Display Apparatus Data Signal Transition Time Control
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Solution Overview
Problem
In liquid crystal display apparatuses, the transition time of data signals increases with the distance between the data driving part and the data line, leading to longer signal transition times and increased load, affecting display quality and efficiency.
Innovation Solution
The display apparatus includes a gate driving part and a data driving part that output gate and data signals, respectively, with a lookup table to control transition times and slew rates, adjusting signal timing based on the load and resistor-capacitor resistance of the data lines across multiple display areas to equalize pixel data charge rates and reduce heat and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the data driving part is placed far from the data line to reduce interference, then signal interference is reduced, but the transition time of the data signal increases
Solution Approach 1:
The patent applies dynamics by making the transition time of the data signal variable rather than fixed. The data driving part adjusts the transition time dynamically based on the position of the data line, allowing the signal characteristics to adapt to different spatial configurations and minimize both interference and transition time penalties
Solution Approach 2:
The patent changes the parameter of transition time according to the distance between the data driving part and the data line. By modifying this electrical parameter in response to spatial configuration, the system optimizes signal integrity and timing performance for different physical layouts
2Object-affected harmful factors
If the distance between the data driving part and the data line is increased, then signal interference is reduced, but the load of the display panel increases
Solution Approach 1:
The patent modifies signal parameters (transition time) to compensate for increased distance, allowing the system to maintain acceptable signal integrity and power consumption levels even when the data driving part is positioned farther from the data line
3Loss of energy
If the transition time of the data signal is increased to reduce load, then power consumption is reduced, but the display quality may be affected
Solution Approach 1:
The patent carefully adjusts the transition time parameter within an optimized range, increasing it sufficiently to reduce power consumption and load while maintaining it low enough to preserve display quality and signal integrity
Solution Approach 2:
The system incorporates feedback mechanisms that monitor signal quality and adjust transition time accordingly, ensuring that power consumption is minimized while display quality requirements are maintained through continuous optimization
Data Source
AI summary
A display apparatus includes a display panel, a gate driving part, and a data driving part. The display panel is configured to display an image, and includes a gate line and a data line. The gate driving part is configured to output a gate signal to the gate line. The data driving part is configured to output a data signal to the data line. A transition time of the data signal is a time when the data signal transitions from a low level to a high level, and the transition time of the data signal increases according to a decrease of a load of the display panel.