Staggered Electrode LCD Panel for Uniform Light Transmittance
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Solution Overview
Problem
Horizontal electric field type liquid crystal display devices suffer from uneven electric field distribution in the liquid crystal layer, leading to local obscurity and low transmittance due to tilted liquid crystal molecules.
Innovation Solution
The addition of second pixel electrodes and second common electrodes on the color filter substrate, staggered and symmetrically arranged relative to the first pixel electrodes and common electrodes, creates horizontal electric fields that align tilted liquid crystal molecules, increasing light transmittance and eliminating obscurity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If horizontal electric field type liquid crystal display device is used, then wide viewing angle is achieved without additional optical compensation film, but electric field distribution in the liquid crystal layer becomes uneven causing local obscurity and low transmittance
Solution Approach 1:
The invention divides the electrode structure into multiple segments: first common electrode and first pixel electrodes on the array substrate, and second common electrodes and second pixel electrodes on the color filter substrate. This segmentation creates multiple sets of staggered electrodes that generate overlapping horizontal electric fields, ensuring uniform field distribution across the liquid crystal layer while maintaining wide viewing angle characteristics
Solution Approach 2:
The invention introduces electrodes on both substrates (array substrate and color filter substrate) rather than only on one substrate. This adds a dimensional aspect to the electrode arrangement, creating staggered horizontal electric fields from both sides that uniformly align liquid crystal molecules throughout the layer, eliminating local obscurity while preserving wide viewing angle
2Adaptability or versatility
If horizontal electric field type liquid crystal display device is used, then wide viewing angle is achieved, but tilted liquid crystal molecules at local areas cause field uncovered and low transmittance
Solution Approach 1:
The staggered arrangement of first and second common electrodes with first and second pixel electrodes creates equipotential surfaces that ensure uniform electric field distribution across the liquid crystal layer. This equipotential design prevents localized field uncovered areas, ensuring consistent transmittance and reliable performance throughout the display panel while maintaining wide viewing angle
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 configuration enhances light transmittance at obscure positions by horizontally aligning liquid crystal molecules, thereby improving the overall performance of the liquid crystal display panel.
Implementation Method 1
horizontal electric fields are formed between the first common electrodes and the first pixel electrodes
Implementation Method 2
the tilted liquid crystal molecules at obscure position tends to be horizontally aligned
Data Source
AI summary
The present invention discloses a liquid crystal display panel and a display. The display panel comprises a first substrate and a second substrate opposed to each other, and a liquid crystal layer located between the first substrate and the second substrate. A first common electrode and an insulating layer are sequentially provided on the side of the first substrate toward the second substrate. Multiple first pixel electrodes are provided on the insulating layer. Multiple second common electrodes and multiple second pixel electrodes are provided on the side of the second substrate toward the first substrate. The second common electrodes and the second pixel electrodes are provided at intervals. In present invention, the tilted liquid crystal molecules at obscure position tends to be horizontally aligned, which increases the light transmittance at the obscure position and eliminates the obscure in the liquid crystal display panel and display.