Display Panel Gate Driving Structure for Aperture Ratio
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Solution Overview
Problem
Display panels with larger areas or higher resolutions face reduced aperture ratios and increased charging and compensation times, leading to insufficient image quality and reduced efficiency in gate driving.
Innovation Solution
A display panel design with a gate driving structure that includes independent scanning signal transferring lines for odd and even-numbered subpixels, allowing for separate and independent gate driving, which increases the aperture ratio without expanding the non-active bezel area and reduces charging and compensation times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a large number of transistors and signal lines are disposed in the display panel to achieve higher resolution or larger area, then the display resolution or area is improved, but the aperture ratio is reduced
Solution Approach 1:
The gate lines are divided into multiple segments (first gate line, second gate line, third gate line) that are independently controllable. This segmentation allows different regions of the display panel to be driven independently, reducing the need for extensive signal lines across the entire panel and thereby improving the aperture ratio while maintaining high resolution capability.
2Area of stationary object
If more transistors and signal lines are added to increase display area or resolution, then the display area or resolution is improved, but the charging time and compensation time increase
Solution Approach 1:
The display panel is divided into multiple independently controllable regions via segmented gate lines. This allows different regions to be charged and compensated simultaneously or in optimized sequences, reducing the total charging time and compensation time required for large-area or high-resolution displays.
Solution Approach 2:
The segmented gate lines enable periodic scanning of different display regions. By sequentially activating different gate line segments in a periodic manner, the system can efficiently manage charging and compensation operations across large areas without requiring all pixels to be charged and compensated simultaneously, thereby reducing overall time requirements.
3Productivity
If a gate driver with GIP structure is used to improve gate driving capability, then the gate driving efficiency is improved, but the non-active area (bezel area) increases
Solution Approach 1:
Instead of expanding the gate driver horizontally in the non-active area (which would increase bezel size), the gate driver functionality is distributed vertically across multiple gate line segments. This dimensional redistribution allows the gate driver to be integrated more efficiently within the existing panel structure, improving gate driving capability without significantly increasing the non-active area.
Data Source
AI summary
A display device comprises a display panel in which a plurality of subpixels are disposed, wherein the plurality of subpixels include a first subpixel, a second subpixel, a third subpixel, and a fourth subpixel that are sequentially disposed in a single row or column; a gate driver disposed on the display panel and supplying a scanning signal to the plurality of subpixels; a first island pattern disposed in each area of the first subpixel and the third subpixel; a second island pattern disposed in each area of the second subpixel and the fourth subpixel; a first connection line electrically connecting the first island pattern disposed in the area of the first subpixel and the first island pattern disposed in the area of the third subpixel; and a second connection line electrically connecting second island pattern disposed in the area of the second subpixel and the second island pattern disposed in the area of the fourth subpixel, wherein the first connection line and the second connection line are electrically disconnected from each other, and the gate driver independently drives the first connection line and the second connection line.