Flexible Substrate Optical Filter for Bending Measurement
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Solution Overview
Problem
Existing flexible display technologies face challenges in accurately measuring bending degrees without damaging the device, as current methods require additional components and lack integration and aesthetics.
Innovation Solution
A flexible substrate with a base substrate and an optical filter that modulates light properties based on bending, using a grating structure to filter light emitted by a light-emitting element and measure bending degrees through changes in light properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If additional components are added to measure bending degree, then measurement capability is improved, but device complexity increases
Solution Approach 1:
The patent combines the bending degree measurement function with the existing optical filter structure by integrating a grating pattern into the optical filter. This merging approach allows the same component to serve dual purposes: optical filtering and bending measurement, thereby improving measurement capability without significantly increasing device complexity
Solution Approach 2:
The optical filter is designed with multi-functionality by incorporating a grating structure that enables it to both filter light and measure bending degree. This universal design allows a single component to perform multiple functions, eliminating the need for separate measurement components and reducing overall device complexity
2Measurement precision
If additional components are added to measure bending degree, then measurement capability is improved, but integration and aesthetics deteriorate
Solution Approach 1:
The measurement function is merged into the optical filter structure through integration of the grating pattern during the same manufacturing process. This approach maintains good integration and aesthetics by avoiding separate measurement components that would need to be added later
3Device complexity
If optical filter structure is used to measure bending, then integration is improved, but manufacturing precision requirements increase
Solution Approach 1:
The grating pattern is formed in the optical filter during the initial manufacturing process using photolithography and etching techniques. This preliminary action ensures that the measurement structure is precisely integrated from the start, maintaining both good integration and manageable manufacturing precision requirements
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 real-time, accurate measurement of bending degrees, preventing damage from excessive bending while maintaining integration and aesthetics.
Implementation Method 1
The optical filter is configured to receive a first light beam emitted by the first light-emitting element and filter the first light beam to obtain a second light beam
Implementation Method 2
the first film layer comprises a plurality of grating ridges that are periodically arranged to form a gating configured to filter the first light beam incident on the first film layer to obtain the second light beam
Data Source
AI summary
A flexible substrate, as well as a method of preparing the same, and a display panel are disclosed. The flexible substrate includes: a base substrate; a first light-emitting element and an optical filter disposed on the base substrate. The optical filter is configured to receive the first light beam emitted by the first light-emitting element and filter the first light beam to obtain a second light beam, and configured to enable physical properties of the second light beam to be modulated by a bending degree of the flexible substrate at a position where the optical filter is located.