Display Drive Circuit Compatibility via Dynamic Signal Selection
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Solution Overview
Problem
The incompatibility of drive chips from different manufacturers due to varying configurations of output channels in TFT-LCD display panels, leading to inconvenience in driving and increased costs.
Innovation Solution
A drive circuit with selection modules that can be controlled to connect signal input terminals to signal output terminals in a one-to-one manner based on a control signal, allowing for compatibility with different drive chips by adjusting the arrangement of signal lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different manufacturers configure output channels differently in drive chips, then each manufacturer can optimize for their specific application, but compatibility between drive chips from different manufacturers is lost
Solution Approach 1:
The patent implements dynamic configuration of signal line connections through control signals. The drive circuit can dynamically adjust which signal lines are connected to output channels based on the drive chip type, transforming a static hardware configuration into a dynamic, reconfigurable system. This resolves the contradiction by maintaining physical complexity while achieving software-configurable compatibility.
Solution Approach 2:
The patent changes the parameter of signal line connectivity from fixed to variable. By introducing control signals that can enable or disable specific connections between signal lines and output channels, the system can adapt its configuration parameters to match different drive chip requirements, thereby achieving universal compatibility without sacrificing optimization capabilities.
2Adaptability or versatility
If all N signal lines are used for output, then the drive chip has maximum output capability, but the display panel cannot support different resolution configurations
Solution Approach 1:
The patent segments the N signal lines into M active output channels and N-M inactive channels. This segmentation allows the system to utilize only the necessary number of signal lines for the current resolution requirement, while preserving the ability to activate additional channels if needed. This resolves the contradiction by creating a hierarchical structure where signal lines are divided into functional groups based on configuration needs.
Data Source
AI summary
A drive circuit and a driving method of a driving circuit, and a display device are provided. The driving circuit comprises: a drive chip comprising N signal lines disposed in order, wherein M signal lines of the N signal lines output a drive signal; and M selection modules, wherein each selection module comprises at least two signal input terminals, a signal output terminal and a control terminal. The signal output terminal is connected to a drive signal line, and the control terminal is connected to a control signal line. Each selection module is configured to control one of the signal input terminals to be connected to the corresponding signal output terminal, and the signal input terminals of the M selection modules, connected to the signal output terminals, are controlled to be correspondingly connected to M signal lines in an one-to-one manner according to a control signal.