Dual Gate Driver Display Panel Redundancy
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Solution Overview
Problem
Existing display panels face issues with abnormal operation of gate driving circuits, which can impair image quality and shorten the device's lifespan, especially due to disconnections in wiring lines caused by impacts or excessive bending.
Innovation Solution
The display panel is designed with gate driving circuits on both sides, allowing for single-feeding of gate pulses to the gate lines when one circuit operates abnormally, ensuring continuous operation and preventing image defects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If gate driving circuits are disposed on both sides of the display panel for redundancy, then reliability is improved, but device complexity increases
Solution Approach 1:
The gate driving circuit is divided into two separate gate driving circuits disposed at opposite sides of the display panel. Each gate driving circuit independently drives gate lines, creating segmented driving paths that provide redundancy and improve reliability without requiring a completely new system architecture.
Solution Approach 2:
Different regions of the display panel are assigned to different gate driving circuits. The first gate driving circuit drives gate lines in a first region while the second gate driving circuit drives gate lines in a second region, allowing localized driving functionality that maintains overall system reliability even when one circuit fails.
2Productivity
If double-feeding gate pulses to gate lines is used for normal operation, then productivity is improved, but energy consumption increases
Solution Approach 1:
The gate driving system dynamically adjusts its operating mode based on real-time conditions. During normal operation, both gate driving circuits operate simultaneously in double-feeding mode to maximize productivity. When a circuit fails or during low-activity periods, the system automatically switches to single-feeding mode to reduce energy consumption, providing adaptive performance optimization.
Data Source
AI summary
A display device can include at least one subpixel connected to a data line and a gate line; a first gate driving circuit connected to a first end of the gate line; a second gate driving circuit connected to a second end of the gate line, the second end being opposite to the first end. Also, the first and second gate driving circuits are configured to double feed gate pulses to the first and second ends of the gate line based on a first condition being satisfied, and single feed the gate pulse to only one of the first and second ends of the gate line based on a second condition being satisfied.