Transparent OLED Panel Voltage Line Segmentation
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Solution Overview
Problem
Transparent OLED display devices face limitations in transmittance due to the presence of vertical constant voltage lines, which obstruct the view and reduce the overall transparency of the display panel.
Innovation Solution
The solution involves reducing the number of vertical constant voltage lines and optimizing their configuration, allowing for a higher transmittance by strategically placing them between neighboring transparent pixels, while maintaining the necessary voltage distribution through a grid of horizontal and vertical constant voltage lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If vertical constant voltage lines are included in the transparent display panel, then the transparent pixels can operate with proper voltage distribution, but the transmittance of the display panel is reduced due to line obstruction
Solution Approach 1:
The vertical constant voltage lines are segmented into first and second vertical constant voltage lines, with the first lines connected to first horizontal constant voltage lines and the second lines connected to second horizontal constant voltage lines. This segmentation allows for optimized routing that reduces overall line obstruction while maintaining proper voltage distribution to all transparent pixels.
Solution Approach 2:
The patent utilizes both vertical and horizontal constant voltage line groups to distribute voltages, transitioning from a single-dimension vertical line approach to a two-dimensional grid approach. This allows voltage distribution while minimizing the visual obstruction in the transparent display panel.
2Illumination intensity
If the number of vertical constant voltage lines is reduced to improve transmittance, then the visibility of the transparent display panel is enhanced, but the complexity of the voltage distribution network increases
Solution Approach 1:
The first vertical constant voltage lines are merged with the first horizontal constant voltage line groups, and the second vertical constant voltage lines are merged with the second horizontal constant voltage line groups. This merging reduces the total number of separate line elements while maintaining comprehensive voltage distribution through the combined network.
Solution Approach 2:
The horizontal constant voltage line groups serve dual purposes: they provide horizontal voltage distribution and serve as connection points for the vertical constant voltage lines. This multi-functionality reduces the need for separate vertical lines, thereby improving transmittance while managing network complexity.
Data Source
AI summary
A transparent display panel includes first through (N)-th vertical constant voltage lines (N is a natural number), first through (M)-th horizontal constant voltage line groups (M is a natural number), and a plurality of transparent pixels. The transparent pixels are disposed within a grid defined by the first through (N)-th vertical constant voltage lines and the first through (M)-th horizontal constant voltage line groups. The transparent pixels operate based on constant voltages transferred through the first through (N)-th vertical constant voltage lines and the first through (M)-th horizontal constant voltage line groups. The first through (N)-th vertical constant voltage lines include first vertical constant voltage lines and second vertical constant voltage lines. Each of the first through (M)-th horizontal constant voltage line groups includes a first horizontal constant voltage line and a second horizontal constant voltage line. The constant voltages include a first constant voltage and a second constant voltage.