JDI: Simultaneous biometric authentication of pulse wave, fingerprint, and vein: Japan Open Innovation Award
-Four times the reading speed-
Japan Display (JDI):
We have developed a new high-performance thin image sensor.
For pulse wave measurement, the reading speed has been improved to 19.5 frames per second, which is 4.4 times that of the conventional method.
Thin image sensor:
High-definition vital signs can be obtained.
At the same time, biometric authentication of fingerprints and veins is also performed.
It is supposed to be installed in wearable devices that are wrapped around the wrist.
Helps prevent user spoofing and patient misunderstandings.
The three years after the aim to commercialize the prospect.
Level up the TFT drive method:
This time, JDI has reviewed the driving method of “low temperature polysilicon (LTPS) thin film transistor (TFT)”.
The “number of sensor scans per frame” has been halved from the conventional two times to one.
Achieves high-speed reading:
Achieves even higher speed reading.
The pulse wave can be measured more accurately.
A pulse wave is a biological signal that estimates the progress of arteriosclerosis and health conditions such as stress.
According to the heartbeat,
Peripheral vascular pressure and
It has become possible to show changes in volume.
JDI and the University of Tokyo:
The measurement method was changed compared to the sensor jointly announced in January 2020.
conventionally:
It was a transmissive type that irradiates a light emitting diode (LED) from above.
However, there was a “problem such as an increase in the size of the on-board equipment”.
This time:
“Reflective type with LED placed next to the sensor” was adopted.
It is easy to make it thinner and suitable for wearable devices.
The sensor structure is the same as before.
A TFT is formed on the polyimide resin,
Furthermore, an organic photodetector is placed on it.
Since the glass substrate is finally removed, it can be folded and used.
Flat Panel TV and Display World-2: LCD / Industry Trends
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Japan Display Co., Ltd.
Simultaneous measurement of biometrics and vital signs is possible: Development of sheet-type image sensor
3rd Japan Open Innovation Award
University of Tokyo
JDI
JDI owns LTPS (low temperature polysilicon thin film transistor) technology.
In collaboration with the University of Tokyo, we have succeeded in developing a sheet-type image sensor that can measure fingerprints, veins, and pulse waves with a single image sensor.
Development of sheet type image sensor
A sensor that can be attached directly to the skin without a feeling of wearing or stress.
This makes it possible to measure and link the user’s biometric authentication and health status.
Self-care and
Home medical care,
For expansion of insurance system
I think I can contribute.
News & Events: News Releases |
https://www.j-display.com/news/2021/20210225.html
JDI, thin image sensor capable of measuring fingerprints, veins, and pulse waves |
Manufacturing / New Technology ｜ Paper Article