LCD Panel Scan Line Reduction for Narrow Bezel Design
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Solution Overview
Problem
Typical LCD panels face challenges in achieving high resolution, high brightness, and narrow bezel designs due to the increased number of scan lines required, which affects the display quality and bezel size.
Innovation Solution
The implementation of an LCD panel with data lines and scan lines where (2n+1)th and (2n+2)th row pixel units connect with the same scan lines, and (2n+1)th and (2n+2)th column pixel units connect with first and second data lines, respectively, along with a data-line driving circuit comprising positive and negative polarity signal sources and switches, allows for inverted signal polarities and reduced scan line quantity, enabling narrow bezel or bezel-free designs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If one scan line controls one row of pixels to achieve high resolution, then display resolution is improved, but bezel size increases
Solution Approach 1:
The invention segments the pixel rows into two groups: odd-numbered rows (2n+1) and even-numbered rows (2n+2). Each group is controlled by different data line configurations, allowing the same scan line to efficiently control multiple pixel rows while maintaining high resolution. This segmentation reduces the total number of scan lines needed, thereby reducing bezel size.
Solution Approach 2:
The invention merges the control function of multiple scan lines into a single scan line by using alternating data line connections. The (2n+1)th and (2n+2)th row pixel units both connect to the same scan line, combining their control functions. This merging reduces the number of scan lines required, which directly reduces the bezel size while maintaining high display resolution.
2Measurement precision
If data lines are disposed on different sides of pixel units with inverted polarities, then image quality is improved, but device complexity increases
Solution Approach 1:
The invention uses inverted polarity data signals for alternating pixel columns. Odd-numbered columns ((2n+1)th column) receive data with one polarity through first data lines, while even-numbered columns ((2n+2)th column) receive data with inverted polarity through second data lines. This inversion technique improves image quality by reducing display defects while the systematic switching mechanism manages the complexity through organized control.
Solution Approach 2:
The invention implements dynamic switching of data line connections through a data-line driving circuit with multiple switching levels. The circuit dynamically alternates between first and second data lines for different pixel columns, and between different scan lines for different pixel rows. This dynamic switching enables the inverted polarity configuration to improve image quality while the systematic control manages device complexity through automated switching sequences.
Data Source
AI summary
The present invention provides a liquid crystal display panel including data lines that includes first data lines and second data lines, (2n+1)th row pixel units and (2n+2)th row pixel units connect with a same one of the scan lines. (2n+1)th column pixel units of the (2n+1)th row connect with the first data line, (2n+2)th column pixel units of the (2n+1)th row connect with the second data line, (2n+1)th column pixel units of the (2n+2)th row connect with the second data line, (2n+2)th column pixel units of the (2n+2)th row connect with the first data line.