Vibe evolves, I tried to experience a next-generation unit pursuing a realistic feel by employing piezo elements

A new model of a unit for a vibrate function that vibrates a terminal when a phone call arrives or shakes a smartphone with a smartphone while playing a game is called "CP + CAMERA & PHOTO IMAGING SHOW 2013"ofTexas InstrumentsSince it was exhibited in the booth, I decided to ask you a detailed story about what is new.

Haptic Driver - Piezo Haptic Driver - DRV 8662 - TI.com
http://www.ti.com/product/drv8662&DCMP=hpa_contributed_articles&HQS=Other+OT+drv8662-ca

Appearance of booth.


Although the company is developing only the driver for the vibration unit, the whole foundation which can experience the vibration of the demonstration smartphone and the unit is placed in the booth.



A panel of commentaries.



A demo of an application that can feel the feeling of playing the guitar with a smartphone equipped with a Texas Instruments driver and a corresponding piezo (touch sensor) touch feedback unit has been performed, and a slide of a finger on the display and a jahn and a string You can feel the state of the terminal trembling when you play.


Although the function of vibrating according to the user's input is already common with today's smartphone and tablet, the quality of vibration is different in the demonstration machine touched this time, but it is not a loose vibration called "Vevey" but a quick shaking way of "rising" It is characterized by becoming.

When opening the back of the terminal it looks like this.


This part is for generating vibration.


It looks like this on a demonstration board. The quick rise of vibration makes it possible for smartphones to respond with a time lag closer to what people are experiencing in the real world, giving the user a feeling that they are pushing the button realistically It seems to be able to do.


Meanwhile, the following is a vibrating unit which is now widely used. The left adopts an eccentric motor, and the right is what is called a linear vibrator. Although these two types are inexpensive and compact, on the other hand, it seems that the rise of vibration will be delayed as the mechanical movement increases.


An explanatory movie by people in Texas Instruments that seems to be crisp with the difference between them in about 1 minute can be seen below.

Piezo Touch feedback driver commentary - YouTube


The driver and vibration unit using this piezo element have already been developed by Fujitsu's "Easy smartphone"It is said that it is planned to be adopted to smartphones made by domestic major manufacturers in the future. Although it is a part that you can not usually see in the eyes, the vibrator continues to evolve with the aim of reproducing realistic feel.

The reason why this technology exhibition is for the camera eventCP +I asked if it is being done in "What recent cameras have been dealing with touch operations are increasing, but I have seen products that return feedback with vibration according to the touch like a smartphone Of course, if you synchronize with the shutter, the picture will be blurred but there is a possibility that the operability can be improved with tactile feedback on the menu screen etc. So if there is a market called a vibration unit for the camera We thought that there was nothing, we did exhibit. "