Electronics and Telecommunications Research Institute

Wooseup Youm

Hye Jin Kim

Yun-Jeong Kim

Hanbit Jin

Chan-Hwa Hong

YuLim Min

Seung Youl Kang

Chan Woo Park

Ji-Young Oh

Bock Soon Na

Jong Tae Lim

Kang-Ho Park

JoonMin Lee

Seongdeok Ahn

Chunwon Byun

Chan-Mo Kang

Woongseob Han

Jae-Hyeung Park

Dae Hyun Ahn

Jiyun Han

A near-eye display system may comprise: a display panel; a pixelated optical shutter disposed to be spaced apart from a front surface of the display panel by a predetermined distance, and configured to selectively pass light from the display panel through an aperture formed therein; and a transmissive retro-reflector configured to transversely retro-reflect a portion of the light diverging after passing through the aperture of the pixelated optical shutter so that the portion of the light converges on a viewpoint of a position of a user's eye, wherein the aperture of the pixelated optical shutter and the viewpoint in which the transversely retro-reflected light converges on the position of the user's eye form a symmetry with respect to the transmissive retro-reflector.

Vision correction near-eye display system and operating method of near-eye display

Provided is a low frequency vibrating actuator device including an actuator configured to generate a vibration by receiving a voltage, a spring structure disposed on the actuator, and a vibrating mass part disposed on the spring structure. Here, the spring structure includes a first thin-film, a first spacer disposed between the first thin-film and the actuator, and a second spacer disposed between the first thin-film and the vibrating mass part. Also, the first spacer and the second spacer are horizontally offset from each other.

Low frequency vibrating actuator device and low frequency vibrating actuator apparatus including the same

Provided is a haptic waveform storage system including a sensor configured to measure a target object to generate a sensing signal including tactile texture information, a waveform extraction unit configured to extract a basic frequency and an envelope from the sensing signal and generate haptic waveform information including information about the basic frequency and the envelope, and a library storage unit configured to store the haptic waveform information.

Haptic feedback system

Provided is a vibratory stimulation device including a first substrate, a connection band connected to both sides of the first substrate, and a vibration element array including a plurality of vibration elements provided on the first substrate, wherein each of the vibration elements includes a stand provided on the first substrate, a vibration film provided on the stand and in contact with the stand at an edge, a vibrator provided on an upper or lower surface of the vibration film, and an electrode wire connected to the vibrator, wherein the vibration film includes a material that is more flexible and stretchable than the stand.

Vibratory stimulation device and vibratory stimulation system including the same

Provided is a telehaptic device which includes a piezoelectric sensor module and a piezoelectric actuator module that are spaced apart from each other, wherein the piezoelectric sensor module includes a first flexible substrate, a first support substrate connected to the first flexible substrate, a piezoelectric sensor array on the first flexible substrate, and a first wireless communication circuit on the first support substrate, the piezoelectric actuator module includes a second flexible substrate, a second support substrate connected to the second flexible substrate, a piezoelectric actuator array on the second flexible substrate, and a second wireless communication circuit on the second support substrate, the piezoelectric sensor array includes piezoelectric sensors, the piezoelectric sensors being spaced apart according to a first pitch, the piezoelectric actuator array includes piezoelectric actuators, the piezoelectric actuators being spaced apart according to a second pitch, the first pitch and the second pitch are the same.

Telehaptic device

The present disclosure relates to a piezoelectric device, and more particularly, to a piezoelectric device including: a piezoelectric actuator; a displacement transmission structure disposed on the piezoelectric actuator; and a displacement amplification structure disposed between the piezoelectric actuator and the displacement transmission structure. Here, the displacement amplification structure includes: a first displacement amplification structure and a second displacement amplification structure, which cross each other; and a fixing pin that passes through the first displacement amplification structure and the second displacement amplification structure to connect the first displacement amplification structure and the second displacement amplification structure. Also, each of one end of the first displacement amplification structure and one end of the second displacement amplification structure may be fixed on the piezoelectric actuator.

Piezoelectric device including displacement amplification of scissor-hinge structure

The present disclosure relates to a device for playing an acoustic sound and a touch sensation, and more particularly, to a device for emitting a sound to a front surface of a speaker and playing a touch sensation feedback to a rear surface of the speaker through a driving modulation using two or more speakers while simultaneously concentrating an acoustic pressure generated according to a vibration of a membrane of the speaker to a surface of a module through a movement pipe when an audio signal is applied.

Devices for playing acoustic sound and touch sensation

Growing community of inventors

Daejeon, South Korea

Wooseup Youm