OLED Panel Pressure and Light Detection Integration
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Solution Overview
Problem
Existing organic light-emitting display panels require separate pressure sensors on the periphery, increasing manufacturing complexity and costs, while also limiting the integration of pressure-sensitive and light-sensitive touch technologies.
Innovation Solution
Integration of pressure-sensitive detection structures and light-sensitive identification structures on the same layer within the organic light-emitting display panel, allowing for pressure sensing and fingerprint identification without additional manufacturing processes or costs, and enabling narrow frame designs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If pressure sensors are separately provided on the periphery of the display, then pressure sensing function can be achieved, but manufacturing complexity and costs increase
Solution Approach 1:
The patent merges the pressure-sensitive detection structure and light-sensitive identification structure into a single integrated array on the same layer. The semiconductor material film serves dual purposes: detecting pressure through resistance changes and detecting light for fingerprint identification. This consolidation eliminates separate peripheral pressure sensors and their associated manufacturing processes, directly resolving the contradiction between manufacturing simplicity and functional integration.
Solution Approach 2:
The semiconductor material film is designed to perform multiple functions simultaneously: pressure sensing through piezoresistive effect and light sensing through photodetector effect. By making the detection structure universal, the patent eliminates the need for separate dedicated pressure sensors, thereby reducing manufacturing complexity while achieving both pressure-sensitive and light-sensitive touch technologies.
2Length of moving object
If pressure-sensitive detection structures are provided in the display region, then narrow frame can be realized, but manufacturing complexity increases
Solution Approach 1:
By merging pressure-sensitive and light-sensitive detection structures into a single integrated array within the display region, the patent enables narrow frame design without requiring separate peripheral sensor arrangements. The unified structure reduces the overall footprint and allows the detection functions to be embedded within the display area itself, achieving narrow frames while maintaining manufacturing feasibility through the shared semiconductor material film.
3Ease of manufacture
If separate pressure sensors are used, then pressure sensing is achieved, but additional manufacturing processes are required
Solution Approach 1:
The patent combines pressure-sensitive and light-sensitive detection capabilities into a single semiconductor material film array, eliminating the need for separate pressure sensor manufacturing processes. The unified structure uses the same material layer for both detection modes, reducing manufacturing steps while maintaining reliable detection accuracy through consistent material properties and integrated signal processing.
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 integration reduces manufacturing processes and costs, enables both pressure-sensitive and light-sensitive touch technologies, and allows for full-screen fingerprint control and identification, while maintaining display effectiveness.
Implementation Method 1
the pressure-sensitive detection structure includes a semiconductor material film
Implementation Method 2
the light-sensitive identification structure includes a light-sensitive identification switch
Data Source
AI summary
Disclosed are an organic light-emitting display panel and an electronic device. The organic light-emitting display panel comprises a first substrate; the first substrate comprises a plurality of pressure-sensitive detection structures and a plurality of light-sensitive identification structures provided in an array, the pressure-sensitive detection structure comprises a semiconductor material film, the light-sensitive identification structure comprises a light-sensitive identification switch, the light-sensitive identification switch comprises a first active layer, and the semiconductor material film and the first active layer are provided on the same layer.