Optical micro-cavity, force measuring device and method, modulus measuring method and display panel

Abstract

An embodiment of the invention provides an optical micro-cavity, a force measuring device, a force measuring method, a modulus measuring method and a display panel. The optical micro-cavity comprises a photoluminescence layer, a photonic crystal layer and a semi-transmitting and semi-reflecting layer, wherein the photoluminescence layer is configured to generate light; the photonic crystal layer is arranged on one side of the photoluminescence layer, and is configured to reflect the light generated by the photoluminescence layer and transmit excitation light used for the photoluminescence layer; and the semi-transmitting and semi-reflecting layer is arranged on the other side of the photoluminescence layer and opposite to the photonic crystal layer, and is configured to transmit and reflect the light generated by the photoluminescence layer partially. The force measuring device comprises the optical micro-cavity and at least one optical sensor. According to the embodiment, the optical micro-cavity, the force measuring device and the display panel provided by the invention are simple in structure and easy in batch manufacturing, and the force measuring method and the modulus measuring method provided by the invention are easy to implement.

Description

technical field [0001] The invention relates to the technical field of force measurement, in particular to an optical microcavity, a force measurement device and method, a modulus measurement method and a display panel. Background technique [0002] In the existing field of force measurement, especially in the field of micro force measurement, interlocking measurement is mainly used, including mechanical interlocking, electronic interlocking and optical fiber interlocking. The mechanical linkage force measuring device includes, for example, a spring balance, which measures the force to be measured according to the displacement of the mechanical parts under the action of the force to be measured. The electronic interlocking force measuring device includes, for example, a high-precision electronic scale, which measures the force to be measured according to the change of the characteristic value of the electronic component under the action of the force to be measured. In the o...

AI Technical Summary

Problems solved by technology

[0003] In the mechanical linkage force measurement device, the contact damping between the mechanical components cannot be avoided, which inevitably introduces additional system errors

In the electronic linkage force measuring device, it is impossible to fundamentally eliminate the influence of external factors such as electromagnetic environment, humidity, temperature, etc. on the measurement, resulting in errors

The optical fiber sensor linkage type force measurement device has good anti-interference ability and measurement accuracy, but the optical design requires high precision, and the design and production process is complicated and the cost is high

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