Pixel Bias Signal Circuit Using Gate Control Logic
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Solution Overview
Problem
Conventional voltage source or current source circuits for pixel arrays require a separate, complex bias signal generation IC to provide bias signals, increasing circuit costs and complexity.
Innovation Solution
An electronic device with a pixel array, a gate driver, and a bias signal driver that generates bias signals using a first and second logic circuit, eliminating the need for a separate bias signal generation IC by utilizing gate control signals to activate pixel units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate bias signal generation IC is added to provide bias signals to pixel units, then the pixel units can receive the necessary bias signal for threshold voltage compensation, but the circuit complexity and cost increase
Solution Approach 1:
The patent merges the bias signal generation function into the existing gate driver IC by adding logic circuits that generate bias signals from gate control signals. This integration eliminates the need for a separate bias signal generation IC, reducing circuit complexity while maintaining the threshold voltage compensation function through shared hardware resources
Solution Approach 2:
The gate driver IC is enhanced to perform multiple functions: it continues to provide gate control signals while simultaneously generating bias signals through integrated logic circuits. This multi-functionality allows a single IC to replace what would traditionally require separate components, reducing overall circuit complexity
2Ease of operation
If a separate bias signal generation IC is added to provide bias signals to pixel units, then the bias signal can be provided to activate pixel units, but the circuit cost increases
Solution Approach 1:
The bias signal generation function is merged into the gate driver IC through integrated logic circuits, eliminating the need for a separate IC component. This reduction in component count directly lowers circuit cost while maintaining the ease of bias signal provision to pixel units
Solution Approach 2:
The gate driver IC is designed to generate its own bias signals internally using logic circuits that process gate control signals. This self-service capability eliminates the need for external bias signal generation hardware, reducing circuit cost while ensuring reliable bias signal delivery to pixel units
Data Source
AI summary
An electronic device is provided. The electronic device includes a pixel array, a gate driver and a bias signal driver. The pixel array includes a pixel unit. The gate driver generates a plurality of gate control signals. The bias signal driver is electrically connected to the pixel unit and the gate driver, and configured to generate a bias signal to activate the pixel unit according to a part of the plurality of gate control signals. The bias signal driver includes a first logic circuit and a second logic circuit.