Display Data Line Segmentation for Aperture Ratio and Power
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Solution Overview
Problem
Conventional liquid crystal display devices face challenges in achieving a higher aperture ratio and lower power consumption, as existing methods like column inversion and dot inversion either compromise on aperture ratio or power efficiency.
Innovation Solution
The display device incorporates a column inversion method with common lines formed from source/drain metal, allowing for a wider display area and increased aperture ratio, while also reducing power consumption by optimizing the connection and driving of pixels through data and gate lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If column inversion method is used, then power consumption is reduced, but aperture ratio becomes low
Solution Approach 1:
The invention segments the data line configuration by row type (odd-numbered vs even-numbered rows), applying different connection patterns to each. Odd-numbered rows use data lines connecting pixels in columns k and k+1, while even-numbered rows use data lines connecting pixels in columns k-1 and k+2. This segmentation allows optimization of both power consumption and aperture ratio through tailored configurations.
Solution Approach 2:
The invention applies different data line connection configurations to different regions (odd-numbered rows vs even-numbered rows) of the display panel. Each region has locally optimized quality characteristics: odd rows optimize for one pattern while even rows optimize for another, thereby achieving overall improvement in both power consumption and aperture ratio.
2Area of moving object
If dot inversion method is used, then aperture ratio is maintained, but power consumption increases
Solution Approach 1:
The invention inverts the conventional approach by applying column inversion methodology but with a unique data line configuration pattern. Instead of following traditional dot inversion to maintain aperture ratio at the cost of higher power consumption, the patent uses an inverted row-based configuration where even-numbered rows have data lines shifted by two columns, achieving both goals simultaneously.
3Area of moving object
If data lines are configured for every pixel column, then aperture ratio increases, but device complexity increases
Solution Approach 1:
The invention makes data lines multi-functional by having each data line serve multiple pixels across different rows and columns. A single data line connects to pixels in both odd-numbered and even-numbered rows, and to multiple columns through the shifted configuration. This universality reduces the total number of data lines needed while maintaining high aperture ratio.
Solution Approach 2:
The invention resolves the complexity issue by introducing a row-based dimensional differentiation. Instead of uniform data line configuration across all pixels, the patent adds a row-index dimension to the configuration logic, where the data line connection pattern changes based on whether the row number is odd or even. This dimensional approach simplifies the overall system while achieving high aperture ratio.
Data Source
AI summary
A display device includes a plurality of pixels arranged in a column direction and in a row direction, as well as a data line connected to a pixel of a k-th column (where ‘k’ is a natural number) and a (k+1)-th column in an odd-numbered row of the pixels, and connected to a pixel of a (k−1)-th column and a (k+2)-th column in an even-numbered row of the pixels. A data driving part is configured to apply a data signal to the data lines.