Under-Display Mesh Pixel Layout for Better Image Sensing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Electronic devices with integrated display panels and touch panels experience poor image detection quality due to the installation of image sensors under the display panel, which affects the screen-to-body ratio and image sensing capabilities.
Innovation Solution
The implementation of a substrate with first and second sub-pixels and mesh units on the display panel, where the mesh units have openings that allow for improved light transmission, enhancing the image detection quality by increasing the transparent area and reducing pixel resolution in specific regions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a touch panel is disposed on the display panel to enable touch functionality, then the device can provide touch interaction, but the quality of images detected by the image sensor deteriorates due to interference from the touch panel and display panel
Solution Approach 1:
The display panel is divided into multiple sub-pixels (red, green, blue) arranged in a specific pattern, and the touch panel is segmented into multiple touch sensing regions. This segmentation allows different areas to have different functions - some regions prioritize display while others prioritize touch sensing, reducing mutual interference and improving both touch capability and image detection quality
Solution Approach 2:
Different regions of the display panel have different optical properties. The sub-pixels are designed with specific emission characteristics, and the mesh openings are strategically positioned to allow light transmission in certain areas while blocking in others. This local differentiation optimizes both touch sensitivity and image detection quality in respective regions
2Area of stationary object
If the screen-to-body ratio is increased by installing an image sensor under the display panel, then the display area is maximized, but image detection quality deteriorates due to interference from the touch panel and display panel layers
Solution Approach 1:
The patent introduces a mesh structure with openings that creates additional optical pathways. Light can pass through the mesh openings directly to the image sensor, bypassing some of the interfering layers. This dimensional approach to light transmission improves image detection quality while maintaining the high screen-to-body ratio achieved by placing the sensor under the display
Solution Approach 2:
The mesh structure acts as an intermediary between the display panel and the image sensor. It selectively transmits light while blocking interference from the touch panel, serving as a mediator that improves image detection quality without compromising the integrated design and high screen-to-body ratio
3Measurement precision
If mesh openings are positioned to overlap with sub-pixels to improve light transmittance, then image detection quality improves, but the complexity of the device structure increases
Solution Approach 1:
The mesh structure is integrated with the existing display and touch panel layers, merging multiple functions into a single structure. The mesh openings are positioned to align with sub-pixel arrangements, combining light transmission optimization with the existing pixel structure. This merging approach improves image detection quality while minimizing additional structural complexity by utilizing the existing layer arrangement
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 configuration improves image detection quality by increasing the transparent area and reducing pixel resolution, thereby enhancing the overall performance of the electronic device's image sensing capabilities.
Implementation Method 1
The first sub-pixel generates a first color light, the second sub-pixel generates a second color light
Implementation Method 2
This configuration enhances the transmittance of the display panel, allowing the optical sensor to detect light with higher intensity
Data Source
AI summary
An electronic device is provided and comprises a substrate, a first mesh unit, a first sub-pixel, and a second sub-pixel. The first mesh unit is disposed on the substrate, wherein the first mesh unit comprises a plurality of first mesh openings. The first sub-pixel and the second sub-pixel are disposed on the substrate, wherein the first sub-pixel and the second sub-pixel are overlapped with one of the plurality of first mesh openings in a top view direction of the electronic device. The first sub-pixel generates a first color light, the second sub-pixel generates a second color light, and the second color light is different from the first color light in color.