Data Driver Channel Grouping for Atypical Display Panels
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Solution Overview
Problem
Conventional methods for driving atypical display panels often result in deteriorated display quality and increased dead space where no image is displayable due to the use of a matrix of orthogonal gate lines and data lines, which are not well-suited for non-rectangular shapes.
Innovation Solution
A display apparatus with a data driver having separate channel groups that output data voltages in opposite sequences to different areas of the display panel, allowing for efficient image display on non-rectangular shapes by reversing the data output sequence in specific areas to reduce dead space and maintain image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a conventional matrix of orthogonal gate lines and data lines is used to drive an atypical display panel, then the display panel can be driven using standard driving methods, but the display quality deteriorates and dead space increases
Solution Approach 1:
The data driver is divided into multiple channel groups, where each channel group drives a specific region of the display panel. This segmentation allows different output sequences to be applied to different regions, resolving the conflict between using standard driving methods and maintaining display quality on atypical panels.
Solution Approach 2:
Different regions of the display panel are driven with different data output sequences tailored to their specific geometric characteristics. This local customization of driving parameters ensures optimal display quality in each region while maintaining overall compatibility with standard driving architectures.
2Ease of manufacture
If a conventional matrix of orthogonal gate lines and data lines is used to drive an atypical display panel, then the display panel can be driven using standard driving methods, but dead space increases
Solution Approach 1:
The data output sequence is inverted or reversed in specific channel groups to match the geometric orientation of atypical display panels. This inversion allows the data lines to efficiently cover the entire displayable area without creating dead spaces, while still using the conventional orthogonal matrix structure.
3Device complexity
If data voltages are output in a single sequence to an atypical display panel, then the data driver structure is simple, but image quality deteriorates in certain areas
Solution Approach 1:
The data driver is segmented into multiple channel groups, each capable of independent output sequence control. This segmentation enables different regions to receive appropriately sequenced data voltages, maintaining image quality without requiring a completely complex custom driver architecture.
Solution Approach 2:
The output sequence parameter is changed for different channel groups to match the geometric characteristics of different display regions. This parameter adjustment improves image quality across the entire atypical panel while maintaining a relatively simple overall driver structure.
Data Source
AI summary
A display apparatus includes a display panel configured to display an image. A gate driver is configured to output a plurality of gate signals to the display panel. A data driver includes a first area and a second area. The first area of the data driver includes a first channel group configured to output first data voltages in a first output sequence. The second area of the data driver includes a second channel group configured to output second data voltages in a second output sequence opposite to the first output sequence.