Pixel Electrode Structure for High Transmittance Display Panels
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Solution Overview
Problem
Liquid crystal display devices face challenges in achieving high transmittance while maintaining low manufacturing costs, as modifying the liquid crystal layer ingredients often requires adjustments to other optical layers, increasing manufacturing costs.
Innovation Solution
The design of a display panel with a specific pixel electrode structure, including a trunk portion and branch portions, and the use of polarizers aligned with the data and scan lines, allows for high transmittance without the need for costly adjustments to other optical layers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the ingredient of the liquid crystal layer is adjusted to increase transmittance, then the brightness of the display device is improved, but the manufacturing cost is greatly increased due to necessary adjustments to other optical layers
Solution Approach 1:
The pixel electrode is divided into multiple independent conductive patterns (first conductive pattern, second conductive pattern, third conductive pattern, fourth conductive pattern) with different orientations. Each pattern segment controls liquid crystal molecules in specific regions, allowing independent optimization of light transmission in different directions without requiring global adjustment of optical layers
Solution Approach 2:
The pixel electrode structure serves multiple functions simultaneously: it provides electrical connection, controls liquid crystal orientation in multiple directions, and enables high transmittance without requiring modifications to other optical layers. The same electrode structure achieves both the liquid crystal control function and the optical optimization function
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 transmittance while reducing manufacturing costs by optimizing the alignment of liquid crystal molecules and polarizers, improving the overall brightness and efficiency of the display panel.
Implementation Method 1
by rotating the liquid crystal molecules in the liquid crystal display panel, the light emitted by the backlight module is controlled to pass or not pass through the liquid crystal display panel
Implementation Method 2
The first polarizer is located on the first substrate. The second polarizer is located on the second substrate
Data Source
AI summary
A display panel includes a first substrate, a second substrate, a liquid crystal layer, a pixel electrode, a common electrode, a first polarizer and a second polarizer. The pixel electrode includes a trunk portion, first to fourth branch portions, and first to fourth strip portions. The trunk portion extends along a first direction. The first and second branch portions are connected to a first end of the trunk portion. The third and fourth branch portions are connected to a second end of the trunk portion. The first strip portions are connected to the first and second branch portions. The second strip portions are connected to the third and fourth branch portions. The third strip portions are connected to the first and third branch portions and the trunk portion. The fourth strip portions are connected to the second and fourth branch portions and the trunk portion.