Display device having vibration electrodes in vibration area and method of driving the same
AssigneeSamsung Display Co., Ltd.
InventorsJong Tae Kim, Young Sik Kim, Jung Hak Kim
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Abstract
A display device includes: a display unit including a display area and a non-display area; and a vibration generating unit disposed on the display unit and including a vibration area and a non-vibration area. The vibration generating unit includes first vibration electrodes, second vibration electrodes facing the first vibration electrodes, and vibration layers disposed between the first vibration electrodes and the second vibration electrodes, and the vibration layers are disposed in the vibration area and spaced apart from each other.
Claims18
A display device comprising:
- a display unit including a display area and a non-display area;
- and
- a vibration generating unit disposed on the display unit and including a vibration area and a non-vibration area,
- wherein the vibration generating unit comprises first vibration electrodes, second vibration electrodes facing the first vibration electrodes, vibration layers disposed between the first vibration electrodes and the second vibration electrodes, and an insulating layer,
- wherein the vibration layers are disposed in the vibration area and spaced apart from each other, and
- the insulating layer is disposed between the vibration layers and not disposed between the first vibration electrodes and second vibration electrodes overlapping each other, the insulating layer contacting only a side edge defining the first vibration electrode and an entire height of an edge defining the vibration layer.
A display device comprising:
- a display unit including a display area and a non-display area;
- a vibration generating unit disposed on the display unit and including a vibration area and a non-vibration area;
- and
- an insulating layer disposed on the display unit,
- wherein the vibration generating unit further includes vibration generating areas disposed in the vibration area and spaced apart from each other, and
- each of the vibration generating areas comprises:
- a first vibration electrode and a second vibration electrode facing each other;
- and
- a vibration layer disposed between the first vibration electrode and the second vibration electrode, and
- the insulating layer which is disposed in a same layer as the vibration layer and surrounds the vibration layer, and not disposed between the first vibration electrode and second vibration electrode overlapping each other, the insulating layer contacting only a side edge defining the first vibration electrode and an entire height of an edge defining the vibration layer.
A method of driving a display device comprising a display unit, a vibration generating unit disposed on the display unit and including vibration generating areas spaced apart from each other, and a touch detection unit disposed directly on the vibration generating unit, the method comprising:
- sensing a touch on the display device by using the touch detection unit;
- and
- providing a haptic feedback based on coordinates of the touch by using the vibration generating unit,
- wherein the providing the haptic feedback comprises generating vibrations by applying a driving voltage to a vibration generating area corresponding to the coordinates of the touch by using the vibration generating unit disposed between the touch detection unit and the display unit,
- wherein the vibration generating unit comprises first vibration electrodes, second vibration electrodes facing the first vibration electrodes, vibration layers disposed between the first vibration electrodes and the second vibration electrodes, and an insulating layer,
- wherein the vibration layers are disposed in the vibration area and spaced apart from each other, and
- the insulating layer is disposed between the vibration layers and not disposed between the first vibration electrodes and second vibration electrodes overlapping each other, the insulating layer contacting only a side edge defining the first vibration electrode and an entire height of an edge defining the vibration layer.
Dependencies are inferred from the claim text.