electrodes with gaps, allowing for a fringe field effect that enhances viewing angle and response time without light leakage, thereby simplifying the manufacturing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If bumps or slits are added to the liquid crystal display panel to achieve wide viewing angle, then viewing angle is improved, but manufacturing complexity increases and light leakage occurs at dark state
Solution Approach 1:
The invention extracts and eliminates the complex bump or slit structures from the liquid crystal display panel. Instead of adding these complicated alignment structures, the patent uses a simplified electrode configuration where pixel electrodes extend across data lines with gaps, achieving wide viewing angle without the manufacturing complexity and light leakage problems associated with bumps or slits
Solution Approach 2:
The invention segments the pixel electrode into multiple parts that are electrically connected, with gaps formed where data lines pass through. This segmentation allows the electrode to cross data lines effectively while maintaining electrical connectivity and achieving the desired liquid crystal alignment for wide viewing angle without requiring additional alignment structures
2Adaptability or versatility
If bumps or slits are added to change liquid crystal alignment directions, then viewing angle is improved, but light leakage occurs at dark state
Solution Approach 1:
The invention removes the bump or slit structures that cause light leakage at dark state. By using electrode extensions with gaps instead of physical alignment structures, the patent eliminates the source of light leakage while maintaining the ability to achieve wide viewing angle through electric field control of liquid crystal alignment
Solution Approach 2:
The electrode gap structure serves as an intermediary mechanism that achieves liquid crystal alignment control without the harmful effects of bumps or slits. The gap allows data lines to pass through while the electric field across the gap controls liquid crystal orientation, providing a mediating solution that avoids light leakage
3Ease of manufacture
If electrode extensions with gaps are used instead of bumps or slits, then manufacturing complexity is reduced, but electrical connectivity must be maintained across gaps
Solution Approach 1:
The pixel electrode is segmented into multiple sections that are electrically connected through the gap regions. This segmentation allows the electrode to be manufactured as a continuous structure that naturally bridges gaps, maintaining electrical connectivity while simplifying manufacturing by eliminating the need for separate bump or slit formation processes
Solution Approach 2:
The invention merges the electrode pattern formation with the gap creation process. The electrode extension structure is designed and manufactured as an integrated feature that simultaneously provides electrical connectivity and creates the necessary gaps for data line passage, reducing manufacturing steps and improving reliability
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 improves viewing angle and response time while preventing light leakage and increasing penetrability, thus enhancing the display's performance and yield.
Implementation Method 1
Control circuits and driving circuits are disposed at the periphery of the liquid crystal display panel and can make the transparent electrodes form an electric field. The liquid crystal molecules are twisted under the action of the electric field, and thus the light entering the liquid crystal layer is refracted regularly
Implementation Method 2
The liquid crystal molecules are twisted under the action of the electric field, and thus the light entering the liquid crystal layer is refracted regularly and then displayed on the liquid crystal display panel
Implementation Method 3
A plurality of transparent electrodes arranged in matrix are disposed on one side of the first substrate, which is close to the liquid crystal layer. Optical activity states of the liquid crystal molecules can be changed by changing voltage on the transparent electrodes
Data Source
AI summary
A liquid crystal display panel includes a first and second substrates which are opposite, and further includes scanning lines, data lines, pixel electrodes and switches, intersection of two adjacent scanning lines and data lines forming a pixel region. The pixel electrodes are disposed in pixel regions. Each pixel electrode crosses one data line and includes a first and second sub-pixel electrodes which are electrically connected to each other; the first and second sub-pixel electrodes are arranged on two sides of the data line; there is a gap between the first and second sub-pixel electrodes, and the data line is configured in the gap. A problem that conventional liquid crystal display panel has a complex manufacture process, leaks light at a dark state and has a low penetrability can be solved, thereby improving yield of the products.