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Pressure transducer and manufacturing method thereof, and electronic device

The technology of a pressure sensor and a manufacturing method is applied to the fluid pressure measurement using optical methods, instruments, and the measurement of force by measuring the change of optical properties of materials when they are stressed. Simple process and low driving voltage

Active Publication Date: 2017-10-24
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to overcome the single limitation of existing pressure sensor types, the inventor proposes a new pressure sensor

Method used

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  • Pressure transducer and manufacturing method thereof, and electronic device
  • Pressure transducer and manufacturing method thereof, and electronic device
  • Pressure transducer and manufacturing method thereof, and electronic device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079] combine figure 1 and figure 2 As shown, the electroluminescent device of the pressure sensor in this embodiment is an organic light emitting diode, which makes the pressure sensor flexible. The pressure sensor specifically includes:

[0080] The organic light emitting diode 3 includes a first electrode 30, a second electrode 31, and an organic light emitting layer 32 disposed between the first electrode 30 and the second electrode 31, wherein the materials of the first electrode 30 and the second electrode 31 can be Select metal materials, such as: Cu, Al, Ag, Mo, Cr, Nd, Ni, Mn, Ti, Ta, W and other metals and alloys of these metals, the first electrode 30 and the second electrode 31 can be a single-layer structure or Multi-layer structure, multi-layer structure such as Cu\Mo, Ti\Cu\Ti, Mo\Al\Mo, etc. The material of the first electrode 30 and the second electrode 31 can also be a conductive polymer. The material of the organic light-emitting layer 32 can be select...

Embodiment 2

[0115] Based on the same inventive concept, a method for manufacturing a pressure sensor is provided in this embodiment, including:

[0116] forming an electroluminescent device, including the steps of forming a first electrode, a second electrode, and an electroluminescent layer between the first electrode and the second electrode;

[0117] Forming a resistance layer, the first electrode and the resistance layer are respectively connected to two poles of a power supply to form a loop;

[0118] Forming a photoelectric sensor, the resistance layer is deformed under the influence of pressure, causing the resistance of the resistance layer to change, thereby changing the brightness of the electroluminescence device, and the photoelectric sensor is used to obtain Parameters related to the brightness change of the device;

[0119] A detection unit is provided, connected with the photoelectric sensor, and the detection unit is used to determine the magnitude of the applied pressure...

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Abstract

The invention relates to the technical field of pressure detection, and discloses a pressure transducer and a manufacturing method thereof, and an electronic device. The pressure transducer comprises an electroluminescent device and a resistance layer, and electrodes of the resistance layer and the electroluminescent device are respectively connected with two electrodes of a power supply to form a loop. The pressure transducer converts deformation caused by pressure into the brightness change of the electroluminescent device, and determines the pressure magnitude in dependence on the brightness change, and is advantaged by being low in driving voltage, high in efficiency, simple in structure and process technology and the like. Furthermore the electroluminescent device is characterized by being flexible, and therefore a flexible pressure transducer can be achieved, and the pressure transducer can be applied to electronic devices, which have a flexible demand, such as E-skin.

Description

technical field [0001] The invention relates to the technical field of pressure detection, in particular to a pressure sensor, a manufacturing method thereof, and an electronic device. Background technique [0002] Pressure sensor is the most commonly used sensor in industrial practice, and it is widely used in various industrial automatic control environments. Existing pressure sensors are mostly mechanical sensors, such as piezoresistive pressure sensors and capacitive pressure sensors, which can detect pressure by converting pressure signals into electrical signals. [0003] In order to overcome the limitation of the single type of the existing pressure sensor, the inventor proposes a new pressure sensor. Contents of the invention [0004] The invention provides a pressure sensor, a manufacturing method thereof, and an electronic device to provide a novel pressure sensor. [0005] In order to solve the above technical problems, an embodiment of the present invention p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L1/22
CPCG01L1/22G01L1/2287G01L1/24G01L11/02
Inventor 彭锐王庆贺贾文斌叶志杰范招康
Owner BOE TECH GRP CO LTD
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