OLED Display Panel Transparent Portions Under-Display Camera
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Solution Overview
Problem
In OLED display technology, the presence of opaque or low-transparency layers such as metal electrodes and light shielding layers in the display area makes it difficult to integrate optical elements like cameras under the display panel, as they require sufficient light energy which is obstructed by these layers, leading to challenges in achieving both high light transmittance and effective display functionality.
Innovation Solution
A display panel design incorporating a partial transparent region with alternating pixel units and transparent portions, allowing external light to pass through, while maintaining sufficient pixel density for display functionality, and using electrode and light shielding layer modifications to ensure light transmission without obstructing the transparent areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If opaque or low-transparency layers (metal electrode, light shielding layer) are provided in the display area, then display functionality is maintained, but light transmittance is reduced making it difficult to integrate optical elements
Solution Approach 1:
The display area is segmented into multiple regions: first pixel units for display, second pixel units for display, and third pixel units (transparent portions) for optical element integration. This segmentation allows different areas to serve different functions, with transparent portions providing high light transmittance while pixel units maintain display functionality.
Solution Approach 2:
Different regions of the display panel are assigned different optical properties. The first and second pixel units have opaque or low-transparency characteristics for display, while the third pixel units have high transparency for optical element integration. This local differentiation resolves the contradiction by allowing both high transmittance and display functionality in different locations.
2Illumination intensity
If the entire display area is made transparent to allow light transmission, then optical element integration is enabled, but display functionality is lost
Solution Approach 1:
Rather than making the entire display area transparent, the patent segments it into specific transparent portions (third pixel units) while maintaining pixel units for display. This selective transparency approach enables optical element integration in specific areas while preserving display functionality in other areas.
3Illumination intensity
If transparent portions are introduced between pixel units, then light transmittance is improved for optical elements, but pixel density and display area are reduced
Solution Approach 1:
The patent dynamically adjusts the distribution and proportion of transparent portions versus pixel units based on different display area requirements. The ratio of transparent portions to pixel units can be optimized according to the specific application needs, allowing flexible balancing between light transmittance and pixel density.
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
The partial transparent region achieves higher light transmittance necessary for optical elements while maintaining display functionality, allowing for full-screen display and minimizing non-display area usage, thus addressing the challenge of integrating optical elements under the display panel.
Implementation Method 1
the first transparent portions being configured such that external light is transmitted through the first transparent portions from one side of the display panel to the other side of the display panel
Data Source
AI summary
A display panel and a method for manufacturing the same are disclosed. The display panel includes: a display area having a plurality of first pixel units and a plurality of first transparent portions, the first transparent portions being configured such that external light is transmitted from one side of the display panel to the other side of the display panel through the first transparent portions, wherein at least two first pixel units are spaced apart by one or more first transparent portions.