Segmented Gate Driving Circuit for Narrow-Bezel Display Scanning
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Solution Overview
Problem
Current gate driving circuits for small-sized display panels, which integrate gate drivers on an array substrate, are limited in their ability to reduce border width and meet diverse scanning needs, as they can only scan row by row, necessitating a new approach to control gate lines effectively.
Innovation Solution
A novel gate driving circuit that utilizes area and row control signals to manage gate lines, allowing for the partitioning of gate lines and independent control of each area, reducing border width and improving yield by integrating the gate driving circuit into a driver IC rather than the array substrate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If gate drivers are integrated on array substrate (GOA model), then manufacturing cost is reduced and border appearance is improved, but border width cannot be further reduced and scanning diversity is limited
Solution Approach 1:
The gate driving circuit is segmented into multiple independent control modules: area gating control module that divides the display into multiple areas, and gate line gating control module that independently controls gate lines within each area. This segmentation allows selective activation of different regions, enabling narrower borders by precisely controlling which areas are active at any given time.
2Ease of manufacture
If gate drivers are integrated on array substrate (GOA model), then manufacturing cost is reduced, but scanning diversity and adaptability are limited to row-by-row scanning only
Solution Approach 1:
The gate driving circuit implements dynamic scanning capabilities through multiple control modules that can independently activate different areas and gate lines. The area gating control module and gate line gating control module work together to enable flexible scanning patterns including but not limited to row-by-row scanning, allowing the system to adapt to different display requirements and content types.
3Length of moving object
If gate lines are controlled by area and row control signals with partitioning, then border width is reduced and scanning flexibility is improved, but device complexity increases
Solution Approach 1:
The gate driving circuit is divided into distinct functional modules: area gating control module for managing display areas, gate line gating control module for controlling individual gate lines, and gate driving signal output module for signal generation. This modular segmentation manages complexity by organizing functions into separate units that can be independently designed and controlled, while achieving narrower borders through precise area and gate line management.
4Reliability
If gate driving circuit is integrated into driver IC rather than array substrate, then manufacturing yield is improved, but integration complexity increases
Solution Approach 1:
The gate driving circuit is merged with the driver IC, combining the gate driver functionality with the existing driver infrastructure. This integration improves manufacturing yield by reducing the number of separate components and interconnections, while the internal modular structure (area gating control, gate line gating control, and signal output modules) manages the integration complexity through organized functional blocks.
Data Source
AI summary
Embodiments of the invention disclose a gate driving circuit and a corresponding display device. The gate driving circuit comprises: an area gating control module for gating a corresponding area in a circuit to be driven according to the received area control signal, a gate line gating control module gating a corresponding gate line in a gated area of the circuit to be driven, and a gate driving signal output module, and of which an output terminal is connected to a corresponding gate line, wherein if the logic value represented by the received gate line gating signal is 1, the gate driving signal output module outputs a driving signal for turning on the gate line, and otherwise, outputs a driving signal for turning off the gate line.