Display device structure
AssigneeHitachi, Ltd.
InventorsAkio Kumada, Takahiko Ihochi, Makoto Homma, Masashi Tanaka
Life of this patent
Estimating the term…
Abstract
A display device structure comprising a casing, a display panel placed in the casing, a transparent covering and vibrating plate member on the front side of the display panel and an actuator for the plate member. The covering and vibrating plate member is carried on the casing through an elastic member interposed between the peripheral portion of the plate member and the casing. By this arrangement the plate member is capable of effectively generating sound outward upon reception of vibrating force from the actuator.
Claims13
A display device structure comprising an electrically conductive casing;
- a display panel placed in the casing;
- a transparent covering and vibrating plate member having its peripheral portion carried on the casing and being on a front side of the display panel;
- a transparent piezoelectric plate and a pair of transparent electrodes sandwiching the piezoelectric plate, the piezoelectric plate and electrodes being secured to and integral with the covering and vibrating plate member so that mechanical force produced by the piezoelectric plate is effectively transmitted to the plate member, wherein an elastic and electrically conductive member is provided between the peripheral portion of the plate member and the casing;
- and a double layer including a frame-like blind layer and an electrically conductive frame-like layer, the frame-like blind layer being in contact with the peripheral portion of the plate member and the electrically conductive frame-like layer being in electrical contact with the casing.
A display device structure comprising an electrically conductive casing, a display panel placed in the casing, a transparent covering and vibrating plate member having its peripheral portion carried on the casing and being on a front side of the display panel, and a transparent piezoelectric plate and a pair of transparent electrodes sandwiching the piezoelectric plate, the piezoelectric plate and electrodes being secured to and integral with the covering and vibrating plate member so that mechanical force produced by the piezoelectric plate is effectively transmitted to the plate member, wherein an elastic and electrically conductive packing member is provided between the peripheral portion of the plate member and the casing, said packing member electrically interconnecting one of said electrodes and said electrically conductive casing.
Dependencies are inferred from the claim text.