Folding Display Panel Integrating Light Sensing for Fine Dust Measurement
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Solution Overview
Problem
Current display devices lack the capability to efficiently measure fine dust concentrations in the air, which is essential for user health and environmental monitoring.
Innovation Solution
A display device with a folding display panel that includes a light emitting area and a light sensing area, where the pixels in one area emit light and the sensors in another area receive this light to calculate fine dust concentration based on the light scattering, allowing for intuitive dust concentration display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a display device integrates fine dust sensing capability, then measurement precision of fine dust concentration is improved, but device complexity increases due to additional sensors and control circuits
Solution Approach 1:
The display panel serves dual functions: displaying images through pixels and sensing fine dust through sensors integrated in the same panel structure. This multi-functionality approach allows the device to measure fine dust concentration without adding separate sensing modules, thereby improving measurement precision while minimizing the increase in device complexity
Solution Approach 2:
The sensing circuits are merged with the display panel structure, where sensors are arranged in specific areas (second and third areas) and share the same substrate and control infrastructure as the display pixels. This integration combines the sensing function with the existing display architecture, reducing overall device complexity while enabling accurate fine dust measurement
2Measurement precision
If sensors are arranged in specific areas of the display panel, then measurement precision is improved through optimized light reception, but manufacturing precision requirements increase
Solution Approach 1:
The display panel is segmented into distinct functional areas: first area for light emission (pixels), second area for light reception (sensors), and third area for reference measurements. This spatial segmentation allows sensors to be positioned in optimized locations for light reception while maintaining standard manufacturing processes, reducing manufacturing precision requirements compared to fully integrated approaches
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
Enables accurate and user-friendly measurement and display of fine dust concentrations, enhancing user awareness and health protection by integrating fine dust sensing into a multimedia electronic device.
Implementation Method 1
a light emitting element, and a pixel driving circuit connected with the light emitting element and which drive the light emitting element
Implementation Method 2
a light sensing element and a sensor driving circuit connected with the light sensing element and which output a sensing signal corresponding to external light
Implementation Method 3
receiving a light at sensors disposed in a second area of the display panel... calculating a fine dust concentration based on the sensing signal
Data Source
AI summary
A display device includes a display panel, a driving controller, and a readout circuit. The display panel includes a first part and a second part. The first part includes a first pixel set. The second part includes a first sensor set. The driving controller controls the first pixel set to emit first light when controlling the first sensor set to receive second light. The first sensor set generates a sensing signal using the second light. The readout circuit is electrically connected to at least one of the driving controller and the first sensor set and receives the sensing signal. The display device calculates a dust concentration using the sensing signal.