Light Emitting Display Gate Driver Integration for Compact Panels
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Solution Overview
Problem
The increasing resolution of light emitting display panels necessitates a reduction in the area occupied by signal lines and transistors in the gate driver, which is challenging due to limited space in the non-display area, and existing solutions do not effectively address this issue.
Innovation Solution
The gate driver stages are integrated into the display area, with buffers and shift registers positioned in alternating horizontal lines to optimize signal line arrangement, reducing the need for a non-display area and minimizing signal line density.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the resolution of the light emitting display panel is increased, then the display quality is improved, but the area available for signal lines and transistors is reduced
Solution Approach 1:
The gate driver transistors are moved from the non-display area (2D plane outside display region) to the display area (2D plane within display region), effectively utilizing the display area for dual purposes: both pixel display and gate driver functionality. This spatial reorganization allows high resolution display while accommodating all necessary signal lines and transistors within the display boundaries.
Solution Approach 2:
The invention merges the gate driver functionality with the display area by integrating transistors and signal lines into the pixel structure. The gate driver transistors are positioned to share space with pixel elements, combining what were previously separate functional areas into a unified structure that achieves both high resolution and complete gate driver functionality.
2Area of stationary object
If all gate driver transistors are provided in the display area, then the non-display area is reduced, but the arrangement of signal lines becomes more complex
Solution Approach 1:
The gate driver is divided into multiple stages, with each stage containing a limited number of transistors (e.g., 2-4 transistors per stage). This segmentation allows the gate driver functionality to be distributed across the display area in a structured manner, making signal line routing more manageable while still achieving the goal of eliminating the need for a separate non-display area.
Solution Approach 2:
Signal lines are routed through the display area in a structured pattern that utilizes the vertical and horizontal dimensions of the pixel array. By organizing signal lines to pass through specific regions of the display area in a systematic manner, the complexity of routing is reduced despite the integration of all gate driver components within the display boundaries.
Data Source
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AI summary
A light emitting display apparatus includes a gate driver including stages provided in a substrate and a plurality of gate lines connected to the stages.