LCD Panel Electrode Segmentation for Light Transmittance
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Solution Overview
Problem
Conventional liquid crystal display (LCD) panels face challenges in achieving high light transmittance, which is crucial for improved display quality, as the existing technologies do not effectively control dark lines in sub-pixel units to enhance light transmission.
Innovation Solution
The LCD panel design incorporates electrodes with specific trunk electrode configurations and dark line patterns, where the dark lines in adjacent sub-pixel units have different spin directions, allowing for improved convergence of liquid crystal molecules and enhanced light transmittance by adjusting the patterns and widths of these electrodes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If conventional LCD panel structures are used, then manufacturing is simple, but light transmittance is insufficient
Solution Approach 1:
The electrode structure is segmented into multiple trunk electrodes (first trunk electrode, second trunk electrode, third trunk electrode, fourth trunk electrode) arranged in a specific pattern. This segmentation allows each electrode to contribute to forming dark lines with controlled spin directions, thereby improving light transmittance through optimized molecular convergence while maintaining manageable manufacturing complexity through modular design
Solution Approach 2:
The patent introduces asymmetric dark line patterns with different spin directions in adjacent sub-pixel units. The first and second dark lines have different spin directions, as do the third and fourth dark lines. This asymmetry in pattern design optimizes liquid crystal molecule convergence from multiple directions, significantly improving light transmittance while the asymmetric pattern itself becomes the key feature rather than adding complex manufacturing steps
2Illumination intensity
If dark lines with uniform spin direction are used, then manufacturing is easy, but light transmittance is limited
Solution Approach 1:
Different regions of the display panel are assigned different dark line spin directions based on their local sub-pixel unit position. Adjacent sub-pixel units have dark lines with alternating spin directions (first/second dark lines in one unit, third/fourth dark lines in adjacent unit). This local differentiation optimizes light transmittance for each region while the overall pattern follows a predictable alternating scheme that simplifies manufacturing control
Solution Approach 2:
The dark line patterns with specific spin directions are pre-designed and pre-formed during the manufacturing process. The electrode configurations are predetermined to automatically generate the required dark line patterns with alternating spin directions when voltage is applied. This preliminary structuring eliminates the need for complex real-time control during operation, making manufacturing precise yet straightforward
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 results in better light transmittance and display quality by optimizing the convergence of liquid crystal molecules, with the dark lines in adjacent sub-pixel units having distinct spin directions, leading to improved light transmission characteristics.
Implementation Method 1
a liquid crystal layer is disposed between two electrodes, and voltage is applied onto the electrodes to control the tilt of liquid crystal molecules
Implementation Method 2
dark lines corresponding to pixel units thereof has different spin directions to improve light transmittance thereof
Data Source
AI summary
A display panel is disclosed, comprising: a first electrode comprising a first trunk electrode and a second trunk electrode and a second electrode comprising a third trunk electrode and a fourth trunk electrode formed thereon, wherein when light passes through the display panel, the first and second trunk electrode respectively correspond to first and second dark lines crossing to each other to form a first cross site, the third and fourth trunk electrode respectively correspond to third and fourth dark lines crossing to each other to form a second cross site, the first and third dark lines respectively comprise first and second arc portions at the first and second cross sites near to a first scan line, and a first concave side of the first arc portion and the second concave side of the second arc portion face to sides opposite to each other.