Display Panel Driving Method Reducing Polarity Inversion Frequency
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing liquid crystal display panel driving methods consume excessive power and cause temperature rises due to frequent polarity inversion of driving signals, which affects display quality and reduces the lifespan of liquid crystals.
Innovation Solution
The proposed solution involves a display panel and driving method where multiple rows of TFTs are connected to a single gate line, allowing simultaneous turn-on of gates and reducing the frequency of polarity inversion, thereby minimizing power consumption and maintaining display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If dot-inversion is performed by inverting polarity of driving signals on each source line once per line scan, then flickers are reduced and display quality is improved, but power consumption increases and temperature rises at the source driving integrated circuit
Solution Approach 1:
The patent segments the pixel array into multiple blocks along the row direction, with each block containing multiple sub-pixels. By controlling TFTs within the same block to have the same polarity and TFTs in adjacent blocks to have opposite polarities, the inversion operation is performed at the block level rather than individual line level, reducing the frequency of polarity inversions and thereby reducing power consumption while maintaining display quality.
Solution Approach 2:
The patent merges multiple TFTs within the same block to share the same driving signal polarity. Instead of inverting polarity for each source line independently, adjacent blocks are grouped together to undergo polarity inversion as a unit, reducing the total number of inversion operations and the associated power consumption and heat generation.
2Reliability
If dot-inversion is performed frequently to maintain display quality, then flickers are reduced, but the lifespan of liquid crystals is reduced due to excessive power consumption and temperature rise
Solution Approach 1:
By segmenting the display into blocks and performing polarity inversion at the block level rather than line level, the frequency of inversion operations is reduced. This decreases the stress and thermal cycling on liquid crystal molecules, thereby extending their operational lifespan while maintaining adequate display quality through sufficient inversion coverage.
Solution Approach 2:
The patent changes the inversion parameter from line-level to block-level operation, reducing the inversion frequency. This parameter change lowers the cumulative thermal and electrical stress on the liquid crystals, extending their lifespan while maintaining display quality through appropriate block sizing and inversion timing.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach reduces power consumption and prevents temperature increases in the source driving integrated circuit, ensuring stable display performance while extending the lifespan of liquid crystals.
Implementation Method 1
When a thin film field effect transistor is powered on, rotation degree of liquid crystal molecules is changed by means of rotation performance of the liquid crystal molecules filled in the thin film field effect transistor, so that the corresponding sub-pixel displays a corresponding color
Data Source
AI summary
A display panel, a driving method for the same, and a display apparatus, wherein the display panel includes: a display substrate with a plurality of TFTs arranged in an array, a source driving integrated circuit and a gate driving integrated circuit, the gate driving IC is connected with a plurality of gate lines, each gate line is connected with the gates of the TFTs in adjacent N rows, and different gate lines are connected with the gates of the TFTs in different rows, N is an integer being greater than 1; the source driving IC is connected with a plurality of source lines, sources of different TFTs connected to a same gate line are connected with different source lines, and sources of the TFTs, which are connected to different gate lines and located in a same column and spaced g*N−1 TFTs apart, are connected with a same source line.