LCD Panel Data Line Connection for High Resolution Driving
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Solution Overview
Problem
As display resolution and size increase, existing LCD technologies face challenges in efficiently driving pixels due to increased horizontal rows, leading to capacitive loading issues and potential degradation of liquid crystal characteristics.
Innovation Solution
The display panel employs an inversion driving scheme with a non-alternate and alternate data line connection scheme, where odd-numbered adjacent pixel rows are connected to a single gate line, and data lines are connected based on non-alternate and alternate schemes to prevent horizontal spot lines and maintain liquid crystal characteristics, using a timing controller to generate compensated image data and control gate and data drivers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the number of horizontal rows increases to achieve higher display resolution, then display quality improves, but capacitive loading on drivers increases and pixel charging duration decreases
Solution Approach 1:
The display panel divides pixel rows into odd-numbered rows and even-numbered rows, with each group connected to separate gate lines. This segmentation allows independent driving of different row groups, reducing the capacitive loading on each gate line and enabling sufficient charging duration for pixels in high-resolution displays with increased horizontal rows.
2Ease of manufacture
If conventional data line connection schemes are used in high-resolution displays, then manufacturing simplicity is maintained, but horizontal spot lines appear and liquid crystal characteristics degrade
Solution Approach 1:
The patent employs an asymmetric data line connection scheme where odd-numbered pixel rows and even-numbered pixel rows are connected to data lines in different patterns. Specifically, data lines are selectively connected to either odd or even rows in different sections of the display, creating an asymmetric connection topology that prevents horizontal spot lines while maintaining liquid crystal characteristic stability.
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 approach enhances pixel charging durations, prevents horizontal spot lines, and maintains liquid crystal characteristics, thereby improving display performance and efficiency in high-resolution LCDs.
Implementation Method 1
A liquid crystal display (LCD) apparatus may include a first substrate including a pixel electrode, a second substrate including a common electrode, and a liquid crystal layer disposed between the first and second substrates. Voltages may be applied to the pixel electrode and the common electrode to generate an electric field. Transmittance of light passing through the liquid crystal layer may be controlled according to the electric field
Data Source
Figure 1~2
Figure 3
Figure 4A
AI summary
A display panel includes gate lines, data lines, and pixels. The gate lines extend in a first direction and include first and second gate lines adjacent to each other. The data lines extend in a second direction crossing the first direction and include first to third data lines. Each of the pixels is connected to one of the gate lines and one of the data lines. The first data line is connected to at least a first any one of a second plurality of pixels in a first pixel column of the pixels. The second data line is connected to at least a first any one of a first plurality of pixels in the first pixel column. The third data line is connected to at least a second any one of the first plurality of pixels and at least a second any one of the second plurality of pixels.