Display Device Load Matching Units for Luminance Uniformity
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Solution Overview
Problem
Display devices with atypical or asymmetrical polygon shapes face challenges in maintaining uniform luminance due to varying data line lengths, which affect load capacitance and image display quality.
Innovation Solution
The implementation of load matching units with compensation capacitors, arranged in a line and proportional to data line lengths, to compensate for load capacitance variations across different areas of the display panel, ensuring uniform luminance across the display panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display panel uses an atypical or asymmetrical polygon shape, then the display device can achieve diverse form factors and meet varying consumer demands, but the luminance becomes non-uniform due to varying data line lengths affecting load capacitance
Solution Approach 1:
The patent applies local quality by configuring different numbers of compensation capacitors in different regions of the display panel. Specifically, a first number of compensation capacitors is configured in a first region and a second number of compensation capacitors is configured in a second region, where the first and second numbers are different. This local differentiation compensates for the varying load capacitance caused by different data line lengths in different regions, thereby achieving uniform luminance across the entire display while maintaining the atypical or asymmetrical polygon shape.
2Illumination intensity
If data lines are made shorter to reduce load capacitance in certain regions, then luminance can be improved in those regions, but the display area that can be covered is reduced
Solution Approach 1:
The patent applies parameter changes by varying the number of compensation capacitors based on the regional characteristics of the display panel. In regions with shorter data lines that have lower load capacitance, fewer compensation capacitors are configured. In regions with longer data lines that have higher load capacitance, more compensation capacitors are configured. This dynamic adjustment of capacitor numbers compensates for the inherent differences in load capacitance, enabling the use of shorter data lines without sacrificing display area while maintaining uniform luminance across the panel.
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 solution effectively maintains uniform load capacitance and luminance across the display panel, even with varying data line lengths, enhancing image display quality for atypical or asymmetrical polygon-shaped displays.
Implementation Method 1
a second non-display area adjacent to the second display area, comprising a plurality of load matching units respectively connected to the plurality of data lines of the second display area to compensate for load capacitance of the plurality of data lines of the second display area
Data Source
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AI summary
A display device includes: a first display area including a plurality of data lines extending in a first direction; a second display area at one side of the first display area, comprising a plurality of data lines shorter than the data lines of the first display area; a first non-display area adjacent to the first display area; and a second non-display area adjacent to the second display area, comprising a plurality of load matching units respectively connected to the plurality of data lines of the second display area and configured to compensate for load capacitance of the plurality of data lines of the second display area.