Configurable Driver Chip Ports for Mini-LED Backlight Cascading
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Solution Overview
Problem
The challenge in Mini-LED backlight modules is the difficulty in efficiently cascading driving chips due to fixed input/output port configurations, leading to wire intersections and increased complexity, as well as long feedback signal lines that affect signal transmission quality.
Innovation Solution
A driving chip with configurable signal ports, utilizing a logic control module to dynamically determine input/output functions based on received configuration signals, allowing for efficient cascading and simplified wiring by adapting port roles according to specific signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If fixed input/output port configurations are used in driving chips, then the chip structure is simple, but wire intersections increase and cascading efficiency decreases
Solution Approach 1:
The patent implements dynamic port configuration where the logic control module automatically identifies configuration signals and dynamically switches port functions between input and output modes. This allows the driving chip to adapt its signal transmission direction based on cascading requirements, eliminating the need for fixed port assignments and reducing wire intersections while maintaining simple chip structure.
2Ease of manufacture
If fixed input/output port configurations are used in driving chips, then the chip design is straightforward, but wiring complexity increases
Solution Approach 1:
The logic control module monitors configuration signals on both ports and dynamically determines signal transmission direction. When a configuration signal is detected on a port, the module switches that port to input mode and the other port to output mode, enabling flexible wiring arrangements without increasing chip design complexity.
3Device complexity
If configuration signals are transmitted through long feedback signal lines, then port connections are simplified, but signal transmission quality deteriorates
Solution Approach 1:
The driving chip dynamically configures its ports to transmit configuration signals in the optimal direction, eliminating the need for long feedback signal lines. By automatically identifying configuration signals and switching port functions, the system achieves short-distance signal transmission between adjacent chips, improving signal quality while maintaining simplified port connections.
Data Source
AI summary
The present disclosure provides a driving chip, which includes: a first signal port and a second signal port; a logic control module connected to the first signal port and the second signal port, the logic control module being configured to configure, according to a configuration signal received by the first signal port or the second signal port, one of the first signal port or the second signal port as a signal input port, configure the other of the first signal port or the second signal port as a signal output port, and output the configuration signal or an updated configuration signal through the signal output port. The present disclosure further provides a method for configuring ports of the driving chip, a light emission driver, a backlight module and a display apparatus.