Embedded Gate Driver for OLED Panel Non-Display Area Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In organic light emitting display devices, the separate provision of gate and emission drivers increases the non-display area size and complexity, leading to higher failure rates and limited miniaturization potential due to the need for additional circuitry and clock signals.
Innovation Solution
An organic light emitting display panel with an embedded gate driver that generates both gate and emission control signals, integrated into the non-display area, simplifying the circuit and reducing the non-display area size by eliminating the need for separate emission drivers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate gate driver and emission driver are provided, then gate signals and emission control signals can be generated independently, but the non-display area size increases and device complexity increases
Solution Approach 1:
The patent combines the gate driver and emission driver into a single integrated driver unit. The driver includes a gate signal output unit for generating gate signals and an emission control signal output unit for generating emission control signals, both within the same driver structure. This merging eliminates the need for separate driver circuits, reduces the non-display area size, and simplifies the overall device architecture while maintaining independent signal generation capabilities.
Solution Approach 2:
The integrated driver performs multiple functions: it generates gate signals for row selection, generates emission control signals for controlling organic light emitting diode emission, and manages timing coordination between different signal outputs. By making the driver universal and multi-functional, the patent eliminates the need for dedicated separate drivers, thereby reducing the non-display area while maintaining full functionality.
2Adaptability or versatility
If separate gate driver and emission driver are provided, then each driver can be optimized for its specific function, but the circuit becomes more complex and failure rate increases
Solution Approach 1:
The patent merges the gate driver and emission driver into a single integrated driver unit with distinct functional modules. The gate signal output unit and emission control signal output unit are combined within the same driver structure, sharing common timing control mechanisms and signal distribution pathways. This integration reduces the number of separate circuits, decreases overall complexity, and lowers the failure rate by reducing the number of independent components that could fail.
3Speed
If separate gate driver and emission driver are provided, then gate clocks and emission clocks can be transmitted independently, but the circuit becomes more complex and requires more clock signal lines
Solution Approach 1:
The integrated driver combines the gate clock input and emission clock input into a unified timing control structure. The driver receives clock signals and internally coordinates the timing for both gate signal generation and emission control signal generation. This merging of clock management functions reduces the number of external clock signal lines required and simplifies the clock distribution circuitry while maintaining independent timing control for different signal outputs.
Data Source
AI summary
Disclosed are an organic light emitting display panel and an organic light emitting display device including the same, in which a gate driver for generating all of a gate signal and an emission control signal is embedded.