Display Scan Driving to Stabilize 8K Data Signal Voltage
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Solution Overview
Problem
The increase in display resolution, particularly with 8K technology, leads to higher data transfer rates and power consumption in data driver chips, resulting in potential burnout risks and display issues like vertical stripes due to rapid voltage jumps and resistance differences in data lines.
Innovation Solution
A display apparatus with a control unit, gate drive unit, and data drive unit that converts image and clock signals to maintain voltage variation below a threshold, extending data signal jumps and reducing power consumption and resistance impacts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If display resolution is increased to 8K, then display detail and viewing quality are improved, but data transfer rate and power consumption increase
Solution Approach 1:
The patent segments the gate scanning signal lines into multiple groups and processes them in separate stages. Instead of updating all pixels simultaneously, the display is divided into multiple scanning regions that are updated sequentially, reducing the peak data transfer rate and power consumption requirements while maintaining 8K resolution
Solution Approach 2:
The patent implements periodic updating of different scanning regions rather than continuous full-screen updates. By alternating between different gate scanning signal line groups in periodic cycles, the system reduces instantaneous power consumption and data transfer demands while preserving overall display quality
2Productivity
If data transfer rate is increased to support 8K resolution, then display quality is improved, but voltage jumps and resistance impacts cause vertical stripes and chip burnout
Solution Approach 1:
The data transfer process is segmented into multiple smaller transactions corresponding to different scanning regions. Instead of transferring all pixel data in one continuous high-rate stream, the system divides data transfer into discrete batches, reducing voltage jumps and thermal stress on the data driver chip
Solution Approach 2:
The patent dynamically adjusts the data transfer rate based on the scanning region being updated. By varying the transfer rate to match the actual display update requirements of each region, the system avoids sustained high-rate transfers that cause voltage instability and chip overheating
Data Source
AI summary
A display apparatus, a driving method, and an electronic device. The display apparatus includes a display substrate, a control unit, a gate driving unit, and a data driving unit. The display substrate includes rows and columns of sub-pixels, gate scanning signal lines, and data signal lines. The control unit is configured to trigger an image conversion operation for converting an image frame to be displayed into at least one target image frame corresponding to a preset type and a clock conversion operation for obtaining at least one group of clock signals. The gate driving unit is configured to output a gate scanning signal to some of the gate scanning signal lines, and the data driving unit is configured to output a data signal to the data signal lines on the basis of pixel data of each target image frame.