Abstract:
A display apparatus is provided, and the display apparatus includes a display member including a plurality of pixels configured to display an image and a vibration apparatus configured to vibrate the display member based on a haptic driving signal. The haptic driving signal comprises a texture signal and an ultrasonic signal. Accordingly, the display apparatus may provide a user with a tactile feedback including a virtual texture.
Abstract:
A display apparatus includes a display panel displaying an image and a vibration generating device disposed on a rear surface of the display panel to vibrate the display panel. The vibration generating device includes a piezoelectric structure including a first region and a second region, the first region has a vibration characteristic of a first frequency, and the second region has a vibration characteristic of a second frequency which differs from the first frequency.
Abstract:
The present disclosure related to a touch sensitive element and a display device including the same. The touch sensitive element according to an exemplary aspect of the present disclosure includes an electroactive film which is formed of a polyvinylidene fluoride (PVDF) based polymer and a cyanide (CN) based polymer.
Abstract:
Provided is a display device. The display device includes: a touch sensitive element including an electroactive layer and a plurality of electrodes disposed on at least one of the top surface and the bottom surface of the electroactive layer; a shielding layer on the touch sensitive element; a display panel on the shielding layer; and a touch sensor integrated in the display panel and including a plurality of first touch electrodes and a plurality of second touch electrodes spaced apart from the plurality of first touch electrodes, and the shielding layer is electrically connected with the plurality of first touch electrodes or the plurality of second touch electrodes.
Abstract:
A piezoelectric device may include a piezoelectric device layer including a first material and a second material surrounded by the first material, a first electrode portion disposed at a first surface of the piezoelectric device layer, and a second electrode portion disposed at a second surface of the piezoelectric device layer opposite to the first surface. The piezoelectric device layer is represented by Formula 1 "0.96(Na a K 1 - a )(Nb b (T 1-b ))O 3 - (0.04-x)MZrO 3 - x(Bi c Ag 1-c )ZrO 3 ( + d mol% NaNbO 3 ", wherein T is Sb or Ta, M is Sr, Ba or Ca, 0.4 ≤ a ≤ 0.6, 0.90 ≤ b ≤ 0.98, 0.4 ≤ c ≤ 0.6, 0 ≤ d ≤ 5.0, and 0 ≤ x ≤ 0.04.
Abstract:
Provided are a touch sensitive element and a manufacturing method thereof. The manufacturing method for the touch sensitive element according to an embodiment of the present disclosure includes forming an electroactive polymer coating layer by applying an electroactive polymer solution on a substrate; forming an electroactive layer by heating and pressurizing the electroactive polymer coating layer using a hot press roller; and forming an electrode on the electroactive layer.
Abstract:
Provided are a touch sensitive element and a display device including the same. According to the exemplary embodiment of the present disclosure, a touch sensitive element, includes: an electroactive layer which is formed of electroactive polymer (EAP); an electrode which is disposed on at least one surface of the electroactive layer; and a hard coating layer which is disposed on the electroactive layer and the electrode and has a negative coefficient of thermal expansion (CTE). Therefore, vibration effect in a vertical direction is maximized and impact resistance may be improved.