Liquid Crystal Display with Dual Data Lines and Subpixel Segmentation
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Solution Overview
Problem
Liquid crystal displays face challenges with high manufacturing costs due to the proportion of integrated circuit chips and reduced aperture ratio caused by increasing wire counts, such as gate lines and data lines, which affect image quality and efficiency.
Innovation Solution
The design incorporates first and second substrates with a liquid crystal layer, gate lines, data lines, switching elements, and pixel electrodes, where data voltages of opposite polarities are applied to improve alignment and polarization, enhancing image display and reducing manufacturing costs by optimizing the layout and structure of the liquid crystal display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the number of wires (gate lines and data lines) is increased to improve display functionality, then the display capability is enhanced, but the aperture ratio is remarkably reduced
Solution Approach 1:
The patent divides the display into subpixels (red, green, blue) with separate switching elements and data lines for each color. This segmentation allows each subpixel to be independently controlled while using fewer total wires compared to a conventional full-color pixel structure, thereby maintaining aperture ratio while enhancing display capability.
Solution Approach 2:
The patent employs time-division multiplexing where the same physical pixel electrode is sequentially accessed by different data lines in different time periods. This temporal dimensionality allows multiple data lines to serve the same spatial location at different times, reducing the total number of wires needed while maintaining full display functionality.
2Adaptability or versatility
If integrated circuit chips are used as drivers mounted directly on the display panel, then the display functionality is enhanced, but the manufacturing cost increases
Solution Approach 1:
The patent extracts the driver circuit functionality from separate integrated circuit chips and integrates it directly into the display panel structure using thin-film transistors formed on the same substrate. This integration eliminates the need for expensive external driver chips while maintaining full display functionality, thereby reducing manufacturing cost.
Solution Approach 2:
The patent merges the driver circuit components (gate lines, data lines, switching elements) with the display pixel structure into a single integrated panel. The thin-film transistor switching elements are formed on the same substrate as the pixel electrodes, combining what were previously separate components into one unified structure, thereby reducing manufacturing cost while enhancing display functionality.
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 improves the response speed and contrast ratio of the liquid crystal display, prevents image quality deterioration, and increases the aperture ratio, leading to better viewing angles and reduced manufacturing costs.
Implementation Method 1
the liquid crystal layer has positive dielectric anisotropy
Implementation Method 2
An electric field is generated in the liquid crystal layer by applying a voltage to the electric field generating electrodes to determine the alignment of liquid crystal molecules of the liquid crystal layer and control the polarization of incident light
Implementation Method 3
control the polarization of incident light
Data Source
AI summary
A liquid crystal display according to an embodiment of the present invention includes: first and second substrates opposed to each other; a liquid crystal layer including liquid crystal molecules interposed between the first and second substrates; a gate line formed on the first substrate and transmitting a gate signal; first and second data lines formed on the first substrate and transmitting first and second data voltages having different polarities; a first switching element connected to the gate line and the first data line; a second switching element connected to the gate line and the second data line; and first and second pixel electrodes that are connected to the first and second switching elements, respectively, and separated from each other, wherein the liquid crystal layer has positive dielectric anisotropy.