Compensation Lines for Non-Rectangular Display Panel Brightness Uniformity
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Solution Overview
Problem
Non-rectangular display panels, such as those with arc-shaped edges, experience non-uniform brightness due to differences in sub-pixel unit density and load distribution, leading to uneven display effects and challenges in achieving a narrow frame design.
Innovation Solution
The introduction of compensation lines in the display region, electronically connected with gate or data lines, to perform resistance and capacitance compensation, ensuring uniform brightness across different regions without occupying non-display space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If compensation lines are arranged in the non-display region, then the non-rectangular display panel can achieve uniform brightness, but the frame width increases
Solution Approach 1:
The patent moves the compensation lines from the non-display region (2D plane outside display area) to the display region (2D plane within display area), effectively utilizing the display region space for compensation purposes. This dimensional repositioning allows the compensation lines to be electronically connected with gate or data lines within the display region, achieving uniform brightness without increasing the non-display region area or frame width.
2Adaptability or versatility
If the display panel uses a non-rectangular shape, then the appearance and application scenarios are improved, but the load distribution becomes non-uniform
Solution Approach 1:
The patent applies local quality by introducing compensation lines specifically in the display region corresponding to the non-rectangular areas (such as arc-shaped edges) where load distribution is non-uniform. These compensation lines are electronically connected with gate or data lines to provide localized resistance and capacitance compensation, adjusting the electrical characteristics in specific regions to achieve uniform load distribution across the entire display panel while maintaining the non-rectangular shape.
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 reduces load differences and brightness variations between regions, enhancing user visual experience while allowing for a narrow frame design by effectively compensating for the uneven load distribution in non-rectangular display panels.
Implementation Method 1
an orthographic projection of the compensation line on the substrate is overlapped with an orthographic projection of one of the multiple power supply lines on the substrate, and a capacitance is formed between the compensation line and the power supply line
Data Source
AI summary
A display panel and a display device are provided. A display region is divided into a first display region and at least one second display region smaller than the first display region. The display panel includes compensation lines and to-be-compensated lines located in the display region. Each compensation line is electronically connected with one to-be-compensated line, an orthographic projection of the compensation line on the substrate is overlapped with an orthographic projection of one power supply line on the substrate, and a capacitance is formed between the compensation line and the power supply line, or each compensation line is electronically connected with one power supply line, an orthographic projection of the compensation line on the substrate is overlapped with an orthographic projection of one to-be-compensated line on the substrate, and a capacitance is formed between the compensation line and the to-be-compensated line.