User input device and electronic apparatus including the same
First Claim
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1. A user input device of an electronic apparatus, the user input device comprising:
- a first substrate on which a plurality of first electrodes are formed;
a second substrate that is spaced apart from the first substrate, and on which a plurality of second electrodes are formed,wherein an array of driving electrode pairs is defined by the first electrodes and the second electrodes;
an electro-rheological fluid contained in a gap between the first substrate and the second substrate;
a plurality of lighting keypad units disposed on the second substrate, each lighting keypad unit of the plurality of lighting keypad units comprising at least one key symbol,wherein the at least one key symbol of one of the plurality of lighting keypad units is different than the at least one key symbol of another one of the plurality of lighting keypad units, anda control unit which cuts off a driving voltage which is applied to at least a first portion of the driving electrode pairs to drive the electro-rheological fluid from at least a second portion of the driving electrode pairs when the second substrate has a predetermined magnitude of displacement in response to a pressure applied thereto.
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Abstract
A user input device and electronic apparatus are provided. The user input device includes a first substrate on which first electrodes are formed; a second substrate disposed to be spaced apart from the first substrate, and on which second electrodes are formed; an electro-rheological fluid contained in a gap between the first substrate and the second substrate; and one or more lighting keypad units disposed on the second substrate. Each of the lighting keypad unit includes one or more key symbols which are different from one another. The electronic apparatus includes one or more user input devices.
110 Citations
20 Claims
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1. A user input device of an electronic apparatus, the user input device comprising:
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a first substrate on which a plurality of first electrodes are formed; a second substrate that is spaced apart from the first substrate, and on which a plurality of second electrodes are formed, wherein an array of driving electrode pairs is defined by the first electrodes and the second electrodes; an electro-rheological fluid contained in a gap between the first substrate and the second substrate; a plurality of lighting keypad units disposed on the second substrate, each lighting keypad unit of the plurality of lighting keypad units comprising at least one key symbol, wherein the at least one key symbol of one of the plurality of lighting keypad units is different than the at least one key symbol of another one of the plurality of lighting keypad units, and a control unit which cuts off a driving voltage which is applied to at least a first portion of the driving electrode pairs to drive the electro-rheological fluid from at least a second portion of the driving electrode pairs when the second substrate has a predetermined magnitude of displacement in response to a pressure applied thereto. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 19, 20)
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10. A user input device of an electronic apparatus, the user input device comprising:
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an input device body comprising; a first substrate; a second substrate; an electro-rheological (ER) fluid contained in a gap between the first substrate and the second substrate, and an array of driving electrode pairs which is formed on the first substrate and the second substrate, and is configured to induce an electric field being locally in the gap when a driving voltage is applied across the driving electrode pairs; a plurality of lighting keypad units disposed on the second substrate, each of the plurality of lighting keypad units comprising at least one key symbol, the at least one key symbol of one of the plurality of lighting keypad units being different than the at least one key symbol of another one of the plurality of lighting keypad units; and a control unit which operates one of the plurality of lighting keypad units according to a type of a running application of the user input device or a stage of the running application, and controls to cut off the driving voltage from at least a portion of the driving electrode pairs when the second substrate has a predetermined magnitude of displacement in response to a pressure applied thereto. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification