Micro LED Transparent Display Area for Under-screen Camera
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Solution Overview
Problem
The under-screen camera area in organic light-emitting diode display panels experiences low light transmittance and brightness, leading to inferior display performance due to a lower number of pixels per inch and reduced lifespan when attempting to increase brightness.
Innovation Solution
Incorporating a transparent display area with micro light-emitting diodes, which have higher luminous efficiency and longer lifespan, alongside a regular display area with organic light-emitting diodes, to achieve high light transmittance and brightness while maintaining image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the brightness of the under-screen camera area is increased by increasing the number of pixels per inch, then the light-emitting brightness is improved, but the light transmittance deteriorates and the lifespan decreases
Solution Approach 1:
The patent applies local quality by dividing the display screen into two distinct regions: a display area with higher pixel density for image display, and a transparent display area with lower pixel density for light transmission. This allows each region to have optimized characteristics - the transparent area maintains lower pixel density to preserve light transmittance and lifespan, while the display area provides sufficient brightness for imaging purposes.
Solution Approach 2:
The display screen is segmented into functionally distinct zones: a display area containing multiple second display pixel units arranged in an array, and a transparent display area containing first display pixel units. This segmentation enables independent optimization of each region's characteristics, allowing the transparent area to maintain lower pixel density for light transmission while the display area provides sufficient brightness.
2Illumination intensity
If the number of pixels per inch in the under-screen camera area is increased, then the light-emitting brightness is improved, but the light transmittance deteriorates
Solution Approach 1:
The patent implements local quality by assigning different pixel densities to different functional regions. The transparent display area uses lower pixel density to maximize light transmittance for the under-screen camera, while the display area uses higher pixel density for adequate image display quality. This localized optimization resolves the contradiction between brightness and light transmittance.
Solution Approach 2:
The screen is divided into segmented regions with different optical requirements. The transparent display area is segmented as a distinct functional zone with reduced pixel density, allowing light to pass through to the under-screen camera while still providing necessary display functionality. This segmentation enables the system to meet both brightness and light transmittance requirements.
3Area of stationary object
If the proportion of the under-screen camera area is increased, then the screen-to-body ratio is improved, but the display performance deteriorates
Solution Approach 1:
The patent applies local quality by creating distinct optical zones across the screen. The transparent display area has optimized characteristics for light transmission to the under-screen camera, while the display area has optimized characteristics for image display. This allows the under-screen camera area to occupy a larger proportion of the screen, improving the screen-to-body ratio, while display performance is maintained in the display area through appropriate pixel density.
Solution Approach 2:
The screen is segmented into functional regions that can be independently optimized. The transparent display area segment allows for larger under-screen camera integration, improving screen-to-body ratio, while the display area segment maintains sufficient pixel density for acceptable display performance. This segmentation resolves the contradiction between maximizing camera area and maintaining display quality.
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 solution ensures high light transmittance and display brightness in the transparent area, preventing inferior display performance and extending the lifespan of the under-screen camera area.
Implementation Method 1
The transparent display area includes at least one first display pixel unit which includes at least one micro light-emitting diode
Implementation Method 2
each of the second display pixel units includes an organic light-emitting diode
Data Source
AI summary
A display panel and an electronic equipment are provided. By setting micro light-emitting diodes in a transparent display area, the transparent display area has high light transmittance and high display brightness, and a technical problem of an inferior display performance of the display panel and the electronic equipment is prevented.